From 8efa367df6c306b1da23864b8c39621be3080858 Mon Sep 17 00:00:00 2001 From: Lars Brinkhoff Date: Mon, 19 Feb 2018 10:24:44 +0100 Subject: [PATCH] Fixes for ITS. --- /eval.126 | 4247 +++++++++++++++++++++++++++++++++++++ /fopen.63 | 4722 ++++++++++++++++++++++++++++++++++++++++++ /ldgc.101 | 506 +++++ /main.353 | 2060 ++++++++++++++++++ /mappur.163 | 1987 ++++++++++++++++++ /muddle.347 | 1254 +++++++++++ /readch.215 | 1410 +++++++++++++ /save.177 | 799 +++++++ /secagc.82 | 2291 ++++++++++++++++++++ /uuoh.184 | 1096 ++++++++++ 10 files changed, 20372 insertions(+) create mode 100644 /eval.126 create mode 100644 /fopen.63 create mode 100644 /ldgc.101 create mode 100644 /main.353 create mode 100644 /mappur.163 create mode 100644 /muddle.347 create mode 100644 /readch.215 create mode 100644 /save.177 create mode 100644 /secagc.82 create mode 100644 /uuoh.184 diff --git a//eval.126 b//eval.126 new file mode 100644 index 0000000..e7983b2 --- /dev/null +++ b//eval.126 @@ -0,0 +1,4247 @@ +TITLE EVAL -- MUDDLE EVALUATOR + +RELOCATABLE + +.SYMTAB 3337. + +; GERALD JAY SUSSMAN, 1971. REWRITTEN MANY TIMES SINCE C. REEVE (1972--1974) + + +.GLOBAL BINDID,LPROG,GLOBSP,GLOBASE,SPBASE,TPBASE,PTIME,SWAP,CHFRAM +.GLOBAL IGVAL,CHKARG,NXTDCL,TPOVFL,CHFRM,PROCHK,CHFSWP,VECBOT,TYPSGR +.GLOBAL ILVAL,ER1ARG,SPECBIND,MAKACT,SPECSTORE,MAKTUP,TPALOC,IBIND,SSPECS +.GLOBAL IDVAL,EVECTO,EUVECT,CHARGS,BCKTRK,CELL,ILOC,IGLOC,CHKDCL,SSPEC1 +.GLOBAL PDLBUF,MESS,FACTI,CHKARG,MAKENV,PSTAT,BNDV,UNBOU,UNAS,IGDECL +.GLOBAL 1STEPR,SEGMNT,SEGLST,NAPT,EVTYPE,EVATYP,APTYPE,APLTYP,APLQ,IDVAL1 +.GLOBAL TESTR,VALG,TYPG,INCR1,TMATCH,TYPMIS,SAT,MAKACT,NTPALO,SPECBND +.GLOBAL TPGROW,CHKAB,TYPSEG,NXTLM,MONCH0,CHFINI,RMONC0,IMPURIFY,ICONS,INCONS +.GLOBAL CILVAL,CISET,CIGVAL,CSETG,MAPPLY,CLLOC,CGLOC,CASSQ,CGASSQ,CBOUND +.GLOBAL IIGLOC,CHUNW,IUNWIN,UNWIN2,SPCCHK,CURFCN,TMPLNT,TD.LNT,TBINIT +.GLOBAL SPECBE,BSETG,GLOTOP,CANDP,CORP,TFA,TMA,DSTORE,PVSTOR,SPSTOR +.GLOBAL AGC,GVLINC,LVLINC,CGBOUN,IEVECT,MAKTU2,STOSTR,HIBOT,POPUNW,ISTRUC +.GLOBAL NOSET,NOSETG + +.INSRT MUDDLE > + +MONITOR + + +; ENTRY TO EXPAND A MACRO + +MFUNCTION EXPAND,SUBR + + ENTRY 1 + + MOVE PVP,PVSTOR+1 + MOVEI A,PVLNT*2+1(PVP) + HRLI A,TFRAME + MOVE B,TBINIT+1(PVP) + HLL B,OTBSAV(B) + PUSH TP,A + PUSH TP,B + MOVEI B,-1(TP) + JRST AEVAL2 + +; MAIN EVAL ENTRANCE + +IMFUNCTION EVAL,SUBR + + ENTRY + + MOVE PVP,PVSTOR+1 + SKIPE C,1STEPR+1(PVP) ; BEING 1 STEPPED? + JRST 1STEPI ; YES HANDLE +EVALON: HLRZ A,AB ;GET NUMBER OF ARGS + CAIE A,-2 ;EXACTLY 1? + JRST AEVAL ;EVAL WITH AN ALIST +SEVAL: GETYP A,(AB) ;GET TYPE OF ARG + SKIPE C,EVATYP+1 ; USER TYPE TABLE? + JRST EVDISP +SEVAL1: CAIG A,NUMPRI ;PRIMITIVE? + JRST SEVAL2 ;YES-DISPATCH + +SELF: MOVE A,(AB) ;TYPES WHICH EVALUATE + MOVE B,1(AB) + JRST EFINIS ;TO SELF-EG NUMBERS + +SEVAL2: HRRO A,EVTYPE(A) + JRST (A) + +; HERE FOR USER EVAL DISPATCH + +EVDISP: ADDI C,(A) ; POINT TO SLOT + ADDI C,(A) + SKIPE (C) ; SKIP EITHER A LOSER OR JRST DISP + JRST EVDIS1 ; APPLY EVALUATOR + SKIPN C,1(C) ; GET ADDR OR GO TO PURE DISP + JRST SEVAL1 + JRST (C) + +EVDIS1: PUSH TP,(C) + PUSH TP,1(C) + PUSH TP,(AB) + PUSH TP,1(AB) + MCALL 2,APPLY ; APPLY HACKER TO OBJECT + JRST EFINIS + + +; EVAL DISPATCH TABLE + +IF2,SELFS==400000,,SELF + +DISTBL EVTYPE,SELFS,[[TFORM,EVFORM],[TLIST,EVLIST],[TVEC,EVECT],[TUVEC,EUVEC] +[TSEG,ILLSEG]] + + +;WATCH FOR SUBTLE BUG 43 LERR,LPROG OR BINDID +AEVAL: + CAIE A,-4 ;EXACTLY 2 ARGS? + JRST WNA ;NO-ERROR + GETYP A,2(AB) ;CHECK THAT WE HAVE A FRAME + CAIE A,TACT + CAIN A,TFRAME + JRST .+3 + CAIE A,TENV + JRST TRYPRO ; COULD BE PROCESS + MOVEI B,2(AB) ; POINT TO FRAME +AEVAL2: PUSHJ P,CHENV ; HACK ENVIRONMENT CHANGE +AEVAL1: PUSH TP,(AB) + PUSH TP,1(AB) + MCALL 1,EVAL +AEVAL3: HRRZ 0,FSAV(TB) + CAIN 0,EVAL + JRST EFINIS + JRST FINIS + +TRYPRO: CAIE A,TPVP ; SKIP IF IT IS A PROCESS + JRST WTYP2 + MOVE C,3(AB) ; GET PROCESS + CAMN C,PVSTOR ; DIFFERENT FROM ME? + JRST SEVAL ; NO, NORMAL EVAL WINS + MOVE B,SPSTO+1(C) ; GET SP FOR PROCESS + MOVE D,TBSTO+1(C) ; GET TOP FRAME + HLL D,OTBSAV(D) ; TIME IT + MOVEI C,PVLNT*2+1(C) ; CONS UP POINTER TO PROC DOPE WORD + HRLI C,TFRAME ; LOOK LIK E A FRAME + PUSHJ P,SWITSP ; SPLICE ENVIRONMENT + JRST AEVAL1 + +; ROUTINE TO CHANGE LOOK UP PATH FOR BINDINGS + +CHENV: PUSHJ P,CHFRM ; CHECK OUT FRAME + MOVE C,(B) ; POINT TO PROCESS + MOVE D,1(B) ; GET TB POINTER FROM FRAME + CAMN SP,SPSAV(D) ; CHANGE? + POPJ P, ; NO, JUST RET + MOVE B,SPSAV(D) ; GET SP OF INTEREST +SWITSP: MOVSI 0,TSKIP ; SET UP SKIP + HRRI 0,1(TP) ; POINT TO UNBIND PATH + MOVE A,PVSTOR+1 + ADD A,[BINDID,,BINDID] ; BIND THE BINDING ID + PUSH TP,BNDV + PUSH TP,A + PUSH TP,$TFIX + AOS A,PTIME ; NEW ID + PUSH TP,A + MOVE E,TP ; FOR SPECBIND + PUSH TP,0 + PUSH TP,B + PUSH TP,C ; SAVE PROCESS + PUSH TP,D + PUSHJ P,SPECBE ; BIND BINDID + MOVE SP,TP ; GET NEW SP + SUB SP,[3,,3] ; SET UP SP FORK + MOVEM SP,SPSTOR+1 + POPJ P, + + +; HERE TO EVALUATE A FORM (99% OF EVAL'S WORK) + +EVFORM: SKIPN C,1(AB) ; EMPTY FORM, RETURN FALSE + JRST EFALSE + GETYP A,(C) ; 1ST ELEMENT OF FORM + CAIE A,TATOM ; ATOM? + JRST EV0 ; NO, EVALUATE IT + MOVE B,1(C) ; GET ATOM + PUSHJ P,IGVAL ; GET ITS GLOBAL VALUE + +; SPECIAL HACK TO SPEED UP LVAL AND GVAL CALLS + + CAIE B,LVAL + CAIN B,GVAL + JRST ATMVAL ; FAST ATOM VALUE + + GETYP 0,A + CAIE 0,TUNBOU ; BOUND? + JRST IAPPLY ; YES APPLY IT + + MOVE C,1(AB) ; LOOK FOR LOCAL + MOVE B,1(C) + PUSHJ P,ILVAL + GETYP 0,A + CAIE 0,TUNBOU + JRST IAPPLY ; WIN, GO APPLY IT + + PUSH TP,$TATOM + PUSH TP,EQUOTE UNBOUND-VARIABLE + PUSH TP,$TATOM + MOVE C,1(AB) ; FORM BACK + PUSH TP,1(C) + PUSH TP,$TATOM + PUSH TP,IMQUOTE VALUE + MCALL 3,ERROR ; REPORT THE ERROR + JRST IAPPLY + +EFALSE: MOVSI A,TFALSE ; SPECIAL FALSE FOR EVAL OF EMPTY FORM + MOVEI B,0 + JRST EFINIS + +ATMVAL: HRRZ D,(C) ; CDR THE FORM + HRRZ 0,(D) ; AND AGAIN + JUMPN 0,IAPPLY + GETYP 0,(D) ; MAKE SURE APPLYING TO ATOM + CAIE 0,TATOM + JRST IAPPLY + MOVEI E,IGVAL ; ASSUME GLOBAAL + CAIE B,GVAL ; SKIP IF OK + MOVEI E,ILVAL ; ELSE USE LOCAL + PUSH P,B ; SAVE SUBR + MOVE B,(D)+1 ; CLR BUG #1637 (GET THE ATOM FOR THE SUBR) + PUSHJ P,(E) ; AND GET VALUE + CAME A,$TUNBOU + JRST EFINIS ; RETURN FROM EVAL + POP P,B + MOVSI A,TSUBR ; CAUSE REAL SUBR TO GET EROR + JRST IAPPLY + +; HERE FOR 1ST ELEMENT NOT A FORM + +EV0: PUSHJ P,FASTEV ; EVAL IT + +; HERE TO APPLY THINGS IN FORMS + +IAPPLY: PUSH TP,(AB) ; SAVE THE FORM + PUSH TP,1(AB) + PUSH TP,A + PUSH TP,B ; SAVE THE APPLIER + PUSH TP,$TFIX ; AND THE ARG GETTER + PUSH TP,[ARGCDR] + PUSHJ P,APLDIS ; GO TO INTERNAL APPLIER + JRST EFINIS ; LEAVE EVAL + +; HERE TO EVAL 1ST ELEMENT OF A FORM + +FASTEV: MOVE PVP,PVSTOR+1 + SKIPE 1STEPR+1(PVP) ; BEING 1 STEPPED? + JRST EV02 ; YES, LET LOSER SEE THIS EVAL + GETYP A,(C) ; GET TYPE + SKIPE D,EVATYP+1 ; USER TABLE? + JRST EV01 ; YES, HACK IT +EV03: CAIG A,NUMPRI ; SKIP IF SELF + SKIPA A,EVTYPE(A) ; GET DISPATCH + MOVEI A,SELF ; USE SLEF + +EV04: CAIE A,SELF ; IF EVAL'S TO SELF, JUST USE IT + JRST EV02 + MOVSI A,TLIST + MOVE PVP,PVSTOR+1 + MOVEM A,CSTO(PVP) + INTGO + SETZM CSTO(PVP) + HLLZ A,(C) ; GET IT + MOVE B,1(C) + JSP E,CHKAB ; CHECK DEFERS + POPJ P, ; AND RETURN + +EV01: ADDI D,(A) ; POINT TO SLOT OF USER EVAL TABLE + ADDI D,(A) + SKIPE (D) ; EITHER NOT GIVEN OR SIMPLE + JRST EV02 + SKIPN 1(D) ; SKIP IF SIMPLE + JRST EV03 ; NOT GIVEN + MOVE A,1(D) + JRST EV04 + +EV02: PUSH TP,(C) + HLLZS (TP) ; FIX UP LH + PUSH TP,1(C) + JSP E,CHKARG + MCALL 1,EVAL + POPJ P, + + +; MAPF/MAPR CALL TO APPLY + + IMQUOTE APPLY + +MAPPLY: JRST APPLY + +; APPLY, FALLS INTO EVAL'S APPLY CODE AT APLDIS + +IMFUNCTION APPLY,SUBR + + ENTRY + + JUMPGE AB,TFA ; MUST BE AT LEAST 1 ARGUMENT + MOVE A,AB + ADD A,[2,,2] + PUSH TP,$TAB + PUSH TP,A + PUSH TP,(AB) ; SAVE FCN + PUSH TP,1(AB) + PUSH TP,$TFIX ; AND ARG GETTER + PUSH TP,[SETZ APLARG] + PUSHJ P,APLDIS + JRST FINIS + +; STACKFROM, ALSO FALLS INTO EVAL'S APPLIER AT APLDIS + +IMFUNCTION STACKFORM,FSUBR + + ENTRY 1 + + GETYP A,(AB) + CAIE A,TLIST + JRST WTYP1 + MOVEI A,3 ; CHECK ALL GOODIES SUPPLIED + HRRZ B,1(AB) + + JUMPE B,TFA + HRRZ B,(B) ; CDR IT + SOJG A,.-2 + + HRRZ C,1(AB) ; GET LIST BACK + PUSHJ P,FASTEV ; DO A FAST EVALUATION + PUSH TP,(AB) + HRRZ C,@1(AB) ; POINT TO ARG GETTING FORMS + PUSH TP,C + PUSH TP,A ; AND FCN + PUSH TP,B + PUSH TP,$TFIX + PUSH TP,[SETZ EVALRG] + PUSHJ P,APLDIS + JRST FINIS + + +; OFFSETS FOR TEMPORARIES ETC. USED IN APPLYING STUFF + +E.FRM==0 ; POINTS TO FORM BEING EVALED (OR ARGS FOR APPLY STACKFORM) +E.FCN==2 ; FUNCTION/SUBR/RSUBR BEING APPLIED +E.ARG==4 ; POINTS TO ARG GETTING ROUTINE (<0 => MUST EVAL ARGS) +E.EXTR==6 ; CONTAINS 1ST ARG IN USER APPLY CASE +E.SEG==10 ; POINTS TO SEGMENT IN FORM BEING HACKED +E.CNT==12 ; COUNTER FOR TUPLES OF ARGS +E.DECL==14 ; POINTS TO DECLARATION LIST IN FUNCTIONS +E.ARGL==16 ; POINTS TO ARG LIST IN FUNCTIONS +E.HEW==20 ; POINTS TO HEWITT ATOM IF IT EXISTS + +E.VAL==E.ARGL ; VALUE TYPE FOR RSUBRS + +MINTM==E.EXTR+2 ; MIN # OF TEMPS EVER ALLOCATED +E.TSUB==E.CNT+2 ; # OF TEMPS FOR SUBR/NUMBER APPLICATION +XP.TMP==E.HEW-E.EXTR ; # EXTRA TEMPS FOR FUNCTION APPLICATION +R.TMP==4 ; TEMPS AFTER ARGS ARE BOUND +TM.OFF==E.HEW+2-R.TMP ; TEMPS TO FLUSH AFTER BIND OF ARGS + +RE.FCN==0 ; AFTER BINDING CONTAINS FCN BODY +RE.ARG==2 ; ARG LIST AFTER BINDING + +; GENERAL THING APPLYER + +APLDIS: PUSH TP,[0] ; SLOT USED FOR USER APPLYERS + PUSH TP,[0] +APLDIX: GETYP A,E.FCN(TB) ; GET TYPE + +APLDI: SKIPE D,APLTYP+1 ; USER TABLE EXISTS? + JRST APLDI1 ; YES, USE IT +APLDI2: CAILE A,NUMPRI ; SKIP IF NOT PRIM + JRST NAPT + HRRO A,APTYPE(A) + JRST (A) + +APLDI1: ADDI D,(A) ; POINT TO SLOT + ADDI D,(A) + SKIPE (D) ; SKIP IF NOT GIVEN OR STANDARD + JRST APLDI3 +APLDI4: SKIPE D,1(D) ; GET DISP + JRST (D) + JRST APLDI2 ; USE SYSTEM DISPATCH + +APLDI3: SKIPE E.EXTR+1(TB) ; SKIP IF HAVEN'T BEEN HERE BEFORE + JRST APLDI4 + MOVE A,(D) ; GET ITS HANDLER + EXCH A,E.FCN(TB) ; AND USE AS FCN + MOVEM A,E.EXTR(TB) ; SAVE + MOVE A,1(D) + EXCH A,E.FCN+1(TB) + MOVEM A,E.EXTR+1(TB) ; STASH OLD FCN AS EXTRG + GETYP A,(D) ; GET TYPE + JRST APLDI + + +; APPLY DISPATCH TABLE + +DISTBL APTYPE,,[[TSUBR,APSUBR],[TFSUBR,APFSUB],[TRSUBR,APRSUB],[TFIX,APNUM] +[TEXPR,APEXPR],[TFUNAR,APFUNARG],[TENTER,APENTR],[TMACRO,APMACR],[TOFFS,APNUM]] + +; SUBR TO SAY IF TYPE IS APPLICABLE + +MFUNCTION APPLIC,SUBR,[APPLICABLE?] + + ENTRY 1 + + GETYP A,(AB) + PUSHJ P,APLQ + JRST IFALSE + JRST TRUTH + +; HERE TO DETERMINE IF A TYPE IS APPLICABLE + +APLQ: PUSH P,B + SKIPN B,APLTYP+1 + JRST USEPUR ; USE PURE TABLE + ADDI B,(A) + ADDI B,(A) ; POINT TO SLOT + SKIPG 1(B) ; SKIP IF WINNER + SKIPE (B) ; SKIP IF POTENIAL LOSER + JRST CPPJ1B ; WIN + SKIPE 1(B) ; SKIP IF MUST USE PURE TABBLE + JRST CPOPJB +USEPUR: CAILE A,NUMPRI ; SKIP IF NOT PRIM + JRST CPOPJB + SKIPL APTYPE(A) ; SKIP IF APLLICABLE +CPPJ1B: AOS -1(P) +CPOPJB: POP P,B + POPJ P, + +; FSUBR APPLYER + +APFSUBR: + SKIPN E.EXTR(TB) ; IF EXTRA ARG + SKIPGE E.ARG+1(TB) ; OR APPLY/STACKFORM, LOSE + JRST BADFSB + MOVE A,E.FCN+1(TB) ; GET FCN + HRRZ C,@E.FRM+1(TB) ; GET ARG LIST + SUB TP,[MINTM,,MINTM] ; FLUSH UNWANTED TEMPS + PUSH TP,$TLIST + PUSH TP,C ; ARG TO STACK + .MCALL 1,(A) ; AND CALL + POPJ P, ; AND LEAVE + +; SUBR APPLYER + +APSUBR: + PUSHJ P,PSH4ZR ; SET UP ZEROED SLOTS + SKIPG E.ARG+1(TB) + AOS E.CNT(TB) ; INDICATES IF MUST EVAL ARGS + MOVSI A,400000 ; MAKE SURE OF GOOD INDIRECT + IORM A,E.ARG+1(TB) + SKIPN A,E.EXTR(TB) ; FUNNY ARGS + JRST APSUB1 ; NO, GO + MOVE B,E.EXTR+1(TB) ; YES , GET VAL + JRST APSUB2 ; AND FALL IN + +APSUB1: PUSHJ P,@E.ARG+1(TB) ; EAT AN ARG + JRST APSUBD ; DONE +APSUB2: PUSH TP,A + PUSH TP,B + AOS E.CNT+1(TB) ; COUNT IT + JRST APSUB1 + +APSUBD: MOVE A,E.CNT+1(TB) ; FINISHED, GET COUNT + MOVE B,E.FCN+1(TB) ; AND SUBR + GETYP 0,E.FCN(TB) + CAIN 0,TENTER + JRST APENDN + PUSHJ P,BLTDN ; FLUSH CRUFT + .ACALL A,(B) + POPJ P, + +BLTDN: MOVEI C,(TB) ; POINT TO DEST + HRLI C,E.TSUB(C) ; AND SOURCE + BLT C,-E.TSUB(TP) ;BL..............T + SUB TP,[E.TSUB,,E.TSUB] + POPJ P, + +APENDN: PUSHJ P,BLTDN +APNDN1: .ECALL A,(B) + POPJ P, + +; FLAGS FOR RSUBR HACKER + +F.STR==1 +F.OPT==2 +F.QUO==4 +F.NFST==10 + +; APPLY OBJECTS OF TYPE RSUBR + +APENTR: +APRSUBR: + MOVE C,E.FCN+1(TB) ; GET THE RSUBR + CAML C,[-5,,] ; IS IT LONG ENOUGH FOR DECLS + JRST APSUBR ; NO TREAT AS A SUBR + GETYP 0,4(C) ; GET TYPE OF 3D ELEMENT + CAIE 0,TDECL ; DECLARATION? + JRST APSUBR ; NO, TREAT AS SUBR + PUSHJ P,PSH4ZR ; ALLOCATE SOME EXTRA ROOM + PUSH TP,$TDECL ; PUSH UP THE DECLS + PUSH TP,5(C) + PUSH TP,$TLOSE ; SAVE ROOM FOR VAL DECL + PUSH TP,[0] + SKIPG E.ARG+1(TB) + AOS E.CNT(TB) ; INDICATES IF MUST EVAL ARGS + MOVSI A,400000 ; MAKE SURE OF GOOD INDIRECT + IORM A,E.ARG+1(TB) + + SKIPN E.EXTR(TB) ; "EXTRA" ARG? + JRST APRSU1 ; NO, + MOVE 0,[SETZ EXTRGT] ; CHANGE THE ACCESS FCN + EXCH 0,E.ARG+1(TB) + HRRM 0,E.ARG(TB) ; REMEMBER IT + +APRSU1: MOVEI 0,0 ; INIT FLAG REGISTER + PUSH P,0 ; SAVE + +APRSU2: HRRZ A,E.DECL+1(TB) ; GET DECL LIST + JUMPE A,APRSU3 ; DONE! + HRRZ B,(A) ; CDR IT + MOVEM B,E.DECL+1(TB) + PUSHJ P,NXTDCL ; IS NEXT THING A STRING? + JRST APRSU4 ; NO, BETTER BE A TYPE + CAMN B,[ASCII /VALUE/] + JRST RSBVAL ; SAVE VAL DECL + TRON 0,F.NFST ; IF NOT FIRST, LOSE + CAME B,[ASCII /CALL/] ; CALL DECL + JRST APRSU7 + SKIPE E.CNT(TB) ; LEGAL? + JRST MPD + MOVE C,E.FRM(TB) + MOVE D,E.FRM+1(TB) ; GET FORM + JRST APRS10 ; HACK IT + +APRSU5: TROE 0,F.STR ; STRING STRING? + JRST MPD ; LOSER + CAMN B,[] + JRST .+3 + CAME B,[+1] ; OPTIONA? + JRST APRSU8 + TROE 0,F.OPT ; CHECK AND SET + JRST MPD ; OPTINAL OPTIONAL LOSES + JRST APRSU2 ; TO MAIN LOOP + +APRSU7: CAME B,[ASCII /QUOTE/] + JRST APRSU5 + TRO 0,F.STR + TROE 0,F.QUO ; TURN ON AND CHECK QUOTE + JRST MPD ; QUOTE QUOTE LOSES + JRST APRSU2 ; GO TO END OF LOOP + + +APRSU8: CAME B,[ASCII /ARGS/] + JRST APRSU9 + SKIPE E.CNT(TB) ; SKIP IF LEGAL + JRST MPD + HRRZ D,@E.FRM+1(TB) ; GET ARG LIST + MOVSI C,TLIST + +APRS10: HRRZ A,(A) ; GET THE DECL + MOVEM A,E.DECL+1(TB) ; CLOBBER + HRRZ B,(A) ; CHECK FOR TOO MUCH + JUMPN B,MPD + MOVE B,1(A) ; GET DECL + HLLZ A,(A) ; GOT THE DECL + MOVEM 0,(P) ; SAVE FLAGS + JSP E,CHKAB ; CHECK DEFER + PUSH TP,C + PUSH TP,D ; SAVE + PUSHJ P,TMATCH + JRST WTYP + AOS E.CNT+1(TB) ; COUNT ARG + JRST APRDON ; GO CALL RSUBR + +RSBVAL: HRRZ A,E.DECL+1(TB) ; GET DECL + JUMPE A,MPD + HRRZ B,(A) ; POINT TO DECL + MOVEM B,E.DECL+1(TB) ; SAVE NEW DECL POINTER + PUSHJ P,NXTDCL + JRST .+2 + JRST MPD + MOVEM A,E.VAL+1(TB) ; SAVE VAL DECL + MOVSI A,TDCLI + MOVEM A,E.VAL(TB) ; SET ITS TYPE + JRST APRSU2 + + +APRSU9: CAME B,[ASCII /TUPLE/] + JRST MPD + MOVEM 0,(P) ; SAVE FLAGS + HRRZ A,(A) ; CDR DECLS + MOVEM A,E.DECL+1(TB) + HRRZ B,(A) + JUMPN B,MPD ; LOSER + PUSH P,[0] ; COUNT ELEMENTS IN TUPLE + +APRTUP: PUSHJ P,@E.ARG+1(TB) ; GOBBLE ARGS + JRST APRTPD ; DONE + PUSH TP,A + PUSH TP,B + AOS (P) ; COUNT IT + JRST APRTUP ; AND GO + +APRTPD: POP P,C ; GET COUNT + ADDM C,E.CNT+1(TB) ; UPDATE MAIN COUNT + ASH C,1 ; # OF WORDS + HRLI C,TINFO ; BUILD FENCE POST + PUSH TP,C + PUSHJ P,TBTOTP ; GEN REL OFFSET TO TOP + PUSH TP,D + HRROI D,-1(TP) ; POINT TO TOP + SUBI D,(C) ; TO BASE + TLC D,-1(C) + MOVSI C,TARGS ; BUILD TYPE WORD + HLR C,OTBSAV(TB) + MOVE A,E.DECL+1(TB) + MOVE B,1(A) + HLLZ A,(A) ; TYPE/VAL + JSP E,CHKAB ; CHECK + PUSHJ P,TMATCH ; GOTO TYPE CHECKER + JRST WTYP + + SUB TP,[2,,2] ; REMOVE FENCE POST + +APRDON: SUB P,[1,,1] ; FLUSH CRUFT + MOVE A,E.CNT+1(TB) ; GET # OF ARGS + MOVE B,E.FCN+1(TB) + GETYP 0,E.FCN(TB) ; COULD BE ENTRY + MOVEI C,(TB) ; PREPARE TO BLT DOWN + HRLI C,E.TSUB+2(C) + BLT C,-E.TSUB+2(TP) + SUB TP,[E.TSUB+2,,E.TSUB+2] + CAIE 0,TRSUBR + JRST APNDNX + .ACALL A,(B) ; CALL THE RSUBR + JRST PFINIS + +APNDNX: .ECALL A,(B) + JRST PFINIS + + + + +APRSU4: MOVEM 0,(P) ; SAVE FLAGS + MOVE B,1(A) ; GET DECL + HLLZ A,(A) + JSP E,CHKAB + MOVE 0,(P) ; RESTORE FLAGS + PUSH TP,A + PUSH TP,B ; AND SAVE + SKIPE E.CNT(TB) ; ALREADY EVAL'D + JRST APREV0 + TRZN 0,F.QUO + JRST APREVA ; MUST EVAL ARG + MOVEM 0,(P) + HRRZ C,@E.FRM+1(TB) ; GET ARG? + TRNE 0,F.OPT ; OPTIONAL + JUMPE C,APRDN + JUMPE C,TFA ; NO, TOO FEW ARGS + MOVEM C,E.FRM+1(TB) + HLLZ A,(C) ; GET ARG + MOVE B,1(C) + JSP E,CHKAB ; CHECK THEM + +APRTYC: MOVE C,A ; SET UP FOR TMATCH + MOVE D,B + EXCH B,(TP) + EXCH A,-1(TP) ; SAVE STUFF +APRS11: PUSHJ P,TMATCH ; CHECK TYPE + JRST WTYP + + MOVE 0,(P) ; RESTORE FLAGS + TRZ 0,F.STR + AOS E.CNT+1(TB) + JRST APRSU2 ; AND GO ON + +APREV0: TRNE 0,F.QUO ; ATTEMPT TO QUOTE ALREADY EVAL'D ARG ? + JRST MPD ; YES, LOSE +APREVA: PUSHJ P,@E.ARG+1(TB) ; EVAL ONE + TDZA C,C ; C=0 ==> NONE LEFT + MOVEI C,1 + MOVE 0,(P) ; FLAGS + JUMPN C,APRTYC ; GO CHECK TYPE +APRDN: SUB TP,[2,,2] ; FLUSH DECL + TRNE 0,F.OPT ; OPTIONAL? + JRST APRDON ; ALL DONE + JRST TFA + +APRSU3: TRNE 0,F.STR ; END IN STRING? + JRST MPD + PUSHJ P,@E.ARG+1(TB) ; SEE IF ANYMORE ARGS + JRST APRDON + JRST TMA + + +; STANDARD ARGUMENT GETTERS USED IN APPLYING THINGS + +ARGCDR: HRRZ C,@E.FRM+1(TB) ; POINT TO ARGLIST (NOTE: POINTS 1 BEFORE WHERE ARG IS) + JUMPE C,CPOPJ ; LEAVE IF DONE + MOVEM C,E.FRM+1(TB) + GETYP 0,(C) ; GET TYPE OF ARG + CAIN 0,TSEG + JRST ARGCD1 ; SEG MENT HACK + PUSHJ P,FASTEV + JRST CPOPJ1 + +ARGCD1: PUSH TP,$TFORM ; PRETEND WE ARE A FORM + PUSH TP,1(C) + MCALL 1,EVAL + MOVEM A,E.SEG(TB) + MOVEM B,E.SEG+1(TB) + PUSHJ P,TYPSEG ; GET SEG TYPE CODE + HRRM C,E.ARG(TB) ; SAVE IT IN OBSCCURE PLACE + MOVE C,DSTORE ; FIX FOR TEMPLATE + MOVEM C,E.SEG(TB) + MOVE C,[SETZ SGARG] + MOVEM C,E.ARG+1(TB) ; SET NEW ARG GETTER + +; FALL INTO SEGARG + +SGARG: INTGO + HRRZ C,E.ARG(TB) ; SEG CODE TO C + MOVE D,E.SEG+1(TB) + MOVE A,E.SEG(TB) + MOVEM A,DSTORE + PUSHJ P,NXTLM ; GET NEXT ELEMENT + JRST SEGRG1 ; DONE + MOVEM D,E.SEG+1(TB) + MOVE D,DSTORE ; KEEP TYPE WINNING + MOVEM D,E.SEG(TB) + SETZM DSTORE + JRST CPOPJ1 ; RETURN + +SEGRG1: SETZM DSTORE + MOVEI C,ARGCDR + HRRM C,E.ARG+1(TB) ; RESET ARG GETTER + JRST ARGCDR + +; ARGUMENT GETTER FOR APPLY + +APLARG: INTGO + SKIPL A,E.FRM+1(TB) ; ANY ARGS LEFT + POPJ P, ; NO, EXIT IMMEDIATELY + ADD A,[2,,2] + MOVEM A,E.FRM+1(TB) + MOVE B,-1(A) ; RET NEXT ARG + MOVE A,-2(A) + JRST CPOPJ1 + +; STACKFORM ARG GETTER + +EVALRG: SKIPN C,@E.FRM+1(TB) ; ANY FORM? + POPJ P, + PUSHJ P,FASTEV + GETYP A,A ; CHECK FOR FALSE + CAIN A,TFALSE + POPJ P, + MOVE C,E.FRM+1(TB) ; GET OTHER FORM + PUSHJ P,FASTEV + JRST CPOPJ1 + + +; HERE TO APPLY NUMBERS + +APNUM: PUSHJ P,PSH4ZR ; TP SLOTS + SKIPN A,E.EXTR(TB) ; FUNNY ARG? + JRST APNUM1 ; NOPE + MOVE B,E.EXTR+1(TB) ; GET ARG + JRST APNUM2 + +APNUM1: PUSHJ P,@E.ARG+1(TB) ; GET ARG + JRST TFA +APNUM2: PUSH TP,A + PUSH TP,B + PUSH TP,E.FCN(TB) + PUSH TP,E.FCN+1(TB) + PUSHJ P,@E.ARG+1(TB) + JRST .+2 + JRST APNUM3 + PUSHJ P,BLTDN ; FLUSH JUNK + MCALL 2,NTH + POPJ P, +; HACK FOR TURNING <3 .FOO .BAR> INTO +APNUM3: PUSH TP,A + PUSH TP,B + PUSHJ P,@E.ARG+1(TB) + JRST .+2 + JRST TMA + PUSHJ P,BLTDN + GETYP A,-5(TP) + PUSHJ P,ISTRUC ; STRUCTURED FIRST ARG? + JRST WTYP1 + MCALL 3,PUT + POPJ P, + +; HERE TO APPLY SUSSMAN FUNARGS + +APFUNARG: + + SKIPN C,E.FCN+1(TB) + JRST FUNERR + HRRZ D,(C) ; MUST BE AT LEAST 2 LONG + JUMPE D,FUNERR + GETYP 0,(D) ; CHECK FOR LIST + CAIE 0,TLIST + JRST FUNERR + HRRZ 0,(D) ; SHOULD BE END + JUMPN 0,FUNERR + GETYP 0,(C) ; 1ST MUST BE FCN + CAIE 0,TEXPR + JRST FUNERR + SKIPN C,1(C) + JRST NOBODY + PUSHJ P,APEXPF ; BIND THE ARGS AND AUX'S + HRRZ C,RE.FCN+1(TB) ; GET BODY OF FUNARG + MOVE B,1(C) ; GET FCN + MOVEM B,RE.FCN+1(TB) ; AND SAVE + HRRZ C,(C) ; CDR FUNARG BODY + MOVE C,1(C) + MOVSI 0,TLIST ; SET UP TYPE + MOVE PVP,PVSTOR+1 + MOVEM 0,CSTO(PVP) ; FOR INTS TO WIN + +FUNLP: INTGO + JUMPE C,DOF ; RUN IT + GETYP 0,(C) + CAIE 0,TLIST ; BETTER BE LIST + JRST FUNERR + PUSH TP,$TLIST + PUSH TP,C + PUSHJ P,NEXTDC ; GET POSSIBILITY + JRST FUNERR ; LOSER + CAIE A,2 + JRST FUNERR + HRRZ B,(B) ; GET TO VALUE + MOVE C,(TP) + SUB TP,[2,,2] + PUSH TP,BNDA + PUSH TP,E + HLLZ A,(B) ; GET VAL + MOVE B,1(B) + JSP E,CHKAB ; HACK DEFER + PUSHJ P,PSHAB4 ; PUT VAL IN + HRRZ C,(C) ; CDR + JUMPN C,FUNLP + +; HERE TO RUN FUNARG + +DOF: MOVE PVP,PVSTOR+1 + SETZM CSTO(PVP) ; DONT CONFUSE GC + PUSHJ P,SPECBIND ; BIND 'EM UP + JRST RUNFUN + + + +; HERE TO DO MACROS + +APMACR: HRRZ E,OTBSAV(TB) + HRRZ D,PCSAV(E) ; SEE WHERE FROM + CAIE D,EFCALL+1 ; 1STEP + JRST .+3 + HRRZ E,OTBSAV(E) + HRRZ D,PCSAV(E) + CAIN D,AEVAL3 ; SKIP IF NOT RIGHT + JRST APMAC1 + SKIPG E.ARG+1(TB) ; SKIP IF REAL FORM EXISTS + JRST BADMAC + MOVE A,E.FRM(TB) + MOVE B,E.FRM+1(TB) + SUB TP,[E.EXTR+2,,E.EXTR+2] ; FLUSH JUNK + PUSH TP,A + PUSH TP,B + MCALL 1,EXPAND ; EXPAND THE MACRO + PUSH TP,A + PUSH TP,B + MCALL 1,EVAL ; EVAL THE RESULT + POPJ P, + +APMAC1: MOVE C,E.FCN+1(TB) ; GET MACRO BODY + GETYP A,(C) + MOVE B,1(C) + MOVSI A,(A) + JSP E,CHKAB ; FIX DEFERS + MOVEM A,E.FCN(TB) + MOVEM B,E.FCN+1(TB) + JRST APLDIX + +; HERE TO APPLY EXPRS (FUNCTIONS) + +APEXPR: PUSHJ P,APEXP ; BIND ARGS AND AUX'S +RUNFUN: HRRZ A,RE.FCN(TB) ; AMOUNT OF FCN TO SKIP + MOVEI C,RE.FCN+1(TB) ; POINT TO FCN + HRRZ C,(C) ; SKIP SOMETHING + SOJGE A,.-1 ; UNTIL 1ST FORM + MOVEM C,RE.FCN+1(TB) ; AND STORE + JRST DOPROG ; GO RUN PROGRAM + +APEXP: SKIPN C,E.FCN+1(TB) ; CHECK FRO BODY + JRST NOBODY +APEXPF: PUSH P,[0] ; COUNT INIT CRAP + ADD TP,[XP.TMP,,XP.TMP] ; SLOTS FOR HACKING + SKIPL TP + PUSHJ P,TPOVFL + SETZM 1-XP.TMP(TP) ; ZERO OUT + MOVEI A,-XP.TMP+2(TP) + HRLI A,-1(A) + BLT A,(TP) ; ZERO SLOTS + SKIPG E.ARG+1(TB) + AOS E.CNT(TB) ; INDICATES IF MUST EVAL ARGS + MOVSI A,400000 ; MAKE E.ARG BE NEG FOR SAFE @ING + IORM A,E.ARG+1(TB) + PUSHJ P,CARATC ; SEE IF HEWITT ATOM EXISTS + JRST APEXP1 ; NO, GO LOOK FOR ARGLIST + MOVEM E,E.HEW+1(TB) ; SAVE ATOM + MOVSM 0,E.HEW(TB) ; AND TYPE + AOS (P) ; COUNT HEWITT ATOM +APEXP1: GETYP 0,(C) ; LOOK AT NEXT THING + CAIE 0,TLIST ; BETTER BE LIST!!! + JRST MPD.0 ; LOSE + MOVE B,1(C) ; GET LIST + MOVEM B,E.ARGL+1(TB) ; SAVE + MOVSM 0,E.ARGL(TB) ; WITH TYPE + HRRZ C,(C) ; CDR THE FCN + JUMPE C,NOBODY ; BODYLESS FCN + GETYP 0,(C) ; SEE IF DCL LIST SUPPLIED + CAIE 0,TDECL + JRST APEXP2 ; NO, START PROCESSING ARGS + AOS (P) ; COUNT DCL + MOVE B,1(C) + MOVEM B,E.DECL+1(TB) + MOVSM 0,E.DECL(TB) + HRRZ C,(C) ; CDR ON + JUMPE C,NOBODY + + ; CHECK FOR EXISTANCE OF EXTRA ARG + +APEXP2: POP P,A ; GET COUNT + HRRM A,E.FCN(TB) ; AND SAVE + SKIPN E.EXTR(TB) ; SKIP IF FUNNY EXTRA ARG EXISTS + JRST APEXP3 + MOVE 0,[SETZ EXTRGT] + EXCH 0,E.ARG+1(TB) + HRRM 0,E.ARG(TB) ; SAVE OLD GETTER AROUND + AOS E.CNT(TB) + +; FALL THROUGH + +; LOOK FOR "BIND" DECLARATION + +APEXP3: PUSHJ P,UNPROG ; UNASSIGN LPROG IF NEC +APXP3A: SKIPN A,E.ARGL+1(TB) ; GET ARGLIST + JRST APEXP4 ; NONE, VERIFY NONE WERE GIVEN + PUSHJ P,NXTDCL ; SEE IF A DECL IS THERE + JRST BNDRG ; NO, GO BIND NORMAL ARGS + HRRZ C,(A) ; CDR THE DCLS + CAME B,[ASCII /BIND/] + JRST CH.CAL ; GO LOOK FOR "CALL" + PUSHJ P,CARTMC ; MUST BE AN ATOM + MOVEM C,E.ARGL+1(TB) ; AND SAVE CDR'D ARGS + PUSHJ P,MAKENV ; GENERATE AN ENVIRONMENT + PUSHJ P,PSBND1 ; PUSH THE BINDING AND CHECK THE DCL + JRST APXP3A ; IN CASE <"BIND" B "BIND" C...... + + +; LOOK FOR "CALL" DCL + +CH.CAL: CAME B,[ASCII /CALL/] + JRST CHOPT ; TRY SOMETHING ELSE +; SKIPG E.ARG+1(TB) ; DONT SKIP IF CANT WIN + SKIPE E.CNT(TB) + JRST MPD.2 + PUSHJ P,CARTMC ; BETTER BE AN ATOM + MOVEM C,E.ARGL+1(TB) + MOVE A,E.FRM(TB) ; RETURN FORM + MOVE B,E.FRM+1(TB) + PUSHJ P,PSBND1 ; BIND AND CHECK + JRST APEXP5 + +; BIND NORMAL ARGS BY CALLING BNDEM1, RETURNS WHEN ALL DONE + +BNDRG: PUSHJ P,BNDEM1 ; GO BIND THEM UP + TRNN A,4 ; SKIP IF HIT A DCL + JRST APEXP4 ; NOT A DCL, MUST BE DONE + +; LOOK FOR "OPTIONAL" DECLARATION + +CHOPT: CAMN B,[] + JRST .+3 + CAME B,[+1] + JRST CHREST ; TRY TUPLE/ARGS + MOVEM C,E.ARGL+1(TB) ; SAVE RESTED ARGLIST + PUSHJ P,BNDEM2 ; DO ALL SUPPLIED OPTIONALS + TRNN A,4 ; SKIP IF NEW DCL READ + JRST APEXP4 + +; CHECK FOR "ARGS" DCL + +CHREST: CAME B,[ASCII /ARGS/] + JRST CHRST1 ; GO LOOK FOR "TUPLE" +; SKIPGE E.ARG+1(TB) ; SKIP IF LEGAL + SKIPE E.CNT(TB) + JRST MPD.3 + PUSHJ P,CARTMC ; GOBBLE ATOM + MOVEM C,E.ARGL+1(TB) ; SAVE CDR'D ARG + HRRZ B,@E.FRM+1(TB) ; GET ARG LIST + MOVSI A,TLIST ; GET TYPE + PUSHJ P,PSBND1 + JRST APEXP5 + +; HERE TO CHECK FOR "TUPLE" + +CHRST1: CAME B,[ASCII /TUPLE/] + JRST APXP10 + PUSHJ P,CARTMC ; GOBBLE ATOM + MOVEM C,E.ARGL+1(TB) + SETZB A,B + PUSHJ P,PSHBND ; SET UP BINDING + SETZM E.CNT+1(TB) ; ZERO ARG COUNTER + +TUPLP: PUSHJ P,@E.ARG+1(TB) ; GET AN ARG + JRST TUPDON ; FINIS + AOS E.CNT+1(TB) + PUSH TP,A + PUSH TP,B + JRST TUPLP + +TUPDON: PUSHJ P,MAKINF ; MAKE INFO CELL + PUSH TP,$TINFO ; FENCE POST TUPLE + PUSHJ P,TBTOTP + ADDI D,TM.OFF ; COMPENSATE FOR MOVEMENT + PUSH TP,D + MOVE C,E.CNT+1(TB) ; GET COUNT + ASH C,1 ; TO WORDS + HRRM C,-1(TP) ; INTO FENCE POST + MOVEI B,-TM.OFF-1(TP) ; SETUP ARG POINTER + SUBI B,(C) ; POINT TO BASE OF TUPLE + MOVNS C ; FOR AOBJN POINTER + HRLI B,(C) ; GOOD ARGS POINTER + MOVEM A,TM.OFF-4(B) ; STORE + MOVEM B,TM.OFF-3(B) + + +; CHECK FOR VALID ENDING TO ARGS + +APEXP5: PUSHJ P,NEXTD ; READ NEXT THING IN ARGLIST + JRST APEXP8 ; DONE + TRNN A,4 ; SKIP IF DCL + JRST MPD.4 ; LOSER +APEXP7: MOVSI A,-NWINS ; CHECK FOR A WINNER + CAME B,WINRS(A) + AOBJN A,.-1 + JUMPGE A,MPD.6 ; NOT A WINNER + +; HERE TO BLT THE WORLD DOWN ON TOP OF ALL THE USELESS TEMPS + +APEXP8: MOVE 0,E.HEW+1(TB) ; GET HEWITT ATOM + MOVE E,E.FCN(TB) ; SAVE COUNTER + MOVE C,E.FCN+1(TB) ; FCN + MOVE B,E.ARGL+1(TB) ; ARG LIST + MOVE D,E.DECL+1(TB) ; AND DCLS + MOVEI A,R.TMP(TB) ; SET UP BLT + HRLI A,TM.OFF(A) + BLT A,-TM.OFF(TP) ; BLLLLLLLLLLLLLT + SUB TP,[TM.OFF,,TM.OFF] ; FLUSH CRUFT + MOVEM E,RE.FCN(TB) + MOVEM C,RE.FCN+1(TB) + MOVEM B,RE.ARGL+1(TB) + MOVE E,TP + PUSH TP,$TATOM + PUSH TP,0 + PUSH TP,$TDECL + PUSH TP,D + GETYP A,-5(TP) ; TUPLE ON TOP? + CAIE A,TINFO ; SKIP IF YES + JRST APEXP9 + HRRZ A,-5(TP) ; GET SIZE + ADDI A,2 + HRLI A,(A) + SUB E,A ; POINT TO BINDINGS + SKIPE C,(TP) ; IF DCL + PUSHJ P,CHKDCL ; CHECK TYPE SPEC ON TUPLE +APEXP9: PUSHJ P,USPCBE ; DO ACTUAL BINDING + + MOVE E,-2(TP) ; RESTORE HEWITT ATOM + MOVE D,(TP) ; AND DCLS + SUB TP,[4,,4] + + JRST AUXBND ; GO BIND AUX'S + +; HERE TO VERIFY CHECK IF ANY ARGS LEFT + +APEXP4: PUSHJ P,@E.ARG+1(TB) + JRST APEXP8 ; WIN + JRST TMA ; TOO MANY ARGS + +APXP10: PUSH P,B + PUSHJ P,@E.ARG+1(TB) + JRST .+2 + JRST TMA + POP P,B + JRST APEXP7 + +; LIST OF POSSIBLE TERMINATING NAMES + +WINRS: +AS.ACT: ASCII /ACT/ +AS.NAM: ASCII /NAME/ +AS.AUX: ASCII /AUX/ +AS.EXT: ASCII /EXTRA/ +NWINS==.-WINRS + + +; HERE TO BIND AUX VARIABLES FOR PROGS AND FCNS + +AUXBND: PUSH P,E ; SAVE HEWITT ATOM ( WILL PUT ON MARKED STACK + ; WHEN NECESSARY) + PUSH P,D ; SAME WITH DCL LIST + PUSH P,[-1] ; FLAG SAYING WE ARE FCN + SKIPN C,RE.ARG+1(TB) ; GET ARG LIST + JRST AUXDON + GETYP 0,(C) ; GET TYPE + CAIE 0,TDEFER ; SKIP IF CHSTR + MOVMS (P) ; SAY WE ARE IN OPTIONALS + JRST AUXB1 + +PRGBND: PUSH P,E + PUSH P,D + PUSH P,[0] ; WE ARE IN AUXS + +AUXB1: HRRZ C,RE.ARG+1(TB) ; POINT TO ARGLIST + PUSHJ P,NEXTDC ; GET NEXT THING OFF OF ARG LIST + JRST AUXDON + TRNE A,4 ; SKIP IF SOME KIND OF ATOM + JRST TRYDCL ; COUDL BE DCL + TRNN A,1 ; SKIP IF QUOTED + JRST AUXB2 + SKIPN (P) ; SKIP IF QUOTED OK + JRST MPD.11 +AUXB2: PUSHJ P,PSHBND ; SET UP BINDING + PUSH TP,$TATOM ; SAVE HEWITT ATOM + PUSH TP,-1(P) + PUSH TP,$TDECL ; AND DECLS + PUSH TP,-2(P) + TRNN A,2 ; SKIP IF INIT VAL EXISTS + JRST AUXB3 ; NO, USE UNBOUND + +; EVALUATE EXPRESSION + + HRRZ C,(B) ; CDR ATOM OFF + +; CHECK FOR SPECIAL FORMS + + GETYP 0,(C) ; GET TYPE OF GOODIE + CAIE 0,TFORM ; SMELLS LIKE A FORM + JRST AUXB13 + HRRZ D,1(C) ; GET 1ST ELEMENT + GETYP 0,(D) ; AND ITS VAL + CAIE 0,TATOM ; FEELS LIKE THE RIGHT FORM + JRST AUXB13 + + MOVE 0,1(D) ; GET THE ATOM + CAME 0,IMQUOTE TUPLE + CAMN 0,MQUOTE ITUPLE + JRST DOTUPL ; SURE GLAD I DIDN'T STEP IN THAT FORM + + +AUXB13: PUSHJ P,FASTEV +AUXB14: MOVE E,TP +AUXB4: MOVEM A,-7(E) ; STORE VAL IN BINDING + MOVEM B,-6(E) + +; HERE TO CHECK AGAINST DECLARATIONS AND COMPLETE THE BINDING + +AUXB5: SUB E,[4,,4] ; POINT TO BINDING TOP + SKIPE C,-2(TP) ; POINT TO DECLARATINS + PUSHJ P,CHKDCL ; CHECK IT + PUSHJ P,USPCBE ; AND BIND UP + SKIPE C,RE.ARG+1(TB) ; CDR DCLS + HRRZ C,(C) ; IF ANY TO CDR + MOVEM C,RE.ARG+1(TB) + MOVE A,(TP) ; NOW PUT HEWITT ATOM AND DCL AWAY + MOVEM A,-2(P) + MOVE A,-2(TP) + MOVEM A,-1(P) + SUB TP,[4,,4] ; FLUSH SLOTS + JRST AUXB1 + + +AUXB3: MOVNI B,1 + MOVSI A,TUNBOU + JRST AUXB14 + + + +; HERE TO HANDLE "CALLS" TO TUPLE AND ITUPLE + +DOTUPL: SKIPE E,(P) ; SKIP IF IN AUX LIST + JRST TUPLE + PUSH TP,$TLIST ; SAVE THE MAGIC FORM + PUSH TP,D + CAME 0,IMQUOTE TUPLE + JRST DOITUP ; DO AN ITUPLE + +; FALL INTO A TUPLE PUSHING LOOP + +DOTUP1: HRRZ C,@(TP) ; CDR THE FORM + JUMPE C,ATUPDN ; FINISHED + MOVEM C,(TP) ; SAVE CDR'D RESULT + GETYP 0,(C) ; CHECK FOR SEGMENT + CAIN 0,TSEG + JRST DTPSEG ; GO PULL IT APART + PUSHJ P,FASTEV ; EVAL IT + PUSHJ P,CNTARG ; PUSH IT UP AND COUNT THEM + JRST DOTUP1 + +; HERE WHEN WE FINISH + +ATUPDN: SUB TP,[2,,2] ; FLUSH THE LIST + ASH E,1 ; E HAS # OF ARGS DOUBLE IT + MOVEI D,(TP) ; FIND BASE OF STACK AREA + SUBI D,(E) + MOVSI C,-3(D) ; PREPARE BLT POINTER + BLT C,C ; HEWITT ATOM AND DECL TO 0,A,B,C + +; NOW PREPEARE TO BLT TUPLE DOWN + + MOVEI D,-3(D) ; NEW DEST + HRLI D,4(D) ; SOURCE + BLT D,-4(TP) ; SLURP THEM DOWN + + HRLI E,TINFO ; SET UP FENCE POST + MOVEM E,-3(TP) ; AND STORE + PUSHJ P,TBTOTP ; GET OFFSET + ADDI D,3 ; FUDGE FOR NOT AT TOP OF STACK + MOVEM D,-2(TP) + MOVEM 0,-1(TP) ; RESTORE HEW ATOM AND DECLS + MOVEM A,(TP) + PUSH TP,B + PUSH TP,C + + PUSHJ P,MAKINF ; MAKE 1ST WORD OF FUNNYS + + HRRZ E,-5(TP) ; RESTORE WORDS OF TUPLE + HRROI B,-5(TP) ; POINT TO TOP OF TUPLE + SUBI B,(E) ; NOW BASE + TLC B,-1(E) ; FIX UP AOBJN PNTR + ADDI E,2 ; COPNESATE FOR FENCE PST + HRLI E,(E) + SUBM TP,E ; E POINT TO BINDING + JRST AUXB4 ; GO CLOBBER IT IN + + +; HERE TO HANDLE SEGMENTS IN THESE FUNNY FORMS + +DTPSEG: PUSH TP,$TFORM ; SAVE THE HACKER + PUSH TP,1(C) + MCALL 1,EVAL ; AND EVALUATE IT + MOVE D,B ; GET READY FOR A SEG LOOP + MOVEM A,DSTORE + PUSHJ P,TYPSEG ; TYPE AND CHECK IT + +DTPSG1: INTGO ; DONT BLOW YOUR STACK + PUSHJ P,NXTLM ; ELEMENT TO A AND B + JRST DTPSG2 ; DONE + PUSHJ P,CNTARG ; PUSH AND COUNT + JRST DTPSG1 + +DTPSG2: SETZM DSTORE + HRRZ E,-1(TP) ; GET COUNT IN CASE END + JRST DOTUP1 ; REST OF ARGS STILL TO DO + +; HERE TO HACK + +DOITUP: HRRZ C,@(TP) ; GET COUNT FILED + JUMPE C,TFA + MOVEM C,(TP) + PUSHJ P,FASTEV ; EVAL IT + GETYP 0,A + CAIE 0,TFIX + JRST WTY1TP + + JUMPL B,BADNUM + + HRRZ C,@(TP) ; GET EXP TO EVAL + MOVEI 0,0 ; DONT LOSE IN 1 ARG CASE + HRRZ 0,(C) ; VERIFY WINNAGE + JUMPN 0,TMA ; TOO MANY + + JUMPE B,DOIDON + PUSH P,B ; SAVE COUNT + PUSH P,B + JUMPE C,DOILOS + PUSHJ P,FASTEV ; EVAL IT ONCE + MOVEM A,-1(TP) + MOVEM B,(TP) + +DOILP: INTGO + PUSH TP,-1(TP) + PUSH TP,-1(TP) + MCALL 1,EVAL + PUSHJ P,CNTRG + SOSLE (P) + JRST DOILP + +DOIDO1: MOVE B,-1(P) ; RESTORE COUNT + SUB P,[2,,2] + +DOIDON: MOVEI E,(B) + JRST ATUPDN + +; FOR CASE OF NO EVALE + +DOILOS: SUB TP,[2,,2] +DOILLP: INTGO + PUSH TP,[0] + PUSH TP,[0] + SOSL (P) + JRST DOILLP + JRST DOIDO1 + +; ROUTINE TO PUSH NEXT TUPLE ELEMENT + +CNTARG: AOS E,-1(TP) ; KEEP ARG COUNT UP TO DATE IN E +CNTRG: EXCH A,-1(TP) ; STORE ELEM AND GET SAVED + EXCH B,(TP) + PUSH TP,A + PUSH TP,B + POPJ P, + + +; DUMMY TUPLE AND ITUPLE + +IMFUNCTION TUPLE,SUBR + + ENTRY + ERRUUO EQUOTE NOT-IN-AUX-LIST + +MFUNCTIO ITUPLE,SUBR + JRST TUPLE + + +; PROCESS A DCL IN THE AUX VAR LISTS + +TRYDCL: SKIPN (P) ; SKIP IF NOT IN AUX'S + JRST AUXB7 + CAME B,AS.AUX ; "AUX" ? + CAMN B,AS.EXT ; OR "EXTRA" + JRST AUXB9 ; YES + CAME B,[ASCII /TUPLE/] + JRST AUXB10 + PUSHJ P,MAKINF ; BUILD EMPTY TUPLE + MOVEI B,1(TP) + PUSH TP,$TINFO ; FENCE POST + PUSHJ P,TBTOTP + PUSH TP,D +AUXB6: HRRZ C,(C) ; CDR PAST DCL + MOVEM C,RE.ARG+1(TB) +AUXB8: PUSHJ P,CARTMC ; GET ATOM +AUXB12: PUSHJ P,PSHBND ; UP GOES THE BINDING + PUSH TP,$TATOM ; HIDE HEWITT ATOM AND DCL + PUSH TP,-1(P) + PUSH TP,$TDECL + PUSH TP,-2(P) + MOVE E,TP + JRST AUXB5 + +; CHECK FOR ARGS + +AUXB10: CAME B,[ASCII /ARGS/] + JRST AUXB7 + MOVEI B,0 ; NULL ARG LIST + MOVSI A,TLIST + JRST AUXB6 ; GO BIND + +AUXB9: SETZM (P) ; NOW READING AUX + HRRZ C,(C) + MOVEM C,RE.ARG+1(TB) + JRST AUXB1 + +; CHECK FOR NAME/ACT + +AUXB7: CAME B,AS.NAM + CAMN B,AS.ACT + JRST .+2 + JRST MPD.12 ; LOSER + HRRZ C,(C) ; CDR ON + HRRZ 0,(C) ; BETTER BE END + JUMPN 0,MPD.13 + PUSHJ P,CARTMC ; FORCE ATOM READ + SETZM RE.ARG+1(TB) +AUXB11: PUSHJ P,MAKACT ; MAKE ACTIVATION + JRST AUXB12 ; AND BIND IT + + +; DONE BIND HEWITT ATOM IF NECESARY + +AUXDON: SKIPN E,-2(P) + JRST AUXD1 + SETZM -2(P) + JRST AUXB11 + +; FINISHED, RETURN + +AUXD1: SUB P,[3,,3] + POPJ P, + + +; MAKE AN ACTIVATION OR ENVIRONMNENT + +MAKACT: MOVEI B,(TB) + MOVSI A,TACT +MAKAC1: MOVE PVP,PVSTOR+1 + HRRI A,PVLNT*2+1(PVP) ; POINT TO PROCESS + HLL B,OTBSAV(B) ; GET TIME + POPJ P, + +MAKENV: MOVSI A,TENV + HRRZ B,OTBSAV(TB) + JRST MAKAC1 + +; SEVERAL USEFUL LITTLE ROUTINES FOR HACKING THIS STUFF + +; CARAT/CARATC/CARATM/CARTMC ALL LOOK FOR THE NEXT ATOM + +CARAT: HRRZ C,E.ARGL+1(TB) ; PICK UP ARGLIST +CARATC: JUMPE C,CPOPJ ; FOUND + GETYP 0,(C) ; GET ITS TYPE + CAIE 0,TATOM +CPOPJ: POPJ P, ; RETURN, NOT ATOM + MOVE E,1(C) ; GET ATOM + HRRZ C,(C) ; CDR DCLS + JRST CPOPJ1 + +CARATM: HRRZ C,E.ARGL+1(TB) +CARTMC: PUSHJ P,CARATC + JRST MPD.7 ; REALLY LOSE + POPJ P, + + +; SUBROUTINES TO PUSH BINDINGS ETC. UP ON THE STACK + +PSBND1: PUSHJ P,PSHBND ; PUSH THEBINDING + JRST CHDCL ; NOW CHECK IT AGAINST DECLARATION + +PSHBND: SKIPGE SPCCHK ; SKIP IF NORMAL SPECIAL + PUSH TP,BNDA1 ; ATOM IN E + SKIPL SPCCHK ; SKIP IF NORMAL UNSPEC OR NO CHECK + PUSH TP,BNDA + PUSH TP,E ; PUSH IT +PSHAB4: PUSH TP,A + PUSH TP,B + PUSH TP,[0] + PUSH TP,[0] + POPJ P, + +; ROUTINE TO PUSH 4 0'S + +PSH4ZR: SETZB A,B + JRST PSHAB4 + + +; EXTRRA ARG GOBBLER + +EXTRGT: HRRZ A,E.ARG(TB) ; RESET SLOT + SETZM E.CNT(TB) + CAIE A,ARGCDR ; IF NOT ARGCDR + AOS E.CNT(TB) + TLO A,400000 ; SET FLAG + MOVEM A,E.ARG+1(TB) + MOVE A,E.EXTR(TB) ; RET ARG + MOVE B,E.EXTR+1(TB) + JRST CPOPJ1 + +; CHECK A/B FOR DEFER + +CHKAB: GETYP 0,A + CAIE 0,TDEFER ; SKIP IF DEFER + JRST (E) + MOVE A,(B) + MOVE B,1(B) ; GET REAL THING + JRST (E) +; IF DECLARATIONS EXIST, DO THEM + +CHDCL: MOVE E,TP +CHDCLE: SKIPN C,E.DECL+1(TB) + POPJ P, + JRST CHKDCL + +; ROUTINE TO READ NEXT THING FROM ARGLIST + +NEXTD: HRRZ C,E.ARGL+1(TB) ; GET ARG LIST +NEXTDC: MOVEI A,0 + JUMPE C,CPOPJ + PUSHJ P,CARATC ; TRY FOR AN ATOM + JRST NEXTD1 ; NO + JRST CPOPJ1 + +NEXTD1: CAIE 0,TFORM ; FORM? + JRST NXT.L ; COULD BE LIST + PUSHJ P,CHQT ; VERIFY 'ATOM + MOVEI A,1 + JRST CPOPJ1 + +NXT.L: CAIE 0,TLIST ; COULD BE (A ) OR ('A ) + JRST NXT.S ; BETTER BE A DCL + PUSHJ P,LNT.2 ; VERIFY LENGTH IS 2 + JRST MPD.8 + CAIE 0,TATOM ; TYPE OF 1ST RET IN 0 + JRST LST.QT ; MAY BE 'ATOM + MOVE E,1(B) ; GET ATOM + MOVEI A,2 + JRST CPOPJ1 +LST.QT: CAIE 0,TFORM ; FORM? + JRST MPD.9 ; LOSE + PUSH P,C + MOVEI C,(B) ; VERIFY 'ATOM + PUSHJ P,CHQT + MOVEI B,(C) ; POINT BACK TO LIST + POP P,C + MOVEI A,3 ; CODE + JRST CPOPJ1 + +NXT.S: MOVEI A,(C) ; LET NXTDCL FIND OUT + PUSHJ P,NXTDCL + JRST MPD.3 ; LOSER + MOVEI A,4 ; SET DCL READ FLAG + JRST CPOPJ1 + +; ROUTINE TO CHECK LENGTH OF LIST/FORM FOR BEING 2 + +LNT.2: HRRZ B,1(C) ; GET LIST/FORM + JUMPE B,CPOPJ + HRRZ B,(B) + JUMPE B,CPOPJ + HRRZ B,(B) ; BETTER END HERE + JUMPN B,CPOPJ + HRRZ B,1(C) ; LIST BACK + GETYP 0,(B) ; TYPE OF 1ST ELEMENT + JRST CPOPJ1 + +; ROUTINE TO VERIFY FORM IS 'ATOM AND RET ATOM + +CHQT: PUSHJ P,LNT.2 ; 1ST LENGTH CHECK + JRST MPD.5 + CAIE 0,TATOM + JRST MPD.5 + MOVE 0,1(B) + CAME 0,IMQUOTE QUOTE + JRST MPD.5 ; BETTER BE QUOTE + HRRZ E,(B) ; CDR + GETYP 0,(E) ; TYPE + CAIE 0,TATOM + JRST MPD.5 + MOVE E,1(E) ; GET QUOTED ATOM + POPJ P, + +; ARG BINDER FOR REGULAR ARGS AND OPTIONALS + +BNDEM1: PUSH P,[0] ; REGULAR FLAG + JRST .+2 +BNDEM2: PUSH P,[1] +BNDEM: PUSHJ P,NEXTD ; GET NEXT THING + JRST CCPOPJ ; END OF THINGS + TRNE A,4 ; CHECK FOR DCL + JRST BNDEM4 + TRNE A,2 ; SKIP IF NOT (ATM ..) OR ('ATM ...) + SKIPE (P) ; SKIP IF REG ARGS + JRST .+2 ; WINNER, GO ON + JRST MPD.6 ; LOSER + SKIPGE SPCCHK + PUSH TP,BNDA1 ; SAVE ATOM + SKIPL SPCCHK + PUSH TP,BNDA + PUSH TP,E +; SKIPGE E.ARG+1(TB) ; ALREADY EVAL'D ARG? + SKIPE E.CNT(TB) + JRST RGLAR0 + TRNN A,1 ; SKIP IF ARG QUOTED + JRST RGLARG + HRRZ D,@E.FRM+1(TB) ; GET AND CDR ARG + JUMPE D,TFACHK ; OH OH MAYBE TOO FEW ARGS + MOVEM D,E.FRM+1(TB) ; STORE WINNER + HLLZ A,(D) ; GET ARG + MOVE B,1(D) + JSP E,CHKAB ; HACK DEFER + JRST BNDEM3 ; AND GO ON + +RGLAR0: TRNE A,1 ; ATTEMPT TO QUOTE ALREADY EVAL'D ARG ? + JRST MPD ; YES, LOSE +RGLARG: PUSH P,A ; SAVE FLAGS + PUSHJ P,@E.ARG+1(TB) + JRST TFACH1 ; MAY GE TOO FEW + SUB P,[1,,1] +BNDEM3: HRRZ C,@E.ARGL+1(TB) ; CDR THHE ARGS + MOVEM C,E.ARGL+1(TB) + PUSHJ P,PSHAB4 ; PUSH VALUE AND SLOTS + PUSHJ P,CHDCL ; CHECK DCLS + JRST BNDEM ; AND BIND ON! + +; HERE WHEN ARGS RUN OUT, IF NOT OPTIONAL, GIVE TFA + +TFACH1: POP P,A +TFACHK: SUB TP,[2,,2] ; FLUSH ATOM + SKIPN (P) ; SKIP IF OPTIONALS + JRST TFA +CCPOPJ: SUB P,[1,,1] + POPJ P, + +BNDEM4: HRRZ C,@E.ARGL+1(TB) ; POINT TO REST OF ARGL + JRST CCPOPJ + + +; EVALUATE LISTS, VECTORS, UNIFROM VECTORS + +EVLIST: PUSH P,[-1] ;-1 -- THIS IS A LIST + JRST EVL1 ;GO TO HACKER + +EVECT: PUSH P,[0] ;0 -- THIS IS A GENERAL VECTOR + JRST EVL1 + +EUVEC: PUSH P,[1] ;1 -- THIS IS A UNIFORM VECTOR + +EVL1: PUSH P,[0] ;PUSH A COUNTER + GETYPF A,(AB) ;GET FULL TYPE + PUSH TP,A + PUSH TP,1(AB) ;AND VALUE + +EVL2: INTGO ;CHECK INTERRUPTS + SKIPN A,1(TB) ;ANYMORE + JRST EVL3 ;NO, QUIT + SKIPL -1(P) ;SKIP IF LIST + JUMPG A,EVL3 ;JUMP IF VECTOR EMPTY + GETYPF B,(A) ;GET FULL TYPE + SKIPGE C,-1(P) ;SKIP IF NOT LIST + HLLZS B ;CLOBBER CDR FIELD + JUMPG C,EVL7 ;HACK UNIFORM VECS +EVL8: PUSH P,B ;SAVE TYPE WORD ON P + CAMN B,$TSEG ;SEGMENT? + MOVSI B,TFORM ;FAKE OUT EVAL + PUSH TP,B ;PUSH TYPE + PUSH TP,1(A) ;AND VALUE + JSP E,CHKARG ; CHECK DEFER + MCALL 1,EVAL ;AND EVAL IT + POP P,C ;AND RESTORE REAL TYPE + CAMN C,$TSEG ;SEGMENT? + JRST DOSEG ;YES, HACK IT + AOS (P) ;COUNT ELEMENT + PUSH TP,A ;AND PUSH IT + PUSH TP,B +EVL6: SKIPGE A,-1(P) ;DONT SKIP IF LIST + HRRZ B,@1(TB) ;CDR IT + JUMPL A,ASTOTB ;AND STORE IT + MOVE B,1(TB) ;GET VECTOR POINTER + ADD B,AMNT(A) ;INCR BY APPROPRIATE AMOUNT +ASTOTB: MOVEM B,1(TB) ;AND STORE BACK + JRST EVL2 ;AND LOOP BACK + +AMNT: 2,,2 ;INCR FOR GENERAL VECTOR + 1,,1 ;SAME FOR UNIFORM VECTOR + +CHKARG: GETYP A,-1(TP) + CAIE A,TDEFER + JRST (E) + HRRZS (TP) ;MAKE SURE INDIRECT WINS + MOVE A,@(TP) + MOVEM A,-1(TP) ;CLOBBER IN TYPE SLOT + MOVE A,(TP) ;NOW GET POINTER + MOVE A,1(A) ;GET VALUE + MOVEM A,(TP) ;CLOBBER IN + JRST (E) + + + +EVL7: HLRE C,A ; FIND TYPE OF UVECTOR + SUBM A,C ;C POINTS TO DOPE WORD + GETYP B,(C) ;GET TYPE + MOVSI B,(B) ;TO LH NOW + SOJA A,EVL8 ;AND RETURN TO DO EVAL + +EVL3: SKIPL -1(P) ;SKIP IF LIST + JRST EVL4 ;EITHER VECTOR OR UVECTOR + + MOVEI B,0 ;GET A NIL +EVL9: MOVSI A,TLIST ;MAKE TYPE WIN +EVL5: SOSGE (P) ;COUNT DOWN + JRST EVL10 ;DONE, RETURN + PUSH TP,$TLIST ;SET TO CALL CONS + PUSH TP,B + MCALL 2,CONS + JRST EVL5 ;LOOP TIL DONE + + +EVL4: MOVEI B,EUVECT ;UNIFORM CASE + SKIPG -1(P) ;SKIP IF UNIFORM CASE + MOVEI B,EVECTO ;NO, GENERAL CASE + POP P,A ;GET COUNT + .ACALL A,(B) ;CALL CREATOR +EVL10: GETYPF A,(AB) ; USE SENT TYPE + JRST EFINIS + + +; PROCESS SEGMENTS FOR THESE HACKS + +DOSEG: PUSHJ P,TYPSEG ; FIND WHAT IS BEING SEGMENTED + JUMPE C,LSTSEG ; CHECK END SPLICE IF LIST + +SEG3: PUSHJ P,NXTELM ; GET THE NEXTE ELEMT + JRST SEG4 ; RETURN TO CALLER + AOS (P) ; COUNT + JRST SEG3 ; TRY AGAIN +SEG4: SETZM DSTORE + JRST EVL6 + +TYPSEG: PUSHJ P,TYPSGR + JRST ILLSEG + POPJ P, + +TYPSGR: MOVE E,A ; SAVE TYPE + GETYP A,A ; TYPE TO RH + PUSHJ P,SAT ;GET STORAGE TYPE + MOVE D,B ; GOODIE TO D + + MOVNI C,1 ; C <0 IF ILLEGAL + CAIN A,S2WORD ;LIST? + MOVEI C,0 + CAIN A,S2NWORD ;GENERAL VECTOR? + MOVEI C,1 + CAIN A,SNWORD ;UNIFORM VECTOR? + MOVEI C,2 + CAIN A,SCHSTR + MOVEI C,3 + CAIN A,SBYTE + MOVEI C,5 + CAIN A,SSTORE ;SPECIAL AFREE STORAGE ? + MOVEI C,4 ;TREAT LIKE A UVECTOR + CAIN A,SARGS ;ARGS TUPLE? + JRST SEGARG ;NO, ERROR + CAILE A,NUMSAT ; SKIP IF NOT TEMPLATE + JRST SEGTMP + MOVE A,PTYPS(C) + CAIN A,4 + MOVEI A,2 ; NOW TREAT LIKE A UVECTOR + HLL E,A +MSTOR1: JUMPL C,CPOPJ + +MDSTOR: MOVEM E,DSTORE + JRST CPOPJ1 + +SEGTMP: MOVEI C,4 + HRRI E,(A) + JRST MSTOR1 + +SEGARG: MOVSI A,TARGS + HRRI A,(E) + PUSH TP,A ;PREPARE TO CHECK ARGS + PUSH TP,D + MOVEI B,-1(TP) ;POINT TO SAVED COPY + PUSHJ P,CHARGS ;CHECK ARG POINTER + POP TP,D ;AND RESTORE WINNER + POP TP,E ;AND TYPE AND FALL INTO VECTOR CODE + MOVEI C,1 + JRST MSTOR1 + +LSTSEG: SKIPL -1(P) ;SKIP IF IN A LIST + JRST SEG3 ;ELSE JOIN COMMON CODE + HRRZ A,@1(TB) ;CHECK FOR END OF LIST + JUMPN A,SEG3 ;NO, JOIN COMMON CODE + SETZM DSTORE ;CLOBBER SAVED GOODIES + JRST EVL9 ;AND FINISH UP + +NXTELM: INTGO + PUSHJ P,NXTLM ; GOODIE TO A AND B + POPJ P, ; DONE + PUSH TP,A + PUSH TP,B + JRST CPOPJ1 +NXTLM: XCT TESTR(C) ; SKIP IF MORE IN SEGEMNT + POPJ P, + XCT TYPG(C) ; GET THE TYPE + XCT VALG(C) ; AND VALUE + JSP E,CHKAB ; CHECK DEFERRED + XCT INCR1(C) ; AND INCREMENT TO NEXT +CPOPJ1: AOS (P) ; SKIP RETURN + POPJ P, + +; TABLES FOR SEGMENT OPERATIONS (0->LIST, 1->VECTOR/ARGS, 2->UVEC, 3->STRING) + +PTYPS: TLIST,, + TVEC,, + TUVEC,, + TCHSTR,, + TSTORA,, + TBYTE,, + +TESTR: SKIPN D + SKIPL D + SKIPL D + PUSHJ P,CHRDON + PUSHJ P,TM1 + PUSHJ P,CHRDON + +TYPG: PUSHJ P,LISTYP + GETYPF A,(D) + PUSHJ P,UTYPE + MOVSI A,TCHRS + PUSHJ P,TM2 + MOVSI A,TFIX + +VALG: MOVE B,1(D) + MOVE B,1(D) + MOVE B,(D) + PUSHJ P,1CHGT + PUSHJ P,TM3 + PUSHJ P,1CHGT + +INCR1: HRRZ D,(D) + ADD D,[2,,2] + ADD D,[1,,1] + PUSHJ P,1CHINC + ADD D,[1,,] + PUSHJ P,1CHINC + +TM1: HRRZ A,DSTORE + SKIPE DSTORE + HRRZ A,DSTORE ; GET SAT + SUBI A,NUMSAT+1 + ADD A,TD.LNT+1 + EXCH C,D + XCT (A) + HLRZ 0,C ; GET AMNT RESTED + SUB B,0 + EXCH C,D + TRNE B,-1 + AOS (P) + POPJ P, + +TM3: +TM2: HRRZ 0,DSTORE + SKIPE DSTORE + HRRZ 0,DSTORE + PUSH P,C + PUSH P,D + PUSH P,E + MOVE B,D + MOVEI C,0 ; GET "1ST ELEMENT" + PUSHJ P,TMPLNT ; GET NTH IN A AND B + POP P,E + POP P,D + POP P,C + POPJ P, + +CHRDON: HRRZ B,DSTORE + SKIPE DSTORE + HRRZ B,DSTORE ; POIT TO DOPE WORD + JUMPE B,CHRFIN + AOS (P) +CHRFIN: POPJ P, + +LISTYP: GETYP A,(D) + MOVSI A,(A) + POPJ P, +1CHGT: MOVE B,D + ILDB B,B + POPJ P, + +1CHINC: IBP D + SKIPN DSTORE + JRST 1CHIN1 + SOS DSTORE + POPJ P, + +1CHIN1: SOS DSTORE + POPJ P, + +UTYPE: HLRE A,D + SUBM D,A + GETYP A,(A) + MOVSI A,(A) + POPJ P, + + +;COMPILER's CALL TO DOSEG +SEGMNT: PUSHJ P,TYPSEG +SEGLP1: SETZB A,B +SEGLOP: PUSHJ P,NXTELM + JRST SEGRET + AOS (P)-2 ; INCREMENT COMPILER'S COUNT + JRST SEGLOP + +SEGRET: SETZM DSTORE + POPJ P, + +SEGLST: PUSHJ P,TYPSEG + JUMPN C,SEGLS2 +SEGLS3: SETZM DSTORE + MOVSI A,TLIST +SEGLS1: SOSGE -2(P) ; START COUNT DOWN + POPJ P, + MOVEI E,(B) + POP TP,D + POP TP,C + PUSHJ P,ICONS + JRST SEGLS1 + +SEGLS2: PUSHJ P,NXTELM + JRST SEGLS4 + AOS -2(P) + JRST SEGLS2 + +SEGLS4: MOVEI B,0 + JRST SEGLS3 + + +;SPECBIND BINDS IDENTIFIERS. IT IS CALLED BY PUSHJ P,SPECBIND. +;SPECBIND IS PROVIDED WITH A CONTIGUOUS SET OF TRIPLETS ON TP. +;EACH TRIPLET IS AS FOLLOWS: +;THE FIRST ELEMENT IS THE IDENTIFIER TO BE BOUND, ITS TYPE WORD IS [TATOM,,-1], +;THE SECOND IS THE VALUE TO WHICH IT IS TO BE ASSIGNED, +;AND THE THIRD IS A PAIR OF ZEROES. + +BNDA1: TATOM,,-2 +BNDA: TATOM,,-1 +BNDV: TVEC,,-1 + +USPECBIND: + MOVE E,TP +USPCBE: PUSH P,$TUBIND + JRST .+3 + +SPECBIND: + MOVE E,TP ;GET THE POINTER TO TOP +SPECBE: PUSH P,$TBIND + ADD E,[1,,1] ;BUMP POINTER ONCE + SETZB 0,D ;CLEAR TEMPS + PUSH P,0 + MOVEI 0,(TB) ; FOR CHECKS + +BINDLP: MOVE A,-4(E) ; CHECK FOR VEC BIND + CAMN A,BNDV + JRST NONID + MOVE A,-6(E) ;GET TYPE + CAME A,BNDA1 ; FOR UNSPECIAL + CAMN A,BNDA ;NORMAL ID BIND? + CAILE 0,-6(E) ; MAKE SURE NOT GOING UNDER FRAME + JRST SPECBD + SUB E,[6,,6] ;MOVE PTR + SKIPE D ;LINK? + HRRM E,(D) ;YES -- LOBBER + SKIPN (P) ;UPDATED? + MOVEM E,(P) ;NO -- DO IT + + MOVE A,0(E) ;GET ATOM PTR + MOVE B,1(E) + PUSHJ P,SILOC ;GET LAST BINDING + MOVS A,OTBSAV (TB) ;GET TIME + HRL A,5(E) ; GET DECL POINTER + MOVEM A,4(E) ;CLOBBER IT AWAY + MOVE A,(E) ; SEE IF SPEC/UNSPEC + TRNN A,1 ; SKIP, ALWAYS SPEC + SKIPA A,-1(P) ; USE SUPPLIED + MOVSI A,TBIND + MOVEM A,(E) ;IDENTIFY AS BIND BLOCK + JUMPE B,SPEB10 + MOVE PVP,PVSTOR+1 + HRRZ C,SPBASE(PVP) ; CHECK FOR CROSS OF PROC + MOVEI A,(TP) + CAIL A,(B) ; LOSER + CAILE C,(B) ; SKIP IFF WINNER + MOVEI B,1 +SPEB10: MOVEM B,5(E) ;IN RESTORE CELLS + + MOVE C,1(E) ;GET ATOM PTR + SKIPE (C) + JUMPE B,.-4 + MOVEI A,(C) + MOVEI B,0 ; FOR SPCUNP + CAIL A,HIBOT ; SKIP IF IMPURE ATOM + PUSHJ P,SPCUNP + MOVE PVP,PVSTOR+1 + HRRZ A,BINDID+1(PVP) ;GET PROCESS NUMBER + HRLI A,TLOCI ;MAKE LOC PTR + MOVE B,E ;TO NEW VALUE + ADD B,[2,,2] + MOVEM A,(C) ;CLOBBER ITS VALUE + MOVEM B,1(C) ;CELL + MOVE D,E ;REMEMBER LINK + JRST BINDLP ;DO NEXT + +NONID: CAILE 0,-4(E) + JRST SPECBD + SUB E,[4,,4] + SKIPE D + HRRM E,(D) + SKIPN (P) + MOVEM E,(P) + + MOVE D,1(E) ;GET PTR TO VECTOR + MOVE C,(D) ;EXCHANGE TYPES + EXCH C,2(E) + MOVEM C,(D) + + MOVE C,1(D) ;EXCHANGE DATUMS + EXCH C,3(E) + MOVEM C,1(D) + + MOVEI A,TBVL + HRLM A,(E) ;IDENTIFY BIND BLOCK + MOVE D,E ;REMEMBER LINK + JRST BINDLP + +SPECBD: SKIPE D + MOVE SP,SPSTOR+1 + HRRM SP,(D) + SKIPE D,(P) + MOVEM D,SPSTOR+1 + SUB P,[2,,2] + POPJ P, + + +; HERE TO IMPURIFY THE ATOM + +SPCUNP: PUSH TP,$TSP + PUSH TP,E + PUSH TP,$TSP + PUSH TP,-1(P) ; LINK BACK IS AN SP + PUSH TP,$TSP + PUSH TP,B + CAIN B,1 + SETZM -1(TP) ; FIXUP SOME FUNNYNESS + MOVE B,C + PUSHJ P,IMPURIFY + MOVE 0,-2(TP) ; RESTORE LINK BACK POINTER + MOVEM 0,-1(P) + MOVE E,-4(TP) + MOVE C,B + MOVE B,(TP) + SUB TP,[6,,6] + MOVEI 0,(TB) + POPJ P, + +; ENTRY FROM COMPILER TO SET UP A BINDING + +IBIND: MOVE SP,SPSTOR+1 + SUBI E,-5(SP) ; CHANGE TO PDL POINTER + HRLI E,(E) + ADD E,SP + MOVEM C,-4(E) + MOVEM A,-3(E) + MOVEM B,-2(E) + HRLOI A,TATOM + MOVEM A,-5(E) + MOVSI A,TLIST + MOVEM A,-1(E) + MOVEM D,(E) + JRST SPECB1 ; NOW BIND IT + +; "FAST CALL TO SPECBIND" + + + +; Compiler's call to SPECBIND all atom bindings, no TBVLs etc. + +SPECBND: + MOVE E,TP ; POINT TO BINDING WITH E +SPECB1: PUSH P,[0] ; SLOTS OF INTEREST + PUSH P,[0] + SUBM M,-2(P) + +SPECB2: MOVEI 0,(TB) ; FOR FRAME CHECK + MOVE A,-5(E) ; LOOK AT FIRST THING + CAMN A,BNDA ; SKIP IF LOSER + CAILE 0,-5(E) ; SKIP IF REAL WINNER + JRST SPECB3 + + SUB E,[5,,5] ; POINT TO BINDING + SKIPE A,(P) ; LINK? + HRRM E,(A) ; YES DO IT + SKIPN -1(P) ; FIRST ONE? + MOVEM E,-1(P) ; THIS IS IT + + MOVE A,1(E) ; POINT TO ATOM + MOVE PVP,PVSTOR+1 + MOVE 0,BINDID+1(PVP) ; QUICK CHECK + HRLI 0,TLOCI + CAMN 0,(A) ; WINNERE? + JRST SPECB4 ; YES, GO ON + + PUSH P,B ; SAVE REST OF ACS + PUSH P,C + PUSH P,D + MOVE B,A ; FOR ILOC TO WORK + PUSHJ P,SILOC ; GO LOOK IT UP + JUMPE B,SPECB9 + MOVE PVP,PVSTOR+1 + HRRZ C,SPBASE+1(PVP) + MOVEI A,(TP) + CAIL A,(B) ; SKIP IF LOSER + CAILE C,(B) ; SKIP IF WINNER + MOVEI B,1 ; SAY NO BACK POINTER +SPECB9: MOVE C,1(E) ; POINT TO ATOM + SKIPE (C) ; IF GLOBALLY BOUND, MAKE SURE OK + JUMPE B,.-3 + MOVEI A,(C) ; PURE ATOM? + CAIGE A,HIBOT ; SKIP IF OK + JRST .+4 + PUSH P,-4(P) ; MAKE HAPPINESS + PUSHJ P,SPCUNP ; IMPURIFY + POP P,-5(P) + MOVE PVP,PVSTOR+1 + MOVE A,BINDID+1(PVP) + HRLI A,TLOCI + MOVEM A,(C) ; STOR POINTER INDICATOR + MOVE A,B + POP P,D + POP P,C + POP P,B + JRST SPECB5 + +SPECB4: MOVE A,1(A) ; GET LOCATIVE +SPECB5: EXCH A,5(E) ; CLOBBER INTO REBIND SLOT (GET DECL) + HLL A,OTBSAV(TB) ; TIME IT + MOVSM A,4(E) ; SAVE DECL AND TIME + MOVEI A,TBIND + HRLM A,(E) ; CHANGE TO A BINDING + MOVE A,1(E) ; POINT TO ATOM + MOVEM E,(P) ; REMEMBER THIS GUY + ADD E,[2,,2] ; POINT TO VAL CELL + MOVEM E,1(A) ; INTO ATOM SLOT + SUB E,[3,,3] ; POINT TO NEXT ONE + JRST SPECB2 + +SPECB3: SKIPE A,(P) + MOVE SP,SPSTOR+1 + HRRM SP,(A) ; LINK OLD STUFF + SKIPE A,-1(P) ; NEW SP? + MOVEM A,SPSTOR+1 + SUB P,[2,,2] + INTGO ; IN CASE BLEW STACK + SUBM M,(P) + POPJ P, + + +;SPECSTORE RESTORES THE BINDINGS SP TO THE ENVIRONMENT POINTER IN +;SPSAV (TB). IT IS CALLED BY PUSHJ P,SPECSTORE. + +SPECSTORE: + PUSH P,E + HRRZ E,SPSAV (TB) ;GET TARGET POINTER + PUSHJ P,STLOOP + POP P,E + MOVE SP,SPSAV(TB) ; GET NEW SP + MOVEM SP,SPSTOR+1 + POPJ P, + +STLOOP: MOVE SP,SPSTOR+1 + PUSH P,D + PUSH P,C + +STLOO1: CAIL E,(SP) ;ARE WE DONE? + JRST STLOO2 + HLRZ C,(SP) ;GET TYPE OF BIND + CAIN C,TUBIND + JRST .+3 + CAIE C,TBIND ;NORMAL IDENTIFIER? + JRST ISTORE ;NO -- SPECIAL HACK + + + MOVE C,1(SP) ;GET TOP ATOM + MOVSI 0,TLOCI ; MAYBE LOCI OR UNBOUND + SKIPL D,5(SP) + MOVSI 0,TUNBOU + MOVE PVP,PVSTOR+1 + HRR 0,BINDID+1(PVP) ;STORE SIGNATURE + SKIPN 5(SP) + MOVEI 0,0 ; TOTALLY UNBOUND IN ALL CASES + MOVEM 0,(C) ;CLOBBER INTO ATOM + MOVEM D,1(C) + SETZM 4(SP) +SPLP: HRRZ SP,(SP) ;FOLOW LINK + JUMPN SP,STLOO1 ;IF MORE + SKIPE E ; OK IF E=0 + FATAL SP OVERPOP +STLOO2: MOVEM SP,SPSTOR+1 + POP P,C + POP P,D + POPJ P, + +ISTORE: CAIE C,TBVL + JRST CHSKIP + MOVE C,1(SP) + MOVE D,2(SP) + MOVEM D,(C) + MOVE D,3(SP) + MOVEM D,1(C) + JRST SPLP + +CHSKIP: CAIN C,TSKIP + JRST SPLP + CAIE C,TUNWIN ; UNWIND HACK + FATAL BAD SP + HRRZ C,-2(P) ; WHERE FROM? + CAIE C,CHUNPC + JRST SPLP ; IGNORE + MOVEI E,(TP) ; FIXUP SP + SUBI E,(SP) + MOVSI E,(E) + HLL SP,TP + SUB SP,E + POP P,C + POP P,D + AOS (P) + POPJ P, + +; ENTRY FOR FUNNY COMPILER UNBIND (1) + +SSPECS: PUSH P,E + PUSH P,PVP + PUSH P,SP + MOVEI E,(TP) + PUSHJ P,STLOOP +SSPEC2: SUBI E,(SP) ; MAKE SP BE AOBJN + MOVSI E,(E) + HLL SP,TP + SUB SP,E + MOVEM SP,SPSTOR+1 + POP P,SP + POP P,PVP + POP P,E + POPJ P, + +; ENTRY FOR FUNNY COMPILER UNBIND (2) + +SSPEC1: PUSH P,E + PUSH P,PVP + PUSH P,SP + SUBI E,1 ; MAKE SURE GET CURRENT BINDING + PUSHJ P,STLOOP ; UNBIND + MOVEI E,(TP) ; NOW RESET SP + JRST SSPEC2 + +EFINIS: MOVE PVP,PVSTOR+1 + SKIPN C,1STEPR+1(PVP) ; SKIP NIF BEING ONE PROCEEDED + JRST FINIS + PUSH TP,$TATOM + PUSH TP,MQUOTE EVLOUT + PUSH TP,A ;SAVE EVAL RESULTS + PUSH TP,B + PUSH TP,[TINFO,,2] ; FENCE POST + PUSHJ P,TBTOTP + PUSH TP,D + PUSHJ P,MAKINF ; MAKE ARG BLOCK INFO + PUSH TP,A + MOVEI B,-6(TP) + HRLI B,-4 ; AOBJN TO ARGS BLOCK + PUSH TP,B + MOVE PVP,PVSTOR+1 + PUSH TP,1STEPR(PVP) + PUSH TP,1STEPR+1(PVP) ; PROCESS DOING THE 1STEPPING + MCALL 2,RESUME + MOVE A,-3(TP) ; GET BACK EVAL VALUE + MOVE B,-2(TP) + JRST FINIS + +1STEPI: PUSH TP,$TATOM + PUSH TP,MQUOTE EVLIN + PUSH TP,$TAB ; PUSH EVALS ARGGS + PUSH TP,AB + PUSHJ P,MAKINF ; TURN INTO ARGS BLOCK + MOVEM A,-1(TP) ; AND CLOBBER + PUSH TP,[TINFO,,2] ; FENCE POST 2D TUPLE + PUSHJ P,TBTOTP + PUSH TP,D + PUSHJ P,MAKINF ; TURN IT INTO ARGS BLOCK + PUSH TP,A + MOVEI B,-6(TP) ; SETUP TUPLE + HRLI B,-4 + PUSH TP,B + MOVE PVP,PVSTOR+1 + PUSH TP,1STEPR(PVP) + PUSH TP,1STEPR+1(PVP) + MCALL 2,RESUME ; START UP 1STEPERR + SUB TP,[6,,6] ; REMOVE CRUD + GETYP A,A ; GET 1STEPPERS TYPE + CAIE A,TDISMI ; IF DISMISS, STOP 1 STEPPING + JRST EVALON + +; HERE TO PUSH DOWN THE 1 STEP STATE AND RUN + + MOVE D,PVP + ADD D,[1STEPR,,1STEPR] ; POINT TO 1 STEP SLOT + PUSH TP,$TSP ; SAVE CURRENT SP + PUSH TP,SPSTOR+1 + PUSH TP,BNDV + PUSH TP,D ; BIND IT + PUSH TP,$TPVP + PUSH TP,[0] ; NO 1 STEPPER UNTIL POPJ + PUSHJ P,SPECBIND + +; NOW PUSH THE ARGS UP TO RE-CALL EVAL + + MOVEI A,0 +EFARGL: JUMPGE AB,EFCALL + PUSH TP,(AB) + PUSH TP,1(AB) + ADD AB,[2,,2] + AOJA A,EFARGL + +EFCALL: ACALL A,EVAL ; NOW DO THE EVAL + MOVE C,(TP) ; PRE-UNBIND + MOVE PVP,PVSTOR+1 + MOVEM C,1STEPR+1(PVP) + MOVE SP,-4(TP) ; AVOID THE UNBIND + MOVEM SP,SPSTOR+1 + SUB TP,[6,,6] ; AND FLUSH LOSERS + JRST EFINIS ; AND TRY TO FINISH UP + +MAKINF: HLRZ A,OTBSAV(TB) ; TIME IT + HRLI A,TARGS + POPJ P, + + +TBTOTP: MOVEI D,(TB) ; COMPUTE REL DIST FROM TP TO TB + SUBI D,(TP) + POPJ P, +; ARRIVE HERE TO COMPLETE A COMPILER GENERATED TUPLE +; D/ LENGTH OF THE TUPLE IN WORDS + +MAKTU2: MOVE D,-1(P) ; GET LENGTH + ASH D,1 + PUSHJ P,MAKTUP + PUSH TP,A + PUSH TP,B + POPJ P, + +MAKTUP: HRLI D,TINFO ; FIRST WORD OF FENCE POST + PUSH TP,D + HRROI B,(TP) ; TOP OF TUPLE + SUBI B,(D) + TLC B,-1(D) ; AOBJN IT + PUSHJ P,TBTOTP + PUSH TP,D + HLRZ A,OTBSAV(TB) ; TIME IT + HRLI A,TARGS + POPJ P, + +; HERE TO ALLOCATE SLOTS FOR COMPILER (AMNT IN A) + +TPALOC: SUBM M,(P) + ;Once here ==>ADDI A,1 Bug??? + HRLI A,(A) + ADD TP,A + PUSH P,A + SKIPL TP + PUSHJ P,TPOVFL ; IN CASE IT LOST + INTGO ; TAKE THE GC IF NEC + HRRI A,2(TP) + SUB A,(P) + SETZM -1(A) + HRLI A,-1(A) + BLT A,(TP) + SUB P,[1,,1] + JRST POPJM + + +NTPALO: PUSH TP,[0] + SOJG 0,.-1 + POPJ P, + + ;EVALUATES A IDENTIFIER -- GETS LOCAL VALUE IF THERE IS ONE, OTHERWISE GLOBAL. + +IMFUNCTION VALUE,SUBR + JSP E,CHKAT + PUSHJ P,IDVAL + JRST FINIS + +IDVAL: PUSHJ P,IDVAL1 + CAMN A,$TUNBOU + JRST UNBOU + POPJ P, + +IDVAL1: PUSH TP,A + PUSH TP,B ;SAVE ARG IN CASE NEED TO CHECK GLOBAL VALUE + PUSHJ P,ILVAL ;LOCAL VALUE FINDER + CAME A,$TUNBOUND ;IF NOT UNBOUND OR UNASSIGNED + JRST RIDVAL ;DONE - CLEAN UP AND RETURN + POP TP,B ;GET ARG BACK + POP TP,A + JRST IGVAL +RIDVAL: SUB TP,[2,,2] + POPJ P, + +;GETS THE LOCAL VALUE OF AN IDENTIFIER + +IMFUNCTION LVAL,SUBR + JSP E,CHKAT + PUSHJ P,AILVAL + CAME A,$TUNBOUND + JRST FINIS + JUMPN B,UNAS + JRST UNBOU + +; MAKE AN ATOM UNASSIGNED + +MFUNCTION UNASSIGN,SUBR + JSP E,CHKAT ; GET ATOM ARG + PUSHJ P,AILOC +UNASIT: CAMN A,$TUNBOU ; IF UNBOUND + JRST RETATM + MOVSI A,TUNBOU + MOVEM A,(B) + SETOM 1(B) ; MAKE SURE +RETATM: MOVE B,1(AB) + MOVE A,(AB) + JRST FINIS + +; UNASSIGN GLOBALLY + +MFUNCTION GUNASSIGN,SUBR + JSP E,CHKAT2 + PUSHJ P,IGLOC + CAMN A,$TUNBOU + JRST RETATM + MOVE B,1(AB) ; ATOM BACK + MOVEI 0,(B) + CAIL 0,HIBOT ; SKIP IF IMPURE + PUSHJ P,IMPURIFY ; YES, MAKE IT IMPURE + PUSHJ P,IGLOC ; RESTORE LOCATIVE + HRRZ 0,-2(B) ; SEE IF MANIFEST + GETYP A,(B) ; AND CURRENT TYPE + CAIN 0,-1 + CAIN A,TUNBOU + JRST UNASIT + SKIPE IGDECL + JRST UNASIT + MOVE D,B + JRST MANILO + +; GETS A LOCATIVE TO THE LOCAL VALUE OF AN IDENTIFIER. + +MFUNCTION LLOC,SUBR + JSP E,CHKAT + PUSHJ P,AILOC + CAMN A,$TUNBOUND + JRST UNBOU + MOVSI A,TLOCD + HRR A,2(B) + JRST FINIS + +;TESTS TO SEE IF AN IDENTIFIER IS LOCALLY BOUND + +MFUNCTION BOUND,SUBR,[BOUND?] + JSP E,CHKAT + PUSHJ P,AILVAL + CAMN A,$TUNBOUND + JUMPE B,IFALSE + JRST TRUTH + +;TESTS TO SEE IF AN IDENTIFIER IS LOCALLY ASSIGNED + +MFUNCTION ASSIGP,SUBR,[ASSIGNED?] + JSP E,CHKAT + PUSHJ P,AILVAL + CAME A,$TUNBOUND + JRST TRUTH +; JUMPE B,UNBOU + JRST IFALSE + +;GETS THE GLOBAL VALUE OF AN IDENTIFIER + +IMFUNCTION GVAL,SUBR + JSP E,CHKAT2 + PUSHJ P,IGVAL + CAMN A,$TUNBOUND + JRST UNAS + JRST FINIS + +;GETS A LOCATIVE TO THE GLOBAL VALUE OF AN IDENTIFIER + +MFUNCTION RGLOC,SUBR + + JRST GLOC + +MFUNCTION GLOC,SUBR + + JUMPGE AB,TFA + CAMGE AB,[-5,,] + JRST TMA + JSP E,CHKAT1 + MOVEI E,IGLOC + CAML AB,[-2,,] + JRST .+4 + GETYP 0,2(AB) + CAIE 0,TFALSE + MOVEI E,IIGLOC + PUSHJ P,(E) + CAMN A,$TUNBOUND + JRST UNAS + MOVSI A,TLOCD + HRRZ 0,FSAV(TB) + CAIE 0,GLOC + MOVSI A,TLOCR + CAIE 0,GLOC + SUB B,GLOTOP+1 + MOVE C,1(AB) ; GE ATOM + MOVEI 0,(C) + CAIGE 0,HIBOT ; SKIP IF PURE ATOM + JRST FINIS + +; MAKE ATOM AND VALUE IMPURE IF GETTING GLOC TO IT + + MOVE B,C ; ATOM TO B + PUSHJ P,IMPURIFY + JRST GLOC ; AND TRY AGAIN + +;TESTS TO SEE IF AN IDENTIFIER IS GLOBALLY ASSIGNED + +MFUNCTION GASSIG,SUBR,[GASSIGNED?] + JSP E,CHKAT2 + PUSHJ P,IGVAL + CAMN A,$TUNBOUND + JRST IFALSE + JRST TRUTH + +; TEST FOR GLOBALLY BOUND + +MFUNCTION GBOUND,SUBR,[GBOUND?] + + JSP E,CHKAT2 + PUSHJ P,IGLOC + JUMPE B,IFALSE + JRST TRUTH + + + +CHKAT2: ENTRY 1 +CHKAT1: GETYP A,(AB) + MOVSI A,(A) + CAME A,$TATOM + JRST NONATM + MOVE B,1(AB) + JRST (E) + +CHKAT: HLRE A,AB ; - # OF ARGS + ASH A,-1 ; TO ACTUAL WORDS + JUMPGE AB,TFA + MOVE C,SPSTOR+1 ; FOR BINDING LOOKUPS + AOJE A,CHKAT1 ; ONLY ONE ARG, NO ENVIRONMENT + AOJL A,TMA ; TOO MANY + GETYP A,2(AB) ; MAKE SURE OF TENV OR TFRAME + CAIE A,TFRAME + CAIN A,TENV + JRST CHKAT3 + CAIN A,TACT ; FOR PFISTERS LOSSAGE + JRST CHKAT3 + CAIE A,TPVP ; OR PROCESS + JRST WTYP2 + MOVE B,3(AB) ; GET PROCESS + MOVE C,SPSTOR+1 ; IN CASE ITS ME + CAME B,PVSTOR+1 ; SKIP IF DIFFERENT + MOVE C,SPSTO+1(B) ; GET ITS SP + JRST CHKAT1 +CHKAT3: MOVEI B,2(AB) ; POINT TO FRAME POINTER + PUSHJ P,CHFRM ; VALIDITY CHECK + MOVE B,3(AB) ; GET TB FROM FRAME + MOVE C,SPSAV(B) ; GET ENVIRONMENT POINTER + JRST CHKAT1 + + +; SILOC--CALLS ILOC IGNORING SPECIAL CHECKING + +SILOC: JFCL + +;ILOC RETURNS IN A AND B A LOCATIVE TO THE LOCAL VALUE OF THE IDENTIFIER +; PASSED TO IT IN A AND B. IF THE IDENTIFIER IS LOCALLY UNBOUND IT RETURNS +; $TUNBOUND IN A AND 0 IN B, IT IS CALLED BY PUSHJ P,ILOC. + +ILOC: MOVE C,SPSTOR+1 ; SETUP SEARCH START +AILOC: SKIPN (B) ; ANY KIND OF VALUE AT ALL? + JUMPN B,FUNPJ + MOVSI A,TLOCI ;MAKE A LOCATIVE TYPE CELL + PUSH P,E + PUSH P,D + MOVEI E,0 ; FLAG TO CLOBBER ATOM + JUMPE B,SCHSP ; IF LOOKING FOR SLOT, SEARCH NOW + CAME C,SPSTOR+1 ; ENVIRONMENT CHANGE? + JRST SCHSP ; YES, MUST SEARCH + MOVE PVP,PVSTOR+1 + HRR A,BINDID+1(PVP) ;FOR THE CURRENT PROCESS + CAME A,(B) ;IS THERE ONE IN THE VALUE CELL? + JRST SCHLP ;NO -- SEARCH THE LOCAL BINDINGS + MOVE B,1(B) ;YES -- GET LOCATIVE POINTER + MOVE C,PVP +ILCPJ: MOVE E,SPCCHK + TRNN E,1 ; SKIP IF DOING SPEC UNSPEC CHECK + JRST ILOCPJ + HRRZ E,-2(P) ; IF IGNORING, IGNORE + HRRZ E,-1(E) + CAIN E,SILOC + JRST ILOCPJ + HLRZ E,-2(B) + CAIE E,TUBIND + JRST ILOCPJ + CAMGE B,CURFCN+1(PVP) + JRST SCHLPX + MOVEI D,-2(B) + HRRZ SP,SPSTOR+1 + CAIG D,(SP) + CAMGE B,SPBASE+1(PVP) + JRST SCHLPX + MOVE C,PVSTOR+1 +ILOCPJ: POP P,D + POP P,E + POPJ P, ;FROM THE VALUE CELL + +SCHLPX: MOVEI E,1 + MOVE C,SPSTOR+1 + MOVE B,-1(B) + JRST SCHLP + + +SCHLP5: SETOM (P) + JRST SCHLP2 + +SCHLP: MOVEI D,(B) + CAIL D,HIBOT ; SKIP IF IMPURE ATOM +SCHSP: MOVEI E,1 ; DONT STORE LOCATIVE + + PUSH P,E ; PUSH SWITCH + MOVE E,PVSTOR+1 ; GET PROC +SCHLP1: JUMPE C,UNPJ ;IF NO MORE -- LOSE + CAMN B,1(C) ;ARE WE POINTING AT THE WINNER? + JRST SCHFND ;YES + GETYP D,(C) ; CHECK SKIP + CAIE D,TSKIP + JRST SCHLP2 + PUSH P,B ; CHECK DETOUR + MOVEI B,2(C) + PUSHJ P,CHFRAM ; NON-FATAL FRAME CHECKER + HRRZ E,2(C) ; CONS UP PROCESS + SUBI E,PVLNT*2+1 + HRLI E,-2*PVLNT + JUMPE B,SCHLP3 ; LOSER, FIX IT + POP P,B + MOVEI C,1(C) ; FOLLOW LOOKUP CHAIN +SCHLP2: HRRZ C,(C) ;FOLLOW LINK + JRST SCHLP1 + +SCHLP3: POP P,B + HRRZ SP,SPSTOR+1 + MOVEI C,(SP) ; *** NDR'S BUG *** + CAME E,PVSTOR+1 ; USE IF CURRENT PROCESS + HRRZ C,SPSTO+1(E) ; USE CURRENT SP FOR PROC + JRST SCHLP1 + +SCHFND: MOVE D,SPCCHK + TRNN D,1 ; SKIP IF DOING SPEC UNSPEC CHECK + JRST SCHFN1 + HRRZ D,-2(P) ; IF IGNORING, IGNORE + HRRZ D,-1(D) + CAIN D,SILOC + JRST ILOCPJ + HLRZ D,(C) + CAIE D,TUBIND + JRST SCHFN1 + HRRZ D,CURFCN+1(PVP) + CAIL D,(C) + JRST SCHLP5 + HRRZ SP,SPSTOR+1 + HRRZ D,SPBASE+1(PVP) + CAIL SP,(C) + CAIL D,(C) + JRST SCHLP5 + +SCHFN1: EXCH B,C ;SAVE THE ATOM PTR IN C + MOVEI B,2(B) ;MAKE UP THE LOCATIVE + SUB B,TPBASE+1(E) + HRLI B,(B) + ADD B,TPBASE+1(E) + EXCH C,E ; RET PROCESS IN C + POP P,D ; RESTORE SWITCH + + JUMPN D,ILOCPJ ; DONT CLOBBER ATOM + MOVEM A,(E) ;CLOBBER IT AWAY INTO THE + MOVE D,1(E) ; GET OLD POINTER + MOVEM B,1(E) ;ATOM'S VALUE CELL + JUMPE D,ILOCPJ ; IF POINTS TO GLOBAL OR OTHER PROCES + ; MAKE SURE BINDING SO INDICATES + MOVE D,B ; POINT TO BINDING + SKIPL E,3(D) ; GO TO FIRST ONE, JUST IN CASE + JRST .+3 + MOVE D,E + JRST .-3 ; LOOP THROUGH + MOVEI E,1 + MOVEM E,3(D) ; MAGIC INDICATION + JRST ILOCPJ + +UNPJ: SUB P,[1,,1] ; FLUSH CRUFT +UNPJ1: MOVE C,E ; RET PROCESS ANYWAY +UNPJ11: POP P,D + POP P,E +UNPOPJ: MOVSI A,TUNBOUND + MOVEI B,0 + POPJ P, + +FUNPJ: MOVE C,PVSTOR+1 + JRST UNPOPJ + +;IGLOC RETURNS IN A AND B A LOCATIVE TO THE GLOBAL VALUE OF THE +;IDENTIFIER PASSED TO IT IN A AND B. IF THE IDENTIFIER IS GLOBALLY +;UNBPOUND IT RETURNS $TUNBOUND IN A AND 0 IN B. IT IS CALLED BY PUSHJ P,IGLOC. + +IGLOC: MOVSI A,TLOCI ;DO WE HAVE A LOCATIVE TO + CAME A,(B) ;A PROCESS #0 VALUE? + JRST SCHGSP ;NO -- SEARCH + MOVE B,1(B) ;YES -- GET VALUE CELL + POPJ P, + +SCHGSP: SKIPN (B) + JRST UNPOPJ + MOVE D,GLOBSP+1 ;GET GLOBAL SP PTR + +SCHG1: JUMPGE D,UNPOPJ ;IF NO MORE, LEAVE + CAMN B,1(D) ;ARE WE FOUND? + JRST GLOCFOUND ;YES + ADD D,[4,,4] ;NO -- TRY NEXT + JRST SCHG1 + +GLOCFOUND: + EXCH B,D ;SAVE ATOM PTR + ADD B,[2,,2] ;MAKE LOCATIVE + MOVEI 0,(D) + CAIL 0,HIBOT + POPJ P, + MOVEM A,(D) ;CLOBBER IT AWAY + MOVEM B,1(D) + POPJ P, + +IIGLOC: PUSH TP,$TATOM + PUSH TP,B + PUSHJ P,IGLOC + MOVE C,(TP) + SUB TP,[2,,2] + GETYP 0,A + CAIE 0,TUNBOU + POPJ P, + PUSH TP,$TATOM + PUSH TP,C + MOVEI 0,(C) + MOVE B,C + CAIL 0,$TLOSE + PUSHJ P,IMPURI ; IMPURIFY THE POOR ATOM + PUSHJ P,BSETG ; MAKE A SLOT + SETOM 1(B) ; UNBOUNDIFY IT + MOVSI A,TLOCD + MOVSI 0,TUNBOU + MOVEM 0,(B) + SUB TP,[2,,2] + POPJ P, + + + +;ILVAL RETURNS IN A AND B THE LOCAL VALUE OF THE IDENTIFIER PASSED TO IT IN A AND B +;IF THE IDENTIFIER IS UNBOUND ITS VALUE IS $TUNBOUND IN A AND 0 IN B. IF +;IT IS UNASSIGNED ITS VALUE IS $TUNBOUND IN A AND -1 IN B. CALL - PUSHJ P,IVAL + +AILVAL: + PUSHJ P,AILOC ; USE SUPPLIED SP + JRST CHVAL +ILVAL: + PUSHJ P,ILOC ;GET LOCATIVE TO VALUE +CHVAL: CAMN A,$TUNBOUND ;BOUND + POPJ P, ;NO -- RETURN + MOVSI A,TLOCD ; GET GOOD TYPE + HRR A,2(B) ; SHOULD BE TIME OR 0 + PUSH P,0 + PUSHJ P,RMONC0 ; CHECK READ MONITOR + POP P,0 + MOVE A,(B) ;GET THE TYPE OF THE VALUE + MOVE B,1(B) ;GET DATUM + POPJ P, + +;IGVAL -- LIKE ILVAL EXCEPT FOR GLOBAL VALUES + +IGVAL: PUSHJ P,IGLOC + JRST CHVAL + + + +; COMPILERS INTERFACE TO LVAL/GVAL/SETG/SET + +CILVAL: MOVE PVP,PVSTOR+1 + MOVE 0,BINDID+1(PVP) ; CURRENT BIND + HRLI 0,TLOCI + CAME 0,(B) ; HURRAY FOR SPEED + JRST CILVA1 ; TOO BAD + MOVE C,1(B) ; POINTER + MOVE A,(C) ; VAL TYPE + TLNE A,.RDMON ; MONITORS? + JRST CILVA1 + GETYP 0,A + CAIN 0,TUNBOU + JRST CUNAS ; COMPILER ERROR + MOVE B,1(C) ; GOT VAL + MOVE 0,SPCCHK + TRNN 0,1 + POPJ P, + HLRZ 0,-2(C) ; SPECIAL CHECK + CAIE 0,TUBIND + POPJ P, ; RETURN + MOVE PVP,PVSTOR+1 + CAMGE C,CURFCN+1(PVP) + JRST CUNAS + POPJ P, + +CUNAS: +CILVA1: SUBM M,(P) ; FIX (P) + PUSH TP,$TATOM ; SAVE ATOM + PUSH TP,B + MCALL 1,LVAL ; GET ERROR/MONITOR + +POPJM: SUBM M,(P) ; REPAIR DAMAGE + POPJ P, + +; COMPILERS INTERFACE TO SET C/ ATOM A,B/ NEW VALUE + +CISET: MOVE PVP,PVSTOR+1 + MOVE 0,BINDID+1(PVP) ; CURRENT BINDING ENVIRONMENT + HRLI 0,TLOCI + CAME 0,(C) ; CAN WE WIN? + JRST CISET1 ; NO, MORE HAIR + MOVE D,1(C) ; POINT TO SLOT +CISET3: HLLZ 0,(D) ; MON CHECK + TLNE 0,.WRMON + JRST CISET4 ; YES, LOSE + TLZ 0,TYPMSK + IOR A,0 ; LEAVE MONITOR ON + MOVE 0,SPCCHK + TRNE 0,1 + JRST CISET5 ; SPEC/UNSPEC CHECK +CISET6: MOVEM A,(D) ; STORE + MOVEM B,1(D) + POPJ P, + +CISET5: HLRZ 0,-2(D) + CAIE 0,TUBIND + JRST CISET6 + MOVE PVP,PVSTOR+1 + CAMGE D,CURFCN+1(PVP) + JRST CISET4 + JRST CISET6 + +CISET1: SUBM M,(P) ; FIX ADDR + PUSH TP,$TATOM ; SAVE ATOM + PUSH TP,C + PUSH TP,A + PUSH TP,B + MOVE B,C ; GET ATOM + PUSHJ P,ILOC ; SEARCH + MOVE D,B ; POSSIBLE POINTER + GETYP E,A + MOVE 0,A + MOVE A,-1(TP) ; VAL BACK + MOVE B,(TP) + CAIE E,TUNBOU ; SKIP IF WIN + JRST CISET2 ; GO CLOBBER IT IN + MCALL 2,SET + JRST POPJM + +CISET2: MOVE C,-2(TP) ; ATOM BACK + SUBM M,(P) ; RESET (P) + SUB TP,[4,,4] + JRST CISET3 + +; HERE TO DO A MONITORED SET + +CISET4: SUBM M,(P) ; AGAIN FIX (P) + PUSH TP,$TATOM + PUSH TP,C + PUSH TP,A + PUSH TP,B + MCALL 2,SET + JRST POPJM + +; COMPILER LLOC + +CLLOC: MOVE PVP,PVSTOR+1 + MOVE 0,BINDID+1(PVP) ; GET CURRENT LOCATIVE + HRLI 0,TLOCI + CAME 0,(B) ; WIN? + JRST CLLOC1 + MOVE B,1(B) + MOVE 0,SPCCHK + TRNE 0,1 ; SKIP IF NOT CHECKING + JRST CLLOC9 +CLLOC3: MOVSI A,TLOCD + HRR A,2(B) ; GET BIND TIME + POPJ P, + +CLLOC1: SUBM M,(P) + PUSH TP,$TATOM + PUSH TP,B + PUSHJ P,ILOC ; LOOK IT UP + JUMPE B,CLLOC2 + SUB TP,[2,,2] +CLLOC4: SUBM M,(P) + JRST CLLOC3 + +CLLOC2: MCALL 1,LLOC + JRST CLLOC4 + +CLLOC9: HLRZ 0,-2(B) + CAIE 0,TUBIND + JRST CLLOC3 + MOVE PVP,PVSTOR+1 + CAMGE B,CURFCN+1(PVP) + JRST CLLOC2 + JRST CLLOC3 + +; COMPILER BOUND? + +CBOUND: SUBM M,(P) + PUSHJ P,ILOC + JUMPE B,PJFALS ; IF UNBOUND RET FALSE AND NO SSKIP +PJT1: SOS (P) + MOVSI A,TATOM + MOVE B,IMQUOTE T + JRST POPJM + +PJFALS: MOVEI B,0 + MOVSI A,TFALSE + JRST POPJM + +; COMPILER ASSIGNED? + +CASSQ: SUBM M,(P) + PUSHJ P,ILOC + JUMPE B,PJFALS + GETYP 0,(B) + CAIE 0,TUNBOU + JRST PJT1 + JRST PJFALS + + +; COMPILER GVAL B/ ATOM + +CIGVAL: MOVE 0,(B) ; GLOBAL VAL HERE? + CAME 0,$TLOCI ; TIME=0 ,TYPE=TLOCI => GLOB VAL + JRST CIGVA1 ; NO, GO LOOK + MOVE C,1(B) ; POINT TO SLOT + MOVE A,(C) ; GET TYPE + TLNE A,.RDMON + JRST CIGVA1 + GETYP 0,A ; CHECK FOR UNBOUND + CAIN 0,TUNBOU ; SKIP IF WINNER + JRST CGUNAS + MOVE B,1(C) + POPJ P, + +CGUNAS: +CIGVA1: SUBM M,(P) + PUSH TP,$TATOM + PUSH TP,B + .MCALL 1,GVAL ; GET ERROR/MONITOR + JRST POPJM + +; COMPILER INTERFACET TO SETG + +CSETG: MOVE 0,(C) ; GET V CELL + CAME 0,$TLOCI ; SKIP IF FAST + JRST CSETG1 + HRRZ D,1(C) ; POINT TO SLOT + MOVE 0,(D) ; OLD VAL +CSETG3: CAIG D,HIBOT ; SKIP IF PURE ATOM + TLNE 0,.WRMON ; MONITOR + JRST CSETG2 + MOVEM A,(D) + MOVEM B,1(D) + POPJ P, + +CSETG1: SUBM M,(P) ; FIX UP P + PUSH TP,$TATOM + PUSH TP,C + PUSH TP,A + PUSH TP,B + MOVE B,C + PUSHJ P,IGLOC ; FIND GLOB LOCATIVE + GETYP E,A + MOVE 0,A + MOVEI D,(B) ; SETUP TO RESTORE NEW VAL + MOVE A,-1(TP) + MOVE B,(TP) + CAIE E,TUNBOU + JRST CSETG4 + MCALL 2,SETG + JRST POPJM + +CSETG4: MOVE C,-2(TP) ; ATOM BACK + SUBM M,(P) ; RESET (P) + SUB TP,[4,,4] + JRST CSETG3 + +CSETG2: SUBM M,(P) + PUSH TP,$TATOM ; CAUSE A SETG MONITOR + PUSH TP,C + PUSH TP,A + PUSH TP,B + MCALL 2,SETG + JRST POPJM + +; COMPILER GLOC + +CGLOC: MOVE 0,(B) ; GET CURRENT GUY + CAME 0,$TLOCI ; WIN? + JRST CGLOC1 ; NOPE + HRRZ D,1(B) ; POINT TO SLOT + CAILE D,HIBOT ; PURE? + JRST CGLOC1 + MOVE A,$TLOCD + MOVE B,1(B) + POPJ P, + +CGLOC1: SUBM M,(P) + PUSH TP,$TATOM + PUSH TP,B + MCALL 1,GLOC + JRST POPJM + +; COMPILERS GASSIGNED? + +CGASSQ: MOVE 0,(B) + SUBM M,(P) + CAMN 0,$TLOCD + JRST PJT1 + PUSHJ P,IGLOC + JUMPE B,PJFALS + GETYP 0,(B) + CAIE 0,TUNBOU + JRST PJT1 + JRST PJFALS + +; COMPILERS GBOUND? + +CGBOUN: MOVE 0,(B) + SUBM M,(P) + CAMN 0,$TLOCD + JRST PJT1 + PUSHJ P,IGLOC + JUMPE B,PJFALS + JRST PJT1 + + +IMFUNCTION REP,FSUBR,[REPEAT] + JRST PROG +MFUNCTION BIND,FSUBR + JRST PROG +IMFUNCTION PROG,FSUBR + ENTRY 1 + GETYP A,(AB) ;GET ARG TYPE + CAIE A,TLIST ;IS IT A LIST? + JRST WRONGT ;WRONG TYPE + SKIPN C,1(AB) ;GET AND CHECK ARGUMENT + JRST TFA ;TOO FEW ARGS + SETZB E,D ; INIT HEWITT ATOM AND DECL + PUSHJ P,CARATC ; IS 1ST THING AN ATOM + JFCL + PUSHJ P,RSATY1 ; CDR AND GET TYPE + CAIE 0,TLIST ; MUST BE LIST + JRST MPD.13 + MOVE B,1(C) ; GET ARG LIST + PUSH TP,$TLIST + PUSH TP,C + PUSHJ P,RSATYP + CAIE 0,TDECL + JRST NOP.DC ; JUMP IF NO DCL + MOVE D,1(C) + MOVEM C,(TP) + PUSHJ P,RSATYP ; CDR ON +NOP.DC: PUSH TP,$TLIST + PUSH TP,B ; AND ARG LIST + PUSHJ P,PRGBND ; BIND AUX VARS + HRRZ E,FSAV(TB) + CAIE E,BIND + SKIPA E,IMQUOTE LPROG,[LPROG ]INTRUP + JRST .+3 + PUSHJ P,MAKACT ; MAKE ACTIVATION + PUSHJ P,PSHBND ; BIND AND CHECK + PUSHJ P,SPECBI ; NAD BIND IT + +; HERE TO RUN PROGS FUNCTIONS ETC. + +DOPROG: MOVEI A,REPROG + HRLI A,TDCLI ; FLAG AS FUNNY + MOVEM A,(TB) ; WHERE TO AGAIN TO + MOVE C,1(TB) + MOVEM C,3(TB) ; RESTART POINTER + JRST .+2 ; START BY SKIPPING DECL + +DOPRG1: PUSHJ P,FASTEV + HRRZ C,@1(TB) ;GET THE REST OF THE BODY +DOPRG2: MOVEM C,1(TB) + JUMPN C,DOPRG1 +ENDPROG: + HRRZ C,FSAV(TB) + CAIN C,REP +REPROG: SKIPN C,@3(TB) + JRST PFINIS + HRRZM C,1(TB) + INTGO + MOVE C,1(TB) + JRST DOPRG1 + + +PFINIS: GETYP 0,(TB) + CAIE 0,TDCLI ; DECL'D ? + JRST PFINI1 + HRRZ 0,(TB) ; SEE IF RSUBR + JUMPE 0,RSBVCK ; CHECK RSUBR VALUE + HRRZ C,3(TB) ; GET START OF FCN + GETYP 0,(C) ; CHECK FOR DECL + CAIE 0,TDECL + JRST PFINI1 ; NO, JUST RETURN + MOVE E,IMQUOTE VALUE + PUSHJ P,PSHBND ; BUILD FAKE BINDING + MOVE C,1(C) ; GET DECL LIST + MOVE E,TP + PUSHJ P,CHKDCL ; AND CHECK IT + MOVE A,-3(TP) ; GET VAL BAKC + MOVE B,-2(TP) + SUB TP,[6,,6] + +PFINI1: HRRZ C,FSAV(TB) + CAIE C,EVAL + JRST FINIS + JRST EFINIS + +RSATYP: HRRZ C,(C) +RSATY1: JUMPE C,TFA + GETYP 0,(C) + POPJ P, + +; HERE TO CHECK RSUBR VALUE + +RSBVCK: PUSH TP,A + PUSH TP,B + MOVE C,A + MOVE D,B + MOVE A,1(TB) ; GET DECL + MOVE B,1(A) + HLLZ A,(A) + PUSHJ P,TMATCH + JRST RSBVC1 + POP TP,B + POP TP,A + POPJ P, + +RSBVC1: MOVE C,1(TB) + POP TP,B + POP TP,D + MOVE A,IMQUOTE VALUE + JRST TYPMIS + + +MFUNCTION MRETUR,SUBR,[RETURN] + ENTRY + HLRE A,AB ; GET # OF ARGS + ASH A,-1 ; TO NUMBER + AOJL A,RET2 ; 2 OR MORE ARGS + PUSHJ P,PROGCH ;CHECK IN A PROG + PUSH TP,A + PUSH TP,B + MOVEI B,-1(TP) ; VERIFY IT +COMRET: PUSHJ P,CHFSWP + SKIPL C ; ARGS? + MOVEI C,0 ; REAL NONE + PUSHJ P,CHUNW + JUMPN A,CHFINI ; WINNER + MOVSI A,TATOM + MOVE B,IMQUOTE T + +; SEE IF MUST CHECK RETURNS TYPE + +CHFINI: GETYP 0,(TB) ; SPECIAL TYPE IF SO + CAIE 0,TDCLI + JRST FINIS ; NO, JUST FINIS + MOVEI 0,PFINIS ; CAUSE TO FALL INTO FUNCTION CODE + HRRM 0,PCSAV(TB) + JRST CONTIN + + +RET2: AOJL A,TMA + GETYP A,(AB)+2 + CAIE A,TACT ; AS FOR "EXIT" SHOULD BE ACTIVATION + JRST WTYP2 + MOVEI B,(AB)+2 ; ADDRESS OF FRAME POINTER + JRST COMRET + + + +MFUNCTION AGAIN,SUBR + ENTRY + HLRZ A,AB ;GET # OF ARGS + CAIN A,-2 ;1 ARG? + JRST NLCLA ;YES + JUMPN A,TMA ;0 ARGS? + PUSHJ P,PROGCH ;CHECK FOR IN A PROG + PUSH TP,A + PUSH TP,B + JRST AGAD +NLCLA: GETYP A,(AB) + CAIE A,TACT + JRST WTYP1 + PUSH TP,(AB) + PUSH TP,1(AB) +AGAD: MOVEI B,-1(TP) ; POINT TO FRAME + PUSHJ P,CHFSWP + HRRZ C,(B) ; GET RET POINT +GOJOIN: PUSH TP,$TFIX + PUSH TP,C + MOVEI C,-1(TP) + PUSHJ P,CHUNW ; RESTORE FRAME, UNWIND IF NEC. + HRRM B,PCSAV(TB) + HRRZ 0,FSAV(TB) ; CHECK FOR RSUBR + CAIGE 0,HIBOT + CAIGE 0,STOSTR + JRST CONTIN + HRRZ E,1(TB) + PUSH TP,$TFIX + PUSH TP,B + MOVEI C,-1(TP) + MOVEI B,(TB) + PUSHJ P,CHUNW1 + MOVE TP,1(TB) + MOVE SP,SPSTOR+1 + MOVEM SP,SPSAV(TB) + MOVEM TP,TPSAV(TB) + MOVE C,OTBSAV(TB) ; AND RESTORE P FROM FATHER + MOVE P,PSAV(C) + MOVEM P,PSAV(TB) + SKIPGE PCSAV(TB) + HRLI B,400000+M + MOVEM B,PCSAV(TB) + JRST CONTIN + +MFUNCTION GO,SUBR + ENTRY 1 + GETYP A,(AB) + CAIE A,TATOM + JRST NLCLGO + PUSHJ P,PROGCH ;CHECK FOR A PROG + PUSH TP,A ;SAVE + PUSH TP,B + MOVEI B,-1(TP) + PUSHJ P,CHFSWP + PUSH TP,$TATOM + PUSH TP,1(C) + PUSH TP,2(B) + PUSH TP,3(B) + MCALL 2,MEMQ ;DOES IT HAVE THIS TAG? + JUMPE B,NXTAG ;NO -- ERROR +FNDGO: EXCH B,(TP) ;SAVE PLACE TO GO + MOVSI D,TLIST + MOVEM D,-1(TP) + JRST GODON + +NLCLGO: CAIE A,TTAG ;CHECK TYPE + JRST WTYP1 + MOVE B,1(AB) + MOVEI B,2(B) ; POINT TO SLOT + PUSHJ P,CHFSWP + MOVE A,1(C) + GETYP 0,(A) ; SEE IF COMPILED + CAIE 0,TFIX + JRST GODON1 + MOVE C,1(A) + JRST GOJOIN + +GODON1: PUSH TP,(A) ;SAVE BODY + PUSH TP,1(A) +GODON: MOVEI C,0 + PUSHJ P,CHUNW ;GO BACK TO CORRECT FRAME + MOVE B,(TP) ;RESTORE ITERATION MARKER + MOVEM B,1(TB) + MOVSI A,TATOM + MOVE B,1(B) + JRST CONTIN + + + + +MFUNCTION TAG,SUBR + ENTRY + JUMPGE AB,TFA + HLRZ 0,AB + GETYP A,(AB) ;GET TYPE OF ARGUMENT + CAIE A,TFIX ; FIX ==> COMPILED + JRST ATOTAG + CAIE 0,-4 + JRST WNA + GETYP A,2(AB) + CAIE A,TACT + JRST WTYP2 + PUSH TP,(AB) + PUSH TP,1(AB) + PUSH TP,2(AB) + PUSH TP,3(AB) + JRST GENTV +ATOTAG: CAIE A,TATOM ;CHECK THAT IT IS AN ATOM + JRST WTYP1 + CAIE 0,-2 + JRST TMA + PUSHJ P,PROGCH ;CHECK PROG + PUSH TP,A ;SAVE VAL + PUSH TP,B + PUSH TP,$TATOM + PUSH TP,1(AB) + PUSH TP,2(B) + PUSH TP,3(B) + MCALL 2,MEMQ + JUMPE B,NXTAG ;IF NOT FOUND -- ERROR + EXCH A,-1(TP) ;SAVE PLACE + EXCH B,(TP) + HRLI A,TFRAME + PUSH TP,A + PUSH TP,B +GENTV: MOVEI A,2 + PUSHJ P,IEVECT + MOVSI A,TTAG + JRST FINIS + +PROGCH: MOVE B,IMQUOTE LPROG,[LPROG ]INTRUP + PUSHJ P,ILVAL ;GET VALUE + GETYP 0,A + CAIE 0,TACT + JRST NXPRG + POPJ P, + +; HERE TO UNASSIGN LPROG IF NEC + +UNPROG: MOVE B,IMQUOTE LPROG,[LPROG ]INTRUP + PUSHJ P,ILVAL + GETYP 0,A + CAIE 0,TACT ; SKIP IF MUST UNBIND + JRST UNMAP + MOVSI A,TUNBOU + MOVNI B,1 + MOVE E,IMQUOTE LPROG,[LPROG ]INTRUP + PUSHJ P,PSHBND +UNMAP: HRRZ 0,FSAV(TB) ; CHECK FOR FUNNY + CAIN 0,MAPPLY ; SKIP IF NOT + POPJ P, + MOVE B,IMQUOTE LMAP,[LMAP ]INTRUP + PUSHJ P,ILVAL + GETYP 0,A + CAIE 0,TFRAME + JRST UNSPEC + MOVSI A,TUNBOU + MOVNI B,1 + MOVE E,IMQUOTE LMAP,[LMAP ]INTRUP + PUSHJ P,PSHBND +UNSPEC: PUSH TP,BNDV + MOVE B,PVSTOR+1 + ADD B,[CURFCN,,CURFCN] + PUSH TP,B + PUSH TP,$TSP + MOVE E,SPSTOR+1 + ADD E,[3,,3] + PUSH TP,E + POPJ P, + +REPEAT 0,[ +MFUNCTION MEXIT,SUBR,[EXIT] + ENTRY 2 + GETYP A,(AB) + CAIE A,TACT + JRST WTYP1 + MOVEI B,(AB) + PUSHJ P,CHFSWP + ADD C,[2,,2] + PUSHJ P,CHUNW ;RESTORE FRAME + JRST CHFINI ; CHECK FOR WINNING VALUE +] + +MFUNCTION COND,FSUBR + ENTRY 1 + GETYP A,(AB) + CAIE A,TLIST + JRST WRONGT + PUSH TP,(AB) + PUSH TP,1(AB) ;CREATE UNNAMED TEMP + MOVEI B,0 ; SET TO FALSE IN CASE + +CLSLUP: SKIPN C,1(TB) ;IS THE CLAUSELIST NIL? + JRST IFALS1 ;YES -- RETURN NIL + GETYP A,(C) ;NO -- GET TYPE OF CAR + CAIE A,TLIST ;IS IT A LIST? + JRST BADCLS ; + MOVE A,1(C) ;YES -- GET CLAUSE + JUMPE A,BADCLS + GETYPF B,(A) + PUSH TP,B ; EVALUATION OF + HLLZS (TP) + PUSH TP,1(A) ;THE PREDICATE + JSP E,CHKARG + MCALL 1,EVAL + GETYP 0,A + CAIN 0,TFALSE + JRST NXTCLS ;FALSE TRY NEXT CLAUSE + MOVE C,1(TB) ;IF NOT, DO FIRST CLAUSE + MOVE C,1(C) + HRRZ C,(C) + JUMPE C,FINIS ;(UNLESS DONE WITH IT) + JRST DOPRG2 ;AS THOUGH IT WERE A PROG +NXTCLS: HRRZ C,@1(TB) ;SET THE CLAUSLIST + HRRZM C,1(TB) ;TO CDR OF THE CLAUSLIST + JRST CLSLUP + +IFALSE: + MOVEI B,0 +IFALS1: MOVSI A,TFALSE ;RETURN FALSE + JRST FINIS + + + +MFUNCTION UNWIND,FSUBR + + ENTRY 1 + + GETYP 0,(AB) ; CHECK THE ARGS FOR WINNAGE + SKIPN A,1(AB) ; NONE? + JRST TFA + HRRZ B,(A) ; CHECK FOR 2D + JUMPE B,TFA + HRRZ 0,(B) ; 3D? + JUMPN 0,TMA + +; Unbind LPROG and LMAPF so that nothing cute happens + + PUSHJ P,UNPROG + +; Push thing to do upon UNWINDing + + PUSH TP,$TLIST + PUSH TP,[0] + + MOVEI C,UNWIN1 + PUSHJ P,IUNWIN ; GOT TO INTERNAL SET UP + +; Now EVAL the first form + + MOVE A,1(AB) + HRRZ 0,(A) ; SAVE POINTER TO OTHER GUY + MOVEM 0,-12(TP) + MOVE B,1(A) + GETYP A,(A) + MOVSI A,(A) + JSP E,CHKAB ; DEFER? + PUSH TP,A + PUSH TP,B + MCALL 1,EVAL ; EVAL THE LOSER + + JRST FINIS + +; Now push slots to hold undo info on the way down + +IUNWIN: JUMPE M,NOUNRE + HLRE 0,M ; CHECK BOUNDS + SUBM M,0 + ANDI 0,-1 + CAIL C,(M) + CAML C,0 + JRST .+2 + SUBI C,(M) + +NOUNRE: PUSH TP,$TTB ; DESTINATION FRAME + PUSH TP,[0] + PUSH TP,[0] ; ARGS TO WHOEVER IS DOING IT + PUSH TP,[0] + +; Now bind UNWIND word + + PUSH TP,$TUNWIN ; FIRST WORD OF IT + MOVE SP,SPSTOR+1 + HRRM SP,(TP) ; CHAIN + MOVEM TP,SPSTOR+1 + PUSH TP,TB ; AND POINT TO HERE + PUSH TP,$TTP + PUSH TP,[0] + HRLI C,TPDL + PUSH TP,C + PUSH TP,P ; SAVE PDL ALSO + MOVEM TP,-2(TP) ; SAVE FOR LATER + POPJ P, + +; Do a non-local return with UNWIND checking + +CHUNW: HRRZ E,SPSAV(B) ; GET DESTINATION FRAME +CHUNW1: PUSH TP,(C) ; FINAL VAL + PUSH TP,1(C) + JUMPN C,.+3 ; WAS THERE REALLY ANYTHING + SETZM (TP) + SETZM -1(TP) + PUSHJ P,STLOOP ; UNBIND +CHUNPC: SKIPA ; WILL NOT SKIP UNLESS UNWIND FOUND + JRST GOTUND + MOVEI A,(TP) + SUBI A,(SP) + MOVSI A,(A) + HLL SP,TP + SUB SP,A + MOVEM SP,SPSTOR+1 + HRRI TB,(B) ; UPDATE TB + PUSHJ P,UNWFRMS + POP TP,B + POP TP,A + POPJ P, + +POPUNW: MOVE SP,SPSTOR+1 + HRRZ SP,(SP) + MOVEI E,(TP) + SUBI E,(SP) + MOVSI E,(E) + HLL SP,TP + SUB SP,E + MOVEM SP,SPSTOR+1 + POPJ P, + + +UNWFRM: JUMPE FRM,CPOPJ + MOVE B,FRM +UNWFR2: JUMPE B,UNWFR1 + CAMG B,TPSAV(TB) + JRST UNWFR1 + MOVE B,(B) + JRST UNWFR2 + +UNWFR1: MOVE FRM,B + POPJ P, + +; Here if an UNDO found + +GOTUND: MOVE TB,1(SP) ; GET FRAME OF UNDO + MOVE A,-1(TP) ; GET FUNNY ARG FOR PASS ON + MOVE C,(TP) + MOVE TP,3(SP) ; GET FUTURE TP + MOVEM C,-6(TP) ; SAVE ARG + MOVEM A,-7(TP) + MOVE C,(TP) ; SAVED P + SUB C,[1,,1] + MOVEM C,PSAV(TB) ; MAKE CONTIN WIN + MOVEM TP,TPSAV(TB) + MOVEM SP,SPSAV(TB) + HRRZ C,(P) ; PC OF CHUNW CALLER + HRRM C,-11(TP) ; SAVE ALSO AND GET WHERE TO GO PC + MOVEM B,-10(TP) ; AND DESTINATION FRAME + HRRZ C,-1(TP) ; WHERE TO UNWIND PC + HRRZ 0,FSAV(TB) ; RSUBR? + CAIGE 0,HIBOT + CAIGE 0,STOSTR + JRST .+3 + SKIPGE PCSAV(TB) + HRLI C,400000+M + MOVEM C,PCSAV(TB) + JRST CONTIN + +UNWIN1: MOVE B,-12(TP) ; POINT TO THING TO DO UNWINDING + GETYP A,(B) + MOVSI A,(A) + MOVE B,1(B) + JSP E,CHKAB + PUSH TP,A + PUSH TP,B + MCALL 1,EVAL +UNWIN2: MOVEI C,-7(TP) ; POINT TO SAVED RET VALS + MOVE B,-10(TP) + HRRZ E,-11(TP) + PUSH P,E + MOVE SP,SPSTOR+1 + HRRZ SP,(SP) ; UNBIND THIS GUY + MOVEI E,(TP) ; AND FIXUP SP + SUBI E,(SP) + MOVSI E,(E) + HLL SP,TP + SUB SP,E + MOVEM SP,SPSTOR+1 + JRST CHUNW ; ANY MORE TO UNWIND? + + +; CHFSWP - CHECK FRAMES VALIDITY AND SWAP PROCESS IF NECESSARY. +; CALLED BY ALL CONTROL FLOW +; ROUTINES (GO,RETURN,EXIT,AGAIN,ERRET...) + +CHFSWP: PUSHJ P,CHFRM ; CHECK FOR VALID FRAME + HRRZ D,(B) ; PROCESS VECTOR DOPE WD + HLRZ C,(D) ; LENGTH + SUBI D,-1(C) ; POINT TO TOP + MOVNS C ; NEGATE COUNT + HRLI D,2(C) ; BUILD PVP + MOVE E,PVSTOR+1 + MOVE C,AB + MOVE A,(B) ; GET FRAME + MOVE B,1(B) + CAMN E,D ; SKIP IF SWAP NEEDED + POPJ P, + PUSH TP,A ; SAVE FRAME + PUSH TP,B + MOVE B,D + PUSHJ P,PROCHK ; FIX UP PROCESS LISTS + MOVE A,PSTAT+1(B) ; GET STATE + CAIE A,RESMBL + JRST NOTRES + MOVE D,B ; PREPARE TO SWAP + POP P,0 ; RET ADDR + POP TP,B + POP TP,A + JSP C,SWAP ; SWAP IN + MOVE C,ABSTO+1(E) ; GET OLD ARRGS + MOVEI A,RUNING ; FIX STATES + MOVE PVP,PVSTOR+1 + MOVEM A,PSTAT+1(PVP) + MOVEI A,RESMBL + MOVEM A,PSTAT+1(E) + JRST @0 + +NOTRES: ERRUUO EQUOTE PROCESS-NOT-RESUMABLE + + +;SETG IS USED TO SET THE GLOBAL VALUE OF ITS FIRST ARGUMENT, +;AN IDENTIFIER, TO THE VALUE OF ITS SECOND ARGUMENT. ITS VALUE IS +; ITS SECOND ARGUMENT. + +IMFUNCTION SETG,SUBR + ENTRY 2 + GETYP A,(AB) ;GET TYPE OF FIRST ARGUMENT + CAIE A,TATOM ;CHECK THAT IT IS AN ATOM + JRST NONATM ;IF NOT -- ERROR + MOVE B,1(AB) ;GET POINTER TO ATOM + PUSH TP,$TATOM + PUSH TP,B + MOVEI 0,(B) + CAIL 0,HIBOT ; PURE ATOM? + PUSHJ P,IMPURIFY ; YES IMPURIFY + PUSHJ P,IGLOC ;GET LOCATIVE TO VALUE + CAME A,$TUNBOUND ;IF BOUND + JRST GOOST1 + SKIPN NOSETG ; ALLOWED? + JRST GOOSTG ; YES + PUSH TP,$TATOM + PUSH TP,EQUOTE CREATING-NEW-GVAL + PUSH TP,$TATOM + PUSH TP,1(AB) + PUSH TP,$TATOM + PUSH TP,EQUOTE NON-FALSE-TO-ALLOW + MCALL 3,ERROR + GETYP 0,A + CAIN 0,TFALSE + JRST FINIS +GOOSTG: PUSHJ P,BSETG ;IF NOT -- BIND IT +GOOST1: MOVE C,2(AB) ; GET PROPOSED VVAL + MOVE D,3(AB) + MOVSI A,TLOCD ; MAKE SURE MONCH WINS + PUSHJ P,MONCH0 ; WOULD YOU BELIEVE MONITORS!!!! + EXCH D,B ;SAVE PTR + MOVE A,C + HRRZ E,-2(D) ; POINT TO POSSIBLE GDECL (OR MAINIFEST) + JUMPE E,OKSETG ; NONE ,OK + CAIE E,-1 ; MANIFEST? + JRST SETGTY + GETYP 0,(D) ; IF UNBOUND, LET IT HAPPEN + SKIPN IGDECL + CAIN 0,TUNBOU + JRST OKSETG +MANILO: GETYP C,(D) + GETYP 0,2(AB) + CAIN 0,(C) + CAME B,1(D) + JRST .+2 + JRST OKSETG + PUSH TP,$TVEC + PUSH TP,D + MOVE B,IMQUOTE REDEFINE + PUSHJ P,ILVAL ; SEE IF REDEFINE OK + GETYP A,A + CAIE A,TUNBOU + CAIN A,TFALSE + JRST .+2 + JRST OKSTG + PUSH TP,$TATOM + PUSH TP,EQUOTE ATTEMPT-TO-CHANGE-MANIFEST-VARIABLE + PUSH TP,$TATOM + PUSH TP,1(AB) + MOVEI A,2 + JRST CALER + +SETGTY: PUSH TP,$TVEC + PUSH TP,D + MOVE C,A + MOVE D,B + GETYP A,(E) + MOVSI A,(A) + MOVE B,1(E) + JSP E,CHKAB + PUSHJ P,TMATCH + JRST TYPMI3 + +OKSTG: MOVE D,(TP) + MOVE A,2(AB) + MOVE B,3(AB) + +OKSETG: MOVEM A,(D) ;DEPOSIT INTO THE + MOVEM B,1(D) ;INDICATED VALUE CELL + JRST FINIS + +TYPMI3: MOVE C,(TP) + HRRZ C,-2(C) + MOVE D,2(AB) + MOVE B,3(AB) + MOVE 0,(AB) + MOVE A,1(AB) + JRST TYPMIS + +BSETG: HRRZ A,GLOBASE+1 + HRRZ B,GLOBSP+1 + SUB B,A + CAIL B,6 + JRST SETGIT + MOVEI B,0 ; MAKE SURE OF NO EMPTY SLOTS + PUSHJ P,IGLOC + CAMN A,$TUNBOU ; SKIP IF SLOT FOUND + JRST BSETG1 + MOVE C,(TP) ; GET ATOM + MOVEM C,-1(B) ; CLOBBER ATOM SLOT + HLLZS -2(B) ; CLOBBER OLD DECL + JRST BSETGX +; BSETG1: PUSH TP,GLOBASE ; MUST REALLY GROW STACK +; PUSH TP,GLOBASE+1 +; PUSH TP,$TFIX +; PUSH TP,[0] +; PUSH TP,$TFIX +; PUSH TP,[100] +; MCALL 3,GROW +BSETG1: PUSH P,0 + PUSH P,C + MOVE C,GLOBASE+1 + HLRE B,C + SUB C,B + MOVE B,GVLINC ; GROW BY INDICATED GVAL SLOTS + DPB B,[001100,,(C)] +; MOVEM A,GLOBASE + MOVE C,[6,,4] ; INDICATOR FOR AGC + PUSHJ P,AGC + MOVE B,GLOBASE+1 + MOVE 0,GVLINC ; ADJUST GLOBAL SPBASE + ASH 0,6 + SUB B,0 + HRLZS 0 + SUB B,0 + MOVEM B,GLOBASE+1 +; MOVEM B,GLOBASE+1 + POP P,0 + POP P,C +SETGIT: + MOVE B,GLOBSP+1 + SUB B,[4,,4] + MOVSI C,TGATOM + MOVEM C,(B) + MOVE C,(TP) + MOVEM C,1(B) + MOVEM B,GLOBSP+1 + ADD B,[2,,2] +BSETGX: MOVSI A,TLOCI + PUSHJ P,PATSCH ; FIXUP SCHLPAGE + MOVEM A,(C) + MOVEM B,1(C) + POPJ P, + +PATSCH: GETYP 0,(C) + CAIN 0,TLOCI + SKIPL D,1(C) + POPJ P, + +PATL: SKIPL E,3(D) ; SKIP IF NEXT EXISTS + JRST PATL1 + MOVE D,E + JRST PATL + +PATL1: MOVEI E,1 + MOVEM E,3(D) ; SAY GVAL ETC. EXISTS IF WE UNBIND + POPJ P, + + +IMFUNCTION DEFMAC,FSUBR + + ENTRY 1 + + PUSH P,. + JRST DFNE2 + +IMFUNCTION DFNE,FSUBR,[DEFINE] + + ENTRY 1 + + PUSH P,[0] +DFNE2: GETYP A,(AB) + CAIE A,TLIST + JRST WRONGT + SKIPN B,1(AB) ; GET ATOM + JRST TFA + GETYP A,(B) ; MAKE SURE ATOM + MOVSI A,(A) + PUSH TP,A + PUSH TP,1(B) + JSP E,CHKARG + MCALL 1,EVAL ; EVAL IT TO AN ATOM + CAME A,$TATOM + JRST NONATM + PUSH TP,A ; SAVE TWO COPIES + PUSH TP,B + PUSHJ P,IGVAL ; SEE IF A VALUE EXISTS + CAMN A,$TUNBOU ; SKIP IF A WINNER + JRST .+3 + PUSHJ P,ASKUSR ; CHECK WITH USER + JRST DFNE1 + PUSH TP,$TATOM + PUSH TP,-1(TP) + MOVE B,1(AB) + HRRZ B,(B) + MOVSI A,TEXPR + SKIPN (P) ; SKIP IF MACRO + JRST DFNE3 + MOVEI D,(B) ; READY TO CONS + MOVSI C,TEXPR + PUSHJ P,INCONS + MOVSI A,TMACRO +DFNE3: PUSH TP,A + PUSH TP,B + MCALL 2,SETG +DFNE1: POP TP,B ; RETURN ATOM + POP TP,A + JRST FINIS + + +ASKUSR: MOVE B,IMQUOTE REDEFINE + PUSHJ P,ILVAL ; SEE IF REDEFINE OK + GETYP A,A + CAIE A,TUNBOU + CAIN A,TFALSE + JRST ASKUS1 + JRST ASKUS2 +ASKUS1: PUSH TP,$TATOM + PUSH TP,-1(TP) + PUSH TP,$TATOM + PUSH TP,EQUOTE ALREADY-DEFINED-ERRET-NON-FALSE-TO-REDEFINE + MCALL 2,ERROR + GETYP 0,A + CAIE 0,TFALSE +ASKUS2: AOS (P) + MOVE B,1(AB) + POPJ P, + + + +;SET CLOBBERS THE LOCAL VALUE OF THE IDENTIFIER GIVEN BY ITS +;FIRST ARGUMENT TO THE SECOND ARG. ITS VALUE IS ITS SECOND ARGUMENT. + +IMFUNCTION SET,SUBR + HLRE D,AB ; 2 TIMES # OF ARGS TO D + ASH D,-1 ; - # OF ARGS + ADDI D,2 + JUMPG D,TFA ; NOT ENOUGH + MOVE B,PVSTOR+1 + MOVE C,SPSTOR+1 + JUMPE D,SET1 ; NO ENVIRONMENT + AOJL D,TMA ; TOO MANY + GETYP A,4(AB) ; CHECK ARG IS A FRAME OR PROCESS + CAIE A,TFRAME + CAIN A,TENV + JRST SET2 ; WINNING ENVIRONMENT/FRAME + CAIN A,TACT + JRST SET2 ; TO MAKE PFISTER HAPPY + CAIE A,TPVP + JRST WTYP2 + MOVE B,5(AB) ; GET PROCESS + MOVE C,SPSTO+1(B) + JRST SET1 +SET2: MOVEI B,4(AB) ; POINT TO FRAME + PUSHJ P,CHFRM ; CHECK IT OUT + MOVE B,5(AB) ; GET IT BACK + MOVE C,SPSAV(B) ; GET BINDING POINTER + HRRZ B,4(AB) ; POINT TO PROCESS + HLRZ A,(B) ; GET LENGTH + SUBI B,-1(A) ; POINT TO START THEREOF + HLL B,PVSTOR+1 ; GET -LNTRH, (ALL PROCESS VECS SAME LENGTH) +SET1: PUSH TP,$TPVP ; SAVE PROCESS + PUSH TP,B + PUSH TP,$TSP ; SAVE PATH POINTER + PUSH TP,C + GETYP A,(AB) ;GET TYPE OF FIRST + CAIE A,TATOM ;ARGUMENT -- + JRST WTYP1 ;BETTER BE AN ATOM + MOVE B,1(AB) ;GET PTR TO IT + MOVEI 0,(B) + CAIL 0,HIBOT + PUSHJ P,IMPURIFY + MOVE C,(TP) + PUSHJ P,AILOC ;GET LOCATIVE TO VALUE +GOTLOC: CAME A,$TUNBOUND ;IF BOUND + JRST GOOSE1 + SKIPN NOSET ; ALLOWED? + JRST GOOSET ; YES + PUSH TP,$TATOM + PUSH TP,EQUOTE CREATING-NEW-LVAL + PUSH TP,$TATOM + PUSH TP,1(AB) + PUSH TP,$TATOM + PUSH TP,EQUOTE NON-FALSE-TO-ALLOW + MCALL 3,ERROR + GETYP 0,A + CAIN 0,TFALSE + JRST FINIS +GOOSET: PUSHJ P,BSET ;IF NOT -- BIND IT +GOOSE1: MOVE C,2(AB) ; GET PROPOSED VVAL + MOVE C,2(AB) ; GET NEW VAL + MOVE D,3(AB) + MOVSI A,TLOCD ; FOR MONCH + HRR A,2(B) + PUSHJ P,MONCH0 ; HURRAY FOR MONITORS!!!!! + MOVE E,B + HLRZ A,2(E) ; GET DECLS + JUMPE A,SET3 ; NONE, GO + PUSH TP,$TSP + PUSH TP,E + MOVE B,1(A) + HLLZ A,(A) ; GET PATTERN + PUSHJ P,TMATCH ; MATCH TMEM + JRST TYPMI2 ; LOSES + MOVE E,(TP) + SUB TP,[2,,2] + MOVE C,2(AB) + MOVE D,3(AB) +SET3: MOVEM C,(E) ;CLOBBER IDENTIFIER + MOVEM D,1(E) + MOVE A,C + MOVE B,D + MOVE C,-2(TP) ; GET PROC + HRRZ C,BINDID+1(C) + HRLI C,TLOCI + +; HERE WE NOTE THAT EFFICIENCY CAN SOMETIMES GET IN THE WAY OF CORRECTNESS +; BY SETTING THE SHALLOW BINDING WE MANAGE TO CLOBBER THE TOP LEVEL LVAL +; EVEN IF WE ARE SETTING WITH RESPECT TO A DIFFERENT FRAME. TO CORRECT +; THIS GLITCH THIS ACTIVITY WILL ONLY TAKE PLACE IF THE ATOM ALREADY POINTS +; TO A BINDING + + MOVE D,1(AB) + SKIPE (D) + JRST NSHALL + MOVEM C,(D) + MOVEM E,1(D) +NSHALL: SUB TP,[4,,4] + JRST FINIS +BSET: + MOVE PVP,PVSTOR+1 + CAMN PVP,-2(TP) ; SKIP IF PROC DIFFERS + MOVEM C,-2(TP) ; ELSE USE RESULT FROM LOC SEARCH + MOVE B,-2(TP) ; GET PROCESS + HRRZ A,TPBASE+1(B) ;GET ACTUAL STACK BASE + HRRZ B,SPBASE+1(B) ;AND FIRST BINDING + SUB B,A ;ARE THERE 6 + CAIL B,6 ;CELLS AVAILABLE? + JRST SETIT ;YES + MOVE C,(TP) ; GET POINTER BACK + MOVEI B,0 ; LOOK FOR EMPTY SLOT + PUSHJ P,AILOC + CAMN A,$TUNBOUND ; SKIP IF FOUND + JRST BSET1 + MOVE E,1(AB) ; GET ATOM + MOVEM E,-1(B) ; AND STORE + JRST BSET2 +BSET1: MOVE B,-2(TP) ; GET PROCESS +; PUSH TP,TPBASE(B) ;NO -- GROW THE TP +; PUSH TP,TPBASE+1(B) ;AT THE BASE END +; PUSH TP,$TFIX +; PUSH TP,[0] +; PUSH TP,$TFIX +; PUSH TP,[100] +; MCALL 3,GROW +; MOVE C,-2(TP) ; GET PROCESS +; MOVEM A,TPBASE(C) ;SAVE RESULT + PUSH P,0 ; MANUALLY GROW VECTOR + PUSH P,C + MOVE C,TPBASE+1(B) + HLRE B,C + SUB C,B + MOVEI C,1(C) + CAME C,TPGROW + ADDI C,PDLBUF + MOVE D,LVLINC + DPB D,[001100,,-1(C)] + MOVE C,[5,,3] ; SET UP INDICATORS FOR AGC + PUSHJ P,AGC + MOVE PVP,PVSTOR+1 + MOVE B,TPBASE+1(PVP) ; MODIFY POINTER + MOVE 0,LVLINC ; ADJUST SPBASE POINTER + ASH 0,6 + SUB B,0 + HRLZS 0 + SUB B,0 + MOVEM B,TPBASE+1(PVP) + POP P,C + POP P,0 +; MOVEM B,TPBASE+1(C) +SETIT: MOVE C,-2(TP) ; GET PROCESS + MOVE B,SPBASE+1(C) + MOVEI A,-6(B) ;MAKE UP BINDING + HRRM A,(B) ;LINK PREVIOUS BIND BLOCK + MOVSI A,TBIND + MOVEM A,-6(B) + MOVE A,1(AB) + MOVEM A,-5(B) + SUB B,[6,,6] + MOVEM B,SPBASE+1(C) + ADD B,[2,,2] +BSET2: MOVE C,-2(TP) ; GET PROC + MOVSI A,TLOCI + HRR A,BINDID+1(C) + HLRZ D,OTBSAV(TB) ; TIME IT + MOVEM D,2(B) ; AND FIX IT + POPJ P, + +; HERE TO ELABORATE ON TYPE MISMATCH + +TYPMI2: MOVE C,(TP) ; FIND DECLS + HLRZ C,2(C) + MOVE D,2(AB) + MOVE B,3(AB) + MOVE 0,(AB) ; GET ATOM + MOVE A,1(AB) + JRST TYPMIS + + + +MFUNCTION NOT,SUBR + ENTRY 1 + GETYP A,(AB) ; GET TYPE + CAIE A,TFALSE ;IS IT FALSE? + JRST IFALSE ;NO -- RETURN FALSE + +TRUTH: + MOVSI A,TATOM ;RETURN T (VERITAS) + MOVE B,IMQUOTE T + JRST FINIS + +IMFUNCTION OR,FSUBR + + PUSH P,[0] + JRST ANDOR + +MFUNCTION ANDA,FSUBR,AND + + PUSH P,[1] +ANDOR: ENTRY 1 + GETYP A,(AB) + CAIE A,TLIST + JRST WRONGT ;IF ARG DOESN'T CHECK OUT + MOVE E,(P) + SKIPN C,1(AB) ;IF NIL + JRST TF(E) ;RETURN TRUTH + PUSH TP,$TLIST ;CREATE UNNAMED TEMP + PUSH TP,C +ANDLP: + MOVE E,(P) + JUMPE C,TFI(E) ;ANY MORE ARGS? + MOVEM C,1(TB) ;STORE CRUFT + GETYP A,(C) + MOVSI A,(A) + PUSH TP,A + PUSH TP,1(C) ;ARGUMENT + JSP E,CHKARG + MCALL 1,EVAL + GETYP 0,A + MOVE E,(P) + XCT TFSKP(E) + JRST FINIS ;IF FALSE -- RETURN + HRRZ C,@1(TB) ;GET CDR OF ARGLIST + JRST ANDLP + +TF: JRST IFALSE + JRST TRUTH + +TFI: JRST IFALS1 + JRST FINIS + +TFSKP: CAIE 0,TFALSE + CAIN 0,TFALSE + +IMFUNCTION FUNCTION,FSUBR + + ENTRY 1 + + MOVSI A,TEXPR + MOVE B,1(AB) + JRST FINIS + + ;SUBR VERSIONS OF AND/OR + +MFUNCTION ANDP,SUBR,[AND?] + JUMPGE AB,TRUTH + MOVE C,[CAIN 0,TFALSE] + JRST BOOL + +MFUNCTION ORP,SUBR,[OR?] + JUMPGE AB,IFALSE + MOVE C,[CAIE 0,TFALSE] +BOOL: HLRE A,AB ; GET ARG COUNTER + MOVMS A + ASH A,-1 ; DIVIDES BY 2 + MOVE D,AB + PUSHJ P,CBOOL + JRST FINIS + +CANDP: SKIPA C,[CAIN 0,TFALSE] +CORP: MOVE C,[CAIE 0,TFALSE] + JUMPE A,CNOARG + MOVEI D,(A) + ASH D,1 ; TIMES 2 + HRLI D,(D) + SUBB TP,D ; POINT TO ARGS & FIXUP TP PTR + AOBJP D,.+1 ; FIXUP ARG PTR AND FALL INTO CBOOL + +CBOOL: GETYP 0,(D) + XCT C ; WINNER ? + JRST CBOOL1 ; YES RETURN IT + ADD D,[2,,2] + SOJG A,CBOOL ; ANY MORE ? + SUB D,[2,,2] ; NO, USE LAST +CBOOL1: MOVE A,(D) + MOVE B,(D)+1 + POPJ P, + + +CNOARG: MOVSI 0,TFALSE + XCT C + JRST CNOAND + MOVSI A,TFALSE + MOVEI B,0 + POPJ P, +CNOAND: MOVSI A,TATOM + MOVE B,IMQUOTE T + POPJ P, + + +MFUNCTION CLOSURE,SUBR + ENTRY + SKIPL A,AB ;ANY ARGS + JRST TFA ;NO -- LOSE + ADD A,[2,,2] ;POINT AT IDS + PUSH TP,$TAB + PUSH TP,A + PUSH P,[0] ;MAKE COUNTER + +CLOLP: SKIPL A,1(TB) ;ANY MORE IDS? + JRST CLODON ;NO -- LOSE + PUSH TP,(A) ;SAVE ID + PUSH TP,1(A) + PUSH TP,(A) ;GET ITS VALUE + PUSH TP,1(A) + ADD A,[2,,2] ;BUMP POINTER + MOVEM A,1(TB) + AOS (P) + MCALL 1,VALUE + PUSH TP,A + PUSH TP,B + MCALL 2,LIST ;MAKE PAIR + PUSH TP,A + PUSH TP,B + JRST CLOLP + +CLODON: POP P,A + ACALL A,LIST ;MAKE UP LIST + PUSH TP,(AB) ;GET FUNCTION + PUSH TP,1(AB) + PUSH TP,A + PUSH TP,B + MCALL 2,LIST ;MAKE LIST + MOVSI A,TFUNARG + JRST FINIS + + + +;ERROR COMMENTS FOR EVAL + +BADNUM: ERRUUO EQUOTE NEGATIVE-ARGUMENT + +WTY1TP: ERRUUO EQUOTE FIRST-ARG-WRONG-TYPE + +UNBOU: PUSH TP,$TATOM + PUSH TP,EQUOTE UNBOUND-VARIABLE + JRST ER1ARG + +UNAS: PUSH TP,$TATOM + PUSH TP,EQUOTE UNASSIGNED-VARIABLE + JRST ER1ARG + +BADENV: + ERRUUO EQUOTE BAD-ENVIRONMENT + +FUNERR: + ERRUUO EQUOTE BAD-FUNARG + + +MPD.0: +MPD.1: +MPD.2: +MPD.3: +MPD.4: +MPD.5: +MPD.6: +MPD.7: +MPD.8: +MPD.9: +MPD.10: +MPD.11: +MPD.12: +MPD.13: +MPD: ERRUUO EQUOTE MEANINGLESS-PARAMETER-DECLARATION + +NOBODY: ERRUUO EQUOTE HAS-EMPTY-BODY + +BADCLS: ERRUUO EQUOTE BAD-CLAUSE + +NXTAG: ERRUUO EQUOTE NON-EXISTENT-TAG + +NXPRG: ERRUUO EQUOTE NOT-IN-PROG + +NAPTL: +NAPT: ERRUUO EQUOTE NON-APPLICABLE-TYPE + +NONEVT: ERRUUO EQUOTE NON-EVALUATEABLE-TYPE + + +NONATM: ERRUUO EQUOTE NON-ATOMIC-ARGUMENT + + +ILLFRA: ERRUUO EQUOTE FRAME-NO-LONGER-EXISTS + +ILLSEG: ERRUUO EQUOTE ILLEGAL-SEGMENT + +BADMAC: ERRUUO EQUOTE BAD-USE-OF-MACRO + +BADFSB: ERRUUO EQUOTE APPLY-OR-STACKFORM-OF-FSUBR + + +ER1ARG: PUSH TP,(AB) + PUSH TP,1(AB) + MOVEI A,2 + JRST CALER + +END + \ No newline at end of file diff --git a//fopen.63 b//fopen.63 new file mode 100644 index 0000000..af6e1a5 --- /dev/null +++ b//fopen.63 @@ -0,0 +1,4722 @@ +TITLE OPEN - CHANNEL OPENER FOR MUDDLE + +RELOCATABLE + +;C. REEVE MARCH 1973 + +.INSRT MUDDLE > + +SYSQ + +FNAMS==1 +F==E+1 +G==F+1 + +IFE ITS,[ +IF1, .INSRT STENEX > +] +;THIS PROGRAM HAS ENTRIES: FOPEN, FCLOSE, RENAME, READB, PRINTB, FILECOPY, READSTRING, +; PRINTSTRING, NETSTATE, NETACC, NETS, ACCESS, AND FILE-EXISTS? + +;THESE SUBROUTINES HANDLE I/O STREAMS FOR THE MUDDLE SYSTEM. + +; FOPEN - OPENS A FILE FOR EITHER READING OR WRITING. IT TAKES +; FIVE OPTINAL ARGUMENTS AS FOLLOWS: + +; FOPEN (,,,,) +; +; - DIRECTION EITHER READ (INPUT) OR PRINT (OUPUT). DEFAULT IS READ + +; - FIRST FILE NAME. DEFAULT INPUT OR OUTPUT. + +; - SECOND FILE NAME. DEFAULT MUDDLE. + +; - DEVICE FROM WHICH TO OPEN. DEFAULT IS DSK. + +; - SYSTEM (DIRECTORY) NAME. DEFAULT UNAME. + +; FOPEN RETURNS AN OBJECT OF TYPE CHANNEL IF IT SUCCEEDS OTHERWISE NIL + + +; FCLOSE - CLOSES A FILE. TAKES A CHANNEL OBJECT AS ITS ARGUMENT. IT ALSO TAKES +; ACCESS - DOES A .ACCESS ON A CHARACTER BASIS FOR CHARACTER FILES + + +; A CHANNEL OBJECT IS A VECTOR CONTAINIG THE FOLLOWING INFORMATION + +; CHANNO ;ITS I/O CHANNEL NUMBER. 0 MEANS NOT A REAL CHANNEL. +; DIRECT ;DIRECTION (EITHER READ OR PRINT) +; NAME1 ;FIRST NAME OF FILE AS OPENED. +; NAME2 ;SECOND NAME OF FILE +; DEVICE ;DEVICE UPON WHICH THE CHANNEL IS OPEN +; SNAME ;DIRECTORY NAME +; RNAME1 ;REAL FIRST NAME (AS RETURNED BY READING CHANNEL STATUS) +; RNAME2 ;REAL SECOND NAME +; RDEVIC ;REAL DEVICE +; RSNAME ;SYSTEM OR DIRECTORY NAME +; STATUS ;VARIOUS STATUS BITS +; IOINS ;INSTRUCTION EXECUTED TO INPUT OR OUTPUT ONE CHARACTER +; ACCESS ;ACCESS POINTER FOR RAND ACCESS (OR USED FOR DISPLAY INFO) +; RADX ;RADIX FOR CHANNELS NUMBER CONVERSION + +; *** THE FOLLOWING FIELDS FOR OUTPUT ONLY *** +; LINLN ;LENGTH OF A LINE IN CHARACTERS FOR THIS DEVICE +; CHRPOS ;CURRENT POSITION ON CURRENT LINE +; PAGLN ;LENGTH OF A PAGE +; LINPOS ;CURRENT LINE BEING WRITTEN ON + +; *** THE FOLLOWING FILEDS FOR INPUT ONLY *** +; EOFCND ;GETS EVALUATED ON EOF +; LSTCH ;BACKUP CHARACTER +; WAITNS ;FOR TTY INPUT, BECOMES A .SLEEP WHEN WAITING +; EXBUFR ;FOR TTY INPUT, CONTAINS A WAITING BUFFER LIST +; BUFSTR ;A CHARACTER STRING USED AS BUFFER FOR NON-TTY DEVICES + +; THIS DEFINES THE LENGTH OF THE NON-TTY BUFFER +BUFLNT==100 + +;THIS DEFINES BLOCK MODE BIT FOR OPENING +BLOCKM==2 ;DEFINED IN THE LEFT HALF +IMAGEM==4 + + +;THIS IRP DEFINES THE FIELDS AT ASSEMBLY TIME + + CHANLNT==4 ;INITIAL CHANNEL LENGTH + +; BUILD A PROTOTYPE CHANNEL AND DEFINE FILEDS +BUFRIN==-1 ;SPECIAL HACK SO LOSERS WON'T SEE TTY BUFFER +SCRPTO==-3 ;SPECIAL HACK FOR SCRIPT CHANNELS +PROCHN: + +IRP A,,[[CHANNO,FIX],[DIRECT,CHSTR] +[NAME1,CHSTR],[NAME2,CHSTR],[DEVICE,CHSTR],[SNAME,CHSTR] +[RNAME1,CHSTR],[RNAME2,CHSTR],[RDEVIC,CHSTR],[RSNAME,CHSTR] +[STATUS,FIX],[IOINS,FIX],[LINLN,FIX],[CHRPOS,FIX],[PAGLN,FIX],[LINPOS,FIX] +[ACCESS,FIX],[RADX,FIX],[BUFSTR,CHSTR]] + + IRP B,C,[A] + B==CHANLNT-3 + T!C,,0 + 0 + .ISTOP + TERMIN + CHANLNT==CHANLNT+2 +TERMIN + + +; EQUIVALANCES FOR CHANNELS + +EOFCND==LINLN +LSTCH==CHRPOS +WAITNS==PAGLN +EXBUFR==LINPOS +DISINF==BUFSTR ;DISPLAY INFO +INTFCN==BUFSTR ;FUNCTION (OR SUBR, OR RSUBR) TO BE APPLIED FOR INTERNAL CHNLS + + +;DEFINE VARIABLES ASSOCIATED WITH TTY BUFFERS + +IRP A,,[IOIN2,ECHO,CHRCNT,ERASCH,KILLCH,BRKCH,ESCAP,SYSCHR,BRFCHR,BRFCH2,BYTPTR] +A==.IRPCNT +TERMIN + +EXTBFR==BYTPTR+1+<100./5> ;LENGTH OF ADD'L BUFFER + + + + +.GLOBAL IPNAME,MOPEN,MCLOSE,MIOT,ILOOKU,6TOCHS,ICLOS,OCLOS,RGPARS,RGPRS +.GLOBAL OPNCHN,CHMAK,READC,TYO,SYSCHR,BRFCHR,LSTCH,BRFCH2,EXTBFR +.GLOBAL CHRWRD,STRTO6,TTYBLK,WAITNS,EXBUFR,TTICHN,TTOCHN,GETCHR,IILIST +.GLOBAL CHANNO,STATUS,LINPOS,PAGLN,CHRPOS,LINLN,IOINS,ACCESS,ADDNUL +.GLOBAL DIRECT,DISINF,RADX,EOFCND,BUFSTR,MODE1,MODE2,GCHACK,GMTYO,INMTYO +.GLOBAL T.CHAN,NAME1,BFCLOS,DOIOTI,DOIOTO,DOACCS,NOTTY,DEMFLG,BYTDOP,TNXIN +.GLOBAL DISOPN,DISROP,DISCLS,DCHAR,DISLNL,DISPGL,INSTAT,MTYO,CIREST +.GLOBAL ECHO,ERASCH,KILLCH,BRKCH,BYTPTR,SYSCHR,CHRCNT,ESCAP,N.CHNS +.GLOBAL REOPN,QUITTE,CHNL0,CHNL1,BUFRIN,IOIN2,IFALSE,GFALS,IDVAL,PVSTOR,SPSTOR +.GLOBAL BADCHN,WRONGD,CHNCLS,GSNAME,GIBLOK,APLQ,NAPT,ICONS,INCONS,IBLOCK,IDVAL1 +.GLOBAL GRB,GWB,R1CHAR,W1CHAR,BFCLS1,TTYOP2,MPOPJ,COMPER,R1C,W1C,WXCT,RXCT +.GLOBAL TMTNXS,TNXSTR,RDEVIC,CPCH1,RCYCHN,CGFALS,CISTNG,CFILLE,FRSTCH +.GLOBAL TGFALS,ONINT + +.VECT.==40000 + +; PAIR MOVING MACRO + +DEFINE PMOVEM A,B + MOVE 0,A + MOVEM 0,B + MOVE 0,A+1 + MOVEM 0,B+1 + TERMIN + +; DEFINITIONS OF THE OFFSETS INTO THE TP STACK FOR OPEN + +T.SPDL==0 ; SAVES P STACK BASE +T.DIR==2 ; CONTAINS DIRECTION AND MODE +T.NM1==4 ; NAME 1 OF FILE +T.NM2==6 ; NAME 2 OF FILE +T.DEV==10 ; DEVICE NAME +T.SNM==12 ; SNAME +T.XT==14 ; EXTRA CRUFT IF NECESSARY +T.CHAN==16 ; CHANNEL AS GENERATED + +; OFFSETS FROM PSTACK BASE (USED FOR OPENS, .RCHST AND .FDELES) + +S.DIR==0 ; CODE FOR DIRECTION 0-IN, 1-OUT, 2-BIN, 3-BOUT,4-DISPLAY + ; S.DIR(P) = ,, +IFN ITS,[ +S.DEV==1 ; SIXBIT DEVICE RIGHT JUSTIFIED +S.NM1==2 ; SIXBIT NAME1 +S.NM2==3 ; SIXBIT NAME2 +S.SNM==4 ; SIXBIT SNAME +S.X1==5 ; TEMPS +S.X2==6 +S.X3==7 +] + +IFE ITS,[ +S.DEV==1 +S.X1==2 +S.X2==3 +S.X3==4 +] + + +; FLAGS SPECIFYING STATE OF THE WORLD AT VARIOUS TIMES + +NOSTOR==400000 ; ON MEANS DONT BUILD NEW STRINGS +MSTNET==200000 ; ON MEANS ONLY THE "NET" DEVICE CAN WIN +SNSET==100000 ; FLAG, SNAME SUPPLIED +DVSET==040000 ; FLAG, DEV SUPPLIED +N2SET==020000 ; FLAG, NAME2 SET +N1SET==010000 ; FLAG, NAME1 SET +4ARG==004000 ; FLAG, CONSIDER ARGS TO BE 4 STRINGS + +RMT [EXPUNGE N1SET,N2SET,DVSET,SNSET,MSTNET,NOSTOR +] + +; TABLE OF LEGAL MODES + +MODES: IRP A,,[READ,PRINT,READB,PRINTB,PRINTO,PRINAO] + SIXBIT /A/ + TERMIN +NMODES==.-MODES + +MODCOD: 0?1?2?3?3?1 +; TABLE OF KNOWN DEVICES AND A POINTER TO THEIR OPENERS + +IFN ITS,[ +DEVSTB: IRP A,,[DSK,TTY,USR,STY,ST,NET,INT,PTP,PTR,UT,T,NUL] + SIXBIT /A/ ; DEVICE NAMES + TERMIN + +DEVS: IRP B,,[ODSK,OTTY,OUSR,OSTY,OSTY,ONET,OINT,OPTP,OPTP,OUTN,OTTY,ONUL] + SETZ B ; POINTERS + TERMIN +] + +IFE ITS,[ +DEVSTB: IRP A,,[PS,SS,SRC,DSK,TTY,INT,NET] + SIXBIT /A/ + TERMIN + +DEVS: IRP B,,[ODSK,ODSK,ODSK,ODSK,OTTY,OINT,ONET] + SETZ B + TERMIN +] +NDEVS==.-DEVS + + + +;SUBROUTINE TO DO OPENING BEGINS HERE + +MFUNCTION NFOPEN,SUBR,[OPEN-NR] + + JRST FOPEN1 + +MFUNCTION FOPEN,SUBR,[OPEN] + +FOPEN1: ENTRY + PUSHJ P,MAKCHN ;MAKE THE CHANNEL + PUSHJ P,OPNCH ;NOW OPEN IT + JUMPL B,FINIS + SUB D,[4,,4] ; TOP THE CHANNEL + MOVEM D,RCYCHN+1 ; RECYCLE DEAD CHANNEL + SETZM (D) ; ZAP IT + MOVEI C,1(D) + HRLI C,(D) + BLT C,CHANLNT-1(D) + JRST FINIS + +; SUBR TO JUST CREATE A CHANNEL + +IMFUNCTION CHANNEL,SUBR + + ENTRY + PUSHJ P,MAKCHN + MOVSI A,TCHAN + JRST FINIS + + + + +; THIS ROUTINE PARSES ARGUMENTS TO FOPEN ETC. AND BUILDS A CHANNEL BUT DOESN'T OPEN IT + +MAKCHN: PUSH TP,$TPDL + PUSH TP,P ; POINT AT CURRENT STACK BASE + PUSH TP,$TCHSTR + PUSH TP,CHQUOTE READ + MOVEI E,10 ; SLOTS OF TP NEEDED + PUSH TP,[0] + SOJG E,.-1 + MOVEI E,0 + EXCH E,(P) ; GET RET ADDR IN E +IFE ITS, PUSH P,[0] +IRP ATM,,[DEV,NM1,NM2,SNM]MDF,,[DSK,INPUT,>,[ ]]TMDF,,[DSK,INPUT,MUD,[ ]] + MOVE B,IMQUOTE ATM +IFN ITS, PUSH P,E + PUSHJ P,IDVAL1 + GETYP 0,A + CAIN 0,TCHSTR + JRST MAK!ATM + + MOVE A,$TCHSTR +IFN ITS, MOVE B,CHQUOTE MDF +IFE ITS, MOVE B,CHQUOTE TMDF +MAK!ATM: + MOVEM A,T.!ATM(TB) + MOVEM B,T.!ATM+1(TB) +IFN ITS,[ + POP P,E + PUSHJ P,STRTO6 ; RESULT LEFT ON P STACK AS DESIRED +] + TERMIN + PUSH TP,[0] ; PUSH SLOTS + PUSH TP,[0] + + PUSH P,[0] ; EXT SLOTS + PUSH P,[0] + PUSH P,[0] + PUSH P,E ; PUSH RETURN ADDRESS + MOVEI A,0 + + JUMPGE AB,MAKCH0 ; NO ARGS, ALREADY DONE + GETYP 0,(AB) ; 1ST ARG MUST BE A STRING + CAIE 0,TCHSTR + JRST WTYP1 + MOVE A,(AB) ; GET ARG + MOVE B,1(AB) + PUSHJ P,CHMODE ; CHECK OUT OPEN MODE + + PMOVEM (AB),T.DIR(TB) ; SAVE MODE NAME IN TEMPS + ADD AB,[2,,2] ; BUMP PAST DIRECTION + MOVEM AB,ABSAV(TB) + MOVEI A,0 + JUMPGE AB,MAKCH0 ; CHECK NAME1 BASED ON JUST MODE + + MOVEI 0,0 ; FLAGS PRESET + PUSHJ P,RGPARS ; PARSE THE STRING(S) + JRST TMA + +; ARGUMENTS PARSED, DO FINAL CHECKS AND BUILD CHANNEL + +MAKCH0: +IFN ITS,[ + MOVE C,T.SPDL+1(TB) + MOVE D,S.DEV(C) ; GET DEV +] +IFE ITS,[ + MOVE A,T.DEV(TB) + MOVE B,T.DEV+1(TB) + PUSHJ P,STRTO6 + POP P,D + HLRZS D + MOVE C,T.SPDL+1(TB) + MOVEM D,S.DEV(C) +] +IFE ITS, CAIE D,(SIXBIT /INT/);INTERNAL? +IFN ITS, CAME D,[SIXBIT /INT /] + JRST CHNET ; NO, MAYBE NET + SKIPN T.XT+1(TB) ; WAS FCN SUPPLIED? + JRST TFA + +; FALLS TROUGH IF SKIP + + + +; NOW BUILD THE CHANNEL + +ARGSOK: MOVEI A,CHANLNT ; GET LENGTH + SKIPN B,RCYCHN+1 ; RECYCLE? + PUSHJ P,GIBLOK ; GET A BLOCK OF STUFF + SETZM RCYCHN+1 + ADD B,[4,,4] ; HIDE THE TTY BUFFER SLOT + PUSH TP,$TCHAN + PUSH TP,B + HRLI C,PROCHN ; POINT TO PROTOTYPE + HRRI C,(B) ; AND NEW ONE + BLT C,CHANLN-5(B) ; CLOBBER + MOVSI C,TLIST ; TO GIVE HIM A CLEAN LIST OF SCRIPT CHANS + HLLM C,SCRPTO-1(B) + +; NOW BLT IN STUFF FROM THE STACK + + MOVSI C,T.DIR(TB) ; DIRECTION + HRRI C,DIRECT-1(B) + BLT C,SNAME(B) + MOVEI C,RNAME1-1(B) ; NOW "REAL" SLOTS + HRLI C,T.NM1(TB) + BLT C,RSNAME(B) + MOVE B,IMQUOTE MODE + PUSHJ P,IDVAL1 + GETYP 0,A + CAIN 0,TFIX + JRST .+3 + MOVE B,(TP) + POPJ P, + + MOVE C,(TP) +IFE ITS,[ + ANDI B,403776 ; ONLY ALLOW NON-CRITICAL BITSS +] + HRRM B,-4(C) ; HIDE BITS + MOVE B,C + POPJ P, + +; HERE TO VALIDIFY ARGUMENTS FOR A NET OPEN + +CHNET: +IFN ITS,[ + CAME D,[SIXBIT /NET /] ; IS IT NET + JRST MAKCH1] +IFE ITS,[ + CAIE D,(SIXBIT /NET/) ; IS IT NET + JRST ARGSOK] + MOVSI D,TFIX ; FOR TYPES + MOVEI B,T.NM1(TB) ; MAKE SURE ALL ARE FIXED + PUSHJ P,CHFIX + MOVEI B,T.NM2(TB) + PUSHJ P,CHFIX + MOVEI B,T.SNM(TB) + LSH A,-1 ; SKIP DEV FLAG + PUSHJ P,CHFIX + JRST ARGSOK + +MAKCH1: TRNN A,MSTNET ; CANT HAVE SEEN A FIX + JRST ARGSOK + JRST WRONGT + +IFN ITS,[ +CHFIX: TRNE A,N1SET ; SKIP IF NOT SPECIFIED + JRST CHFIX1 + SETOM 1(B) ; SET TO -1 + SETOM S.NM1(C) + MOVEM D,(B) ; CORRECT TYPE +] +IFE ITS,CHFIX: + GETYP 0,(B) + CAIE 0,TFIX + JRST PARSQ +CHFIX1: ADDI C,1 ; POINT TO NEXT FIELD + LSH A,-1 ; AND NEXT FLAG + POPJ P, +PARSQ: CAIE 0,TCHSTR + JRST WRONGT +IFE ITS, POPJ P, +IFN ITS,[ + PUSH P,A + PUSH P,C + PUSH TP,(B) + PUSH TP,1(B) + SUBI B,(TB) + PUSH P,B + MCALL 1,PARSE + GETYP 0,A + CAIE 0,TFIX + JRST WRONGT + POP P,C + ADDI C,(TB) + MOVEM A,(C) + MOVEM B,1(C) + POP P,C + POP P,A + POPJ P, +] + + +; SUBROUTINE TO CHECK VALIDITY OF MODE AND SAVE A CODE + +CHMODE: PUSHJ P,CHMOD ; DO IT + MOVE C,T.SPDL+1(TB) + HRRZM A,S.DIR(C) + POPJ P, + +CHMOD: PUSHJ P,STRTO6 ; TO SIXBIT + POP P,B ; VALUE ENDSUP ON STACK, RESTORE IT + + MOVSI A,-NMODES ; SCAN TO SEE IF LEGAL MODE + CAME B,MODES(A) + AOBJN A,.-1 + JUMPGE A,WRONGD ; ILLEGAL MODE NAME + MOVE A,MODCOD(A) + POPJ P, + + +IFN ITS,[ +; RGPARS -- PARSE THE STRINGS COMPRISING FILE NAMES INTO STANDARD ITS GOODIES + +RGPRS: MOVEI 0,NOSTOR ; DONT STORE STRINGS IF ENTER HERE + +RGPARS: CAMGE AB,[-7,,] ; MULTI-STRING CASE POSSIBLE? + IORI 0,4ARG ; 4 STRING CASE + HRLM 0,(P) ; LH IS FLAGS FOR THIS PROG + MOVSI E,-4 ; FIELDS TO FILL + +RPARGL: GETYP 0,(AB) ; GET TYPE + CAIE 0,TCHSTR ; STRING? + JRST ARGCLB ; NO, JUST CLOBBER IT IN RAW + JUMPGE E,CPOPJ ; DON'T DO ANY MORE + PUSH TP,(AB) ; GET AN ARG + PUSH TP,1(AB) + +FPARS: PUSH TP,-1(TP) ; ANOTHER COPY + PUSH TP,-1(TP) + HLRZ 0,(P) + TRNN 0,4ARG + PUSHJ P,FLSSP ; NO LEADING SPACES + MOVEI A,0 ; WILL HOLD SIXBIT + MOVEI B,6 ; CHARS PER 6BIT WORD + MOVE C,[440600,,A] ; BYTE POINTER INTO A + +FPARSL: HRRZ 0,-1(TP) ; GET COUNT + JUMPE 0,PARSD ; DONE + SOS -1(TP) ; COUNT + ILDB 0,(TP) ; CHAR TO 0 + + CAIE 0," ; FILE NAME QUOTE? + JRST NOCNTQ + HRRZ 0,-1(TP) + JUMPE 0,PARSD + SOS -1(TP) + ILDB 0,(TP) ; USE THIS + JRST GOTCNQ + +NOCNTQ: HLL 0,(P) + TLNE 0,4ARG + JRST GOTCNQ + ANDI 0,177 + CAIG 0,40 ; SPACE? + JRST NDFLD ; YES, TERMINATE THIS FIELD + CAIN 0,": ; DEVICE ENDED? + JRST GOTDEV + CAIN 0,"; ; SNAME ENDED + JRST GOTSNM + +GOTCNQ: ANDI 0,177 + PUSHJ P,A0TO6 ; CONVERT TO 6BIT AND CHECK + + JUMPE B,FPARSL ; IGNORE IF AREADY HAVE 6 + IDPB 0,C + SOJA B,FPARSL + +; HERE IF SPACE ENCOUNTERED + +NDFLD: MOVEI D,(E) ; COPY GOODIE + PUSHJ P,FLSSP ; FLUSH REDUNDANT SPACES + JUMPE 0,PARSD ; NO CHARS LEFT + +NFL0: PUSH P,A ; SAVE SIXBIT WORD + SKIPGE -1(P) ; SKIP IF STRING TO BE STORED + JRST NFL1 + PUSH TP,$TAB ; PREVENT AB LOSSAGE + PUSH TP,AB + PUSHJ P,6TOCHS ; CONVERT TO STRING + MOVE AB,(TP) + SUB TP,[2,,2] +NFL1: HRRZ 0,-1(TP) ; RESTORE CHAR COUNT + +NFL2: MOVEI C,(D) ; COPY REL PNTR + SKIPGE -1(P) ; SKIP IF STRINGS TO BE STORED + JRST NFL3 + ASH D,1 ; TIMES 2 + ADDI D,T.NM1(TB) + MOVEM A,(D) ; STORE + MOVEM B,1(D) +NFL3: MOVSI A,N1SET ; FLAG IT + LSH A,(C) + IORM A,-1(P) ; AND CLOBBER + MOVE D,T.SPDL+1(TB) ; GET P BASE + POP P,@SIXTBL(C) ; AND STORE SIXBIT OF IT + + POP TP,-2(TP) ; MAKE NEW STRING POINTER + POP TP,-2(TP) + JUMPE 0,.+3 ; SKIP IF NO MORE CHARS + AOBJN E,FPARS ; MORE TO PARSE? +CPOPJ: POPJ P, ; RETURN, ALL DONE + + SUB TP,[2,,2] ; FLUSH OLD STRING + ADD E,[1,,1] + ADD AB,[2,,2] ; BUMP ARG + MOVEM AB,ABSAV(TB) + JUMPL AB,RPARGL ; AND GO ON +CPOPJ1: AOS A,(P) ; PREPARE TO WIN + HLRZS A + POPJ P, + + + +; HERE IF STRING HAS ENDED + +PARSD: PUSH P,A ; SAVE 6 BIT + MOVE A,-3(TP) ; CAN USE ARG STRING + MOVE B,-2(TP) + MOVEI D,(E) + JRST NFL2 ; AND CONTINUE + +; HERE IF JUST READ DEV + +GOTDEV: MOVEI D,2 ; CODE FOR DEVICE + JRST GOTFLD ; GOT A FIELD + +; HERE IF JUST READ SNAME + +GOTSNM: MOVEI D,3 +GOTFLD: PUSHJ P,FLSSP + SOJA E,NFL0 + + +; HERE FOR NON STRING ARG ENCOUNTERED + +ARGCLB: SKIPGE (P) ; IF NOT STORING, CONSIDER THIS THE END + + POPJ P, + MOVE C,T.SPDL+1(TB) ; GET P-BASE + MOVE A,S.DEV(C) ; GET DEVICE + CAME A,[SIXBIT /INT /]; IS IT THE INTERNAL DEVICE + JRST TRYNET ; NO, COUD BE NET + MOVE A,0 ; OFFNEDING TYPE TO A + PUSHJ P,APLQ ; IS IT APPLICABLE + JRST NAPT ; NO, LOSE + PMOVEM (AB),T.XT(TB) + ADD AB,[2,,2] ; MUST BE LAST ARG + MOVEM AB,ABSAV(TB) + JUMPL AB,TMA + JRST CPOPJ1 ; ELSE SUCCESSFUL RETURN +TRYNET: CAIE 0,TFIX ; FOR NET DEV, ARGS MUST BE FIX + JRST WRONGT ; TREAT AS WRONG TYPE + MOVSI A,MSTNET ; BETTER BE NET EVENTUALLY + IORM A,(P) ; STORE FLAGS + MOVSI A,TFIX + MOVE B,1(AB) ; GET NUMBER + MOVEI 0,(E) ; MAKE SURE NOT DEVICE + CAIN 0,2 + JRST WRONGT + PUSH P,B ; SAVE NUMBER + MOVEI D,(E) ; SET FOR TABLE OFFSETS + MOVEI 0,0 + ADD TP,[4,,4] + JRST NFL2 ; GO CLOBBER IT AWAY +] + + +; ROUTINE TO FLUSH LEADING SPACES FROM A FIELD + +FLSSP: HRRZ 0,-1(TP) ; GET CHR COUNNT + JUMPE 0,CPOPJ ; FINISHED STRING +FLSS1: MOVE B,(TP) ; GET BYTR + ILDB C,B ; GETCHAR + CAIE C,^Q ; DONT FLUSH CNTL-Q + CAILE C,40 + JRST FLSS2 + MOVEM B,(TP) ; UPDATE BYTE POINTER + SOJN 0,FLSS1 + +FLSS2: HRRM 0,-1(TP) ; UPDATE STRING + POPJ P, + +IFN ITS,[ +;TABLE FOR STFUFFING SIXBITS AWAY + +SIXTBL: SETZ S.NM1(D) + SETZ S.NM2(D) + SETZ S.DEV(D) + SETZ S.SNM(D) + SETZ S.X1(D) +] + +RDTBL: SETZ RDEVIC(B) + SETZ RNAME1(B) + SETZ RNAME2(B) + SETZ RSNAME(B) + + + +IFE ITS,[ + +; TENEX VERSION OF FILE NAME PARSER (ONLY ACCEPT ARGS IN SINGLE STRING) + + +RGPRS: MOVEI 0,NOSTOR + +RGPARS: HRLM 0,(P) ; SAVE FOR STORE CHECKING + CAMGE AB,[-2,,] ; MULTI-STRING CASE POSSIBLE? + JRST TN.MLT ; YES, GO PROCESS +RGPRSS: GETYP 0,(AB) ; CHECK ARG TYPE + CAIE 0,TCHSTR + JRST WRONGT ; FOR NOW ONLY STRING ARGS WIN + PUSH TP,(AB) + PUSH TP,1(AB) + PUSHJ P,FLSSP ; FLUSH LEADING SPACES + PUSHJ P,RGPRS1 + ADD AB,[2,,2] + MOVEM AB,ABSAV(TB) +CHKLST: JUMPGE AB,CPOPJ1 + SKIPGE (P) ; IF FROM OPEN, ALLOW ONE MORE + POPJ P, + PMOVEM (AB),T.XT(TB) + ADD AB,[2,,2] + MOVEM AB,ABSAV(TB) + JUMPL AB,TMA +CPOPJ1: AOS (P) + POPJ P, + +RGPRS1: PUSH P,[0] ; ALLOW A DEVICE SPEC +TN.SNM: MOVE A,(TP) + HRRZ 0,-1(TP) + JUMPE 0,RPDONE + ILDB A,A + CAIE A,"< ; START "DIRECTORY" ? + JRST TN.N1 ; NO LOOK FOR NAME1 + SETOM (P) ; DEV NOT ALLOWED + IBP (TP) ; SKIP CHAR + SOS -1(TP) + PUSHJ P,TN.CNT ; COUNT CHARS TO ">" OR "." + JUMPE B,ILLNAM ; RAN OUT + CAIE A,". + JRST TN.SN3 + PUSH TP,0 + PUSH TP,C +TN.SN1: PUSHJ P,TN.CNT ; COUNT CHARS TO ">" + JUMPE B,ILLNAM ; RAN OUT + CAIE A,". + JRST TN.SN2 + MOVEM 0,-1(TP) + MOVEM C,(TP) + JRST TN.SN1 +TN.SN2: HRRZ B,-3(TP) + SUB B,0 + SUBI B,1 + SUB TP,[2,,2] +TN.SN3: CAIE A,"> ; SKIP IF WINS + JRST ILLNAM + PUSHJ P,TN.CPS ; COPY TO NEW STRING + HLLOS T.SPDL(TB) + MOVEM A,T.SNM(TB) + MOVEM B,T.SNM+1(TB) + +TN.N1: PUSHJ P,TN.CNT + JUMPE B,RPDONE + CAIE A,": ; GOT A DEVICE + JRST TN.N11 + SKIPE (P) + JRST ILLNAM + SETOM (P) + PUSHJ P,TN.CPS + MOVEM A,T.DEV(TB) + MOVEM B,T.DEV+1(TB) + JRST TN.SNM ; NOW LOOK FOR SNAME + +TN.N11: CAIE A,"> + CAIN A,"< + JRST ILLNAM + MOVEM A,(P) ; SAVE END CHAR + PUSHJ P,TN.CPS ; GEN STRING + MOVEM A,T.NM1(TB) + MOVEM B,T.NM1+1(TB) + +TN.N2: SKIPN A,(P) ; GET CHAR BACK + JRST RPDONE + CAIN A,"; ; START VERSION? + JRST .+3 + CAIE A,". ; START NAME2? + JRST ILLNAM ; I GIVE UP!!! + HRRZ B,-1(TP) ; GET RMAINS OF STRING + PUSHJ P,TN.CPS ; AND COPY IT + MOVEM A,T.NM2(TB) + MOVEM B,T.NM2+1(TB) +RPDONE: SUB P,[1,,1] ; FLUSH TEMP + SUB TP,[2,,2] +CPOPJ: POPJ P, + +TN.CNT: HRRZ 0,-1(TP) ; CHAR COUNT + MOVE C,(TP) ; BPTR + MOVEI B,0 ; INIT COUNT TO 0 + +TN.CN1: MOVEI A,0 ; IN CASE RUN OUT + SOJL 0,CPOPJ ; RUN OUT? + ILDB A,C ; TRY ONE + CAIE A," ; TNEX FILE QUOTE? + JRST TN.CN2 + SOJL 0,CPOPJ + IBP C ; SKIP QUOTED CHAT + ADDI B,2 + JRST TN.CN1 + +TN.CN2: CAIE A,"< + CAIN A,"> + POPJ P, + + CAIE A,". + CAIN A,"; + POPJ P, + CAIN A,": + POPJ P, + AOJA B,TN.CN1 + +TN.CPS: PUSH P,B ; # OF CHARS + MOVEI A,4(B) ; ADD 4 TO B IN A + IDIVI A,5 + PUSHJ P,IBLOCK ; GET BLOCK OF WORDS FOR STRING + + POP P,C ; CHAR COUNT BACK + HRLI B,010700 + SUBI B,1 + MOVSI A,TCHSTR + HRRI A,(C) ; CHAR STRING + MOVE D,B ; COPY BYTER + + JUMPE C,CPOPJ + ILDB 0,(TP) ; GET CHAR + IDPB 0,D ; AND STROE + SOJG C,.-2 + + MOVNI C,(A) ; - LENGTH TO C + ADDB C,-1(TP) ; DECREMENT WORDS COUNT + TRNN C,-1 ; SKIP IF EMPTY + POPJ P, + IBP (TP) + SOS -1(TP) ; ELSE FLUSH TERMINATOR + POPJ P, + +ILLNAM: ERRUUO EQUOTE ILLEGAL-TENEX-FILE-NAME + +TN.MLT: MOVE A,AB ; AOBJN POINTER TO ARGS IN A + +TN.ML1: GETYP 0,(A) ; IS THIS ARG OF RIGHT TYPE + CAIE 0,TFIX + CAIN 0,TCHSTR + JRST .+2 + JRST RGPRSS ; ASSUME SINGLE STRING + ADD A,[2,,2] + JUMPL A,TN.ML1 ; TRY NEXT ARG IF ANY LEFT + + MOVEI 0,T.NM1(TB) ; 1ST WORD OF DESTINATION + HLRO A,AB ; MINUS NUMBER OF ARGS IN A + MOVN A,A ; NUMBER OF ARGS IN A + SUBI A,1 + CAMGE AB,[-10,,0] + MOVEI A,7 ; IF MORE THAN 10 ARGS, PUT 7 + ADD A,0 ; LAST WORD OF DESTINATION + HRLI 0,(AB) + BLT 0,(A) ; BLT 'EM IN + ADD AB,[10,,10] ; SKIP THESE GUYS + MOVEM AB,ABSAV(TB) + JRST CHKLST + +] + + +; ROUTINE TO OPEN A CHANNEL FOR ANY DEVICE. NAMES ARE ASSUMED TO ALREADY +; BE ON BOTH TP STACK AND P STACK + +OPNCH: MOVE C,T.SPDL+1(TB) ; GET PDL BASE + HRRZ A,S.DIR(C) + ANDI A,1 ; JUST WANT I AND O +IFE ITS,[ + HRLM A,S.DEV(C) +; .TRANS S.DEV(C) ; UNDO ANY TRANSLATIONS +; JRST TRLOST ; COMPLAIN +] +IFN ITS,[ + HRLM A,S.DIR(C) +] + +IFN ITS,[ + MOVE A,S.DEV(C) ; GET SIXBIT DEVICE CODE +] + +IFE ITS,[HRLZS A,S.DEV(C) +] + + MOVSI B,-NDEVS ; AOBJN COUNTER +DEVLP: SETO D, + MOVE 0,DEVSTB(B) ; GET ONE FROM TABLE + MOVE E,A +DEVLP1: AND E,D ; FLUSH POSSIBLE DIGITNESS + CAMN 0,E + JRST CHDIGS ; MAKE SURE REST IS DIGITS + LSH D,6 + JUMPN D,DEVLP1 ; KEEP TRUCKING UNTIL DONE + +; WASN'T THAT DEVICE, MOVE TO NEXT +NXTDEV: AOBJN B,DEVLP + JRST ODSK ; UNKNOWN DEVICE IS ASSUMED TO BE DISK + +IFN ITS,[ +OUSR: HRRZ A,S.DIR(C) ; BLOCK OR UNIT? + TRNE A,2 ; SKIP IF UNIT + JRST ODSK + PUSHJ P,OPEN1 ; OPEN IT + PUSHJ P,FIXREA ; AND READCHST IT + MOVE B,T.CHAN+1(TB) ; RESTORE CHANNEL + MOVE 0,[PUSHJ P,DOIOT] ; GET AN IOINS + MOVEM 0,IOINS(B) + MOVE C,T.SPDL+1(TB) + HRRZ A,S.DIR(C) + TRNN A,1 + JRST EOFMAK + MOVEI 0,80. + MOVEM 0,LINLN(B) + JRST OPNWIN + +OSTY: HLRZ A,S.DIR(C) + IORI A,10 ; THE DONT LOSE BIT (DONT HANG ON INPUT DO ON OUTPUT) + HRLM A,S.DIR(C) + JRST OUSR +] + +; MAKE SURE DIGITS EXIST + +CHDIGS: SETCA D, + JUMPE D,DISPA ; NO DIGITS, WIN IMMEDIATE + MOVE E,A + AND E,D ; LEAVES ONLY DIGITS, IF WINNING + LSH E,6 + LSH D,6 + JUMPG D,.-2 ; KEEP GOING TIL DIGITS LEFT SHIFTED + JRST CHDIGN + +CHDIG1: CAIG D,'9 + CAIGE D,'0 + JRST NXTDEV ; NOT A DIGIT, LOSE + JUMPE E,DISPA ; IF THAT'S ALL THE CHARACTERS, WIN! +CHDIGN: SETZ D, + ROTC D,6 ; GET NEXT CHARACTER INTO D + JRST CHDIG1 ; GO TEST? + +; HERE TO DISPATCH IF SUCCESSFUL + +DISPA: JRST @DEVS(B) + + +IFN ITS,[ + +; DISK DEVICE OPNER COME HERE + +ODSK: MOVE A,S.SNM(C) ; GET SNAME + .SUSET [.SSNAM,,A] ; CLOBBER IT + PUSHJ P,OPEN0 ; DO REAL LIVE OPEN +] +IFE ITS,[ + +; TENEX DISK FILE OPENER + +ODSK: MOVE B,T.CHAN+1(TB) ; GET CHANNEL + PUSHJ P,STSTK ; EXPAND STRING ONTO STACK (E POINTS TO OLD P) + MOVE A,DIRECT-1(B) + MOVE B,DIRECT(B) + PUSHJ P,STRTO6 ; GET DIR NAME + MOVE C,(P) + MOVE D,T.SPDL+1(TB) + HRRZ D,S.DIR(D) + CAME C,[SIXBIT /PRINAO/] + CAMN C,[SIXBIT /PRINTO/] + IORI D,100 ; TURN ON BIT TO SAY USE OLD FILE + MOVSI A,101 ; START SETTING UP BITS EXTRA BIT FOR MSB + TRNE D,1 ; SKIP IF INPUT + TRNE D,100 ; WITE OVER? + TLOA A,100000 ; FORCE OLD VERSION + TLO A,600000 ; FORCE NEW VERSION + HRROI B,1(E) ; POINT TO STRING + GTJFN + TDZA 0,0 ; SAVE FACT OF NO SKIP + MOVEI 0,1 ; INDICATE SKIPPED + POP P,C ; RECOVER OPEN MODE SIXBIT + MOVE P,E ; RESTORE PSTACK + JUMPE 0,GTJLOS ; FIND OUT WHAT HAPPENED + + MOVE B,T.CHAN+1(TB) ; GET CHANNEL + HRRZ 0,-4(B) ; FUNNY MODE BITS + HRRZM A,CHANNO(B) ; SAVE IT + ANDI A,-1 ; READ Y TO DO OPEN + MOVSI B,440000 ; USE 36. BIT BYES + HRRI B,200000 ; ASSUME READ +; CAMN C,[SIXBIT /READB/] +; TRO B,2000 ; TURN ON THAWED IF READB + IOR B,0 + TRNE D,1 ; SKIP IF READ + HRRI B,300000 ; WRITE BIT + HRRZ 0,FSAV(TB) ; SEE IF REF DATE HACK + CAIN 0,NFOPEN + TRO B,400 ; SET DON'T MUNG REF DATE BIT + MOVE E,B ; SAVE BITS FOR REOPENS + OPENF + JRST OPFLOS + MOVE B,[2,,11] ; GET LENGTH & BYTE SIZE + PUSH P,[0] + PUSH P,[0] + MOVEI C,-1(P) + GTFDB + LDB 0,[300600,,-1(P)] ; GET BYTE SIZE + MOVE B,(P) + SUB P,[2,,2] + CAIN 0,7 + JRST SIZASC + CAIN 0,36. + SIZEF ; USE OPENED SIZE + JFCL + IMULI B,5 ; TO BYTES +SIZASC: MOVEI 0,C.OPN+C.READ+C.DISK + TRNE D,1 ; SKIP FOR READ + MOVEI 0,C.OPN+C.PRIN+C.DISK + TRNE D,2 ; SKIP IF NOT BINARY FILE + TRO 0,C.BIN + HRL 0,B + MOVE B,T.CHAN+1(TB) + TRNE D,1 + HLRM 0,LSTCH-1(B) ; SAVE CURRENT LENGTH + MOVEM E,STATUS(B) + HRRM 0,-2(B) ; MUNG THOSE BITS + ASH A,1 ; POINT TO SLOT + ADDI A,CHNL0 ; TO REAL SLOT + MOVEM B,1(A) ; SAVE CHANNEL + PUSHJ P,TMTNXS ; GET STRING FROM TENEX + MOVE B,CHANNO(B) ; JFN TO A + HRROI A,1(E) ; BASE OF STRING + MOVE C,[111111,,140001] ; WEIRD CONTROL BITS + JFNS ; GET STRING + MOVEI B,1(E) ; POINT TO START OF STRING + SUBM P,E ; RELATIVIZE E + PUSHJ P,TNXSTR ; MAKE INTO A STRING + SUB P,E ; BACK TO NORMAL + PUSH TP,A + PUSH TP,B + PUSHJ P,RGPRS1 ; PARSE INTO FIELDS + MOVE B,T.CHAN+1(TB) + MOVEI C,RNAME1-1(B) + HRLI C,T.NM1(TB) + BLT C,RSNAME(B) + JRST OPBASC +OPFLOS: MOVEI C,(A) ; SAVE ERROR CODE + MOVE B,T.CHAN+1(TB) + HRRZ A,CHANNO(B) ; JFN BACK TO A + RLJFN ; TRY TO RELEASE IT + JFCL + MOVEI A,(C) ; ERROR CODE BACK TO A + +GTJLOS: MOVE B,T.CHAN+1(TB) + PUSHJ P,TGFALS ; GET A FALSE WITH REASON + JRST OPNRET + +STSTK: PUSH TP,$TCHAN + PUSH TP,B + MOVEI A,4+5 ; COUNT CHARS NEEDED (NEED LAST 0 BYTE) + MOVE B,(TP) + ADD A,RDEVIC-1(B) + ADD A,RNAME1-1(B) + ADD A,RNAME2-1(B) + ADD A,RSNAME-1(B) + ANDI A,-1 ; TO 18 BITS + MOVEI 0,A(A) + IDIVI A,5 ; TO WORDS NEEDED + POP P,C ; SAVE RET ADDR + MOVE E,P ; SAVE POINTER + PUSH P,[0] ; ALOCATE SLOTS + SOJG A,.-1 + PUSH P,C ; RET ADDR BACK + INTGO ; IN CASE OVERFLEW + PUSH P,0 + MOVE B,(TP) ; IN CASE GC'D + MOVE D,[440700,,1(E)] ; BYTE POINTER TO IT + MOVEI A,RDEVIC-1(B) + PUSHJ P,MOVSTR ; FLUSH IT ON + HRRZ A,T.SPDL(TB) + JUMPN A,NLNMS ; USER GAVE NAME, USE IT (CAREFUL, RELIES ON + ; A BEING NON ZERO) + PUSH P,B + PUSH P,C + MOVEI A,0 ; HERE TO SEE IF THIS IS REALLY L.N. + HRROI B,1(E) + HRROI C,1(P) + LNMST ; LOOK UP LOGICAL NAME + MOVNI A,1 ; NOT A LOGICAL NAME + POP P,C + POP P,B +NLNMS: MOVEI 0,": + IDPB 0,D + JUMPE A,ST.NM1 ; LOGICAL NAME, FLUSH SNAME + HRRZ A,RSNAME-1(B) ; ANY SNAME AT ALL? + JUMPE A,ST.NM1 ; NOPE, CANT HACK WITH IT + MOVEI A,"< + IDPB A,D + MOVEI A,RSNAME-1(B) + PUSHJ P,MOVSTR ; SNAME UP + MOVEI A,"> + IDPB A,D +ST.NM1: MOVEI A,RNAME1-1(B) + PUSHJ P,MOVSTR + MOVEI A,". + IDPB A,D + MOVEI A,RNAME2-1(B) + PUSHJ P,MOVSTR + SUB TP,[2,,2] + POP P,A + POPJ P, + +MOVSTR: HRRZ 0,(A) ; CHAR COUNT + MOVE A,1(A) ; BYTE POINTER + SOJL 0,CPOPJ + ILDB C,A ; GET CHAR + IDPB C,D ; MUNG IT UP + JRST .-3 + +; MAKE A TENEX ERROR MESSAGE STRING + +TGFALS: PUSH TP,$TCHAN + PUSH TP,B + PUSH P,A ; SAVE ERROR CODE + PUSHJ P,TMTNXS ; STRING ON STACK + HRROI A,1(E) ; POINT TO SPACE + MOVE B,(E) ; ERROR CODE + HRLI B,400000 ; FOR ME + MOVSI C,-100. ; MAX CHARS + ERSTR ; GET TENEX STRING + JRST TGFLS1 + JRST TGFLS1 + + MOVEI B,1(E) ; A AND B BOUND STRING + SUBM P,E ; RELATIVIZE E + PUSHJ P,TNXSTR ; BUILD STRING + SUB P,E ; P BACK TO NORMAL +TGFLS2: +IFE FNAMS, SUB P,[1,,1] ; FLUSH ERROR CODE SLOT +IFN FNAMS,[ + PUSH TP,A + PUSH TP,B + SKIPN B,-2(TP) + JRST TGFLS3 + PUSHJ P,STSTK + MOVEI B,1(E) + SUBM P,E + MOVSI A,440700 + HRRI A,(P) + MOVEI C,5 + ILDB 0,A + JUMPE 0,.+2 + SOJG C,.-2 + + PUSHJ P,TNXSTR + PUSH TP,A + PUSH TP,B + SUB P,E +TGFLS3: POP P,A + PUSH TP,$TFIX + PUSH TP,A + MOVEI A,3 + SKIPN B + MOVEI A,2 +] +IFE FNAMS,[ + MOVEI A,1 +] + PUSHJ P,IILIST ; BUILD LIST + MOVSI A,TFALSE ; MAKE IT FALSE + SUB TP,[2,,2] + POPJ P, + +TGFLS1: MOVE P,E ; RESET STACK + MOVE A,$TCHSTR + MOVE B,CHQUOTE UNKNOWN PROBLEM IN I/O + JRST TGFLS2 + +] +; OTHER BUFFERED DEVICES JOIN HERE + +OPDSK1: +IFN ITS,[ + PUSHJ P,FIXREA ; STORE THE "REAL" NAMES INTO THE CHANNEL +] +OPBASC: MOVE C,T.SPDL+1(TB) ; C WAS CLOBBERED, GET IT BACK + HRRZ A,S.DIR(C) ; FIND OUT IF OPEN IS ASCII OR WORD + TRZN A,2 ; SKIP IF BINARY + PUSHJ P,OPASCI ; DO IT FOR ASCII + +; NOW SET UP IO INSTRUCTION FOR CHANNEL + +MAKION: MOVE B,T.CHAN+1(TB) + MOVEI C,GETCHR + JUMPE A,MAKIO1 ; JUMP IF INPUT + MOVEI C,PUTCHR ; ELSE GET INPUT + MOVEI 0,80. ; DEFAULT LINE LNTH + MOVEM 0,LINLN(B) + MOVSI 0,TFIX + MOVEM 0,LINLN-1(B) +MAKIO1: + HRLI C,(PUSHJ P,) + MOVEM C,IOINS(B) ; STORE IT + JUMPN A,OPNWIN ; GET AN EOF FORM FOR INPUT CHANNEL + +; HERE TO CONS UP + +EOFMAK: MOVSI C,TATOM + MOVE D,EQUOTE END-OF-FILE + PUSHJ P,INCONS + MOVEI E,(B) + MOVSI C,TATOM + MOVE D,IMQUOTE ERROR + PUSHJ P,ICONS + MOVE D,T.CHAN+1(TB) ; RESTORE CHANNEL + MOVSI 0,TFORM + MOVEM 0,EOFCND-1(D) + MOVEM B,EOFCND(D) + +OPNWIN: MOVEI 0,10. ; SET UP RADIX + MOVSI A,TCHAN ; OPEN SUCCEEDED, RET CHANNEL + MOVE B,T.CHAN+1(TB) + MOVEM 0,RADX(B) + +OPNRET: MOVE D,T.CHAN+1(TB) ; IN CASE WE RECYCLE IT + MOVE C,(P) ; RET ADDR + SUB P,[S.X3+2,,S.X3+2] + SUB TP,[T.CHAN+2,,T.CHAN+2] + JRST (C) + + +; HERE TO CREATE CHARACTER BUFFERS FOR ASCII I/O + +OPASCI: PUSH P,A ; CONTAINS MODE, SAVE IT + MOVEI A,BUFLNT ; GET SIZE OF BUFFER + PUSHJ P,IBLOCK ; GET STORAGE + MOVSI 0,TWORD+.VECT. ; SET UTYPE + MOVEM 0,BUFLNT(B) ; AND STORE + MOVSI A,TCHSTR + SKIPE (P) ; SKIP IF INPUT + JRST OPASCO + MOVEI D,BUFLNT-1(B) ; REST BYTE POINTER +OPASCA: HRLI D,010700 + MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK + MOVEI 0,C.BUF + IORM 0,-2(B) ; TURN ON BUFFER BIT + MOVEM A,BUFSTR-1(B) + MOVEM D,BUFSTR(B) ; CLOBBER + POP P,A + POPJ P, + +OPASCO: HRROI C,777776 + MOVEM C,(B) ; -1 THE BUFFER (LEAVE OFF LOW BIT) + MOVSI C,(B) + HRRI C,1(B) ; BUILD BLT POINTER + BLT C,BUFLNT-1(B) ; ZAP + MOVEI D,-1(B) ; START MAKING STRING POINTER + HRRI A,BUFLNT*5 ; SET UP CHAR COUNT + JRST OPASCA + + +; OPEN NON FILE ORIENTED DEVICES (NUL, PTR, PTP ETC.) + +IFN ITS,[ +ONUL: +OPTP: +OPTR: PUSHJ P,OPEN0 ; SET UP MODE AND OPEN + SETZM S.NM1(C) ; CLOBBER UNINTERESTING FIELDS + SETZM S.NM2(C) + SETZM S.SNM(C) + JRST OPDSK1 + +; OPEN DEVICES THAT IGNORE SNAME + +OUTN: PUSHJ P,OPEN0 + SETZM S.SNM(C) + JRST OPDSK1 + +] + +; INTERNAL CHANNEL OPENER + +OINT: HRRZ A,S.DIR(C) ; CHECK DIR + CAIL A,2 ; READ/PRINT? + JRST WRONGD ; NO, LOSE + + MOVE 0,INTINS(A) ; GET INS + MOVE D,T.CHAN+1(TB) ; AND CHANNEL + MOVEM 0,IOINS(D) ; AND CLOBBER + MOVEI 0,C.OPN+C.READ + TRNE A,1 + MOVEI 0,C.OPN+C.PRIN + HRRM 0,-2(D) + SETOM STATUS(D) ; MAKE SURE NOT AA TTY + PMOVEM T.XT(TB),INTFCN-1(D) + +; HERE TO SAVE PSEUDO CHANNELS + +SAVCHN: HRRZ E,CHNL0+1 ; POINT TO CURRENT LIST + MOVSI C,TCHAN + PUSHJ P,ICONS ; CONS IT ON + HRRZM B,CHNL0+1 + JRST OPNWIN + +; INT DEVICE I/O INS + +INTINS: PUSHJ P,GTINTC + PUSHJ P,PTINTC + + +; HERE TO OPEN THE NET DEVICE (I.E. THE ARPA NET) + +IFN ITS,[ +ONET: HRRZ A,S.DIR(C) ; DIRECTION CODE + CAILE A,1 ; ASCII ? + IORI A,4 ; TURN ON IMAGE BIT + SKIPGE S.NM1(C) ; NAME1 I.E. LOCAL HOST GIVEN + IORI A,10 ; NO, WE WILL LET ITS GIVE US ONE + SKIPGE S.NM2(C) ; NORMAL OR "LISTEN" + IORI A,20 ; TURN ON LISTEN BIT + MOVEI 0,7 ; DEFAULT BYTE SIZE + TRNE A,2 ; UNLESS + MOVEI 0,36. ; IMAGE WHICH IS 36 + SKIPN T.XT(TB) ; BYTE SIZE GIVEN? + MOVEM 0,S.X1(C) ; NO, STORE DEFAULT + SKIPG D,S.X1(C) ; BYTE SIZE REASONABLE? + JRST RBYTSZ ; NO <0, COMPLAIN + TRNE A,2 ; SKIP TO CHECK ASCII + JRST ONET2 ; CHECK IMAGE + CAIN D,7 ; 7-BIT WINS + JRST ONET1 + CAIE D,44 ; 36-BIT INDICATES BLOCK ASCII MODE + JRST .+3 + IORI A,2 ; SET BLOCK FLAG + JRST ONET1 + IORI A,40 ; USE 8-BIT MODE + CAIN D,10 ; IS IT RIGHT + JRST ONET1 ; YES +] + +RBYTSZ: ERRUUO EQUOTE BYTE-SIZE-BAD + +IFN ITS,[ +ONET2: CAILE D,36. ; IMAGE SIZE REASONABLE? + JRST RBYTSZ ; NO + CAIN D,36. ; NORMAL + JRST ONET1 ; YES, DONT SET FIELD + + ASH D,9. ; POSITION FOR FIELD + IORI A,40(D) ; SET IT AND ITS BIT + +ONET1: HRLM A,S.DIR(C) ; CLOBBER OPEN BLOCK + MOVE E,A ; SAVE BLOCK MODE INFO + PUSHJ P,OPEN1 ; DO THE OPEN + PUSH P,E + +; CLOBBER REAL SLOTS FOR THE OPEN + + MOVEI A,3 ; GET STATE VECTOR + PUSHJ P,IBLOCK + MOVSI A,TUVEC + MOVE D,T.CHAN+1(TB) + HLLM A,BUFRIN-1(D) + MOVEM B,BUFRIN(D) + MOVSI A,TFIX+.VECT. ; SET U TYPE + MOVEM A,3(B) + MOVE C,T.SPDL+1(TB) + MOVE B,T.CHAN+1(TB) + + PUSHJ P,INETST ; GET STATE + + POP P,A ; IS THIS BLOCK MODE + MOVEI 0,80. ; POSSIBLE LINE LENGTH + TRNE A,1 ; SKIP IF INPUT + MOVEM 0,LINLN(B) + TRNN A,2 ; BLOCK MODE? + JRST .+3 + TRNN A,4 ; ASCII MODE? + JRST OPBASC ; GO SETUP BLOCK ASCII + MOVE 0,[PUSHJ P,DOIOT] + MOVEM 0,IOINS(B) + + JRST OPNWIN + +; INTERNAL ROUTINE TO GET THE CURRENT STATE OF THE NETWROK CHANNEL + +INETST: MOVE A,S.NM1(C) + MOVEM A,RNAME1(B) + MOVE A,S.NM2(C) + MOVEM A,RNAME2(B) + LDB A,[1100,,S.SNM(C)] + MOVEM A,RSNAME(B) + + MOVE E,BUFRIN(B) ; GET STATE BLOCK +INTST1: HRRE 0,S.X1(C) + MOVEM 0,(E) + ADDI C,1 + AOBJN E,INTST1 + + POPJ P, + + +; ACCEPT A CONNECTION + +MFUNCTION NETACC,SUBR + + PUSHJ P,ARGNET ; CHECK THAT ARG IS AN OPEN NET CHANNEL + MOVE A,CHANNO(B) ; GET CHANNEL + LSH A,23. ; TO AC FIELD + IOR A,[.NETACC] + XCT A + JRST IFALSE ; RETURN FALSE +NETRET: MOVE A,(AB) + MOVE B,1(AB) + JRST FINIS + +; FORCE SYSTEM NETWORK BUFFERS TO BE SENT + +MFUNCTION NETS,SUBR + + PUSHJ P,ARGNET + CAME A,MODES+1 + CAMN A,MODES+3 + SKIPA A,CHANNO(B) ; GET CHANNEL + JRST WRONGD + LSH A,23. + IOR A,[.NETS] + XCT A + JRST NETRET + +; SUBR TO RETURN UPDATED NET STATE + +MFUNCTION NETSTATE,SUBR + + PUSHJ P,ARGNET ; IS IT A NET CHANNEL + PUSHJ P,INSTAT + JRST FINIS + +; INTERNAL NETSTATE ROUTINE + +INSTAT: MOVE C,P ; GET PDL BASE + MOVEI 0,S.X3 ; # OF SLOTS NEEDED + PUSH P,[0] + SOJN 0,.-1 +; RESTORED FROM MUDDLE 54. IT SEEMED TO WORK THERE, AND THE STUFF +; COMMENTED OUT HERE CERTAINLY DOESN'T. + MOVEI D,S.DEV(C) + HRL D,CHANNO(B) + .RCHST D, +; HRR D,CHANNO(B) ; SETUP FOR RFNAME CALL +; DOTCAL RFNAME,[D,[2003,,S.DEV],[2003,,S.NM1],[2003,,S.NM2],[2003,,S.SNM]] +; .LOSE %LSFIL ; THIS MAY NOT BE DESIRABLE, BUT I ASSUME WE CARE IF + ; LOSSAGE + PUSHJ P,INETST ; INTO VECTOR + SUB P,[S.X3,,S.X3] + MOVE B,BUFRIN(B) + MOVSI A,TUVEC + POPJ P, +] +; INTERNAL ROUTINE TO CHECK FOR CORRECT CHANNEL TYPE + +ARGNET: ENTRY 1 + GETYP 0,(AB) + CAIE 0,TCHAN + JRST WTYP1 + MOVE B,1(AB) ; GET CHANNEL + SKIPN CHANNO(B) ; OPEN? + JRST CHNCLS + MOVE A,RDEVIC-1(B) ; GET DEV NAME + MOVE B,RDEVIC(B) + PUSHJ P,STRTO6 + POP P,A + CAME A,[SIXBIT /NET /] + JRST NOTNET + MOVE B,1(AB) + MOVE A,DIRECT-1(B) ; CHECK FOR A READ SOCKET + MOVE B,DIRECT(B) + PUSHJ P,STRTO6 + MOVE B,1(AB) ; RESTORE CHANNEL + POP P,A + POPJ P, + +IFE ITS,[ + +; TENEX NETWRK OPENING CODE + +ONET: MOVE B,T.CHAN+1(TB) ; GET CHANNEL + MOVSI C,100700 + HRRI C,1(P) + MOVE E,P + PUSH P,[ASCII /NET:/] ; FOR STRINGS + GETYP 0,RNAME1-1(B) ; CHECK TYPE + CAIE 0,TFIX ; SKIP IF # SUPPLIED + JRST ONET1 + MOVE 0,RNAME1(B) ; GET IT + PUSHJ P,FIXSTK + JFCL + JRST ONET2 +ONET1: CAIE 0,TCHSTR + JRST WRONGT + HRRZ 0,RNAME1-1(B) + MOVE B,RNAME1(B) + JUMPE 0,ONET2 + ILDB A,B + JSP D,ONETCH + SOJA 0,.-3 +ONET2: MOVEI A,". + JSP D,ONETCH + MOVE B,T.CHAN+1(TB) + GETYP 0,RNAME2-1(B) + CAIE 0,TFIX + JRST ONET3 + GETYP 0,RSNAME-1(B) + CAIE 0,TFIX + JRST WRONGT + MOVE 0,RSNAME(B) + CAIG 0,377 ;NEW STYLE 32 BIT HOST NUMBER? + JRST ONET2A +;CONVERT HOSTS2 HOST NUMBERS TO INTERNET (TOPS-20) HOST NUMBERS + MOVEI A,0 + LDB B,[001100,,0] ;HOST NUMBER: 1.1-1.9 -> + DPB B,[201000,,A] ; 2.8-3.6 + LDB B,[111100,,0] ;IMP LOW BITS: 2.1-2.9 -> + DPB B,[001000,,A] ; 1.1-1.8 + LDB B,[221100,,0] ;IMP HIGH BITS: 3.1-3.9 -> + DPB B,[101000,,A] ; 1.9-2.7 + LDB B,[331100,,0] ;NETWORK: 4.1-4.9 -> + DPB B,[301000,,A] ; 3.7-4.5 + MOVE 0,A +ONET2A: PUSHJ P,FIXSTK + JRST ONET4 + MOVE B,T.CHAN+1(TB) + MOVEI A,"- + JSP D,ONETCH + MOVE 0,RNAME2(B) + PUSHJ P,FIXSTK + JRST WRONGT + JRST ONET4 +ONET3: CAIE 0,TCHSTR + JRST WRONGT + HRRZ 0,RNAME2-1(B) + MOVE B,RNAME2(B) + JUMPE 0,ONET4 + ILDB A,B + JSP D,ONETCH + SOJA 0,.-3 + +ONET4: +ONET5: MOVE B,T.CHAN+1(TB) + GETYP 0,RNAME2-1(B) + CAIN 0,TCHSTR + JRST ONET6 + MOVEI A,"; + JSP D,ONETCH + MOVEI A,"T + JSP D,ONETCH +ONET6: MOVSI A,1 + HRROI B,1(E) ; STRING POINTER + GTJFN ; GET THE G.D JFN + TDZA 0,0 ; REMEMBER FAILURE + MOVEI 0,1 + MOVE P,E ; RESTORE P + JUMPE 0,GTJLOS ; CONS UP ERROR STRING + + MOVE B,T.CHAN+1(TB) + HRRZM A,CHANNO(B) ; SAVE THE JFN + + MOVE C,T.SPDL+1(TB) + MOVE D,S.DIR(C) + MOVEI B,10 + TRNE D,2 + MOVEI B,36. + SKIPE T.XT(TB) + MOVE B,T.XT+1(TB) + JUMPL B,RBYTSZ + CAILE B,36. + JRST RBYTSZ + ROT B,-6 + TLO B,3400 + HRRI B,200000 + TRNE D,1 ; SKIP FOR INPUT + HRRI B,100000 + ANDI A,-1 ; ISOLATE JFCN + OPENF + JRST OPFLOS ; REPORT ERROR + MOVE B,T.CHAN+1(TB) + ASH A,1 ; POINT TO SLOT + ADDI A,CHNL0 ; TO REAL SLOT + MOVEM B,1(A) ; SAVE CHANNEL + MOVE C,T.SPDL+1(TB) ; POINT TO P BASE + HRRZ A,S.DIR(C) ; 0/ 0 FOR READ 0/ 1 FOR PRINT + MOVEI 0,C.OPN+C.READ + TRNE A,1 + MOVEI 0,C.OPN+C.PRIN + TRNE A,2 + TRO 0,C.BIN + HRRM 0,-2(B) + MOVE A,CHANNO(B) + CVSKT ; GET ABS SOCKET # + FATAL NETWORK BITES THE BAG! + MOVE D,B + MOVE B,T.CHAN+1(TB) + MOVEM D,RNAME1(B) + MOVSI 0,TFIX + MOVEM 0,RNAME1-1(B) + + MOVSI 0,TFIX + MOVEM 0,RNAME2-1(B) + MOVEM 0,RSNAME-1(B) + MOVE C,T.SPDL+1(TB) + MOVE C,S.DIR(C) + MOVE 0,[PUSHJ P,DONETO] + TRNN C,1 ; SKIP FOR OUTPUT + MOVE 0,[PUSHJ P,DONETI] + MOVEM 0,IOINS(B) + MOVEI 0,80. ; LINELENGTH + TRNE C,1 ; SKIP FOR INPUT + MOVEM 0,LINLN(B) + MOVEI A,3 ; GET STATE UVECTOR + PUSHJ P,IBLOCK + MOVSI 0,TFIX+.VECT. + MOVEM 0,3(B) + MOVE C,B + MOVE B,T.CHAN+1(TB) + MOVEM C,BUFRIN(B) + MOVSI 0,TUVEC + HLLM 0,BUFRIN-1(B) + MOVE B,CHANNO(B) ; GET JFN + MOVEI A,4 ; CODE FOR GTNCP + MOVEI C,1(P) + ADJSP P,4 ; ROOM FOR DATA + MOVE D,[-4,,1] ; GET FHOST, LOC SOC, F SOC + GTNCP + FATAL NET LOSSAGE ; GET STATE + MOVE B,(P) + MOVE D,-1(P) + MOVE C,-3(P) + ADJSP P,-4 + MOVE E,T.CHAN+1(TB) + MOVEM D,RNAME2(E) + MOVEM C,RSNAME(E) + MOVE C,BUFRIN(E) + MOVEM B,(C) ; INITIAL STATE STORED + MOVE B,E + JRST OPNWIN + +; DOIOT FOR TENEX NETWRK + +DONETO: PUSH P,0 + MOVE 0,[BOUT] + JRST .+3 + +DONETI: PUSH P,0 + MOVE 0,[BIN] + PUSH P,0 + PUSH TP,$TCHAN + PUSH TP,B + MOVEI 0,(A) ; POSSIBLE OUTPUT CHAR TO 0 + MOVE A,CHANNO(B) + MOVE B,0 + ENABLE + XCT (P) + DISABLE + MOVEI A,(B) ; RET CHAR IN A + MOVE B,(TP) + MOVE 0,-1(P) + SUB P,[2,,2] + SUB TP,[2,,2] + POPJ P, + +NETPRS: MOVEI D,0 + HRRZ 0,(C) + MOVE C,1(C) + +ONETL: ILDB A,C + CAIN A,"# + POPJ P, + SUBI A,60 + ASH D,3 + IORI D,(A) + SOJG 0,ONETL + AOS (P) + POPJ P, + +FIXSTK: CAMN 0,[-1] + POPJ P, + JFFO 0,FIXS3 ; PUT OCTAL DIGITS INTO STIRNG + MOVEI A,"0 + POP P,D + AOJA D,ONETCH +FIXS3: IDIVI A,3 + MOVEI B,12. + SUBI B,(A) + HRLM B,(P) + IMULI A,3 + LSH 0,(A) + POP P,B +FIXS2: MOVEI A,0 + ROTC 0,3 ; NEXT DIGIT + ADDI A,60 + JSP D,ONETCH + SUB B,[1,,0] + TLNN B,-1 + JRST 1(B) + JRST FIXS2 + +ONETCH: IDPB A,C + TLNE C,760000 ; SKIP IF NEW WORD + JRST (D) + PUSH P,[0] + JRST (D) + +INSTAT: MOVE E,B + MOVE B,CHANNO(B) ; GET JFN + MOVEI A,4 ; CODE FOR GTNCP + MOVEI C,1(P) + ADJSP P,4 ; ROOM FOR DATA + MOVE D,[-4,,1] ; GET FHOST, LOC SOC, F SOC + GTNCP + FATAL NET LOSSAGE ; GET STATE + MOVE B,(P) + MOVE D,-1(P) + MOVE C,-3(P) + ADJSP P,-4 + MOVEM D,RNAME2(E) ; UPDATE FOREIGN SOCHKET + MOVEM C,RSNAME(E) ; AND HOST + MOVE C,BUFRIN(E) + XCT ITSTRN(B) ; XLATE TO LOOK MORE LIKE ITS + MOVEM B,(C) ; STORE STATE + MOVE B,E + POPJ P, + +ITSTRN: MOVEI B,0 + JRST NLOSS + JRST NLOSS + MOVEI B,1 + MOVEI B,2 + JRST NLOSS + MOVEI B,4 + PUSHJ P,NOPND + MOVEI B,0 + JRST NLOSS + JRST NLOSS + PUSHJ P,NCLSD + MOVEI B,0 + JRST NLOSS + MOVEI B,0 + +NLOSS: FATAL ILLEGAL NETWORK STATE + +NOPND: MOVE B,DIRECT(E) ; SEE IF READ OR PRINT + ILDB B,B ; GET 1ST CHAR + CAIE B,"R ; SKIP FOR READ + JRST NOPNDW + SIBE ; SEE IF INPUT EXISTS + JRST .+3 + MOVEI B,5 + POPJ P, + MOVEM B,2(C) ; STORE BYTES IN STATE VECTOR + MOVEI B,11 ; RETURN DATA PRESENT STATE + POPJ P, + +NOPNDW: SOBE ; SEE IF OUTPUT PRESENT + JRST .+3 + MOVEI B,5 + POPJ P, + + MOVEI B,6 + POPJ P, + +NCLSD: MOVE B,DIRECT(E) + ILDB B,B + CAIE B,"R + JRST RET0 + SIBE + JRST .+2 + JRST RET0 + MOVEI B,10 + POPJ P, + +RET0: MOVEI B,0 + POPJ P, + + +MFUNCTION NETSTATE,SUBR + + PUSHJ P,ARGNET + PUSHJ P,INSTAT + MOVE B,BUFRIN(B) + MOVSI A,TUVEC + JRST FINIS + +MFUNCTION NETS,SUBR + + PUSHJ P,ARGNET + CAME A,MODES+1 ; PRINT OR PRINTB? + CAMN A,MODES+3 + SKIPA A,CHANNO(B) + JRST WRONGD + MOVEI B,21 + MTOPR +NETRET: MOVE B,1(AB) + MOVSI A,TCHAN + JRST FINIS + +MFUNCTION NETACC,SUBR + + PUSHJ P,ARGNET + MOVE A,CHANNO(B) + MOVEI B,20 + MTOPR + JRST NETRET + +] + +; HERE TO OPEN TELETYPE DEVICES + +OTTY: HRRZ A,S.DIR(C) ; GET DIR CODE + TRNE A,2 ; SKIP IF NOT READB/PRINTB + JRST WRONGD ; CANT DO THAT + +IFN ITS,[ + MOVE A,S.NM1(C) ; CHECK FOR A DIR + MOVE 0,S.NM2(C) + CAMN A,[SIXBIT /.FILE./] + CAME 0,[SIXBIT /(DIR)/] + SKIPA E,[-15.*2,,] + JRST OUTN ; DO IT THAT WAY + + HRRZ A,S.DIR(C) ; CHECK DIR + TRNE A,1 + JRST TTYLP2 + HRRI E,CHNL1 + PUSH P,S.DEV(C) ; SAVE THE SIXBIT DEV NAME + ; HRLZS (P) ; POSTITION DEVICE NAME + +TTYLP: SKIPN D,1(E) ; CHANNEL OPEN? + JRST TTYLP1 ; NO, GO TO NEXT + MOVE A,RDEVIC-1(D) ; GET DEV NAME + MOVE B,RDEVIC(D) + PUSHJ P,STRTO6 ; TO 6 BIT + POP P,A ; GET RESULT + CAMN A,(P) ; SAME? + JRST SAMTYQ ; COULD BE THE SAME +TTYLP1: ADD E,[2,,2] + JUMPL E,TTYLP + SUB P,[1,,1] ; THIS ONE MUST BE UNIQUE +TTYLP2: MOVE C,T.SPDL+1(TB) ; POINT TO P BASE + HRRZ A,S.DIR(C) ; GET DIR OF OPEN + SKIPE A ; IF OUTPUT, + IORI A,20 ; THEN USE DISPLAY MODE + HRLM A,S.DIR(C) ; STORE IN OPEN BLOCK + PUSHJ P,OPEN2 ; OPEN THE TTY + MOVE A,S.DEV(C) ; GET DEVICE NAME + PUSHJ P,6TOCHS ; TO A STRING + MOVE D,T.CHAN+1(TB) ; POINT TO CHANNEL + MOVEM A,RDEVIC-1(D) + MOVEM B,RDEVIC(D) + MOVE C,T.SPDL+1(TB) ; RESTORE PDL BASE + MOVE B,D ; CHANNEL TO B + HRRZ 0,S.DIR(C) ; AND DIR + JUMPE 0,TTYSPC +TTY1: DOTCAL TTYGET,[CHANNO(B),[2000,,0],[2000,,A],[2000,,D]] + .LOSE %LSSYS + DOTCAL TTYSET,[CHANNO(B),MODE1,MODE2,D] + .LOSE %LSSYS + MOVE A,[PUSHJ P,GMTYO] + MOVEM A,IOINS(B) + DOTCAL RSSIZE,[CHANNO(B),[2000,,A],[2000,,D]] + .LOSE %LSSYS + MOVEM D,LINLN(B) + MOVEM A,PAGLN(B) + JRST OPNWIN + +; MAKE AN IOT + +IOTMAK: HRLZ A,CHANNO(B) ; GET CHANNEL + ROT A,5 + IOR A,[.IOT A] ; BUILD IOT + MOVEM A,IOINS(B) ; AND STORE IT + POPJ P, + + +; HERE IF POSSIBLY OPENING AN ALREADY OPEN TTY + +SAMTYQ: MOVE D,1(E) ; RESTORE CURRENT CHANNEL + MOVE A,DIRECT-1(D) ; GET DIR + MOVE B,DIRECT(D) + PUSHJ P,STRTO6 + POP P,A ; GET SIXBIT + MOVE C,T.SPDL+1(TB) + HRRZ C,S.DIR(C) + CAME A,MODES(C) ; SKIP IF DIFFERENT DIRECTION + JRST TTYLP1 + +; HERE IF A RE-OPEN ON A TTY + + HRRZ 0,FSAV(TB) ; IS IT FROM A FOPEN + CAIN 0,FOPEN + JRST RETOLD ; RET OLD CHANNEL + + PUSH TP,$TCHAN + PUSH TP,1(E) ; PUSH OLD CHANNEL + PUSH TP,$TFIX + PUSH TP,T.CHAN+1(TB) + MOVE A,[PUSHJ P,CHNFIX] + MOVEI PVP,0 ; SAY MIGHT BE NON-ATOMS + PUSHJ P,GCHACK + SUB TP,[4,,4] + +RETOLD: MOVE B,1(E) ; GET CHANNEL + AOS CHANNO-1(B) ; AOS REF COUNT + MOVSI A,TCHAN + SUB P,[1,,1] ; CLEAN UP STACK + JRST OPNRET ; AND LEAVE + + +; ROUTINE TO PASS TO GCHACK TO FIX UP CHANNEL POINTER + +CHNFIX: CAIN C,TCHAN + CAME D,(TP) + POPJ P, + MOVE D,-2(TP) ; GET REPLACEMENT + SKIPE B + MOVEM D,1(B) ; CLOBBER IT AWAY + POPJ P, +] + +IFE ITS,[ + MOVE C,T.SPDL+1(TB) ; POINT TO P BASE + HRRZ 0,S.DIR(C) ; 0/ 0 FOR READ 0/ 1 FOR PRINT + MOVE A,[PUSHJ P,INMTYO] + MOVE B,T.CHAN+1(TB) + MOVEM A,IOINS(B) + MOVEI A,100 ; PRIM INPUT JFN + JUMPN 0,TNXTY1 + MOVEI E,C.OPN+C.READ+C.TTY + HRRM E,-2(B) + MOVEM B,CHNL0+2*100+1 + JRST TNXTY2 +TNXTY1: MOVEM B,CHNL0+2*101+1 + MOVEI A,101 ; PRIM OUTPUT JFN + MOVEI E,C.OPN+C.PRIN+C.TTY + HRRM E,-2(B) +TNXTY2: MOVEM A,CHANNO(B) + JUMPN 0,OPNWIN +] +; SETUP FUNNY BUFFER FOR TTY INPUT DEVICES + +TTYSPC: MOVEI A,EXTBFR ; GET EXTRA BUFFER + PUSHJ P,IBLOCK ; GET BLOCK + MOVE D,T.CHAN+1(TB) ;RESTORE CHANNEL POINTER +IFN ITS,[ + MOVE A,CHANNO(D) + LSH A,23. + IOR A,[.IOT A] + MOVEM A,IOIN2(B) +] +IFE ITS,[ + MOVE A,[PBIN] + MOVEM A,IOIN2(B) +] + MOVSI A,TLIST + MOVEM A,EXBUFR-1(D) ; FOR WAITING TTY BUFFERS + SETZM EXBUFR(D) ; NIL LIST + MOVEM B,BUFRIN(D) ;STORE IN CHANNEL + MOVSI A,TUVEC ;MAKE SURE TYPE IS UNIFORM VECTOR + HLLM A,BUFRIN-1(D) + MOVEI A,177 ;SET ERASER TO RUBOUT + MOVEM A,ERASCH(B) +IFE ITS,[ + MOVEI A,25 + MOVEM A,KILLCH(B) +] +IFN ITS,[ + SETZM KILLCH(B) ;NO KILL CHARACTER NEEDED +] + MOVEI A,33 ;BREAKCHR TO C.R. + MOVEM A,BRKCH(B) + MOVEI A,"\ ;ESCAPER TO \ + MOVEM A,ESCAP(B) + MOVE A,[010700,,BYTPTR(E)] ;RELATIVE BYTE POINTER + MOVEM A,BYTPTR(B) + MOVEI A,14 ;BARF BACK CHARACTER FF + MOVEM A,BRFCHR(B) + MOVEI A,^D + MOVEM A,BRFCH2(B) + +; SETUP DEFAULT TTY INTERRUPT HANDLER + + PUSH TP,$TATOM + PUSH TP,MQUOTE CHAR,CHAR,INTRUP + PUSH TP,$TFIX + PUSH TP,[10] ; PRIORITY OF CHAR INT + PUSH TP,$TCHAN + PUSH TP,D + MCALL 3,EVENT ; 1ST MAKE AN EVENT EXIST + PUSH TP,A + PUSH TP,B + PUSH TP,$TSUBR + PUSH TP,[QUITTER] ; DEFAULT HANDLER IS QUITTER + MCALL 2,HANDLER + +; BUILD A NULL STRING + + MOVEI A,0 + PUSHJ P,IBLOCK ; USE A BLOCK + MOVE D,T.CHAN+1(TB) + MOVEI 0,C.BUF + IORM 0,-2(D) + HRLI B,010700 + SUBI B,1 + MOVSI A,TCHSTR + MOVEM A,BUFSTR-1(D) + MOVEM B,BUFSTR(D) + MOVEI A,0 + MOVE B,D ; CHANNEL TO B + JRST MAKION + + +; ROUTINE TO OPEN ITS CHANNEL WITHOUT .RCHST + +IFN ITS,[ +OPEN2: MOVEI A,S.DIR(C) ; POINT TO OPEN BLOCK + PUSHJ P,MOPEN ; OPEN THE FILE + JRST OPNLOS + MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK + MOVEM A,CHANNO(B) ; SAVE THE CHANNEL + JRST OPEN3 + +; FIX UP MODE AND FALL INTO OPEN + +OPEN0: HRRZ A,S.DIR(C) ; GET DIR + TRNE A,2 ; SKIP IF NOT BLOCK + IORI A,4 ; TURN ON IMAGE + IORI A,2 ; AND BLOCK + + PUSH P,A + PUSH TP,$TPDL + PUSH TP,C ; SAVE CRUFT TO CHECK FOR PRINTO, HA HA + MOVE B,T.CHAN+1(TB) + MOVE A,DIRECT-1(B) + MOVE B,DIRECT(B) ; THIS KLUDGE THE MESS OF NDR + PUSHJ P,STRTO6 + MOVE C,(TP) + POP P,D ; THE SIXBIT FOR KLUDGE + POP P,A ; GET BACK THE RANDOM BITS + SUB TP,[2,,2] + CAME D,[SIXBIT /PRINAO/] + CAMN D,[SIXBIT /PRINTO/] + IORI A,100000 ; WRITEOVER BIT + HRRZ 0,FSAV(TB) + CAIN 0,NFOPEN + IORI A,10 ; DON'T CHANGE REF DATE +OPEN9: HRLM A,S.DIR(C) ; AND STORE IT + +; ROUTINE TO ATTEMPT TO OPEN A REAL ITS CHANNEL + +OPEN1: MOVEI A,S.DIR(C) ; POINT TO OPEN BLOCK + PUSHJ P,MOPEN + JRST OPNLOS + MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK + MOVEM A,CHANNO(B) ; CLOBBER INTO CHANNEL + DOTCAL RFNAME,[A,[2003,,S.DEV],[2003,,S.NM1],[2003,,S.NM2],[2003,,S.SNM]] + JFCL + +; NOW CLOBBER THE TVP SLOT FOR THIS CHANNEL + +OPEN3: MOVE A,S.DIR(C) + MOVEI 0,C.OPN+C.READ + TRNE A,1 + MOVEI 0,C.OPN+C.PRIN + TRNE A,2 + TRO 0,C.BIN + HRRM 0,-2(B) + MOVE A,CHANNO(B) ; GET CHANNEL # + ASH A,1 + ADDI A,CHNL0 ; POINT TO SLOT + MOVEM B,1(A) ; NOT: TYPE ALREADY SETUP + +; NOW GET STATUS WORD + +DOSTAT: HRRZ A,CHANNO(B) ; NOW GET STATUS WORD + DOTCAL STATUS,[A,[2002,,STATUS]] + JFCL + POPJ P, + + +; HERE IF OPEN FAILS (CHANNEL IS IN A) + +OPNLOS: JUMPL A,NOCHAN ; ALL CHANNELS ARE IN USE + LSH A,23. ; DO A .STATUS + IOR A,[.STATUS A] + XCT A ; STATUS TO A + MOVE B,T.CHAN+1(TB) + PUSHJ P,GFALS ; GET A FALSE WITH A MESSAGE + SUB P,[1,,1] ; EXTRA RET ADDR FLUSHED + JRST OPNRET ; AND RETURN +] + +CGFALS: SUBM M,(P) + MOVEI B,0 +IFN ITS, PUSHJ P,GFALS +IFE ITS, PUSHJ P,TGFALS + JRST MPOPJ + +; ROUTINE TO CONS UP FALSE WITH REASON +IFN ITS,[ +GFALS: PUSH TP,$TCHAN + PUSH TP,B + PUSH P,[SIXBIT / ERR/] ; SET UP OPEN TO ERR DEV + PUSH P,[3] ; SAY ITS FOR CHANNEL + PUSH P,A + .OPEN 0,-2(P) ; USE CHANNEL 0 FOR THIS + FATAL CAN'T OPEN ERROR DEVICE + SUB P,[3,,3] ; DONT WANT OPEN BLOCK NOW +IFN FNAMS, PUSH P,A + MOVEI A,0 ; PREPARE TO BUILD STRING ON STACK +EL1: PUSH P,[0] ; WHERE IT WILL GO + MOVSI B,(<440700,,(P)>) ; BYTE POINTER TO TOP OF STACK +EL2: .IOT 0,0 ; GET A CHAR + JUMPL 0,EL3 ; JUMP ON -1,,3 + CAIN 0,3 ; EOF? + JRST EL3 ; YES, MAKE STRING + CAIN 0,14 ; IGNORE FORM FEEDS + JRST EL2 ; IGNORE FF + CAIE 0,15 ; IGNORE CR & LF + CAIN 0,12 + JRST EL2 + IDPB 0,B ; STUFF IT + TLNE B,760000 ; SIP IF WORD FULL + AOJA A,EL2 + AOJA A,EL1 ; COUNT WORD AND GO + +EL3: +IFN FNAMS,[ + SKIPN (P) + SUB P,[1,,1] + PUSH P,A + .CLOSE 0, + PUSHJ P,CHMAK + PUSH TP,A + PUSH TP,B + SKIPN B,-2(TP) + JRST EL4 + MOVEI A,0 + MOVSI B,(<440700,,(P)>) + PUSH P,[0] + IRP XX,,[RDEVIC,RSNAME,RNAME1,RNAME2]YY,,[0,72,73,40] +IFSN YY,0,[ + MOVEI 0,YY + JSP E,1PUSH +] + MOVE E,-2(TP) + MOVE C,XX(E) + HRRZ D,XX-1(E) + JSP E,PUSHIT + TERMIN +] + SKIPN (P) ; ANY CHARS AT END? + SUB P,[1,,1] ; FLUSH XTRA + PUSH P,A ; PUT UP COUNT + .CLOSE 0, ; CLOSE THE ERR DEVICE + PUSHJ P,CHMAK ; MAKE STRING + PUSH TP,A + PUSH TP,B +IFN FNAMS,[ +EL4: POP P,A + PUSH TP,$TFIX + PUSH TP,A] +IFE FNAMS, MOVEI A,1 +IFN FNAMS,[ + MOVEI A,3 + SKIPN B + MOVEI A,2 +] + PUSHJ P,IILIST + MOVSI A,TFALSE ; MAKEIT A FALSE +IFN FNAMS, SUB TP,[2,,2] + POPJ P, + +IFN FNAMS,[ +1PUSH: MOVEI D,0 + JRST PUSHI2 +PUSHI1: PUSH P,[0] + MOVSI B,(<440700,,(P)>) +PUSHIT: SOJL D,(E) + ILDB 0,C +PUSHI2: IDPB 0,B + TLNE B,760000 + AOJA A,PUSHIT + AOJA A,PUSHI1 +] +] + + +; ROUTINE TO FILL IN THE "REAL" SLOTS FOR THE CHANNEL + +FIXREA: +IFE ITS, HRLZS S.DEV(C) ; KILL MODE BITS + MOVE D,[-4,,S.DEV] + +FIXRE1: MOVEI A,(D) ; COPY REL POINTER + ADD A,T.SPDL+1(TB) ; POINT TO SLOT + SKIPN A,(A) ; SKIP IF GOODIE THERE + JRST FIXRE2 + PUSHJ P,6TOCHS ; MAKE INOT A STRING + MOVE C,RDTBL-S.DEV(D); GET OFFSET + ADD C,T.CHAN+1(TB) + MOVEM A,-1(C) + MOVEM B,(C) +FIXRE2: AOBJN D,FIXRE1 + POPJ P, + +IFN ITS,[ +DOOPN: HRLZ A,A + HRR A,CHANNO(B) ; GET CHANNEL + DOTCAL OPEN,[A,-3(P),-2(P),-1(P),(P)] + SKIPA + AOS -1(P) + POPJ P, +] + +;THIS ROUTINE CONVERTS MUDDLE CHARACTER STRINGS TO SIXBIT FILE NAMES +STRTO6: PUSH TP,A + PUSH TP,B + PUSH P,E ;SAVE USEFUL FROB + MOVEI E,(A) ; CHAR COUNT TO E + GETYP A,A + CAIE A,TCHSTR ; IS IT ONE WORD? + JRST WRONGT ;NO + CAILE E,6 ; SKIP IF L=? 6 CHARS + MOVEI E,6 +CHREAD: MOVEI A,0 ;INITIALIZE OUTPUT WORD + MOVE D,[440600,,A] ;AND BYTE POINTER TO IT +NEXCHR: SOJL E,SIXDON + ILDB 0,B ; GET NEXT CHAR + CAIN 0,^Q ; CNTL-Q, QUOTES NEXT CHAR + JRST NEXCHR + JUMPE 0,SIXDON ;IF NULL, WE ARE FINISHED + PUSHJ P,A0TO6 ; CONVERT TO SIXBIT + IDPB 0,D ;DEPOSIT INTO SIX BIT + JRST NEXCHR ; NO, GET NEXT +SIXDON: SUB TP,[2,,2] ;FIX UP TP + POP P,E + EXCH A,(P) ;LEAVE RESULT ON P-STACK + JRST (A) ;NOW RETURN + + +;SUBROUTINE TO CONVERT SIXBIT TO ATOM + +6TOCHS: PUSH P,E + PUSH P,D + MOVEI B,0 ;MAX NUMBER OF CHARACTERS + PUSH P,[0] ;STRING WILL GO ON P SATCK + JUMPE A,GETATM ; EMPTY, LEAVE + MOVEI E,-1(P) ;WILL BE BYTE POINTER + HRLI E,10700 ;SET IT UP + PUSH P,[0] ;SECOND POSSIBLE WORD + MOVE D,[440600,,A] ;INPUT BYTE POINTER +6LOOP: ILDB 0,D ;START CHAR GOBBLING + ADDI 0,40 ;CHANGET TOASCII + IDPB 0,E ;AND STORE IT + TLNN D,770000 ; SKIP IF NOT DONE + JRST 6LOOP1 + TDNN A,MSKS(B) ; CHECK IF JUST SPACES LEFT + AOJA B,GETATM ; YES, DONE + AOJA B,6LOOP ;KEEP LOOKING +6LOOP1: PUSH P,[6] ;IF ARRIVE HERE, STRING IS 2 WORDS + JRST .+2 +GETATM: MOVEM B,(P) ;SET STRING LENGTH=1 + PUSHJ P,CHMAK ;MAKE A MUDDLE STRING + POP P,D + POP P,E + POPJ P, + +MSKS: 7777,,-1 + 77,,-1 + ,,-1 + 7777 + 77 + + +; CONVERT ONE CHAR + +A0TO6: CAIL 0,141 ;IF IT IS GREATER OR EQUAL TO LOWER A + CAILE 0,172 ;BUT LESS THAN OR EQUAL TO LOWER Z + JRST .+2 ;THEN + SUBI 0,40 ;CONVERT TO UPPER CASE + SUBI 0,40 ;NOW TO SIX BIT + JUMPL 0,BAD6 ;CHECK FOR A WINNER + CAILE 0,77 + JRST BAD6 + POPJ P, + +; SUBR TO TEST THE EXISTENCE OF FILES + +MFUNCTION FEXIST,SUBR,[FILE-EXISTS?] + + ENTRY + + JUMPGE AB,TFA + PUSH TP,$TPDL + PUSH TP,P ; SAVE P-STACK BASE + ADD TP,[2,,2] + MOVSI E,-4 ; 4 THINGS TO PUSH +EXIST: +IFN ITS, MOVE B,@RNMTBL(E) +IFE ITS, MOVE B,@FETBL(E) + PUSH P,E + PUSHJ P,IDVAL1 + POP P,E + GETYP 0,A + CAIE 0,TCHSTR ; SKIP IF WINS + JRST EXIST1 + +IFN ITS, PUSHJ P,STRTO6 ; CONVERT TO SIXBIT +IFE ITS,[ +; PUSH P,E +; PUSHJ P,ADDNUL ; NOT NEEDED, SINCE CONSED INTO ONE STRING-TAA +; POP P,E + PUSH TP,A ; DEFAULT TYPE AND VALUE GIVEN BY USER + PUSH TP,B ; IN VALUE OF DEV, SNM, NM1, NM2 + ] +IFN ITS, JRST .+2 +IFE ITS, JRST .+3 + +EXIST1: +IFN ITS, PUSH P,EXISTS(E) ; USE DEFAULT +IFE ITS,[ + PUSH TP,FETYP(E) ; DEFAULT TYPE AND VALUE IF NO + PUSH TP,FEVAL(E) ; DEFAULT GIVEN BY USER + ] + AOBJN E,EXIST + + PUSHJ P,RGPRS ; PARSE THE ARGS + JRST TMA ; TOO MANY ARGUMENTS + +IFN ITS,[ + MOVE 0,-3(P) ; GET SIXBIT DEV NAME + MOVEI B,0 + CAMN 0,[SIXBITS /DSK /] + MOVSI B,10 ; DONT SET REF DATE IF DISK DEV + .IOPUSH + DOTCAL OPEN,[B,[17,,-3],[17,,-2],[17,,-1],[17,,0]] + JRST .+3 + .IOPOP + JRST FDLWON ; WON!!! + .STATUS 0,A ; FIND THE STATUS OF CHANNEL BEFORE POPING + .IOPOP + JRST FDLST1] + +IFE ITS,[ + MOVE B,TB + SUBI B,10 ; GET B TO POINT CORRECTLY TO ARGS + PUSHJ P,STSTK ; GET FILE NAME IN A STRING + HRROI B,1(E) ; POINT B TO THE STRING + MOVSI A,100001 + GTJFN + JRST TDLLOS ; FILE DOES NOT EXIST + RLJFN ; FILE EXIST SO RETURN JFN + JFCL + JRST FDLWON ; SUCCESS + ] + +IFN ITS,[ +EXISTS: SIXBITS /DSK INPUT > / + ] +IFE ITS,[ +FETBL: SETZ IMQUOTE NM1 + SETZ IMQUOTE NM2 + SETZ IMQUOTE DEV + SETZ IMQUOTE SNM + +FETYP: TCHSTR,,5 + TCHSTR,,3 + TCHSTR,,3 + TCHSTR,,0 + +FEVAL: 440700,,[ASCIZ /INPUT/] + 440700,,[ASCIZ /MUD/] + 440700,,[ASCIZ /DSK/] + 0 + ] + +; SUBR TO DELETE AND RENAME FILES + +MFUNCTION RENAME,SUBR + + ENTRY + + JUMPGE AB,TFA + PUSH TP,$TPDL + PUSH TP,P ; SAVE P-STACK BASE + GETYP 0,(AB) ; GET 1ST ARG TYPE +IFN ITS,[ + CAIN 0,TCHAN ; CHANNEL? + JRST CHNRNM ; MUST BE RENAME WHILE OPEN FOR WRITING +] +IFE ITS,[ + PUSH P,[100000,,-2] + PUSH P,[377777,,377777] +] + MOVSI E,-4 ; 4 THINGS TO PUSH +RNMALP: MOVE B,@RNMTBL(E) + PUSH P,E + PUSHJ P,IDVAL1 + POP P,E + GETYP 0,A + CAIE 0,TCHSTR ; SKIP IF WINS + JRST RNMLP1 + +IFN ITS, PUSHJ P,STRTO6 ; CONVERT TO SIXBIT +IFE ITS,[ + PUSH P,E + PUSHJ P,ADDNUL + EXCH B,(P) + MOVE E,B +] + JRST .+2 + +RNMLP1: PUSH P,RNSTBL(E) ; USE DEFAULT + AOBJN E,RNMALP + +IFN ITS,[ + PUSHJ P,RGPRS ; PARSE THE ARGS + JRST RNM1 ; COULD BE A RENAME + +; HERE TO DELETE A FILE + +DELFIL: MOVE A,(P) ; AND GET SNAME + .SUSET [.SSNAM,,A] + DOTCAL DELETE,[[17,,-3],[17,,-2],[17,,-1],[17,,0]] + JRST FDLST ; ANALYSE ERROR + +FDLWON: MOVSI A,TATOM + MOVE B,IMQUOTE T + JRST FINIS +] +IFE ITS,[ + MOVE A,(AB) + MOVE B,1(AB) + PUSHJ P,ADDNUL + MOVE A,(TP) ; GET BASE OF PDL + MOVEI A,1(A) ; POINT TO CRAP + CAMGE AB,[-3,,] ; SKIP IF DELETE + HLLZS (A) ; RESET DEFAULT + PUSH P,[0] + PUSH P,[0] + PUSH P,[0] + GTJFN ; GET A JFN + JRST TDLLOS ; LOST + ADD AB,[2,,2] ; PAST ARG + MOVEM AB,ABSAV(TB) + JUMPL AB,RNM1 ; GO TRY FOR RENAME + MOVE P,(TP) ; RESTORE P STACK + MOVEI C,(A) ; FOR RELEASE + DELF ; ATTEMPT DELETE + JRST DELLOS ; LOSER + RLJFN ; MAKE SURE FLUSHED + JFCL + +FDLWON: MOVSI A,TATOM + MOVE B,IMQUOTE T + JRST FINIS + +RNMLOS: PUSH P,A + MOVEI A,(B) + RLJFN + JFCL +DELLO1: MOVEI A,(C) + RLJFN + JFCL + POP P,A ; ERR NUMBER BACK +TDLLOS: MOVEI B,0 + PUSHJ P,TGFALS ; GET FALSE WITH REASON + JRST FINIS + +DELLOS: PUSH P,A ; SAVE ERROR + JRST DELLO1 +] + +;TABLE OF REANMAE DEFAULTS +IFN ITS,[ +RNMTBL: IMQUOTE DEV + IMQUOTE NM1 + IMQUOTE NM2 + IMQUOTE SNM + +RNSTBL: SIXBIT /DSK _MUDS_> / +] +IFE ITS,[ +RNMTBL: SETZ IMQUOTE DEV + SETZ IMQUOTE SNM + SETZ IMQUOTE NM1 + SETZ IMQUOTE NM2 + +RNSTBL: -1,,[ASCIZ /DSK/] + 0 + -1,,[ASCIZ /_MUDS_/] + -1,,[ASCIZ /MUD/] +] +; HERE TO DO A RENAME + +RNM1: JUMPGE AB,TMA ; IF ARGS EXHAUSTED, MUST BE TOO MUCH STRING + GETYP 0,(AB) + MOVE C,1(AB) ; GET ARG + CAIN 0,TATOM ; IS IT "TO" + CAME C,IMQUOTE TO + JRST WRONGT ; NO, LOSE + ADD AB,[2,,2] ; BUMP PAST "TO" + MOVEM AB,ABSAV(TB) + JUMPGE AB,TFA +IFN ITS,[ + MOVEM P,T.SPDL+1(TB) ; SAVE NEW P-BASE + + MOVEI 0,4 ; FOUR DEFAULTS + PUSH P,-3(P) ; DEFAULT DEVICE IS CURRENT + SOJN 0,.-1 + + PUSHJ P,RGPRS ; PARSE THE NEXT STRING + JRST TMA + + MOVE A,-7(P) ; FIX AND GET DEV1 + MOVE B,-3(P) ; SAME FOR DEV2 + CAME A,B ; SAME? + JRST DEVDIF + + POP P,A ; GET SNAME 2 + CAME A,(P)-3 ; SNAME 1 + JRST DEVDIF + .SUSET [.SSNAM,,A] + POP P,-2(P) ; MOVE NAMES DOWN + POP P,-2(P) + DOTCAL RENAME,[[17,,-4],[17,,-3],[17,,-2],A,[17,,-1],(P)] + JRST FDLST + JRST FDLWON + +; HERE FOR RENAME WHILE OPEN FOR WRITING + +CHNRNM: ADD AB,[2,,2] ; NEXT ARG + MOVEM AB,ABSAV(TB) + JUMPGE AB,TFA + MOVE B,-1(AB) ; GET CHANNEL + SKIPN CHANNO(B) ; SKIP IF OPEN + JRST BADCHN + MOVE A,DIRECT-1(B) ; CHECK DIRECTION + MOVE B,DIRECT(B) + PUSHJ P,STRTO6 ; TO 6 BIT + POP P,A + CAME A,[SIXBIT /PRINT/] + CAMN A,[SIXBIT /PRINTB/] + JRST CHNRN1 + CAMN A,[SIXBIT /PRINAO/] + JRST CHNRN1 + CAME A,[SIXBIT /PRINTO/] + JRST WRONGD + +; SET UP .FDELE BLOCK + +CHNRN1: PUSH P,[0] + PUSH P,[0] + MOVEM P,T.SPDL+1(TB) + PUSH P,[0] + PUSH P,[SIXBIT /_MUDL_/] + PUSH P,[SIXBIT />/] + PUSH P,[0] + + PUSHJ P,RGPRS ; PARSE THESE + JRST TMA + + SUB P,[1,,1] ; SNAME/DEV IGNORED + MOVE AB,ABSAV(TB) ; GET ORIG ARG POINTER + MOVE B,1(AB) + MOVE A,CHANNO(B) ; ITS CHANNEL # + DOTCAL RENMWO,[A,[17,,-1],(P)] + JRST FDLST + MOVE A,CHANNO(B) ; ITS CHANNEL # + DOTCAL RFNAME,[A,[2017,,-4],[2017,,-3],[2017,,-2],[2017,,-1]] + JFCL + MOVE A,-3(P) ; UPDATE CHANNEL + PUSHJ P,6TOCHS ; GET A STRING + MOVE C,1(AB) + MOVEM A,RNAME1-1(C) + MOVEM B,RNAME1(C) + MOVE A,-2(P) + PUSHJ P,6TOCHS + MOVE C,1(AB) + MOVEM A,RNAME2-1(C) + MOVEM B,RNAME2(C) + MOVE B,1(AB) + MOVSI A,TCHAN + JRST FINIS +] +IFE ITS,[ + PUSH P,A + MOVE A,(AB) + MOVE B,1(AB) + PUSHJ P,ADDNUL + MOVE A,(TP) ; PBASE BACK + PUSH A,[400000,,0] + MOVEI A,(A) + GTJFN + JRST TDLLOS + POP P,B + EXCH A,B + MOVEI C,(A) ; FOR RELEASE ATTEMPT + RNAMF + JRST RNMLOS + MOVEI A,(B) + RLJFN ; FLUSH JFN + JFCL + MOVEI A,(C) ; MAKE SURR OTHER IS FLUSHED + RLJFN + JFCL + JRST FDLWON + + +ADDNUL: PUSH TP,A + PUSH TP,B + MOVEI A,(A) ; LNTH OF STRING + IDIVI A,5 + JUMPN B,NONUAD ; DONT NEED TO ADD ONE + + PUSH TP,$TCHRS + PUSH TP,[0] + MOVEI A,2 + PUSHJ P,CISTNG ; COPY OF STRING + POPJ P, + +NONUAD: POP TP,B + POP TP,A + POPJ P, +] +; HERE FOR LOSING .FDELE + +IFN ITS,[ +FDLST: .STATUS 0,A ; GET STATUS +FDLST1: MOVEI B,0 + PUSHJ P,GFALS ; ANALYZE IT + JRST FINIS +] + +; SOME .FDELE ERRORS + +DEVDIF: ERRUUO EQUOTE DEVICE-OR-SNAME-DIFFERS + + ; HERE TO RESET A READ CHANNEL + +MFUNCTION FRESET,SUBR,RESET + + ENTRY 1 + GETYP A,(AB) + CAIE A,TCHAN + JRST WTYP1 + MOVE B,1(AB) ;GET CHANNEL + SKIPN IOINS(B) ; OPEN? + JRST REOPE1 ; NO, IGNORE CHECKS +IFN ITS,[ + MOVE A,STATUS(B) ;GET STATUS + ANDI A,77 + JUMPE A,REOPE1 ;IF IT CLOSED, JUST REOPEN IT, MAYBE? + CAILE A,2 ;SKIPS IF TTY FLAVOR + JRST REOPEN +] +IFE ITS,[ + MOVE A,CHANNO(B) + CAIE A,100 ; TTY-IN + CAIN A,101 ; TTY-OUT + JRST .+2 + JRST REOPEN +] + CAME B,TTICHN+1 + CAMN B,TTOCHN+1 + JRST REATTY +REATT1: MOVEI B,DIRECT-1(B) ;POINT TO DIRECTION + PUSHJ P,CHRWRD ;CONVERT TO A WORD + JFCL + CAME B,[ASCII /READ/] + JRST TTYOPN + MOVE B,1(AB) ;RESTORE CHANNEL + PUSHJ P,RRESET" ;DO REAL RESET + JRST TTYOPN + +REOPEN: PUSH TP,(AB) ;FIRST CLOSE IT + PUSH TP,(AB)+1 + MCALL 1,FCLOSE + MOVE B,1(AB) ;RESTORE CHANNEL + +; SET UP TEMPS FOR OPNCH + +REOPE1: PUSH P,[0] ; WILL HOLD DIR CODE + PUSH TP,$TPDL + PUSH TP,P + IRP A,,[DIRECT,RNAME1,RNAME2,RDEVIC,RSNAME,ACCESS] + PUSH TP,A-1(B) + PUSH TP,A(B) + TERMIN + + PUSH TP,$TCHAN + PUSH TP,1(AB) + + MOVE A,T.DIR(TB) + MOVE B,T.DIR+1(TB) ; GET DIRECTION + PUSHJ P,CHMOD ; CHECK THE MODE + MOVEM A,(P) ; AND STORE IT + +; NOW SET UP OPEN BLOCK IN SIXBIT + +IFN ITS,[ + MOVSI E,-4 ; AOBN PNTR +FRESE2: MOVE B,T.CHAN+1(TB) + MOVEI A,@RDTBL(E) ; GET ITEM POINTER + GETYP 0,-1(A) ; GET ITS TYPE + CAIE 0,TCHSTR + JRST FRESE1 + MOVE B,(A) ; GET STRING + MOVE A,-1(A) + PUSHJ P,STRTO6 +FRESE3: AOBJN E,FRESE2 +] +IFE ITS,[ + MOVE B,T.CHAN+1(TB) + MOVE A,RDEVIC-1(B) + MOVE B,RDEVIC(B) + PUSHJ P,STRTO6 ; RESULT ON STACK + HLRZS (P) +] + + PUSH P,[0] ; PUSH UP SOME DUMMIES + PUSH P,[0] + PUSH P,[0] + PUSHJ P,OPNCH ; ATTEMPT TO DO THEOPEN + GETYP 0,A + CAIE 0,TCHAN + JRST FINIS ; LEAVE IF FALSE OR WHATEVER + +DRESET: MOVE A,(AB) + MOVE B,1(AB) + SETZM CHRPOS(B) ;INITIALIZE THESE PARAMETERS + SETZM LINPOS(B) + SETZM ACCESS(B) + JRST FINIS + +TTYOPN: +IFN ITS,[ + MOVE B,1(AB) + CAME B,TTOCHN+1 + CAMN B,TTICHN+1 + PUSHJ P,TTYOP2 + PUSHJ P,DOSTAT + DOTCAL RSSIZE,[CHANNO(B),[2000,,C],[2000,,D]] + .LOSE %LSSYS + MOVEM C,PAGLN(B) + MOVEM D,LINLN(B) +] + JRST DRESET + +IFN ITS,[ +FRESE1: CAIE 0,TFIX + JRST BADCHN + PUSH P,(A) + JRST FRESE3 +] + +; INTERFACE TO REOPEN CLOSED CHANNELS + +OPNCHN: PUSH TP,$TCHAN + PUSH TP,B + MCALL 1,FRESET + POPJ P, + +REATTY: PUSHJ P,TTYOP2 +IFE ITS, SKIPN DEMFLG ; SKIP IF DEMONFLAG IS ON + SKIPE NOTTY + JRST DRESET + MOVE B,1(AB) + JRST REATT1 + +; FUNCTION TO LIST ALL CHANNELS + +MFUNCTION CHANLIST,SUBR + + ENTRY 0 + + MOVEI A,N.CHNS-1 ;MAX # OF REAL CHANNELS + MOVEI C,0 + MOVEI B,CHNL1 ;POINT TO FIRST REAL CHANNEL + +CHNLP: SKIPN 1(B) ;OPEN? + JRST NXTCHN ;NO, SKIP + HRRE E,(B) ; ABOUT TO FLUSH? + JUMPL E,NXTCHN ; YES, FORGET IT + MOVE D,1(B) ; GET CHANNEL + HRRZ E,CHANNO-1(D) ; GET REF COUNT + PUSH TP,(B) + PUSH TP,1(B) + ADDI C,1 ;COUNT WINNERS + SOJGE E,.-3 ; COUNT THEM +NXTCHN: ADDI B,2 + SOJN A,CHNLP + + SKIPN B,CHNL0+1 ;NOW HACK LIST OF PSUEDO CHANNELS + JRST MAKLST +CHNLS: PUSH TP,(B) + PUSH TP,(B)+1 + ADDI C,1 + HRRZ B,(B) + JUMPN B,CHNLS + +MAKLST: ACALL C,LIST + JRST FINIS + + ; ROUTINE TO RESTORE A CLOSED CHANNEL TO ITS PREVIOUS STATE + + +REOPN: PUSH TP,$TCHAN + PUSH TP,B + SKIPN CHANNO(B) ; ONLY REAL CHANNELS + JRST PSUEDO + +IFN ITS,[ + MOVSI E,-4 ; SET UP POINTER FOR NAMES + +GETOPB: MOVE B,(TP) ; GET CHANNEL + MOVEI A,@RDTBL(E) ; GET POINTER + MOVE B,(A) ; NOW STRING + MOVE A,-1(A) + PUSHJ P,STRTO6 ; LEAVES SIXBIT ON STACK + AOBJN E,GETOPB +] +IFE ITS,[ + MOVE A,RDEVIC-1(B) + MOVE B,RDEVIC(B) + PUSHJ P,STRTO6 ; GET DEV NAME IN SIXBIT +] + MOVE B,(TP) ; RESTORE CHANNEL + MOVE A,DIRECT-1(B) + MOVE B,DIRECT(B) + PUSHJ P,CHMOD ; CHECK FOR A VALID MODE + +IFN ITS, MOVE E,-3(P) ; GET DEVICE IN PROPER PLACE +IFE ITS, HLRZS E,(P) + MOVE B,(TP) ; RESTORE CHANNEL +IFN ITS, CAMN E,[SIXBIT /DSK /] +IFE ITS,[ + CAIE E,(SIXBIT /PS /) + CAIN E,(SIXBIT /DSK/) + JRST DISKH ; DISK WINS IMMEIDATELY + CAIE E,(SIXBIT /SS /) + CAIN E,(SIXBIT /SRC/) + JRST DISKH ; DISK WINS IMMEIDATELY +] +IFN ITS, CAMN E,[SIXBIT /TTY /] ; NO NEED TO RE-OPEN THE TTY +IFE ITS, CAIN E,(SIXBIT /TTY/) + JRST REOPD1 +IFN ITS,[ + AND E,[777700,,0] ; COULD BE "UTn" + MOVE D,CHANNO(B) ; GET CHANNEL + ASH D,1 + ADDI D,CHNL0 ; DON'T SEEM TO BE OPEN + SETZM 1(D) + SETZM CHANNO(B) + CAMN E,[SIXBIT /UT /] + JRST REOPD ; CURRENTLY, CANT RESTORE UTAPE CHANNLES + CAMN E,[SIXBIT /AI /] + JRST REOPD ; CURRENTLY CANT RESTORE AI CHANNELS + CAMN E,[SIXBIT /ML /] + JRST REOPD ; CURRENTLY CANT RESTORE ML CHANNELS + CAMN E,[SIXBIT /DM /] + JRST REOPD ; CURRENTLY CANT RESTORE DM CHANNELS +] + PUSH TP,$TCHAN ; TRY TO RESET IT + PUSH TP,B + MCALL 1,FRESET + +IFN ITS,[ +REOPD1: AOS -4(P) +REOPD: SUB P,[4,,4] +] +IFE ITS,[ +REOPD1: AOS -1(P) +REOPD: SUB P,[1,,1] +] +REOPD0: SUB TP,[2,,2] + POPJ P, + +IFN ITS,[ +DISKH: MOVE C,(P) ; SNAME + .SUSET [.SSNAM,,C] +] +IFE ITS,[ +DISKH: MOVEM A,(P) ; SAVE MODE WORD + PUSHJ P,STSTK ; STRING TO STACK + MOVE A,(E) ; RESTORE MODE WORD + PUSH TP,$TPDL + PUSH TP,E ; SAVE PDL BASE + MOVE B,-2(TP) ; CHANNEL BACK TO B +] + MOVE C,ACCESS(B) ; GET CHANNELS ACCESS + TRNN A,2 ; SKIP IF NOT ASCII CHANNEL + JRST DISKH1 + HRRZ D,ACCESS-1(B) ; IF PARTIAL WORD OUT + IMULI C,5 ; TO CHAR ACCESS + JUMPE D,DISKH1 ; NO SWEAT + ADDI C,(D) + SUBI C,5 +DISKH1: HRRZ D,BUFSTR-1(B) ; ANY CHARS IN MUDDLE BUFFER + JUMPE D,DISKH2 + TRNN A,1 ; SKIP IF OUTPUT CHANNEL + JRST DISKH2 + PUSH P,A + PUSH P,C + MOVEI C,BUFSTR-1(B) + PUSHJ P,BYTDOP ; FIND LENGTH OF WHOLE BUFFER + HLRZ D,(A) ; LENGTH + 2 TO D + SUBI D,2 + IMULI D,5 ; TO CHARS + SUB D,BUFSTR-1(B) + POP P,C + POP P,A +DISKH2: SUBI C,(D) ; UPDATE CHAR ACCESS + IDIVI C,5 ; BACK TO WORD ACCESS +IFN ITS,[ + IORI A,6 ; BLOCK IMAGE + TRNE A,1 + IORI A,100000 ; WRITE OVER BIT + PUSHJ P,DOOPN + JRST REOPD + MOVE A,C ; ACCESS TO A + PUSHJ P,GETFLN ; CHECK LENGTH + CAIGE 0,(A) ; CHECK BOUNDS + JRST .+3 ; COMPLAIN + PUSHJ P,DOACCS ; AND ACESS + JRST REOPD1 ; SUCCESS + + MOVE A,CHANNO(B) ; CLOSE THE G.D. CHANNEL + PUSHJ P,MCLOSE + JRST REOPD + +DOACCS: PUSH P,A + HRRZ A,CHANNO(B) + DOTCAL ACCESS,[A,(P)] + JFCL + POP P,A + POPJ P, + +DOIOTO: +DOIOTI: +DOIOT: + PUSH P,0 + MOVSI 0,TCHAN + MOVE PVP,PVSTOR+1 + MOVEM 0,BSTO(PVP) ; IN CASE OF INTERRUPT + ENABLE + HRRZ 0,CHANNO(B) + DOTCAL IOT,[0,A] + JFCL + DISABLE + MOVE PVP,PVSTOR+1 + SETZM BSTO(PVP) + POP P,0 + POPJ P, + +GETFLN: MOVE 0,CHANNO(B) ; GET CHANNEL + .CALL FILBLK ; READ LNTH + .VALUE + POPJ P, + +FILBLK: SETZ + SIXBIT /FILLEN/ + 0 + 402000,,0 ; STUFF RESULT IN 0 +] +IFE ITS,[ + MOVEI A,CHNL0 + ADD A,CHANNO(B) + ADD A,CHANNO(B) + SETZM 1(A) ; MAY GET A DIFFERENT JFN + HRROI B,1(E) ; TENEX STRING POINTER + MOVSI A,400001 ; MAKE SURE + GTJFN ; GO GET IT + JRST RGTJL ; COMPLAIN + MOVE D,-2(TP) + HRRZM A,CHANNO(D) ; COULD HAVE CHANGED + MOVE P,(TP) ; RESTORE P + MOVEI B,CHNL0 + ASH A,1 ; MUNG ITS SLOT + ADDI A,(B) + MOVEM D,1(A) + HLLOS (A) ; MARK CHANNEL NOT TO BE RELOOKED AT + MOVE A,(P) ; MODE WORD BACK + MOVE B,[440000,,200000] ; FLAG BITS + TRNE A,1 ; SKIP FOR INPUT + TRC B,300000 ; CHANGE TO WRITE + MOVE A,CHANNO(D) ; GET JFN + OPENF + JRST ROPFLS + MOVE E,C ; LENGTH TO E + SIZEF ; GET CURRENT LENGTH + JRST ROPFLS + CAMGE B,E ; STILL A WINNER + JRST ROPFLS + MOVE A,CHANNO(D) ; JFN + MOVE B,C + SFPTR + JRST ROPFLS + SUB TP,[2,,2] ; FLUSH PDL POINTER + JRST REOPD1 + +ROPFLS: MOVE A,-2(TP) + MOVE A,CHANNO(A) + CLOSF ; ATTEMPT TO CLOSE + JFCL ; IGNORE FAILURE + SKIPA + +RGTJL: MOVE P,(TP) + SUB TP,[2,,2] + JRST REOPD + +DOACCS: PUSH P,B + EXCH A,B + MOVE A,CHANNO(A) + SFPTR + JRST ACCFAI + POP P,B + POPJ P, +] +PSUEDO: AOS (P) ; ASSUME SUCCESS FOR NOW + MOVEI B,RDEVIC-1(B) ; SEE WHAT DEVICE IS + PUSHJ P,CHRWRD + JFCL + JRST REOPD0 ; NO, RETURN HAPPY +IFN 0,[ CAME B,[ASCII /E&S/] ; DISPLAY ? + CAMN B,[ASCII /DIS/] + SKIPA B,(TP) ; YES, REGOBBLE CHANNEL AND CONTINUE + JRST REOPD0 ; NO, RETURN HAPPY + PUSHJ P,DISROP + SOS (P) ; DISPLAY DID NOT REOPEN, UNDO ASSUMPTION OF SUCCESS + JRST REOPD0] + + ;THIS PROGRAM CLOSES THE SPECIFIED CHANNEL + +MFUNCTION FCLOSE,SUBR,[CLOSE] + + ENTRY 1 ;ONLY ONE ARG + GETYP A,(AB) ;CHECK ARGS + CAIE A,TCHAN ;IS IT A CHANNEL + JRST WTYP1 + MOVE B,1(AB) ;PICK UP THE CHANNEL + HRRZ A,CHANNO-1(B) ; GET REF COUNT + SOJGE A,CFIN5 ; NOT READY TO REALLY CLOSE + CAME B,TTICHN+1 ; CHECK FOR TTY + CAMN B,TTOCHN+1 + JRST CLSTTY + MOVE A,[JRST CHNCLS] + MOVEM A,IOINS(B) ;CLOBBER THE IO INS + MOVE A,RDEVIC-1(B) ;GET THE NAME OF THE DEVICE + MOVE B,RDEVIC(B) + PUSHJ P,STRTO6 +IFN ITS, MOVE A,(P) +IFE ITS, HLRZS A,(P) + MOVE B,1(AB) ; RESTORE CHANNEL +IFN 0,[ + CAME A,[SIXBIT /E&S /] + CAMN A,[SIXBIT /DIS /] + PUSHJ P,DISCLS] + MOVE B,1(AB) ; IN CASE CLOBBERED BY DISCLS + SKIPN A,CHANNO(B) ;ANY REAL CHANNEL? + JRST REMOV ; NO, EITHER CLOSED OR PSEUDO CHANNEL + + MOVE A,DIRECT-1(B) ; POINT TO DIRECTION + MOVE B,DIRECT(B) + PUSHJ P,STRTO6 ; CONVERT TO WORD + POP P,A +IFN ITS, LDB E,[360600,,(P)] ; FIRST CHAR OD DEV NAME +IFE ITS, LDB E,[140600,,(P)] ; FIRST CHAR OD DEV NAME + CAIE E,'T ; SKIP IF TTY + JRST CFIN4 + CAME A,[SIXBIT /READ/] ; SKIP IF WINNER + JRST CFIN1 +IFN ITS,[ + MOVE B,1(AB) ; IN ITS CHECK STATUS + LDB A,[600,,STATUS(B)] + CAILE A,2 + JRST CFIN1 +] + PUSH TP,$TCHSTR + PUSH TP,CHQUOTE CHAR + PUSH TP,(AB) + PUSH TP,1(AB) + MCALL 2,OFF ; TURN OFF INTERRUPT +CFIN1: MOVE B,1(AB) + MOVE A,CHANNO(B) +IFN ITS,[ + PUSHJ P,MCLOSE +] +IFE ITS,[ + TLZ A,400000 ; FOR JFN RELEASE + CLOSF ; CLOSE THE FILE AND RELEASE THE JFN + JFCL + MOVE A,CHANNO(B) +] +CFIN: LSH A,1 + ADDI A,CHNL0+1 ;POINT TO THIS CHANNELS LSOT + SETZM CHANNO(B) + SETZM (A) ;AND CLOBBER IT + HLLZS BUFSTR-1(B) + SETZM BUFSTR(B) + HLLZS ACCESS-1(B) +CFIN2: HLLZS -2(B) + MOVSI A,TCHAN ;RETURN THE CHANNEL + JRST FINIS + +CLSTTY: ERRUUO EQUOTE ATTEMPT-TO-CLOSE-TTY-CHANNEL + + +REMOV: MOVEI D,CHNL0+1 ;ATTEMPT TO REMOVE FROM PSUEDO CHANNEL LIST +REMOV0: SKIPN C,D ;FOUND ON LIST ? + JRST CFIN2 ;NO, JUST IGNORE THIS CLOSED CHANNEL + HRRZ D,(C) ;GET POINTER TO NEXT + CAME B,(D)+1 ;FOUND ? + JRST REMOV0 + HRRZ D,(D) ;YES, SPLICE IT OUT + HRRM D,(C) + JRST CFIN2 + + +; CLOSE UP ANY LEFTOVER BUFFERS + +CFIN4: +; CAME A,[SIXBIT /PRINTO/] +; CAMN A,[SIXBIT /PRINTB/] +; JRST .+3 +; CAME A,[SIXBIT /PRINT/] +; JRST CFIN1 + MOVE B,1(AB) ; GET CHANNEL + HRRZ A,-2(B) ;GET MODE BITS + TRNN A,C.PRIN + JRST CFIN1 + GETYP 0,BUFSTR-1(B) ; IS THERE AN OUTPUT BUFFER + SKIPN BUFSTR(B) + JRST CFIN1 + CAIE 0,TCHSTR + JRST CFINX1 + PUSHJ P,BFCLOS +IFE ITS,[ + MOVE A,CHANNO(B) + MOVEI B,7 + SFBSZ + JFCL + CLOSF + JFCL +] + HLLZS BUFSTR-1(B) + SETZM BUFSTR(B) +CFINX1: HLLZS ACCESS-1(B) + JRST CFIN1 + +CFIN5: HRRM A,CHANNO-1(B) + JRST CFIN2 + ;SUBR TO DO .ACCESS ON A READ CHANNEL +;FORM: +;POSITIONS CHANNEL AT CHARACTER POSN FIX-NUMBER +;H. BRODIE 7/26/72 + +MFUNCTION MACCESS,SUBR,[ACCESS] + ENTRY 2 ;ARGS: CHANNEL AND FIX-NUMBER + +;CHECK ARGUMENT TYPES + GETYP A,(AB) + CAIE A,TCHAN ;FIRST ARG SHOULD BE CHANNEL + JRST WTYP1 + GETYP A,2(AB) ;TYPE OF SECOND + CAIE A,TFIX ;SHOULD BE FIX + JRST WTYP2 + +;CHECK DIRECTION OF CHANNEL + MOVE B,1(AB) ;B GETS PNTR TO CHANNEL +; MOVEI B,DIRECT-1(B) ;GET DIRECTION OF CHANNEL +; PUSHJ P,CHRWRD ;GRAB THE CHAR STRNG +; JFCL +; CAME B,[+1] + HRRZ A,-2(B) ; GET MODE BITS + TRNN A,C.PRIN + JRST MACCA + MOVE B,1(AB) + SKIPE C,BUFSTR(B) ;SEE IF WE MUST FLUSH PART BUFFER + PUSHJ P,BFCLOS + JRST MACC +MACCA: +; CAMN B,[ASCIZ /READ/] +; JRST .+4 +; CAME B,[ASCIZ /READB/] ; READB CHANNEL? +; JRST WRONGD +; AOS (P) ; SET INDICATOR FOR BINARY MODE + +;CHECK THAT THE CHANNEL IS OPEN +MACC: MOVE B,1(AB) ;GET BACK PTR TO CHANNEL + HRRZ E,-2(B) + TRNN E,C.OPN + JRST CHNCLS ;IF CHNL CLOSED => ERROR + +;COMPUTE ACCESS PNTR TO ACCESS WORD CHAR IS IN +;REMAINDER IS NUMBER OF TIMES TO INCR BYTE POINTER +ADEVOK: SKIPGE C,3(AB) ;GET CHAR POSN + ERRUUO EQUOTE NEGATIVE-ARGUMENT +MACC1: MOVEI D,0 + TRNN E,C.BIN ; SKIP FOR BINARY FILE + IDIVI C,5 + +;SETUP THE .ACCESS + TRNN E,C.PRIN + JRST NLSTCH + HRRZ 0,LSTCH-1(B) + MOVE A,ACCESS(B) + TRNN E,C.BIN + JRST LSTCH1 + IMULI A,5 + ADD A,ACCESS-1(B) + ANDI A,-1 +LSTCH1: CAIG 0,(A) + MOVE 0,A + MOVE A,C + IMULI A,5 + ADDI A,(D) + CAML A,0 + MOVE 0,A + HRRM 0,LSTCH-1(B) ; UPDATE "LARGEST" +NLSTCH: MOVE A,CHANNO(B) ;A GETS REAL CHANNEL NUMBER +IFN ITS,[ + DOTCAL ACCESS,[A,C] + .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS +] + +IFE ITS,[ + MOVE B,C + SFPTR ; DO IT IN TENEX + JRST ACCFAI + MOVE B,1(AB) ; RESTORE CHANNEL +] +; POP P,E ; CHECK FOR READB MODE + TRNN E,C.READ + JRST ACCOUT ; PRINT TYPE CHANNEL, GO DO IT + SKIPE BUFSTR(B) ; IS THERE A READ BUFFER TO FLUSH + JRST .+3 + SETZM LSTCH(B) ; CLEAR OUT POSSIBLE EOF INDICATOR + JRST DONADV + +;NOW FORCE GETCHR TO DO A .IOT FIRST THING + MOVEI C,BUFSTR-1(B) ; FIND END OF STRING + PUSHJ P,BYTDOP" + SUBI A,2 ; LAST REAL WORD + HRLI A,010700 + MOVEM A,BUFSTR(B) + HLLZS BUFSTR-1(B) ; CLOBBER CHAR COUNT + SETZM LSTCH(B) ;CLOBBER READ'S HIDDEN CHARACTER + +;NOW DO THE APPROPRIATE NUM OF BYTE ADVANCEMENTS + JUMPLE D,DONADV +ADVPTR: PUSHJ P,GETCHR + MOVE B,1(AB) ;RESTORE IN CASE CLOBBERED + SOJG D,ADVPTR + +DONADV: MOVE C,3(AB) ;FIXUP ACCESS SLOT IN CHNL + HLLZS ACCESS-1(B) + MOVEM C,ACCESS(B) + MOVE A,$TCHAN ;TYPE OF RESULT = "CHANNEL" + JRST FINIS ;DONE...B CONTAINS CHANNEL + +IFE ITS,[ +ACCFAI: ERRUUO EQUOTE ACCESS-FAILURE +] +ACCOUT: SKIPN C,BUFSTR(B) ; FIXUP BUFFER? + JRST ACCOU1 + HRRZ F,BUFSTR-1(B) + ADD F,[-BUFLNT*5-4] + IDIVI F,5 + ADD F,BUFSTR(B) + HRLI F,010700 + MOVEM F,BUFSTR(B) + MOVEI F,BUFLNT*5 + HRRM F,BUFSTR-1(B) +ACCOU1: TRNE E,C.BIN ; FINISHED FOR BINARY CHANNELS + JRST DONADV + + JUMPE D,DONADV ; THIS CASE OK +IFE ITS,[ + MOVE A,CHANNO(B) ; GET LAST WORD + RFPTR + JFCL + PUSH P,B + MOVNI C,1 + MOVE B,[444400,,E] ; READ THE WORD + SIN + JUMPL C,ACCFAI + POP P,B + SFPTR + JFCL + MOVE B,1(AB) ; CHANNEL BACK + MOVE C,[440700,,E] + ILDB 0,C + IDPB 0,BUFSTR(B) + SOS BUFSTR-1(B) + SOJG D,.-3 + JRST DONADV +] +IFN ITS, ERRUUO EQUOTE CANT-ACCESS-ASCII-ON-ITS + + +;WRONG TYPE OF DEVICE ERROR +WRDEV: ERRUUO EQUOTE NON-DSK-DEVICE + +; BINARY READ AND PRINT ROUTINES + +MFUNCTION PRINTB,SUBR + + ENTRY + +PBFL: PUSH P,. ; PUSH NON-ZERONESS + MOVEI A,-7 + JRST BINI1 + +MFUNCTION READB,SUBR + + ENTRY + + PUSH P,[0] + MOVEI A,-11 +BINI1: HLRZ 0,AB + CAILE 0,-3 + JRST TFA + CAIG 0,(A) + JRST TMA + + GETYP 0,(AB) ; SHOULD BE UVEC OR STORE + CAIE 0,TSTORAGE + CAIN 0,TUVEC + JRST BINI2 + CAIE 0,TCHSTR + CAIN 0,TBYTE + JRST BYTOK + JRST WTYP1 ; ELSE LOSE +BINI2: MOVE B,1(AB) ; GET IT + HLRE C,B + SUBI B,(C) ; POINT TO DOPE + GETYP A,(B) + PUSHJ P,SAT" ; GET ITS ST.ALOC.TYPE + CAIE A,S1WORD + JRST WTYP1 +BYTOK: GETYP 0,2(AB) + CAIE 0,TCHAN ; BETTER BE A CHANNEL + JRST WTYP2 + MOVE B,3(AB) ; GET IT +; MOVEI B,DIRECT-1(B) ; GET DIRECTION OF +; PUSHJ P,CHRWRD ; INTO 1 WORD +; JFCL +; MOVNI E,1 +; CAMN B,[ASCII /READB/] +; MOVEI E,0 +; CAMN B,[+1] + HRRZ A,-2(B) ; MODE BITS + TRNN A,C.BIN ; IF NOT BINARY + JRST WRONGD + MOVEI E,0 + TRNE A,C.PRIN + MOVE E,PBFL +; JUMPL E,WRONGD ; LOSER + CAME E,(P) ; CHECK WINNGE + JRST WRONGD + MOVE B,3(AB) ; GET CHANNEL BACK + SKIPN A,IOINS(B) ; OPEN? + PUSHJ P,OPENIT ; LOSE + CAMN A,[JRST CHNCLS] + JRST CHNCLS ; LOSE, CLOSED + JUMPN E,BUFOU1 ; JUMP FOR OUTPUT + MOVEI C,0 + CAML AB,[-5,,] ; SKIP IF EOF GIVEN + JRST BINI5 + MOVE 0,4(AB) + MOVEM 0,EOFCND-1(B) + MOVE 0,5(AB) + MOVEM 0,EOFCND(B) + CAML AB,[-7,,] + JRST BINI5 + GETYP 0,6(AB) + CAIE 0,TFIX + JRST WTYP + MOVE C,7(AB) +BINI5: SKIPE LSTCH(B) ; INDICATES IF EOF HIT + JRST BINEOF + GETYP 0,(AB) ; BRANCH BASED ON BYTE SIZE + CAIE 0,TCHSTR + CAIN 0,TBYTE + JRST BYTI + MOVE A,1(AB) ; GET VECTOR + PUSHJ P,PGBIOI ; READ IT + HLRE C,A ; GET COUNT DONE + HLRE D,1(AB) ; AND FULL COUNT + SUB C,D ; C=> TOTAL READ + ADDM C,ACCESS(B) + JUMPGE A,BINIOK ; NOT EOF YET + SETOM LSTCH(B) +BINIOK: MOVE B,C + MOVSI A,TFIX ; RETURN AMOUNT ACTUALLY READ + JRST FINIS + +BYTI: +IFE ITS,[ + MOVE A,1(B) + RFBSZ + FATAL RFBSZ-LOST + PUSH P,B + LDB B,[300600,,1(AB)] + SFBSZ + FATAL SFBSZ-LOST + MOVE B,3(AB) + HRRZ A,(AB) ; GET BYTE STRING LENGTH + MOVNS A + MOVSS A ; MAKE FUNNY BYTE POINTER + HRR A,1(AB) + ADDI A,1 + PUSH P,C + HLL C,1(AB) ; GET START OF BPTR + MOVE D,[SIN] + PUSHJ P,PGBIOT + HLRE C,A ; GET COUNT DONE + POP P,D + SKIPN D + HRRZ D,(AB) ; AND FULL COUNT + ADD D,C ; C=> TOTAL READ + LDB E,[300600,,1(AB)] + MOVEI A,36. + IDIVM A,E + IDIVM D,E + ADDM E,ACCESS(B) + SKIPGE C ; NOT EOF YET + SETOM LSTCH(B) + MOVE A,1(B) + POP P,B + SFBSZ + FATAL SFBSZ-LOST + MOVE C,D + JRST BINIOK +] +BUFOU1: SKIPE BUFSTR(B) ; ANY BUFFERS AROUND? + PUSHJ P,BFCLS1 ; GET RID OF SAME + MOVEI C,0 + CAML AB,[-5,,] + JRST BINO5 + GETYP 0,4(AB) + CAIE 0,TFIX + JRST WTYP + MOVE C,5(AB) +BINO5: MOVE A,1(AB) + GETYP 0,(AB) ; BRANCH BASED ON BYTE SIZE + CAIE 0,TCHSTR + CAIN 0,TBYTE + JRST BYTO + PUSH P,C + PUSHJ P,PGBIOO + POP P,C + JUMPE C,.+3 + HLRE C,1(AB) + MOVNS C + ADDM C,ACCESS(B) +BYTO1: MOVE A,(AB) ; RET VECTOR ETC. + MOVE B,1(AB) + JRST FINIS + +BYTO: +IFE ITS,[ + MOVE A,1(B) + RFBSZ + FATAL RFBSZ-FAILURE + PUSH P,B + LDB B,[300600,,1(AB)] + SFBSZ + FATAL SFBSZ-FAILURE + MOVE B,3(AB) + HRRZ A,(AB) ; GET BYTE SIZE + MOVNS A + MOVSS A ; MAKE FUNNY BYTE POINTER + HRR A,1(AB) + ADDI A,1 ; COMPENSATE FOR PGBIOT DOING THE WRONG THING + HLL C,1(AB) ; GET START OF BPTR + MOVE D,[SOUT] + PUSHJ P,PGBIOT + LDB D,[300600,,1(AB)] + MOVEI C,36. + IDIVM C,D + HRRZ C,(AB) + IDIVI C,(D) + ADDM C,ACCESS(B) + MOVE A,1(B) + POP P,B + SFBSZ + FATAL SFBSZ-FAILURE + JRST BYTO1 +] + +BINEOF: PUSH TP,EOFCND-1(B) + PUSH TP,EOFCND(B) + PUSH TP,$TCHAN + PUSH TP,B + MCALL 1,FCLOSE ; CLOSE THE LOSER + MCALL 1,EVAL + JRST FINIS + +OPENIT: PUSH P,E + PUSHJ P,OPNCHN ;TRY TO OPEN THE LOSER + JUMPE B,CHNCLS ;FAIL + POP P,E + POPJ P, + ; THESE SUBROUTINES BY NDR 9/16/73 TO FACILITATE THE +; TYPES OF IO NECESSARY TO MAKE MORE EFFICIENT USE OF +; THE NETWORK AND DO RELATED FILE TRANSFER TYPE OF JOBS. + +R1CHAR: SKIPN A,LSTCH(B) ; CHAR READING ROUTINE FOR FCOPY + PUSHJ P,RXCT + TLO A,200000 ; ^@ BUG + MOVEM A,LSTCH(B) + TLZ A,200000 + JUMPL A,.+2 ; IN CASE OF -1 ON STY + TRZN A,400000 ; EXCL HACKER + JRST .+4 + MOVEM A,LSTCH(B) ; SAVE DE-EXCLED CHAR + MOVEI A,"! + JRST .+2 + SETZM LSTCH(B) + PUSH P,C + HRRZ C,DIRECT-1(B) + CAIE C,5 ; IF DIRECTION IS 5 LONG THEN READB + JRST R1CH1 + AOS C,ACCESS-1(B) + CAMN C,[TFIX,,1] + AOS ACCESS(B) ; EVERY FIFTY INCREMENT + CAMN C,[TFIX,,5] + HLLZS ACCESS-1(B) + JRST .+2 +R1CH1: AOS ACCESS(B) + POP P,C + POPJ P, + +W1CHAR: CAIE A,15 ; CHAR WRITING ROUTINE, TEST FOR CR + JRST .+3 + SETOM CHRPOS(B) + AOSA LINPOS(B) + CAIE A,12 ; TEST FOR LF + AOS CHRPOS(B) ; IF NOT LF AOS CHARACTE5R POSITION + CAIE A,14 ; TEST FOR FORM FEED + JRST .+3 + SETZM CHRPOS(B) ; IF FORM FEED ZERO CHARACTER POSITION + SETZM LINPOS(B) ; AND LINE POSITION + CAIE A,11 ; IS THIS A TAB? + JRST .+6 + MOVE C,CHRPOS(B) + ADDI C,7 + IDIVI C,8. + IMULI C,8. ; FIX UP CHAR POS FOR TAB + MOVEM C,CHRPOS(B) ; AND SAVE + PUSH P,C + HRRZ C,-2(B) ; GET BITS + TRNN C,C.BIN ; SIX LONG MUST BE PRINTB + JRST W1CH1 + AOS C,ACCESS-1(B) + CAMN C,[TFIX,,1] + AOS ACCESS(B) + CAMN C,[TFIX,,5] + HLLZS ACCESS-1(B) + JRST .+2 +W1CH1: AOS ACCESS(B) + PUSH P,A + PUSHJ P,WXCT + POP P,A + POP P,C + POPJ P, + +R1C: SUBM M,(P) ;LITTLE ENTRY FOR COMPILED STUFF +; PUSH TP,$TCHAN ;SAVE THE CHANNEL TO BLESS IT +; PUSH TP,B +; MOVEI B,DIRECT-1(B) +; PUSHJ P,CHRWRD +; JFCL +; CAME B,[ASCIZ /READ/] +; CAMN B,[ASCII /READB/] +; JRST .+2 +; JRST BADCHN + HRRZ A,-2(B) ; GET MODE BITS + TRNN A,C.READ + JRST BADCHN + SKIPN IOINS(B) ; IS THE CHANNEL OPEN + PUSHJ P,OPENIT ; NO, GO DO IT + PUSHJ P,GRB ; MAKE SURE WE HAVE A READ BUFFER + PUSHJ P,R1CHAR ; AND GET HIM A CHARACTER + JRST MPOPJ ; THATS ALL FOLKS + +W1C: SUBM M,(P) + PUSHJ P,W1CI + JRST MPOPJ + +W1CI: +; PUSH TP,$TCHAN +; PUSH TP,B + PUSH P,A ; ASSEMBLER ENTRY TO OUTPUT 1 CHAR +; MOVEI B,DIRECT-1(B) +; PUSHJ P,CHRWRD ; INTERNAL CALL TO W1CHAR +; JFCL +; CAME B,[ASCII /PRINT/] +; CAMN B,[+1] +; JRST .+2 +; JRST BADCHN +; POP TP,B +; POP TP,(TP) + HRRZ A,-2(B) + TRNN A,C.PRIN + JRST BADCHN + SKIPN IOINS(B) ; MAKE SURE THAT IT IS OPEN + PUSHJ P,OPENIT + PUSHJ P,GWB + POP P,A ; GET THE CHAR TO DO + JRST W1CHAR + +; ROUTINES TO REPLACE XCT IOINS(B) FOR INPUT AND OUTPUT +; THEY DO THE XCT THEN CHECK OUT POSSIBLE SCRIPTAGE--BLECH. + + +WXCT: +RXCT: XCT IOINS(B) ; READ IT + SKIPN SCRPTO(B) + POPJ P, + +DOSCPT: PUSH TP,$TCHAN + PUSH TP,B + PUSH P,A ; AND SAVE THE CHAR AROUND + + SKIPN SCRPTO(B) ; IF ZERO FORGET IT + JRST SCPTDN ; THATS ALL THERE IS TO IT + PUSH P,C ; SAVE AN ACCUMULATOR FOR CLEANLINESS + GETYP C,SCRPTO-1(B) ; IS IT A LIST + CAIE C,TLIST + JRST BADCHN + PUSH TP,$TLIST + PUSH TP,[0] ; SAVE A SLOT FOR THE LIST + MOVE C,SCRPTO(B) ; GET THE LIST OF SCRIPT CHANNELS +SCPT1: GETYP B,(C) ; GET THE TYPE OF THIS SCRIPT CHAN + CAIE B,TCHAN + JRST BADCHN ; IF IT ISN'T A CHANNEL, COMPLAIN + HRRZ B,(C) ; GET THE REST OF THE LIST IN B + MOVEM B,(TP) ; AND STORE ON STACK + MOVE B,1(C) ; GET THE CHANNEL IN B + MOVE A,-1(P) ; AND THE CHARACTER IN A + PUSHJ P,W1CI ; GO TO INTERNAL W1C, IT BLESSES GOODIES + SKIPE C,(TP) ; GET THE REST OF LIST OF CHANS + JRST SCPT1 ; AND CYCLE THROUGH + SUB TP,[2,,2] ; CLEAN OFF THE LIST OF CHANS + POP P,C ; AND RESTORE ACCUMULATOR C +SCPTDN: POP P,A ; RESTORE THE CHARACTER + POP TP,B ; AND THE ORIGINAL CHANNEL + POP TP,(TP) + POPJ P, ; AND THATS ALL + + +; SUBROUTINE TO COPY FROM INCHAN TO OUTCHAN UNTIL EOF HIT +; ON THE INPUT CHANNEL +; CALL IS WHERE DEFAULTS ARE INCHAN AND OUTCHAN + + MFUNCTION FCOPY,SUBR,[FILECOPY] + + ENTRY + HLRE 0,AB + CAMGE 0,[-4] + JRST WNA ; TAKES FROM 0 TO 2 ARGS + + JUMPE 0,.+4 ; NO FIRST ARG? + PUSH TP,(AB) + PUSH TP,1(AB) ; SAVE IN CHAN + JRST .+6 + MOVE A,$TATOM + MOVE B,IMQUOTE INCHAN + PUSHJ P,IDVAL + PUSH TP,A + PUSH TP,B + HLRE 0,AB ; CHECK FOR SECOND ARG + CAML 0,[-2] ; WAS THERE MORE THAN ONE ARG? + JRST .+4 + PUSH TP,2(AB) ; SAVE SECOND ARG + PUSH TP,3(AB) + JRST .+6 + MOVE A,$TATOM ; LOOK UP OUTCHAN AS DEFAULT + MOVE B,IMQUOTE OUTCHAN + PUSHJ P,IDVAL + PUSH TP,A + PUSH TP,B ; AND SAVE IT + + MOVE A,-3(TP) + MOVE B,-2(TP) ; INPUT CHANNEL + MOVEI 0,C.READ ; INDICATE INPUT + PUSHJ P,CHKCHN ; CHECK FOR GOOD CHANNEL + MOVE A,-1(TP) + MOVE B,(TP) ; GET OUT CHAN + MOVEI 0,C.PRIN ; INDICATE OUT CHAN + PUSHJ P,CHKCHN ; CHECK FOR GOOD OUT CHAN + + PUSH P,[0] ; COUNT OF CHARS OUTPUT + + MOVE B,-2(TP) + PUSHJ P,GRB ; MAKE SURE WE HAVE READ BUFF + MOVE B,(TP) + PUSHJ P,GWB ; MAKE SURE WE HAVE WRITE BUFF + +FCLOOP: INTGO + MOVE B,-2(TP) + PUSHJ P,R1CHAR ; GET A CHAR + JUMPL A,FCDON ; IF A NEG NUMBER WE GOT EOF + MOVE B,(TP) ; GET OUT CHAN + PUSHJ P,W1CHAR ; SPIT IT OUT + AOS (P) ; INCREMENT COUNT + JRST FCLOOP + +FCDON: SUB TP,[2,,2] ; POP OFF OUTCHAN + MCALL 1,FCLOSE ; CLOSE INCHAN + MOVE A,$TFIX + POP P,B ; GET CHAR COUNT TO RETURN + JRST FINIS + +CHKCHN: PUSH P,0 ; CHECK FOR GOOD TASTING CHANNEL + PUSH TP,A + PUSH TP,B + GETYP C,A + CAIE C,TCHAN + JRST CHKBDC ; GO COMPLAIN IN RIGHT WAY +; MOVEI B,DIRECT-1(B) +; PUSHJ P,CHRWRD +; JRST CHKBDC +; MOVE C,(P) ; GET CHAN DIRECT + HRRZ C,-2(B) ; MODE BITS + TDNN C,0 + JRST CHKBDC +; CAMN B,CHKT(C) +; JRST .+4 +; ADDI C,2 ; TEST FOR READB OR PRINTB ALSO +; CAME B,CHKT(C) ; TEST FOR CORRECT DIRECT +; JRST CHKBDC + MOVE B,(TP) + SKIPN IOINS(B) ; MAKE SURE IT IS OPEN + PUSHJ P,OPENIT ; IF ZERO IOINS GO OPEN IT + SUB TP,[2,,2] + POP P, ; CLEAN UP STACKS + POPJ P, + +CHKT: ASCIZ /READ/ + ASCII /PRINT/ + ASCII /READB/ + +1 + +CHKBDC: POP P,E + MOVNI D,2 + IMULI D,1(E) + HLRE 0,AB + CAMLE 0,D ; SEE IF THIS WAS HIS ARG OF DEFAULT + JRST BADCHN + JUMPE E,WTYP1 + JRST WTYP2 + + ; FUNCTIONS READSTRING AND PRINTSTRING WORK LIKE READB AND PRINTB, +; THAT IS THEY READ INTO AND OUT OF STRINGS. IN ADDITION BOTH ACCEPT +; AN ADDITIONAL ARGUMENT WHICH IS THE NUMBER OF CHARS TO READ OR PRINT, IF +; IT IS DESIRED FOR THIS TO BE DIFFERENT THAN THE LENGTH OF THE STRING. + +; FORMAT IS +; AND BOTH SUBRS RETURN THE NUMBER OF CHARS READ OR WRITTEN + +; FORMAT FOR PRINTSTRING IS + +; THESE WERE CODED 9/16/73 BY NEAL D. RYAN + + MFUNCTION RSTRNG,SUBR,READSTRING + + ENTRY + PUSH P,[0] ; FLAG TO INDICATE READING + HLRE 0,AB + CAMG 0,[-1] + CAMG 0,[-9] + JRST WNA ; CHECK THAT IT HAS FROM 1 TO 4 ARGS + JRST STRIO1 + + MFUNCTION PSTRNG,SUBR,PRINTSTRING + + ENTRY + PUSH P,[1] ; FLAG TO INDICATE WRITING + HLRE 0,AB + CAMG 0,[-1] + CAMG 0,[-7] + JRST WNA ; CHECK THAT IT HAS FROM 1 TO 3 ARGS + +STRIO1: PUSH TP,[0] ; SAVE SLOT ON STACK + PUSH TP,[0] + GETYP 0,(AB) + CAIE 0,TCHSTR ; MAKE SURE WE GOT STRING + JRST WTYP1 + HRRZ 0,(AB) ; CHECK FOR EMPTY STRING + SKIPN (P) + JUMPE 0,MTSTRN + HLRE 0,AB + CAML 0,[-2] ; WAS A CHANNEL GIVEN + JRST STRIO2 + GETYP 0,2(AB) + SKIPN (P) ; SKIP IF PRINT + JRST TESTIN + CAIN 0,TTP ; SEE IF FLATSIZE HACK + JRST STRIO9 +TESTIN: CAIE 0,TCHAN + JRST WTYP2 ; SECOND ARG NOT CHANNEL + MOVE B,3(AB) + HRRZ B,-2(B) + MOVNI E,1 ; CHECKING FOR GOOD DIRECTION + TRNE B,C.READ ; SKIP IF NOT READ + MOVEI E,0 + TRNE B,C.PRIN ; SKIP IF NOT PRINT + MOVEI E,1 + CAME E,(P) + JRST WRONGD ; MAKE SURE CHANNEL IS OPEN IN RIGHT MODE +STRIO9: PUSH TP,2(AB) + PUSH TP,3(AB) ; PUSH ON CHANNEL + JRST STRIO3 +STRIO2: MOVE B,IMQUOTE INCHAN + MOVSI A,TCHAN + SKIPE (P) + MOVE B,IMQUOTE OUTCHAN + PUSHJ P,IDVAL + GETYP 0,A + SKIPN (P) ; SKIP IF PRINTSTRING + JRST TESTI2 + CAIN 0,TTP ; SKIP IF NOT FLATSIZE HACK + JRST STRIO8 +TESTI2: CAIE 0,TCHAN + JRST BADCHN ; MAKE SURE WE GOT A GOOD DEFAULT CHANNEL +STRIO8: PUSH TP,A + PUSH TP,B +STRIO3: MOVE B,(TP) ; GET CHANNEL + SKIPN E,IOINS(B) + PUSHJ P,OPENIT ; IF NOT GO OPEN + MOVE E,IOINS(B) + CAMN E,[JRST CHNCLS] + JRST CHNCLS ; CHECK TO SEE THAT CHANNEL ISNT ALREADY CLOSED +STRIO4: HLRE 0,AB + CAML 0,[-4] + JRST STRIO5 ; NO COUNT TO WORRY ABOUT + GETYP 0,4(AB) + MOVE E,4(AB) + MOVE C,5(AB) + CAIE 0,TCHSTR + CAIN 0,TFIX ; BETTER BE A FIXED NUMBER + JRST .+2 + JRST WTYP3 + HRRZ D,(AB) ; GET ACTUAL STRING LENGTH + CAIN 0,TFIX + JRST .+7 + SKIPE (P) ; TEST FOR WRITING + JRST .-7 ; IF WRITING WE GOT TROUBLE + PUSH P,D ; ACTUAL STRING LENGTH + MOVEM E,(TB) ; STUFF HIS FUNNY DELIM STRING + MOVEM C,1(TB) + JRST STRIO7 + CAML D,C ; MAKE SURE THE STRING IS LONG ENOUGH + JRST .+2 ; WIN + ERRUUO EQUOTE COUNT-GREATER-THAN-STRING-SIZE + PUSH P,C ; PUSH ON MAX COUNT + JRST STRIO7 +STRIO5: +STRIO6: HRRZ C,(AB) ; GET CHAR COUNT + PUSH P,C ; AND PUSH IT ON STACK AS NO MAX COUNT GIVEN +STRIO7: HLRE 0,AB + CAML 0,[-6] + JRST .+6 + MOVE B,(TP) ; GET THE CHANNEL + MOVE 0,6(AB) + MOVEM 0,EOFCND-1(B) ; STUFF IN SLOT IN CHAN + MOVE 0,7(AB) + MOVEM 0,EOFCND(B) + PUSH TP,(AB) ; PUSH ON STRING + PUSH TP,1(AB) + PUSH P,[0] ; PUSH ON CURRENT COUNT OF CHARS DONE + MOVE 0,-2(P) ; GET READ OR WRITE FLAG + JUMPN 0,OUTLOP ; GO WRITE STUFF + + MOVE B,-2(TP) ; GET CHANNEL + PUSHJ P,GRB ; MAKE SURE WE HAVE BUFF + SKIPGE A,LSTCH(B) ; CHECK FOR EOF ALREADY READ PREVIOUSLY + JRST SRDOEF ; GO DOES HIS EOF HACKING +INLOP: INTGO + MOVE B,-2(TP) ; GET CHANNEL + MOVE C,-1(P) ; MAX COUNT + CAMG C,(P) ; COMPARE WITH COUNT DONE + JRST STREOF ; WE HAVE FINISHED + PUSHJ P,R1CHAR ; GET A CHAR + JUMPL A,INEOF ; EOF HIT + MOVE C,1(TB) + HRRZ E,(TB) ; DO WE HAVE A STRING TO WORRY US? + SOJL E,INLNT ; GO FINISH STUFFING + ILDB D,C + CAME D,A + JRST .-3 + JRST INEOF +INLNT: IDPB A,(TP) ; STUFF IN STRING + SOS -1(TP) ; DECREMENT STRING COUNT + AOS (P) ; INCREMENT CHAR COUNT + JRST INLOP + +INEOF: SKIPE C,LSTCH(B) ; IS THIS AN ! AND IS THERE A CHAR THERE + JRST .+3 ; YES + MOVEM A,LSTCH(B) ; NO SAVE THE CHAR + JRST .+3 + ADDI C,400000 + MOVEM C,LSTCH(B) + MOVSI C,200000 + IORM C,LSTCH(B) + HRRZ C,DIRECT-1(B) ; GET THE TYPE OF CHAN + CAIN C,5 ; IS IT READB? + JRST .+3 + SOS ACCESS(B) ; FIX UP ACCESS FOR READ CHANNEL + JRST STREOF ; AND THATS IT + HRRZ C,ACCESS-1(B) ; FOR A READB ITS WORSE + MOVEI D,5 + SKIPG C + HRRM D,ACCESS-1(B) ; CHANGE A 0 TO A FIVE + SOS C,ACCESS-1(B) + CAMN C,[TFIX,,0] + SOS ACCESS(B) ; AND SOS THE WORD COUNT MAYBE + JRST STREOF + +SRDOEF: SETZM LSTCH(B) ; IN CASE OF -1, FLUSH IT + AOJE A,INLOP ; SKIP OVER -1 ON PTY'S + SUB TP,[6,,6] + SUB P,[3,,3] ; POP JUNK OFF STACKS + PUSH TP,EOFCND-1(B) + PUSH TP,EOFCND(B) ; WHAT WE NEED TO EVAL + PUSH TP,$TCHAN + PUSH TP,B + MCALL 1,FCLOSE ; CLOSE THE LOOSING CHANNEL + MCALL 1,EVAL ; EVAL HIS EOF JUNK + JRST FINIS + +OUTLOP: MOVE B,-2(TP) +OUTLP1: INTGO + MOVE A,-3(TP) ; GET CHANNEL + MOVE B,-2(TP) + MOVE C,-1(P) ; MAX COUNT TO DO + CAMG C,(P) ; HAVE WE DONE ENOUGH + JRST STREOF + ILDB D,(TP) ; GET THE CHAR + SOS -1(TP) ; SUBTRACT FROM STRING LENGTH + AOS (P) ; INC COUNT OF CHARS DONE + PUSHJ P,CPCH1 ; GO STUFF CHAR + JRST OUTLP1 + +STREOF: MOVE A,$TFIX + POP P,B ; RETURN THE LOOSER A COUNT OF WHAT WAS DONE + SUB P,[2,,2] + SUB TP,[6,,6] + JRST FINIS + + +GWB: SKIPE BUFSTR(B) + POPJ P, + PUSH TP,$TCHAN + PUSH TP,B ; GET US A WRITE BUFFER ON PRINTB CHAN + MOVEI A,BUFLNT + PUSHJ P,IBLOCK + MOVSI A,TWORD+.VECT. + MOVEM A,BUFLNT(B) + SETOM (B) + MOVEI C,1(B) + HRLI C,(B) + BLT C,BUFLNT-1(B) + MOVEI C,-1(B) + HRLI C,010700 + MOVE B,(TP) + MOVEI 0,C.BUF + IORM 0,-2(B) + MOVEM C,BUFSTR(B) + MOVE C,[TCHSTR,,BUFLNT*5] + MOVEM C,BUFSTR-1(B) + SUB TP,[2,,2] + POPJ P, + + +GRB: SKIPE BUFSTR(B) + POPJ P, + PUSH TP,$TCHAN + PUSH TP,B ; GET US A READ BUFFER + MOVEI A,BUFLNT + PUSHJ P,IBLOCK + MOVEI C,BUFLNT-1(B) + POP TP,B + MOVEI 0,C.BUF + IORM 0,-2(B) + HRLI C,010700 + MOVEM C,BUFSTR(B) + MOVSI C,TCHSTR + MOVEM C,BUFSTR-1(B) + SUB TP,[1,,1] + POPJ P, + +MTSTRN: ERRUUO EQUOTE EMPTY-STRING + + ; INPUT UNBUFFERING ROUTINE. THIS DOES THE CHARACTER UNBUFFERING +; FOR INPUT. THE OPEN ROUTINE SETUPS A PUSHJ P, TO +; THIS ROUTINE AS THE IOINS FOR A CHANNEL OPEN TO A NON-TTY DEVICE. + +; H. BRODIE 7/19/72 + +; CALLING SEQ: +; PUSHJ P,GETCHR +; B/ AOBJN PNTR TO CHANNEL VECTOR +; RETURNS NEXT CHARACTER IN AC A. +; ON ENCOUNTERING EITHER ^C OR NUL(^@) IT ASSUMES EOF AND +; TRANSMITS ONLY ^C ON SUCCESSIVE CALLS + + +GETCHR: +; FIRST GRAB THE BUFFER +; GETYP A,BUFSTR-1(B) ; GET TYPE WORD +; CAIN A,TCHSTR ; SKIPS IF NOT CHSTR (I.E. IF BAD BUFFER) +; JRST GTGBUF ; IS GOOD BUFFER...SKIP ERROR RETURN +GTGBUF: HRRZ A,BUFSTR-1(B) ; GET LENGTH OF STRING + SOJGE A,GTGCHR ; JUMP IF STILL MORE + +; HERE IF THE BUFFER WAS EXHAUSTED (BYTE PNTR POINTS INTO DOPE WDS) +; GENERATE AN .IOT POINTER +;FIRST SAVE C AND D AS I WILL CLOBBER THEM +NEWBUF: PUSH P,C + PUSH P,D +IFN ITS,[ + LDB C,[600,,STATUS(B)] ; GET TYPE + CAIG C,2 ; SKIP IF NOT TTY +] +IFE ITS,[ + SKIPE BUFRIN(B) +] + JRST GETTTY ; GET A TTY BUFFER + + PUSHJ P,PGBUFI ; RE-FILL BUFFER + +IFE ITS, MOVEI C,-1 + JUMPGE A,BUFGOO ;SKIPS IF IOT COMPLETED...FIX UP CHANNEL +IFN ITS,[ + MOVEI C,1 ; MAKE SURE LAST EOF REALLY ENDS IT + ANDCAM C,-1(A) +] + MOVSI C,014000 ; GET A ^C + MOVEM C,(A) ;FAKE AN EOF + +IFE ITS,[ + HLRE C,A ; HOW MUCH LEFT + ADDI C,BUFLNT ; # OF WORDS TO C + IMULI C,5 ; TO CHARS + PUSH P,0 + MOVEI 0,1 + SKIPE C + ANDCAM 0,-1(1) + POP P,0 + MOVE A,-2(B) ; GET BITS + TRNE A,C.BIN ; CAN'T HELP A BINARY CHANNEL + JRST BUFGOO + MOVE A,CHANNO(B) + PUSH P,B + PUSH P,D + PUSH P,C + PUSH P,[0] + PUSH P,[0] + MOVEI C,-1(P) + MOVE B,[2,,11] ; READ WORD CONTAINING BYTE SIZE + GTFDB + LDB D,[300600,,-1(P)] ; GET BYTE SIZE + MOVE B,(P) + SUB P,[2,,2] + POP P,C + CAIE D,7 ; SEVEN BIT BYTES? + JRST BUFGO1 ; NO, DONT HACK + MOVE D,C + IDIVI B,5 ; C IS NUMBER IN LAST WORD IF NOT EVEN + SKIPN C + MOVEI C,5 + ADDI C,-5(D) ; FIXUP C FOR WINNAGE +BUFGO1: POP P,D + POP P,B +] +; RESET THE BYTE POINTER IN THE CHANNEL. +; BUILD ONE USING THE PTR TO BEG OF BUFFER SAVED IN D +BUFGOO: HRLI D,010700 ; GENERATE VIRGIN LH + SUBI D,1 + + MOVEM D,BUFSTR(B) ; STASH IN THE BUFFER BYTE PNTR SLOT +IFE ITS, HRRM C,LSTCH-1(B) ; SAVE IT + MOVEI A,BUFLNT*5-1 +BUFROK: POP P,D ;RESTORE D + POP P,C ;RESTORE C + + +; HERE IF THERE ARE CHARS IN BUFFER +GTGCHR: HRRM A,BUFSTR-1(B) + ILDB A,BUFSTR(B) ; GET A CHAR FROM BUFFER + +IFN ITS,[ + CAIE A,3 ; EOF? + POPJ P, ; AND RETURN + LDB A,[600,,STATUS(B)] ; CHECK FOR TTY + CAILE A,2 ; SKIP IF TTY +] +IFE ITS,[ + PUSH P,0 + HRRZ 0,LSTCH-1(B) + SOJL 0,.+4 + HRRM 0,LSTCH-1(B) + POP P,0 + POPJ P, + + POP P,0 + MOVSI A,-1 + SKIPN BUFRIN(B) +] + JRST .+3 +RETEO1: HRRI A,3 + POPJ P, + + HRRZ A,BUFSTR(B) ; SEE IF RSUBR START BIT IS ON + HRRZ A,(A) + TRNN A,1 + MOVSI A,-1 + JRST RETEO1 + +IFN ITS,[ +PGBUFO: +PGBUFI: +] +IFE ITS,[ +PGBUFO: SKIPA D,[SOUT] +PGBUFI: MOVE D,[SIN] +] + SKIPGE A,BUFSTR(B) ; POINT TO CURRENT BUFFER POSIT + SUBI A,1 ; FOR 440700 AND 010700 START + SUBI A,BUFLNT-1 ; CALCULATE PNTR TO BEG OF BUFFER + HRLI A,-BUFLNT ; IOT (AOBJN) PNTR IN A + MOVSI C,004400 +IFN ITS,[ +PGBIOO: +PGBIOI: MOVE D,A ; COPY FOR LATER + MOVSI C,TUVEC ; PREPARE TO HANDDLE INTS + MOVE PVP,PVSTOR+1 + MOVEM C,DSTO(PVP) + MOVEM C,ASTO(PVP) + MOVSI C,TCHAN + MOVEM C,BSTO(PVP) + +; BUILD .IOT INSTR + MOVE C,CHANNO(B) ; CHANNEL NUMBER IN C + ROT C,23. ; MOVE INTO AC FIELD + IOR C,[.IOT 0,A] ; IOR IN SKELETON .IOT + +; DO THE .IOT + ENABLE ; ALLOW INTS + XCT C ; EXECUTE THE .IOT INSTR + DISABLE + MOVE PVP,PVSTOR+1 + SETZM BSTO(PVP) + SETZM ASTO(PVP) + SETZM DSTO(PVP) + POPJ P, +] + +IFE ITS,[ +PGBIOT: PUSH P,D + PUSH TP,$TCHAN + PUSH TP,B + PUSH P,C + HRRZS (P) + HRRI C,-1(A) ; POINT TO BUFFER + HLRE D,A ; XTRA POINTER + MOVNS D + HRLI D,TCHSTR + MOVE PVP,PVSTOR+1 + MOVEM D,BSTO(PVP) + MOVE D,[PUSHJ P,FIXACS] + MOVEM D,ONINT + MOVSI D,TUVEC + MOVEM D,DSTO(PVP) + MOVE D,A + MOVE A,CHANNO(B) ; FILE JFN + MOVE B,C + HLRE C,D ; - COUNT TO C + SKIPE (P) + MOVN C,(P) ; REAL DESIRED COUNT + SUB P,[1,,1] + ENABLE + XCT (P) ; DO IT TO IT + DISABLE + MOVE PVP,PVSTOR+1 + SETZM BSTO(PVP) + SETZM DSTO(PVP) + SETZM ONINT + MOVEI A,1(B) + MOVE B,(TP) + SUB TP,[2,,2] + SUB P,[1,,1] + JUMPGE C,CPOPJ ; NO EOF YET + HRLI A,(C) ; LOOK LIKE AN AOBJN PNTR + POPJ P, + +FIXACS: PUSH P,PVP + MOVE PVP,PVSTOR+1 + MOVNS C + HRRM C,BSTO(PVP) + MOVNS C + POP P,PVP + POPJ P, + +PGBIOO: SKIPA D,[SOUT] +PGBIOI: MOVE D,[SIN] + HRLI C,004400 + JRST PGBIOT +DOIOTO: PUSH P,[SOUT] +DOIOTC: PUSH P,B + PUSH P,C + EXCH A,B + MOVE A,CHANNO(A) + HLRE C,B + HRLI B,444400 + XCT -2(P) + HRL B,C + MOVE A,B +DOIOTE: POP P,C + POP P,B + SUB P,[1,,1] + POPJ P, +DOIOTI: PUSH P,[SIN] + JRST DOIOTC +] + +; OUTPUT BUFFERING ROUTINES SIMILAR TO INPUT BUFFERING ROUTINES OF PREV PAGE + +PUTCHR: PUSH P,A + GETYP A,BUFSTR-1(B) ; CHECK TYPE OF ARG + CAIE A,TCHSTR ; MUST BE STRING + JRST BDCHAN + + HRRZ A,BUFSTR-1(B) ; GET CHAR COUNT + JUMPE A,REBUFF ; PREV RESET BUFF, UNDO SAME + +PUTCH1: POP P,A ; RESTORE CHAR + CAMN A,[-1] ; SPECIAL HACK? + JRST PUTCH2 ; YES GO HANDLE + IDPB A,BUFSTR(B) ; STUFF IT +PUTCH3: SOS A,BUFSTR-1(B) ; COUNT DOWN STRING + TRNE A,-1 ; SKIP IF FULL + POPJ P, + +; HERE TO FLUSH OUT A BUFFER + + PUSH P,C + PUSH P,D + PUSHJ P,PGBUFO ; SETUP AND DO IOT + HRLI D,010700 ; POINT INTO BUFFER + SUBI D,1 + MOVEM D,BUFSTR(B) ; STORE IT + MOVEI A,BUFLNT*5 ; RESET COUNT + HRRM A,BUFSTR-1(B) + POP P,D + POP P,C + POPJ P, + +;HERE TO DA ^C AND TURN ON MAGIC BIT + +PUTCH2: MOVEI A,3 + IDPB A,BUFSTR(B) ; ZAP OUT THE ^C + MOVEI A,1 ; GET BIT +IFE ITS,[ + PUSH P,C + HRRZ C,BUFSTR(B) + IORM A,(C) + POP P,C +] +IFN ITS,[ + IORM A,@BUFSTR(B) ; ON GOES THE BIT +] + JRST PUTCH3 + +; RESET A FUNNY BUF + +REBUFF: MOVEI A,BUFLNT*5 ; 1ST COUNT + HRRM A,BUFSTR-1(B) + HRRZ A,BUFSTR(B) ; NOW POINTER + SUBI A,BUFLNT+1 + HRLI A,010700 + MOVEM A,BUFSTR(B) ; STORE BACK + JRST PUTCH1 + + +; HERE TO FLUSH FINAL BUFFER + +BFCLOS: HRRZ C,-2(B) ; THIS BUFFER FLUSHER THE WORK OF NDR + MOVEI A,0 + TRNE C,C.TTY + POPJ P, + TRNE C,C.DISK + MOVEI A,1 + PUSH P,A ; SAVE THE RESULT OF OUR TEST + JUMPN A,BFCLNN ; DONT HAVE TO CHECK NET STATE + PUSH TP,$TCHAN + PUSH TP,B ; SAVE CHANNEL + PUSHJ P,INSTAT ; GET CURRENT NETWORK STATE + MOVE A,(B) ; GET FIRST ELEMENT OF STATE UVECTOR WHICH IS CUR STATE + POP TP,B ; RESTORE B + POP TP, + CAIE A,5 ; IS NET IN OPEN STATE? + CAIN A,6 ; OR ELSE IS IT IN RFNM WAIT STATE + JRST BFCLNN ; IF SO TO THE IOT + POP P, ; ELSE FLUSH CRUFT AND DONT IOT + POPJ P, ; RETURN DOING NO IOT +BFCLNN: MOVEI C,BUFLNT*5 ; NEW BUFFER FLUSHER BY NDR + HRRZ D,BUFSTR-1(B) ; SO THAT NET ALSO WORKS RIGHT + SUBI C,(D) ; GET NUMBER OF CHARS + IDIVI C,5 ; NUMBER OF FULL WORDS AND REST + PUSH P,D ; SAVE NUMBER OF ODD CHARS + SKIPGE A,BUFSTR(B) ; GET CURRENT BUF POSITION + SUBI A,1 ; FIX FOR 440700 BYTE POINTER +IFE ITS,[ + HRRO D,A + PUSH P,(D) +] +IFN ITS,[ + PUSH P,(A) ; SAVE THE ODD WORD OF BUFFER +] + MOVEI D,BUFLNT + SUBI D,(C) + SKIPE -1(P) + SUBI A,1 + ADDI D,1(A) ; FIX UP FOR POSSIBLE ODD CHARS + PUSH TP,$TUVEC + PUSH TP,D ; PUSH THE DOPE VECTOR ONTO THE STACK + JUMPE C,BFCLSR ; IN CASE THERE ARE NO FULL WORDS TO DO + HRL A,C + TLO A,400000 + MOVE E,[SETZ BUFLNT(A)] + SUBI E,(C) ; FIX UP FOR BACKWARDS BLT + POP A,@E ; AMAZING GRACE + TLNE A,377777 + JRST .-2 + HRRO A,D ; SET UP AOBJN POINTER + SUBI A,(C) + TLC A,-1(C) + PUSHJ P,PGBIOO ; DO THE IOT OF ALL THE FULL WORDS +BFCLSR: HRRO A,(TP) ; GET IOT PTR FOR REST OF JUNK + SUBI A,1 ; POINT TO WORD BEFORE DOPE WORDS + POP P,0 ; GET BACK ODD WORD + POP P,C ; GET BACK ODD CHAR COUNT + POP P,D ; FLAG FOR NET OR DSK + JUMPN D,BFCDSK ; GO FINISH OFF DSK + JUMPE C,BFCLSD ; IF NO ODD CHARS FINISH UP + MOVEI D,7 + IMULI D,(C) ; FIND NO OF BITS TO SHIFT + LSH 0,-43(D) ; SHIFT BITS TO RIGHT PLACE + MOVEM 0,(A) ; STORE IN STRING + SUBI C,5 ; HOW MANY CHAR POSITIONS TO SKIP + MOVNI C,(C) ; MAKE C POSITIVE + LSH C,17 + TLC A,(C) ; MUNG THE AOBJN POINTER TO KLUDGE + PUSHJ P,PGBIOO ; DO IOT OF ODD CHARS + MOVEI C,0 +BFCLSD: HRRZ A,(TP) ; GET PTR TO DOPE WORD + SUBI A,BUFLNT+1 + JUMPLE C,.+3 + SKIPE ACCESS(B) + MOVEM 0,1(A) ; LAST WORD BACK IN BFR + HRLI A,010700 ; AOBJN POINTER TO FIRST OF BUFFER + MOVEM A,BUFSTR(B) + MOVEI A,BUFLNT*5 + HRRM A,BUFSTR-1(B) + SKIPN ACCESS(B) + JRST BFCLSY + JUMPL C,BFCLSY + JUMPE C,BFCLSZ + IBP BUFSTR(B) + SOS BUFSTR-1(B) + SOJG C,.-2 +BFCLSY: MOVE A,CHANNO(B) + MOVE C,B +IFE ITS,[ + RFPTR + FATAL RFPTR FAILED + HRRZ F,LSTCH-1(C) ; PREVIOUS HIGH + MOVE G,C ; SAVE CHANNEL + MOVE C,B + CAML F,B + MOVE C,F + MOVE F,B + HRLI A,400000 + CLOSF + JFCL + MOVNI B,1 + HRLI A,12 + CHFDB + MOVE B,STATUS(G) + ANDI A,-1 + OPENF + FATAL OPENF LOSES + MOVE C,F + IDIVI C,5 + MOVE B,C + SFPTR + FATAL SFPTR FAILED + MOVE B,G +] +IFN ITS,[ + DOTCAL RFPNTR,[A,[2000,,B]] + .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS + SUBI B,1 + DOTCAL ACCESS,[A,B] + .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS + MOVE B,C +] +BFCLSZ: SUB TP,[2,,2] + POPJ P, + +BFCDSK: TRZ 0,1 + PUSH P,C +IFE ITS,[ + PUSH TP,$TCHAN + PUSH TP,B + PUSH P,0 ; WORD OF CHARS + MOVE A,CHANNO(B) + MOVEI B,7 ; MAKE BYTE SIZE 7 + SFBSZ + JFCL + HRROI B,(P) + MOVNS C + SKIPE C + SOUT + MOVE B,(TP) + SUB P,[1,,1] + SUB TP,[2,,2] +] +IFN ITS,[ + MOVE D,[440700,,A] + DOTCAL SIOT,[CHANNO(B),D,C] + .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS +] + POP P,C + JUMPN C,BFCLSD +BFCDS1: MOVNI C,1 ; INDICATE NOT TOHACK BUFFER + JRST BFCLSD + +BFCLS1: HRRZ C,DIRECT-1(B) + MOVSI 0,(JFCL) + CAIE C,6 + MOVE 0,[AOS ACCESS(B)] + PUSH P,0 + HRRZ C,BUFSTR-1(B) + IDIVI C,5 + JUMPE D,BCLS11 + MOVEI A,40 ; PAD WITH SPACES + PUSHJ P,PUTCHR + XCT (P) ; AOS ACCESS IF NECESSARY + SOJG D,.-3 ; TO END OF WORD +BCLS11: POP P,0 + HLLZS ACCESS-1(B) + HRRZ C,BUFSTR-1(B) + CAIE C,BUFLNT*5 + PUSHJ P,BFCLOS + POPJ P, + + +; HERE TO GET A TTY BUFFER + +GETTTY: SKIPN C,EXBUFR(B) ; SKIP IF BUFFERS BACKED UP + JRST TTYWAI + HRRZ D,(C) ; CDR THE LIST + GETYP A,(C) ; CHECK TYPE + CAIE A,TDEFER ; MUST BE DEFERRED + JRST BDCHAN + MOVE C,1(C) ; GET DEFERRED GOODIE + GETYP A,(C) ; BETTER BE CHSTR + CAIE A,TCHSTR + JRST BDCHAN + MOVE A,(C) ; GET FULL TYPE WORD + MOVE C,1(C) + MOVEM D,EXBUFR(B) ; STORE CDR'D LIST + MOVEM A,BUFSTR-1(B) ; MAKE CURRENT BUFFER + MOVEM C,BUFSTR(B) + HRRM A,LSTCH-1(B) + SOJA A,BUFROK + +TTYWAI: PUSHJ P,TTYBLK ; BLOCKED FOR TTY I/O + JRST GETTTY ; SHOULD ONLY RETURN HAPPILY + + ;INTERNAL DEVICE READ ROUTINE. + +;FOR INTERNAL DEVICES THIS ROUTINE APPLIES THE GIVEN OBJECT, +;CHECKS THAT THE RETURNED VALUE IS OF TYPE CHARACTER, +;AND RETURNS THAT AS THE NEXT CHARACTER IN THE "FILE" + +;H. BRODIE 8/31/72 + +GTINTC: PUSH TP,$TCHAN ;SAVE THE CHANNEL...WE'LL CLOBBER B + PUSH TP,B + PUSH P,C ;AND SAVE THE OTHER ACS + PUSH P,D + PUSH P,E + PUSH P,0 + PUSH TP,$TCHAN + PUSH TP,B + MCALL 1,INTFCN-1(B) + GETYP A,A + CAIE A,TCHRS + JRST BADRET + MOVE A,B +INTRET: POP P,0 ;RESTORE THE ACS + POP P,E + POP P,D + POP P,C + POP TP,B ;RESTORE THE CHANNEL + SUB TP,[1,,1] ;FLUSH $TCHAN...WE DON'T NEED IT + POPJ P, + + +BADRET: ERRUUO EQUOTE INT-DEVICE-WRONG-TYPE-EVALUATION-RESULT + +;INTERNAL DEVICE PRINT ROUTINE. + +;FOR INTERNAL DEVICES THIS ROUTINE APPLIES THE GIVEN OBJECT,(FUNCTION, SUBR, OR RSUBR) +;TO THE CURRENT CHARACTER BEING "PRINTED". + +PTINTC: PUSH TP,$TCHAN ;SAVE THE CHANNEL...WE'LL CLOBBER B + PUSH TP,B + PUSH P,C ;AND SAVE THE OTHER ACS + PUSH P,D + PUSH P,E + PUSH P,0 + PUSH TP,$TCHRS ;PUSH THE TYPE "CHARACTER" + PUSH TP,A ;PUSH THE CHAR + PUSH TP,$TCHAN ;PUSH THE CHANNEL + PUSH TP,B + MCALL 2,INTFCN-1(B) ;APPLY THE FUNCTION TO THE CHAR + JRST INTRET + + + +; ROUTINE TO FLUSH OUT A PRINT BUFFER + +MFUNCTION BUFOUT,SUBR + + ENTRY 1 + + GETYP 0,(AB) + CAIE 0,TCHAN + JRST WTYP1 + + MOVE B,1(AB) +; MOVEI B,DIRECT-1(B) +; PUSHJ P,CHRWRD ; GET DIR NAME +; JFCL +; CAMN B,[ASCII /PRINT/] +; JRST .+3 +; CAME B,[+1] +; JRST WRONGD +; TRNE B,1 ; SKIP IF PRINT +; PUSH P,[JFCL] +; TRNN B,1 ; SKIP IF PRINTB +; PUSH P,[AOS ACCESS(B)] + HRRZ 0,-2(B) + TRNN 0,C.PRIN + JRST WRONGD +; TRNE 0,C.BIN ; SKIP IF PRINT +; PUSH P,[JFCL] +; TRNN 0,C.BIN ; SKIP IF PRINTB +; PUSH P,[AOS ACCESS(B)] +; MOVE B,1(AB) +; GETYP 0,BUFSTR-1(B) +; CAIN 0,TCHSTR +; SKIPN A,BUFSTR(B) ; BYTE POINTER? +; JRST BFIN1 +; HRRZ C,BUFSTR-1(B) ; CHARS LEFT +; IDIVI C,5 ; MULTIPLE OF 5? +; JUMPE D,BFIN2 ; YUP NO EXTRAS + +; MOVEI A,40 ; PAD WITH SPACES +; PUSHJ P,PUTCHR ; OUT IT GOES +; XCT (P) ; MAYBE BUMP ACCESS +; SOJG D,.-3 ; FILL + +BFIN2: PUSHJ P,BFCLOS ; WRITE OUT BUFFER + +BFIN1: MOVSI A,TCHAN + JRST FINIS + + + +; FUNCTION TO GET THE FILE LENGTH OF A READ CHANNEL + +MFUNCTION FILLNT,SUBR,[FILE-LENGTH] + ENTRY 1 + + GETYP 0,(AB) + CAIE 0,TCHAN + JRST WTYP1 + MOVE B,1(AB) + PUSHJ P,CFILLE + JRST FINIS + +CFILLE: +IFN 0,[ + MOVEI B,DIRECT-1(B) ; GET CHANNEL TYPE + PUSHJ P,CHRWRD + JFCL + CAME B,[ASCIZ /READ/] + JRST .+3 + PUSH P,[5] ; MULTIPLICATIVE FACTOR FOR READ + JRST .+4 + CAME B,[ASCII /READB/] + JRST WRONGD + PUSH P,[1] ; MULTIPLICATIVE FACTOR FOR READ +] + MOVE C,-2(B) ; GET BITS + MOVEI D,5 ; ASSUME ASCII + TRNE C,C.BIN ; SKIP IF NOT BINARY + MOVEI D,1 + PUSH P,D + MOVE C,B +IFN ITS,[ + .CALL FILL1 + JRST FILLOS ; GIVE HIM A NICE FALSE +] +IFE ITS,[ + MOVE A,CHANNO(C) + PUSH P,[0] + MOVEI C,(P) + MOVE B,[1,,11] ; READ WORD CONTAINING BYTE SIZE + GTFDB + LDB D,[300600,,(P)] ; GET BYTE SIZE + JUMPN D,.+2 + MOVEI D,36. ; HANDLE "0" BYTE SIZE + SUB P,[1,,1] + SIZEF + JRST FILLOS +] + POP P,C +IFN ITS, IMUL B,C +IFE ITS,[ + CAIN C,5 + CAIE D,7 + JRST NOTASC +] +YESASC: MOVE A,$TFIX + POPJ P, + +IFE ITS,[ +NOTASC: MOVEI 0,36. + IDIV 0,D ; BYTES PER WORD + IDIVM B,0 + IMUL C,0 + MOVE B,C + JRST YESASC +] + +IFN ITS,[ +FILL1: SETZ ; BLOCK FOR .CALL TO FILLEN + SIXBIT /FILLEN/ + CHANNO (C) + SETZM B + +FILLOS: MOVE A,CHANNO(C) + MOVE B,[.STATUS A] ;MAKE A CALL TO STATUS TO FIND REASON + LSH A,23. ;SHIFT THE CHANNEL NUMBER INTO RIGHT PLACE + IOR B,A ;FIX UP .STATUS + XCT B + MOVE B,C + PUSHJ P,GFALS + POP P, + POPJ P, +] +IFE ITS,[ +FILLOS: MOVE B,C + PUSHJ P,TGFALS + POP P, + POPJ P, +] + + + ; MCHAN LOW-LEVEL I/O GARBAGE (PDL)-ORIGINAL (LIM)-ADDITIONS + +;CALLING ROUTINE: AC-A contains pointer to block of SIXBIT data +; DIR ? DEV ? FNM1 ? FNM2 ? SNM +;RETURNED VALUE : AC-A = +IFN ITS,[ +MOPEN: PUSH P,B + PUSH P,C + MOVE C,FRSTCH ; skip gc and tty channels +CNLP: DOTCAL STATUS,[C,[2000,,B]] + .LOSE %LSFIL + ANDI B,77 + JUMPE B,CHNFND ; found unused channel ? + ADDI C,1 ; try another channel + CAIG C,17 ; are all the channels used ? + JRST CNLP + SETO C, ; all channels used so C = -1 + JRST CHNFUL +CHNFND: MOVEI B,(C) + HLL B,(A) ; M.DIR slot + DOTCAL OPEN,[B,1(A),2(A),3(A),4(A)] + SKIPA + AOS -2(P) ; successful skip when returning +CHNFUL: MOVE A,C + POP P,C + POP P,B + POPJ P, + +MIOT: DOTCAL IOT,[A,B] + JFCL + POPJ P, + +MCLOSE: DOTCAL CLOSE,[A] + JFCL + POPJ P, + +IMPURE + +FRSTCH: 1 + +PURE +] + ;THREE GENERALLY USEFUL ERROR ROUTINES FOR I/O + +NOTNET: +BADCHN: ERRUUO EQUOTE BAD-CHANNEL +BDCHAN: ERRUUO EQUOTE BAD-INPUT-BUFFER + +WRONGD: ERRUUO EQUOTE WRONG-DIRECTION-CHANNEL + +CHNCLS: ERRUUO EQUOTE CHANNEL-CLOSED + +BAD6: ERRUUO EQUOTE NON-6-BIT-CHARACTER-IN-FILE-NAME + +DISLOS: MOVE C,$TCHSTR + MOVE D,CHQUOTE [DISPLAY NOT AVAILABLE] + PUSHJ P,INCONS + MOVSI A,TFALSE + JRST OPNRET + +NOCHAN: ERRUUO EQUOTE ITS-CHANNELS-EXHAUSTED + +MODE1: 232020,,202020 +MODE2: 232023,,330320 + +END + + \ No newline at end of file diff --git a//ldgc.101 b//ldgc.101 new file mode 100644 index 0000000..a0cc596 --- /dev/null +++ b//ldgc.101 @@ -0,0 +1,506 @@ +TITLE LOADGC MODULE TO LOAD THE GARBAGE COLLECTOR + +RELOCA + +.INSRT MUDDLE > +SYSQ +IFE ITS,[ +.INSRT STENEX > +XJRST==JRST 5, +] +IFN ITS, PGSZ==10. +IFE ITS, PGSZ==9. + +; ROUTINES TO GET THE GC DO PDL OVERFLOWS IN GC AND ALLOCATE SPECIAL +; BUFFERS. + +; IMPORTANT VARAIBLES + +.GLOBAL PAGEGC ; STARTING PAGE OF GARBAGE COLLECTOR (PAGES) +.GLOBAL LENGC ; LENGTH OF GARBAGE COLLECTOR (PAGES) +.GLOBAL SLENGC ; LENGTH OF MARK/SWEEP GARBAGE COLLECTOR +.GLOBAL MRKPDL ; STARTING LOCATION OF MARK PDL (WORDS) +.GLOBAL STRBUF ; START OF BUFFER LOCATIONS (WORDS) +.GLOBAL SWAPGC ; WHICH GARBAGE COLLECTOR TO LOAD + +.GLOBAL MARK2G ; GENERAL MARKING ROUTINE FOR TEMPLATE STUFF +.GLOBAL MARK2A,MARK2S ; SPECIFIC MARKERS IN SGC/AGC +.GLOBAL SECLEN ; LENGTH OF SECTION GC GUY +.GLOBAL MULTSG +.GLOBAL SECBLK,DECBLK,GCDEBU,DEBUGC,NDEBUG +.GLOBAL FRETOP,PURBOT,PURTOP,GCPDL,LPUR,STRPAG,CKPUR,INPLOD,GETPAG,CURPLN,SGCLBK,PGCNT +.GLOBAL LODGC,CKFILE,SLEEPR,KILGC,GETBUF,KILBUF,GPDLOV,GCDIR,INTDIR,GCLDBK +.GLOBAL OPBLK,SJFNS,IJFNS,OPSYS,IJFNS1,RBLDM,ILDBLK,TILDBL +.GLOBAL TMTNXS,C%1 + +IFN ITS,[ +IMAPCH==0 ; INTERNAL MAPPING CHANNEL +MAPCHN==1000,,IMAPCH ; CORBLK CHANNEL +FME==1000,,-1 ; BITS FOR CURRENT JOB +FLS==1000,,0 ; BITS TO FLUSH A PAGE +RDTP==1000,,200000 ; BITS TO MAP IN IN READ-ONLY +WRTP==1000,,100000 +CRJB==1000,,400001 ; BITS TO ALLOCATE CORE +CWRITE==1000,,4000 +] +IFE ITS,[ +MFORK==400000 +CTREAD==100000 ; READ BIT +CTEXEC==20000 ; EXECUTE BIT +CTWRIT==40000 ; WRITE BIT +CTCW==400 ; COPY ON WRITE +SGJF==1 ; USE SHORT JFN (LH FLAG) +OLDF==100000 ; REQUIRE OLD (EXISTING FILE) (LH FLAG) +FREAD==200000 ; READ BIT FOR OPENF +FEXEC==40000 ; EXEC BIT FOR OPENF +FTHAW==2000 +] +; GENERAL MARK ROUTINE FOR TEMPLATE STUFF. GOES TO RIGHT PLACE IN +; WHICHEVER GC'ER WE'RE USING AT THE MOMENT +MARK2G: SKIPN SWAPGC + JRST MARK2A ; INTO AGC + JRST MARK2S ; INTO SGC + +; ROUTINE TO LOAD THE GARBAGE COLLECTOR + +LODGC: +IFN ITS,[ + MOVEI 0,GCLDBK + SKIPE SWAPGC ; SKIP IF SWAPPED GARBAGE COLLECTOR + MOVEI 0,SGCLBK + MOVEM 0,OPBLK + + + .SUSET [.RSNAM,,SAVSNM] ; SAVE OLD SNAME + .SUSET [.SSNAM,,GCDIR] ; SET SNAME TO APP DIR + .OPEN IMAPCH,@OPBLK ; OPEN CHANNEL TO FILE + PUSHJ P,CKFILE ; SEE IF REALLY LOSING + HRLZI A,-LENGC+3 + SKIPE SWAPGC + HRLZI A,-SLENGC + MOVE B,A ; B WILL CONTAIN PTR TO CORE + HRRI B,PAGEGC + DOTCAL CORBLK,[[RDTP],[FME],B,[MAPCHN],A] + PUSHJ P,SLEEPR + HRLI B,-1 + SKIPN SWAPGC ; IF SWAP 1 PAGE FOR CORBLK ELSE 3 + HRLI B,-3 +GETIT: DOTCAL CORBLK,[[WRTP],[FME],B,[CRJB]] + PUSHJ P,SLEEPR + .CLOSE IMAPCH, + MOVEI A,LENGC ; SMASH PAGECOUNT + SKIPE SWAPGC + MOVEI A,SLENGC+1 ; PSTACK + MOVEM A,PGCNT + POPJ P, + +; SEE WHY OPEN FAILED + +CKFILE: .STATUS IMAPCH,0 ; GET STATUS BITS INTO 0 + HRLZS 0 + ANDI 0,77 ; AND OF EXTRANEOUS BITS + CAIN 0,4 ; SKIP IF NOT FNF + FATAL CANT OPEN AGC FILE + +SLEEPR: MOVEI 0,1 ; SLEEP FOR A WHILE + .SLEEP + SOS (P) ; TRY AGAIN + SOS (P) + POPJ P, ; BYE +] + +IFE ITS,[ + HRRZ A,IJFNS1 + SKIPN MULTSG + HLRZ A,IJFNS + SKIPE SWAPGC + HLRZ A,IJFNS1 + JUMPN A,GOTJFN + +; HERE TO GET GC JFNS +; GET STRING NAME OF MDL INTERPRETER FILE + HRRZ A,IJFNS ; INTERPRETER JFN + MOVE B,A ; SET UP FOR JFNS + PUSHJ P,TMTNXS ; MAKES A STRING ON P STACK + MOVE D,E ; SAVED VALUE OF P STACK + HRROI A,1(E) ; STRING FOR RESULT + MOVE C,[211000,,1] ; GET "DEV:NM1" FROM JFNS + JFNS + MOVE C,A ; SAVE TO REUSE FOR ".SGC" +; GET JFN TO AGC FILE + MOVEI B,[ASCIZ /.AGC/] + SKIPN MULTSG + JRST .+4 + MOVEI B,[ASCIZ /.DEC/] + SKIPN GCDEBU + MOVEI B,[ASCIZ /.SEC/] + SKIPE SWAPGC + MOVEI B,[ASCIZ /.SGC/] + HRLI B,440700 + ILDB B + IDPB A + JUMPN .-2 ; COPY ".AGC" INTO STRING + HRROI B,1(E) ; GTJFN STRING + MOVSI A,SGJF+OLDF ; GTJFN CONTROL BITSS + GTJFN + FATAL AGC GARBAGE COLLECTOR IS MISSING + SKIPN SWAPGC + JRST .+3 + HRLM A,IJFNS1 + JRST JFNIN + SKIPE MULTSG + HRRM A,IJFNS1 + SKIPN MULTSG + HRLM A,IJFNS +JFNIN: MOVE B,[440000,,FREAD+FEXEC] + OPENF + FATAL CANT OPEN AGC FILE + MOVE P,E +GOTJFN: + MOVEI D,SECLEN+SECLEN-2 + SKIPN MULTSG + MOVEI D,LENGC+LENGC-6 ; # OF TENEX PAGES TO GET IT + SKIPE SWAPGC + MOVEI D,SLENGC+SLENGC + MOVSI A,(A) ; JFN TO LH + MOVE B,[MFORK,,PAGEGC+PAGEGC] + MOVSI C,CTREAD+CTEXEC + +LDLP: PMAP + ADDI A,1 + ADDI B,1 + SOJG D,LDLP + + MOVEI C,0 + MOVEI D,6 ; THESE PAGES WILL BE THE GC PDL + SKIPN MULTSG + SKIPE SWAPGC + MOVEI D,2 ; PDL BUT NO FRONT OR WINDOW + MOVNI A,1 + +LDLP1: PMAP + ADDI B,1 + SOJG D,LDLP1 + + MOVEI A,SECLEN+1 + SKIPN MULTSG + MOVEI A,LENGC ; SMASH PAGECOUNT + SKIPE SWAPGC + MOVEI A,SLENGC+1 + MOVEM A,PGCNT + POPJ P, + +;ROUTINE TO "SLEEP" FOR A WHILE ON 10X/20X HA HA +SLEEPR: SOS (P) + POPJ P, +] + +; ROUTINE TO LOAD THE INTERPRETER +; C=>LENGTH OF PAGES +; D=>START OF PAGES + +LODINT: +IFN ITS,[ + .SUSET [.RSNAME,,SAVSNM] +LODIN1: .IOPUS IMAPCH, + .SUSET [.SSNAM,,INTDIR] + .OPEN IMAPCH,ILDBLK ; OPEN FILE TO INTERPRETER BLOCK + PUSHJ P,CKFILE + HLRE B,TP ; MAKE SURE BIG ENOUGJ + MOVNS B ; SEE IF WE WIN + CAIGE B,400 ; SKIP IF WINNING + FATAL NO ROOM FOR PAGE MAP + MOVSI A,-400 + HRRI A,1(TP) + .ACCES IMAPCH,C%1 + .IOT IMAPCH,A ; GET IN PAGE MAP + MOVEI A,1 ; INITIALIZE FILE PAGE COUNT + MOVEI B,0 ; CORE PAGE COUNT + MOVEI E,1(TP) +LOPFND: HRRZ 0,(E) + JUMPE 0,NOPAG ; IF 0 FORGET IT + ADDI A,1 ; AOS FILE MAP +NOPAG: ADDI B,1 ; AOS PAGE MAP + CAIE B,(D) ; SKIP IF DONE + AOJA E,LOPFND + MOVNI 0,(C) ; GET PAGE-COUNT + HRL A,0 ; BUILD FILE PAGE POINTER + HRL B,0 ; BUILD CORE PAGE POINTER + DOTCAL CORBLK,[[RDTP],[FME],B,[MAPCHN],A] + PUSHJ P,SLEEPR ; GO TO SLEEP FOR A WHILE + .CLOSE IMAPCH, + .IOPOP IMAPCH, + .SUSET [.SSNAM,,SAVSNM] + POPJ P, ; DONE +] +IFE ITS,[ + HRRZ E,IJFNS + MOVEI A,(E) ; FIND OUT LENGTH OF MAP + MOVEI B,0 + SFPTR + FATAL CANNOT RESET FILE POINTER + MOVEI A,(E) + BIN ; GET LENGTH WORD + MOVEI A,(B) ; ISOLATE SIZE OF MAP + HLRZ 0,B + HLRE B,TP ; MUST BE SPACE FOR CRUFT + MOVNS B + CAIGE B,(A) ; ROOM? + FATAL NO ROOM FOR PAGE MAP (GULP) + PUSH P,C ; SAVE # PAGES WANTED + MOVN C,A + MOVEI A,(E) ; READY TO READ IN MAP + MOVEI B,1(TP) ; ONTO TP STACK + HRLI B,444400 + SIN ; SNARF IT IN + + MOVEI A,1(TP) + CAIE 0,1000 ; CHECK FOR TENEX + JRST TOPS20 + LDB 0,[221100,,(A)] ; GET FORK PAGE + CAIE 0,(D) ; GOT IT? + AOJA A,.-2 + HRRZ A,(A) + JRST GOTPG + +TOPS21: ADDI A,2 +TOPS20: HRRZ 0,1(A) ; GET PAGE IN PROCESS + LDB B,[331100,,1(A)] ; GET REPT COUNT + ADD B,0 ; LAST PAGE IN BLOCK + CAIG 0,(D) + CAIGE B,(D) ; WITHIN RANGE? + JRST TOPS21 + SUBM D,0 + HRRZ A,(A) + ADD A,0 + +GOTPG: HRLI A,(E) + MOVEI B,(D) + HRLI B,MFORK + MOVSI C,CTREAD+CTEXEC ; BITS + POP P,D ; PAGES + ASH D,1 ; FOR TENEX + +MPLP: PMAP + ADDI A,1 + ADDI B,1 + SOJG D,MPLP ; MAP-EM IN + + POPJ P, +] + +; ROUTINE TO MAP IN OVER GARBAGE COLLECTOR EXPLICITLY + +KILGC: +IFN ITS,[ + MOVEI D,PAGEGC + MOVE C,PGCNT + JRST LODIN1 +] +IFE ITS,[ + MOVEI D,PAGEGC+PAGEGC + MOVE C,PGCNT + JRST LODINT +] + +; ROUTINE TO TRY TO ALLOCATE A BUFFER +; 1) IT FIRSTS LOOKS BETWEEN FRETOP AND PURBOT +; 2) LOOKS AT THE INTERPRETER +; A=>NUMBER OF BUFFER PAGES (CURRENTLY ALWAYS 1) +; B=>BUFFER +; BUFFER SAVED IN BUFPTR + +GETBUF: ASH A,10. ; CONVERT TO WORDS + MOVE B,PURBOT ; LOOK FOR ROOM IN GCS + SUB B,FRETOP + CAMGE B,A ; SKIP IF WINNING + JRST NOBUF1 + MOVE B,FRETOP ; BUFFER IN B + MOVEM B,BUFPTR ; SAVE BUFFER + ASH A,-10. ; TO PAGES + MOVEM A,BUFLT ; LENGTH OF BUFFER + POPJ P, +NOBUF1: ASH A,-10. ; BACK TO WORDS + SKIPE INPLOD ; SKIP IF NOT IN MAPPUR + JRST INTBUF + PUSH P,A + PUSH P,E + JSP E,CKPUR + POP P,E + POP P,A + MOVE B,PURTOP + SUB B,PURBOT + SUB B,CURPLN + ASH B,-10. ; CALCULATE AVAILABLE ROOM + CAIGE B,(A) ; SEE IF ENOUGH + JRST INTBUF ; LOSE LOSE GET BUFFER FROM INTERPRETER +IFE ITS, ASH A,1 ; TENEX PAGES + PUSH P,C + PUSH P,D + PUSH P,E + PUSHJ P,GETPAG ; GET THOSE PAGES + FATAL GETPAG FAILED + POP P,E + POP P,D + POP P,C +IFE ITS, ASH A,-1 + JRST GETBUF ; TRY AGAIN +INTBUF: MOVEM A,BUFLT +IFN ITS,[ + MOVNS A ; NEGATE + HRLZS A ; SWAP + HRRI A,STRPAG ; AOBJN TO PAGE + MOVE B,A + DOTCAL CORBLK,[[FLS],[FME],A] + FATAL CANT FLUSH PAGE + DOTCAL CORBLK,[[WRTP],[FME],B,[CRJB]] + PUSHJ P,SLEEPR +] + +IFE ITS,[ + PUSH P,C + MOVEI C,(A) ; PAGES TO FLUSH + ASH C,1 + MOVNI A,1 ; FLUSH PAGES + MOVE B,[MFORK,,STRPAG+STRPAG] ; WHICH ONES +FLSLP: PMAP + ADDI B,1 + SOJG C,FLSLP + POP P,C +] + MOVEI B,STRBUF ; START OF BUFFER + MOVEM B,BUFPTR ; SAVE IN BUFPTR + PUSHJ P,RBLDM + POPJ P, + +; ROUTINE TO FLUSH A BUFFER WHEN DONE WITH IT + +KILBUF: SKIPN B,BUFPTR ; SEE IF BUFPTR EXISTS + POPJ P, +IFE ITS, JRST @[.+1] ; RUN IN SECTION 0 + CAIL B,HIBOT ; SKIP IF NOT PART OF INTERPRETER + JRST HIBUF ; INTERPRETER +IFN ITS,[ + ASH B,-10. + MOVN A,BUFLT ; GET LENGTH + HRLI B,(A) ; BUILD PAGE AOBJN + DOTCAL CORBLK,[[FLS],[FME],B] + FATAL CANT FLUSH PAGES +] +IFE ITS,[ + ASH B,-9. ; TO PAGES + HRLI B,MFORK + MOVNI A,1 + MOVE D,BUFLT + LSH D,1 ; TO TENEX PAGES + PUSH P,C ; SAVE C + MOVEI C,0 ; C CONTAINS SOME FLAGS + +FLSLP1: PMAP + ADDI B,1 + SOJG D,FLSLP1 + + POP P,C ; RESTORE C +] + +FLEXIT: SETZM BUFPTR + SETZM BUFLT +IFE ITS,[ + PUSH P,A + HLRZ A,SJFNS + JUMPE A,.+3 + CLOSF + JFCL + SETZM SJFNS + POP P,A + SKIPN MULTSG + POPJ P, + POP P,21 + SETZM 20 + XJRST 20 +] +IFN ITS,[ + POPJ P, +] +HIBUF: MOVE C,BUFLT + MOVE D,BUFPTR +IFN ITS, ASH D,-10. +IFE ITS, ASH D,-9. + PUSHJ P,LODINT + JRST FLEXIT + +; HERE TO HANDLE GC PDL OVERFLOW. ROUTINE USES A,B AND ASSUMES GCPDL IS THE PDL + +GPDLOV: HRRZ A,PGCNT ; # OF PAGES TO A + ADDI A,PAGEGC ; SEE IF ROOM + ASH A,10. ; TO WORDS + CAIL A,LPUR ; HAVE WE LOST + FATAL NO ROOM FOR GCPDL +IFN ITS,[ + ASH A,-10. ; GET PAGE NUMBER + AOS PGCNT ; AOS + DOTCAL CORBLK,[[FLS],[FME],A] + FATAL CANT FLUSH PAGE + DOTCAL CORBLK,[[WRTP],[FME],A,[CRJB]] + PUSHJ P,SLEEPR +] +IFE ITS,[ + ASH A,-9. + AOS PGCNT + MOVE B,A + MOVNI A,1 + HRLI B,MFORK + PUSH P,C ; BETTER HAVE A PDL HERE + MOVEI C,0 + PMAP + ADDI B,1 + PMAP + POP P,C + +] + HRRI A,-2000 ; SMASH PDL + HRLM A,GCPDL + POPJ P, ; EXIT + +IFN ITS,[ + + +GCDIR: SIXBIT /MUDSAV/ +INTDIR: SIXBIT /MUDSAV/ +GCLDBK: SIXBIT / &DSK/ + SIXBIT /AGC/ + 0 ; FILLED IN BY INITM + +SGCLBK: SIXBIT / &DSK/ + SIXBIT /SGC/ + 0 + +ILDBLK: SIXBIT / &DSK/ + SIXBIT /TS/ + 0 ; FILLED IN BY INITM +] + + +IFE ITS,[ +NDEBUG: SETZM GCDEBU + CAIA +DEBUGC: SETOM GCDEBU + HRRZ A,IJFNS1 ; GET GC JFN + SKIPE A + CLOSF + JFCL + POPJ P, +] + +IMPURE +GCDEBU: 0 +BUFPTR: 0 ; POINTER TO CURRENTLY ACTIVE BUFFER (WORD) +BUFLT: 0 ; LENGTH OF CURRENTLY ACTIVE BUFFER (PAGES) +PGCNT: 0 ; # OF PAGES OF MAPPED OUT INTERPRETER +SAVSNM: 0 +OPBLK: 0 ; BLOCK USED FOR OPEN + +PURE + +END + \ No newline at end of file diff --git a//main.353 b//main.353 new file mode 100644 index 0000000..1a03e16 --- /dev/null +++ b//main.353 @@ -0,0 +1,2060 @@ +TITLE MAIN LOOP AND GLOBALLY REFERENCED SUBROUTINES + +RELOCA + +.SYMTAB 3337. + +.GLOBAL TBINIT,PIDSTO,PROCID,PTIME,GCPDL,PBASE,TYPTOP,RERR,FRMSTK,EMERGE +.GLOBAL PDLBUF,INTINT,START,SWAP,ICR,SPBASE,TPBASE,TPBAS,CURPRI,CHFINI,MKTBS +.GLOBAL TOPLEVEL,INTOBL,INITIA,ERROBL,MAINPR,RESFUN,STATUS,TYPVEC,ROOT,TTICHN,TTOCHN +.GLOBAL TTYOPE,MOPEN,MCLOSE,MIOT,ILVAL,MESS,ERROR,CHFRM,IGVAL,TYPBOT,ASOVEC +.GLOBAL PRINT,PRIN1,PRINC,MUDSTR,VECBOT,CSTACK,IFALSE,TYPLOO,RCALL,SWAPIN,CTMPLT +.GLOBAL IDPROC,CHFSWP,ILOC,MAKACT,BNDV,SPECSTORE,BINDID,IGLOC,MTYO,MSGTYP,CAFRE1,CPOPJ +.GLOBAL EVATYP,EVTYPE,APLTYP,APTYPE,PRNTYP,PRTYPE,AGC,SGSNAM,NAPT,APLQ,STRTO6 +.GLOBAL 6TOCHS,TYPFND,STBL,CHNL0,N.CHNS,CLOSAL,%LOGOUT,%SSNAM,%RSNAM,%KILLM,SAT +.GLOBAL MAKINF,%VALRET,COMPERR,IPUT,IGET,TMATCH,INITIZ,IPCINI,%UNAM,%JNAM,%RUNAM,%RJNAM,%RXUNA,%RXJNA,%VALFI +.GLOBAL NOTTY,DEMFLG,CFRAME,CARGS,CFUNCT,CITYPE,CTYPEQ,CPTYPE,CTYPEP,CUTYPE, +.GLOBAL CCHUTY,RTFALS,PGINT,PURCLN,CTYPEC,CTYPEW,IDVAL1,CALLTY,MESSAG,INITFL,WHOAMI +.GLOBAL %SLEEP,%HANG,%TOPLQ,ONINT,CHUNW,CURFCN,BUFRIN,TD.LNT,TD.GET,TD.AGC,TD.PUT,MPOPJ +.GLOBAL PURVEC,PLOAD,SSPECS,OUTRNG,CVTYPE,FSTART,CKVRS,CPRTYC,PVSTOR,SPSTOR +.GLOBAL TYPIC,CISET,LSTUF,IMPURI,REALTV +.INSRT MUDDLE > + +;MAIN LOOP AND STARTUP + +START: MOVEI 0,0 ; SET NO HACKS + JUMPE 0,START1 + TLNE 0,-1 ; SEE IF CHANNEL + JRST START1 + MOVE P,GCPDL + MOVE A,0 + PUSH P,A + PUSHJ P,CKVRS ; CHECK VERSION NUMBERS + POP P,A + JRST FSTART ; GO RESTORE +START1: MOVEM 0,WHOAMI ; HACK FOR TS FOO linked to TS MUDDLE + MOVE PVP,MAINPR ; MAKE SURE WE START IN THE MAIN PROCESS + JUMPE 0,INITIZ ; MIGHT BE RESTART + MOVE P,PSTO+1(PVP) ; SET UP FOR BOOTSTRAP HACK + MOVE TP,TPSTO+1(PVP) +INITIZ: MOVE PVP,MAINPR + SKIPN P ; IF NO CURRENT P + MOVE P,PSTO+1(PVP) ; PDL TO GET OFF THE GROUND + SKIPN TP ; SAME FOR TP + MOVE TP,TPSTO+1(PVP) ; GET A TP TO WORK WITH + SETZB R,M ; RESET RSUBR AC'S + PUSHJ P,%RUNAM + JFCL + PUSHJ P,%RJNAM + PUSHJ P,TTYOPE ;OPEN THE TTY + MOVEI B,MUDSTR + SKIPE WHOAMI ; SKIP IF THIS IS MUDDLE + JRST NODEMT ; ELSE NO MESSAGE + SKIPE DEMFLG ; SKIP IF NOT DEMON + JRST NODEMT + SKIPN NOTTY ; IF NO TTY, IGNORE + PUSHJ P,MSGTYP ;TYPE OUT TO USER + +NODEMT: XCT MESSAG ;MAYBE PRINT A MESSAGE + PUSHJ P,INTINT ;INITIALIZE INTERRUPT HANDLER + XCT IPCINI + PUSHJ P,PURCLN ; CLEAN UP PURE SHARED AREA +RESTART: ;RESTART A PROCESS +STP: MOVEI C,0 + MOVE PVP,PVSTOR+1 + MOVE B,TBINIT+1(PVP) ;POINT INTO STACK AT START + PUSHJ P,CHUNW ; LEAVE WHILE DOING UNWIND CHECK + XMOVEI E,TOPLEV + MOVEI A,TFALSE ; IN CASE FALLS OFF PROCESS + MOVEI B,0 + MOVEM E,-1(TB) + JRST CONTIN + + IMQUOTE TOPLEVEL +TOPLEVEL: + MCALL 0,LISTEN + JRST TOPLEVEL + + +IMFUNCTION LISTEN,SUBR + + ENTRY + PUSH P,[0] ;FLAG: DON'T PRINT ERROR MSG + JRST ER1 + +; USER SUPPLIED ERROR HANDLER, TEMPORARY KLUDGE + IMQUOTE ERROR + +ERROR: MOVE B,IMQUOTE ERROR + PUSHJ P,IGVAL ; GET VALUE + GETYP C,A + CAIN C,TSUBR ; CHECK FOR NO CHANGE + CAIE B,RERR1 ; SKIP IF NOT CHANGED + JRST .+2 + JRST RERR1 ; GO TO THE DEFAULT + PUSH TP,A ; SAVE VALUE + PUSH TP,B + MOVE C,AB ; SAVE AB + MOVEI D,1 ; AND COUNTER +USER1: PUSH TP,(C) ; PUSH THEM + PUSH TP,1(C) + ADD C,[2,,2] ; BUMP + ADDI D,1 + JUMPL C,USER1 + ACALL D,APPLY ; EVAL USERS ERROR + JRST FINIS + + + +IMFUNCTION ERROR%,SUBR,ERROR + +RERR1: ENTRY + PUSH TP,$TATOM + PUSH TP,MQUOTE ERROR,ERROR,INTRUP + PUSHJ P,FRMSTK ; PUT ERROR'S FRAME ON STACK + MOVEI D,2 + MOVE C,AB +RERR2: JUMPGE C,RERR22 + PUSH TP,(C) + PUSH TP,1(C) + ADD C,[2,,2] + AOJA D,RERR2 +RERR22: ACALL D,EMERGENCY + JRST RERR + +IMQUOTE ERROR +RERR: ENTRY + PUSH P,[-1] ;PRINT ERROR FLAG + +ER1: MOVE B,IMQUOTE INCHAN + PUSHJ P,ILVAL ; CHECK INPUT CHANNEL IS SOME KIND OF TTY + GETYP A,A + CAIE A,TCHAN ; SKIP IF IT IS A CHANNEL + JRST ER2 ; NO, MUST REBIND + CAMN B,TTICHN+1 + JRST NOTINC +ER2: MOVE B,IMQUOTE INCHAN + MOVEI C,TTICHN ; POINT TO VALU + PUSHJ P,PUSH6 ; PUSH THE BINDING + MOVE B,TTICHN+1 ; GET IN CHAN +NOTINC: SKIPN DEMFLG ; SKIP IF DEMON + SKIPE NOTTY + JRST NOECHO + PUSH TP,$TCHAN + PUSH TP,B + PUSH TP,$TATOM + PUSH TP,IMQUOTE T + MCALL 2,TTYECH ; ECHO INPUT +NOECHO: MOVE B,IMQUOTE OUTCHAN + PUSHJ P,ILVAL ; GET THE VALUE + GETYP A,A + CAIE A,TCHAN ; SKIP IF OK CHANNEL + JRST ER3 ; NOT CHANNEL, MUST REBIND + CAMN B,TTOCHN+1 + JRST NOTOUT +ER3: MOVE B,IMQUOTE OUTCHAN + MOVEI C,TTOCHN + PUSHJ P,PUSH6 ; PUSH THE BINDINGS +NOTOUT: MOVE B,IMQUOTE OBLIST + PUSHJ P,ILVAL ; GET THE VALUE OF OBLIST + PUSHJ P,OBCHK ; IS IT A WINNER ? + SKIPA A,$TATOM ; NO, SKIP AND CONTINUE + JRST NOTOBL ; YES, DO NOT DO REBINDING + MOVE B,IMQUOTE OBLIST + PUSHJ P,IGLOC + GETYP 0,A + CAIN 0,TUNBOU + JRST MAKOB ; NO GLOBAL OBLIST, MAKE ONE + MOVEI C,(B) ; COPY ADDRESS + MOVE A,(C) ; GET THE GVAL + MOVE B,(C)+1 + PUSHJ P,OBCHK ; IS IT A WINNER ? + JRST MAKOB ; NO, GO MAKE A NEW ONE + MOVE B,IMQUOTE OBLIST + PUSHJ P,PUSH6 + +NOTOBL: PUSH TP,[TATOM,,-1] ;FOR BINDING + PUSH TP,IMQUOTE LER,[LERR ]INTRUP + PUSHJ P,MAKACT + HRLI A,TFRAME ; CORRCT TYPE + PUSH TP,A + PUSH TP,B + PUSH TP,[0] + PUSH TP,[0] + MOVE A,PVSTOR+1 ; GET PROCESS + ADD A,[PROCID,,PROCID] ; POINT TO ID (ALSO LEVEL) + PUSH TP,BNDV + PUSH TP,A + MOVE A,PROCID(PVP) + ADDI A,1 ; BUMP ERROR LEVEL + PUSH TP,A + PUSH TP,PROCID+1(PVP) + PUSH P,A + + MOVE B,IMQUOTE READ-TABLE + PUSHJ P,IGVAL + PUSH TP,[TATOM,,-1] + PUSH TP,IMQUOTE READ-TABLE + GETYP C,A ; TO GVAL OF READ-TABLE ON ERROR AND + CAIE C,TVEC ; TOP ERRET'S + JRST .+4 + PUSH TP,A + PUSH TP,B + JRST .+3 + PUSH TP,$TUNBOUND + PUSH TP,[-1] + PUSH TP,[0] + PUSH TP,[0] + + PUSHJ P,SPECBIND ;BIND THE CRETANS + MOVE A,-1(P) ;RESTORE SWITHC + JUMPE A,NOERR ;IF 0, DONT PRINT ERROR MESS + PUSH TP,$TATOM + PUSH TP,EQUOTE *ERROR* + MCALL 0,TERPRI + MCALL 1,PRINC ;PRINT THE MESSAGE +NOERR: MOVE C,AB ;GET A COPY OF AB + +ERRLP: JUMPGE C,LEVPRT ;IF NONE, RE-ENTER READ-EVAL-PRINT LOOP + PUSH TP,$TAB + PUSH TP,C + MOVEI B,PRIN1 + GETYP A,(C) ; GET ARGS TYPE + CAIE A,TATOM + JRST ERROK + MOVE A,1(C) ; GET ATOM + HRRO A,2(A) + CAME A,[-1,,ERROBL+1] + CAMN A,ERROBL+1 ; DONT SKIP IF IN ERROR OBLIST + MOVEI B,PRINC ; DONT PRINT TRAILER +ERROK: PUSH P,B ; SAVE ROUTINE POINTER + PUSH TP,(C) + PUSH TP,1(C) + MCALL 0,TERPRI ; CRLF + POP P,B ; GET ROUTINE BACK + .MCALL 1,(B) + POP TP,C + SUB TP,[1,,1] + ADD C,[2,,2] ;BUMP SAVED AB + JRST ERRLP ;AND CONTINUE + + +LEVPRT: XCT INITFL ;LOAD MUDDLE INIT FILE IF FIRST TIME + MCALL 0,TERPRI + PUSH TP,$TATOM + PUSH TP,EQUOTE [LISTENING-AT-LEVEL ] + MCALL 1,PRINC ;PRINT LEVEL + PUSH TP,$TFIX ;READY TO PRINT LEVEL + HRRZ A,(P) ;GET LEVEL + SUB P,[2,,2] ;AND POP STACK + PUSH TP,A + MCALL 1,PRIN1 ;PRINT WITHOUT SPACES ETC. + PUSH TP,$TATOM ;NOW PROCESS + PUSH TP,EQUOTE [ PROCESS ] + MCALL 1,PRINC ;DONT SLASHIFY SPACES + MOVE PVP,PVSTOR+1 + PUSH TP,PROCID(PVP) ;NOW ID + PUSH TP,PROCID+1(PVP) + MCALL 1,PRIN1 + SKIPN C,CURPRI + JRST MAINLP + PUSH TP,$TFIX + PUSH TP,C + PUSH TP,$TATOM + PUSH TP,EQUOTE [ INT-LEVEL ] + MCALL 1,PRINC + MCALL 1,PRIN1 + JRST MAINLP ; FALL INTO MAIN LOOP + + ;ROUTINES FOR ERROR-LISTEN + +OBCHK: GETYP 0,A + CAIN 0,TOBLS + JRST CPOPJ1 ; WIN FOR SINGLE OBLIST + CAIE 0,TLIST ; IF LIST, MAKE SURE EACH IS AN OBLIST + JRST CPOPJ ; ELSE, LOSE + + JUMPE B,CPOPJ ; NIL ,LOSE + PUSH TP,A + PUSH TP,B + PUSH P,[0] ;FLAG FOR DEFAULT CHECKING + MOVEI 0,1000 ; VERY BIG NUMBER FOR CIRCULARITY TEST + +OBCHK0: INTGO + SOJE 0,OBLOSE ; CIRCULARITY TEST + HRRZ B,(TP) ; GET LIST POINTER + GETYP A,(B) + CAIE A,TOBLS ; SKIP IF WINNER + JRST DEFCHK ; CHECK FOR SPECIAL ATOM DEFAULT + HRRZ B,(B) + MOVEM B,(TP) + JUMPN B,OBCHK0 +OBWIN: AOS (P)-1 +OBLOSE: SUB TP,[2,,2] + SUB P,[1,,1] + POPJ P, + +DEFCHK: SKIPN (P) ; BEEN HERE BEFORE ? + CAIE A,TATOM ; OR, NOT AN ATOM ? + JRST OBLOSE ; YES, LOSE + MOVE A,(B)+1 + CAME A,MQUOTE DEFAULT + JRST OBLOSE ; LOSE + SETOM (P) ; SET FLAG + HRRZ B,(B) ; CHECK FOR END OF LIST + MOVEM B,(TP) + JUMPN B,OBCHK0 ; NOT THE END, CONTINUE LOOKING + JRST OBLOSE ; LOSE FOR DEFAULT AT THE END + + + +PUSH6: PUSH TP,[TATOM,,-1] + PUSH TP,B + PUSH TP,(C) + PUSH TP,1(C) + PUSH TP,[0] + PUSH TP,[0] + POPJ P, + + +MAKOB: PUSH TP,INITIAL + PUSH TP,INITIAL+1 + PUSH TP,ROOT + PUSH TP,ROOT+1 + MCALL 2,LIST + PUSH TP,$TATOM + PUSH TP,IMQUOTE OBLIST + PUSH TP,A + PUSH TP,B + MCALL 2,SETG + PUSH TP,[TATOM,,-1] + PUSH TP,IMQUOTE OBLIST + PUSH TP,A + PUSH TP,B + PUSH TP,[0] + PUSH TP,[0] + JRST NOTOBL + + +;THIS IS IT FOLKS...THE MAIN LOOP. READ, EVAL, PRINT + +MAINLP: MOVE A,$TATOM ;KLUDGE BY NDR LIKE ERROR TO LET LOOSER REDEFINE + MOVE B,IMQUOTE REP + PUSHJ P,ILVAL ;GET ITS LVAL TO SEE IF REDEFINED + GETYP C,A + CAIE C,TUNBOUND + JRST REPCHK + MOVE A,$TATOM ;SEE IF IT HAS GVAL SINCE NO LVAL + MOVE B,IMQUOTE REP + PUSHJ P,IGVAL + GETYP C,A + CAIN C,TUNBOUN + JRST IREPER +REPCHK: CAIN C,TSUBR + CAIE B,REPER + JRST .+2 + JRST IREPER +REREPE: PUSH TP,A + PUSH TP,B + GETYP A,-1(TP) + PUSHJ P,APLQ + JRST ERRREP + MCALL 1,APPLY ;LOOSER HAS REDEFINED SO CALL HIS + JRST MAINLP +IREPER: PUSH P,[0] ;INDICATE FALL THROUGH + JRST REPERF + +ERRREP: PUSH TP,[TATOM,,-1] + PUSH TP,IMQUOTE REP + PUSH TP,$TSUBR + PUSH TP,[REPER] + PUSH TP,[0] + PUSH TP,[0] + PUSHJ P,SPECBIN + PUSH TP,$TATOM + PUSH TP,EQUOTE NON-APPLICABLE-REP + PUSH TP,-11(TP) + PUSH TP,-11(TP) + MCALL 2,ERROR + SUB TP,[6,,6] + PUSHJ P,SSPECS + JRST REREPE + + +IMFUNCTION REPER,SUBR,REP +REPER: ENTRY 0 + PUSH P,[1] ;INDICATE DIRECT CALL +REPERF: MCALL 0,TERPRI + MCALL 0,READ + PUSH TP,A + PUSH TP,B + MOVE B,IMQUOTE L-INS + PUSHJ P,ILVAL ; ASSIGNED? + GETYP 0,A + CAIN 0,TLIST + + PUSHJ P,LSTTOF ; PUT LAST AS FIRST + MCALL 0,TERPRI + MCALL 1,EVAL + MOVE C,IMQUOTE LAST-OUT + PUSHJ P,CISET + PUSH TP,A + PUSH TP,B + MOVE B,IMQUOTE L-OUTS + PUSHJ P,ILVAL ; ASSIGNED? + GETYP 0,A + CAIN 0,TLIST + + CAME B,(TP) ; DONT STUFF IT INTO ITSELF + JRST STUFIT ; STUFF IT IN + GETYP 0,-1(TP) + CAIE 0,TLIST ; IF A LIST THE L-OUTS +STUFIT: PUSHJ P,LSTTOF ; PUT LAST AS FIRST + MCALL 1,PRIN1 + POP P,C ;FLAG FOR FALL THROUGH OR CALL + JUMPN C,FINIS ;IN CASE LOOSER CALLED REP + JRST MAINLP + +LSTTOF: SKIPN A,B + POPJ P, + + HRRZ C,(A) + JUMPE C,LSTTO2 + MOVEI D,(C) ; SAVE PTR TO 2ND ELEMENT + MOVEI 0,-1 ; LET THE LOSER LOSE (HA HA HA) + +LSTTO1: HRRZ C,(C) ; START SCAN + JUMPE C,GOTIT + HRRZ A,(A) + SOJG 0,LSTTO1 + +GOTIT: HRRZ C,(A) + HLLZS (A) + CAIE D,(C) ; AVOID CIRCULARITY + HRRM D,(C) + HRRM C,(B) + MOVE D,1(B) + MOVEM D,1(C) + GETYP D,(B) + PUTYP D,(C) + +LSTTO2: MOVSI A,TLIST + MOVE C,-1(TP) + MOVE D,(TP) + JRST LSTUF + +;FUNCTION TO RETRY A PREVIOUS FUNCTION CALL + +MFUNCTION RETRY,SUBR + + ENTRY + JUMPGE AB,RETRY1 ; USE MOST RECENT + CAMGE AB,[-2,,0] + JRST TMA + GETYP A,(AB) ; CHECK TYPE + CAIE A,TFRAME + JRST WTYP1 + MOVEI B,(AB) ; POINT TO ARG + JRST RETRY2 +RETRY1: MOVE B,IMQUOTE LER,[LERR ]INTRUP + PUSHJ P,ILOC ; LOCATIVE TO FRAME +RETRY2: PUSHJ P,CHFSWP ; CHECK VALIDITY AND SWAP IF NECESSARY + HRRZ 0,OTBSAV(B) ; CHECK FOR TOP + JUMPE 0,RESTAR ; YES RE-ENTER TOP LEVEL + PUSH TP,$TTB + PUSH TP,B ; SAVE FRAME + MOVE B,OTBSAV(B) ; GET PRVIOUS FOR UNBIND HACK + MOVEI C,-1(TP) + PUSHJ P,CHUNW ; CHECK ANY UNWINDING + CAME SP,SPSAV(TB) ; UNBINDING NEEDED? + PUSHJ P,SPECSTORE + MOVE P,PSAV(TB) ; GET OTHER STUFF + MOVE AB,ABSAV(B) + HLRE A,AB ; COMPUTE # OF ARGS + MOVNI A,-FRAMLN(A) ; MAKE TP POINT PAST FRAME + HRLI A,(A) + MOVE C,TPSAV(TB) ; COMPUTE TP + ADD C,A + MOVE TP,C + MOVE TB,B ; FIX UP TB + HRRZ C,FSAV(TB) ; GET FUNCTION + CAIL C,HIBOT + JRST (C) ; GO + GETYP 0,(C) ; RSUBR OR ENTRY? + CAIE 0,TATOM + CAIN 0,TRSUBR + JRST RETRNT + MOVS R,(C) ; SET UP R + HRRI R,(C) + MOVEI C,0 + JRST RETRN3 + +RETRNT: CAIE 0,TRSUBR + JRST RETRN1 + MOVE R,1(C) +RETRN4: HRRZ C,2(C) ; OFFSET +RETRN3: SKIPL M,1(R) + JRST RETRN5 +RETRN7: ADDI C,(M) + JRST (C) + +RETRN5: MOVEI D,(M) ; TOTAL OFFSET + MOVSS M + ADD M,PURVEC+1 + SKIPL M,1(M) + JRST RETRN6 + ADDI M,(D) + JRST RETRN7 + +RETRN6: HLRZ A,1(R) + PUSH P,D + PUSH P,C + PUSHJ P,PLOAD + JRST RETRER ; LOSER + POP P,C + POP P,D + MOVE M,B + JRST RETRN7 + +RETRN1: HRL C,(C) ; FIX LH + MOVE B,1(C) + PUSH TP,$TVEC + PUSH TP,C + PUSHJ P,IGVAL + GETYP 0,A + MOVE C,(TP) + SUB TP,[2,,2] + CAIE 0,TRSUBR + JRST RETRN2 + MOVE R,B + JRST RETRN4 + +RETRN2: ERRUUO EQUOTE CANT-RETRY-ENTRY-GONE + +RETRER: ERRUUO EQUOTE PURE-LOAD-FAILURE + + +;FUNCTION TO DO ERROR RETURN + +IMFUNCTION ERRET,SUBR + + ENTRY + HLRE A,AB ; -2*# OF ARGS + JUMPGE A,STP ; RESTART PROCESS + ASH A,-1 ; -# OF ARGS + AOJE A,ERRET2 ; NO FRAME SUPPLIED + AOJL A,TMA + ADD AB,[2,,2] + PUSHJ P,OKFRT + JRST WTYP2 + SUB AB,[2,,2] + PUSHJ P,CHPROC ; POINT TO FRAME SLOT + JRST ERRET3 +ERRET2: MOVE B,IMQUOTE LER,[LERR ]INTRUP + PUSHJ P,ILVAL ; GET ITS VALUE +ERRET3: PUSH TP,A + PUSH TP,B + MOVEI B,-1(TP) + PUSHJ P,CHFSWP ; CHECK VALIDITY AND SWAP IF NECESSARY + HRRZ 0,OTBSAV(B) ; TOP LEVEL? + JUMPE 0,TOPLOS + PUSHJ P,CHUNW ; ANY UNWINDING + JRST CHFINIS + + +; FUNCTION TO RETURN LAST ERROR FRAME OR PREVIOUS FRAME + +IMFUNCTION FRAME,SUBR + ENTRY + SETZB A,B + JUMPGE AB,FRM1 ; DEFAULT CASE + CAMG AB,[-3,,0] ; SKIP IF OK ARGS + JRST TMA + PUSHJ P,OKFRT ; A FRAME OR SIMILAR THING? + JRST WTYP1 + +FRM1: PUSHJ P,CFRAME ; GO TO INTERNAL + JRST FINIS + +CFRAME: JUMPN A,FRM2 ; ARG SUPPLIED? + MOVE B,IMQUOTE LER,[LERR ]INTRUP + PUSHJ P,ILVAL + JRST FRM3 +FRM2: PUSHJ P,CHPROC ; CHECK FOR PROCESS + PUSH TP,A + PUSH TP,B + MOVEI B,-1(TP) ; POINT TO SLOT + PUSHJ P,CHFRM ; CHECK IT + MOVE C,(TP) ; GET FRAME BACK + MOVE B,OTBSAV(C) ;GET PREVIOUS FRAME + SUB TP,[2,,2] + TRNN B,-1 ; SKIP IF OK + JRST TOPLOSE + +FRM3: JUMPN B,FRM4 ; JUMP IF WINNER + MOVE B,IMQUOTE THIS-PROCESS + PUSHJ P,ILVAL ; GET PROCESS OF INTEREST + GETYP A,A ; CHECK IT + CAIN A,TUNBOU + MOVE B,PVSTOR+1 ; USE CURRENT + MOVEI A,PVLNT*2+1(B) ; POINT TO DOPE WORDS + MOVE B,TBINIT+1(B) ; AND BASE FRAME +FRM4: HLL B,OTBSAV(B) ;TIME + HRLI A,TFRAME + POPJ P, + +OKFRT: AOS (P) ;ASSUME WINNAGE + GETYP 0,(AB) + MOVE A,(AB) + MOVE B,1(AB) + CAIE 0,TFRAME + CAIN 0,TENV + POPJ P, + CAIE 0,TPVP + CAIN 0,TACT + POPJ P, + SOS (P) + POPJ P, + +CHPROC: GETYP 0,A ; TYPE + CAIE 0,TPVP + POPJ P, ; OK + MOVEI A,PVLNT*2+1(B) + CAMN B,PVSTOR+1 ; THIS PROCESS? + JRST CHPRO1 + MOVE B,TBSTO+1(B) + JRST FRM4 + +CHPRO1: MOVE B,OTBSAV(TB) + JRST FRM4 + +; FUNCTION TO RETURN ARGS TUPLE FOR A FRAME + +MFUNCTION ARGS,SUBR + ENTRY 1 + PUSHJ P,OKFRT ; CHECK FRAME TYPE + JRST WTYP1 + PUSHJ P,CARGS + JRST FINIS + +CARGS: PUSHJ P,CHPROC + PUSH TP,A + PUSH TP,B + MOVEI B,-1(TP) ; POINT TO FRAME SLOT + PUSHJ P,CHFRM ; AND CHECK FOR VALIDITY + MOVE C,(TP) ; FRAME BACK + MOVSI A,TARGS +CARGS1: GETYP 0,FSAV(C) ; IS THIS A FUNNY ONE + CAIE 0,TCBLK ; SKIP IF FUNNY + JRST .+3 ; NO NORMAL + MOVE C,OTBSAV(C) ; ASSOCIATE WITH PREVIOUS FRAME + JRST CARGS1 + HLR A,OTBSAV(C) ; TIME IT AND + MOVE B,ABSAV(C) ; GET POINTER + SUB TP,[2,,2] ; FLUSH CRAP + POPJ P, + +; FUNCTION TO RETURN FUNCTION ASSOCIATED WITH A FRAME + +MFUNCTION FUNCT,SUBR + ENTRY 1 ; FRAME ARGUMENT + PUSHJ P,OKFRT ; CHECK TYPE + JRST WTYP1 + PUSHJ P,CFUNCT + JRST FINIS + +CFUNCT: PUSHJ P,CHPROC + PUSH TP,A + PUSH TP,B + MOVEI B,-1(TP) + PUSHJ P,CHFRM ; CHECK IT + MOVE C,(TP) ; RESTORE FRAME + HRRZ A,FSAV(C) ;FUNCTION POINTER + CAIL A,HIBOT + SKIPA B,@-1(A) ;NO, GET SUBR'S NAME POINTER + MOVE B,(A)+3 ;YES, GET RSUBR'S NAME ENTRY + MOVSI A,TATOM + SUB TP,[2,,2] + POPJ P, + +BADFRAME: + ERRUUO EQUOTE FRAME-NO-LONGER-EXISTS + + +TOPLOSE: + ERRUUO EQUOTE TOP-LEVEL-FRAME + + + + +; ROUTINE TO HANG INDEFINITELY WITH INTERRUPTS ENABLED + +MFUNCTION HANG,SUBR + + ENTRY + + JUMPGE AB,HANG1 ; NO PREDICATE + CAMGE AB,[-3,,] + JRST TMA + PUSH TP,(AB) + PUSH TP,1(AB) + PUSHJ P,CHKPRD +REHANG: MOVE A,[PUSHJ P,CHKPRH] + MOVEM A,ONINT ; CHECK PREDICATE AFTER ANY INTERRUPT +HANG1: ENABLE ;LET OURSELVES BE INTERRUPTED OUT + PUSHJ P,%HANG + DISABLE ;PREVENT INTERRUPTS AT RANDOM TIMES + SETZM ONINT + MOVE A,$TATOM + MOVE B,IMQUOTE T + JRST FINIS + + +; ROUTINE TO SLEEP FOR POSITIVE NUMBER OF SECONDS WITH INTERRUPTS ENABLED +; ARGUMENT SHOULD BE OF TYPE FIX OR FLOAT AND NON-NEGATIVE + +MFUNCTION SLEEP,SUBR + + ENTRY + + JUMPGE AB,TFA + CAML AB,[-3,,] + JRST SLEEP1 + CAMGE AB,[-5,,] + JRST TMA + PUSH TP,2(AB) + PUSH TP,3(AB) + PUSHJ P,CHKPRD +SLEEP1: GETYP 0,(AB) + CAIE 0,TFIX + JRST .+5 + MOVE B,1(AB) + JUMPL B,OUTRNG ;ARG SHOULDNT BE NEGATIVE + IMULI B,30. ;CONVERT TO # OF THIRTIETHS OF A SECOND + JRST SLEEPR ;GO SLEEP + CAIE 0,TFLOAT ;IF IT WASNT FIX MAKE SURE IT IS FLOAT + JRST WTYP1 ;WRONG TYPE ARG + MOVE B,1(AB) + FMPR B,[30.0] ;CONVERT TO FLOATING # OF THIRTIETHS OF A SECOND + MULI B,400 ;KLUDGE TO FIX IT + TSC B,B + ASH C,(B)-243 + MOVE B,C ;MOVE THE FIXED NUMBER INTO B + JUMPL B,OUTRNG ;CHECK TO SEE THAT WE HAVE POSITIVE NUMBER +SLEEPR: MOVE A,B +RESLEE: MOVE B,[PUSHJ P,CHKPRS] + CAMGE AB,[-3,,] + MOVEM B,ONINT + ENABLE + PUSHJ P,%SLEEP + DISABLE + SETZM ONINT + MOVE A,$TATOM + MOVE B,IMQUOTE T + JRST FINIS + +CHKPRH: PUSH P,B + MOVEI B,HANGP + JRST .+3 + +CHKPRS: PUSH P,B + MOVEI B,SLEEPP + HRRM B,LCKINT + SETZM ONINT ; TURN OFF FEATURE FOR NOW + POP P,B + POPJ P, + +HANGP: SKIPA B,[REHANG] +SLEEPP: MOVEI B,RESLEE + PUSH P,B +CHKPRD: PUSH P,A + DISABLE + PUSH TP,(TB) + PUSH TP,1(TB) + MCALL 1,EVAL + GETYP 0,A + CAIE 0,TFALSE + JRST FINIS + POP P,A + POPJ P, + +MFUNCTION VALRET,SUBR +; SUBR TO VALRET A STRING TO SUPERIOR ITS PROCESS + + ENTRY 1 + GETYP A,(AB) ; GET TYPE OF ARGUMENT + CAIN A,TFIX ; FIX? + JRST VALRT1 + CAIE A,TCHSTR ; IS IT A CHR STRING? + JRST WTYP1 ; NO...ERROR WRONG TYPE + PUSHJ P,CSTACK ; COPY THE CHR STRING TO THE STACK + ; CSTACK IS IN ATOMHK + MOVEI B,0 ; ASCIZ TERMINATOR + EXCH B,(P) ; STORE AND RETRIEVE COUNT + +; CALCULATE THE BEGINNING ADDR OF THE STRING + MOVEI A,-1(P) ; GET ADDR OF TOP OF STACK + SUBI A,-1(B) ; GET STARTING ADDR + PUSHJ P,%VALRE ; PASS UP TO MONITOR + JRST IFALSE ; IF HE RETURNS, RETURN FALSE + +VALRT1: MOVE A,1(AB) + PUSHJ P,%VALFI + JRST IFALSE + +MFUNCTION LOGOUT,SUBR + +; SUBR TO DO A .LOGOUT (VALID ONLY AT TOP LEVEL) + ENTRY 0 + PUSHJ P,%TOPLQ ; SKIP IF AT TOP LEVEL + JRST IFALSE + PUSHJ P,CLOSAL + PUSHJ P,%LOGOUT ; TRY TO FLUSH + JRST IFALSE ; COULDN'T DO IT...RETURN FALSE + +; FUNCTS TO GET UNAME AND JNAME + +; GET XUNAME (REAL UNAME) +MFUNCTION XUNAME,SUBR + + ENTRY 0 + + PUSHJ P,%RXUNA + JRST RSUJNM + JRST FINIS ; 10X ROUTINES SKIP + +MFUNCTION UNAME,SUBR + + ENTRY 0 + + PUSHJ P,%RUNAM + JRST RSUJNM + JRST FINIS + +; REAL JNAME +MFUNCTION XJNAME,SUBR + + ENTRY 0 + + PUSHJ P,%RXJNA + JRST RSUJNM + +MFUNCTION JNAME,SUBR + + ENTRY 0 + + PUSHJ P,%RJNAM + JRST RSUJNM + +; FUNCTION TO SET AND READ GLOBAL SNAME + +MFUNCTION SNAME,SUBR + + ENTRY + + JUMPGE AB,SNAME1 + CAMG AB,[-3,,] + JRST TMA + GETYP A,(AB) ; ARG MUST BE STRING + CAIE A,TCHSTR + JRST WTYP1 + PUSH TP,$TATOM + PUSH TP,IMQUOTE SNM + PUSH TP,(AB) + PUSH TP,1(AB) + MCALL 2,SETG + JRST FINIS + +SNAME1: MOVE B,IMQUOTE SNM + PUSHJ P,IDVAL1 + GETYP 0,A + CAIN 0,TCHSTR + JRST FINIS + MOVE A,$TCHSTR + MOVE B,CHQUOTE + JRST FINIS + +RSUJNM: PUSHJ P,6TOCHS ; CONVERT IT + JRST FINIS + + +SGSNAM: MOVE B,IMQUOTE SNM + PUSHJ P,IDVAL1 + GETYP 0,A + CAIE 0,TCHSTR + JRST SGSN1 + + PUSH TP,A + PUSH TP,B + PUSHJ P,STRTO6 + POP P,A + SUB TP,[2,,2] + JRST .+2 + +SGSN1: MOVEI A,0 + PUSHJ P,%SSNAM ; SET SNAME IN SYSTEM + POPJ P, + + + +;THIS SUBROUTINE ALLOCATES A NEW PROCESS +;TAKES TP-STACK SIZE (2*WORDS) IN A AND P-STACK SIZE (WORDS) IN B +;IS CALLED BY PUSHJ P,. RETURNS IN A AND B A NEW PROCESS. + +ICR: PUSH P,A + PUSH P,B + MOVEI A,PVLNT ;SETUP CALL TO VECTOR FOR PVP + PUSHJ P,IVECT ;GOBBLE A VECTOR + HRLI C,PVBASE ;SETUP A BLT POINTER + HRRI C,(B) ;GET INTO ADDRESS + BLT C,PVLNT*2-1(B) ;COPY A PROTOTYPE INTO NEW PVP + MOVSI C,400000+SPVP+.VECT. ;SET SPECIAL TYPE + MOVEM C,PVLNT*2(B) ;CLOBBER IT IN + PUSH TP,A ;SAVE THE RESULTS OF VECTOR + PUSH TP,B + + PUSH TP,$TFIX ;GET A UNIFORM VECTOR + POP P,B + PUSH TP,B + MCALL 1,UVECTOR + ADD B,[PDLBUF-2,,-1] ;FUDGE WITH BUFFER + MOVE C,(TP) ;REGOBBLE PROCESS POINTER + MOVEM B,PSTO+1(C) ;STORE IN ALL HOMES + MOVEM B,PBASE+1(C) + + + POP P,A ;PREPARE TO CREATE A TEMPORARY PDL + PUSHJ P,IVECT ;GET THE TEMP PDL + ADD B,[PDLBUF,,0] ;PDL GROWTH HACK + MOVE C,(TP) ;RE-GOBBLE NEW PVP + SUB B,[1,,1] ;FIX FOR STACK + MOVEM B,TPBASE+1(C) + +;SETUP INITIAL BINDING + + PUSH B,$TBIND + MOVEM B,SPBASE+1(C) ;SAVE AS BASE OF SP + MOVEM B,SPSTO+1(C) ;AND CURRENT THEREOF + MOVEM B,CURFCN+1(C) ; AND AS CURRENT FCN FOR SPEC/UNSPEC LOGIC + PUSH B,IMQUOTE THIS-PROCESS + PUSH B,$TPVP ;GIVE IT PROCESS AS VALUE + PUSH B,C + ADD B,[2,,2] ;FINISH FRAME + MOVEM B,TPSTO+1(C) ;MAKE THIS THE CURRENT STACK POINTER + MOVEM C,PVPSTO+1(C) ;SAVE THE NEW PVP ITSELF + AOS A,IDPROC ;GOBBLE A UNIQUE PROCESS I.D. + MOVEM A,PROCID+1(C) ;SAVE THAT ALSO + AOS A,PTIME ; GET A UNIQUE BINDING ID + MOVEM A,BINDID+1(C) + + MOVSI A,TPVP ;CLOBBER THE TYPE + MOVE B,(TP) ;AND POINTER TO PROCESS + SUB TP,[2,,2] + POPJ P, + +;MINI ROUTINE TO CALL VECTOR WITH COUNT IN A + +IVECT: PUSH TP,$TFIX + PUSH TP,A + MCALL 1,VECTOR ;GOBBLE THE VECTOR + POPJ P, + + +;SUBROUTINE TO SWAP A PROCESS IN +;CALLED WITH JSP A,SWAP AND NEW PVP IN B + +SWAP: ;FIRST STORE ALL THE ACS + + MOVE PVP,PVSTOR+1 + MOVE SP,$TSP ; STORE SPSAVE + MOVEM SP,SPSTO(PVP) + MOVE SP,SPSTOR+1 + IRP A,,[SP,AB,TB,TP,P,M,R,FRM] + MOVEM A,A!STO+1(PVP) + TERMIN + + SETOM 1(TP) ; FENCE POST MAIN STACK + MOVEM TP,TPSAV(TB) ; CORRECT FRAME + SETZM PSAV(TB) ; CLEAN UP CURRENT FRAME + SETZM SPSAV(TB) + SETZM PCSAV(TB) + + MOVE E,PVP ;RETURN OLD PROCESS IN E + MOVE PVP,D ;AND MAKE NEW ONE BE D + MOVEM PVP,PVSTOR+1 + +SWAPIN: + ;NOW RESTORE NEW PROCESSES AC'S + + MOVE PVP,PVSTOR+1 + IRP A,,[AB,TB,SP,TP,P,M,R,FRM] + MOVE A,A!STO+1(PVP) + TERMIN + + SETZM SPSTO(PVP) + MOVEM SP,SPSTOR+1 + JRST (C) ;AND RETURN + + + + +;SUBRS ASSOCIATED WITH TYPES + +;TYPE (ITYPE) ARE FUNCTIONS TO RETURN THE ATOMIC NAME OF THE +;TYPE OF A GOODIE. TYPE TAKES ITS ARGS ON AP AND RETURNS IN A AND B. +;ITYPE TAKES ITS ARGS IN A AND B AND RETURNS IN SAME (B=0) FOR INVALID +;TYPECODE. +MFUNCTION TYPE,SUBR + + ENTRY 1 + GETYP A,(AB) ;TYPE INTO A +TYPE1: PUSHJ P,ITYPE ;GO TO INTERNAL + JUMPN B,FINIS ;GOOD RETURN +TYPERR: ERRUUO EQUOTE TYPE-UNDEFINED + +CITYPE: GETYP A,A ; GET TYPE FOR COMPILER CALL +ITYPE: LSH A,1 ;TIMES 2 + HRLS A ;TO BOTH SIDES + ADD A,TYPVEC+1 ;GET ACTUAL LOCATION + JUMPGE A,TYPERR ;LOST, TYPE OUT OF BOUNDS + MOVE B,1(A) ;PICKUP TYPE + HLLZ A,(A) + POPJ P, + +; PREDICATE -- IS OBJECT OF TYPE SPECIFIED + +MFUNCTION %TYPEQ,SUBR,[TYPE?] + + ENTRY + + MOVE D,AB ; GET ARGS + ADD D,[2,,2] + JUMPGE D,TFA + MOVE A,(AB) + HLRE C,D + MOVMS C + ASH C,-1 ; FUDGE + PUSHJ P,ITYPQ ; GO INTERNAL + JFCL + JRST FINIS + +ITYPQ: GETYP A,A ; OBJECT + PUSHJ P,ITYPE +TYPEQ0: SOJL C,CIFALS + GETYP 0,(D) + CAIE 0,TATOM ; Type name must be an atom + JRST WRONGT + CAMN B,1(D) ; Same as the OBJECT? + JRST CPOPJ1 ; Yes, return type name + ADD D,[2,,2] + JRST TYPEQ0 ; No, continue comparing + +CIFALS: MOVEI B,0 + MOVSI A,TFALSE + POPJ P, + +CTYPEQ: SOJE A,CIFALS ; TREAT NO ARGS AS FALSE + MOVEI D,1(A) ; FIND BASE OF ARGS + ASH D,1 + HRLI D,(D) + SUBM TP,D ; D POINTS TO BASE + MOVE E,D ; SAVE FOR TP RESTORE + ADD D,[3,,3] ; FUDGE + MOVEI C,(A) ; NUMBER OF TYPES + MOVE A,-2(D) + PUSHJ P,ITYPQ + JFCL ; IGNORE SKIP FOR NOW + MOVE TP,E ; SET TP BACK + JUMPL B,CPOPJ1 ; SKIP + POPJ P, + +; Entries to get type codes for types for fixing up RSUBRs and assembling + +MFUNCTION %TYPEC,SUBR,[TYPE-C] + + ENTRY + + JUMPGE AB,TFA + GETYP 0,(AB) + CAIE 0,TATOM + JRST WTYP1 + MOVE B,1(AB) + CAMGE AB,[-3,,0] ; skip if only type name given + JRST GTPTYP + MOVE C,IMQUOTE ANY + +TYPEC1: PUSHJ P,CTYPEC ; go to internal + JRST FINIS + +GTPTYP: CAMGE AB,[-5,,0] + JRST TMA + GETYP 0,2(AB) + CAIE 0,TATOM + JRST WTYP2 + MOVE C,3(AB) + JRST TYPEC1 + +CTYPEC: PUSH P,C ; save primtype checker + PUSHJ P,TYPFND ; search type vector + JRST CTPEC2 ; create the poor loser + POP P,B + CAMN B,IMQUOTE ANY + JRST CTPEC1 + CAMN B,IMQUOTE TEMPLATE + JRST TCHK + PUSH P,D + HRRZ A,(A) + ANDI A,SATMSK + PUSH P,A + PUSHJ P,TYPLOO + HRRZ 0,(A) + ANDI 0,SATMSK + CAME 0,(P) + JRST TYPDIF + MOVE D,-1(P) + SUB P,[2,,2] +CTPEC1: MOVEI B,(D) + MOVSI A,TTYPEC + POPJ P, +TCHK: PUSH P,D ; SAVE TYPE + MOVE A,D ; GO TO SAT + PUSHJ P,SAT + CAIG A,NUMSAT ; SKIP IF A TEMPLATE + JRST TYPDIF + POP P,D ; RESTORE TYPE + JRST CTPEC1 + +CTPEC2: POP P,C ; GET BACK PRIMTYPE + SUBM M,(P) + PUSH TP,$TATOM + PUSH TP,B + CAMN C,IMQUOTE ANY + JRST CTPEC3 + PUSH TP,$TATOM + PUSH TP,C + MCALL 2,NEWTYPE ; CREATE THE POOR GUY + MOVE C,IMQUOTE ANY + SUBM M,(P) ; UNRELATIVIZE + JRST CTYPEC + +CTPEC3: HRRZ 0,FSAV(TB) + CAIE 0,%TYPEC + CAIN 0,%TYPEW + JRST TYPERR + + MCALL 1,%TYPEC + JRST MPOPJ + +MFUNCTION %TYPEW,SUBR,[TYPE-W] + + ENTRY + + JUMPGE AB,TFA + GETYP 0,(AB) + CAIE 0,TATOM + JRST WTYP1 + MOVEI D,0 + MOVE C,IMQUOTE ANY + MOVE B,1(AB) + CAMGE AB,[-3,,0] + JRST CTYPW1 + +CTYPW3: PUSHJ P,CTYPEW + JRST FINIS + +CTYPW1: GETYP 0,2(AB) + CAIE 0,TATOM + JRST WTYP2 + CAMGE AB,[-5,,0] ; JUMP IF RH IS GIVEN + JRST CTYPW2 +CTYPW5: MOVE C,3(AB) + JRST CTYPW3 + +CTYPW2: CAMGE AB,[-7,,0] + JRST TMA + GETYP 0,4(AB) + CAIE 0,TFIX + JRST WRONGT + MOVE D,5(AB) + JRST CTYPW5 + +CTYPEW: PUSH P,D + PUSHJ P,CTYPEC ; GET CODE IN B + POP P,B + HRLI B,(D) + MOVSI A,TTYPEW + POPJ P, + +MFUNCTION %VTYPE,SUBR,[VALID-TYPE?] + + ENTRY 1 + + GETYP 0,(AB) + CAIE 0,TATOM + JRST WTYP1 + MOVE B,1(AB) + + PUSHJ P,CVTYPE + JFCL + JRST FINIS + +CVTYPE: PUSHJ P,TYPFND ; LOOK IT UP + JRST PFALS + + MOVEI B,(D) + MOVSI A,TTYPEC + JRST CPOPJ1 + +PFALS: MOVEI B,0 + MOVSI A,TFALSE + POPJ P, + +;PRIMTTYPE RETURNS THE TYPE ATOM OF A PRIMITIVE TYPE IN A CLASS + +STBL: REPEAT NUMSAT,SETZ MQUOTE INTERNAL-TYPE + +LOC STBL + +IRP A,,[[1WORD,WORD],[2WORD,LIST],[NWORD,UVECTOR],[2NWORD,VECTOR],[STORE,STORAGE] +[ARGS,TUPLE],[FRAME,FRAME],[ATOM,ATOM],[LOCID,LOCD],[CHSTR,STRING],[OFFS,OFFSET,1] +[PVP,PROCESS,1],[ASOC,ASOC,1],[LOCA,LOCA],[LOCS,LOCS],[LOCU,LOCU],[LOCV,LOCV] +[LOCL,LOCL],[LOCN,LOCAS],[LOCT,LOCT,1],[LOCR,LOCR],[LOCB,LOCB,1],[BYTE,BYTES,1]] +IRP B,C,[A] +LOC STBL+S!B +IRP X,Y,[C] +IFSE [Y],SETZ IMQUOTE X +IFSN [Y],SETZ MQUOTE X +.ISTOP +TERMIN +.ISTOP + +TERMIN +TERMIN + +LOC STBL+NUMSAT+1 + + +MFUNCTION TYPEPRIM,SUBR + + ENTRY 1 + GETYP A,(AB) + CAIE A,TATOM + JRST NOTATOM + MOVE B,1(AB) + PUSHJ P,CTYPEP + JRST FINIS + +CTYPEP: PUSHJ P,TYPLOO ; CONVERT ATOM TO CODE + HRRZ A,(A) ; SAT TO A + ANDI A,SATMSK + JRST PTYP1 + +MFUNCTION PTSATC,SUBR,[PRIMTYPE-C] + + ENTRY 1 + + GETYP A,(AB) + CAIE A,TATOM + JRST WTYP1 + MOVE B,1(AB) + PUSHJ P,CPRTYC + JRST FINIS + +CPRTYC: PUSHJ P,TYPLOO + MOVE B,(A) + ANDI B,SATMSK + MOVSI A,TSATC + POPJ P, + + +IMFUNCTION PRIMTYPE,SUBR + + ENTRY 1 + + MOVE A,(AB) ;GET TYPE + PUSHJ P,CPTYPE + JRST FINIS + +CPTYPE: GETYP A,A + PUSHJ P,SAT ;GET SAT +PTYP1: JUMPE A,TYPERR + MOVE B,IMQUOTE TEMPLATE + CAIG A,NUMSAT ; IF BIG SAT, THEN TEMPLATE + MOVE B,@STBL(A) + MOVSI A,TATOM + POPJ P, + + +; RSUBR MAKES A VECTOR INTO AN OBJECT OF TYPE RSUBR, ALSO SLIGHTLY MUNGING IT + +IMFUNCTION RSUBR,SUBR + ENTRY 1 + + GETYP A,(AB) + CAIE A,TVEC ; MUST BE VECTOR + JRST WTYP1 + MOVE B,1(AB) ; GET IT + GETYP A,(B) ; CHECK 1ST ELEMENTS TYPE + CAIN A,TPCODE ; PURE CODE + JRST .+3 + CAIE A,TCODE + JRST NRSUBR + HLRM B,(B) ; CLOBEER SPECIAL COUNT FIELD + MOVSI A,TRSUBR + JRST FINIS + +NRSUBR: ERRUUO EQUOTE FIRST-ELEMENT-OF-VECTOR-NOT-CODE + +; ROUTINE TO GENERATE ENTRYY OTHER THAN FIRST TO RSUBRR + +IMFUNCTION MENTRY,SUBR,[RSUBR-ENTRY] + + ENTRY 2 + + GETYP 0,(AB) ; TYPE OF ARG + CAIE 0,TVEC ; BETTER BE VECTOR + JRST WTYP1 + GETYP 0,2(AB) + CAIE 0,TFIX + JRST WTYP2 + MOVE B,1(AB) ; GET VECTOR + CAML B,[-3,,0] + JRST BENTRY + GETYP 0,(B) ; FIRST ELEMENT + CAIE 0,TRSUBR + JRST MENTR1 +MENTR2: GETYP 0,2(B) + CAIE 0,TATOM + JRST BENTRY + MOVE C,3(AB) + HRRM C,2(B) ; OFFSET INTO VECTOR + HLRM B,(B) + MOVSI A,TENTER + JRST FINIS + +MENTR1: CAIE 0,TATOM + JRST BENTRY + MOVE B,1(B) ; GET ATOM + PUSHJ P,IGVAL ; GET VAL + GETYP 0,A + CAIE 0,TRSUBR + JRST BENTRY + MOVE C,1(AB) ; RESTORE B + MOVEM A,(C) + MOVEM B,1(C) + MOVE B,C + JRST MENTR2 + +BENTRY: ERRUUO EQUOTE BAD-VECTOR + +; SUBR TO GET ENTRIES OFFSET + +MFUNCTION LENTRY,SUBR,[ENTRY-LOC] + + ENTRY 1 + + GETYP 0,(AB) + CAIE 0,TENTER + JRST WTYP1 + MOVE B,1(AB) + HRRZ B,2(B) + MOVSI A,TFIX + JRST FINIS + +; RETURN FALSE + +RTFALS: MOVSI A,TFALSE + MOVEI B,0 + POPJ P, + +;SUBROUTINE CALL FOR RSUBRs +RCALL: SUBM M,(P) ;CALCULATE PC's OFFSET IN THE RSUBR + HRLI 0,400000 ; DONT LOSE IN MULTI SEG MODE + + PUSHJ P,@0 ;GO TO THE PROPER SUBROUTINE + SUBM M,(P) ;RECONSTITUTE THE RSUBR's PC + POPJ P, + + + +;CHTYPE TAKES TWO ARGUMENTS. ANY GOODIE AND A AN ATOMIC TYPE NAME +;IT CHECKS THE STORAGE ALLOCATION TYPES OF THE TWO ARE THE SAME AND +;IF THEY ARE CHANGES THE TYPE OF THE FIRST TO THAT NAME D IN THE SECOND + +MFUNCTION CHTYPE,SUBR + + ENTRY 2 + GETYP A,2(AB) ;FIRST CHECK THAT ARG 2 IS AN ATOM + CAIE A,TATOM + JRST NOTATOM + MOVE B,3(AB) ;AND TYPE NAME + PUSHJ P,TYPLOO ;GO LOOKUP TYPE +TFOUND: HRRZ B,(A) ;GOBBLE THE SAT + TRNE B,CHBIT ; SKIP IF CHTYPABLE + JRST CANTCH + TRNE B,TMPLBT ; TEMPLAT + HRLI B,-1 + AND B,[-1,,SATMSK] + GETYP A,(AB) ;NOW GET TYPE TO HACK + PUSHJ P,SAT ;FIND OUT ITS SAT + JUMPE A,TYPERR ;COMPLAIN + CAILE A,NUMSAT + JRST CHTMPL ; JUMP IF TEMPLATE DATA + CAIE A,(B) ;DO THEY AGREE? + JRST TYPDIF ;NO, COMPLAIN +CHTMP1: MOVSI A,(D) ;GET NEW TYPE + HRR A,(AB) ; FOR DEFERRED GOODIES + JUMPL B,CHMATC ; CHECK IT + MOVE B,1(AB) ;AND VALUE + JRST FINIS + +CHTMPL: MOVE E,1(AB) ; GET ARG + HLRZ A,(E) + ANDI A,SATMSK + MOVE 0,3(AB) ; SEE IF TO "TEMPLATE" + CAMN 0,IMQUOTE TEMPLATE + JRST CHTMP1 + TLNN E,-1 ; SKIP IF RESTED + CAIE A,(B) + JRST TYPDIF + JRST CHTMP1 + +CHMATC: PUSH TP,A + PUSH TP,1(AB) ; SAVE GOODIE + MOVSI A,TATOM + MOVE B,3(AB) + MOVSI C,TATOM + MOVE D,IMQUOTE DECL + PUSHJ P,IGET ; FIND THE DECL + PUSH TP,A + PUSH TP,B + MOVE C,(AB) + MOVE D,1(AB) ; NOW GGO TO MATCH + PUSHJ P,TMATCH + JRST CHMAT1 + SUB TP,[2,,2] +CHMAT2: POP TP,B + POP TP,A + JRST FINIS + +CHMAT1: POP TP,B + POP TP,A + MOVE C,-1(TP) + MOVE D,(TP) + PUSHJ P,TMATCH + JRST TMPLVI + JRST CHMAT2 + +TYPLOO: PUSHJ P,TYPFND + ERRUUO EQUOTE BAD-TYPE-NAME + POPJ P, + +TYPFND: HLRE A,B ; FIND DOPE WORDS + SUBM B,A ; A POINTS TO IT + HRRE D,(A) ; TYPE-CODE TO D + JUMPE D,CPOPJ + ANDI D,TYPMSK ; FLUSH FUNNY BITS + MOVEI A,(D) + ASH A,1 + HRLI A,(A) + ADD A,TYPVEC+1 +CPOPJ1: AOS (P) + POPJ P, + + +REPEAT 0,[ + MOVE A,TYPVEC+1 ;GOBBLE DOWN TYPE VECTOR + MOVEI D,0 ;INITIALIZE TYPE COUNTER +TLOOK: CAMN B,1(A) ;CHECK THIS ONE + JRST CPOPJ1 + ADDI D,1 ;BUMP COUNTER + AOBJP A,.+2 ;COUTN DOWN ON VECTOR + AOBJN A,TLOOK + POPJ P, +CPOPJ1: AOS (P) + POPJ P, +] + +TYPDIF: ERRUUO EQUOTE STORAGE-TYPES-DIFFER + + +TMPLVI: ERRUUO EQUOTE DECL-VIOLATION + + +; FUNCTION TO ADD A NEW TYPE TO THE WORLD WITH GIVEN PRIMITIVE TYPE + +MFUNCTION NEWTYPE,SUBR + + ENTRY + + HLRZ 0,AB ; CHEC # OF ARGS + CAILE 0,-4 ; AT LEAST 2 + JRST TFA + CAIGE 0,-6 + JRST TMA ; NOT MORE THAN 3 + GETYP A,(AB) ; GET 1ST ARGS TYPE (SHOULD BE ATOM) + GETYP C,2(AB) ; SAME WITH SECOND + CAIN A,TATOM ; CHECK + CAIE C,TATOM + JRST NOTATOM + + MOVE B,3(AB) ; GET PRIM TYPE NAME + PUSHJ P,TYPLOO ; LOOK IT UP + HRRZ A,(A) ; GOBBLE SAT + ANDI A,SATMSK + HRLI A,TATOM ; MAKE NEW TYPE + PUSH P,A ; AND SAVE + MOVE B,1(AB) ; SEE IF PREV EXISTED + PUSHJ P,TYPFND + JRST NEWTOK ; DID NOT EXIST BEFORE + MOVEI B,2(A) ; FOR POSSIBLE TMPLAT BIT + HRRZ A,(A) ; GET SAT + HRRZ 0,(P) ; AND PROPOSED + ANDI A,SATMSK + ANDI 0,SATMSK + CAIN 0,(A) ; SKIP IF LOSER + JRST NEWTFN ; O.K. + + ERRUUO EQUOTE TYPE-ALREADY-EXISTS + +NEWTOK: POP P,A + MOVE B,1(AB) ; NEWTYPE NAME + PUSHJ P,INSNT ; MUNG IN NEW TYPE + +NEWTFN: CAML AB,[-5,,] ; SKIP IF TEMPLAT SUPPLIED + JRST NEWTF1 + MOVEI 0,TMPLBT ; GET THE BIT + IORM 0,-2(B) ; INTO WORD + MOVE A,(AB) ; GET TYPE NAME + MOVE B,1(AB) + MOVSI C,TATOM + MOVE D,IMQUOTE DECL + PUSH TP,4(AB) ; GET TEMLAT + PUSH TP,5(AB) + PUSHJ P,IPUT +NEWTF1: MOVE A,(AB) + MOVE B,1(AB) ; RETURN NAME + JRST FINIS + +; SET UP GROWTH FIELDS + +IGROWT: SKIPA A,[111100,,(C)] +IGROWB: MOVE A,[001100,,(C)] + HLRE B,C + SUB C,B ; POINT TO DOPE WORD + MOVE B,TYPIC ; INDICATED GROW BLOCK + DPB B,A + POPJ P, + +INSNT: PUSH TP,A + PUSH TP,B ; SAVE NAME OF NEWTYPE + MOVE C,TYPBOT+1 ; CHECK GROWTH NEED + CAMGE C,TYPVEC+1 + JRST ADDIT ; STILL ROOM +GAGN: PUSHJ P,IGROWB ; SETUP BOTTOM GROWTH + SKIPE C,EVATYP+1 + PUSHJ P,IGROWT ; SET UP TOP GROWTH + SKIPE C,APLTYP+1 + PUSHJ P,IGROWT + SKIPE C,PRNTYP+1 + PUSHJ P,IGROWT + MOVE C,[11.,,5] ; SET UP INDICATOR FOR AGC + PUSHJ P,AGC ; GROW THE WORLD + AOJL A,GAGN ; BAD AGC LOSSAGE + MOVE 0,[-101,,-100] + ADDM 0,TYPBOT+1 ; FIX UP POINTER + +ADDIT: MOVE C,TYPVEC+1 + SUB C,[2,,2] ; ALLOCATE ROOM + MOVEM C,TYPVEC+1 + HLRE B,C ; PREPARE TO BLT + SUBM C,B ; C POINTS DOPE WORD END + HRLI C,2(C) ; GET BLT AC READY + BLT C,-3(B) + POP TP,-1(B) ; CLOBBER IT IN + POP TP,-2(B) + HLRE C,TYPVEC+1 ; GET CODE + MOVNS C + ASH C,-1 + SUBI C,1 + MOVE D,-1(B) ; B HAS POINTER TO TYPE VECTOR DOPE WORDS + MOVEI 0,(D) + CAIG 0,HIBOT ; IS ATOM PURE? + JRST ADDNOI ; NO, SO NO HACKING REQUIRED + PUSH P,C + MOVE B,D + PUSHJ P,IMPURIF ; DO IMPURE OF ATOM + MOVE C,TYPVEC+1 + HLRE B,C + SUBM C,B ; RESTORE B + POP P,C + MOVE D,-1(B) ; RESTORE D +ADDNOI: HLRE A,D + SUBM D,A + TLO C,400000 + HRRM C,(A) ; INTO "GROWTH" FIELD + POPJ P, + + +; Interface to interpreter for setting up tables associated with +; template data structures. +; A/ <-name of type>- +; B/ <-length ins>- +; C/ <-uvector of garbage collector code or 0> +; D/ <-uvector of GETTERs>- +; E/ <-uvector of PUTTERs>- + +CTMPLT: SUBM M,(P) ; could possibly gc during this stuff + PUSH TP,$TATOM ; save name of type + PUSH TP,A + PUSH P,B ; save length instr + HLRE A,TD.LNT+1 ; check for template slots left? + HRRZ B,TD.LNT+1 + SUB B,A ; point to dope words + HLRZ B,1(B) ; get real length + ADDI A,-2(B) + JUMPG A,GOODRM ; jump if ok + + PUSH TP,$TUVEC ; save getters and putters + PUSH TP,C + PUSH TP,$TUVEC ; save getters and putters + PUSH TP,D + PUSH TP,$TUVEC + PUSH TP,E + MOVEI A,10-2(B) ; grow it 10 by copying remember d.w. length + PUSH P,A ; save new length + PUSHJ P,CAFRE1 ; get frozen uvector + ADD B,[10,,10] ; rest it down some + HRL C,TD.LNT+1 ; prepare to BLT in + MOVEM B,TD.LNT+1 ; and save as new length vector + HRRI C,(B) ; destination + ADD B,(P) ; final destination address + BLT C,-12(B) + MOVE A,(P) ; length for new getters + PUSHJ P,CAFRE1 + HRL C,TD.GET+1 ; get old for copy + MOVEM B,TD.GET+1 + PUSHJ P,DOBLTS ; go fixup new uvector + MOVE A,(P) ; finally putters + PUSHJ P,CAFRE1 + HRL C,TD.PUT+1 + MOVEM B,TD.PUT+1 + PUSHJ P,DOBLTS ; go fixup new uvector + MOVE A,(P) ; finally putters + PUSHJ P,CAFRE1 + HRL C,TD.AGC+1 + MOVEM B,TD.AGC+1 + PUSHJ P,DOBLTS ; go fixup new uvector + SUB P,[1,,1] ; flush stack craft + MOVE E,(TP) + MOVE D,-2(TP) + MOVE C,-4(TP) ;GET TD.AGC + SUB TP,[6,,6] + +GOODRM: MOVE B,TD.LNT+1 ; move down to fit new guy + SUB B,[1,,1] ; will always win due to prev checks + MOVEM B,TD.LNT+1 + HRLI B,1(B) + HLRE A,TD.LNT+1 + MOVNS A + ADDI A,-1(B) ; A/ final destination + BLT B,-1(A) + POP P,(A) ; new length ins munged in + HLRE A,TD.LNT+1 + MOVNS A ; A/ offset for other guys + PUSH P,A ; save it + ADD A,TD.GET+1 ; point for storing uvs of ins + MOVEM D,-1(A) + MOVE A,(P) + ADD A,TD.PUT+1 + MOVEM E,-1(A) ; store putter also + MOVE A,(P) + ADD A,TD.AGC+1 + MOVEM C,-1(A) ; store putter also + POP P,A ; compute primtype + ADDI A,NUMSAT + PUSH P,A + MOVE B,(TP) ; ready to mung type vector + SUB TP,[2,,2] + PUSHJ P,TYPFND ; CHECK TO SEE WHETHER TEMPLATE EXISTS + JRST NOTEM + POP P,C ; GET SAT + HRRM C,(A) + JRST MPOPJ +NOTEM: POP P,A ; RESTORE SAT + HRLI A,TATOM ; GET TYPE + PUSHJ P,INSNT ; INSERT INTO VECTOR + JRST MPOPJ + +; this routine copies GET and PUT vectors into new ones + +DOBLTS: HRRI C,(B) + ADD B,-1(P) + BLT C,-11(B) ; zap those guys in + MOVEI A,TUVEC ; mung in uniform type + PUTYP A,(B) + MOVEI C,-7(B) ; zero out remainder of uvector + HRLI C,-10(B) + SETZM -1(C) + BLT C,-1(B) + POPJ P, + + +; FUNCTIONS TO SET UP EVALUATION AND APPLICATION RULES FOR DATA TYPES + +MFUNCTION EVALTYPE,SUBR + + ENTRY + + PUSHJ P,CHKARG ; VERIFY WINNAGE IN ARGS + MOVEI A,EVATYP ; POINT TO TABLE + MOVEI E,EVTYPE ; POINT TO PURE VERSION + MOVEI 0,EVAL +TBLCAL: PUSHJ P,TBLSET ; SETUP TABLE ENTRY + JRST FINIS + +MFUNCTION APPLYTYPE,SUBR + + ENTRY + + PUSHJ P,CHKARG + MOVEI A,APLTYP ; POINT TO APPLY TABLE + MOVEI E,APTYPE ; PURE TABLE + MOVEI 0,APPLY + JRST TBLCAL + + +MFUNCTION PRINTTYPE,SUBR + + ENTRY + + PUSHJ P,CHKARG + MOVEI A,PRNTYP ; POINT TO APPLY TABLE + MOVEI E,PRTYPE ; PURE TABLE + MOVEI 0,PRINT + JRST TBLCAL + +; CHECK ARGS AND SETUP FOR TABLE HACKER + +CHKARG: JUMPGE AB,TFA + CAMGE AB,[-5,,] + JRST TMA + GETYP A,(AB) ; 1ST MUST BE TYPE NAME + CAIE A,TATOM + JRST WTYP1 + MOVE B,1(AB) ; GET ATOM + PUSHJ P,TYPLOO ; VERIFY THAT IT IS A TYPE + PUSH P,D ; SAVE TYPE NO. + MOVEI D,-1 ; INDICATE FUNNYNESS + CAML AB,[-3,,] ; SKIP IF 2 OR MORE + JRST TY1AR + HRRZ A,(A) ; GET SAT + ANDI A,SATMSK + PUSH P,A + GETYP A,2(AB) ; GET 2D TYPE + CAIE A,TATOM ; EITHER TYPE OR APPLICABLE + JRST TRYAPL ; TRY APPLICABLE + MOVE B,3(AB) ; VERIFY IT IS A TYPE + PUSHJ P,TYPLOO + HRRZ A,(A) ; GET SAT + ANDI A,SATMSK + POP P,C ; RESTORE SAVED SAT + CAIE A,(C) ; SKIP IF A WINNER + JRST TYPDIF ; REPORT ERROR +TY1AR: POP P,C ; GET SAVED TYPE + MOVEI B,0 ; TELL THAT WE ARE A TYPE + POPJ P, + +TRYAPL: PUSHJ P,APLQ ; IS THIS APPLICABLE + JRST NAPT + SUB P,[1,,1] + MOVE B,2(AB) ; RETURN SAME + MOVE D,3(AB) + POP P,C + POPJ P, + + +; HERE TO PUT ENTRY IN APPROPRIATE TABLE + +TBLSET: PUSH TP,B + PUSH TP,D ; SAVE VALUE + PUSH TP,$TFIX + PUSH TP,A + PUSH P,C ; SAVE TYPE BEING HACKED + PUSH P,E + SKIPE B,1(A) ; SKIP IF VECTOR DOESN'T EXIST YET + JRST TBL.OK + MOVE B,-2(TP) ; CHECK FOR RETURN IT HACK + SKIPN -3(TP) + CAIE B,-1 + JRST .+2 + JRST RETPM2 + HLRE A,TYPBOT+1 ; GET CURRENT TABLE LNTH + MOVNS A + ASH A,-1 + PUSH P,0 + PUSHJ P,IVECT ; GET VECTOR + POP P,0 + MOVE C,(TP) ; POINT TO RETURN POINT + MOVEM B,1(C) ; SAVE VECTOR + +TBL.OK: POP P,E + POP P,C ; RESTORE TYPE + SUB TP,[2,,2] + POP TP,D + POP TP,A + JUMPN A,TBLOK1 ; JUMP IF FUNCTION ETC. SUPPLIED + CAIN D,-1 + JRST TBLOK1 + CAILE D,NUMPRI ; SKIP IF ORIGINAL TYPE + MOVNI E,(D) ; CAUSE E TO ENDUP 0 + ADDI E,(D) ; POINT TO PURE SLOT +TBLOK1: ADDI C,(C) ; POINT TO VECTOR SLOT + ADDI C,(B) + CAIN D,-1 + JRST RETCUR + JUMPN A,OK.SET ; OK TO CLOBBER + ADDI B,(D) ; POINT TO TARGET TYPE'S SLOT + ADDI B,(D) ; POINT TO TARGET TYPE'S SLOT + SKIPN A,(B) ; SKIP IF WINNER + SKIPE 1(B) ; SKIP IF LOSER + SKIPA D,1(B) ; SETUP D + JRST CH.PTB ; CHECK PURE TABLE + +OK.SET: CAIN 0,(D) ; SKIP ON RESET + SETZB A,D + MOVEM A,(C) ; STORE + MOVEM D,1(C) +RETAR1: MOVE A,(AB) ; RET TYPE + MOVE B,1(AB) + JRST FINIS + +CH.PTB: MOVEI A,0 + MOVE D,[SETZ NAPT] + JUMPE E,OK.SET + MOVE D,(E) + JRST OK.SET + +RETPM2: SUB TP,[4,,4] + SUB P,[2,,2] + ASH C,1 + SOJA E,RETPM4 + +RETCUR: SKIPN A,(C) + SKIPE 1(C) + SKIPA B,1(C) + JRST RETPRM + + JUMPN A,CPOPJ +RETPM1: MOVEI A,0 + JUMPL B,RTFALS + CAMN B,1(E) + JRST .+3 + ADDI A,2 + AOJA E,.-3 + +RETPM3: ADD A,TYPVEC+1 + MOVE B,3(A) + MOVE A,2(A) + POPJ P, + +RETPRM: SUBI C,(B) ; UNDO BADNESS +RETPM4: CAIG C,NUMPRI*2 + SKIPG 1(E) + JRST RTFALS + + MOVEI A,-2(C) + JRST RETPM3 + +CALLTY: MOVE A,TYPVEC + MOVE B,TYPVEC+1 + POPJ P, + +MFUNCTION ALLTYPES,SUBR + + ENTRY 0 + + MOVE A,TYPVEC + MOVE B,TYPVEC+1 + JRST FINIS + +; + +;FUNCTION TO RETURN TYPE OF ELEMENTS IN A UVECTOR + +MFUNCTION UTYPE,SUBR + + ENTRY 1 + + GETYP A,(AB) ;GET U VECTOR + PUSHJ P,SAT + CAIE A,SNWORD + JRST WTYP1 + MOVE B,1(AB) ; GET UVECTOR + PUSHJ P,CUTYPE + JRST FINIS + +CUTYPE: HLRE A,B ;GET -LENGTH + HRRZS B + SUB B,A ;POINT TO TYPE WORD + GETYP A,(B) + JRST ITYPE ; GET NAME OF TYPE + +; FUNCTION TO CHANGE UNIFORM TYPE OF A VECTOR + +MFUNCTION CHUTYPE,SUBR + + ENTRY 2 + + GETYP A,2(AB) ;GET 2D TYPE + CAIE A,TATOM + JRST NOTATO + GETYP A,(AB) ; CALL WITH UVECTOR? + PUSHJ P,SAT + CAIE A,SNWORD + JRST WTYP1 + MOVE A,1(AB) ; GET UV POINTER + MOVE B,3(AB) ;GET ATOM + PUSHJ P,CCHUTY + MOVE A,(AB) ; RETURN UVECTOR + MOVE B,1(AB) + JRST FINIS + +CCHUTY: PUSH TP,$TUVEC + PUSH TP,A + PUSHJ P,TYPLOO ;LOOK IT UP + HRRZ B,(A) ;GET SAT + TRNE B,CHBIT + JRST CANTCH + ANDI B,SATMSK + SKIPGE MKTBS(B) + JRST CANTCH + HLRE C,(TP) ;-LENGTH + HRRZ E,(TP) + SUB E,C ;POINT TO TYPE + GETYP A,(E) ;GET TYPE + JUMPE A,WIN0 ;ALLOW TYPE "LOSE" TO CHANGE TO ANYTHING + PUSHJ P,SAT ;GET SAT + JUMPE A,TYPERR + CAIE A,(B) ;COMPARE + JRST TYPDIF +WIN0: ADDI D,.VECT. + HRLM D,(E) ;CLOBBER NEW ONE + POP TP,B + POP TP,A + POPJ P, + +CANTCH: PUSH TP,$TATOM + PUSH TP,EQUOTE CANT-CHTYPE-INTO + PUSH TP,2(AB) + PUSH TP,3(AB) + MOVEI A,2 + JRST CALER + +NOTATOM: + PUSH TP,$TATOM + PUSH TP,EQUOTE NON-ATOMIC-ARGUMENT + PUSH TP,(AB) + PUSH TP,1(AB) + MOVEI A,2 + JRST CALER + + + +; SUBROUTINE TO LEAVE MUDDLE CLOSING ALL CHANNELS ON THE WAY + +MFUNCTION QUIT,SUBR + + ENTRY 0 + + + PUSHJ P,CLOSAL ; DO THE CLOSES + PUSHJ P,%KILLM + JRST IFALSE ; JUST IN CASE + +CLOSAL: MOVEI B,CHNL0+2 ; POINT TO 1ST (NOT INCLUDING TTY I/O) + MOVE PVP,PVSTOR+1 + MOVE TVP,REALTV+1(PVP) + SUBI B,(TVP) + HRLS B + ADD B,TVP + PUSH TP,$TVEC + PUSH TP,B + PUSH P,[N.CHNS-1] ; MAX NO. OF CHANS + +CLOSA1: MOVE B,(TP) + ADD B,[2,,2] + MOVEM B,(TP) + HLLZS -2(B) + SKIPN C,-1(B) ; THIS ONE OPEN? + JRST CLOSA4 ; NO + CAME C,TTICHN+1 + CAMN C,TTOCHN+1 + JRST CLOSA4 + PUSH TP,-2(B) ; PUSH IT + PUSH TP,-1(B) + MCALL 1,FCLOSE ; CLOSE IT +CLOSA4: SOSLE (P) ; COUNT DOWN + JRST CLOSA1 + + + SUB TP,[2,,2] + SUB P,[1,,1] + +CLOSA3: SKIPN B,CHNL0+1 + POPJ P, + PUSH TP,(B) + HLLZS (TP) + PUSH TP,1(B) + HRRZ B,(B) + MOVEM B,CHNL0+1 + MCALL 1,FCLOSE + JRST CLOSA3 + + +IMPURE + +WHOAMI: 0 ; SYAYS WHETHER I AM REALLY A MUDDLE OR SOME HACK + + +;GARBAGE COLLECTORS PDLS + + +GCPDL: -GCPLNT,,GCPDL + + BLOCK GCPLNT + + +PURE + +MUDSTR: ASCII /MUDDLE / +STRNG: -1 + -1 + -1 + ASCIZ / IN OPERATION./ + +;MARKED PDLS FOR GC PROCESS + +VECTGO +; DUMMY FRAME FOR INITIALIZER CALLS + + TENTRY,,LISTEN + 0 + .-3 + 0 + 0 + -ITPLNT,,TPBAS-1 + 0 + +TPBAS: BLOCK ITPLNT+PDLBUF + GENERAL + ITPLNT+2+PDLBUF+7,,0 + + +VECRET + + +$TMATO: TATOM,,-1 + +END + \ No newline at end of file diff --git a//mappur.163 b//mappur.163 new file mode 100644 index 0000000..d4e21bc --- /dev/null +++ b//mappur.163 @@ -0,0 +1,1987 @@ + +TITLE MAPURE-PAGE LOADER + +RELOCATABLE + +MAPCH==0 ; channel for MAPing +XJRST==JRST 5, + +.GLOBAL PURVEC,PURTOP,PURBOT,P.TOP,GCSTOP,FRETOP,MUDSTR,STRTO6,PLOAD,AGC,GCDOWN +.GLOBAL SQUTOA,IGVAL,IBLOCK,PURCLN,MOVPUR,GETPAG,GCFLG,NOSHUF,DIR,NDIRS,SQUPNT +.GLOBAL PLODR,SQUKIL,GETBUF,KILBUF,INPLOD,SQKIL,PVSTOR,TVSTOR,DSTOREM,SLEEPR +.GLOBAL OPSYS,SJFNS,MULTSG,PURBTB,SFIX,NSEGS +.GLOBAL C%11,C%22,C%33,C%44,C%55,C%66,C%0,C%1,C%2,C%3,C%M1,C%M2,C%M10 +.GLOBAL C%M20,C%M30,C%M40,C%M60 +.GLOBAL MAPJFN,DIRCHN + +.INSRT MUDDLE > +SPCFXU==1 +SYSQ + +IFE ITS,[ +IF1, .INSRT STENEX > +] + +F==PVP +G==TVP +H==SP +RDTP==1000,,200000 +FME==1000,,-1 + + +IFN ITS,[ +PGMSK==1777 +PGSHFT==10. +] + +IFE ITS,[ +FLUSHP==0 +PGMSK==777 +PGSHFT==9. +] + +LNTBYT==340700 +ELN==4 ; LENGTH OF SLOT +FB.NAM==0 ; NAME SLOT IN TABLE +FB.PTR==1 ; Pointer to core pages +FB.AGE==2 ; age,,chain +FB.PGS==3 ; PTR AND LENGTH OF PAGE IN FILE +FB.AMK==37777777 ; extended address mask +FB.CNT==<-1># ; page count mask +EOC==400000 ; END OF PURVEC CHAIN + +IFE ITS,[ +.FHSLF==400000 ; THIS FORK +%GJSHT==000001 ; SHORT FORM GTJFN +%GJOLD==100000 + ;PMAP BITS +PM%CNT==400000 ; PMAP WITH REPEAT COUNT +PM%RD==100000 ; PMAP WITH READ ACCESS +PM%EX==20000 ; PMAP WITH EXECUTE ACCESS (NO-OP ON 20X) +PM%CPY==400 ; PMAP WITH COPY-ON-WRITE ACCESS +PM%WR==40000 ; PMAP WITH WRITE ACCESS + + ;OPENF BITS +OF%RD==200000 ; OPEN IN READ MODE +OF%WR==100000 ; OPEN IN WRITE MODE +OF%EX==040000 ; OPEN IN EXECUTE MODE (TENEX CARES) +OF%THW==02000 ; OPEN IN THAWED MODE +OF%DUD==00020 ; DON'T UPDATE THAWED PAGES +] +; THIS ROUTINE TAKES A SLOT OFFSET IN REGISTER A AND MAPS IN THE ASSOCIATED +; FILE. IT CLOBBERS ALL ACs AND SKIP RETURNS IF IT WINS. + +OFF==-5 ; OFFSET INTO PURVEC OF SLOT +NAM==-4 ; SIXBIT NAME OF THING BEING LOADED +LASTC==-3 ; LAST CHARACTER OF THE NAME +DIR==-2 ; SAVED POINTER TO DIRECTORY +SPAG==-1 ; FIRST PAGE IN FILE +PGNO==0 ; FIRST PAGE IN CORE +VER==-6 ; VERSION NUMBER OF MUDDLE TO USE IN OPENING FILES +FLEN==-7 ; LENGTH OF THE FILE +TEMP==-10 ; GENERAL TEMPORARY SLOT +WRT==-11 ; INDICATION IF OPEN IS FOR WRITING OR READING +CADDR==-12 ; ADDRESS OF CORE IMAGE LOCATION OF FILE +NSLOTS==13 + +; IT FIRST LOOKS TO SEE IF IT HAS THE PAGE NUMBER OF THE FILE + +PLOAD: ADD P,[NSLOTS,,NSLOTS] + SKIPL P + JRST PDLOV + MOVEM A,OFF(P) + PUSH TP,C%0 ; [0] + PUSH TP,C%0 ; [0] +IFE ITS,[ + SKIPN MAPJFN + PUSHJ P,OPSAV +] + +PLOADX: PUSHJ P,SQKIL + MOVE A,OFF(P) + ADD A,PURVEC+1 ; GET TO SLOT + SKIPE B,FB.PGS(A) ; SKIP IF PAGE NUMBER + JRST GETIT + MOVE B,FB.NAM(A) + MOVEM B,NAM(P) + MOVE 0,B + MOVEI A,6 ; FIND LAST CHARACTER + TRNE 0,77 ; SKIP IF NOT DONE + JRST .+3 + LSH 0,-6 ; BACK A CHAR + SOJG A,.-3 ; NOW CHAR IS BACKED OUT + ANDI 0,77 ; LASTCHR + MOVEM 0,LASTC(P) + +; NOT TO TRY TO FIND FILE IN MAIN DATA BASE. +; THE GC'S WINDOW IS USED IN THIS CASE. + +IFN ITS,[ + .CALL MNBLK ; OPEN CHANNEL TO MAIN FILE + JRST NTHERE + PUSHJ P,TRAGN ; TRY OPENING UP CHANNEL AGAIN IF POSSIBLE +] +IFE ITS,[ + SKIPN E,MAPJFN + JRST NTHERE ;who cares if no SAV.FILE? + MOVEM E,DIRCHN +] + MOVE D,NAM(P) + MOVE 0,LASTC(P) + PUSHJ P,GETDIR + MOVEM E,DIR(P) + PUSHJ P,GENVN ; GET VERSION # AS FIX + MOVE E,DIR(P) + MOVE D,NAM(P) + MOVE A,B + PUSHJ P,DIRSRC ; SEARCH DIRECTORY + JRST NTHERE ; GO TRY FIXING UP ITS NOT THERE + ANDI A,-1 ; WIN IN MULT SEG CASE + MOVE B,OFF(P) ; GET SLOT NUMBER + ADD B,PURVEC+1 ; POINT TO SLOT + HRRZ C,1(A) ; GET BLOCK NUMBER + HRRM C,FB.PGS(B) ; SMASH INTO SLOT + LDB C,[LNTBYT,,1(A)] ; SMASH IN LENGTH + HRLM C,FB.PGS(B) ; SMASH IN LENGTH + JRST PLOADX + +; NOW TRY TO FIND FILE IN WORKING DIRECTORY + +NTHERE: PUSHJ P,KILBUF + MOVE A,OFF(P) ; GET POINTER TO PURVEC SLOT + ADD A,PURVEC+1 + PUSHJ P,GENVN ; GET VERSION NUMBER + HRRZM B,VER(P) + PUSHJ P,OPMFIL ; OPEN FILE + JRST FIXITU + +; NUMBER OF PAGES ARE IN A +; STARTING PAGE NUMBER IN SPAG(P) + +PLOD1: PUSHJ P,ALOPAG ; get the necessary pages + JRST MAPLS2 + MOVE E,SPAG(P) ; E starting page in file + MOVEM B,PGNO(P) +IFN ITS,[ + MOVN A,FLEN(P) ; get neg count + MOVSI A,(A) ; build aobjn pointer + HRR A,PGNO(P) ; get page to start + MOVE B,A ; save for later + HRRI 0,(E) ; page pointer for file + DOTCAL CORBLK,[[1000,,200000],[1000,,-1],A,[1000,,MAPCH],0] + .LOSE %LSSYS + .CLOSE MAPCH, ; no need to have file open anymore +] +IFE ITS,[ + MOVEI A,(E) ; First page on rh of A + HRL A,DIRCHN ; JFN to lh of A + HRLI B,.FHSLF ; specify this fork + MOVSI C,PM%RD+PM%EX ; bits for read/execute + MOVE D,FLEN(P) ; # of pages to D + HRROI E,(B) ; build page aobjn for later + TLC E,-1(D) ; sexy way of doing lh + + SKIPN OPSYS + JRST BLMAP ; if tops-20 can block PMAP + PMAP + ADDI A,1 + ADDI B,1 + SOJG D,.-3 ; map 'em all + MOVE B,E + JRST PLOAD1 + +BLMAP: HRRI C,(D) + TLO C,PM%CNT ; say it is counted + PMAP ; one PMAP does the trick + MOVE B,E +] +; now try to smash slot in PURVEC + +PLOAD1: MOVE A,PURVEC+1 ; get pointer to it + ASH B,PGSHFT ; convert to aobjn pointer to words + MOVE C,OFF(P) ; get slot offset + ADDI C,(A) ; point to slot + MOVEM B,FB.PTR(C) ; clobber it in + TLZ B,(FB.CNT) ; isolate address of page + HRRZ D,PURVEC ; get offset into vector for start of chain + TRNE D,EOC ; skip if not end marker + JRST SCHAIN + HRLI D,400000+A ; set up indexed pointer + ADDI D,1 +IFN ITS, HRRZ 0,@D ; get its address +IFE ITS,[ + MOVE 0,@D + TLZ 0,(FB.CNT) +] + JUMPE 0,SCHAIN ; no chain exists, start one + CAMLE 0,B ; skip if new one should be first + AOJA D,INLOOP ; jump into the loop + + SUBI D,1 ; undo ADDI +FCLOB: MOVE E,OFF(P) ; get offset for this guy + HRRM D,FB.AGE(C) ; link up + HRRM E,PURVEC ; store him away + JRST PLOADD + +SCHAIN: MOVEI D,EOC ; get end of chain indicator + JRST FCLOB ; and clobber it in + +INLOOP: MOVE E,D ; save in case of later link up + HRR D,@D ; point to next table entry + TRNE D,EOC ; 400000 is the end of chain bit + JRST SLFOUN ; found a slot, leave loop + ADDI D,1 ; point to address of progs +IFN ITS, HRRZ 0,@D ; get address of block +IFE ITS,[ + MOVE 0,@D + TLZ 0,(FB.CNT) +] + CAMLE 0,B ; skip if still haven't fit it in + AOJA D,INLOOP ; back to loop start and point to chain link + SUBI D,1 ; point back to start of slot + +SLFOUN: MOVE 0,OFF(P) ; get offset into vector of this guy + HRRM 0,@E ; make previous point to us + HRRM D,FB.AGE(C) ; link it in + + +PLOADD: AOS -NSLOTS(P) ; skip return + MOVE B,FB.PTR(C) + +MAPLOS: SUB P,[NSLOTS,,NSLOTS] ; flush stack crap + SUB TP,C%22 + POPJ P, + + +MAPLS0: ERRUUO EQUOTE NO-SAV-FILE + JRST MAPLOS + +MAPLS1: ERRUUO EQUOTE NO-FIXUP-FILE + JRST MAPLOS + +MAPLS2: ERRUUO EQUOTE NO-ROOM-AVAILABLE + JRST MAPLOS + +FIXITU: + +;OPEN FIXUP FILE ON MUDSAV + +IFN ITS,[ + .CALL FIXBLK ; OPEN UP FIXUP FILE + PUSHJ P,TRAGN ; SEE IF TOTALLY LOSING +] +IFE ITS,[ + MOVSI A,%GJSHT ; GTJFN BITS + HRROI B,FXSTR + SKIPE OPSYS + HRROI B,TFXSTR + GTJFN + FATAL FIXUP FILE NOT FOUND + MOVEM A,DIRCHN + MOVE B,[440000,,OF%RD+OF%EX] + OPENF + FATAL FIXUP FILE CANT BE OPENED +] + + MOVE 0,LASTC(P) ; GET DIRECTORY + PUSHJ P,GETDIR + MOVE D,NAM(P) + PUSHJ P,DIRSR1 ; SEARCH DIRECTORY FOR FIXUP + JRST NOFXUP ; NO FIXUP IN MAIN DIRECTORY + ANDI A,-1 ; WIN IN MULTI SEGS + HRRZ A,1(A) ; GET BLOCK NUMBER OF START + ASH A,8. ; CONVERT TO WORDS +IFN ITS,[ + .ACCES MAPCH,A ; ACCESS FILE +] + +IFE ITS,[ + MOVEI B,(A) + MOVE A,DIRCHN + SFPTR + JFCL +] + PUSHJ P,KILBUF +FIXT1: PUSHJ P,RFXUP ; READ IN THE FIXUP FILE + +IFN ITS,[ + .CALL MNBLK ; REOPEN SAV FILE + PUSHJ P,TRAGN +] + +IFE ITS,[ + MOVE A,MAPJFN ; SET UP DIRCHAN AGAIN + MOVEM A,DIRCHN +] + +; NOW TRY TO LOCATE SAV FILE + + MOVE 0,LASTC(P) ; GET LASTCHR + PUSHJ P,GETDIR ; GET DIRECTORY + HRRZ A,VER(P) ; GET VERSION # + MOVE D,NAM(P) ; GET NAME OF FILE + PUSHJ P,DIRSRC ; SEARCH DIRECTORY + JRST MAPLS1 ; NO SAV FILE THERE + ANDI A,-1 + HRRZ E,1(A) ; GET STARTING BLOCK # + LDB A,[LNTBYT,,1(A)] ; GET LENGTH INTO A + MOVEM A,FLEN(P) ; SAVE LENGTH + MOVEM E,SPAG(P) ; SAVE STARTING BLOCK NUMBER + PUSHJ P,KILBUF + PUSHJ P,RSAV ; READ IN CODE +; now to do fixups + +FXUPGO: MOVE A,(TP) ; pointer to them + SETOM INPLOD ; ABSOLUTE CLUDGE TO PREVENT BUFFER FROM + ; SCREWING US +IFE ITS,[ + SKIPN MULTSG + JRST FIXMLT +] + HRRZ D,B ; this codes gets us running in the correct + ; segment + ASH D,PGSHFT + HRRI D,FIXMLT + MOVEI C,0 + XJRST C ; good bye cruel segment (will work if we fell + ; into segment 0) +FIXMLT: ASH B,PGSHFT ; aobjn to program + +FIX1: SKIPL E,(A) ; read one hopefully squoze + FATAL ATTEMPT TO TYPE FIX PURE + TLZ E,740000 + +NOPV1: PUSHJ P,SQUTOA ; look it up + FATAL BAD FIXUPS + +; N.B. THE VALUE IN THE FIXUPS FOR AN ADDRESS CAN BE NEGATIVE. IF THIS HAPPENS +; IT MEANS THAT THE LEFT HALF CONTAINS THE VALUE INSTEAD OF THE RIGHT HALF +NOPV2: AOBJP A,FIX2 + HLRZ D,(A) ; get old value + HRRZS E + SUBM E,D ; D is diff between old and new + HRLM E,(A) ; fixup the fixups +NOPV3: MOVEI 0,0 ; flag for which half +FIX4: JUMPE 0,FIXRH ; jump if getting rh + MOVEI 0,0 ; next time will get rh + AOBJP A,FIX2 ; done? + HLRE C,(A) ; get lh + JUMPE C,FIX3 ; 0 terminates +FIX5: SKIPGE C ; If C is negative then left half garbage + JRST FIX6 + ADDI C,(B) ; access the code + +NOPV4: ADDM D,-1(C) ; and fix it up + JRST FIX4 + +; FOR LEFT HALF CASE + +FIX6: MOVNS C ; GET TO ADRESS + ADDI C,(B) ; ACCESS TO CODE + HLRZ E,-1(C) ; GET OUT WORD + ADDM D,E ; FIX IT UP + HRLM E,-1(C) + JRST FIX4 + +FIXRH: MOVEI 0,1 ; change flag + HRRE C,(A) ; get it and + JUMPN C,FIX5 + +FIX3: AOBJN A,FIX1 ; do next one + +IFN SPCFXU,[ + MOVE C,B + PUSHJ P,SFIX +] + PUSHJ P,SQUKIL ; KILL SQUOZE TABLE + SETZM INPLOD +FIX2: + HRRZS VER(P) ; INDICATE SAV FILE + MOVEM B,CADDR(P) + PUSHJ P,GENVN + HRRM B,VER(P) + PUSHJ P,OPWFIL + FATAL MAP FIXUP LOSSAGE +IFN ITS,[ + MOVE B,CADDR(P) + .IOT MAPCH,B ; write out the goodie + .CLOSE MAPCH, + PUSHJ P,OPMFIL + FATAL WHERE DID THE FILE GO? + MOVE E,CADDR(P) + ASH E,-PGSHFT ; to page AOBJN + DOTCAL CORBLK,[[1000,,200000],[1000,,-1],E,[1000,,MAPCH],0] + .LOSE %LSSYS + .CLOSE MAPCH, +] + + +IFE ITS,[ + MOVE A,DIRCHN ; GET JFN + MOVE B,CADDR(P) ; ready to write it out + HRLI B,444400 + HLRE C,CADDR(P) + SOUT ; zap it out + TLO A,400000 ; dont recycle the JFN + CLOSF + JFCL + ANDI A,-1 ; kill sign bit + MOVE B,[440000,,240000] + OPENF + FATAL MAP FIXUP LOSSAGE + MOVE B,CADDR(P) + ASH B,-PGSHFT ; aobjn to pages + HLRE D,B ; -count + HRLI B,.FHSLF + MOVSI A,(A) + MOVSI C,PM%RD+PM%EX + PMAP + ADDI A,1 + ADDI B,1 + AOJN D,.-3 +] + + SKIPGE MUDSTR+2 + JRST EFIX2 ; exp vers, dont write out +IFE ITS,[ + HRRZ A,SJFNS ; get last jfn from savxxx file + JUMPE A,.+4 ; oop + CAME A,MAPJFN + CLOSF ; close it + JFCL + HLLZS SJFNS ; zero the slot +] + MOVEI 0,1 ; INDICATE FIXUP + HRLM 0,VER(P) + PUSHJ P,OPWFIL + FATAL CANT WRITE FIXUPS + +IFN ITS,[ + MOVE E,(TP) + HLRE A,E ; get length + MOVNS A + ADDI A,2 ; account for these 2 words + MOVE 0,[-2,,A] ; write version and length + .IOT MAPCH,0 + .IOT MAPCH,E ; out go the fixups + SETZB 0,A + MOVEI B,MAPCH + .CLOSE MAPCH, +] + +IFE ITS,[ + MOVE A,DIRCHN + HLRE B,(TP) ; length of fixup vector + MOVNS B + ADDI B,2 ; for length and version words + BOUT + PUSHJ P,GENVN + BOUT + MOVSI B,444400 ; byte pointer to fixups + HRR B,(TP) + HLRE C,(TP) + SOUT + CLOSF + JFCL +] + +EFIX2: MOVE B,CADDR(P) + ASH B,-PGSHFT + JRST PLOAD1 + +; Here to try to get a free page block for new thing +; A/ # of pages to get + +ALOPAG: MOVE C,GCSTOP ; FOOL GETPAG + ADDI C,3777 + ASH C,-PGSHFT + MOVE B,PURBOT +IFE ITS,[ + SKIPN MULTSG ; skip if multi-segments + JRST ALOPA1 +; Compute the "highest" PURBOT (i.e. find the least busy segment) + + PUSH P,E + PUSH P,A + MOVN A,NSEGS ; aobjn pntr to table + HRLZS A + MOVEI B,0 +ALOPA3: CAML B,PURBTB(A) ; if this one is larger + JRST ALOPA2 + MOVE B,PURBTB(A) ; use it + MOVEI E,FSEG(A) ; and the segment # +ALOPA2: AOBJN A,ALOPA3 + POP P,A +] + +ALOPA1: ASH B,-PGSHFT + SUBM B,C ; SEE IF ROOM + CAIL C,(A) + JRST ALOPGW + PUSHJ P,GETPAX ; try to get enough pages +IFE ITS, JRST EPOPJ +IFN ITS, POPJ P, + +ALOPGW: +IFN ITS, AOS (P) ; won skip return +IFE ITS,[ + SKIPE MULTSG + AOS -1(P) ; ret addr + SKIPN MULTSG + AOS (P) +] + MOVE 0,PURBOT +IFE ITS,[ + SKIPE MULTSG + MOVE 0,PURBTB-FSEG(E) +] + ASH 0,-PGSHFT + SUBI 0,(A) + MOVE B,0 +IFE ITS,[ + SKIPN MULTSG + JRST ALOPW1 + ASH 0,PGSHFT + HRRZM 0,PURBTB-FSEG(E) + ASH E,PGSHFT ; INTO POSITION + IORI B,(E) ; include segment in address + POP P,E + JRST ALOPW2 +] +ALOPW1: ASH 0,PGSHFT +ALOPW2: CAMGE 0,PURBOT + MOVEM 0,PURBOT + CAML 0,P.TOP + POPJ P, +IFE ITS,[ + SUBI 0,1777 + ANDCMI 0,1777 +] + MOVEM 0,P.TOP + POPJ P, + +EPOPJ: SKIPE MULTSG + POP P,E + POPJ P, +IFE ITS,[ +GETPAX: TDZA B,B ; here if other segs ok +GETPAG: MOVEI B,1 ; here for only main segment + JRST @[.+1] ; run in sect 0 + MOVNI E,1 +] +IFN ITS,[ +GETPAX: +GETPAG: +] + MOVE C,P.TOP ; top of GC space + ASH C,-PGSHFT ; to page number +IFE ITS,[ + SKIPN MULTSG + JRST GETPA9 + JUMPN B,GETPA9 ; if really wan all segments, + ; must force all to be free + PUSH P,A + MOVN A,NSEGS ; aobjn pntr to table + HRLZS A + MOVE B,P.TOP +GETPA8: CAMLE B,PURBTB(A) ; if this one is larger (or the same) + JRST GETPA7 + MOVE B,PURBTB(A) ; use it + MOVEI E,FSEG(A) ; and the segment # +GETPA7: AOBJN A,GETPA8 + POP P,A + JRST .+2 +] +GETPA9: MOVE B,PURBOT + ASH B,-PGSHFT ; also to pages + SUBM B,C ; pages available ==> C + CAMGE C,A ; skip if have enough already + JRST GETPG1 ; no, try to shuffle around + SUBI B,(A) ; B/ first new page +CPOPJ1: AOS (P) +IFN ITS, POPJ P, +IFE ITS,[ +SPOPJ: SKIPN MULTSG + POPJ P, ; return with new free page in B + ; (and seg# in E?) + POP P,21 + SETZM 20 + XJRST 20 +] +; Here if shuffle must occur or gc must be done to make room + +GETPG1: MOVEI 0,0 + SKIPE NOSHUF ; if can't shuffle, then ask gc + JRST ASKAGC + MOVE 0,PURTOP ; get top of mapped pure area + SUB 0,P.TOP + ASH 0,-PGSHFT ; to pages + CAMGE 0,A ; skip if winnage possible + JRST ASKAGC ; please AGC give me some room!! + SUBM A,C ; C/ amount we must flush to make room + +IFE ITS,[ + SKIPE MULTSG ; if multi and getting in all segs + JUMPL E,LPGL1 ; check out each and every segment + + PUSHJ P,GL1 + + SKIPE MULTSG + PUSHJ P,PURTBU ; update PURBOT in multi case + + JRST GETPAX + +LPGL1: PUSH P,A + PUSH P,[FSEG-1] + +LPGL2: AOS E,(P) ; count segments + MOVE B,NSEGS + ADDI B,FSEG + CAML E,B + JRST LPGL3 + PUSH P,C + MOVE C,PURBOT ; fudge so look for appropriate amt + SUB C,PURBTB-FSEG(E) + ASH C,-PGSHFT ; to pages + ADD C,(P) + SKIPLE C ; none to flush + PUSHJ P,GL1 + HRRZ E,-1(P) ; fet section again + HRRZ B,PURBOT + HRRZ C,PURBTB-FSEG(E) ; lets share with 0 again + SUB C,B + HRL B,E ; get segment + MOVEI A,(B) + ASH B,-PGSHFT + ASH A,-PGSHFT + HRLI A,.FHSLF + HRLI B,.FHSLF + ASH C,-PGSHFT + HRLI C,PM%CNT+PM%RD+PM%WR+PM%EX + PMAP +LPGL4: POP P,C + JRST LPGL2 + +LPGL3: SUB P,C%11 + POP P,A + + SKIPE MULTSG + PUSHJ P,PURTBU ; update PURBOT in multi case + + JRST GETPAG +] +; Here to find pages for flush using LRU algorithm (in multi seg mode, only +; care about the segment in E) + +GL1: MOVE B,PURVEC+1 ; get pointer to pure sr vector + MOVEI 0,-1 ; get very large age + +GL2: SKIPL FB.PTR(B) ; skip if not already flushed + JRST GL3 +IFE ITS,[ + SKIPN MULTSG + JRST GLX + LDB D,[220500,,FB.PTR(B)] ; get segment # + CAIE D,(E) + JRST GL3 ; wrong swegment, ignore +] +GLX: HLRZ D,FB.AGE(B) ; get this ones age + CAMLE D,0 ; skip if this is a candidate + JRST GL3 + MOVE F,B ; point to table entry with E + MOVEI 0,(D) ; and use as current best +GL3: ADD B,[ELN,,ELN] ; look at next + JUMPL B,GL2 + + HLRE B,FB.PTR(F) ; get length of flushee + ASH B,-PGSHFT ; to negative # of pages + ADD C,B ; update amount needed +IFN ITS,SETZM FB.PTR(F) ; indicate it will be gone +IFE ITS,MOVNS FB.PTR(F) ; save page info for flushing pages + JUMPG C,GL1 ; jump if more to get + +; Now compact pure space + + PUSH P,A ; need all acs + HRRZ D,PURVEC ; point to first in core addr order + HRRZ C,PURTOP +IFE ITS,[ + SKIPE MULTSG + HRLI C,(E) ; adjust for segment +] + ASH C,-PGSHFT ; to page number + SETZB F,A + +CL1: ADD D,PURVEC+1 ; to real pointer + SKIPGE FB.PTR(D) ; skip if this one is a flushee + JRST CL2 ; this one stays + +IFE ITS,[ + PUSH P,C + PUSH P,D + HRRZ C,FB.PGS(D) ; is this from SAV FILE? + JUMPN C,CLFOUT ; yes. don't bother flushing pages + MOVN C,FB.PTR(D) ; get aobjn pointer to code in C + SETZM FB.PTR(D) ; and flush this because it works (sorry) + ASH C,-PGSHFT ; pages speak louder than words + HLRE D,C ; # of pages saved here for unmap + HRLI C,.FHSLF ; C now contains myfork,,lowpage + MOVE A,C ; put that in A for RMAP + RMAP ; A now contains JFN in left half + MOVE B,C ; ac roulette: get fork,,page into B for PMAP + HLRZ C,A ; hold JFN in C for future CLOSF + MOVNI A,1 ; say this page to be unmapped +CLFLP: PMAP ; do the unmapping + ADDI B,1 ; next page + AOJL D,CLFLP ; continue for all pages + MOVE A,C ; restore JFN + CLOSF ; and close it, throwing away the JFN + JFCL ; should work in 95/100 cases +CLFOU1: POP P,D ; fatal error if can't close + POP P,C +] + HRRZ D,FB.AGE(D) ; point to next one in chain + JUMPN F,CL3 ; jump if not first one + HRRM D,PURVEC ; and use its next as first + JRST CL4 + +IFE ITS,[ +CLFOUT: SETZM FB.PTR(D) ; zero the code pointer + JRST CLFOU1 +] + +CL3: HRRM D,FB.AGE(F) ; link up + JRST CL4 + +; Found a stayer, move it if necessary + +CL2: +IFE ITS,[ + SKIPN MULTSG + JRST CL9 + LDB F,[220500,,FB.PTR(D)] ; check segment + CAIE E,(F) + JRST CL6X ; no other segs move at all +] +CL9: MOVEI F,(D) ; another pointer to slot + HLRE B,FB.PTR(D) ; - length of block +IFE ITS,[ + TRZ B,<-1>#<(FB.CNT)> + MOVE D,FB.PTR(D) ; pointer to block + TLZ D,(FB.CNT) ; kill count bits +] +IFN ITS, HRRZ D,FB.PTR(D) + SUB D,B ; point to top of block + ASH D,-PGSHFT ; to page number + CAMN D,C ; if not moving, jump + JRST CL6 + + ASH B,-PGSHFT ; to pages +IFN ITS,[ +CL5: SUBI C,1 ; move to pointer and from pointer + SUBI D,1 + DOTCAL CORBLK,[[1000,,200000],[1000,,-1],C,[1000,,-1],D] + .LOSE %LSSYS + AOJL B,CL5 ; count down +] +IFE ITS,[ + PUSH P,B ; save # of pages + MOVEI A,-1(D) ; copy from pointer + HRLI A,.FHSLF ; get this fork code + RMAP ; get a JFN (hopefully) + EXCH D,(P) ; D # of pages (save from) + ADDM D,(P) ; update from + MOVEI B,-1(C) ; to pointer in B + HRLI B,.FHSLF + MOVSI C,PM%RD+PM%EX ; read/execute modes + + SKIPN OPSYS + JRST CCL1 + PMAP ; move a page + SUBI A,1 + SUBI B,1 + AOJL D,.-3 ; move them all + AOJA B,CCL2 + +CCL1: TLO C,PM%CNT + MOVNS D + SUBI B,-1(D) + SUBI A,-1(D) + HRRI C,(D) + PMAP + +CCL2: MOVEI C,(B) + POP P,D +] +; Update the table address for this loser + + SUBM C,D ; compute offset (in pages) + ASH D,PGSHFT ; to words + ADDM D,FB.PTR(F) ; update it +CL7: HRRZ D,FB.AGE(F) ; chain on +CL4: TRNN D,EOC ; skip if end of chain + JRST CL1 + + ASH C,PGSHFT ; to words +IFN ITS, MOVEM C,PURBOT ; reset pur bottom +IFE ITS,[ + SKIPN MULTSG + JRST CLXX + + HRRZM C,PURBTB-FSEG(E) + CAIA +CLXX: MOVEM C,PURBOT ; reset pur bottom +] + POP P,A + POPJ P, + +IFE ITS,[ +CL6X: MOVEI F,(D) ; chain on + JRST CL7 +] +CL6: +IFN ITS, HRRZ C,FB.PTR(F) ; get new top of world +IFE ITS,[ + MOVE C,FB.PTR(F) + TLZ C,(FB.CNT) +] + ASH C,-PGSHFT ; to page # + JRST CL7 + +IFE ITS,[ +PURTBU: PUSH P,A + PUSH P,B + + MOVN B,NSEGS + HRLZS B + MOVE A,PURTOP + +PURTB2: CAMGE A,PURBTB(B) + JRST PURTB1 + MOVE A,PURBTB(B) + MOVEM A,PURBOT +PURTB1: AOBJN B,PURTB2 + + POP P,B + POP P,A + POPJ P, +] + + ; SUBR to create an entry in the vector for one of these guys + +MFUNCTION PCODE,SUBR + + ENTRY 2 + + GETYP 0,(AB) ; check 1st arg is string + CAIE 0,TCHSTR + JRST WTYP1 + GETYP 0,2(AB) ; second must be fix + CAIE 0,TFIX + JRST WTYP2 + + MOVE A,(AB) ; convert name of program to sixbit + MOVE B,1(AB) + PUSHJ P,STRTO6 +PCODE4: MOVE C,(P) ; get name in sixbit + +; Now look for either this one or an empty slot + + MOVEI E,0 + MOVE B,PURVEC+1 + +PCODE2: CAMN C,FB.NAM(B) ; skip if this is not it + JRST PCODE1 ; found it, drop out of loop + JUMPN E,.+3 ; dont record another empty if have one + SKIPN FB.NAM(B) ; skip if slot filled + MOVE E,B ; remember pointer + ADD B,[ELN,,ELN] + JUMPL B,PCODE2 ; jump if more to look at + + JUMPE E,PCODE3 ; if E=0, error no room + MOVEM C,FB.NAM(E) ; else stash away name and zero rest + SETZM FB.PTR(E) + SETZM FB.AGE(E) + CAIA +PCODE1: MOVE E,B ; build ,, + MOVEI 0,0 ; flag whether new slot + SKIPE FB.PTR(E) ; skip if mapped already + MOVEI 0,1 + MOVE B,3(AB) + HLRE D,E + HLRE E,PURVEC+1 + SUB D,E + HRLI B,(D) + MOVSI A,TPCODE + SKIPN NOSHUF ; skip if not shuffling + JRST FINIS + JUMPN 0,FINIS ; jump if winner + PUSH TP,A + PUSH TP,B + HLRZ A,B + PUSHJ P,PLOAD + JRST PCOERR + POP TP,B + POP TP,A + JRST FINIS + +PCOERR: ERRUUO EQUOTE PURE-LOAD-FAILURE + +PCODE3: HLRE A,PURVEC+1 ; get current length + MOVNS A + ADDI A,10*ELN ; add 10(8) more entry slots + PUSHJ P,IBLOCK + EXCH B,PURVEC+1 ; store new one and get old + HLRE A,B ; -old length to A + MOVSI B,(B) ; start making BLT pointer + HRR B,PURVEC+1 + SUBM B,A ; final dest to A +IFE ITS, HRLI A,-1 ; force local index + BLT B,-1(A) + JRST PCODE4 + +; Here if must try to GC for some more core + +ASKAGC: SKIPE GCFLG ; if already in GC, lose +IFN ITS, POPJ P, +IFE ITS, JRST SPOPJ + MOVEM A,0 ; amount required to 0 + ASH 0,PGSHFT ; TO WORDS + MOVEM 0,GCDOWN ; pass as funny arg to AGC + EXCH A,C ; save A from gc's destruction +IFN ITS,.IOPUSH MAPCH, ; gc uses same channel + PUSH P,C + SETOM PLODR + MOVE C,[8,,9.] ; SET UP INDICATORS FOR GC + PUSHJ P,AGC + SETZM PLODR + POP P,C +IFN ITS,.IOPOP MAPCH, + EXCH C,A +IFE ITS,[ + JUMPL C,.+3 + JUMPL E,GETPAG + JRST GETPAX +] +IFN ITS, JUMPGE C,GETPAG + ERRUUO EQUOTE NO-MORE-PAGES + +; Here to clean up pure space by flushing all shared stuff + +PURCLN: SKIPE NOSHUF + POPJ P, + MOVEI B,EOC + HRRM B,PURVEC ; flush chain pointer + MOVE D,PURVEC+1 ; get pointer to table +CLN1: +IFE ITS,[ + SKIPN A,FB.PTR(D) + JRST NOCL + ASH A,-PGSHFT + HRLI A,.FHSLF + RMAP + HLRZS A + CLOSF + JFCL +] +NOCL: SETZM FB.PTR(D) ; zero pointer entry + SETZM FB.AGE(D) ; zero link and age slots + SETZM FB.PGS(D) + ADD D,[ELN,,ELN] ; go to next slot + JUMPL D,CLN1 ; do til exhausted + MOVE B,PURBOT ; now return pages + SUB B,PURTOP ; compute page AOBJN pointer +IFE ITS, SETZM MAPJFN ; make sure zero mapjfn + JUMPE B,CPOPJ ; no pure pages? + MOVSI B,(B) + HRR B,PURBOT + ASH B,-PGSHFT +IFN ITS,[ + DOTCAL CORBLK,[[1000,,0],[1000,,-1],B] + .LOSE %LSSYS +] +IFE ITS,[ + + SKIPE MULTSG + JRST CLN2 + HLRE D,B ; - # of pges to flush + HRLI B,.FHSLF ; specify hacking hom fork + MOVNI A,1 + MOVEI C,0 + + PMAP + ADDI B,1 + AOJL D,.-2 +] + + MOVE B,PURTOP ; now fix up pointers + MOVEM B,PURBOT ; to indicate no pure +CPOPJ: POPJ P, + +IFE ITS,[ +CLN2: HLRE C,B ; compute pos no. pages + HRLI B,.FHSLF + MOVNS C + MOVNI A,1 ; flushing pages + HRLI C,PM%CNT + MOVE D,NSEGS + MOVE E,PURTOP ; for munging table + ADDI B,_9. ; do it to the correct segment + PMAP + ADDI B,1_9. ; cycle through segments + HRRZM E,PURBTB(D) ; mung table + SOJG D,.-3 + + MOVEM E,PURBOT + POPJ P, +] + +; Here to move the entire pure space. +; A/ # and direction of pages to move (+ ==> up) + +MOVPUR: SKIPE NOSHUF + FATAL CANT MOVE PURE SPACE AROUND +IFE ITS,ASH A,1 + SKIPN B,A ; zero movement, ignore call + POPJ P, + + ASH B,PGSHFT ; convert to words for pointer update + MOVE C,PURVEC+1 ; loop through updating non-zero entries + SKIPE 1(C) + ADDM B,1(C) + ADD C,[ELN,,ELN] + JUMPL C,.-3 + + MOVE C,PURTOP ; found pages at top and bottom of pure + ASH C,-PGSHFT + MOVE D,PURBOT + ASH D,-PGSHFT + ADDM B,PURTOP ; update to new boundaries + ADDM B,PURBOT +IFE ITS,[ + SKIPN MULTSG ; in multi-seg mode, must mung whole table + JRST MOVPU1 + MOVN E,NSEGS + HRLZS E + ADDM PURBTB(E) + AOBJN E,.-1 +] +MOVPU1: CAIN C,(D) ; differ? + POPJ P, + JUMPG A,PUP ; if moving up, go do separate CORBLKs + +IFN ITS,[ + SUBM D,C ; -size of area to C (in pages) + MOVEI E,(D) ; build pointer to bottom of destination + ADD E,A + HRLI E,(C) + HRLI D,(C) + DOTCAL CORBLK,[[1000,,200000],[1000,,-1],E,[1000,,-1],D] + .LOSE %LSSYS + POPJ P, + +PUP: SUBM C,D ; pages to move to D + ADDI A,(C) ; point to new top + +PUPL: SUBI C,1 + SUBI A,1 + DOTCAL CORBLK,[[1000,,200000],[1000,,-1],A,[1000,,-1],C] + .LOSE %LSSYS + SOJG D,PUPL + POPJ P, +] +IFE ITS,[ + SUBM D,C ; pages to move to D + MOVSI E,(C) ; build aobjn pointer + HRRI E,(D) ; point to lowest + ADD D,A ; D==> new lowest page + MOVEI F,0 ; seg info + SKIPN MULTSG + JRST XPLS3 + MOVEI F,FSEG-1 + ADD F,NSEGS + ASH F,9. +XPLS3: MOVE G,E + MOVE H,D ; save for outer loop + +PURCL1: MOVSI A,.FHSLF ; specify here + HRRI A,(E) ; get a page + IORI A,(F) ; hack seg i + RMAP ; get a real handle on it + MOVE B,D ; where to go + HRLI B,.FHSLF + MOVSI C,PM%RD+PM%EX + IORI A,(F) + PMAP + ADDI D,1 + AOBJN E,PURCL1 + SKIPN MULTSG + POPJ P, + SUBI F,1_9. + CAIGE F,FSEG_9. + POPJ P, + MOVE E,G + MOVE D,H + JRST PURCL1 + +PUP: SUB D,C ; - count to D + MOVSI E,(D) ; start building AOBJN + HRRI E,(C) ; aobjn to top + ADD C,A ; C==> new top + MOVE D,C + MOVEI F,0 ; seg info + SKIPN MULTSG + JRST XPLS31 + MOVEI F,FSEG + ADD F,NSEGS + ASH F,9. +XPLS31: MOVE G,E + MOVE H,D ; save for outer loop + +PUPL: MOVSI A,.FHSLF + HRRI A,(E) + IORI A,(F) ; segment + RMAP ; get real handle + MOVE B,D + HRLI B,.FHSLF + IORI B,(F) + MOVSI C,PM%RD+PM%EX + PMAP + SUBI E,2 + SUBI D,1 + AOBJN E,PUPL + SKIPN MULTSG + POPJ P, + SUBI F,1_9. + CAIGE F,FSEG_9. + POPJ P, + MOVE E,G + MOVE D,H + JRST PUPL + + POPJ P, +] +IFN ITS,[ +.GLOBAL CSIXBT +CSIXBT: MOVEI 0,5 + PUSH P,[440700,,C] + PUSH P,[440600,,D] + MOVEI D,0 +CSXB2: ILDB E,-1(P) + CAIN E,177 + JRST CSXB1 + SUBI E,40 + IDPB E,(P) + SOJG 0,CSXB2 +CSXB1: SUB P,C%22 + MOVE C,D + POPJ P, +] +GENVN: MOVE C,[440700,,MUDSTR+2] + MOVEI D,5 + MOVEI B,0 +VNGEN: ILDB 0,C + CAIN 0,177 + POPJ P, + IMULI B,10. + SUBI 0,60 + ADD B,0 + SOJG D,VNGEN + POPJ P, + +IFE ITS,[ +MSKS: 774000,,0 + 777760,,0 + 777777,,700000 + 777777,,777400 + 777777,,777776 +] + + ; THESE ARE DIRECTORY SEARCH ROUTINES + + +; THIS ROUTINE DOES A BINARY SEARCH ON A DIRECTORY AND RETURNS A POINTER +; RESTED DOWN TO THE APPROPRIATE SLOT IN THE DIRECTORY. +; ARGS: E==DIR POINTER D==FILE-NAME 1 A==VERSION # +; RETS: A==RESTED DOWN DIRECTORY + +DIRSR1: TLOA 0,400000 ; INDICATION OF ONE ARGUMENT SEARCH +DIRSRC: TLZ 0,400000 ; INDICATOR OF 2 ARGUMENT SEARCH + PUSH P,A ; SAVE VERSION # + HLRE B,E ; GET LENGTH INTO B + MOVNS B + MOVE A,E + HRLS B ; GET BOTH SIDES +UP: ASH B,-1 ; HALVE TABLE + AND B,[-2,,-2] ; FORCE DIVIS BY 2 + MOVE C,A ; COPY POINTER + JUMPLE B,LSTHLV ; CANT GET SMALLER + ADD C,B +IFE ITS, HRRZ F,C ; avoid lossage in multi-sections +IFN ITS, CAMLE D,(C) ; SKIP IF EITHER FOUND OR IN TOP +IFE ITS, CAMLE D,(F) ; SKIP IF EITHER FOUND OR IN TOP + MOVE A,C ; POINT TO SECOND HALF +IFN ITS, CAMN D,(C) ; SKIP IF NOT FOUND +IFE ITS, CAMN D,(F) ; SKIP IF NOT FOUND + JRST WON +IFN ITS, CAML D,(C) ; SKIP IF IN TOP HALF +IFE ITS, CAML D,(F) ; SKIP IF IN TOP HALF + JRST UP + HLLZS C ; FIX UP POINTER + SUB A,C + JRST UP + +WON: JUMPL 0,SUPWIN + MOVEI 0,0 ; DOWN FLAG +WON1: LDB A,[221200,,1(C)] ; GET VERSION NUMBER + CAMN A,(P) ; SKIP IF NOT EQUAL + JRST SUPWIN + CAMG A,(P) ; SKIP IF LT + JRST SUBIT + SETO 0, + SUB C,C%22 ; GET NEW C + JRST SUBIT1 + +SUBIT: ADD C,C%22 ; SUBTRACT + JUMPN 0,C1POPJ +SUBIT1: +IFN ITS, CAMN D,(C) ; SEE WHETHER WERE STILL WINNING +IFE ITS,[ + HRRZ F,C + CAMN D,(F) +] + JRST WON1 +C1POPJ: SUB P,C%11 ; GET RID OF VERSION # + POPJ P, ; LOSE LOSE LOSE +SUPWIN: MOVE A,C ; RETURN ARGUMENT IN A + AOS -1(P) ; SKIP RETURN INDICATES IT WAS FOUND + JRST C1POPJ + +LSTHLV: +IFN ITS, CAMN D,(C) ; LINEAR SEARCH REST +IFE ITS,[ + HRRZ F,C + CAMN D,(F) ; LINEAR SEARCH REST +] + JRST WON + ADD C,C%22 + JUMPL C,LSTHLV + JRST C1POPJ + + ; ROUTINE TO GET A DIRECTORY. ASSUMES MAPCH IS OPEN TO FIXUP OR SAV FILE AND 0 IS THE +; LAST CHAR TO BE HASHED. RETURNS POINTER TO DIRECTORY IN E + +IFN ITS,[ +GETDIR: PUSH P,C + PUSH P,0 + PUSHJ P,SQKIL + MOVEI A,1 ; GET A BUFFER + PUSHJ P,GETBUF + MOVEI C,(B) + ASH C,-10. + DOTCAL CORBLK,[[RDTP],[FME],C,[1000,,MAPCH],[1000,,0]] + PUSHJ P,SLEEPR + POP P,0 + IDIV 0,(B) ; A NOW CONTAINS THE DIRECTORY NUMBER + ADDI A,1(B) + DOTCAL CORBLK,[[RDTP],[FME],C,[1000,,MAPCH],(A)] + PUSHJ P,SLEEPR + MOVN E,(B) ; GET -LENGTH OF DIRECTORY + HRLZS E ; BUILD AOBJN PTR TO DIR + HRRI E,1(B) + POP P,C + POPJ P, +] +; IN WONDERFUL TOPS20 VERSION DIRCHN CONTAINS THE JFN + +IFE ITS,[ +GETDIR: JRST @[.+1] + PUSH P,C + PUSH P,0 + PUSHJ P,SQKIL + MOVEI A,1 ; GET A BUFFER + PUSHJ P,GETBUF + HRROI E,(B) + ASH B,-9. + HRLI B,.FHSLF ; SET UP DESTINATION (CORE) + MOVS A,DIRCHN ; SET UP SOURCE (FILE) + MOVSI C,PM%RD+PM%EX ; READ+EXEC ACCESS + PMAP + POP P,0 + IDIV 0,(E) ; A NOW CONTAINS THE DIRECTORY NUMBER + ADDI A,1(E) ; POINT TO THE DIRECTORY ENTRY + MOVE A,(A) ; GET THE PAGE NUMBER + HRL A,DIRCHN ; SET UP SOURCE (FILE) + PMAP ; AGAIN READ IN DIRECTORY + MOVEI A,(E) + MOVN E,(E) ; GET -LENGTH OF DIRECTORY + HRLZS E ; BUILD AOBJN PTR TO DIR + HRRI E,1(A) + POP P,C + SKIPN MULTSG + POPJ P, + POP P,21 + SETZM 20 + XJRST 20 +] +; HERE IF CAN'T FIND FIXUP FILE IN MAIN DIRECTORY + +NOFXUP: +IFE ITS,[ + MOVE A,DIRCHN ; JFN FOR FIXUP FILE + CLOSF ; CLOSE IT + JFCL +] + MOVE A,FXTBL ; GET AOBJN POINTER TO FIXUP TABLE +NOFXU1: HRRZ B,(A) ; GET VERSION TO TRY + HRRM B,VER(P) ; STUFF IN VERSION + MOVEI B,1 ; DUMP IN FIXUP INDICATOR + HRLM B,VER(P) + MOVEM A,TEMP(P) ; SAVE POINTER TO FXTBL + PUSHJ P,OPXFIL ; LOOK FOR FIXUP FILE + JRST NOFXU2 + PUSHJ P,RFXUP ; READ IN THE FIXUP FILE + HRRZS VER(P) ; INDICATE SAV FILE + PUSHJ P,OPXFIL ; TRY OPENING IT + JRST MAPLS0 ; GIVE UP NO SAV FILE TO BE HAD + PUSHJ P,RSAV + JRST FXUPGO ; GO FIXUP THE WORLD +NOFXU2: MOVE A,TEMP(P) ; GET BACK POINTER + AOBJN A,NOFXU1 ; TRY NEXT + JRST MAPLS1 ; NO FILE TO BE HAD + +GETIT: HRRZM B,SPAG(P) ; GET BLOCK OF START + HLRZM B,FLEN(P) ; DAMMIT SAVE THIS! + HLRZ A,B ; GET LENGTH +IFN ITS,[ + .CALL MNBLK + PUSHJ P,TRAGN +] +IFE ITS,[ + MOVE E,MAPJFN + MOVEM E,DIRCHN +] + + JRST PLOD1 + +; ROUTINE TO SEE IF FILE IS NOT OPEN BECAUSE OF FNF AND FATAL IF SO + +IFN ITS,[ +TRAGN: PUSH P,0 ; SAVE 0 + .STATUS MAPCH,0 ; GET STATUS BITS + LDB 0,[220600,,0] + CAIN 0,4 ; SKIP IF NOT FNF + FATAL MAJOR FILE NOT FOUND + POP P,0 + SOS (P) + SOS (P) ; RETRY OPEN + POPJ P, +] +IFE ITS,[ +OPSAV: MOVSI A,%GJSHT+%GJOLD ; BITS FOR GTJFN + HRROI B,SAVSTR ; STRING POINTER + SKIPE OPSYS + HRROI B,TSAVST + GTJFN + FATAL CANT FIND SAV FILE + MOVEM A,MAPJFN ; STORE THE JFN + MOVE B,[440000,,OF%RD+OF%EX+OF%THW+OF%DUD] + OPENF + FATAL CANT OPEN SAV FILE + POPJ P, +] + +; OPMFIL IS USED TO OPEN A FILE ON MUDTMP. IT CAN OPEN EITHER A SAV OR FIXUP FILE +; AND THE VERSION NUMBER IS SPECIFIED. THE ARGUMENTS ARE +; NAM-1(P) HAS SIXBIT OF FILE NAME +; VER-1(P) HAS 0,,VERSION # FOR SAV FILE AND 1,,VERSION# FOR FIXUP FILE +; RETURNS LENGTH OF FILE IN SLEN AND + +; OPXFIL IS A KLUDGE FOR GETTING SAV AND FIXUP FILES OFF OF THE MDLLIB +; DIRECTORY DURING THE CHANGEOVER TO PRE- AND POST- MUDSAV WORLDS + +OPXFIL: MOVEI 0,1 + MOVEM 0,WRT-1(P) + JRST OPMFIL+1 + +OPWFIL: SETOM WRT-1(P) + SKIPA +OPMFIL: SETZM WRT-1(P) + +IFN ITS,[ + HRRZ C,VER-1(P) ; GET VERSION NUMBER + PUSHJ P,NTOSIX ; CONVERT TO SIXBIT + HRLI C,(SIXBIT /SAV/) ; BUILD SECOND FILE NAME + HLRZ 0,VER-1(P) + SKIPE 0 ; SKIP IF SAV + HRLI C,(SIXBIT/FIX/) + MOVE B,NAM-1(P) ; GET NAME + MOVSI A,7 ; WRITE MODE + SKIPL WRT-1(P) + MOVSI A,6 ; READ MODE +RETOPN: .CALL FOPBLK + JRST OPCHK ; SEE IF FIXUP IS NECESSARY OR JUST REOPENING + DOTCAL FILLEN,[[1000,,MAPCH],[2000,,A]] + .LOSE 1000 + ADDI A,PGMSK ; ROUND + ASH A,-PGSHFT ; TO PAGES + MOVEM A,FLEN-1(P) + SETZM SPAG-1(P) + AOS (P) ; SKIP RETURN TO SHOW SUCCESS + POPJ P, + +OPCHK: .STATUS MAPCH,0 ; GET STATUS BITS + LDB 0,[220600,,0] + CAIE 0,4 ; SKIP IF FNF + JRST OPCHK1 ; RETRY + POPJ P, + +OPCHK1: MOVEI 0,1 ; SLEEP FOR A WHILE + .SLEEP + JRST OPCHK + +; NTOSIX GETS NUMBER IN C AND CONVERTS IT TO SIXBIT AND RETURNS RESULT IN C + +NTOSIX: PUSH P,A ; SAVE A AND B + PUSH P,B + PUSH P,D + MOVE D,[220600,,C] + MOVEI A,(C) ; GET NUMBER + MOVEI C,0 + IDIVI A,100. ; GET RESULT OF DIVISION + SKIPN A + JRST ALADD + ADDI A,20 ; CONVERT TO DIGIT + IDPB A,D +ALADD: MOVEI A,(B) + IDIVI A,10. ; GET TENS DIGIT + SKIPN C + SKIPE A ; IF BOTH 0 BLANK DIGIT + ADDI A,20 + IDPB A,D + SKIPN C + SKIPE B + ADDI B,20 + IDPB B,D + POP P,D + POP P,B + POP P,A + POPJ P, + +] + +IFE ITS,[ + MOVE E,P ; save pdl base + MOVE B,NAM-1(E) ; GET FIRST NAME + PUSH P,C%0 ; [0]; slots for building strings + PUSH P,C%0 ; [0] + MOVE A,[440700,,1(E)] + MOVE C,[440600,,B] + +; DUMP OUT SIXBIT NAME + + MOVEI D,6 + ILDB 0,C + JUMPE 0,.+4 ; violate cardinal ".+ rule" + ADDI 0,40 ; to ASCII + IDPB 0,A + SOJG D,.-4 + + MOVE 0,[ASCII / SAV/] + HLRZ C,VER-1(E) ; GET SAV/FIXUP FLAG + SKIPE C + MOVE 0,[ASCII / FIX/] + PUSH P,0 + HRRZ C,VER-1(E) ; get ascii of vers no. + PUSHJ P,NTOSEV ; CONVERT TO STRING LEFT JUSTIFIED + PUSH P,C + MOVEI B,-1(P) ; point to it + HRLI B,260700 + HRROI D,1(E) ; point to name + MOVEI A,1(P) + MOVSI 0,100000 ; INPUT FILE (GJ%OLD) + SKIPGE WRT-1(E) + MOVSI 0,400000 ; OUTPUT FILE (GJ%FOU) + PUSH P,0 + PUSH P,[377777,,377777] + MOVE 0,[-1,,[ASCIZ /DSK/]] + SKIPN OPSYS + MOVE 0,[-1,,[ASCIZ /PS/]] + PUSH P,0 + HRROI 0,[ASCIZ /MDL/] + SKIPLE WRT-1(E) + HRROI 0,[ASCIZ /MDLLIB/] ; USE MDLLIB FOR SPECIAL CASE + PUSH P,0 + PUSH P,D + PUSH P,B + PUSH P,C%0 ; [0] + PUSH P,C%0 ; [0] + PUSH P,C%0 ; [0] + MOVEI B,0 + MOVE D,4(E) ; save final version string + GTJFN + JRST OPMLOS ; FAILURE + MOVEM A,DIRCHN + MOVE B,[440000,,OF%RD+OF%EX] + SKIPGE WRT-1(E) + MOVE B,[440000,,OF%RD+OF%WR] + OPENF + FATAL OPENF FAILED + MOVE P,E ; flush crap + PUSH P,A + SIZEF ; get length + JRST MAPLOS + SKIPL WRT-1(E) + MOVEM C,FLEN-1(E) ; ONLY SAVE LENGTH FOR READ JFNS + SETZM SPAG-1(E) + +; RESTORE STACK AND LEAVE + + MOVE P,E + MOVE A,C ; NUMBER OF PAGES IN A, DAMN! + AOS (P) + POPJ P, + +OPMLOS: MOVE P,E + POPJ P, + +; CONVERT A NUMBER IN C TO AN ASCII STRING LEFT JUSTIFIED IN C + +NTOSEV: PUSH P,A ; SAVE A AND B + PUSH P,B + PUSH P,D + MOVE D,[440700,,C] + MOVEI A,(C) ; GET NUMBER + MOVEI C,0 + IDIVI A,100. ; GET RESULT OF DIVISION + JUMPE A,ALADD + ADDI A,60 ; CONVERT TO DIGIT + IDPB A,D +ALADD: MOVEI A,(B) + IDIVI A,10. ; GET TENS DIGIT + ADDI A,60 + IDPB A,D +ALADD1: ADDI B,60 + IDPB B,D + POP P,D + POP P,B + POP P,A + POPJ P, + +] + +; ROUTINE TO READ IN THE FIXUPS FROM DIRCHN OR MAPCH WORKS +; FOR FIXUP FILE OR FIXUPS IN A SEPERATE FILE AS LONG AS THE +; CHANNEL IS OPENED AND ACCESSED TO THE RIGHT PLACE + +RFXUP: +IFN ITS,[ + MOVE 0,[-2,,A] ; PREPARE TO READ VERSION AND LENGTH + .IOT MAPCH,0 ; READ IT IN + SKIPGE 0 ; SKIP IF NOT HIT EOF + FATAL BAD FIXUP FILE + MOVEI A,-2(A) ; COUNT FOR FIRST 2 WORDS + HRRM B,VER-1(P) ; SAVE VERSION # + .IOPUS MAPCH, ; PUSH THE MAPPING CHANNEL + SETOM PLODR + PUSHJ P,IBLOCK ; GET A UVECTOR OF APPROPRIATE SIZE + SETZM PLODR + .IOPOP MAPCH, + MOVE 0,$TUVEC + MOVEM 0,-1(TP) ; SAVE UVECTOR + MOVEM B,(TP) + MOVE A,B ; GET AOBJN POINTER TO UVECTOR FOR IOT + .IOT MAPCH,A ; GET FIXUPS + .CLOSE MAPCH, + POPJ P, +] + +IFE ITS,[ + MOVE A,DIRCHN + BIN ; GET LENGTH OF FIXUP + MOVE C,B + MOVE A,DIRCHN + BIN ; GET VERSION NUMBER + HRRM B,VER-1(P) + SETOM PLODR + MOVEI A,-2(C) + PUSHJ P,IBLOCK + SETZM PLODR + MOVSI 0,$TUVEC + MOVEM 0,-1(TP) + MOVEM B,(TP) + MOVE A,DIRCHN + HLRE C,B +; SKIPE OPSYS ; SKIP IF TOPS20 SINCE C MUST BE NEGETIVE +; MOVNS C ; C IS POSITIVE FOR TENEX ????? + HRLI B,444400 + SIN + MOVE A,DIRCHN + CLOSF + FATAL CANT CLOSE FIXUP FILE + RLJFN + JFCL + POPJ P, +] + +; ROUTINE TO READ IN THE CODE + +RSAV: MOVE A,FLEN-1(P) + PUSHJ P,ALOPAG ; GET PAGES + JRST MAPLS2 + MOVE E,SPAG-1(P) + +IFN ITS,[ + MOVN A,FLEN-1(P) ; build aobjn pointer + MOVSI A,(A) + HRRI A,(B) + MOVE B,A + HRRI 0,(E) + DOTCAL CORBLK,[[1000,,104000],[1000,,-1],A,[1000,,MAPCH],0] + .LOSE %LSSYS + .CLOSE MAPCH, + POPJ P, +] +IFE ITS,[ + PUSH P,B ; SAVE PAGE # + MOVS A,DIRCHN ; SOURCE (MUDSAV) + HLRM A,SJFNS ; SAVE POINTER FOR FUTURE CLOSING + HRR A,E + HRLI B,.FHSLF ; DESTINATION (FORK) + MOVSI C,PM%RD+PM%CPY ; MAKE COPY ON WRITE + SKIPE OPSYS + JRST RSAV1 ; HANDLE TENEX + TLO C,PM%CNT ; REPEAT COUNT BIT FOR TOPS20 + HRR C,FLEN-2(P) ; PAGE (FOR PUSHJ AND PUSHED B) + PMAP +RSAVDN: POP P,B + MOVN 0,FLEN-1(P) + HRL B,0 + POPJ P, + +RSAV1: HRRZ D,FLEN-2(P) ; GET IN PAGE COUNT +RSAV2: PMAP + ADDI A,1 ; NEXT PAGE + ADDI B,1 + SOJN D,RSAV2 ; LOOP + JRST RSAVDN +] + +PDLOV: SUB P,[NSLOTS,,NSLOTS] + PUSH P,C%0 ; [0]; CAUSE A PDL OVERFLOW + JRST .-1 + +; CONSTANTS RELATED TO DATA BASE +DEV: SIXBIT /DSK/ +MODE: 6,,0 +MNDIR: SIXBIT /MUDSAV/ ; DIR OF MAIN DATA BASE FILES +WRKDIR: SIXBIT /MUDTMP/ ; DIRECTORY OF UPDATE FILES + +IFN ITS,[ +MNBLK: SETZ + SIXBIT /OPEN/ + MODE + DEV + [SIXBIT /SAV/] + [SIXBIT /FILE/] + SETZ MNDIR + + +FIXBLK: SETZ + SIXBIT /OPEN/ + MODE + DEV + [SIXBIT /FIXUP/] + [SIXBIT /FILE/] + SETZ MNDIR + +FOPBLK: SETZ + SIXBIT /OPEN/ + A + DEV + B + C + SETZ WRKDIR + +FXTBL: -2,,.+1 + 55. + 54. +] +IFE ITS,[ + +FXSTR: ASCIZ /PS:FIXUP.FILE/ +SAVSTR: ASCIZ /PS:SAV.FILE/ +TFXSTR: ASCIZ /DSK:FIXUP.FILE/ +TSAVST: ASCIZ /DSK:SAV.FILE/ + +FXTBL: -3,,.+1 + 55. + 54. + 104. +] +IFN SPCFXU,[ + +;This code does two things to code for FBIN; +; 1) Makes dispatches win in multi seg mode +; 2) Makes OBLIST? work with "new" atom format +; 3) Makes LENGTH win in multi seg mode +; 4) Gets AOBJN pointer to code vector in C + +SFIX: PUSH P,A + PUSH P,B + PUSH P,C ; for referring back + +SFIX1: MOVSI B,-MLNT ; for looping through tables + +SFIX2: MOVE A,(C) ; get code word + + AND A,SMSKS(B) + CAMN A,SPECS(B) ; do we match + JRST @SFIXR(B) + + AOBJN B,SFIX2 + +SFIX3: AOBJN C,SFIX1 ; do all of code +SFIX4: POP P,C + POP P,B + POP P,A + POPJ P, + +SMSKS: -1 + 777000,,-1 + -1,,0 + 777037,,0 +MLNT==.-SMSKS + +SPECS: HLRES A ; begin of arg diaptch table + SKIPN 2 ; old compiled OBLIST? + JRST (M) ; compiled LENGTH + ADDI (M) ; begin a case dispatch + +SFIXR: SETZ DFIX + SETZ OBLFIX + SETZ LFIX + SETZ CFIX + +DFIX: AOBJP C,SFIX4 ; make sure dont run out + MOVE A,(C) ; next ins + CAME A,[ASH A,-1] ; still winning? + JRST SFIX3 ; false alarm + AOBJP C,SFIX4 ; make sure dont run out + HLRZ A,(C) ; next ins + CAIE A,(ADDI A,(M)) ; still winning? + JRST SFIX3 ; false alarm + AOBJP C,SFIX4 + HLRZ A,(C) + CAIE A,(PUSHJ P,@(A)) ; last one to check + JRST SFIX3 + AOBJP C,SFIX4 + MOVE A,(C) + CAME A,[JRST FINIS] ; extra check + JRST SFIX3 + + MOVSI B,(SETZ) +SFIX5: AOBJP C,SFIX4 + HLRZ A,(C) + CAIN A,(SUBM M,(P)) + JRST SFIX3 + CAIE A,M ; dispatch entry? + JRST SFIX3 ; maybe already fixed + IORM B,(C) ; fix it + JRST SFIX5 + +OBLFIX: PUSH P,[-TLN,,TPTR] + PUSH P,C + MOVE B,-1(P) + +OBLFXY: PUSH P,1(B) + PUSH P,(B) + +OBLFI1: AOBJP C,OBLFXX + MOVE A,(C) + AOS B,(P) + AND A,(B) + MOVE B,-1(P) + CAME A,(B) + JRST OBLFXX + AOBJP B,DOOBFX + MOVEM B,-1(P) + JRST OBLFI1 + +OBLFXX: SUB P,C%22 ; for checking more ins + MOVE B,-1(P) + ADD B,C%22 + JUMPGE B,OBLFX1 + MOVEM B,-1(P) + MOVE C,(P) + JRST OBLFXY + + +INSBP==331100 ; byte pointer for ins field +ACBP==270400 ; also for ac +INDXBP==220400 + +DOOBFX: MOVE C,-2(P) + SUB P,C%44 + MOVEI B,<<(HRRZ)>_<-9>> ; change em + DPB B,[INSBP,,(C)] ; SKIPN==>HRRZ + LDB A,[ACBP,,(C)] ; get AC field + MOVEI B,<<(JUMPE)>_<-9>> + DPB B,[INSBP,,1(C)] + DPB A,[ACBP,,1(C)] + AOS 1(C) ; JRST FOO==>JUMPE ac,FOO+1 + MOVE B,[CAMG VECBOT] + DPB A,[ACBP,,B] + MOVEM B,2(C) ; JUMPL ==> CAMG ac,VECBOT + HRRZ A,3(C) ; get indicator of existence of ADD AC,TVP + CAIE A,TVP ; skip if extra ins exists + JRST NOATVP + MOVSI A,(JFCL) + EXCH A,4(C) + MOVEM A,3(C) + ADD C,C%11 +NOATVP: TLC B,(CAMG#HRLI) ; change CAMG to HRLI (preserving AC) + HRRZ A,4(C) ; see if moves in type + CAIE A,$TOBLS + SUB C,[1,,1] ; fudge it + HLLOM B,5(C) ; in goes HRLI -1 + CAIE A,$TOBLS ; do we need a skip? + JRST NOOB$ + MOVSI B,(CAIA) ; skipper + EXCH B,6(C) + MOVEM B,7(C) + ADD C,[7,,7] + JRST SFIX3 + +NOOB$: MOVSI B,(JFCL) + MOVEM B,6(C) + ADD C,C%66 + JRST SFIX3 + +OBLFX1: MOVE C,(P) + SUB P,C%22 + JRST SFIX3 + +; Here to fixup compiled LENGTH + +LFIX: MOVSI B,-LLN ; for checking other LENGTH ins + PUSH P,C + +LFIX1: AOBJP C,LFIXY + MOVE A,(C) + AND A,LMSK(B) + CAME A,LINS(B) + JRST LFIXY + AOBJN B,LFIX1 + + POP P,C ; restore code pointer + MOVE A,(C) ; save jump for its addr + MOVE B,[MOVSI 400000] + MOVEM B,(C) ; JRST .+2 ==> MOVSI 0,400000 + LDB B,[ACBP,,1(C)] ; B==> AC of interest + ADDI A,2 + DPB B,[ACBP,,A] + MOVEI B,<<(JUMPE)>_<-9.>> + DPB B,[INSBP,,A] + EXCH A,1(C) + TLC A,(HRR#HRRZ) ; HRR==>HRRZ + HLLZM A,2(C) ; TRNN AC,-1 ==> HRRZ AC,(AC) + MOVEI B,(AOBJN (M)) + HRLM B,3(C) ; AOBJP AC,.-2 ==> AOBJN 0,.-2 + MOVE B,2(C) ; get HRRZ AC,(AC) + TLZ B,17 ; kill (AC) part + MOVEM B,4(C) ; HLRZS AC ==> HRRZ AC,0 + ADD C,C%44 + JRST SFIX3 + +LFIXY: POP P,C + JRST SFIX3 + +; Fixup a CASE dispatch + + CFIX: LDB A,[ACBP,,(C)] + AOBJP C,SFIX4 + HLRZ B,(C) ; Next ins + ANDI B,777760 + CAIE B,(JRST @) + JRST SFIX3 + LDB B,[INDXBP,,(C)] + CAIE A,(B) + JRST SFIX3 + MOVE A,(C) ; ok, fix it up + TLZ A,20 ; kill indirection + MOVEM A,(C) + HRRZ B,-1(C) ; point to table + ADD B,(P) ; point to code to change + +CFIXLP: HLRZ A,(B) ; check one out + TRZ A,400000 ; kill bit + CAIE A,M ; check for just index (or index with SETZ) + JRST SFIX3 + MOVEI A,(JRST (M)) + HRLM A,(B) + AOJA B,CFIXLP + +DEFINE FOO LBL,LNT,LBL2,L +LBL: + IRP A,,[L] + IRP B,C,[A] + B + .ISTOP + TERMIN + TERMIN +LNT==.-LBL +LBL2: + IRP A,,[L] + IRP B,C,[A] + C + .ISTOP + TERMIN + TERMIN +TERMIN + +IMSK==777017,,0 +AIMSK==777000,,-1 + +FOO OINS,OLN,OMSK,[[,IMSK],[,IMSK],[MOVE,AIMSK] + [,AIMSK],[,IMSK] + [,AIMSK],[MOVEI,AIMSK]] + +FOO OINS3,OLN3,OMSK3,[[,IMSK],[,IMSK],[MOVE,AIMSK] + [,IMSK],[MOVEI,AIMSK]] + +FOO OINS2,OLN2,OMSK2,[[,IMSK],[,IMSK],[,AIMSK] + [MOVE,AIMSK],[,AIMSK],[,IMSK] + [,AIMSK],[MOVEI,AIMSK]] + +FOO OINS4,OLN4,OMSK4,[[,IMSK],[,IMSK],[,AIMSK] + [MOVE,AIMSK],[,IMSK],[MOVEI,AIMSK]] + +TPTR: -OLN,,OINS + OMSK-1 + -OLN2,,OINS2 + OMSK2-1 + -OLN3,,OINS3 + OMSK3-1 + -OLN4,,OINS4 + OMSK4-1 +TLN==.-TPTR + +FOO LINS,LLN,LMSK,[[,AIMSK],[,AIMSK],[,IMSK] + [,<-1,,777760>]] + +] +IMPURE + +SAVSNM: 0 ; SAVED SNAME +INPLOD: 0 ; FLAG SAYING WE ARE IN MAPPUR + +IFE ITS,[ +MAPJFN: 0 ; JFN OF SAV FILE +DIRCHN: 0 ; JFN USED BY GETDIR +] + +PURE + +END + diff --git a//muddle.347 b//muddle.347 new file mode 100644 index 0000000..cb732d5 --- /dev/null +++ b//muddle.347 @@ -0,0 +1,1254 @@ +; THE FOLLOWING INFORMATION IS MEANT AS GUIDE TO THE CARE AND FEEDING +; OF MUDDLE. IT ATTEMPTS TO SPECIFY PROGRAMMING CONVENTIONS AND +; SUPPLY SYMBOLS AND MACROS NEEDED BY ALL MODULES IN A MUDDLE. + +; FOR EFFICIENCY THE STANDARD MODE OF RUNNING IS UNINTERRUPTABLE. +; WITH EXPLICIT CHECKS FOR PENDING INTERRUPTS. THE INTGO MACRO +; PERFORMS THE APPROPRIATE CHECK + +; FOR INTERRUPTS TO WORK IN INTERRUPTABLE CODE, IT MUST +; BE ABSOLUTELY PURE. BETWEEN ANY TWO INSTRUCTIONS OF +; INTERRUPTABLE CODE THERE MAY BE AN INTERUPT IN WHICH +; A COMPACTING GARBAGE COLLECTION MAY OCCUR. +; NOTE: A SCRATCH AC MAY CONTAIN POINTERS TO GC SPACE IN +; INTERRUPTABLE CODE OR DURING AN INTGO IF THE TYPE CODE FOR THAT AC'S +; SLOT IN THE PROCESS VECTOR IS SET TO REFLECT ITS CONTENTS. + +; ALL ATOM POINTERS WILL BE REFERRED TO IN ASSEMBLED CODE BY +; MQUOTE -- FOR NORMAL ATOMS +; EQUOTE -- FOR ERROR COMMENT ATOMS + +; FUNCTION CALLS TO INITIAL FUNCTIONS WILL BE CALLED USING THE FOLLOWING: + +; MCALL N, ;SEE MCALL MACRO +; ACALL AC, ; SEE ACALL MACRO + +; UNLESS PNAME IS NOT A VALID MIDAS SYMBOL, IN WHICH CASE ANOTHER INTERNAL +; NAME WILL BE USED + +; WHEN CALLING A SUBR THROUGH AN INDEX OR INDIRECT, THE UUOS GENERATED +; BY THE MACROS SHOULLD BE USED. +; THESE ARE .MCALL AND .ACALL -- EXAMPLE: +; .ACALL A,@(B) + + + + + + ; ORGANIZATION OF CORE STORAGE IN THE MUDDLE SYSTEM (ENVIRONMENT) + +; 20: SPECIAL CODE FOR UUO AND INTERUPTS + +;CODBOT: WORD CONTAINING LOCATION OF BOTTOMMOST WORD OF IMPURE CODE + +; --IMPURE CODE-- + +;CODTOP: WORD CONTAINING LOCATION OFWORD AFTER LAST WORD OF CODE + +;PARBOT: WORD CONTAINING LOCATION OFBOTTOMMOST LIST + +; --PAIRSS-- + +;PARTOP: WORD CONTAINING LOCATION OFWORD AFTER LAST PAIR WORD + +;VECBOT: WORD CONTAINING LOCATION OFFIRST WORD OF VECTORS + +; --VECTORS-- + +;VECTOP: WORD CONTAINING LOCATION OFWORD AFTER TOPMOST VECTOR +; THE WORD BEFORE VECTOP IS THE DOPE FOR THE LAST VECTOR + +; --GC MARK PDL (SOMETIMES NOT THERE)-- + +;CORTOP: TOP OF LOW-SEGMENT/IMPURE CORE + +;600000: START OF PURE CODE (SHARED ALSO) + +; --PURE CODE-- + +; + + + ; BASIC DATA TYPES PRE-DEFINED IN MUDDLE + +; PRIMITIVE DATA TYPES +; IF T IS A DATA TYPE THEN $T=[T,,0] + +; DATA TYPES ARE ASSIGNED BY THE TYPMAK MACRO IN SOME ARBITRARY ORDER + + +;TLOSE ;ILLEGAL TYPE (USED PRIMARILY FOR ERRORS) +;TFIX ;FIXED POINT +;TFLOAT ;FLOATING POINT +;TCHRS ;WORD OF UP TO 5 ASCII CHARACTERS +;TENTRY ; MARKS BEGINNING OF A FRAME ON TP STACK +;TSUBR ;BUILT IN FUNCTION WITH EVALUATED ARGS +;TFSUBR ;BUILT IN FUNCTION WITH UN-EVALUATED ARGS +;TUNBOU ;TYPE GIVEN TO UNBOUND OR UNASSIGNED ATOM +;TBIND ;MARKS BEGINNING OF BINDING BLOCK ON TP STACK +;TILLEG ;POINTER PREVIOUSLY HERE NOW ILLEGAL +;TTIME ;UNIQUE NUMBER (SEE FLOAD) +;TLIST ;POINTER TO LIST ELEMENT +;TFORM ;POINTER TO LIST ELEMENT BUT USED AS AN EXPRESSION +;TSEG ;SAME AS FORM BUT VALUE IS MUST BE STRUCTURED AND IS USED +; ;AS A SEGMENT +;TEXPR ;POINTER TO LIST ELEMENT BUT USED AS AN INTERPRETIVE FUNCTION +;TFUNAR ;LIKE TEXPR BUT HAS PARTIALLY EVALUATED ARGS +;TLOCL ;LOCATIVE TO LIST ELEMENT (SEE AT,IN AND SETLOC) +;TFALSE ;NOT TRUTH +;TDEFER ;POINTER TO REAL VALUE (ONLY APPEARS AS CAR OF LIST) +;TUVEC ;AOBJN POINTER TO UNIFORM VECTOR +;TOBLS ;AOBJN TO UVEC OF LISTS OF ATOMS. USED AS SYMBOL TABLE +;TVEC ;VECTOR (AOBJN POINTER TO GENERALIZED VECTOR) +;TCHAN ;VECTOR OF INFO DESCRIBING AN I/O CHANNEL +;TLOCV ;LOCATIVE TO GENERAL VECTOR (SEE AT,IN AND SETLOC) +;TTVP ;POINTER TO TRANSFER VECTOR +;TBVL ;BEGINS A VECTOR BINDING ON THE TP STACK +;TTAG ;VECTOR OF INFO SPECIFYING A GENERALIZED TAG +;TPVP ;POINTER TO PROCESS VECTOR +;TLOCI ;POINTER TO ATOM VALUE ON STACK (INTERNAL NOT SEEN BY USER) +;TTP ;POINTER TO MAIN MARKED STACK +;TSP ;POINTER TO CURRENT BINDINGS ON STACK +;TLOCS ;LOCATIVE TO STACK (NOT CURRENTLY USED) +;TPP ;POINTER TO PLANNER PDL (NOT CURRENTLY USED) +;TPLD ;POINTER TO P-STACK (UNMARKED) +;TARGS ;POINTER TO AN ARG BLOCK (HAIRY KLUDGE) +;TAB ;SAVED AB (NOT GIVEN TO USER) +;TTB ;SAVED TB (NOT GIVEN TO USER) +;TFRAME ;USER POINTER TO STACK FRAME +;TCHSTR ;BYTE POINTER TO STRING OF CHARS (COUNT ALSO INCLUDED) +;TATOM ;POINTER TO ATOM +;TLOCD ;USER LOCATIVE TO ATOM VALUE +;TBYTE :POINTER TO ARBITRARY BYTE STRING (NOT CURRENTLY USED) +;TENV ;USER POINTER TO FRAME USED AS AN ENVIRONMENT +;TACT ;USER POINTER TO FRAME FOR A NAMED ACTIVATION +;TASOC ;ASSOCIATION TRIPLE +;TLOCU ;LOCATIVE TO UVECTOR ELEMENT (SEE AT,IN AND SETLOC) +;TLOCS ;LOCATIVE TO A BYTE IN A CHAR STRING (SEE AT,IN AND SETLOC) +;TLOCA ;LOCATIVE TO ELEMENT IN ARG BLOCK +;TENTS ;NOT USED +;TBS ; "" +;TPLDS ; "" +;TPC ; "" +;TINFO ;POINTER TO LIST ELEMENT USED WITH ARG POINTERS +;TNBS ;NOT USED +;TBVLS ;NOT USED +;TCSUBR ;CARE SUBR (USED ONLY WITH CUDDLE SEE -- WJL) +;TWORD ;36-BIT WORD +;TRSUBR ;COMPILED PROGRAM (ACTUALLY A VECTOR POINTER) +;TCODE ;UNIFORM VECTOR OF INSTRUCTIONS +;TCLIST ;NOT USED +;TBITS ;GENERAL BYTE POINTER +;TSTORA ;POINTER TO NON GC IMPURE STUFF +;TPICTU ;E&S CODE IN NON GC SPACE +;TSKIP ;ENVIRONMENT SPLICE +;TLINK ;LEXICAL LINK +;TINTH ;INTERRUPT HEADER +;THAND ;INTERRUPT HANDLER +;TLOCN ;LOCATIVE TO ASSOCIATION +;TDECL ;POINTER TO LIST OF ATOMS AND TYPE DECLARATIONS +;TDISMI ;TYPE MEANING DONT RUN REST OF HANDLERS +;TDCLI ; INTERNAL TYPE FOR SAVED FUNCTION BODY +;TMENT ; POINTER TO MAIN ENTRY OF WHICH THIS IS PART +;TENTER ; NON-MAIN ENTRY TO AN RSUBR +;TSPLICE ; RETURN FROM READ MACRO MEANS SPLICE SUBELEMENTS IN +;TPCODE ; PURE CODE POINTER IN FUNNY FORMAT +;TTYPEW : TYPE WORD +;TTYPEC ; TYPE CODE +;TGATOM ; ATOM WITH GVALUE +;TREADA ; READ ACTIVATION HACK +;TUNWIN ; INTERNAL FOR UNWIND SPEC ON STACK +;TUBIND ; BINDING OF UNSPECIAL ATOM +;TMACRO ; EVAL MACRO +;TOFFS ; OFFSET FOR NTHING AND PUTTING + +; STORGE ALLOCATION TYPES. ALLOCATED BY AN "IRP" LATER IN THIS FILE + + +;S1WORD ;UNMARKED STUFF OF NO INTEREST TO AGC +;S2WORD ;POINTERS TO ELEMENTS IN PAIR SPACE (LIST, FORM, EXPR ETC.) +;S2DEFR ;DEFERRED LIST VALUES +;SNWORD ;POINTERS TO UNIFORM VECTORS +;S2NWOR ;POINTERS TO GENERAL VECTORS +;STPSTK ;STACK POINTERS +;SPSTK ;UNMARKED STACK POINTERS +;SARGS ;POINTERS TO ARG BLOCKS (USER) +;SABASE ;POINTER TO ARG BLOCK (INTERNAL) +;STBASE ;POINTER TO FRAME (INTERNAL) +;SFRAME ;POINTER TO FRAME (USER) +;SBYTE ;GENERAL BYTE POINTER +;SATOM ;POINTER TO ATOM +;SLOCID ;POINTER TO VALUE CELL OF ATOM +;SPVP ;PROCESS VECTORS +;SCHSTR ;ASCII BYTE POINTER +;SASOC ;POINTER TO ASSOCIATION BLOCK +;SINFO ;LIST CELL CONTAINING EXTRA ARGBLOCK INFO +;SSTORE ;NON GC STORGAGE POINTER +;SLOCA ;ARG BLOCK LOCATIVE +;SLOCD ;USER VALUE CELL LOCATIVE +;SLOCS ;LOCATIVE TO STRING +;SLOCU ;LOCATIVE TO UVECTOR +;SLOCV ;LOCATIVE TO GENERAL VECTOR +;SLOCL ;LOCATIVE TO LIST ELEENT +;SLOCN ;LOCATIVE TO ASSOCIATION +;SGATOM ;REALLY ATOM BUT SPECIAL GC HACK +;SOFFS ;OFFSET (SAT BECAUSE LIST IN LH, FIX IN RH) + +;NOTE: TO FIND OUT IF A GIVEN STORAGE ALLOCATION TYPE NEEDS TO BE DEFERRED, REFER TO +;LOCATION "MKTBS:" OFFSET BY THE STORAGE TYPE. IF IT IS <0, THAT SAT NEEDS TO BE DEFERRED. +; +;ONE WAY TO DO THIS IS TO PUT A REAL TYPE CODE IN AC A AND PUHSJ P,NWORDT +; A WILL CONTAIN 1 IF NO DEFERRED NEEDED OR 2 IF DEFER IS NEEDED + + ; SOME MUDDLE DATA FORMATS + +; FORMAT OF LIST ELEMENT + +; WORD 1: SIGN BIT, RESERVED FOR GARBAGE COLLECTOR +; BITS 1-17 TYPE OF FIRST ELEMENT OF LIST +; BITS 18-35 POINTS TO REST OF LIST (ALWAYS ANOTHER LIST OR 0) +; +; WORD 2: DATUM OF FIRST ELEMENT OF LIST OF TYPE SPECIFIED +; +; IF DATUM REQUIRES 54 BITS TO SPECIFY, TYPE WILL BE "TDEFER" AND +; VALUE WILL BE AN 18 BIT POINTER TO FULL 2 WORD PAIR + + + +;FORMAT OF GENERAL VECTOR (OF N ELEMENTS) +;POINTED INTO BY AOBJN POINTER +;A GENERAL VECTOR HAS FEWER THAN 2^16 ELEMENTS + + +; TYPE<1> TYPE OF FIRST OBJECT (THE RIGHT HALF OF THE TYPE WORD MIGHT BE NONZERO) +; OBJ<1> OBJECT OF SPECIFIED TYPE +; TYPE<2> +; OBJ<2> +; . +; . +; . +; TYPE +; OBJ +; VD(1)-VECTOR DOPE--SIGN-NOT UNIFORM, BITS 1-17 TYPE,,18-35 GROWTH/SHRINKAGE +; VD(2)-VECTOR DOPE--SIGN-G.C.; BITS 1-17 ARE 2*N+1,,18-35 G.C. RELOCATION EITHER UP OR DOWN + + + ;SPECIAL VECTORS IN THE INITIAL SYSTEM + +;THE SYSTEM KEEPS RELEVANT INFORMATION CONCERNING ALL TYPES +;IN A TYPE VECTOR, TYPVEC, WHICH MAY BE INDEXED BY THE TYPE NUMBER +;FOUND IN THE TYPE FIELD OF ANY GOODIE. TABLES APLTYP AND EVLTYP ALSO EXIST +;THEY SPECIFY HOW DIFFERENT TYPES EVAL AND APPLY. + +;TYPE IN AC A, PUSHJ P,SAT RETURNS STORAGE TYPE IN A + +;TYPE TO NAME OF TYPE TRANSLATION TABLE + +; TATOM,,+CHBIT+TMPLBT + +; ATOMIC NAME + +; CHBIT ON MEANS YOU CANT RANDOMLY CHTYPE INTO THIS TYPE +; TMPLBT ON MEANS A TEMPLATE EXISTS DESCRIBING THIS + +;AN ATOM IS A BLOCK IN VECTOR SPACE WITH THE FOLLOWING FORMAT + +; ,,<0 OR BINDID> ; TLOCI MEANS VAL EXISTS. + ; 0 MEANS GLOBAL +; ; BINDID SPECS ENV IN + ; WHICH LOCAL VAL EXISTS +; +; +; +; <400000+SATOM,,0> +; ,,0 (SIGN BIT FOR G.C. RH FOR G.C. RELOCATION) + +;POINTERS TO INITIAL STRUCTURES AND ATOMS NEEDED BY COMPILED CODE +;WILL BE POINTED TO BY THE TRANSFER VECTOR +;A POINTER TO THIS VECTOR ALWAYS EXISTS IN AC TVP +;THE FORMAT OF THIS VECTOR IS: + +; TYPE,,0 +; VALUE +; . +; . +; . +; TV DOPE WORDS + + +;INFORMATION CONCERNING EACH PROCESS IS KEPT IN THE PROCESS VECTOR +;A POINTER TO THE CURRENT PROCESS ALWAYS EXISTS IN AC PVP +;THE FORMAT OF A PROCESS VECTOR IS: + +; TFIX,,0 +; PROCID ;UNIQUE ID OF THIS PROCESS + +; 20 ELEMENTS (I.E. 40 WORDS) CONTAINIG SAVED ACS +; CAN BE REFERENCED SYMBOLICALLY USING SYMBOLS +; OF THE FORM AC!STO(PVP) + +; OTHER PROCESS LOCAL INFO LIKE LEXICAL STATE, PROCESS STATE,LAST RESUMER +; . +; . +; . +; PV DOPE WORDS + + + + +;FORMAT OF PUSH DOWN STACKS USED AND CONVENTIONS + + IF1 [ +PRINTC /MUDDLE - INSERT FILE FOR ALL PROGRAMS +/ +] + +IF2 [PRINTC /MUDDLE +/ +] +;AC ASSIGNMNETS + +P"=17 ;THE UNMARKED PDL POINTER (USED BY THE OUTSIDE WORLD AND MUDDLE) +R"=16 ;REFERENCE BASE FOR RSUBRS +M"=15 ;CODE BASE FOR RSUBRS +SP"=10 ;SPECIAL PDL (USED BY MUDDLE FOR VARIABLE BINDINGS)(SPECIAL PDL IS PART OF TP) +TP"=13 ;MARKED PDL (USED BY MUDDLE FOR ARGS TO FUNCTIONS + ;AND MARKED TEMPORARIES) +TB"=12 ;MARKED PDL BASE POINTER AND CURRENT FRAME POINTER +AB"=11 ;ARGUMENT PDL BASE (MARKED) + ;AB IS AN AOBJN POINTER TO THE ARGUMENTS +FRM"=14 ;FUNNY FRAME POINTER +TVP"=7 ;TRANSFER VECTOR POINTER +PVP"=6 ;PROCESS VECTOR POINTER + +;THE FOLLOWING ACS ARE 'SCRATCH' FOR MUDDLE + +A"=1 ; A AND B CONTAIN TYPE AND VALUE UPON FUNCTION RETURNS +B"=2 +C"=3 +D"=4 +E"=5 + +NIL"=0 ;END OF LIST MARKER + +;MACRO TO DEFINE MAIN IF NOT DEFINED + +IF1 [ +DEFINE SYSQ + ITS==1 +; IFE <<<.AFNM1>_-24.>->,ITS==0 + IFN ITS,[PRINTC /ITS VERSION +/] + IFE ITS,[PRINTC /TENEX VERSION +/] + + TERMIN + +; SEGMENT INFO IF TOPS 20 + +FSEG==1 +MAXSEG==30 +GCSEG==36 ; GC COPY SEGMENT +STATM==40 ; STORED IN GC DUMP BYTE POINTER TO SAY + ; ITS AN ATOM (LH) +DEFINE DEFMAI ARG,\D + D==.TYPE ARG + IFE ,ARG==0 + EXPUNGE D + TERMIN +] + +DEFMAI MAIN +DEFMAI READER + +IF2,EXPUNGE DEFMAI + + ;DEFINE TYPES AND $TYPES AND IF MAIN NOT 0, MAKE THE $TYPE WORDS + + +IFN MAIN,NUMPRI==-1 + +IF1 [ +NUMPRI==-1 ;NUMBER OF PRIMITIVE TYPES + +DEFINE TYPMAK SAT,LIST +IRP A,,[LIST] +NUMPRI==NUMPRI+1 +IRP B,,[A] +T!B==NUMPRI +.GLOBAL $!T!B +IFN MAIN,[$!T!B=[T!B,,0] +] +.ISTOP +TERMIN +IFN MAIN,[ +RMT [ADDTYP SAT,A +]] +TERMIN +TERMIN + +;MACRO TO ADD STUFF TO TYPE VECTOR + +IFN MAIN,[ +DEFINE ADDTYP SAT,TYPE,NAME,CHF,IMP,\CH + IFSE [CHF],CH==0 + IFSN [CHF],CH==CHBIT + IFSE [NAME]IN,CH==CHBIT + TATOM,,CH+SAT + IFSN [NAME],[IFSE [NAME]IN,MQUOTE INTERNAL + IFSN [NAME]IN,[IFSE [IMP],MQUOTE [NAME] + IFSN [IMP],IMQUOTE [NAME] + ] + ] + IFSE [NAME],[IFSE [IMP],MQUOTE TYPE + IFSN [IMP],IMQUOTE TYPE + ] + TERMIN +] +] +IF2 [IFE MAIN,[DEFINE TYPMAK SAT,LIST + RMT [EXPUN [LIST] +] + TERMIN +] +] + +;DEFINE THE STORAGE ALLOCATION TYPES IN THE WORLD + + +NUMSAT==0 +GENERAL==440000,,0 ;FLAG FOR BEING A GENERAL VECTOR +.VECT.==40000 + +IF1 [ +DEFINE PRMACR HACKER + +IRP A,,[1WORD,2WORD,2DEFRD,NWORD,2NWORD,TPSTK,PSTK,ARGS +ABASE,TBASE,FRAME,BYTE,ATOM,LOCID,PVP,CHSTR,ASOC,INFO,STORE +LOCA,LOCD,LOCS,LOCU,LOCV,LOCL,LOCN,GATOM,LOCR,LOCT,RDTB,LOCB +DEFQ,OFFS] + +HACKER A + +TERMIN +TERMIN + + + +DEFINE DEFINR B + NUMSAT==NUMSAT+1 + S!B==NUMSAT + TERMIN +] + +PRMACR DEFINR + +STMPLT==NUMSAT+1 + +;MACRO FOR SAVING STUFF TO DO LATER + +.GSSET 4 + +DEFINE HERE G00002,G00003 +G00002!G00003!TERMIN + +IF1 [ +DEFINE RMT A +HERE [DEFINE HERE G00002,G00003 +G00002!][A!G00003!TERMIN] +TERMIN +] + + +RMT [EXPUNGE GENERAL,NUMSTA +] + +DEFINE XPUNGR A + EXPUNGE S!A + TERMIN + +IFE MAIN,[ +RMT [PRMACR XPUNGR +] +] + +C.BUF==1 +C.PRIN==2 +C.BIN==4 +C.OPN==10 +C.READ==40 +C.LAST==100 +C.INTL==200 ; INTERRUPT ON LINE FEEDS +C.ASCII==400 +C.DISK==1000 +C.RAND==2000 +C.TTY==4000 + +; FLAG INDICATING VECTOR FOR GCHACK + +.VECT.==40000 + +; DEFINE SYMBLOS FOR VARIOUS OBLISTS + +SYSTEM==0 ;MAIN SYSTEM OBLIST +ERRORS==1 ;ERROR COMMENT OBLIST +INTRUP==2 ;INERRUPT OBLIST +MUDDLE==3 ;MUDDLE GLOBAL SYMBOLS (ADDRESSES) + +RMT [EXPUNGE SYSTEM,ERRORS,INTRUP +] +; DEFINE SYMBOLS FOR PROCESS STATES + +RUNABL==1 +RESMBL==2 +RUNING==3 +DEAD==4 +BLOCKED==5 + +IFE MAIN,[RMT [EXPUNGE RESMBL,RUNABL,RUNING,DEAD,BLOCKED +] +] ;BUILD THE TYPE CODES AND ADD STUFF TO TYPVEC AND DEFINE $!TYPE) + +IFN MAIN,[RMT [SAVE==. + LOC TYPVLC + ] + ] + + +TYPMAK S1WORD,[[LOSE],[FIX,,,1],[FLOAT,,,1],[CHRS,CHARACTER,,1],[ENTRY,IN],[SUBR,,1]] +TYPMAK S1WORD,[[FSUBR,,1]] +TYPMAK S1WORD,[[UNBOUND,,1],[BIND,IN],[ILLEGAL,,1],TIME] +TYPMAK S2WORD,[[LIST,,,1],[FORM,,,1],[SEG,SEGMENT,,1],[EXPR,FUNCTION,,1]] +TYPMAK S2WORD,[[FUNARG,CLOSURE]] +TYPMAK SLOCL,[[LOCL,,,1]] +TYPMAK S2WORD,[[FALSE,,,1]] +TYPMAK S2DEFRD,[[DEFER,IN]] +TYPMAK SNWORD,[[UVEC,UVECTOR,,1],[OBLS,OBLIST,1,1]] +TYPMAK S2NWORD,[[VEC,VECTOR,,1],[CHAN,CHANNEL,1,1]] +TYPMAK SLOCV,[[LOCV,,,1]] +TYPMAK S2NWORD,[[TVP,IN],[BVL,IN],[TAG,,1]] +TYPMAK SPVP,[[PVP,PROCESS]] +TYPMAK STPSTK,[[LOCI,IN],[TP,IN],[SP,IN],[LOCS,IN]] +TYPMAK S2WORD,[[MACRO]] +TYPMAK SPSTK,[[PDL,IN]] +TYPMAK SARGS,[[ARGS,TUPLE,1,1]] +TYPMAK SABASE,[[AB,IN]] +TYPMAK STBASE,[[TB,IN]] +TYPMAK SFRAME,[[FRAME,,,1]] +TYPMAK SCHSTR,[[CHSTR,STRING,,1]] +TYPMAK SATOM,[[ATOM,,,1]] +TYPMAK SLOCID,[[LOCD,,,1]] +TYPMAK SBYTE,[[BYTE,BYTES]] +TYPMAK SFRAME,[[ENV,ENVIRONMENT],[ACT,ACTIVATION,1,1]] +TYPMAK SASOC,[ASOC] +TYPMAK SLOCU,[[LOCU,,,1]] +TYPMAK SLOCS,[[LOCS,,,1]] +TYPMAK SLOCA,[[LOCA,,,1]] +TYPMAK S1WORD,[[CBLK,IN]] +TYPMAK STMPLT,[[TMPLT,TEMPLATE,1,1]] +TYPMAK SLOCT,[[LOCT]] +TYPMAK SLOCR,[[LOCR,,,1]] +TYPMAK SINFO,[[INFO,IN]] +TYPMAK S2NWORD,[[QRSUBR,QUICK-RSUBR,1],[QENT,QUICK-ENTRY,1]] +TYPMAK SRDTB,[[RDTB,IN]] + +TYPMAK S1WORD,[[WORD,,,1]] +TYPMAK S2NWORD,[[RSUBR,,,1]] +TYPMAK SNWORD,[[CODE,,,1]] +TYPMAK S1WORD,[[SATC,PRIMTYPE-C,1]] +TYPMAK S1WORD,[[BITS]] +TYPMAK SSTORE,[[STORAGE,,,1],PICTURE] +TYPMAK STPSTK,[[SKIP,IN]] +TYPMAK SATOM,[[LINK,,1]] +TYPMAK S2NWORD,[[INTH,IHEADER,1],[HAND,HANDLER,1]] +TYPMAK SLOCN,[[LOCN,LOCAS,,1]] +TYPMAK S2WORD,[[DECL,,,1]] +TYPMAK SATOM,[DISMISS] +TYPMAK S2WORD,[[DCLI,IN]] +TYPMAK S2NWORD,[[ENTER,RSUBR-ENTRY,1,1]] +TYPMAK S2WORD,[SPLICE] +TYPMAK S1WORD,[[PCODE,PCODE,1],[TYPEW,TYPE-W,1],[TYPEC,TYPE-C,1]] +TYPMAK SGATOM,[[GATOM,IN]] +TYPMAK SFRAME,[[READA,,1]] +TYPMAK STBASE,[[UNWIN,IN]] +TYPMAK S1WORD,[[UBIND,IN]] +TYPMAK SLOCB,[LOCB] +TYPMAK SDEFQ,[[DEFQ,IN]] +TYPMAK SOFFS,[[OFFS,OFFSET]] +IFN MAIN,[RMT [LOC SAVE + ] + ] +IF2,EXPUNGE TYPMAK,DOTYPS + +RMT [EQUALS XP EXPUNGE +IF2,XP STMPLT +] +IF1 [ + +DEFINE EXPUN LIST + IRP A,,[LIST] + IRP B,,[A] + EXPUNGE T!B + .ISTOP + TERMIN + TERMIN + TERMIN +] + + +TYPMSK==17777 +MONMSK==TYPMSK#777777 +SATMSK==777 +CHBIT==1000 +TMPLBT==2000 + +IF1 [ +DEFINE GETYP AC,ADR + LDB AC,[221500,,ADR] + TERMIN + +DEFINE PUTYP AC,ADR + DPB AC,[221500,,ADR] + TERMIN + +DEFINE GETYPF AC,ADR + LDB AC,[003700,,ADR] + TERMIN + +DEFINE MONITO + .WRMON==200000 + .RDMON==100000 + .EXMON== 40000 + .GLOBAL .MONWR,.MONRD,.MONEX + RMT [IF2 IFE MAIN, XP .WRMON,.RDMON,.EXMON +] + TERMIN +] + +IFN MAIN,MONITO + +IFE MAIN,[RMT [XP SATMSK,TYPMSK,MONMSK,CHBIT +] +] + ;MUDDLE WIDE GLOBALS + +;DEFINE ENTRIES IN PROCESS VECTOR AS BEING GLOBAL + +IF1 [ +IRP A,,[0,A,B,C,D,E,PVP,TVP,TP,TB,AB,P,PB,SP,M,R,FRM] +.GLOBAL A!STO +TERMIN + +.GLOBAL CALER1,FINIS,VECTOP,VECBOT,INTFLG + +;GLOBALS FOR MACROS IN VECTOR AND PAIR SPACE + +.GLOBAL VECLOC,PARLOC,TVBASE,TVLOC,PVLOC,PVBASE,SQUTBL,SQULOC +.GLOBAL PARTOP,CODTOP,HITOP,HIBOT,SPECBIND,LCKINT +.GLOBAL GETWNA,WNA,TFA,TMA,WRONGT,WTYP,WTYP1,WTYP2,WTYP3,CALER,CALER1 +] + + +;STORAGE ALLOCATIN SPECIFICATION GLOBALS + +NSUBRS==600. ; ESTIMATE OF # OF SUBRS IN WOLD +TPLNT"==2000 ;TEMP PDL LENGTHH +GSPLNT==2000 ;INITIAL GLOBAL SP +GCPLNT"==100. ;GARBAGE COLLECTOR'S PDL LENGTH +PVLNT"==100 ;LENGTH OF INITIAL PROCESS VECTOR +TVLNT"==6000 ;MAX TRANSFER VECTOR +ITPLNT"==100 ;TP FOR GC +PLNT"==1000 ;PDL FOR USER PROCESS + +;LOCATIONS OF VARIOUS STORAGE AREAS + +PARBASE"==32000 ;START OF PAIR SPACE +VECBASE"==44000 ;START OF VECTOR SPACE +IFN MAIN,[PARLOC"==PARBASE +VECLOC"==VECBASE +] + +;INITIAL MACROS + +;SYMBLOS ASSOCIATED WITH STACK FRAMES +;TB POINTS TO CURRENT FRAME, THE SYMBOLS BELOW ARE OFFSETS ON TB + +FRAMLN==7 ;LENGTH OF A FRAME +FSAV==-7 ;POINT TO CALLED FUNCTION +OTBSAV==-6 ;POINT TO PREVIOUS FRAME AND CONTAINS TIME +ABSAV==-5 ;ARGUMENT POINTER +SPSAV==-4 ;BINDING POINTER +PSAV==-3 ;SAVED P-STACK +TPSAV==-2 ;TOP OF STACK POINTER +PCSAV==-1 ;PCWORD + +RMT [EXPUNGE FRAMLN +] +IFE MAIN,[RMT [EXPUNGE PCSAV TPSAV SPSAV PSAV ABSAV FSAV OTBSAV +] +] + +;CALL MACRO +; ARGS ARE PUSHED ON THE STACK AS TYPE VALUE PAIRS + +.GLOBAL .MCALL,.ACALL,FINIS,CONTIN,.ECALL,FATINS,.ERRUU + +; CALL WITH AN ASSEMBLE TIME KNOWN NUMBER OF ARGUMENTS + +IF1 [ +DEFINE ERRUUO X + .ERRUU X + TERMIN + +DEFINE MCALL N,F + .GLOBAL F + IFGE <17-N>,.MCALL N,F + IFL <17-N>,[PRINTC /LOSSAGE AT MCALL - TOO MANY ARGS +/ + .MCALL F + ] + TERMIN + +; CALL WITH RUN TIME KNOWN NUMBER OF ARGS IN AC SPECIFIED BY N + +DEFINE ACALL N,F + .GLOBAL F + .ACALL N,F + TERMIN + +; STANDARD SUBROUTINE RETURN + +; JRST FINIS + +; ARGUMENTS WILL NO LONGER BE ON THE STACK WHEN RETURN HAS HAPPENED +; VALUE SHOULD BE IN A AND B + +;CHECK THAT THE ENTRY POINT WAS CALLED WITH N ARGUMENTS + +DEFINE ENTRY N + IFSN N,,[ + HLRZ A,AB + CAIE A,-2*N + JSP E,GETWNA] +TERMIN + + +; MACROS ASSOCIATED WIT INTERRUPT PROCESSING +;INTERRUPT IF THERE IS A WAITING INTERRUPT + +DEFINE INTGO + SKIPGE INTFLG + JSR LCKINT +TERMIN + +;TO BECOME INTERRUPTABLE + +DEFINE ENABLE + AOSN INTFLG + JSR LCKINT +TERMIN + +;TO BECOME UNITERRUPTABLE + +DEFINE DISABLE + SETZM INTFLG +TERMIN +] + IF1 [ +;MACRO TO BUILD TYPE DISPATCH TABLES EASILY + +DEFINE TBLDIS NAME,DEFAULT,LIST,LNTH,LH,\NN,FLG + +NN==0 + +NAME: + REPEAT LNTH+1,[ + FLG==0 + IRP A,,[LIST] + IRP TYPE,LOCN,[A] + IFE ,[FLG==1 + IFE LH, + IFN LH, +] + .ISTOP + TERMIN + TERMIN + IFE FLG,[ + IFE LH, + IFN LH, + ] + NN==NN+1 +] LOC NAME+LNTH+1 +TERMIN + +; DISPATCH FOR NUMPRI GOODIES + +DEFINE DISTBL NAME,DEFAULT,LIST + TBLDIS NAME,DEFAULT,[LIST]NUMPRI,0 + TERMIN + +DEFINE DISTBS NAME,DEFAULT,LIST + TBLDIS NAME,DEFAULT,[LIST]NUMSAT,0 + TERMIN + +DEFINE DISTB2 NAME,DEFAULT,LIST + TBLDIS NAME,DEFAULT,[LIST]NUMSAT,400000 + TERMIN +] + + +VECFLG==0 +PARFLG==0 + +;MACROS FOR INITIIAL MUDDLE LIST STRUCTURE + +;CHAR STRING MAKER, RETURNS POINTER AND TYPE + +IF1 [ +DEFINE MACHAR NAME,TYPE,VAL,\LNT,WHERE,LAST + TYPE==TCHSTR + VECTGO WHERE + LNT==.LENGTH \NAME!\ + ASCII \NAME!\ + LAST==$." + TCHRS,,0 + $."-WHERE+1,,0 + VAL==LNT,,WHERE + VECRET + +TERMIN +;MACRO TO DEFINE ATOMS + +DEFINE MAKAT NAME,TYAT,VALU,OBLIS,REFER,LOCN,\TVENT,FIRST + FIRST==. + TYAT,,OBLIS + VALU + 0 + ASCII \NAME!\ + 400000+SATOM,,0 + .-FIRST+1,,0 + TVENT==FIRST-.+2,,FIRST + IFSN [LOCN],LOCN==TVENT + ADDTV TATOM,TVENT,REFER + TERMIN + + + + ;MACROS TO SWITCH BACK AND FORTH INTO AND OUT OF VECTOR AND PAIR SPACE +;GENERAL SWITCHER + +DEFINE LOCSET LOCN,RETNAM,NEWLOC,OTHLOC,F1,F2,TOPWRD,\SAVE,SAVEF1,SAVEF2,NEW + + IFE F1,[SAVE==. + LOC NEWLOC + SAVEF2==F2 + IFN F2,OTHLOC==SAVE + F2==0 + DEFINE RETNAM + F1==F1-1 + IFE F1,[NEWLOC==. + F2==SAVEF2 + LOC TOPWRD + NEWLOC + LOC SAVE + ] + TERMIN + ] + + IFN F1,[F1==F1+1 + ] + + IFSN LOCN,,LOCN==. + IFE F1,F1==1 + +TERMIN + + +DEFINE VECTGO LOCN + LOCSET LOCN,VECRET,VECLOC,PARLOC,VECFLG,PARFLG,VECTOP + TERMIN + +DEFINE PARGO LOCN + LOCSET LOCN,PARRET,PARLOC,VECLOC,PARFLG,VECFLG,PARTOP + TERMIN + +DEFINE ADDSQU NAME,\SAVE + SAVE==. + LOC SQULOC + SQUOZE 0,NAME + NAME + SQULOC==. + LOC SAVE + TERMIN + +DEFINE ADDTV TYPE,GOODIE,REFER,\SAVE + SAVE==. + LOC TVLOC + TVOFF==.-TVBASE+1 + TYPE,,REFER + GOODIE + TVLOC==. + LOC SAVE + TERMIN + +;MACRO TO ADD TO PROCESS VECTOR + +DEFINE ADDPV TYPE,GOODIE,OFFS,\SAVE + SAVE==. + LOC PVLOC + PVOFF==.-PVBASE + IFSN OFFS,,OFFS==PVOFF + TYPE,,0 + GOODIE + PVLOC==. + LOC SAVE + TERMIN + + + + + +;MACRO TO DEFINE A FUNCTION ATOM + +DEFINE MFUNCTION NAME,TYPE,PNAME + XMFUNCTION NAME,TYPE,PNAME,0 + TERMIN + +DEFINE IMFUNCTION NAME,TYPE,PNAME + XMFUNCTION NAME,TYPE,PNAME,400000 + TERMIN + +DEFINE XMFUNCTION NAME,TYPE,PNAME,IMP + (TVP) +NAME": + VECTGO DUMMY1 + ADDSQU NAME + IFSE [PNAME],MAKAT NAME,T!TYPE+IMP,NAME,SYSTEM, + IFSN [PNAME],MAKAT [PNAME]T!TYPE+IMP,NAME,SYSTEM, + VECRET + TERMIN + +; VERSION OF MQUOTE WITH IMPURE BIT ON + +DEFINE IMQUOTE ARG,PNAME,OBLIS,\LOCN + (TVP) + + LOCN==.-1 + VECTGO DUMMY1 + IFSE [PNAME],MAKAT [ARG]<400000+TUNBOU>,0,OBLIS,LOCN + + IFSN [PNAME],MAKAT [PNAME]<400000+TUNBOU>,0,OBLIS,LOCN + VECRET + TERMIN + +;MACRO TO DEFINE QUOTED GOODIE + +DEFINE MQUOTE ARG,PNAME,OBLIS,\LOCN + (TVP) + + LOCN==.-1 + VECTGO DUMMY1 + IFSE [PNAME],MAKAT [ARG]TUNBOU,0,OBLIS,LOCN + IFSN [PNAME],MAKAT [PNAME]TUNBOU,0,OBLIS,LOCN + VECRET + TERMIN + + + + +DEFINE CHQUOTE NAME,\LOCN,TYP,VAL + (TVP) + LOCN==.-1 + MACHAR [NAME]TYP,VAL + ADDTV TYP,VAL,LOCN + + TERMIN + + +; SPECIAL ERROR MQUOTE + +DEFINE EQUOTE ARG,PNAME + MQUOTE ARG,[PNAME]ERRORS TERMIN + + +; MACRO DO .CALL UUOS + +DEFINE DOTCAL NM,LIST,\LOCN + .CALL LOCN + RMT [LOCN==. + SETZ + SIXBIT /NM/ + IRP Q,R,[LIST] + IFSN [R][][Q + ] + + IFSE [R][][\ + ] + TERMIN + ] +TERMIN + +; MACRO TO HANDLE FATAL ERRORS + +DEFINE FATAL MSG/ + FATINS [ASCIZ /: FATAL ERROR MSG  /] + TERMIN +] + +CHRWD==5 + +IFN READER,[ +NCHARS==377 +;CHARACTER TABLE GENERATING MACROS + +DEFINE SETSYM WRDL,BYTL,COD + WRD!WRDL==& + WRD!WRDL==\<_<<4-BYTL>*7+1>> + TERMIN + +DEFINE INIWRD N,INIT + WRD!N==INIT + TERMIN + +DEFINE OUTWRD N + WRD!N + TERMIN + +;MACRO TO KILL THESE SYMBOLS LATER + +DEFINE KILLWD N + EXPUNGE WRD!N + TERMIN +DEFINE SETMSK N + MSK!N==<177_<<4-N>*7+1>>#<-1> + TERMIN + +;MACRO TO KILL MASKS LATER + +DEFINE KILMSK N + EXPUNGE MSK!N + TERMIN + +NWRDS==/CHRWD + +REPEAT CHRWD,SETMSK \.RPCNT + +REPEAT NWRDS,INIWRD \.RPCNT,004020100402 + +DEFINE OUTTBL + REPEAT NWRDS,OUTWRD \.RPCNT + TERMIN + + +;MACRO TO GENERATE THE DUMMIES EASLILIER + +DEFINE INITCH \DUM1,DUM2,DUM3 + + +DEFINE SETCOD COD,LIST + IRP CHAR,,[LIST] + DUM1==/5 + DUM2==CHROFF+CHAR-DUM1*5 + SETSYM \DUM1,\DUM2,COD + IFE CHROFF,[DUM1==/5 + DUM2==> + SETSYM \DUM1,\DUM2,COD + ] + TERMIN + TERMIN + +DEFINE SETCHR COD,LIST + IRPC CHAR,,[LIST] + DUM3==<"CHAR>+CHROFF + DUM1==DUM3/5 + DUM2==DUM3-DUM1*5 + SETSYM \DUM1,\DUM2,COD + IFE CHROFF,[DUM3==DUM3+200 + DUM1==DUM3/5 + DUM2==DUM3-DUM1*5 + SETSYM \DUM1,\DUM2,COD + ] + TERMIN + TERMIN + +DEFINE INCRCO OCOD,LIST + IRP CHAR,,[LIST] + DUM1==/5 + DUM2==CHROFF+CHAR-DUM1*5 + SETSYM \DUM1,\DUM2,\ + IFE CHROFF,[DUM1==/5 + DUM2==> + SETSYM \DUM1,\DUM2, + ] + TERMIN + TERMIN + +DEFINE INCRCH OCOD,LIST + IRPC CHAR,,[LIST] + DUM3==<"CHAR>+CHROFF + DUM1==DUM3/5 + DUM2==DUM3-DUM1*5 + SETSYM \DUM1,\DUM2,\ + IFE CHROFF,[DUM3==DUM3+200 + DUM1==DUM3/5 + DUM2==DUM3-DUM1*5 + SETSYM \DUM1,\DUM2, + ] + TERMIN + TERMIN + RMT [EXPUNGE DUM1,DUM2,DUM3 + REPEAT NWRDS,KILLWD \.RPCNT + REPEAT CHRWD,KILMSK \.RPCNT +] + +TERMIN + +INITCH +] + +;REDEFINE END DO ALL THE REMOTES (ON LAST PASS ONLY) + +EQUALS E.END END +EXPUNG END + +DEFINE END ARG + EQUALS END E.END + CONSTANTS + + IMPURE + VARIABLES + PURE + HERE + .LNKOT + IF2 GEXPUN + CONSTANTS + IMPURE + VARIABLES + CODEND==. + LOC CODTOP + CODEND + LOC CODEND + PURE + CODEND==. + LOC HITOP + CODEND + LOC CODEND + IF2 EXPUNGE PARFLG,VECFLG,CHRWD,NN,NUMPRI,PURITY,EAD,ACD,PUSHED + IF2 EXPUNGE INSTNT,DUMMY1,PRIM,PPLNT,GSPLNT,MEDIAT + END ARG + TERMIN + + +;MACROS TO PRINT VERSIONS OF PROGRAMS DURING ASSEMBLY + +IF1 [ +DEFINE NUMGEN SYM,\REST,N + NN==NN-1 + N==&77 + REST== + IFN N,IFGE <31-N>,IFGE ,TOTAL==TOTAL*10.+ + IFN NN,NUMGEN REST + EXPUNGE N,REST + TERMIN + +DEFINE VERSIO N + PRINTC /VERSION = N +/ + TERMIN +] + +TOTAL==0 +NN==7 + +NUMGEN .FNAM2 + +IF1 [ +RADIX 10. + +VERSIO \TOTAL + +RADIX 8 +PROGVN==TOTAL + + +DEFINE VATOM SYM,\LOCN,TV,A,B + VECTGO + LOCN==. + TFIX,,MUDDLE + PROGVN + 0 + A==<<<&77>+40>_29.> + B==<&77> + IFN B,A==A+<_22.> + B==<&77> + IFN B,A==A+<_15.> + B==<&77> + IFN B,A==A+<_8.> + B==<&77> + IFN B,A==A+<_1.> + A + IFN ,<+40>_29. + 400000+SATOM,, + .-LOCN+1,,0 + TV==LOCN-.+2,,LOCN + ADDTV TATOM,TV,0 + VECRET + TERMIN + +;VATOM .FNAM1 ;"HACK REMOVED FOR EFFICIENCY" + + +;MACRO TO REMMVE SYMBOLS OF THE FORM "GXXXXX" + +DEFINE GEXPUN \SYM + NN==7 + TOTAL==0 + NUMGEN \ + RADIX 10. + .GSSET 0 + REPEAT TOTAL,XXP + RADIX 8 +TERMIN + +DEFINE XXP \A + EXPUNGE A + TERMIN + + +DEFINE ..LOC NEW,OLD + .LIFS .LPUR"+.LIMPU" + OLD!"==$." + LOC NEW!" + .ELDC + .LIFS -.LPUR" + LOC $." + .ELDC + .LIFS -.LIMPU + LOC $." + .ELDC + TERMIN + + +; PURE - MACRO TO SWITCH LOADING TO PURE CORE. + +DEFINE PURE + IFE PURITY-1, ..LOC .LPUR,.LIMPU + PURITY==0 + TERMIN + +; IMPURE - MACRO TO SWITCH LOADING TO IMPURE CORE. + +DEFINE IMPURE + IFE PURITY, ..LOC .LIMPU,.LPUR + PURITY==1 + TERMIN +] +PURITY==0 +; BLOCK MACRO + +DEFINE SPBLOK N + OFFSET 0 + LOC .+N + OFFSET OFFS + TERMIN + diff --git a//readch.215 b//readch.215 new file mode 100644 index 0000000..174dea1 --- /dev/null +++ b//readch.215 @@ -0,0 +1,1410 @@ +TITLE READCH TELETYPE DEVICE HANDLER FOR MUDDLE + +RELOCATABLE + +.INSRT MUDDLE > + +SYSQ + +IF1,[ +IFE ITS,.INSRT STENEX > +] + +.GLOBAL BUFRIN,CHRCNT,SYSCHR,ECHO,BYTPTR,ERASCH,KILLCH,BRKCH,AGC,CHRWRD,W1CHAR,GWB +.GLOBAL IOIN2,READC,WRONGC,BRFCHR,ESCAP,TTYOPE,MTYI,MTYO,IMTYO,INMTYO,NOTTY,DEMFLG,TTYOP2,OPSYS +.GLOBAL IBLOCK,PVSTOR,SPSTOR +.GLOBAL RRESET,TTICHN,TTOCHN,CHANNO,STATUS,BRFCH2,TTYBLK,TTYUNB,WAITNS +.GLOBAL EXBUFR,INCHAR,BYTDOP,BUFSTR,LSTCH,CHNCNT,DIRECT,IOINS,IBLOCK,INCONS +.GLOBAL BADCHN,WRONGD,CHNLOS,MODE1,MODE2,GMTYO,IDVAL,GETCHR,PAGLN,LINLN +.GLOBAL RDEVIC,DEMFLG,READ,MAKACT,CITOP,MPOPJ,CIMAGE,GTLPOS,LINPOS +.GLOBAL NTTYPE,CLRSTR + +TTYOUT==1 +TTYIN==2 + +; FLAGS CONCERNING TTY CHANNEL STATE + +N.ECHO==1 ; NO INPUT ECHO +N.CNTL==2 ; NO RUBOUT ^L ^D ECHO +N.IMED==4 ; ALL CHARS WAKE UP +N.IME1==10 ; SOON WILL BE N.IMED +CNTLPC==20 ; USE ^P CODE MODE IOT +N.ESC==40 + +; OPEN BLOCK MODE BITS +OUT==1 +IMAGEM==4 +ASCIIM==0 +UNIT==0 + +IFE ITS,[ + +DP%AG1==200000,,0 +DP%AG2==100000,,0 + +TC%MOV==400000,,0 +TC%CLR==40000,,0 + +.VTUP==3 +.VTMOV==7 +.VTCLR==15 +.VTCEL==17 +.VTBEC==21 +] + +; READC IS CALLED BY PUSHJ P,READC +; B POINTS TO A TTY FLAVOR CHANNEL +; ONE CHARACTER IS RETURNED IN A +; BECOMES INTERRUPTABLE IF NO CHARACTERS EXISTS + +; HERE TO ASK SYSTEM FOR SOME CHARACTERS + +INCHAR: IRP A,,[0,C,D,E] ;SAVE ACS + PUSH P,A + TERMIN + MOVE E,BUFRIN(B) ; GET AUX BUFFER + MOVE D,BYTPTR(E) + HLRE 0,E ;FIND END OF BUFFER + SUBM E,0 + ANDI 0,-1 ;ISOLATE RH + MOVE C,SYSCHR(E) ; GET FLAGS + +INCHR1: TRNE C,N.IMED+N.CNTL ; SKIP IF NOT IMMEDIATE + JRST DONE + LDB C,D ; GET PREV CHAR + CAMN C,ESCAP(E) ; SKIP IF NOT ESCAPED + JRST INCHR2 ; ESCAPED + CAMN A,BRFCH2(E) + JRST BRF + CAMN A,BRFCHR(E) ;BUFFER PRINT CHAR + JRST CLEARQ ;MAYBE CLEAR SCREEN + CAMN A,BRKCH(E) ;IS THIS A BREAK? + JRST DONE ;YES, DONE + CAMN A,ERASCH(E) ;ARE IS IT ERASE? + JRST ERASE ;YES, GO PROCESS + CAMN A,KILLCH(E) ;OR KILL + JRST KILL + +INCHR2: PUSHJ P,PUTCHR ;PUT ACHAR IN BUFFER +INCHR3: MOVEM D,BYTPTR(E) + JRST DONE1 + +DONE: SKIPL A ; IF JUST BUFFER FORCE, SKIP + PUSHJ P,PUTCHR ; STORE CHAR + MOVEI A,N.IMED ; TURN OFF IMEDIACY + ANDCAM A,SYSCHR(E) + MOVEM D,BYTPTR(E) + PUSH TP,$TCHAN ; SAVE CHANNEL + PUSH TP,B + MOVE A,CHRCNT(E) ; GET # OF CHARS + SETZM CHRCNT(E) + PUSH P,A + ADDI A,4 ; ROUND UP + IDIVI A,5 ; AND DOWN + PUSHJ P,IBLOCK ; GET CORE + HLRE A,B ; FIND D.W. + SUBM B,A + MOVSI 0,TCHRS+.VECT. ; GET TYPE + MOVEM 0,(A) ; AND STORE + MOVEI D,-1(B) ; COPY PNTR + MOVE C,(P) ; CHAR COUNT + HRLI D,010700 + HRLI C,TCHSTR + PUSH TP,$TUVEC + PUSH TP,B + PUSHJ P,INCONS ; CONS IT ON + MOVE C,-2(TP) ; GET CHAN BACK + MOVEI D,EXBUFR(C) ; POINT TO BUFFER LIST + HRRZ 0,(D) ; LAST? + JUMPE 0,.+3 + MOVE D,0 + JRST .-3 ; GO UNTIL END + HRRM B,(D) ; SPLICE + +; HERE TO BLT IN BUFFER + + MOVE D,BUFRIN(C) ; POINT TO COMPLETED BUFFER + HRRZ C,(TP) ; START OF NEW STRING + HRLI C,BYTPTR+1(D) ; 1ST WORD OF CHARS + MOVE E,[010700,,BYTPTR(E)] + EXCH E,BYTPTR(D) ; END OF STRING + MOVEI E,-BYTPTR(E) + ADD E,(TP) ; ADD TO START + BLT C,-1(E) + MOVE B,-2(TP) ; CHANNEL BACK + POP P,C + SOJG C,.+3 + MOVE E,BUFRIN(B) + SETZM BYTPTR+1(E) + SUB TP,[4,,4] ; FLUSH JUNK + PUSHJ P,TTYUNB ; UNBLOCK THIS TTY +DONE1: IRP A,,[E,D,C,0] + POP P,A + TERMIN + POPJ P, + +; HERE TO ERASE A CHARACTER + +BARFC1: PUSHJ P,RUBALT ; CAN WE RUBOUT AN ALTMODE? + JRST BARFCR ; NO, C.R. + JRST ERASAL + +ERASE: SKIPN CHRCNT(E) ;ANYTHING IN BUFFER? + JRST BARFC1 ;NO, MAYBE TYPE CR + +ERASAL: SOS CHRCNT(E) ;DELETE FROM COUNT + LDB A,D ;RE-GOBBLE LAST CHAR +IFN ITS,[ + LDB C,[600,,STATUS(B)] ; CHECK FOR DISPLAY + CAIE C,2 ; SKIP IF IT IS +] +IFE ITS,[ + HLRE C,STATUS(B) ; CONTAINS RESULT OF GTTYP + SKIPN DELSTR(C) ; INTERESTING DELETION METHOD? +] + JUMPGE C,TYPCHR ; DELETE BY ECHOING DELETED CHAR + SKIPN ECHO(E) ; SKIP IF ECHOABLE + JRST NECHO + PUSHJ P,CHRTYP ; FOUND OUT DISPLAY BEHAVIOR + SKIPGE C,FIXIM2(C) ; METHOD OF FLUSHING THIS CHARACTER + JRST (C) ; DISPATCH TO FUNNY ONES + +NOTFUN: PUSHJ P,DELCHR ; DELETE ONE CHARACTER + SOJG C,.-1 ; AND LOOP UNTIL GOT THEM ALL + +; REJOINS HERE TO UPDATE BUFFER POINTER, ETC. +NECHO: ADD D,[70000,,0] ;DECREMENT BYTE POINTER + JUMPGE D,INCHR3 ;AND GO ON, UNLESS BYTE POINTER LOST + SUB D,[430000,,1] ;FIX UP BYTE POINTER + JRST INCHR3 + +; RUB OUT A CHARACTER BY ECHOING IT (NON-DISPLAYS) +TYPCHR: SKIPE C,ECHO(E) + XCT C + JRST NECHO + +; SPECIAL HACKS FOR RUBBING OUT ON DISPLAYS + +; RUB OUT A LINE FEED +LFKILL: PUSHJ P,LNSTRV + JRST NECHO + +LNSTRV: PUSH P,0 ; STORE USEFUL DATA +IFN ITS,[ + TLO 0,CNTLPC ; SWITCH ON TEMPORARY ^P MODE + MOVEI A,20 ; ^P + XCT ECHO(E) + MOVEI A,"U ; U , MOVE UP ONE LINE + XCT ECHO(E) +] +IFE ITS,[ + PUSH P,B + MOVE B,TTOCHN+1 + HLRE A,STATUS(B) ; terminal type + JUMPGE A,UPCRF + MOVE A,1(B) ; DISPLAY IN VTS MODE + MOVEI B,.VTUP + VTSOP + JRST UPCXIT +UPCRF: PUSHJ P,GETPOS ; HERE FOR DISPLAY STUFF IN IMAGE MODE + SOS LINPOS(B) + PUSHJ P,SETPOS +UPCXIT: POP P,B +] + POP P,0 ; RESTORE USEFUL DATA + POPJ P, + +; RUB OUT A BACK SPACE +BSKILL: PUSHJ P,GETPOS ; CURRENT POSITION TO A + PUSHJ P,SETPOS ; POSITION DISPLAY CURSOR + PUSH P,0 ; STORE USEFUL DATA +IFN ITS,[ + TLO 0,CNTLPC ; SWITCH ON TEMPORARY ^P MODE + MOVEI A,20 ; ^P + XCT ECHO(E) + MOVEI A,"L ; L , DELETE TO END OF LINE + XCT ECHO(E) +] +IFE ITS,[ + HLRE A,STATUS(B) + JUMPGE A,CLECRF + PUSH P,B + MOVE A,1(B) + MOVEI B,.VTCEL + VTSOP + POP P,B + JRST CLEXIT + +CLECRF: MOVEI 0,EOLSTR(A) + PUSHJ P,STBOUT +] +CLEXIT: POP P,0 ; RESTORE USEFUL DATA + JRST NECHO + +; RUB OUT A TAB +TBKILL: PUSHJ P,GETPOS + ANDI A,7 + SUBI A,10 ; A -NUMBER OF DELS TO DO + PUSH P,A + PUSHJ P,DELCHR + AOSE (P) + JRST .-2 + SUB P,[1,,1] + JRST NECHO + +; ROUTINE TO DEL CHAR ON DISPLAY +DELCHR: PUSH P,0 ; STORE USEFUL DATA +IFN ITS,[ + TLO 0,CNTLPC ; SWITCH ON TEMPORARY ^P MODE + MOVEI A,20 + XCT ECHO(E) + MOVEI A,"X + XCT ECHO(E) +] +IFE ITS,[ + HLRE A,STATUS(B) + JUMPGE A,DELCRF + PUSH P,B + MOVE A,1(B) + MOVEI B,.VTBEC ;BACKSPACE AND ERASE + VTSOP + POP P,B + JRST DELXIT +DELCRF: MOVEI 0,DELSTR(A) + PUSHJ P,STBOUT +] +DELXIT: POP P,0 ;RESTORE USEFUL DATA + POPJ P, + +; DELETE FOUR-CHARACTER LOSSAGES +FOURQ: PUSH P,CNOTFU +FOURQ2: MOVEI C,2 ; FOR ^Z AND ^_ + CAMN B,TTICHN+1 ; SKIP IF NOT CONSOLE TTY + MOVEI C,4 +CNOTFU: POPJ P,NOTFUN + +; HERE IF KILLING A C.R., RE-POSITION CURSOR +CRKILL: PUSHJ P,GETPOS ; COMPUTE LINE POS + PUSHJ P,SETPOS + JRST NECHO + +; HERE TO SET CURRENT CURSOR POSITION, USUALLY TO END OF LINE +; A/ POSITION TO GO TO +SETPOS: PUSH P,0 ; STORE USEFUL DATA +IFN ITS,[ + TLO 0,CNTLPC ; SWITCH ON TEMPORARY ^P MODE + PUSH P,A ; SAVE POS + MOVEI A,20 + XCT ECHO(E) + MOVEI A,"H + XCT ECHO(E) + POP P,A + ADDI A,10 ; MINIMUM CURSOR POS + XCT ECHO(E) ; HORIZ POSIT AT END OF LINE +] +IFE ITS,[ + HLRE 0,STATUS(B) + JUMPGE ABPCRF + + PUSH P,B ; VTS ABSOLUTE POSITIONING + PUSH P,C + PUSH P,A + PUSHJ P,GTLPOS + HRL C,A ; LINE NUMBER + POP P,A + HRR C,A ; COLUMN NUMBER + MOVE A,1(B) + MOVEI B,.VTMOV + HRLI B,(DP%AG1+DP%AG2) + VTSOP + POP P,C + POP P,B + JRST ABPXIT + +ABPCRF: ADD 0,[SETZ POSTAB] + XCT @0 ; ROUTINES FOR ABSOLUTE POSITIONING (UGH) +] +ABPXIT: POP P,0 ; RESTORE USEFUL DATA + POPJ P, + +; HERE TO CALCULATE CURRENT CURSOR POSITION +; RETURNS A/ CURSOR POS (CORRESPONDS TO EOL, TOO) +GETPOS: PUSH P,0 + MOVEI 0,0 ; COUNT OF CHARACTER POSITIONS + PUSH P,[010700,,BYTPTR(E)] ; POINT TO BUFFER + PUSH P,CHRCNT(E) ; NUMBER THEREOF + +GETPO1: SOSGE (P) ; COUNT DOWN + JRST GETPO2 + ILDB A,-1(P) ; CHAR FROM BUFFER + CAIN A,15 ; SKIP IF NOT CR + MOVEI 0,0 ; C.R., RESET COUNT + PUSHJ P,CHRTYP ; GET TYPE + XCT FIXIM3(C) ; GET FIXED COUNT + ADD 0,C + JRST GETPO1 + +GETPO2: MOVE A,0 ; RET COUNT + MOVE 0,-2(P) ; RESTORE AC 0 + SUB P,[3,,3] + POPJ P, + +; FIGURE OUT HOW MANY CHARACTER POSITIONS A CHARACTER TAKES +CHRTYP: MOVEI C,0 ; NUMBER OF FLUSHEES + CAILE A,37 ; SKIP IF CONTROL CHAR + POPJ P, + PUSH TP,$TCHAN + PUSH TP,B ; SAVE CHAN + IDIVI A,12. ; FIND SPECIAL HACKS + MOVE A,FIXIML(A) ; GET CONT WORD + IMULI B,3 + ROTC A,3(B) ; GET CODE IN B + ANDI B,7 + MOVEI C,(B) + MOVE B,(TP) ; RESTORE CHAN + SUB TP,[2,,2] + POPJ P, + +; TABLE OF HOW MANY OR HOW TO FIND OUT +FIXIM2: 1 + 2 + SETZ FOURQ + SETZ CRKILL + SETZ LFKILL + SETZ BSKILL + SETZ TBKILL + +; TABLE OF WHAT TO ADD TO HPOS ON ENCOUNTERING CHARACTER +FIXIM3: MOVEI C,1 + MOVEI C,2 + PUSHJ P,FOURQ2 + MOVEI C,0 + MOVEI C,0 + MOVNI C,1 + PUSHJ P,CNTTAB + +; HORRIBLE KLUDGE TO COUNT SPACES FOR A TAB +CNTTAB: ANDCMI 0,7 ; GET COUNT INCUDING TAB HACK + ADDI 0,10 + MOVEI C,0 + POPJ P, + +; TYPE TABLE FOR EACH CONTROL CHARACTER +FIXIML: 111111,,115641 ; CNTL @ABCDE,,FGHIJK + 131111,,111111 ; LMNOPQ,,RSTUVW + 112011,,120000 ; XYZ LBRAK \ RBRAK,,^ _ + +; HERE TO KILL THE WHOLE BUFFER + +KILL: PUSHJ P,RUBALT ; COULD WE RUB OUT ALT MODE + JFCL + CLEARM CHRCNT(E) ;NONE LEFT NOW + MOVE D,[010700,,BYTPTR(E)] ;RESET POINTER + +BARFCR: +IFN ITS,[ + MOVE A,ERASCH(E) ;GET THE ERASE CHAR + CAIN A,177 ;IS IT RUBOUT? +] + PUSHJ P,CRLF1 ; PRINT CR-LF + JRST INCHR3 + +; SKIP IF CAN RUB OUT AN ALTMODE +RUBALT: PUSH TP,$TCHAN + PUSH TP,B + HRRZ A,FSAV(TB) ; ARE WE IN READ ? + CAIE A,READ + JRST RUBAL1 + MOVEI A,(TP) + SUBI A,(TB) +IFN ITS,CAIG A,53 ; SOMEWHAT HEURISTIC (WATCH OUT IN NEW VERSIONS!!!!!!) +IFE ITS,CAIG A,17 + JRST RUBAL1 + HRRZ A,BUFSTR-1(B) ; IS BUFFER OF SAME RUN OUT? + JUMPN A,RUBAL1 ; NO + MOVE B,IMQUOTE INCHAN + PUSHJ P,IDVAL ; REALLY CHECK IT OUT + MOVE C,(TP) + CAME C,B + JRST RUBAL1 + MOVE A,BUFSTR-1(B) + MOVE B,BUFSTR(B) + PUSHJ P,CITOP + ANDI A,-1 + MOVE D,[10700,,BYTPTR(E)] + MOVE E,(TP) + MOVE E,BUFRIN(E) + MOVEM A,CHRCNT(E) +; CHECK WINNAGE OF BUFFER + ILDB 0,D + ILDB C,B + CAIE 0,(C) + JRST RUBAL1 + SOJG A,.-4 + MOVE B,(TP) + MOVEM D,BYTPTR(E) + MOVE A,[JRST RETREA] + MOVEM A,WAITNS(B) + AOS (P) + SUB TP,[2,,2] + POPJ P, + +RUBAL1: MOVE B,(TP) + MOVE D,[010700,,BYTPTR(E)] + SETZM CHRCNT(E) + SUB TP,[2,,2] + POPJ P, + +RETREA: PUSHJ P,MAKACT + HRLI A,TFRAME + PUSH TP,A + PUSH TP,B + MCALL 1,RETRY + JRST TTYBLK + +; HERE TO CLEAR SCREEN AND RETYPE BUFFER + +CLEARQ: +IFN ITS,[ + MOVE A,STATUS(B) ; FIGURE OUT CONSOLE TYPE + ANDI A,77 + CAIN A,2 ; DISPLAY? +] +IFE ITS,[ + HLRE A,STATUS(B) + SKIPE CLRSTR(A) ; TRY IT ONLY ON DISPLAYS +] + PUSHJ P,CLR ; CLEAR SCREEN + +; HERE TO RETYPE BUFFER + +BRF: MOVE C,[010700,,BYTPTR(E)] ;POINT TO START OF BUFFER + SKIPN ECHO(E) ;ANY ECHO INS? + JRST NECHO +IFE ITS,PUSH P,B + MOVE B,TTOCHN+1 + PUSHJ P,CRLF2 +IFE ITS,AOS LINPOS(B) + PUSH P,CHRCNT(E) +BRF1: SOSGE (P) + JRST DECHO + ILDB A,C ;GOBBLE CHAR + XCT ECHO(E) ;ECHO IT +IFE ITS,[ + CAIN A,12 + AOS LINPOS(B) +] + JRST BRF1 ;DO FOR ENTIRE BUFFER + +DECHO: SUB P,[1,,1] +IFE ITS,POP P,B + JRST INCHR3 + +; ROUTINE TO CRLF ON ANY TTY + +CRLF1: SKIPN ECHO(E) + POPJ P, ; NO ECHO INS +CRLF2: MOVEI A,15 + XCT ECHO(E) + MOVEI A,12 + XCT ECHO(E) + POPJ P, + +; CLEAR SCREEN +CLR: SKIPN C,ECHO(E) ;ONLY IF INS EXISTS + POPJ P, + PUSH P,0 +IFN ITS,[ + TLO 0,CNTLPC ;SWITCH ON TEMPORARY ^P MODE + MOVEI A,20 ;ERASE SCREEN + XCT C + MOVEI A,103 + XCT C +] +IFE ITS,[ + JUMPGE A,CLRCRF + PUSH P,B + MOVE A,1(B) + MOVEI B,.VTCLR + VTSOP + POP P,B + JRST CLRXIT + +CLRCRF: MOVEI 0,CLRSTR(A) + PUSHJ P,STBOUT + PUSH P,B + MOVE B,TTOCHN+1 + SETZM LINPOS(B) + POP P,B +] +CLRXIT: POP P,0 ;RESTORE USEFUL DATA + POPJ P, + +IFE ITS,[ + +STBOUT: PUSH P,B + SKIPE IMAGFL + JRST STBOU1 + MOVE A,1(B) + HRRZ B,STATUS(B) + TRZ B,300 + SFMOD +STBOU1: HRLI 0,440700 + ILDB A,0 + JUMPE A,STBOUX + PBOUT + JRST .-3 + +STBOUX: SKIPE IMAGFL + JRST STBOU2 + MOVE B,(P) + MOVE A,1(B) + HRRZ B,STATUS(B) + SFMOD +STBOU2: POP P,B + POPJ P, + +; SPECIAL CASE GOODIES FOR DISPLAY TERMINALS + +NTTYPE==40 ; MAX TERMINAL TYPES SUPPORTED + + +; HOW TO CLEAR SCREENS ON TOPS-20/TENEX +CLRSTR: 0 + 0 + 0 + 0 + ASCII // ; ITS SOFTWARE + ASCII // ; DATAMEDIA + ASCII /HJ/ ; HP2640 + 0 + 0 + 0 + 0 + ASCII /HJ/ ; VT50 + 0 + ASCII /(/ ; GT40 + 0 + ASCII /HJ/ ; VT52 + 0 + 0 + ASCII /HJ/ ; VT100 + ASCII /HJ/ ; TELERAY + ASCII /HJ/ ; H19 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 +IFN <.-CLRSTR>-NTTYPE,PRINTC /ERROR -- CLEAR SCREEN TABLE LOSES +/ + +; HOW TO RUB OUT ON VARIOUS TERMINALS +DELSTR: 0 + 0 + 0 + 0 + ASCII / / ; ITS SOFTWARE DISPLAY + 0 + ASCII /DK/ ; HP2640 + 0 + 0 + 0 + 0 + ASCII /DK/ ; VT50 + 0 + 0 + 0 + ASCII /DK/ ; VT52 + 0 + 0 + ASCII /DK/ ; VT100 + ASCII /DK/ ; TELERAY + ASCII /DK/ ; H19 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 +IFN <.-DELSTR>-NTTYPE,PRINTC /ERROR -- DELETE TABLE LOSES +/ + +; CLEAR TO EOL +EOLSTR: 0 + 0 + 0 + 0 + ASCII // ; ITS SOFTWARE DISPLAY + 0 + ASCII /K/ ; HP2640 + 0 + 0 + 0 + 0 + ASCII /K/ ; VT50 + 0 + 0 + 0 + ASCII /K/ ; VT52 + 0 + 0 + ASCII /K/ ; VT100 + ASCII /K/ ; TELERAY + ASCII /K/ ; H19 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 +IFN <.-EOLSTR>-NTTYPE,PRINTC /ERROR -- END OF LINE TABLE LOSES +/ + +POSTAB: JFCL + JFCL + JFCL + JFCL + PUSHJ P,PSOFT ; ITS SOFTWARE + JFCL + PUSHJ P,PVT52 ; HP2640 + JFCL + JFCL + JFCL + JFCL + PUSHJ P,PVT52 ; VT50 + JFCL + JFCL + JFCL + PUSHJ P,PVT52 ; VT52 + JFCL + JFCL + PUSHJ P,PVT52 ; VT100 + PUSHJ P,PVT52 ; TELERAY + PUSHJ P,PVT52 ; H19 + JFCL + JFCL + JFCL + JFCL + JFCL + JFCL + JFCL + JFCL + JFCL + JFCL + JFCL +IFN <.-POSTAB>-NTTYPE,PRINTC /ERROR -- ABSOLUTE POSITION TABLE LOSES +/ + + + + +; ROUTINES FOR ABSOLUTE POSITIONING ON TENEX/TOPS-20 + +PSOFT: PUSH P,A + PUSHJ P,TNXIMG + MOVEI A,177 + XCT ECHO(E) + MOVEI A,21 + XCT ECHO(E) + PUSHJ P,GTLPOS + XCT ECHO(E) + POP P,A + XCT ECHO(E) + PUSHJ P,TNXASC + POPJ P, + +PVT52: PUSH P,A + PUSHJ P,TNXIMG + MOVEI A,33 + XCT ECHO(E) + MOVEI A,"Y + XCT ECHO(E) + PUSHJ P,GTLPOS + ADDI A,40 ; MUDDLE PAGES START AT 0, VT52 AT 1 + XCT ECHO(E) + POP P,A + ADDI A,40 ; DITTO COLUMNS + XCT ECHO(E) + PUSHJ P,TNXASC + POPJ P, + +TNXIMG: PUSH P,B + MOVE A,1(B) + MOVE B,STATUS(B) + TRZ B,300 + SFMOD + POP P,B + POPJ P, + +TNXASC: PUSH P,B + MOVE A,1(B) + HRRZ B,STATUS(B) + SFMOD + POP P,B + POPJ P, +] + +PUTCHR: AOS CHRCNT(E) ;COUNT THIS CHARACTER + IBP D ;BUMP BYTE POINTER +IFE ITS,[ + HRRZ C,D + ADDI C,(E) + CAIG 0,(C) ;DONT SKIP IF BUFFER FULL +] +IFN ITS, CAIG 0,@D ;DONT SKIP IF BUFFER FULL + PUSHJ P,BUFULL ;GROW BUFFER +IFE ITS,[ + CAIN A,37 ; CHANGE EOL TO CRLF + MOVEI A,15 +] + DPB A,D ;CLOBBER BYTE POINTER IN + MOVE C,SYSCHR(E) ; FLAGS +IFE ITS,[ + POPJ P, +] +IFN ITS,[ + TRNN C,N.IMED+N.CNTL + CAIE A,15 ; IF CR INPUT, FOLLOW WITH LF + POPJ P, + MOVEI A,12 ; GET LF + JRST PUTCHR +] +; BUFFER FULL, GROW THE BUFFER + +BUFULL: MOVEM D,BYTPTR(E) + PUSH TP,$TCHAN ;SAVE B + PUSH TP,B + PUSH P,A ; SAVE CURRENT CHAR + HLRE A,BUFRIN(B) + MOVNS A + ADDI A,100 ; MAKE ONE LONGER + PUSHJ P,IBLOCK ; GET IT + MOVE A,(TP) ;RESTORE CHANNEL POINTER + SUB TP,[2,,2] ;AND REMOVE CRUFT + MOVE E,BUFRIN(A) ;GET AUX BUFFER POINTER + MOVEM B,BUFRIN(A) + HLRE 0,E ;RECOMPUTE 0 + MOVSI E,(E) + HRRI E,(B) ; POINT TO DEST + SUB B,0 + BLT E,(B) + MOVEI 0,100-2(B) + MOVE B,A + MOVE E,BUFRIN(B) + POP P,A + MOVE D,BYTPTR(E) + POPJ P, + +; SUBROUTINE TO FLUSH BUFFER + +RRESET: SETZM LSTCH(B) ; CLOBBER RE-USE CHAR + MOVE E,BUFRIN(B) ;GET AUX BUFFER + SETZM CHRCNT(E) + MOVEI D,N.IMED+N.IME1 + ANDCAM D,SYSCHR(E) + MOVE D,[010700,,BYTPTR(E)] ;RESET BYTE POINTER + MOVEM D,BYTPTR(E) + MOVE D,CHANNO(B) ;GOBBLE CHANNEL +IFN ITS,[ + SETZM CHNCNT(D) ; FLUSH COUNTERS + LSH D,23. ;POSITION + IOR D,[.RESET 0] + XCT D ;RESET ITS CHANNEL +] +IFE ITS,[ + MOVEI A,100 ; TTY IN JFN + CFIBF +] + SETZM EXBUFR(B) ; CLOBBER STAKED BUFFS + MOVEI C,BUFSTR-1(B) ; FIND D.W. + PUSHJ P,BYTDOP + SUBI A,2 + HRLI A,010700 + MOVEM A,BUFSTR(B) + HLLZS BUFSTR-1(B) + POPJ P, + +; SUBROUTINE TO ESTABLISH ECHO IOINS + +MFUNCTION ECHOPAIR,SUBR + + ENTRY 2 + + GETYP A,(AB) ;CHECK ARG TYPES + GETYP C,2(AB) + CAIN A,TCHAN ;IS A CHANNEL + CAIE C,TCHAN ;IS C ALSO + JRST WRONGT ;NO, ONE OF THEM LOSES + + MOVE A,1(AB) ;GET CHANNEL + PUSHJ P,TCHANC ; VERIFY TTY IN + MOVE D,3(AB) ;GET OTHER CHANNEL + HRRZ 0,-2(D) ; GET BITS + TRC 0,C.OPN+C.PRIN + TRNE 0,C.OPN+C.PRIN + JRST WRONGD + + MOVE B,BUFRIN(A) ;GET A'S AUX BUFFER +IFN ITS,[ + HRLZ C,CHANNO(D) ; GET CHANNEL + LSH C,5 + IOR C,[.IOT A] ; BUILD AN IOT + MOVEM C,ECHO(B) ;CLOBBER +] +CHANRT: MOVE A,(AB) + MOVE B,1(AB) ;RETURN 1ST ARG + JRST FINIS + +TCHANC: HRRZ 0,-2(A) ; GET BITS + TRC 0,C.OPN+C.READ + TRNE 0,C.OPN+C.READ + JRST BADCHN +IFN ITS,[ + LDB C,[600,,STATUS(A)] ;GET A CODE + CAILE C,2 ;MAKE SURE A TTY FLAVOR DEVICE + JRST WRONGC + POPJ P, +] +IFE ITS,[ + PUSH P,A + MOVE A,1(A) + DVCHR + LDB A,[221100,,B] ;DEVICE TYPE FIELD + CAIE A,12 ;TTY + CAIN A,13 ;PTY + SKIPA + JRST WRONGC ;NOT A TTY, HOPE WE DON'T GET HERE IN LISTEN + POP P,A + POPJ P, +] + +; TTY OPEN + +IFE ITS,[ +TTYOPEN: +TTYOP2: SKIPE DEMFLG + POPJ P, + MOVE C,TTOCHN+1 + HLLZS IOINS-1(C) + MOVEI A,-1 ; TERMINAL; STAYS HERE THROUGHOUT ROUTINE + MOVEI 2,175100 ; MAGIC BITS (SEE TENEX MANUAL) + SFMOD ; ZAP + RFMOD ; LETS FIND SCREEN SIZE + MOVEM B,STATUS(C) + LDB B,[220700,,B] ; GET PAGE WIDTH + JUMPG B,.+2 + MOVEI B,80. ; MUST BE VIRTUAL, SO MAKE IT 80. + MOVEM B,LINLN(C) + LDB B,[310700,,STATUS(C)] ; AND LENGTH + MOVEM B,PAGLN(C) + SKIPE OPSYS ; CHECK FOR TOPS-20 + JRST NONVTS ; ONLY TOPS-20 CAN HAVE VTS + RTCHR + ERJMP NONVTS ; NO RTCHR JSYS, HENCE NO VTS + TLNN B,(TC%MOV+TC%CLR) ; HAS MINIMAL CHARACTERISTICS? + JRST NONVTS ; NO GOOD ENOUGH FOR US + MOVNI B,1 ; TERMINAL TYPE -1 IS VTS DISPLAY + JRST HASVTS ; WINS + +NONVTS: PUSH P,C ; IDIOT GETTYP CLOBBERS C + GTTYP ; FIND TERMINAL TYPE + POP P,C +HASVTS: HRLM B,STATUS(C) ; USED TO FIGURE OUT DISPLAY STUFF + MOVE B,STATUS(C) + MOVE C,TTICHN+1 + MOVEM B,STATUS(C) ; SET UP INCHAN TOO + RFCOC ; GET CURRENT + AND B,[036377,,-1] ; CHANGE FOR ^@, ^A AND ^D (FOR NOW) + SFCOC ; AND RESUSE IT + + POPJ P, +] + +IFN ITS,[ +TTYOP2: .SUSET [.RTTY,,C] + SETZM NOTTY + JUMPL C,TTYNO ; DONT HAVE TTY + +TTYOPEN: + SKIPE NOTTY + POPJ P, + .CALL [SETZ + SIXBIT /OPEN/ + [1000,,TTYIN] + SETZ [[SIXBIT /TTY /]]] + JRST TTYNO + DOTCAL OPEN,[[1000,,TTYOUT],[[SIXBIT /TTY /]],[5000,,1]] + FATAL CANT OPEN TTY + DOTCAL TTYGET,[[1000,,TTYOUT],[2000,,0],[2000,,A],[2000,,B]] + FATAL .CALL FAILURE + DOTCAL TTYSET,[[1000,,TTYOUT],MODE1,MODE2,B] + FATAL .CALL FAILURE + +SETCHN: MOVE B,TTICHN+1 ;GET CHANNEL + MOVEI C,TTYIN ;GET ITS CHAN # + MOVEM C,CHANNO(B) + .STATUS TTYIN,STATUS(B) ;CLOBBER STATUS + + MOVE B,TTOCHN+1 ;GET OUT CHAN + MOVEI C,TTYOUT + MOVEM C,CHANNO(B) + .STATUS TTYOUT,STATUS(B) + SETZM IMAGFL ;RESET IMAGE MODE FLAG + HLLZS IOINS-1(B) + DOTCAL RSSIZE,[[1000,,TTYOUT],[2000,,C],[2000,,D]] + FATAL .CALL RSSIZE LOSSAGE + MOVEM C,PAGLN(B) + MOVEM D,LINLN(B) + POPJ P, + +; HERE IF TTY WONT OPEN + +TTYNO: SETOM NOTTY + POPJ P, +] + +GTLPOS: +IFN ITS,[ + DOTCAL RCPOS,[[CHANNO(B)],[2000,,A]] + JFCL + HLRZS A + POPJ P, +] +IFE ITS,[ + PUSH P,B + MOVE B,TTOCHN+1 + HLRE A,STATUS(B) + JUMPGE A,GETCRF + MOVE A,1(B) + RFPOS + HLRZ A,B + SKIPA +GETCRF: MOVE A,LINPOS(B) + POP P,B + POPJ P, +] + +MTYI: SKIPN DEMFLG ; SKIP IF DEMON + SKIPE NOTTY ; SKIP IF HAVE TTY + FATAL TRIED TO USE NON-EXISTANT TTY + +; TRY TO AVOID HANGING IN .IOT TO TTY + +IFN ITS,[ + DOTCAL IOT,[[1000,,TTYIN],[A],[5000,,1000]] + JFCL +] +IFE ITS,[ + +MTYI1: PBIN +] + POPJ P, + +INMTYO: ; BOTH ARE INTERRUPTABLE +MTYO: ENABLE + PUSHJ P,IMTYO + DISABLE + POPJ P, + +; NON-INTERRUPTABLE VERSION, FOR ECHO INSTRUCTION AND SUCHLIKE +IMTYO: SKIPE NOTTY + POPJ P, ; IGNORE, DONT HAVE TTY + +IFN ITS,[ + CAIN A,177 ;DONT OUTPUT A DELETE + POPJ P, + PUSH P,B + MOVEI B,0 ; SETUP CONTROL BITS + TLNE 0,CNTLPC ; SKIP IF ^P MODE SWITCH IS OFF + MOVEI B,%TJDIS ; SWITCH ON TEMPORARY ^P MODE + DOTCAL IOT,[[1000,,TTYOUT],[A],[4000,,B]] + JFCL + POP P,B +] +IFE ITS, PBOUT + POPJ P, + +; HERE FOR TYO TO ANY TTY FLAVOR DEVICE +IFN ITS,[ +GMTYO: PUSH P,0 +IFE ITS,[ + HRRZ 0,IOINS-1(B) ; GET FLAG + SKIPE 0 + PUSHJ P,REASCI ; RE-OPEN TTY +] + HRLZ 0,CHANNO(B) + ASH 0,5 + IOR 0,[.IOT A] + CAIE A,177 ; DONE OUTPUT A DELETE + XCT 0 + POP P,0 + POPJ P, + +REASCI: PUSH P,A + PUSH P,C +IFE ITS,[ + PUSH P,B + MOVE A,1(B) + RFMOD + TRO B,102 + SFMOD + STPAR + POP P,B ] + + POP P,C + POP P,A + HLLZS IOINS-1(B) + CAMN B,TTOCHN+1 + SETZM IMAGFL + POPJ P, +] + + +WRONGC: FATAL TTYECHO--NOT ON A TTY-TYPE CHANNEL + + + +; HERE TO HANDLE TTY BLOCKING AND UNBLOCKING + +TTYBLK: PUSH TP,$TCHAN + PUSH TP,B + PUSH P,0 + PUSH P,E ; SAVE SOME ACS +IFN ITS,[ + MOVE A,CHANNO(B) ; GET CHANNEL NUMBER + SOSG CHNCNT(A) ; ANY PENDING CHARS + JRST TTYBL1 + SETZM CHNCNT(A) + MOVEI 0,1 + LSH 0,(A) + .SUSET [.SIFPI,,0] ; SLAM AN INT ON +] +TTYBL1: MOVE C,BUFRIN(B) + MOVE A,SYSCHR(C) ; GET FLAGS + TRZ A,N.IMED + TRZE A,N.IME1 ; IF WILL BE + TRO A,N.IMED ; THE MAKE IT + MOVEM A,SYSCHR(C) +IFN ITS,[ + MOVE A,[.CALL TTYIOT] ; NON-BUSY WAIT (IF CHAR READ, LEAVE IN BUFFER + ; TO LET IT BE READ AT INTERRUPT LEVEL) + SKIPE NOTTY + MOVE A,[.SLEEP A,] +] +IFE ITS,[ + MOVE A,[PUSHJ P,TNXIN] +] + MOVEM A,WAITNS(B) + PUSH TP,$TCHSTR + PUSH TP,CHQUOTE BLOCKED + PUSH TP,$TPVP + PUSH TP,PVSTOR+1 + MCALL 2,INTERRUPT + MOVSI A,TCHAN + MOVE PVP,PVSTOR+1 + MOVEM A,BSTO(PVP) + MOVE B,(TP) + ENABLE +REBLK: MOVEI A,-1 ; IN CASE SLEEPING + XCT WAITNS(B) ; NOW WAIT + JFCL +IFE ITS, JRST .-3 +IFN ITS, JRST CHRSNR ; SNARF CHAR +REBLK1: DISABLE ; FALL THROUG=> UNBLOCKED + MOVE PVP,PVSTOR+1 + SETZM BSTO(PVP) + POP P,E + POP P,0 + MOVE B,(TP) + SUB TP,[2,,2] + POPJ P, +IFN ITS,[ +CHRSNR: SKIPN DEMFLG ; SKIP IF DEMON + SKIPE NOTTY ; TTY? + JRST REBLK ; NO, JUST RESET AND BLOCK + .SUSET [.SIFPI,,[1_]] + JRST REBLK ; AND GO BACK + +TTYIOT: SETZ + SIXBIT /IOT/ + 1000,,TTYIN + 0 + 405000,,20000 +] +; HERE TO UNBLOCK TTY + +TTYUNB: MOVE A,WAITNS(B) ; GET INS + CAMN A,[JRST REBLK1] + JRST TTYUN1 + MOVE A,[JRST REBLK1] ; LEAVE THE SLEEP + MOVEM A,WAITNS(B) + PUSH TP,$TCHAN + PUSH TP,B + PUSH TP,$TCHSTR + PUSH TP,CHQUOTE UNBLOCKED + PUSH TP,$TCHAN + PUSH TP,B + MCALL 2,INTERRUPT + MOVE B,(TP) ; RESTORE CHANNEL + SUB TP,[2,,2] +TTYUN1: POPJ P, + +IFE ITS,[ +; TENEX BASIC TTY I/O ROUTINE + +TNXIN: PUSHJ P,MTYI + DISABLE + PUSHJ P,INCHAR + ENABLE + POPJ P, +] +MFUNCTION TTYECHO,SUBR + + ENTRY 2 + + GETYP 0,(AB) + CAIE 0,TCHAN + JRST WTYP1 + MOVE A,1(AB) ; GET CHANNEL + PUSHJ P,TCHANC ; MAKE SURE IT IS TTY INPUT + MOVE E,BUFRIN(A) ; EXTRA INFO BUFFER +IFN ITS,[ + DOTCAL TTYGET,[CHANNO(A),[2000,,B],[2000,,C],[2000,,0]] + FATAL .CALL FAILURE +] +IFE ITS,[ + MOVEI A,100 ; TTY JFN + RFMOD ; MODE IN B + TRZ B,6000 ; TURN OFF ECHO +] + GETYP D,2(AB) ; ARG 2 + CAIE D,TFALSE ; SKIP IF WANT ECHO OFF + JRST ECHOON + +IFN ITS,[ + ANDCM B,[606060,,606060] + ANDCM C,[606060,,606060] + + DOTCAL TTYSET,[CHANNO(A),B,C,0] + FATAL .CALL FAILURE +] +IFE ITS,[ + SFMOD +] + + MOVEI B,N.ECHO+N.CNTL ; SET FLAGS + IORM B,SYSCHR(E) + + JRST CHANRT + +ECHOON: +IFN ITS,[ + IOR B,[202020,,202020] + IOR C,[202020,,200020] + DOTCAL TTYSET,[CHANNO(A),B,C,0] + FATAL .CALL FAILURE +] +IFE ITS,[ + TRO B,4000 + SFMOD +] + MOVEI A,N.ECHO+N.CNTL + ANDCAM A,SYSCHR(E) + JRST CHANRT + + + +; USER SUBR FOR INSTANT CHARACTER SNARFING + +MFUNCTION UTYI,SUBR,TYI + + ENTRY + CAMGE AB,[-3,,] + JRST TMA + MOVE A,(AB) + MOVE B,1(AB) + JUMPL AB,.+3 + MOVE B,IMQUOTE INCHAN + PUSHJ P,IDVAL ; USE INCHAN + GETYP 0,A ; GET TYPE + CAIE 0,TCHAN + JRST WTYP1 +IFN ITS,[ + LDB 0,[600,,STATUS(B)] + CAILE 0,2 + JRST WTYP1 + SKIPN A,LSTCH(B) ; ANY READ AHEAD CHAR + JRST UTYI1 ; NO, SKIP + ANDI A,-1 + SETZM LSTCH(B) + TLZN A,400000 ; ! HACK? + JRST UTYI2 ; NO, OK + HRRM A,LSTCH(B) ; YES SAVE + MOVEI A,"! ; RET AN ! + JRST UTYI2 + +UTYI1: MOVE 0,IOINS(B) + CAME 0,[PUSHJ P,GETCHR] + JRST WTYP1 + PUSH TP,$TCHAN + PUSH TP,B + MOVE C,BUFRIN(B) + MOVEI D,N.IME1+N.IMED + IORM D,SYSCHR(C) ; CLOBBER IT IN + DOTCAL TTYGET,[CHANNO(B),[2000,,A],[2000,,D],[2000,,0]] + FATAL .CALL FAILURE + PUSH P,A + PUSH P,0 + PUSH P,D ; SAVE THEM + IOR D,[030303,,030303] + IOR A,[030303,,030303] + DOTCAL TTYSET,[CHANNO(B),A,D,0] + FATAL .CALL FAILURE + MOVNI A,1 + SKIPE CHRCNT(C) ; ALREADY SOME? + PUSHJ P,INCHAR + MOVE C,BUFRIN(B) ; GET BUFFER BACK + MOVEI D,N.IME1 + IORM D,SYSCHR(C) + PUSHJ P,GETCHR + MOVE B,1(TB) + MOVE C,BUFRIN(B) + MOVEI D,N.IME1+N.IMED + ANDCAM D,SYSCHR(C) + POP P,D + POP P,0 + POP P,C + DOTCAL TTYSET,[CHANNO(B),C,D,0] + FATAL .CALL FAILURE +UTYI2: MOVEI B,(A) ] +IFE ITS,[ + MOVE A,1(B) ;GET JFN FOR INPUT + ENABLE + BIN ;SNARF A CHARACTER + DISABLE +] + MOVSI A,TCHRS + JRST FINIS + +MFUNCTION IMAGE,SUBR + ENTRY + JUMPGE AB,TFA ; 1 OR 2 ARGS NEEDED + GETYP A,(AB) ;GET THE TYPE OF THE ARG + CAIE A,TFIX ;CHECK IT FOR CORRECT TYPE + JRST WTYP1 ;WAS WRONG...ERROR EXIT + HLRZ 0,AB + CAIL 0,-2 + JRST USEOTC + CAIE 0,-4 + JRST TMA + GETYP 0,2(AB) + CAIE 0,TCHAN + JRST WTYP2 + MOVE B,3(AB) ; GET CHANNEL +IMAGE1: MOVE A,1(AB) + PUSHJ P,CIMAGE + JRST FINIS + +CIMAGE: SUBM M,(P) +IFN ITS,[ + LDB 0,[600,,STATUS(B)] + CAILE 0,2 ; MUST BE TTY + JRST IMAGFO + MOVE 0,IOINS(B) + CAMN 0,[PUSHJ P,MTYO] + JRST .+3 + CAME 0,[PUSHJ P,GMTYO] + JRST WRONGD ] +IFE ITS,[ + MOVE 0,CHANNO(B) ; SEE IF TTY + CAIE 0,101 + JRST IMAGFO +] + +IFN ITS,[ + DOTCAL IOT,[[5000,,2000],[CHANNO(B)],[A]] + JFCL + MOVE B,A +] +IFE ITS,[ + SKIPE IMAGFL + JRST IMGOK + + PUSH P,A + PUSH P,B + MOVSI A,1 + HRROI B,[ASCIZ /TTY:/] + GTJFN + HALTF + MOVE B,[074000,,102000] + OPENF + HALTF + HRRZM A,IMAGFL + POP P,B + POP P,A +IMGOK: MOVE B,IMAGFL + EXCH A,B + BOUT +] + +IMGEXT: MOVSI A,TFIX + JRST MPOPJ + + +IMAGFO: PUSH TP,$TCHAN ;IMAGE OUTPUT FOR NON TTY + PUSH TP,B + PUSH P,A + HRRZ 0,-2(B) ; GET BITS + TRC 0,C.OPN+C.PRIN + TRNE 0,C.OPN+C.PRIN + JRST BADCHN + MOVE B,(TP) + PUSHJ P,GWB ; MAKE SURE CHANNEL HAS BUFFER + MOVE A,(P) ; GET THE CHARACTER TO DO + PUSHJ P,W1CHAR + POP P,B + MOVSI A,TFIX + SUB TP,[2,,2] + JRST MPOPJ + + +USEOTC: MOVSI A,TATOM + MOVE B,IMQUOTE OUTCHAN + PUSHJ P,IDVAL + GETYP 0,A + CAIE 0,TCHAN + MOVE B,TTOCHN+1 + MOVE A,1(B) + JRST IMAGE1 + +IFN ITS,[ +IMGBLK: OUT+IMAGEM+UNIT,,(SIXBIT /TTY/) + 0 + 0 +] + + +IMPURE +IMAGFL: 0 +PURE + + +END + \ No newline at end of file diff --git a//save.177 b//save.177 new file mode 100644 index 0000000..ce94b34 --- /dev/null +++ b//save.177 @@ -0,0 +1,799 @@ +TITLE SAVE AND RESTORE STATE OF A MUDDLE + +RELOCATABLE + +.INSRT DSK:MUDDLE > + +SYSQ + + +UNTAST==0 +IFE ITS,[ +IF1,[ +.INSRT STENEX > +EXPUNGE SAVE +] +] +.GLOBAL MOPEN,MIOT,MCLOSE,MUDSTR,SWAP,STRTO6,GCPDL,RGPRS,ADDNUL,GCSTOP,PHIBOT +.GLOBAL CHNL0,CHNL1,REOPN,AGC,SWAPIN,MASK1,MASK2,IPCBLS,DEMFLG,FSTART,CKVRS +.GLOBAL P.CORE,P.TOP,SGSNAM,%RUNAM,%RSNAM,%RJNAM,INTINT,CLOSAL,TTYOPE,PURBOT,CHKPGI +.GLOBAL NOTTY,PURCLN,6TOCHS,DISXTR,IDVAL1,N.CHNS,PMAPB,PURTOP,HITOP,FRETOP,FREMIN +.GLOBAL SQKIL,SFRK,GETJS,IJFNS,IJFNS1,MULTSG,MULTI,NOMULT,THIBOT +.GLOBAL MAPJFN,DIRCHN + +FME==1000,,-1 +FLS==1000,, +MFORK==400000 + +MFUNCTION FSAVE,SUBR + + ENTRY + + JRST SAVE1 + +MFUNCTION SAVE,SUBR + + ENTRY +SAVE1: PUSHJ P,SQKIL +IFE ITS,[ + SKIPE MULTSG + PUSHJ P,NOMULT +] + PUSH P,. + PUSH P,[0] ; GC OR NOT? +IFE ITS,[ + MOVE B,[400600,,] + MOVE C,[440000,,100000] +] + PUSHJ P,GTFNM ; GET THE FILE NAME ONTO P + JRST .+2 + JRST SAVEON + JUMPGE AB,TMA ; TOO MUCH STRING + GETYP 0,(AB) ; WHAT IS ARG + CAMGE AB,[-3,,0] ; NOT TOO MANY + JRST TMA + CAIN 0,TFALSE +IFN ITS, SETOM -6(P) ; GC FLAG +IFE ITS, SETOM (P) +SAVEON: +IFN ITS,[ + MOVSI A,7 ; IMAGE BLOCK OUT + MOVEM A,-4(P) ; DIRECTION + PUSH P,A + PUSH P,-4(P) ; DEVICE + PUSH P,[SIXBIT /_MUDS_/] + PUSH P,[SIXBIT />/] + PUSH P,-4(P) ; SNAME + MOVEI A,-4(P) ; POINT TO BLOCK + PUSHJ P,MOPEN ; ATTEMPT TO OPEN + JRST CANTOP + SUB P,[5,,5] ; FLUSH OPEN BLOCK + PUSH P,-6(P) ; GC FLAG TO TOP OF STACK (-4 --> -6 TAA) +] + EXCH A,(P) ; CHAN TO STACK GC TO A + JUMPL A,NOGC + PUSH TP,$TFIX ; CAUSE HAIRY GC TO OCCUR + PUSH TP,[0] + PUSH TP,$TATOM + PUSH TP,IMQUOTE T + MCALL 2,GC +NOGC: PUSHJ P,PURCLN + +; NOW GET VERSION OF MUDDLE FOR COMPARISON + + MOVE A,MUDSTR+2 ; GET # + MOVEI B,177 ; CHANGE ALL RUBOUT CHARACTERS + MOVEI C,40 ; ----- TO SPACES + PUSHJ P,HACKV + + PUSHJ P,WRDOUT + MOVE A,P.TOP ; GET TOP OF CORD + PUSHJ P,WRDOUT + MOVEI A,0 ; WRITE ZERO IF FAST +IFN ITS, SKIPE -8(P) ; -6 --> -8 TAA +IFE ITS, SKIPE -1(P) + PUSHJ P,WRDOUT + MOVE A,VECTOP ; CORE REQUIREMENTS FOR THIS SAVED MUDDLE + PUSHJ P,WRDOUT + +IFN ITS,[ + SETZB A,B ; FIRST, ALL INTS OFF + .SETM2 A, + +; IF FAST SAVE JUMP OFF HERE + + SKIPE -6(P) + JRST FSAVE1 + +] + +IFE ITS,[ + MOVEI A,400000 ; FOR THIS PROCESS + DIR ; TURN OFF INT SYSTEM + +; IF FAST, LEAVE HERE + + SKIPE -1(P) + JRST FSAVE1 + +; NOW DUMP OUT GC SPACE + +] +IFN ITS,[ + +DMPDN2: SETZB A,B ; SET UP RENAME WHILE OPEN ETC. + MOVE E,-1(P) + MOVE D,-2(P) + LDB C,[270400,,0] ; GET CHANNEL + .FDELE A ; RENAME IT + FATAL SAVE RENAME FAILED + XOR 0,[<.IOT A>#<.CLOSE>] ; CHANGE TO A CLOSE + XCT 0 + + MOVE A,MASK1 ; TURN INTS BACK ON + MOVE B,MASK2 + .SETM2 A, +] + +IFE ITS,[ + +DMPDN2: MOVE A,0 + CLOSF + FATAL CANT CLOSE SAVE FILE + CIS ; CLEAR IT SYSTEM + MOVEI A,400000 + EIR ; AND RE-ENABLE +] + +SDONE: MOVE A,$TCHSTR + MOVE B,CHQUOTE SAVED + JRST FINIS + +; SCAN FOR MANY OCCURENCES OF THE SAME THING + + +; HERE TO WRITE OUT FAST SAVE FILE + +FSAVE1: +IFN UNTAST,[ + PUSHJ P,PUCHK +] + MOVE A,PARTOP ; DONT WRITE OUT "HOLE" + ADDI A,1777 + ANDCMI A,1777 + MOVEI E,(A) + PUSHJ P,WRDOUT + MOVE 0,(P) ; CHANNEL TO 0 +IFN ITS,[ + ASH 0,23. ; TO AC FIELS + IOR 0,[.IOT A] + MOVEI A,5 ; START AT WORD 5 +] +IFE ITS,[ + MOVE A,[-,,E] + PUSH P,(A) + AOBJN A,.-1 + MOVE A,0 + MOVE B,P ; WRITE OUT P FOR WIINAGE + BOUT + MOVE B,[444400,,20] + MOVNI C,20-6 + SOUT ; MAKE PAGE BOUNDARIES WIN + MOVEI A,20 ; START AT 20 +] + MOVEI B,(E) ; PARTOP TO B + PUSHJ P,FOUT ; WRITE OUT UP TO PAIR TOP + PUSHJ P,PUROUT + SUB P,[1,,1] ; CLEAN OFF STACK + JRST DMPDN2 + +IFN ITS,[ +FOUT: MOVEI D,(A) ; SAVE START + SUB A,B ; COMPUTE LH OF IOT PNTR + MOVSI A,(A) + SKIPL A ; IF + MEANS GROSS CORE SIZE + MOVSI A,400000 ; USE BIGGEST + HRRI A,(D) + XCT 0 ; ZAP, OUT IT GOES + CAMGE A,B ; SKIP IF ALL WENT + JRST FOUT ; DO THE REST + POPJ P, ; GO CLOSE FILE +] +IFE ITS,[ +FOUT: MOVEI C,(A) + SUBI C,(B) ; # OF BYTES TP C + MOVEI B,(A) ; START TO B + HRLI B,444400 + MOVE A,0 + SOUT ; WRITE IT OUT + POPJ P, +] + + +; HERE TO ATTEMPT TO RESTORE A SAVED STATE + +MFUNCTION RESTORE,SUBR + + ENTRY + PUSHJ P,SQKIL +IFE ITS,[ + MOVE B,[100600,,] + MOVE C,[440000,,240000] +] + PUSHJ P,GTFNM + JRST TMA +IFN ITS,[ + MOVSI A,6 ; READ/IMAGE/BLOCK + MOVEM A,-4(P) + MOVEI A,-4(P) + PUSHJ P,MOPEN ; OPEN THE LOSER + JRST FNF + SUB P,[6,,6] ; REMOVE OPEN BLOCK + + PUSH P,A ; SAVE CHANNEL + PUSHJ P,SGSNAM ; SAVE SNAME IN SYSTEM +] +IFE ITS, PUSH P,A ; SAVE JFN + PUSHJ P,CKVRS ; CHECK THE VERSION NUMBER + +IFN ITS, MCALL 0,IPCOFF ; CLOSE ALL IPC CHANS + PUSHJ P,CLOSAL ; CLOSE CHANNELS +IFN ITS,[ + SETZB A,B ; KILL ALL POSSIBLE INTERRUPTION + .SETM2 A, + DOTCAL UNLOCK,[[1000,,-1]] + .VALUE ; UNLOCK LOCKS +] +IFE ITS,[ + MOVEI A,400000 ; DISABLE INTS + DIR ; INTS OFF + +; LOOP TO CLOSE ALL RANDOM JFNS + + MOVE E,[-JFNLNT,,JFNTBL] + +JFNLP: HRRZ A,@(E) + SKIPE A + CLOSF + JFCL + HLRZ A,@(E) + SKIPE A + CLOSF + JFCL + SETZM @(E) + AOBJN E,JFNLP + +] + PUSHJ P,PURCLN ; DONT KEEP PURE SHAREDNESS + + POP P,E +IFE ITS,[ + MOVEI C,0 + MOVNI A,1 + MOVE B,[MFORK,,1] + MOVEI D,THIBOT-1 + PMAP + ADDI B,1 + SOJG D,.-2 + SKIPLE A,SFRK ; IF WE HAVE AN INFERIOR, KILL IT + KFORK +] + MOVE A,E +FSTART: MOVE P,GCPDL + PUSH P,A +IFN ITS,[ + MOVE 0,[1-PHIBOT,,1] + DOTCAL CORBLK,[[FLS],[FME],0] + FATAL CANT FLUSH PURE PAGES +] + PUSHJ P,WRDIN ; GET P.TOP + ASH A,-10. + MOVE E,A + PUSHJ P,WRDIN ; READ A WORD (VECTOP) OR 0==>FAST I.E. MAP RESTORE + JUMPE A,FASTR + +IFE ITS,[ +FASTR1: MOVEI A,P-1 + MOVEI B,P-1-E + POP P,(A) + SUBI A,1 + SOJG B,.-2 +] + +IFN ITS,[ +FASTR1: +] +IFN ITS, MOVEM E,NOTTY ; SAVE TTY FLAG +IFE ITS,[ + MOVEM E,DEMFLG + PUSHJ P,GETJS + HRRZS IJFNS + SETZM IJFNS1 +] + PUSHJ P,PURCLN ; IN CASE RESTORED THING HAD PURE STUFF + PUSHJ P,INTINT ; USE NEW INTRRRUPTS + +IFN ITS,[ + .SUSET [.RSNAM,,A] + PUSH P,A +] + +; NOW CYCLE THROUGH CHANNELS + MOVE C,[-,,CHNL1] ; POINT TO REAL CHANNELS SLOTS + PUSH TP,$TVEC + PUSH TP,C + PUSH P,[N.CHNS] + +CHNLP: HRRE A,(C) ; SEE IF NEW VALUE + JUMPL A,NXTCHN + SKIPN B,1(C) ; GET CHANNEL + JRST NXTCHN + PUSHJ P,REOPN + PUSHJ P,CHNLOS + MOVE C,(TP) ; GET POINTER +NXTCHN: ADD C,[2,,2] ; AND BUMP + MOVEM C,(TP) + SOSE (P) + JRST CHNLP + + SKIPN C,CHNL0+1 ; ANY PSUEDO CHANNELS + JRST RDONE ; NO, JUST GO AWAY + MOVSI A,TLIST ; YES, REOPEN THEM + MOVEM A,(TP)-1 +CHNLP1: MOVEM C,(TP) ; SAVE POINTER + SKIPE B,(C)+1 ; GET CHANNEL + PUSHJ P,REOPN + PUSHJ P,CHNLO1 + MOVE C,(TP) ; GOBBLE POINTER + HRRZ C,(C) ; REST LIST OF PSUEDO CHANNELS + JUMPN C,CHNLP1 + +RDONE: MOVE A,VECTOP + CAMN A,P.TOP + JRST NOCOR + SETZM (A) + HRLS A + ADDI A,1 ; SET UP BLT POINTER + MOVE B,P.TOP + BLT A,-1(B) ; TO THE TOP OF THE WORLD +NOCOR: SUB TP,[2,,2] + SUB P,[1,,1] + PUSHJ P,TTYOPE +IFN ITS,[ + PUSHJ P,IPCBLS ;BLESS ALL THE IPC CHANNELS + PUSHJ P,SGSNAM ; GET SNAME + SKIPN A + MOVE A,(P) ; GET OLD SNAME + SUB P,[1,,1] + PUSHJ P,6TOCHS ; TO STRING +] +IFE ITS,[ + PUSHJ P,SGSNMQ ; SKIPS IF SNAME IS NON-NIL + PUSHJ P,%RSNAM ; ELSE GETS "REAL" SNAME + PUSH TP,A + PUSH TP,B + MCALL 1,SNAME + SETOM SFRK +] + PUSHJ P,%RUNAM + PUSHJ P,%RJNAM + +IFE ITS,[ + MOVEI A,400000 + MOVE B,[1,,ILLUUO] + MOVE C,[40,,UUOH] + SCVEC +] + MOVE A,$TCHSTR + MOVE B,CHQUOTE RESTORED + JRST FINIS + +IFE ITS,[ +;SKIPS IF THERE IS AN SNAME, RETURNING IT +SGSNMQ: MOVE B,IMQUOTE SNM + PUSHJ P,IDVAL1 + GETYP 0,A + CAIE 0,TCHSTR + JRST CPOPJ + HRRZ 0,A + JUMPE CPOPJ + JRST CPOPJ1 +] + +FASTR: +IFN ITS,[ + PUSHJ P,WRDIN + ADDI A,1777 + ANDCMI A,1777 ; ROUND AND TO PAGE BOUNDRY + ASH A,-10. ; TO PAGES + MOVNS A + MOVSI A,(A) ; TO PAGE AOBJN + MOVE C,A ; COPY OF POINTER + MOVE 0,NOTTY ; SAVE NOTTY FLAG AROUND + MOVE D,(P) ; CHANNEL + DOTCAL CORBLK,[[1000,,104000],[1000,,-1],A,D,C] + FATAL CORBLK ON RESTORE LOSSAGE + PUSHJ P,PURIN ; GET PURIFIED STRUCTURE + MOVSI A,(D) ; GET CHANNLEL BACK + ASH A,5 + MOVEI B,E ; WHERE TO STRAT IN FILE + IOR A,[.ACCESS B] + XCT A ; ACCESS TO RIGHT ACS + XOR A,[<.IOT B>#<.ACCESS B>] + MOVE B,[D-P-1,,E] + XCT A ; GET ACS + MOVE E,0 ; NO TTY FLAG BACK + XOR A,[<.IOT B>#<.CLOSE>] + XCT A + MOVE A,GCSTOP ; GET CORE AND FOOL P.CORE + ADDI A,1777 + ANDCMI A,1777 + EXCH A,P.TOP ; GET P.TOP + ASH A,-10. ; TO PAGES + PUSHJ P,P.CORE + PUSHJ P,NOCORE + JRST FASTR1 +] + +IFE ITS,[ +FASTR: POP P,A ; JFN TO A + BIN ; CORE TOP TO B + MOVE E,B ; SAVE + BIN ; PARTOP + MOVE D,B + BIN ; SAVED P + MOVE P,B + MOVE 0,DEMFLG ; SAVE DEMFLG FLAG AROUND + HRL E,C ; SAVE VECTOP + MOVSI A,(A) ; JFN TO LH + MOVSI B,400000 ; FOR ME + MOVSI C,120400 ; FLAGS + ASH D,-9. ; PAGES TO D + PMAP + ADDI A,1 + ADDI B,1 + SOJG D,.-3 + + PUSHJ P,PURIN + + HLRZS A + CLOSF + JFCL + MOVE E,0 ; DEMFLG TO E + JRST FASTR1 +] + +; HERE TO GROCK FILE NAME FROM ARGS + +GTFNM: +IFN ITS,[ + PUSH P,[0] ; DIRECTION + PUSH TP,$TPDL + PUSH TP,P + IRP A,,[DSK,MUDDLE,SAVE] + PUSH P,[SIXBIT /A/] + TERMIN + PUSHJ P,SGSNAM ; GET SNAME + PUSH P,A ; SAVE SNAME + JUMPGE AB,GTFNM1 + PUSHJ P,RGPRS ; PARSE THESE ARGS + JRST .+2 +GTFNM1: AOS -5(P) ; SKIP RETURN + MOVE A,(P) ; GET SNAME + .SUSET [.SSNAM,,A] + MOVE A,-5(P) ; GET RET ADDR + SUB TP,[2,,2] + JRST (A) + +; HERE TO OUTPUT 1 WORD + +WRDOUT: PUSH P,B + PUSH P,A + HRROI B,(P) ; POINT AT C(A) + MOVE A,-3(P) ; CHANNEL + PUSHJ P,MIOT ;WRITE IT +POPJB: POP P,A + POP P,B + POPJ P, + +; HERE TO READ 1 WORD +WRDIN==WRDOUT +] +IFE ITS,[ + PUSH P,C + PUSH P,B + MOVE B,IMQUOTE SNM + PUSHJ P,IDVAL1 + GETYP 0,A + CAIN 0,TUNBOU + JRST GTFNM0 + TRNN A,-1 ;ANY LENGTH? + PUSHJ P,%RSNAM ;IF IS "", GET REAL ONE + PUSHJ P,ADDNUL + SKIPA +GTFNM0: MOVEI B,0 + PUSH P,[377777,,377777] + PUSH P,[-1,,[ASCIZ /DSK/]] + PUSH P,B + PUSH P,[-1,,[ASCIZ /MUDDLE/]] + PUSH P,[-1,,[ASCIZ /SAVE/]] + PUSH P,[0] + PUSH P,[0] + PUSH P,[77] ; USE AN OBSCURE JFN IF POSSIBLE + MOVE A,(AB) + MOVE B,1(AB) + PUSHJ P,ADDNUL + MOVEI A,-10(P) + GTJFN + JRST FNF + SUB P,[9.,,9.] + POP P,B + OPENF + JRST FNF + ADD AB,[2,,2] + SKIPL AB +CPOPJ1: AOS (P) +CPOPJ: POPJ P, + +WRDIN: PUSH P,B + MOVE A,-2(P) ; JFN TO A + BIN + MOVE A,B + POP P,B + POPJ P, + +WRDOUT: PUSH P,B + MOVE B,-2(P) + EXCH A,B + BOUT + EXCH A,B + POP P,B + POPJ P, +] + + +;REPLACE ALL OCCURANCES OF CHARACTER (B) TO CHARACTER (C) IN A +HACKV: PUSH P,D + PUSH P,E + MOVE D,[440700,,A] + MOVEI E,5 +HACKV1: ILDB 0,D + CAIN 0,(B) ; MATCH ? + DPB C,D ; YES, CLOBBER + SOJG E,HACKV1 + POP P,E + POP P,D + POPJ P, + + +CANTOP: ERRUUO EQUOTE CANT-OPEN-OUTPUT-FILE + +FNF: ERRUUO EQUOTE FILE-NOT-FOUND + +BADVRS: ERRUUO EQUOTE MUDDLE-VERSIONS-DIFFER + + +CHNLO1: MOVE C,(TP) + SETZM 1(C) + JRST CHNLO2 + +CHNLOS: MOVE C,(TP) + MOVE B,1(C) + SETZM 1(B) ; CLOBBER CHANNEL # + SETZM 1(C) +CHNLO2: MOVEI B,[ASCIZ / +CHANNEL-NOT-RESTORED +/] + JRST MSGTYP" + +IFN ITS,[ +NOCORE: PUSH P,A + PUSH P,B + MOVEI B,[ASCIZ / +WAIT, CORE NOT YET HERE +/] + PUSHJ P,MSGTYP" + MOVE A,-1(P) ; RESTORE BLOCKS NEEDED + MOVEI B,1 + .SLEEP B, + PUSHJ P,P.CORE + JRST .-4 + MOVEI B,[ASCIZ / +CORE ARRIVED +/] + PUSHJ P,MSGTYP + POP P,B + POP P,A + POPJ P, +] +IFN UNTAST,[ +PUCHK: MOVEI E,HIBOT ; COMPUTE REAL START OF INTERPRETER + ASH E,-10. ; TO PAGES + MOVE A,PURTOP ; GET START TO POSSIBLE AREA CONTAINING P.S. + ASH A,-10. ; TO PAGES +PURCH1: PUSHJ P,CHKPGI ; SEE IF PAGE IS PURIFIED + JFCL + ADDI A,1 ; INCREMENT PAGE COUNTER + CAMG A,E ; SKIP IF DONE + JRST PURCH1 + POPJ P, +] + +; THESE ROUTINES ARE USED BY SAVE AND RESTORE TO GET PAGES OF PURE STRUCTURE +; INTO A SAVE FILE. + +PUROUT: MOVEI E,HIBOT ; COMPUTE REAL START OF INTERPRETER + ASH E,-10. ; TO PAGES + MOVE A,PURTOP ; GET START TO POSSIBLE AREA CONTAINING P.S. + ASH A,-10. ; TO PAGES +PUROU2: PUSHJ P,CHKPGI ; SEE IF PAGE IS PURIFIED + JRST INCPUT + PUSH P,A ; SAVE A + ASH A,10. ; TO WORDS + HRLI A,-2000 ; MAKE UP AOBJN PTR FOR IOT + MOVE B,-2(P) ; RESTORE CHN # +IFN ITS,[ + DOTCAL IOT,[B,A] + FATAL SAVE--IOT FAILED +] +IFE ITS,[ + PUSH P,C ; SAVE C + MOVE B,A ; SET UP BYTE POINTER + MOVE A,0 ; CHANNEL TO A + HRLI B,444400 ; SET UP BYTE POINTER + MOVNI C,2000 + SOUT ; OUT IT GOES + POP P,C +] + + POP P,A ; RESTORE PAGE # +INCPUT: ADDI A,1 ; INCREMENT PAGE COUNTER + CAMG A,E ; SKIP IF DONE + JRST PUROU2 + POPJ P, + + +IFN UNTAST,[ + +CHKPGJ: TDZA 0,0 +] +CHKPGI: +IFN UNTAST,[ + MOVEI 0,1 +] + PUSH P,A ; SAVE IT + IDIVI A,16. ; FIND ENTRY IN PMAP TABLE + MOVE C,PMAPB(A) ; GET WORD CONTAINING ENTRY + HRLZI D,400000 ; SET UP TEST WORD + IMULI B,2 + MOVNS B + LSH D,(B) ; GET TO CHECK PAIR + LSH D,-1 ; TO BIT INDICATING SAVE + TDON C,D ; SKIP IF PAGE CONTAINS P.S + JRST PUROU1 + POP P,A + AOS (P) ; SKIP ITS A WINNER +IFN UNTAST,[ + JUMPN 0,.+4 + LSH D,1 + TDNN C,D + AOS (P) +] POPJ P, ; EXIT +PUROU1: +IFN UNTAST,[ + JUMPE 0,CHKPG2 +IFN ITS,[ + PUSH P,A + DOTCAL CORTYP,[A,[2000,,A],[2000,,0]] + FATAL DOTCAL FAILURE + SKIPN A + MOVEI 0,0 + POP P,A + JUMPGE 0,CHKPG2 +] +IFE ITS,[ + PUSH P,A + PUSH P,B + LSH A,1 + HRLI A,400000 + RPACS + MOVE 0,B + POP P,B + POP P,A + TLC 0,150400 + TRNE 0,150400 + JRST CHKPG2 +] + LSH D,1 + TDO C,D + MOVEM C,PMAPB(A) + AOS -1(P) +CHKPG2:] + POP P,A + POPJ P, + + +; ROUTINE TO READ IN PURE STRUCTURE PAGES + +IFN ITS,[ +PURIN: PUSH P,D ; SAVE CHANNEL # + MOVEI E,HIBOT ; COMPUTE REAL START OF INTERPRETER + ASH E,-10. ; TO PAGES + MOVE A,PURTOP ; GET START TO POSSIBLE AREA CONTAINING P.S. + ASH A,-10. ; TO WORDS +PURIN1: +IFN UNTAST, PUSHJ P,CHKPGJ ; SEE IF PURE PAGE EXISTS +IFE UNTAST, PUSHJ P,CHKPGI ; SEE IF PURE PAGE EXISTS + JRST NXPGPN +IFN UNTAST,[ + SKIPA D,[200000] + MOVEI D,[104000] + MOVSI 0,(D) +] + PUSH P,A ; SAVE A + MOVE D,-1(P) ; RESTORE CHANNEL # + HRLI A,-1 ; SET UP AOBJN POINTER FOR DOTCAL +IFN UNTAST,[ + DOTCAL CORBLK,[0,[1000,,-1],A,D] +] +IFE UNTAST,[ + DOTCAL CORBLK,[[1000,,200000],[1000,,-1],A,D] +] + FATAL SAVE--CORBLK FAILED + POP P,A ; RESTORE A +NXPGPN: ADDI A,1 + CAMG A,E ; SKIP IF DONE + JRST PURIN1 + POP P,D ; RESTORE CHANNEL + POPJ P, +] +IFE ITS,[ +PURIN: PUSH P,A ; SAVE CHANNEL + MOVEI E,HIBOT ; TOP OF SCAN + ASH E,-10. + MOVE A,PURBOT ; BOTTOM OF SCAN + ASH A,-10. ; TO PAGES +PURIN1: PUSHJ P,CHKPGI ; SEE IF PAGE IS NEEDED + JRST NXTPGN + SKIPA C,[120000] + MOVEI C,120400 + PUSH P,A + MOVE B,A ; COPY TO B + ASH B,1 ; FOR TEXEX PAGES + HRLI B,MFORK ; SET UP ARGS TO PMAP + MOVSI C,(C) + MOVE A,-1(P) ; GET FILE POINTER + PMAP ; IN IT COMES + ADDI B,1 ; INCREMENT B + ADDI A,1 ; AND A + PMAP ; SECOND HALF OF ITS PAGE + ADDI A,1 + MOVEM A,-1(P) ; SAVE FILE PAGE + POP P,A +NXTPGN: ADDI A,1 + CAMG A,E ; SKIP IF DONE + JRST PURIN1 + POP P,A ; RESTOR CHANNEL + POPJ P, ;EXIT +] +CKVRS: PUSH P,-1(P) + PUSHJ P,WRDIN ; READ MUDDLE VERSION + MOVEI B,40 ; CHANGE ALL SPACES + MOVEI C,177 ; ----- TO RUBOUT CHARACTERS + PUSHJ P,HACKV + CAME A,MUDSTR+2 ; AGREE ? + JRST BADVRS + SUB P,[1,,1] ; POP OFF CHANNEL # + POPJ P, + +IFE ITS,[ +JFNTBL: SETZ IJFNS + SETZ IJFNS1 + SETZ MAPJFN + SETZ DIRCHN + +JFNLNT==.-JFNTBL +] +END + + \ No newline at end of file diff --git a//secagc.82 b//secagc.82 new file mode 100644 index 0000000..153a557 --- /dev/null +++ b//secagc.82 @@ -0,0 +1,2291 @@ + +TITLE SECAGC MUDDLE GARBAGE COLLECTOR FOR MULTI SECTIONS + +;SYSTEM WIDE DEFINITIONS GO HERE + +RELOCATABLE +.SYMTAB 3337. +GCST==$. +TOPGRO==111100 +BOTGRO==001100 +MFORK==400000 +.GLOBAL SHRRM,SHRLM,SMOVEM,SSETZM,SXBLT,SHLRZ +.GLOBAL RCL,VECTOP,GCSTOP,GCSBOT,FRETOP,GCSNEW,VECBOT,PARTOP,PARBOT,HITOP,HIBOT,GETPAG +.GLOBAL PDLBUF,PDLEX,PDLEXP,GCFLG,GCPDL,GETNUM,PARNEW,MOVPUR,RCLV,RCLVEC,PGCNT +.GLOBAL PGROW,TPGROW,MAINPR,%SLEEP,MSGTYP,PURTOP,PURBOT,STOSTR,GCSET,CKPUR +.GLOBAL MTYI,UPLO,FRMUNG,BYTDOP,GLOBSP,FREDIF,FREMIN,GCHAPN,INTFLG,FINAGC,NGCS,INQAGC +.GLOBAL SAT,TTOCHN,TYPVEC,ICONS,INCONS,IBLOCK,IEUVEC,IEVECTI,CELL2,MKTBS,RLENGC +.GLOBAL GIBLOK,REHASH,IBLOK1,IILIST,IIFORM,CIVEC,CIUVEC,CICONS,CPOPJ,RBLDM +.GLOBAL SPBASE,OUTRNG,CISTNG,CBYTES,%RUNAM,PURVEC,GCDOWN,N.CHNS,CHNL1,PLODR +.GLOBAL CAFRE,CAFRET,STOGC,GCHN,WNDP,FRNP,FRONT,%GCJOB,%SHWND,%INFMP,%GETIP,CHKPGI +.GLOBAL TD.PUT,TD.GET,TD.AGC,TD.AGC,TD.LNT,GLOTOP,UBIT,FLGSET,PURMNG,RPURBT,%IFMP2 +.GLOBAL CTIME,IMTYO,ILOC,NODES,GPURFL,GCDANG,GCHACK,LPUR,HITOP,BADCHN,IMPURX,PURCLN +.GLOBAL GCTIM,GCCAUS,GCCALL,IAAGC,LVLINC,STORIC,GVLINC,TYPIC,GCRSET,ACCESS,NOSHUF,SQUPNT +; GLOBALS ASSOCIATE WITH THE ASSOCIATION VECTOR + +.GLOBAL ASOVEC,ASOLNT,ITEM,INDIC,VAL,NWORDT,NODPNT,PNTRS,DSTORE,HASHTB +.GLOBAL CELL,BINDID,GCFLCH,TYPBOT,GLOBAS,TPBASE,NOWLVL,CURPLN,PVSTOR,SPSTOR +.GLOBAL ISECGC,SECLEN,RSECLE +.GLOBAL P.TOP,P.CORE,PMAPB,IGET,CIGTPR,ROOT,STBL,CAFREE,%MPIN1,%PURIF,%MPINX,GCHK10 +.GLOBAL %SAVRP,%RSTRP,LENGC,AGCLD,PAGEGC,REALGC +.GLOBAL %MPINT,%GBINT,%CLSMP,%CLSM1,PINIT,PGFIND,NPRFLG +.GLOBAL GCKNUM,CORTOP,GCHPN,INTAGC,WNDP,WNDBOT,BUFGC,WIND,GCDFLG,SAVM,AGC,GCSET + +.GLOBAL INBLOT,RSLENG + +NOPAGS==1 ; NUMBER OF WINDOWS +EOFBIT==1000 +PDLBUF=100 +NTPMAX==20000 ; NORMAL MAX TP SIZE +NTPGOO==4000 ; NORMAL GOOD TP +ETPMAX==2000 ; TPMAX IN AN EMERGENCY (I.E. GC RECALL) +ETPGOO==2000 ; GOOD TP IN EMERGENCY + + +GCHN==0 ; CHANNEL FOR FUNNNY INFERIOR +STATNO==19. ; # OF STATISTICS FOR BLOAT-STAT +STATGC==8. ; # OF GC-STATISTICS FOR BLOAT-STAT + + +LOC REALGC+RLENGC+RSLENG +OFFS==AGCLD-$. +OFFSET OFFS + +.INSRT MUDDLE > + +.INSRT STENEX > + +PGSZ==9. + +F==E+1 ; THESE 3 ACS OFTEN USED FOR XBLT +G==F+1 +FPTR==G+1 + +TYPNT==FPTR+1 ; SPECIAL AC USAGE DURING GC +EXTAC==TYPNT+1 ; ALSO SPECIAL DURING GC +LPVP==EXTAC+1 ; SPECIAL FOR GC, HOLDS POINTER TO PROCESS + ; CHAIN +.LIST.==400000 +.GLOBAL %FXUPS,%FXEND + + + +DEFINE DOMULT INS + FOOIT [INS] +TERMIN + +DEFINE FOOIT INS,\LCN + LCN==.-OFFS + INS + RMT [ + TBLADD LCN + ] +TERMIN + +RMT [%FXLIN==0 +] + +DEFINE TBLADD LCN,\FOO + FOO==.-OFFS + %FXLIN,,LCN + %FXLIN==FOO + %FXUPS==FOO + TERMIN + + +RMT [XBLT==123000,,%XXBLT +] + + + +ISECGC: + +;SET FLAG FOR INTERRUPT HANDLER + SETZB M,RCL ; CLEAR OUT RECYCLE LIST CELLS, AND RSUBR BASE + ; PNTR + EXCH P,GCPDL ; IN CASE CURRENT PDL LOSES + PUSH P,B + PUSH P,A + PUSH P,C ; SAVE C + +; HERE TO CLEAN UP ANY POSSIBLE PURENESS IN GC SPACE BEFORE COLLECTING + + MOVE A,NOWFRE + ADD A,GCSTOP ; ADJUSTMENT TO KEEP FREE REAL + SUB A,FRETOP + MOVEM A,NOWFRE + MOVE A,NOWP ; ADJUSTMENTS FOR STACKS + SUB A,CURP + MOVEM A,NOWP + MOVE A,NOWTP + SUB A,CURTP + MOVEM A,NOWTP + + MOVEI B,[ASCIZ /SGIN /] + SKIPE GCMONF ; MONITORING + PUSHJ P,MSGTYP +NOMON1: HRRZ C,(P) ; GET CAUSE OF GC INDICATOR + MOVE B,GCNO(C) ; ADD 1 TO COUNT OF GC'S CAUSED BY GIVEN REASON + ADDI B,1 + MOVEM B,GCNO(C) + MOVEM C,GCCAUS ; SAVE CAUSE OF GC + SKIPN GCMONF ; MONITORING + JRST NOMON2 + MOVE B,MSGGCT(C) ; GET CAUSE MESSAGE + PUSHJ P,MSGTYP +NOMON2: HLRZ C,(P) ; FIND OUT WHO CAUSED THE GC + MOVEM C,GCCALL ; SAVE CALLER OF GC + SKIPN GCMONF ; MONITORING + JRST NOMON3 + MOVE B,MSGGFT(C) + PUSHJ P,MSGTYP +NOMON3: ADJSP P,-1 ; POP OFF C + POP P,A + POP P,B + EXCH P,GCPDL + HLLZS SQUPNT ; FLUSH SQUOZE TABLE +INITGC: SETOM GCFLG + SETZM RCLV + +;SAVE AC'S + EXCH PVP,PVSTOR+1 + IRP AC,,[0,A,B,C,D,E,P,R,M,SP,TP,TB,AB,TVP,FRM] + MOVEM AC,AC!STO"+1(PVP) + TERMIN + + MOVE 0,PVSTOR+1 + MOVEM 0,PVPSTO+1(PVP) + MOVEM PVP,PVSTOR+1 + MOVE D,DSTORE + MOVEM D,DSTO(PVP) + JSP E,CKPUR ; CHECK FOR PURE RSUBR + +;SET UP E TO POINT TO TYPE VECTOR + + GETYP E,TYPVEC + CAIE E,TVEC + JRST AGCE1 + HRRZ TYPNT,TYPVEC+1 + HRLI TYPNT,400000+B ; LOCAL INDEX + +CHPDL: MOVE D,P ; SAVE FOR LATER +CORGET: MOVE P,[GCSEG,,MRKPDL] ; USE GCSEG FOR PDL + +;FENCE POST PDLS AND CHECK IF ANY SHOULD BE SHRUNK + + HRRZ A,TB ;POINT TO CURRENT FRAME IN PROCESS + PUSHJ P,FRMUNG ;AND MUNG IT + MOVE A,TP ;THEN TEMPORARY PDL + PUSHJ P,PDLCHK + MOVE PVP,PVSTOR+1 + MOVE A,PSTO+1(PVP) ;AND UNMARKED P STACK + PUSHJ P,PDLCHP + + ; FIRST CREATE INFERIOR TO HOLD NEW PAGES + +INFCRT: MOVE A,PARBOT ; GENERATE NEW PARBOT AND PARNEW + ADD A,PARNEW + ADDI A,1777 + ANDCMI A,1777 ; EVEN PAGE BOUNDARY + MOVEM A,NPARBO + MOVE FPTR,A + HRLI FPTR,GCSEG + +; NOW ZERO OUT NEW SPACE USING XBLT + +; DOMULT [SETZM (FPTR)] +; MOVEI 0,777777-1 +; SUBI 0,(FPTR) ; FROM VECBOT UP +; MOVE A,FPTR +; MOVE B,A +; ADDI B,1 +; DOMULT [XBLT 0,] + +; USE PMAP TO FLUSH GC SPACE PAGES + + MOVNI A,1 + MOVE B,[MFORK,,GCSEG_9.] + MOVE C,[SETZ 777] + PMAP + +;MARK PHASE: MARK ALL LISTS AND VECTORS +;POINTED TO WITH ONE BIT IN SIGN BIT +;START AT TRANSFER VECTOR +NOMAP: MOVE A,GLOBSP+1 ; GET GLOBSP TO SAVE + MOVEM A,GCGBSP + MOVE A,ASOVEC+1 ; ALSO SAVE FOR USE BY GC + MOVEM A,GCASOV + MOVE A,NODES+1 ; SAVE FOR ASSOCIATION UPDATE AND MOVEMENT + ; PHASE + MOVEM A,GCNOD + MOVE A,GLOTOP+1 ; GET GLOTOP FOR LOCR HACKS + MOVEM A,GLTOP + MOVE A,PURVEC+1 ; SAVE PURE VECTOR FOR GETPAG + MOVEM A,PURSVT + MOVE A,HASHTB+1 + MOVEM A,GCHSHT + + SETZ LPVP, ;CLEAR NUMBER OF PAIRS + MOVE 0,NGCS ; SEE IF NEED HAIR + SOSGE GCHAIR + MOVEM 0,GCHAIR ; RESUME COUNTING + MOVSI D,400000 ;SIGN BIT FOR MARKING + MOVE A,ASOVEC+1 ;MARK ASSOC. VECTOR NOW + PUSHJ P,PRMRK ; PRE-MARK + MOVE A,GLOBSP+1 + PUSHJ P,PRMRK + MOVE A,HASHTB+1 + PUSHJ P,PRMRK +OFFSET 0 + + MOVE A,IMQUOTE THIS-PROCESS + +OFFSET OFFS + + MOVEM A,GCATM + +; HAIR TO DO AUTO CHANNEL CLOSE + + MOVEI 0,N.CHNS-1 ; NUMBER OF CHANNELS + MOVEI A,CHNL1 ; 1ST SLOT + + SKIPE 1(A) ; NOW A CHANNEL? + SETZM (A) ; DON'T MARK AS CHANNELS + ADDI A,2 + SOJG 0,.-3 + + MOVEI C,PVSTOR + MOVEI B,TPVP + MOVE A,PVSTOR+1 ; MARK MAIN PROCES EVEN IF SWAPPED OUT + PUSHJ P,MARK + MOVEI C,MAINPR-1 + MOVEI B,TPVP + MOVE A,MAINPR ; MARK MAIN PROCES EVEN IF SWAPPED OUT + PUSHJ P,MARK + MOVEM A,MAINPR ; ADJUST PTR + +; ASSOCIATION AND VALUE FLUSHING PHASE + + SKIPN GCHAIR ; ONLY IF HAIR + PUSHJ P,VALFLS + + SKIPN GCHAIR + PUSHJ P,ATCLEA ; CLEAN UP ATOM TABLE + + SKIPE GCHAIR ; IF NOT HAIR, DO CHANNELS NOW + PUSHJ P,CHNFLS + + PUSHJ P,ASSOUP ; UPDATE AND MOVE ASSOCIATIONS + PUSHJ P,CHFIX ; SEND OUT CHANNELS AND MARK LOSERS + PUSHJ P,STOGC ; FIX UP FROZEN WORLD + MOVE P,GCPDL ; SWITCH PDLS IN CASE THIS ONE DISSAPPEARS + + MOVE A,NPARBO ; UPDATE GCSBOT + MOVEM A,GCSBOT + MOVE A,PURSVT + PUSH P,PURVEC+1 + MOVEM A,PURVEC+1 ; RESTORE PURVEC + PUSHJ P,CORADJ ; ADJUST CORE SIZE + POP P,PURVEC+1 + + + + +; MOVE NEW GC SPACE IN + +NOMAP1: MOVE A,P.TOP + SUBI A,1 + MOVE C,PARBOT + MOVE B,C + SUB A,B + HRLI B,GCSEG + DOMULT [XBLT A,] + + +; NOW REHASH THE ASSOCIATIONS BASED ON VALUES +GARZR1: PUSHJ P,REHASH + + + ;RESTORE AC'S +TRYCOX: SKIPN GCMONF + JRST NOMONO + MOVEI B,[ASCIZ /GOUT /] + PUSHJ P,MSGTYP +NOMONO: MOVE PVP,PVSTOR+1 + IRP AC,,[0,A,B,C,D,E,P,R,M,SP,TP,TB,AB,TVP,FRM] + MOVE AC,AC!STO+1(PVP) + TERMIN + SKIPN DSTORE + SETZM DSTO(PVP) + MOVE PVP,PVPSTO+1(PVP) + +; CLOSING ROUTINE FOR G-C + PUSH P,A ; SAVE AC'C + PUSH P,B + PUSH P,C + PUSH P,D + + MOVE A,FRETOP ; ADJUST BLOAT-STAT PARAMETERS + SUB A,GCSTOP + ADDM A,NOWFRE + PUSHJ P,GCSET ; FIX UP BLOAT-STAT PARAMETERS + MOVE A,CURTP + ADDM A,NOWTP + MOVE A,CURP + ADDM A,NOWP + + PUSHJ P,CTIME + FSBR B,GCTIM ; GET TIME ELAPSED + SKIPN INBLOT ; STORE TIME ONLY IF NO RETRY + SKIPN GCDANG + MOVEM B,GCTIM ; SAVE ELAPSED TIME FOR INT-HANDLER + SKIPN GCMONF ; SEE IF MONITORING + JRST GCCONT + PUSHJ P,FIXSEN ; OUTPUT TIME + MOVEI A,15 ; OUTPUT C/R LINE-FEED + PUSHJ P,IMTYO + MOVEI A,12 + PUSHJ P,IMTYO +GCCONT: MOVE C,[NTPGOO,,NTPMAX] ; MAY FIX UP TP PARAMS TO ENCOURAGE + ; SHRINKAGE FOR EXTRA ROOM + SKIPE GCDANG + MOVE C,[ETPGOO,,ETPMAX] + HLRZM C,TPGOOD + HRRZM C,TPMAX + POP P,D ; RESTORE AC'C + POP P,C + POP P,B + POP P,A + MOVE A,GCDANG + JUMPE A,AGCWIN ; IF ZERO THE GC WORKED + SKIPN GCHAIR ; SEE IF HAIRY GC + JRST BTEST +REAGCX: MOVEI A,1 ; PREPARE FOR A HAIRY GC + MOVEM A,GCHAIR + SETZM GCDANG + MOVE C,[11,,10.] ; REASON FOR GC + JRST ISECGC + +BTEST: SKIPE INBLOT + JRST AGCWIN + FATAL AGC--NO CORE AVAILABLE TO SATISFY REQUESTS + JRST REAGCX + +AGCWIN: SETZM PARNEW ;CLEAR FOR NEXT AGC CALL + SETZM GETNUM ;ALSO CLEAR THIS + SETZM INBLOT + SETZM GCFLG + + SETZM PGROW ; CLEAR GROWTH + SETZM TPGROW + SETOM GCHAPN ; INDICATE A GC HAS HAPPENED + SETOM GCHPN + SETOM INTFLG ; AND REQUEST AN INTERRUPT + SETZM GCDOWN + PUSHJ P,RBLDM + JUMPE R,FINAGC + JUMPN M,FINAGC ; IF M 0, RUNNING RSUBR SWAPPED OUT + SKIPE PLODR ; IF LOADING ONE, IT MIGHT NOT HAVE ARRIVED + JRST FINAGC + + FATAL AGC--RUNNING RSUBR WENT AWAY + +AGCE1: FATAL AGC--TYPE VECTOR NOT OF TYPE VECTOR + + ; CORE ADJUSTMENT PHASE + +CORADJ: MOVE A,PURTOP + SUB A,CURPLN ; ADJUST FOR RSUBR + MOVEM A,RPTOP + HRRZ A,FPTR ; NEW GCSTOP + ADDI A,1777 ; GCPDL AND ROUND + ANDCMI A,1777 ; TO PAGE BOUNDRY + MOVEM A,CORTOP ; TAKE CARE OF POSSIBLE LATER LOSSAGE + CAMLE A,RPTOP ; SEE IF WE CAN MAP THE WORLD BACK IN + FATAL AGC--UNABLE TO MAP GC-SPACE INTO CORE + CAMG A,PURBOT ; SEE IF WE HAVE TO PUNT SOME PURE TO DO IT + JRST CORAD0 ; DON'T HAVE TO PUNT SOME PURE + PUSHJ P,MAPOUT ; GET THE CORE + FATAL AGC--PAGES NOT AVAILABLE + +; NOW THAT WE ARE ABLE TO MAP TO GCS INTO CORE WE WILL TRY TO HONOR SOME REQUESTS +; FIRST LETS SEE IF WE HAVE TO CORE DOWN. +; GCDOWN IS DEFINED AS AMOUNT FROM FRETOP TO PURBOT NEEDED + +CORAD0: SKIPN B,GCDOWN ; CORE DOWN? + JRST CORAD1 ; NO, LETS GET CORE REQUIREMENTS + ADDI A,(B) ; AMOUNT+ONE FREE BLOCK + CAMGE A,RPTOP ; CAN WE WIN + JRST CORAD3 ; POSSIBLY + +; THIS IS A EXIT FOR LOSSAGE WITHOUT A FATAL ERROR +CORAD2: SETOM GCDANG ; INDICATE LOSSAGE + +; CALCULATE PARAMETERS BEFORE LEAVING +CORAD6: MOVE A,PURSVT ; GET PURE TABLE + PUSHJ P,SPCOUT ; OUT IT GOES IN CASE IT WAS CHANGED + HRRZ A,FPTR ; GCSTOP + MOVEM A,GCSTOP + MOVE A,CORTOP ; ADJUST CORE IMAGE + ASH A,-10. ; TO PAGES +TRYPCO: PUSHJ P,P.CORE + FATAL NO CORE? + MOVE A,CORTOP ; GET IT BACK + ANDCMI A,1777 + MOVEM A,FRETOP + MOVEM A,RFRETP + POPJ P, + + +; TRIES TO SATISFY REQUEST FOR CORE +CORAD1: MOVEM A,CORTOP + HRRZ A,FPTR + ADD A,GETNUM ; ADD MINIMUM CORE NEEDED + ADDI A,1777 ; ONE BLOCK+ROUND + ANDCMI A,1777 ; TO BLOCK BOUNDRY + CAMLE A,RPTOP ; CAN WE WIN + JRST CORAD2 ; LOSE + CAMGE A,PURBOT + JRST CORAD7 ; DON'T HAVE TO MAP OUT PURE + PUSHJ P,MAPOUT + JRST CORAD2 ; LOSS + +; NOW TRY TO GET SLOP SPACE. NOT NECESSARY BUT NICE +CORAD7: MOVEM A,CORTOP ; STORE POSSIBLE VALUE + MOVE B,RPTOP ; GET REAL PURTOP + SUB B,PURMIN ; KEEP PURMIN + CAMG B,CORTOP ; SEE IF CORTOP IS ALREADY HIGH + MOVE B,CORTOP ; DONT GIVE BACK WHAT WE GOT + MOVEM B,RPTOP ; FOOL CORE HACKING + ADD A,FREMIN + ANDCMI A,1777 ; TO PAGE BOUNDRY + CAMGE A,RPTOP ; DO WE WIN TOTALLY + JRST CORAD4 + MOVE A,RPTOP ; GET AS MUCH CORE AS POSSIBLE + PUSHJ P,MAPOUT + JRST CORAD6 ; LOSE, BUT YOU CAN'T HAVE EVERYTHING +CORAD4: CAMG A,PURBOT ; DO WE HAVE TO PUNT SOME PURE + JRST CORAD8 + PUSHJ P,MAPOUT ; GET IT + JRST CORAD6 + MOVEM A,CORTOP ; ADJUST PARAMETER + JRST CORAD6 ; WIN TOTALLY +CORAD8: MOVEM A,CORTOP ; NEW CORTOP + JRST CORAD6 + +; WE CAN CORE DOWN NOW TO SEE IF WE CAN GET SOME SLOP SPACE + +CORAD3: ADD A,FREMIN + ANDCMI A,1777 + CAMGE A,PURBOT ; CAN WE WIN + JRST CORAD9 + MOVE A,RPTOP +CORAD9: SUB A,GCDOWN ; SATISFY GCDOWN REQUEST + JRST CORAD4 ; GO CHECK ALLOCATION + +MAPOUT: PUSH P,A ; SAVE A + SUB A,P.TOP ; AMOUNT TO GET + ADDI A,1777 ; ROUND + ANDCMI A,1777 ; TO PAGE BOUNDRY + ASH A,-PGSZ ; TO PAGES + PUSHJ P,GETPAG ; GET THEN + JRST MAPLOS ; LOSSAGE + AOS -1(P) ; INDICATE WINNAGE +MAPLOS: POP P,A + POPJ P, + + + + ; CONVERSION FROM FLOAT TO DECIMAL. X 100 AND SEND OUT WITH APPROPRIATELY PLACED DECIMAL +; POINT. + +FIXSEN: PUSH P,B ; SAVE TIME + MOVEI B,[ASCIZ /TIME= /] + PUSHJ P,MSGTYP ; PRINT OUT MESSAGE + POP P,B ; RESTORE B + FMPRI B,(100.0) ; CONVERT TO FIX + MULI B,400 + TSC B,B + ASH C,-163.(B) + MOVEI A,1 ; INITIALIZE COUNT OF CHARACTERS FOR PUTTING OUT TIME + PUSH P,C + IDIVI C,10. ; START COUNTING + JUMPLE C,.+2 + AOJA A,.-2 + POP P,C + CAIN A,1 ; SEE IF THERE IS ONLY ONE CHARACTER + JRST DOT1 +FIXOUT: IDIVI C,10. ; RECOVER NUMBER + HRLM D,(P) + SKIPE C + PUSHJ P,FIXOUT + PUSH P,A ; SAVE A + CAIN A,2 ; DECIMAL POINT HERE? + JRST DOT2 +FIX1: HLRZ A,(P)-1 ; GET NUMBER + ADDI A,60 ; MAKE IT A CHARACTER + PUSHJ P,IMTYO ; OUT IT GOES + MOVEI A,FSEG + HRLM A,-1(P) + POP P,A + SOJ A, + POPJ P, +DOT1: MOVEI A,". ; OUTPUT DECIMAL POINT AND PADDING 0 + PUSHJ P,IMTYO + MOVEI A,"0 + PUSHJ P,IMTYO + JRST FIXOUT ; CONTINUE +DOT2: MOVEI A,". ; OUTPUT DECIMAL POINT + PUSHJ P,IMTYO + JRST FIX1 + + + ; SUBROUTINE TO CHECK SIZE OF PDLS AND DO FENCEPOSTING + +PDLCHK: JUMPGE A,CPOPJ + HLRE B,A ;GET NEGATIVE COUNT + MOVE C,A ;SAVE A COPY OF PDL POINTER + SUBI A,-1(B) ;LOCATE DOPE WORD PAIR + HRRZS A ; ISOLATE POINTER + CAME A,TPGROW ;GROWING? + ADDI A,PDLBUF ;NO, POINT TO REAL DOPE WORD + MOVMS B + CAIN A,2(C) + JRST NOFENC + SETOM 1(C) ; START FENECE POST + CAIN A,3(C) + JRST NOFENC + MOVSI D,1(C) ;YES, SET UP TO BLT FENCE POSTS + HRRI D,2(C) + BLT D,-2(A) ;FENCE POST ALL EXCEPT DOPE WORDS + + +NOFENC: CAMG B,TPMAX ;NOW CHECK SIZE + CAMG B,TPMIN + JRST MUNGTP ;TOO BIG OR TOO SMALL + POPJ P, + +MUNGTP: SUB B,TPGOOD ;FIND DELTA TP +MUNG3: MOVE C,-1(A) ;IS GROWTH ALREADY SPECIFIED + TRNE C,777000 ;SKIP IF NOT + POPJ P, ;ASSUME GROWTH GIVEN WILL WIN + + ASH B,-6 ;CONVERT TO NUMBER OF BLOCKS + JUMPLE B,MUNGT1 + CAILE B,377 ; SKIP IF BELOW MAX + MOVEI B,377 ; ELSE USE MAX + TRO B,400 ;TURN ON SHRINK BIT + JRST MUNGT2 +MUNGT1: MOVMS B + ANDI B,377 +MUNGT2: DPB B,[TOPGRO,,-1(A)] ;STORE IN DOPE WORD + POPJ P, + +; CHECK UNMARKED STACK (NO NEED TO FENCE POST) + +PDLCHP: HLRE B,A ;-LENGTH TO B + MOVE C,A + SUBI A,-1(B) ;POINT TO DOPE WORD + HRRZS A ;ISOLATE POINTER + CAME A,PGROW ;GROWING? + ADDI A,PDLBUF ;NO, POINT TO REAL DOPE WORD + MOVMS B + CAIN A,2(C) + JRST NOPF + SETOM 1(C) ; START FENECE POST + CAIN A,3(C) + JRST NOPF + MOVSI D,1(C) + HRRI D,2(C) + BLT D,-2(A) + +NOPF: CAMG B,PMAX ;TOO BIG? + CAMG B,PMIN ;OR TOO LITTLE + JRST .+2 ;YES, MUNG IT + POPJ P, + SUB B,PGOOD + JRST MUNG3 + + +; ROUTINE TO PRE MARK SPECIAL HACKS + +PRMRK: SKIPE GCHAIR ; FLUSH IF NO HAIR + POPJ P, +PRMRK2: HLRE B,A + SUBI A,(B) ;POINT TO DOPE WORD + HLRZ EXTAC,1(A) ; GET LNTH + LDB 0,[TOPGRO,,(A)] ; GET GROWTHS + TRZE 0,400 ; SIGN HACK + MOVNS 0 + ASH 0,6 ; TO WORDS + ADD EXTAC,0 + LDB 0,[BOTGRO,,(A)] + TRZE 0,400 + MOVNS 0 + ASH 0,6 + ADD EXTAC,0 + PUSHJ P,ALLOGC + HRRM 0,1(A) ; NEW RELOCATION FIELD + IORM D,1(A) ;AND MARK + POPJ P, + + + ;GENERAL MARK SUBROUTINE. CALLED TO MARK ALL THINGS +; A/ GOODIE TO MARK FROM +; B/ TYPE OF A (IN RH) +; C/ TYPE,DATUM PAIR POINTER + +MARK2A: +MARK2: HLRZ B,(C) ;GET TYPE +MARK1: MOVE A,1(C) ;GET GOODIE +MARK: JUMPE A,CPOPJ ; NEVER MARK 0 + MOVEI 0,1(A) + CAML 0,PURBOT + JRST GCRETD +MARCON: PUSH P,C + PUSH P,A + ANDI B,TYPMSK ; FLUSH MONITORS + LSH B,1 ;TIMES 2 TO GET SAT + HRRZ B,@TYPNT ;GET SAT + ANDI B,SATMSK + JUMPE A,GCRET + CAILE B,NUMSAT ; SKIP IF TEMPLATE DATA + JRST TD.MRK + JRST @SMKTBS(B) + +SMKTBS: + +OFFSET 0 + +TBLDIS DUM2,GCRET,[[S2WORD,PAIRMK],[S2DEFR,DEFMK],[SNWORD,VECTMK],[STBASE,TBMK] +[STPSTK,TPMK],[SARGS,ARGMK],[S2NWORD,VECTMK],[SPSTK,TPMK],[SSTORE,VECTMK] +[SFRAME,FRMK],[SBYTE,BYTMK],[SATOM,ATOMK],[SPVP,VECTMK],[SGATOM,GATOMK] +[SLOCID,LOCMK],[SCHSTR,BYTMK],[SASOC,ASMRK],[SLOCL,PAIRMK],[SABASE,ABMK] +[SLOCA,ARGMK],[SLOCV,VECTMK],[SLOCU,VECTMK],[SLOCS,BYTMK],[SLOCN,ASMRK] +[SLOCR,LOCRMK],[SRDTB,GCRDMK],[SLOCB,BYTMK],[SDEFQ,DEFQMK],[SOFFS,OFFSMK]]NUMSAT,400000 + +OFFSET OFFS + +; HERE TO MARK A POSSIBLE DEFER POINTER + +DEFQMK: GETYP B,(A) ; GET ITS TYPE + LSH B,1 + HRRZ B,@TYPNT + ANDI B,SATMSK ; AND TO SAT + SKIPGE MKTBS(B) + +;HERE TO MARK THAT WHICH IS POINTED TO BY A DEFERRED POINTER + +DEFMK: SETOM GENFLG ; SET FLAG SAYING DEFERRED + CAIA + +;HERE TO MARK LIST ELEMENTS + +PAIRMK: SETZM GENFLG ;TURN OF DEFER BIT + PUSH P,[0] ; WILL HOLD BACK PNTR + MOVEI C,(A) ; POINT TO LIST +PAIRM1: CAMGE C,PARTOP ;CHECK FOR BEING IN BOUNDS + CAMGE C,PARBOT + FATAL AGC--MARKED PAIR OUTSIDE PAIR SPACE + SKIPGE B,(C) ;SKIP IF NOT MARKED + JRST RETNEW ;ALREADY MARKED, RETURN + IORM D,(C) ;MARK IT + DOMULT [MOVEM B,(FPTR)] + MOVE 0,1(C) ; AND 2D + DOMULT [MOVEM 0,1(FPTR)] + ADDI FPTR,2 ; MOVE ALONG IN NEW SPACE + +PAIRM2: MOVEI A,-2(FPTR) ; GET INF ADDR + HRRM A,(C) ; LEAVE A POINTER TO NEW HOME + HRRZ E,(P) ; GET BACK POINTER + JUMPE E,PAIRM7 ; 1ST ONE, NEW FIXUP + HRLI E,GCSEG + DOMULT [HRRM A,(E)] ; CLOBBER +PAIRM4: MOVEM A,(P) ; NEW BACK POINTER + SKIPGE GENFLG + JRST DEFDO ;GO HANDLE DEFERRED POINTER + HRLM B,(P) ; SAVE OLD CDR + PUSHJ P,MARK2 ;MARK THIS DATUM + HRRZ E,(P) ; SMASH CAR IN CASE CHANGED + HRLI E,GCSEG + DOMULT [MOVEM A,1(E)] + HLRZ C,(P) ;GET CDR OF LIST + CAIGE C,@PURBOT ; SKIP IF PURE (I.E. DONT MARK) + JUMPN C,PAIRM1 ;IF NOT NIL, MARK IT +GCRETP: ADJSP P,-1 + +GCRET: SETZM GENFLG ;FOR PAIRMKS BENEFIT + POP P,A ;RESTORE C AND A + POP P,C + POPJ P, ;AND RETURN TO CALLER + +GCRETD: ANDI B,TYPMSK ; TURN OFF MONITORS + CAIN B,TLOCR ; SEE IF A LOCR + JRST MARCON + POPJ P, + +;HERE TO MARK DEFERRED POINTER + +DEFDO: PUSH P,B ; PUSH OLD PAIR ON STACK + PUSH P,1(C) + MOVEI C,-1(P) ; USE AS NEW DATUM + HRLI C,GCSEG ; KEEP IN CORRECT SECTION + PUSHJ P,MARK2 ;MARK THE DATUM + HRRZ E,-2(P) ; GET POINTER IN INF CORE + HRLI E,GCSEG + DOMULT [MOVEM A,1(E)] + MOVE A,-1(P) + DOMULT [HRRM A,(E)] + ADJSP P,-3 + JRST GCRET ;AND RETURN + + +PAIRM7: MOVEM A,-1(P) ; SAVE NEW VAL FOR RETURN + JRST PAIRM4 + +RETNEW: HRRZ A,(C) ; POINT TO NEW WORLD LOCN + HRRZ E,(P) ; BACK POINTER + JUMPE E,RETNW1 ; NONE + HRLI E,GCSEG + DOMULT [HRRM A,(E)] + JRST GCRETP + +RETNW1: MOVEM A,-1(P) + JRST GCRETP + + + ; VECTOR AND TP MARKER, SIGN OF TYPNT IS SET BASED ON WHICH ONE + +TPMK: SETOM GENFLG ;SET TP MARK FLAG + CAIA +VECTMK: SETZM GENFLG + PUSH P,FPTR + MOVEI E,(A) ;SAVE A POINTER TO THE VECTOR + HLRE B,A ;GET -LNTH + SUB A,B ;LOCATE DOPE WORD + MOVEI A,1(A) ;ZERO LH AND POINT TO 2ND DOPE WORD + CAIL A,STOSTR ; CHECK IN VECTOR SPACE + CAMLE A,GCSTOP + JRST VECTB1 ;LOSE, COMPLAIN + + MOVE 0,GENFLG + HLLM 0,(P) ; SAVE TP VS VECT INDICATOR + JUMPE 0,NOBUFR ;IF A VECTOR, NO BUFFER CHECK + CAME A,PGROW ;IS THIS THE BLOWN P + CAMN A,TPGROW ;IS THIS THE GROWING PDL + JRST NOBUFR ;YES, DONT ADD BUFFER + ADDI A,PDLBUF ;POINT TO REAL DOPE WORD + MOVSI 0,-PDLBUF ;ALSO FIX UP POINTER + ADD 0,1(C) + MOVEM 0,-1(P) ; FIXUP RET'D PNTR + +NOBUFR: HLRE B,(A) ;GET LENGTH FROM DOPE WORD + JUMPL B,EXVECT ; MARKED, LEAVE + LDB B,[TOPGRO,,-1(A)] ; GET TOP GROWTH + TRZE B,400 ; HACK SIGN BIT + MOVNS B + ASH B,6 ; CONVERT TO WORDS + PUSH P,B ; SAVE TOP GROWTH + LDB 0,[BOTGRO,,-1(A)] ;GET GROWTH FACTOR + TRZE 0,400 ;KILL SIGN BIT AND SKIP IF + + MOVNS 0 ;NEGATE + ASH 0,6 ;CONVERT TO NUMBER OF WORDS + PUSH P,0 ; SAVE BOTTOM GROWTH + ADD B,0 ;TOTAL GROWTH TO B +VECOK: HLRE E,(A) ;GET LENGTH AND MARKING + MOVEI EXTAC,(E) ;SAVE A COPY + ADD EXTAC,B ;ADD GROWTH + SUBI E,2 ;- DOPE WORD LENGTH + IORM D,(A) ;MAKE SURE NOW MARKED + PUSHJ P,ALLOGC ; ALLOCATE SPACE FOR VECTOR IN THE INF + HRRM 0,(A) +VECOK1: JUMPLE E,MOVEC2 ; ZERO LENGTH, LEAVE + PUSH P,A ; SAVE POINTER TO DOPE WORD + MOVE EXTAC,GENFLG + SKIPGE B,-1(A) ;SKIP IF UNIFORM + TLNE B,377777-.VECT. ;SKIP IF NOT SPECIAL + JUMPE EXTAC,NOTGEN ;JUMP IF NOT A GENERAL VECTOR + +GENRAL: HLRZ 0,B ;CHECK FOR PSTACK + TRZ 0,.VECT. + JUMPE 0,NOTGEN ;IT ISN'T GENERAL + JUMPN EXTAC,TPMK1 ; JUMP IF TP + MOVEI C,(A) + SUBI C,1(E) ; C POINTS TO BEGINNING OF VECTOR + + ; LOOP TO MARK ELEMENTS IN A GENERAL VECTOR +VECTM2: HLRE B,(C) ;GET TYPE AND MARKING + JUMPL B,UMOVEC ;RETURN, (EITHER DOPE WORD OR FENCE POST) + MOVE A,1(C) ;DATUM TO A + + +VECTM3: PUSHJ P,MARK ;MARK DATUM + MOVEM A,1(C) ; IN CASE WAS FIXED +VECTM4: ADDI C,2 + JRST VECTM2 + +UMOVEC: POP P,A +MOVEC2: POP P,C ; RESTORE BOTTOM GROWTH + CAMGE A,GCSBOT ; DONT DO THIS STUFF IF THIS IS FROZEN + JRST EXVEC1 + HRRZ B,-1(P) ; GET POINTER INTO INF + JUMPLE C,MOVEC3 + ADD B,C ; GROW IT +MOVEC3: HLLZ 0,-1(A) ; MODIFY DOPE WORD AND PLACE IN INF + TLO 0,.VECT. + HRRZ EXTAC,(A) ; DESTINATION OF DOPEWORDS (SORT OF) + HRLI EXTAC,GCSEG ; MAKE INTO CORRECT KIND OF ADDR + DOMULT [MOVEM 0,-1(EXTAC)] + HLRZ 0,(A) + ANDI 0,377777 ; KILL MARK BIT + SKIPG C + ADD 0,C ; COMPENSATE FOR SHRINKAGE + MOVE EXTAC,A + SUB A,0 + ADDI A,1 + SKIPGE (P) ; ACCOUNT FOR OTHER END SHRINKAGE + ADD 0,(P) + HRLI B,GCSEG + SUBI 0,2 ; AVOID RE-SENDING DOPE WORDS + DOMULT [XBLT 0,] ; MOVE VECTOR TO OTHER IMAGE + MOVE A,EXTAC +EXVEC1: ADJSP P,-1 + +EXVECT: HLRZ B,(P) + ADJSP P,-1 ; GET RID OF FPTR + PUSHJ P,RELATE ; RELATIVIZE + JUMPE B,GCRET + MOVSI 0,PDLBUF ; FIX UP STACK PTR + ADDM 0,(P) + JRST GCRET ; EXIT + +VECLOS: JUMPL C,CCRET ;JUMP IF CAN'T MUNG TYPE + HLLZ 0,(C) ;GET TYPE + MOVEI B,TILLEG ;GET ILLEGAL TYPE + HRLM B,(C) + MOVEM 0,1(C) ;AND STORE OLD TYPE AS VALUE + JRST UMOVEC ;RETURN WITHOUT MARKING VECTOR + +CCRET: CLEARM 1(C) ;CLOBBER THE DATUM + JRST GCRET + + +; ROUTINE TO MARK A TP. IT SCANS THE TP. IT MARKS ALL THE ITEMS AND IT MAPS AN +; UPDATED VERSION INTO THE INFERIOR WITHOUT CHANGING THE ORIGINAL. + +TPMK1: +TPMK2: POP P,A ; RESTORE DW POINTER + POP P,C ; AND BOTTOM GROWTH + HRRZ E,-1(P) ; FIX UP PARAMS + ADDI E,(C) + PUSH P,A ; REPUSH A + HRRZ B,(A) ; CALCULATE RELOCATION + SUB B,A + MOVE C,-1(P) ; ADJUST FOR GROWTH + SUB B,C + HRLZS C + HRLI E,GCSEG + PUSH P,C + PUSH P,B + PUSH P,E + PUSH P,[0] +TPMK3: HLRZ E,(A) ; GET LENGTH + TRZ E,400000 ; GET RID OF MARK BIT + SUBI A,-1(E) ;POINT TO FIRST ELEMENT + MOVEI C,(A) ;POINT TO FIRST ELEMENT WITH C +TPMK4: HLRE B,(C) ;GET TYPE AND MARKING + JUMPL B,TPMK7 ;RETURN, (EITHER DOPE WORD OR FENCE POST) + HRRZ A,(C) ;DATUM TO A + ANDI B,TYPMSK ; FLUSH MONITORS + CAIE B,TCBLK + CAIN B,TENTRY ;IS THIS A STACK FRAME + JRST MFRAME ;YES, MARK IT + CAIE B,TUBIND ; BIND + CAIN B,TBIND ;OR A BINDING BLOCK + JRST MBIND + CAIE B,TBVL ; CHECK FOR OTHER BINDING HACKS + CAIN B,TUNWIN + SKIPA ; FIX UP SP-CHAIN + CAIN B,TSKIP ; OTHER BINDING HACK + PUSHJ P,FIXBND + +TPMK5: PUSH P,(C) ; SAVE BECAUSE FRAMES MIGHT MUNG IT + HRRM A,(C) ; FIX UP IN CASE OF SP CHAIN + PUSHJ P,MARK1 ;MARK DATUM + MOVE R,A ; SAVE A + POP P,M + MOVE A,(C) + AOS E,-1(P) ; MOVE OUT TYPE + DOMULT [MOVEM A,-1(E)] + DOMULT [MOVEM R,(E)] + AOS -1(P) + MOVEM M,(C) ; RESTORE TO OLD VALUE +TPMK6: ADDI C,2 + JRST TPMK4 + +MFRAME: HRRZ 0,1(C) ; SET UP RELITIVIZATION OF PTR TO PREVIOUS + ; FRAME + HRROI C,FRAMLN+FSAV-1(C) ;POINT TO FUNCTION + HRRZ A,1(C) ; GET IT + CAIL A,STOSTR ; CHECK IN VECTOR SPACE + CAMLE A,GCSTOP + JRST MFRAM1 ; IGNORE, NOT IN VECTOR SPACE + HRL A,(A) ; GET LENGTH + MOVEI B,TVEC + PUSHJ P,MARK ; AND MARK IT +MFRAM1: HLL A,1(C) + MOVE E,-1(P) + DOMULT [MOVEM A,(E)] + HRRZ A,OTBSAV-FSAV+1(C) ; POINT TO TB TO PREVIOUS FRAME + SKIPE A + ADD A,-2(P) ; RELOCATE IF NOT 0 + HLL A,2(C) + DOMULT [MOVEM A,1(E)] + MOVE A,-2(P) ; ADJUST AB SLOT + ADD A,ABSAV-FSAV+1(C) ; POINT TO SAVED AB + DOMULT [MOVEM A,2(E)] + MOVE A,-2(P) ; ADJUST SP SLOT + ADD A,SPSAV-FSAV+1(C) ;POINT TO SAVED SP + SUB A,-3(P) ; ADJUSTMENT OF LENGTH IF GROWTH + DOMULT [MOVEM A,3(E)] + HRROI C,PSAV-FSAV(C) ;POINT TO SAVED P + MOVEI B,TPDL + ADDI E,FRAMLN ; UPDATE OUT ADDR + MOVEM E,-1(P) + PUSHJ P,MARK1 ;AND MARK IT + MOVE E,-1(P) + DOMULT [MOVEM A,-3(E)] ; STORE UPDATED P + HLRE 0,TPSAV-PSAV+1(C) + MOVE A,TPSAV-PSAV+1(C) + SUB A,0 + MOVEI 0,1(A) + MOVE A,TPSAV-PSAV+1(C) + CAME 0,TPGROW ; SEE IF BLOWN + JRST MFRAM9 + MOVSI 0,PDLBUF + ADD A,0 +MFRAM9: ADD A,-2(P) + SUB A,-3(P) ; ADJUST + DOMULT [MOVEM A,-2(E)] ; AND UPDATED TP + MOVE A,PCSAV-PSAV+1(C) + DOMULT [MOVEM A,-1(E)] ; DONT FORGET SAVED PC + HRROI C,-PSAV+1(C) ; POINT PAST THE FRAME + JRST TPMK4 ;AND DO MORE MARKING + +MBIND: PUSHJ P,FIXBND + MOVEI B,TATOM ;FIRST MARK ATOM + SKIPN GCHAIR ; IF NO HAIR, MARK ALL NOW + SKIPE (P) ; PASSED MARKER, IF SO DONT SKIP + JRST MBIND2 ; GO MARK + MOVE A,1(C) ; RESTORE A + CAME A,GCATM + JRST MBIND1 ; NOT IT, CONTINUE SKIPPING + HRRM LPVP,2(C) ; SAVE IN RH OF TPVP,,0 + MOVE 0,-4(P) ; RECOVER PTR TO DOPE WORD + HRLM 0,2(C) ; SAVE FOR MOVEMENT + MOVEI B,TATOM ; MARK THE BINDING TO THIS PROCESS + PUSHJ P,MARK1 ; MARK THE ATOM + MOVEI LPVP,(C) ; POINT + SETOM (P) ; INDICATE PASSAGE +MBIND1: ADDI C,6 ; SKIP BINDING + MOVEI 0,6 + SKIPE -1(P) ; ONLY UPDATE IF SENDING OVER + ADDM 0,-1(P) + JRST TPMK4 + +MBIND2: HLL A,(C) + AOS E,-1(P) ; FIX UP CHAIN + DOMULT [MOVEM A,-1(E)] + MOVEI B,TATOM ; RESTORE IN CASE SMASHED + PUSHJ P,MARK1 ; MARK ATOM + AOS E,-1(P) ; SEND IT OUT + DOMULT [MOVEM A,-1(E)] + ADDI C,2 + PUSH P,(C) ; SAVE BECAUSE FRAMES MIGHT MUNG IT + PUSHJ P,MARK2 ;MARK DATUM + MOVE R,A ; SAVE A + POP P,M + MOVE A,(C) + AOS E,-1(P) ; SEND IT OUT + DOMULT [MOVEM A,-1(E)] + MOVE A,R + DOMULT [MOVEM A,(E)] ; SEND OUT VALUE + AOS -1(P) + MOVEM M,(C) ; RESTORE TO OLD VALUE + ADDI C,2 + MOVEI B,TLIST ; POINT TO DECL SPECS + HLRZ A,(C) + PUSHJ P,MARK ; AND MARK IT + HRR A,(C) ; LIST FIX UP + AOS E,-1(P) ; SEND IT OUT + DOMULT [MOVEM A,-1(E)] + SKIPL A,1(C) ; PREV LOC? + JRST NOTLCI + MOVEI B,TLOCI ; NOW MARK LOCATIVE + PUSHJ P,MARK1 +NOTLCI: AOS E,-1(P) ; SEND IT OUT + DOMULT [MOVEM A,-1(E)] + ADDI C,2 + JRST TPMK4 + +FIXBND: HRRZ A,(C) ; GET PTR TO CHAIN + SKIPE A ; DO NOTHING IF EMPTY + ADD A,-3(P) + POPJ P, +TPMK7: +TPMK8: MOVNI A,1 ; FENCE-POST THE STACK + AOS E,-1(P) ; SEND IT OUT + DOMULT [MOVEM A,-1(E)] + ADDI C,1 ; INCREMENT C FOR FENCE-POST + ADJSP P,-1 ; CLEAN UP STACK + POP P,E ; GET UPDATED PTR TO INF + ADJSP P,-2 ; POP OFF RELOCATION + HRRZ A,(P) + HLRZ B,(A) + TRZ B,400000 + SUBI A,-1(B) + SUBI C,(A) ; GET # OF WORDS TRANSFERED + SUB B,C ; GET # LEFT + ADDI E,-2(B) ; ADJUST POINTER TO INF + POP P,A + POP P,C ; IS THERE TOP GROWH + ADD E,C ; MAKE ADJUSTMENT FOR TOP GROWTH + ANDI E,-1 + HLLZ 0,-1(A) ; MODIFY DOPE WORD AND PLACE IN INF + TLO 0,.VECT. + HRRZ EXTAC,(A) ; DESTINATION OF DOPEWORDS (SORT OF) + HRLI EXTAC,GCSEG ; MAKE INTO CORRECT KIND OF ADDR + DOMULT [MOVEM 0,-1(EXTAC)] + JRST EXVECT + +; ROUTINE TO ALLOCATE ROOM FOR VECTORS IN INFERIOR +; EXTAC= # OF WORDS TO ALLOCATE + +ALLOGC: HRRZS A ; GET ABS VALUE + CAML A,GCSBOT ; SKIP IF IN STORAGE + JRST ALOGC2 ; JUMP IF ALLOCATING + HRRZ 0,A + POPJ P, +ALOGC2: +ALOGC1: ADDI FPTR,(EXTAC) + MOVEI 0,-1(FPTR) + DOMULT [HRRM 0,-1(FPTR)] + DOMULT [HRLM EXTAC,-1(FPTR)] + POPJ P, + + ; RELATE RELATAVIZES A POINTER TO A VECTOR +; B IS THE POINTER A==> DOPE WORD + +RELATE: CAMGE A,GCSBOT ; SEE IF IN VECTOR SPACE + POPJ P, ; IF NOT EXIT + MOVE C,-1(P) + HLRE EXTAC,C ; GET LENGTH + HRRZ 0,-1(A) ; CHECK FO GROWTH + JUMPE A,RELAT1 + LDB 0,[TOPGRO,,-1(A)] ; GET TOP GROWTH + TRZE 0,400 ; HACK SIGN BIT + MOVNS 0 + ASH 0,6 ; CONVERT TO WORDS + SUB EXTAC,0 ; ACCOUNT FOR GROWTH +RELAT1: HRLM EXTAC,C ; PLACE CORRECTED LENGTH BACK IN POINTER + HRRZ EXTAC,(A) ; GET RELOCATED ADDR + SUBI EXTAC,(A) ; FIND RELATIVIZATION AMOUNT + ADD C,EXTAC ; ADJUST POINTER + SUB C,0 ; ACCOUNT FOR GROWTH + MOVEM C,-1(P) + POPJ P, + + + ; MARK TB POINTERS +TBMK: HRRZS A ; CHECK FOR NIL POINTER + SKIPN A + JRST GCRET ; IF POINTING TO NIL THEN RETURN + HLRE B,TPSAV(A) ; MAKE POINTER LOOK LIKE A TP POINTER + HRRZ C,TPSAV(A) ; GET TO DOPE WORD +TBMK2: SUB C,B ; POINT TO FIRST DOPE WORD + HRRZ A,(P) ; GET PTR TO FRAME + SUB A,C ; GET PTR TO FRAME + HRLS A + HRR A,(P) + MOVE C,P + PUSH P,A + MOVEI B,TTP + PUSHJ P,MARK + ADJSP P,-1 + HRRM A,(P) + JRST GCRET +ABMK: HLRE B,A ; FIX UP TO GET TO FRAME + SUB A,B + HLRE B,FRAMLN+TPSAV(A) ; FIX UP TO LOOK LIKE TP + HRRZ C,FRAMLN+TPSAV(A) + JRST TBMK2 + + +; MARK ARG POINTERS + +ARGMK: HRRZ A,1(C) ; GET POINTER + HLRE B,1(C) ; AND LNTH + SUB A,B ; POINT TO BASE + CAIL A,STOSTR ; CHECK IN VECTOR SPACE + CAMLE A,GCSTOP + JRST ARGMK0 + HLRZ 0,(A) ; GET TYPE + ANDI 0,TYPMSK + CAIN 0,TCBLK + JRST ARGMK1 + CAIE 0,TENTRY ; IS NEXT A WINNER? + CAIN 0,TINFO + JRST ARGMK1 ; YES, GO ON TO WIN CODE + +ARGMK0: SETZB A,1(C) ; CLOBBER THE CELL + SETZM (P) ; AND SAVED COPY + JRST GCRET + +ARGMK1: MOVE B,1(A) ; ASSUME TTB + ADDI B,(A) ; POINT TO FRAME + CAIE 0,TINFO ; IS IT? + MOVEI B,FRAMLN(A) ; NO, USE OTHER GOODIE + HLRZ 0,OTBSAV(B) ; GET TIME + HRRZ A,(C) ; AND FROM POINTER + CAIE 0,(A) ; SKIP IF WINNER + JRST ARGMK0 + MOVE A,TPSAV(B) ; GET A RELATAVIZED TP + HRROI C,TPSAV-1(B) + MOVEI B,TTP + PUSHJ P,MARK1 + SUB A,1(C) ; AMOUNT TO RELATAVIZE ARGS + HRRZ B,(P) + ADD B,A + HRRM B,(P) ; PUT RELATAVIZED PTR BACK + JRST GCRET + + +; MARK FRAME POINTERS + +FRMK: HLRZ B,A ; GET TIME FROM FRAME PTR + HLRZ EXTAC,OTBSAV(A) ; GET TIME FROM FRAME + CAME B,EXTAC ; SEE IF EQUAL + JRST GCRET + SUBI C,1 ;PREPARE TO MARK PROCESS VECTOR + HRRZ A,1(C) ;USE AS DATUM + SUBI A,1 ;FUDGE FOR VECTMK + MOVEI B,TPVP ;IT IS A VECTRO + PUSHJ P,MARK ;MARK IT + ADDI A,1 ; READJUST PTR + HRRM A,1(C) ; FIX UP PROCESS SLOT + MOVEI C,1(C) ; SET UP FOR TBMK + HRRZ A,(P) + JRST TBMK ; MARK LIKE TB + + +; MARK BYTE POINTER + +BYTMK: PUSHJ P,BYTDOP ; GET DOPE WORD IN A + HLRZ EXTAC,-1(A) ; GET THE TYPE + ANDI EXTAC,SATMSK ; FLUSH MONITOR BITS + CAIN EXTAC,SATOM ; SEE IF ATOM + JRST ATMSET + HLRE EXTAC,(A) ; GET MARKING + JUMPL EXTAC,BYTREL ; JUMP IF MARKED + HLRZ EXTAC,(A) ; GET LENGTH + PUSHJ P,ALLOGC ; ALLOCATE FOR IT + HRRM 0,(A) ; SMASH IT IN + MOVE B,0 + HLRZ 0,(A) + SUBI 0,1 ; DONT RESEND DW + SUBI B,-1(EXTAC) ; ADJUST INF POINTER + MOVE E,A + SUBI A,-1(EXTAC) + HRLI B,GCSEG + DOMULT [XBLT 0,] + IORM D,(E) + MOVE A,E +BYTREL: HRRZ E,(A) + SUBI E,(A) + ADDM E,(P) ; RELATAVIZE + JRST GCRET + +ATMSET: PUSH P,A ; SAVE A + HLRZ B,(A) ; GET LENGTH + TRZ B,400000 ; GET RID OF MARK BIT + MOVNI B,-2(B) ; GET LENGTH + ADDI A,-1(B) ; CALCULATE POINTER + HRLI A,(B) + MOVEI B,TATOM ; TYPE + PUSHJ P,MARK + POP P,A ; RESTORE A + JRST BYTREL ; TO BYTREL + + +; MARK OFFSET + +OFFSMK: HLRZS A + PUSH P,$TLIST + MOVE C,P + PUSH P,A ; PUSH LIST POINTER ON THE STACK + PUSHJ P,MARK2 ; MARK THE LIST + HRLM A,-2(P) ; UPDATE POINTER IN OFFSET + ADJSP P,-2 + JRST GCRET + + +; MARK ATOMS IN GVAL STACK + +GATOMK: HRRZ B,(C) ; POINT TO POSSIBLE GDECL + JUMPE B,ATOMK + CAIN B,-1 + JRST ATOMK + MOVEI A,(B) ; POINT TO DECL FOR MARK + MOVEI B,TLIST + MOVEI C,0 + PUSHJ P,MARK + MOVE C,-1(P) ; RESTORE HOME POINTER + HRRM A,(C) ; CLOBBER UPDATED LIST IN + MOVE A,1(C) ; RESTORE ATOM POINTER + +; MARK ATOMS + +ATOMK: + MOVEI 0,(FPTR) + PUSH P,0 ; SAVE POINTER TO INF + SETOM .ATOM. ; SAY ATOM WAS MARKED + MOVEI C,1(A) + PUSHJ P,GETLNT ;GET LENGTH AND CHECK BOUNDS + JRST ATMRL1 ; ALREADY MARKED + PUSH P,A ; SAVE DOPE WORD PTR FOR LATER + HLRZ C,(A) ; FIND REAL ATOM PNTR + SUBI C,400001 ; KILL MARK BIT AND ADJUST + HRLI C,-1(C) + SUBM A,C ; NOW TOP OF ATOM +MRKOBL: MOVEI B,TOBLS + HRRZ A,2(C) ; IF > 0, NOT OBL + CAMG A,VECBOT + JRST .+3 + HRLI A,-1 + PUSHJ P,MARK ; AND MARK IT + HRRM A,2(C) + SKIPN GCHAIR + JRST NOMKNX + HLRZ A,2(C) + MOVEI B,TATOM + PUSHJ P,MARK + HRLM A,2(C) +NOMKNX: HLRZ B,(C) ; SEE IF UNBOUND + TRZ B,400000 ; TURN OFF MARK BIT + SKIPE B + CAIN B,TUNBOUND + JRST ATOMK1 ; IT IS UNBOUND + HRRZ 0,(C) ; SEE IF VECTOR OR TP POINTER + MOVEI B,TVEC ; ASSUME VECTOR + SKIPE 0 + MOVEI B,TTP ; ITS A LOCAL VALUE + PUSHJ P,MARK1 ; MARK IT + MOVEM A,1(C) ; SMASH INTO SLOT +ATOMK1: HRRZ 0,2(C) ; CHECK IF NOT ON ANY OBLIST + POP P,B ; RESTORE A + POP P,C ; GET POINTER INTO INF + MOVE A,B + SKIPN GCHAIR + JUMPN 0,ATMREL ; ALWAYS SEND OUT ATOMS ON NO OBLIST + +; HERE WITH B POINT TO CURRENT DW AND C TO NEW DW, DO IT TO IT + +ATMOVX: PUSHJ P,XBLTR +ATMREL: HRRZ E,(A) ; RELATAVIZE + SUBI E,(A) + ADDM E,(P) + JRST GCRET +ATMRL1: ADJSP P,-1 ; POP OFF STACK + JRST ATMREL + +; HERE TO MOVE STUFF TO OTHER SEGMENT +; B==> CURRENT DW, C==> START OF NEW OBJECT (A MUST SURVIVE) +XBLTR: CAMGE B,GCSBOT + POPJ P, + MOVE EXTAC,A + HRRZ E,(B) ; NEW DW LOC + HRLI E,GCSEG + DOMULT [HLRZ A,(E)] + SUBI A,1 + SUBI B,(A) + HRLI C,GCSEG + DOMULT [XBLT A,] + MOVE A,EXTAC ; BACK TO A + POPJ P, + +GETLNT: HLRE B,A ;GET -LNTH + SUB A,B ;POINT TO 1ST DOPE WORD + MOVEI A,1(A) ;POINT TO 2ND DOPE WORD + CAIL A,STOSTR ; CHECK IN VECTOR SPACE + CAMLE A,GCSTOP + JRST VECTB1 ;BAD VECTOR, COMPLAIN + HLRE B,(A) ;GET LENGTH AND MARKING + IORM D,(A) ;MAKE SURE MARKED + JUMPL B,AMTKE + MOVEI EXTAC,(B) ; AMOUNT TO ALLOCATE + PUSHJ P,ALLOGC ;ALLOCATE ROOM + HRRM 0,(A) ; RELATIVIZE +AMTK1: AOS (P) ; A NON MARKED ITEM +AMTKE: POPJ P, ;AND RETURN + +GCRET1: ADJSP P,-1 ;FLUSH RETURN ADDRESS + JRST GCRET + + + +; MARK NON-GENERAL VECTORS + +NOTGEN: CAMN B,[GENERAL+] + JRST GENRAL ;YES, MARK AS A VECTOR + JUMPL B,SPECLS ; COMPLAIN IF A SPECIAL HACK + SUBI A,1(E) ;POINT TO TOP OF A UNIFORM VECTOR + HLRZS B ;ISOLATE TYPE + ANDI B,TYPMSK + MOVE EXTAC,B ; AND COPY IT + LSH B,1 ;FIND OUT WHERE IT WILL GO + HRRZ B,@TYPNT ;GET SAT IN B + ANDI B,SATMSK + HRRZ C,SMKTBS(B) ;POINT TO MARK SR + CAIN C,GCRET ;IF NOT A MARKED FROM GOODIE, IGNORE + JRST UMOVEC + MOVEI C,-1(A) ;POINT 1 PRIOR TO VECTOR START + PUSH P,E ;SAVE NUMBER OF ELEMENTS + PUSH P,EXTAC ;AND UNIFORM TYPE + +UNLOOP: MOVE B,(P) ;GET TYPE + MOVE A,1(C) ;AND GOODIE + TLO C,400000 ;CAN'T MUNG TYPE + PUSHJ P,MARK ;MARK THIS ONE + MOVEM A,1(C) ; LIST FIXUP + SOSE -1(P) ;COUNT + AOJA C,UNLOOP ;IF MORE, DO NEXT + + ADJSP P,-2 ;REMOVE STACK CRAP + JRST UMOVEC + + +SPECLS: FATAL AGC--UNRECOGNIZED SPECIAL VECTOR + ADJSP P,-4 ; REOVER + JRST AFIXUP + + + +; ROUTINE TO MARK THE GC-READ TABLE. MARKS THE ATOMS AT THE DOPE WORDS +; AND UPDATES PTR TO THE TABLE. + +GCRDMK: PUSH P,A ; SAVE PTR TO TOP + MOVEI 0,(FPTR) ; SAVE PTR TO INF + PUSH P,0 + PUSHJ P,GETLNT ; GET TO D.W. AND CHECK MARKING + JRST GCRDRL ; RELATIVIZE + PUSH P,A ; SAVE D.W POINTER + SUBI A,2 + MOVE B,ABOTN ; GET TOP OF ATOM TABLE + HRRZ 0,-2(P) + ADD B,0 ; GET BOTTOM OF ATOM TABLE +GCRD1: CAMG A,B ; DON'T SKIP IF DONE + JRST GCRD2 + HLRZ C,(A) ; GET MARKING + TRZN C,400000 ; SKIP IF MARKED + JRST GCRD3 + MOVEI E,(A) + SUBI A,(C) ; GO BACK ONE ATOM + PUSH P,B ; SAVE B + PUSH P,A ; SAVE POINTER + MOVEI C,-2(E) ; SET UP POINTER + MOVEI B,TATOM ; GO TO MARK + MOVE A,1(C) + PUSHJ P,MARK + MOVEM A,1(C) ; SMASH FIXED UP ATOM BACK IN + POP P,A + POP P,B + JRST GCRD1 +GCRD3: SUBI A,(C) ; TO NEXT ATOM + JRST GCRD1 +GCRD2: POP P,B ; GET PTR TO D.W. + POP P,C ; GET PTR TO INF + ADJSP P,-1 ; GET RID OF TOP + MOVE A,B + JRST ATMOVX ; RELATIVIZE AND LEAVE + +GCRDRL: POP P,A ; GET PTR TO D.W + ADJSP P,-2 ; GET RID OF TOP AND PTR TO INF + JRST ATMREL ; RELATAVIZE + + +;MARK RELATAVIZED GLOC HACKS + +LOCRMK: SKIPE GCHAIR + JRST GCRET +LOCRDP: PUSH P,C ; SAVE C + MOVEI C,-2(A) ; RELATAVIZED PTR TO ATOM + ADD C,GLTOP ; ADD GLOTOP TO GET TO ATOM + MOVEI B,TATOM ; ITS AN ATOM + SKIPL (C) + PUSHJ P,MARK1 + POP P,C ; RESTORE C + MOVE A,1(C) ; GET RELATIVIZATION + MOVEM A,(P) ; IT STAYS THE SAVE + JRST GCRET + +;MARK LOCID TYPE GOODIES + +LOCMK: HRRZ B,(C) ;GET TIME + JUMPE B,LOCMK1 ; SKIP LEGAL CHECK FOR GLOBAL + HRRZ 0,2(A) ; GET OTHER TIME + CAIE 0,(B) ; SAME? + SETZB A,(P) ; NO, SMASH LOCATIVE + JUMPE A,GCRET ; LEAVE IF DONE +LOCMK1: PUSH P,C + MOVEI B,TATOM ; MARK ATOM + MOVEI C,-2(A) ; POINT TO ATOM + MOVE E,(C) ; SEE IF BLOCK IS MARKED + TLNE E,400000 ; SKIP IF MARKED + JRST LOCMK2 ; SKIP OVER BLOCK + SKIPN GCHAIR ; DO NOT MARK IF NOT HAIRY (WILL BE MARKED) + PUSHJ P,MARK1 ; LET LOCATIVE SAVE THE ATOM +LOCMK2: POP P,C + HRRZ E,(C) ; TIME BACK + MOVEI B,TVEC ; ASSUME GLOBAL + SKIPE E + MOVEI B,TTP ; ITS LOCAL + PUSHJ P,MARK1 ; MARK IT + MOVEM A,(P) + JRST GCRET + + +; MARK ASSOCIATION BLOCKS + +ASMRK: PUSH P,A +ASMRK1: HRLI A,-ASOLNT ;LOOK LIKE A VECTOR POINTER + PUSHJ P,GETLNT ;GET LENGTH AND CHECK BOUNDS + JRST ASTREL ; ALREADY MARKED + MOVEI C,-ASOLNT-1(A) ;COPY POINTER + PUSHJ P,MARK2 ;MARK ITEM CELL + MOVEM A,1(C) + ADDI C,INDIC-ITEM ;POINT TO INDICATOR + PUSHJ P,MARK2 + MOVEM A,1(C) + ADDI C,VAL-INDIC + PUSHJ P,MARK2 + MOVEM A,1(C) + SKIPN GCHAIR ; IF NO HAIR, MARK ALL FRIENDS + JRST ASTREL + HRRZ A,NODPNT-VAL(C) ; NEXT + JUMPN A,ASMRK1 ; IF EXISTS, GO +ASTREL: POP P,A ; RESTORE PTR TO ASSOCIATION + MOVEI A,ASOLNT+1(A) ; POINT TO D.W. + SKIPN NODPNT-ASOLNT-1(A) ; SEE IF EMPTY NODPTR + JRST ASTX ; JUMP TO SEND OUT +ASTR1: HRRZ E,(A) ; RELATAVIZE + SUBI E,(A) + ADDM E,(P) + JRST GCRET ; EXIT +ASTX: HRRZ C,(A) ; GET PTR IN FRONTEIR + SUBI C,ASOLNT+1 ; ADJUST TO POINT TO BEGINNING + MOVE B,A + PUSHJ P,XBLTR + JRST ASTR1 + +;HERE WHEN A VECTOR POINTER IS BAD + +VECTB1:FATAL AGC--VECTOR POINTS OUTSIDE OF VECTOR SPACE + ADJSP P,-1 ; RECOVERY +AFIXUP: SETZM (P) ; CLOBBER SLOT + JRST GCRET ; CONTINUE + + +VECTB2: FATAL AGC--VECTOR POINTS OUT OF VECTOR SPACE + ADJSP P,-2 + JRST AFIXUP ; RECOVER + +PARERR: FATAL AGC--PAIR POINTS OUT OF PAIR SPACE + ADJSP P,-1 ; RECOVER + JRST AFIXUP + + + ; HERE TO MARK TEMPLATE DATA STRUCTURES + +TD.MRK: MOVEI 0,(FPTR) ; SAVE PTR TO INF + PUSH P,0 + HLRZ B,(A) ; GET REAL SPEC TYPE + ANDI B,37777 ; KILL SIGN BIT + MOVEI E,-NUMSAT-1(B) ; GET REL POINTER TO TABLE + HRLI E,(E) + ADD E,TD.AGC+1 + HRRZS C,A ; FLUSH COUNT AND SAVE + SKIPL E ; WITHIN BOUNDS + FATAL BAD SAT IN AGC + PUSHJ P,GETLNT ; GOODIE IS NOW MARKED + JRST TMPREL ; ALREADY MARKED + + SKIPE (E) + JRST USRAGC + SUB E,TD.AGC+1 ; POINT TO LENGTH + ADD E,TD.LNT+1 + XCT (E) ; RET # OF ELEMENTS IN B + + HLRZ D,B ; GET POSSIBLE "BASIC LENGTH" FOR RESTS + PUSH P,[0] ; TEMP USED IF RESTS EXIST + PUSH P,D + MOVEI B,(B) ; ZAP TO ONLY LENGTH + PUSH P,C ; SAVE POINTER TO TEMPLATE STRUCTURE + PUSH P,[0] ; HOME FOR VALUES + PUSH P,[0] ; SLOT FOR TEMP + PUSH P,B ; SAVE + SUB E,TD.LNT+1 + PUSH P,E ; SAVE FOR FINDING OTHER TABLES + JUMPE D,TD.MR2 ; NO REPEATING SEQ + ADD E,TD.GET+1 ; COMP LNTH OF REPEATING SEQ + HLRE E,(E) ; E ==> - LNTH OF TEMPLATE + ADDI E,(D) ; E ==> -LENGTH OF REP SEQ + MOVNS E + HRLM E,-5(P) ; SAVE IT AND BASIC + +TD.MR2: SKIPG D,-1(P) ; ANY LEFT? + JRST TD.MR1 + + MOVE E,TD.GET+1 + ADD E,(P) + MOVE E,(E) ; POINTER TO VECTOR IN E + MOVEM D,-6(P) ; SAVE ELMENT # + SKIPN B,-5(P) ; SKIP IF "RESTS" EXIST + SOJA D,TD.MR3 + + MOVEI 0,(B) ; BASIC LNT TO 0 + SUBI 0,(D) ; SEE IF PAST BASIC + JUMPGE 0,.-3 ; JUMP IF O.K. + MOVSS B ; REP LNT TO RH, BASIC TO LH + IDIVI 0,(B) ; A==> -WHICH REPEATER + MOVNS A + ADD A,-5(P) ; PLUS BASIC + ADDI A,1 ; AND FUDGE + MOVEM A,-6(P) ; SAVE FOR PUTTER + ADDI E,-1(A) ; POINT + SOJA D,.+2 + +TD.MR3: ADDI E,(D) ; POINT TO SLOT + XCT (E) ; GET THIS ELEMENT INTO A AND B + JFCL ; NO-OP FOR ANY CASE + MOVEM A,-3(P) ; SAVE TYPE FOR LATER PUT + MOVEM B,-2(P) + EXCH A,B ; REARRANGE + GETYP B,B + MOVEI C,-3(P) ; TELL OTHER GUYS THEY CANT DIRECTLY MUNG + MOVSI D,400000 ; RESET FOR MARK + PUSHJ P,MARK ; AND MARK THIS GUY (RET FIXED POINTER IN A) + MOVE C,-4(P) ; REGOBBLE POINTER TO TEMPLATE + MOVE E,TD.PUT+1 + MOVE B,-6(P) ; RESTORE COUNT + ADD E,(P) + MOVE E,(E) ; POINTER TO VECTOR IN E + ADDI E,(B)-1 ; POINT TO SLOT + MOVE B,-3(P) ; RESTORE TYPE WORD + EXCH A,B + SOS D,-1(P) ; GET ELEMENT # + XCT (E) ; SMASH IT BACK + FATAL TEMPLATE LOSSAGE + MOVE C,-4(P) ; RESTORE POINTER IN CASE MUNGED + JRST TD.MR2 + +TD.MR1: MOVE A,-8(P) ; PTR TO DOPE WORD + MOVE B,-7(P) ; RESTORE PTR TO FRONTEIR + ADJSP P,-7 ; CLEAN UP STACK +USRAG1: ADDI A,1 ; POINT TO SECOND D.W. + MOVSI D,400000 ; SET UP MARK BIT + MOVE B,A + HRRZ C,(A) ; DEST DW + DOMULT [HLRZ E,(C)] ; LENGTH + SUBI C,-1(E) + PUSHJ P,XBLTR +TMPREL: ADJSP P,-1 + HRRZ D,(A) + SUBI D,(A) + ADDM D,(P) + MOVSI D,400000 ; RESTORE MARK/UNMARK BIT + JRST GCRET + +USRAGC: HRRZ E,(E) ; MARK THE TEMPLATE + PUSHJ P,(E) + MOVE A,-1(P) ; POINTER TO D.W + MOVE B,(P) ; TOINTER TO FRONTIER + JRST USRAG1 + +; This phase attempts to remove any unwanted associations. The program +; loops through the structure marking values of associations. It can only +; stop when no new values (potential items and/or indicators) are marked. + +VALFLS: PUSH P,LPVP ; SAVE LPVP FOR LATER + PUSH P,[0] ; INDICATE WHETHER ANY ON THIS PASS + PUSH P,[0] ; OR THIS BUCKET +ASOMK1: MOVE A,GCASOV ; GET VECTOR POINTER + SETOM -1(P) ; INITIALIZE FLAG + +ASOM6: SKIPG C,(A) ; SKIP IF BUCKET TO BE SCANNED + JRST ASOM1 + SETOM (P) ; SAY BUCKET NOT CHANGED + +ASOM2: MOVEI EXTAC,(C) ; COPY POINTER + SKIPG ASOLNT+1(C) ; SKIP IF NOT ALREADY MARKED + JRST ASOM4 ; MARKED, GO ON + PUSHJ P,MARKQ ; SEE IF ITEM IS MARKED + JRST ASOM3 ; IT IS NOT, IGNORE IT + MOVEI EXTAC,(C) ; IN CASE CLOBBERED BY MARK2 + MOVEI C,INDIC(C) ; POINT TO INDICATOR SLOT + PUSHJ P,MARKQ + JRST ASOM3 ; NOT MARKED + + PUSH P,A ; HERE TO MARK VALUE + PUSH P,EXTAC + HLRE EXTAC,ASOLNT-INDIC+1(C) ; GET LENGTH + JUMPL EXTAC,.+3 ; SKIP IF MARKED + CAMGE C,VECBOT ; SKIP IF IN VECT SPACE + JRST ASOM20 + HRRM FPTR,ASOLNT-INDIC+1(C) ; PUT IN RELATIVISATION + MOVEI EXTAC,12 ; AMOUNT TO ALLOCATE IN INF + PUSHJ P,ALLOGC + HRRM 0,5(C) ; STICK IN RELOCATION + +ASOM20: PUSHJ P,MARK2 ; AND MARK + MOVEM A,1(C) ; LIST FIX UP + ADDI C,ITEM-INDIC ; POINT TO ITEM + PUSHJ P,MARK2 + MOVEM A,1(C) + ADDI C,VAL-ITEM ; POINT TO VALUE + PUSHJ P,MARK2 + MOVEM A,1(C) + IORM D,ASOLNT-VAL+1(C) ; MARK ASOC BLOCK + POP P,EXTAC + POP P,A + AOSA -1(P) ; INDICATE A MARK TOOK PLACE + +ASOM3: AOS (P) ; INDICATE AN UNMARKED IN THIS BUCKET +ASOM4: HRRZ C,ASOLNT-1(EXTAC) ; POINT TO NEXT IN BUCKET + JUMPN C,ASOM2 ; IF NOT EMPTY, CONTINUE + SKIPGE (P) ; SKIP IF ANY NOT MARKED + HRROS (A) ; MARK BUCKET AS NOT INTERESTING +ASOM1: AOBJN A,ASOM6 ; GO TO NEXT BUCKET + MOVE 0,.ATOM. + SETZM .ATOM. + JUMPN 0,VALFLA ; YES, CHECK VALUES +VALFL8: + +; NOW SEE WHICH CHANNELS STILL POINTED TO + +CHNFL3: MOVEI 0,N.CHNS-1 + MOVEI A,CHNL1 ; SLOTS + HRLI E,TCHAN ; TYPE HERE TOO + +CHNFL2: SKIPN B,1(A) + JRST CHNFL1 + HLRE C,B + SUBI B,(C) ; POINT TO DOPE + HLLM E,(A) ; PUT TYPE BACK + HRRE EXTAC,(A) ; SEE IF ALREADY MARKED + JUMPN EXTAC,CHNFL1 + SKIPGE 1(B) + JRST CHNFL8 + HLLOS (A) ; MARK AS A LOSER + SETZM -1(P) + JRST CHNFL1 +CHNFL8: MOVEI EXTAC,1 ; MARK A GOOD CHANNEL + HRRM EXTAC,(A) +CHNFL1: ADDI A,2 + SOJG 0,CHNFL2 + + SKIPE GCHAIR ; IF NOT HAIRY CASE + POPJ P, ; LEAVE + + SKIPL -1(P) ; SKIP IF NOTHING NEW MARKED + JRST ASOMK1 + + ADJSP P,-2 ; REMOVE FLAGS + + + +; HERE TO REEMOVE UNUSED ASSOCIATIONS + + MOVE A,GCASOV ; GET ASOVEC BACK FOR FLUSHES + +ASOFL1: SKIPN C,(A) ; SKIP IF BUCKET NOT EMPTY + JRST ASOFL2 ; EMPTY BUCKET, IGNORE + HRRZS (A) ; UNDO DAMAGE OF BEFORE + +ASOFL5: SKIPGE ASOLNT+1(C) ; SKIP IF UNMARKED + JRST ASOFL6 ; MARKED, DONT FLUSH + + HRRZ B,ASOLNT-1(C) ; GET FORWARD POINTER + HLRZ E,ASOLNT-1(C) ; AND BACK POINTER + JUMPN E,ASOFL4 ; JUMP IF NO BACK POINTER (FIRST IN BUCKET) + HRRZM B,(A) ; FIX BUCKET + JRST .+2 + +ASOFL4: HRRM B,ASOLNT-1(E) ; FIX UP PREVIOUS + JUMPE B,.+2 ; JUMP IF NO NEXT POINTER + HRLM E,ASOLNT-1(B) ; FIX NEXT'S BACK POINTER + HRRZ B,NODPNT(C) ; SPLICE OUT THRAD + HLRZ E,NODPNT(C) + SKIPE E + HRRM B,NODPNT(E) + SKIPE B + HRLM E,NODPNT(B) + +ASOFL3: HRRZ C,ASOLNT-1(C) ; GO TO NEXT + JUMPN C,ASOFL5 +ASOFL2: AOBJN A,ASOFL1 + + + +; NOW CLOBBER UNMARKED LOCAL NAD GLOBAL VALUES + + MOVE A,GCGBSP ; GET GLOBAL PDL + +GLOFLS: SKIPGE (A) ; SKIP IF NOT ALREADY MARKED + JRST SVDCL + MOVSI B,-3 + PUSHJ P,ZERSLT ; CLOBBER THE SLOT + HLLZS (A) +SVDCL: ANDCAM D,(A) ; UNMARK + ADD A,[4,,4] + JUMPL A,GLOFLS ; MORE?, KEEP LOOPING + + MOVEM LPVP,(P) +LOCFL1: HRRZ A,(LPVP) ; NOW CLOBBER LOCAL SLOTS + HRRZ C,2(LPVP) + MOVEI LPVP,(C) + JUMPE A,LOCFL2 ; NONE TO FLUSH + +LOCFLS: SKIPGE (A) ; MARKDE? + JRST .+3 + MOVSI B,-5 + PUSHJ P,ZERSLT + ANDCAM D,(A) ;UNMARK + HRRZ A,(A) ; GO ON + JUMPN A,LOCFLS +LOCFL2: JUMPN LPVP,LOCFL1 ; JUMP IF MORE PROCESS + +; AT THIS POINT THE LOCALS ARE FINALLY SENT OUT. +; THIS ROUTINE UPDATES THE THIS-PROCESS BINDING. +; IT FIXES UP THE SP-CHAIN AND IT +; SENDS OUT THE ATOMS. + +LOCFL3: MOVE C,(P) + MOVEI B,TATOM ; MARK THE BINDING TO THIS PROCESS + PUSHJ P,MARK1 ; MARK THE ATOM + MOVEM A,1(C) ; NEW HOME + MOVEI C,2(C) ; MARK VALUE + MOVEI B,TPVP ; IT IS A PROCESS VECTOR POINTER + PUSHJ P,MARK1 ; MARK IT + MOVEM A,1(C) + POP P,R +NEXPRO: MOVEI 0,TPVP ; FIX UP SLOT + HLRZ A,2(R) ; GET PTR TO NEXT PROCESS + HRLM 0,2(R) + HRRZ E,(A) ; ADRESS IN INF + HRRZ B,(A) ; CALCULATE RELOCATION + SUB B,A + PUSH P,B + HRRZ EXTAC,A ; CALCULATE START OF TP IN EXTAC + HLRZ B,(A) ; ADJUST INF PTR + TRZ B,400000 + SUBI EXTAC,-1(B) + LDB M,[TOPGRO,,-1(A)] ; CALCULATE TOP GROWTH + TRZE M,400 ; FUDGE SIGN + MOVNS M + ASH M,6 + ADD B,M ; FIX UP LENGTH + EXCH M,(P) + SUBM M,(P) ; FIX RELOCATION TO TAKE INTO ACCOUNT + ; CHANGE IN LENGTH + MOVE M,R ; GET A COPY OF R +NEXP1: HRRZ C,(M) ; GET PTR TO NEXT IN CHAIN + JUMPE C,NEXP2 ; EXIT IF END OF CHAIN + MOVE 0,C ; GET COPY OF CHAIN PTR TO UPDATE + ADD 0,(P) ; UPDATE + HRRM 0,(M) ; PUT IN + MOVE M,C ; NEXT + JRST NEXP1 +NEXP2: ADJSP P,-1 ; CLEAN UP STACK + SUBI E,-1(B) + MOVEI A,6(R) ; POINT AFTER THE BINDING + MOVE 0,EXTAC ; CALCULATE # OF WORDS TO SEND OUT + SUBM A,0 + HRRZ A,EXTAC + MOVE B,E + HRLI B,GCSEG + DOMULT [XBLT 0,] + HRRZS R,2(R) ; GET THE NEXT PROCESS + JUMPE R,.+3 + PUSH P,R + JRST LOCFL3 + MOVE A,GCGBSP ; PTR TO GLOBAL STACK + PUSHJ P,SPCOUT ; SEND IT OUT + MOVE A,GCASOV + PUSHJ P,SPCOUT ; SEND IT OUT + POPJ P, + +; THIS ROUTINE MARKS ALL THE CHANNELS +; IT THEN SENDS OUT A COPY OF THE TVP + +CHFIX: MOVEI 0,N.CHNS-1 + MOVEI A,CHNL1 ; SLOTS + HRLI E,TCHAN ; TYPE HERE TOO + +DHNFL2: SKIPN B,1(A) + JRST DHNFL1 + MOVEI C,(A) ; MARK THE CHANNEL + PUSH P,0 ; SAVE 0 + PUSH P,A ; SAVE A + PUSHJ P,MARK2 + MOVEM A,1(C) ; ADJUST PTR + POP P,A ; RESTORE A + POP P,0 ; RESTORE +DHNFL1: ADDI A,2 + SOJG 0,DHNFL2 + POPJ P, + + +; ROUTINE TO SEND OUT STUFF - SPCOUX--DONT LOOK AT GROWTH +; SPCOUT--LOOK AT GROWTH + +SPCOUX: TDZA C,C ; ZERO C AS FLAG + +SPCOUT: MOVEI C,1 + HLRE B,A + SUB A,B + MOVEI A,1(A) ; POINT TO DOPE WORD + CAMGE A,GCSBOT + POPJ P, + HLLZ 0,-1(A) ; MODIFY DOPE WORD AND PLACE IN INF + TLO 0,.VECT. + HRRZ B,(A) ; DESTINATION OF DOPEWORDS (SORT OF) + HRLI B,GCSEG ; MAKE INTO CORRECT KIND OF ADDR + DOMULT [MOVEM 0,-1(B)] + JUMPE C,SPCOUY ; JUMP IF NO GROWTH STUFF + LDB C,[BOTGRO,,-1(A)] + TRZE C,400 + MOVNS C + ASH C,6 +SPCOUY: DOMULT [HLRZ 0,(B)] + ADD 0,C ; COMPENSATE FOR SHRINKAGE + SUBI 0,1 ; DONT RESEND DW + SUB A,0 + SUB B,0 + DOMULT [XBLT 0,] ; MOVE VECTOR TO OTHER IMAGE + POPJ P, ;RETURN + +ASOFL6: HLRZ E,ASOLNT-1(C) ; SEE IF FIRST IN BUCKET + JUMPN E,ASOFL3 ; IF NOT CONTINUE + HRRZ E,ASOLNT+1(C) ; GET PTR FROM DOPE WORD + SUBI E,ASOLNT+1 ; ADJUST TO POINT TO BEGINNING OF ALSSOCIATION + HRRZM E,(A) ; SMASH IT IN + JRST ASOFL3 + + +MARK23: PUSH P,A ; SAVE BUCKET POINTER + PUSH P,EXTAC + PUSHJ P,MARK2 + MOVEM A,1(C) + POP P,EXTAC + POP P,A + AOS -2(P) ; MARKING HAS OCCURRED + IORM D,ASOLNT+1(C) ; MARK IT + JRST MKD + + ; CHANNEL FLUSHER FOR NON HAIRY GC + +CHNFLS: PUSH P,[-1] + SETOM (P) ; RESET FOR RETRY + PUSHJ P,CHNFL3 + SKIPL (P) + JRST .-3 ; REDO + ADJSP P,-1 + POPJ P, + +; VALUE FLUSHING PHASE, HACKS BOTTOM OF TP AND GLOBAL SP + +VALFLA: MOVE C,GCGBSP ; GET POINTER TO GLOBAL STACK +VALFL1: SKIPL (C) ; SKIP IF NOT MARKED + PUSHJ P,MARKQ ; SEE IF ATOM IS MARKED + JRST VALFL2 + PUSH P,C + MOVEI B,TATOM ; UPDATE ATOM SLOT + PUSHJ P,MARK1 + MOVEM A,1(C) + IORM D,(C) + AOS -2(P) ; INDICATE MARK OCCURRED + HRRZ B,(C) ; GET POSSIBLE GDECL + JUMPE B,VLFL10 ; NONE + CAIN B,-1 ; MAINFIFEST + JRST VLFL10 + MOVEI A,(B) + MOVEI B,TLIST + MOVEI C,0 + PUSHJ P,MARK ; MARK IT + MOVE C,(P) ; POINT + HRRM A,(C) ; CLOBBER UPDATE IN +VLFL10: ADD C,[2,,2] ; BUMP TO VALUE + PUSHJ P,MARK2 ; MARK VALUE + MOVEM A,1(C) + POP P,C +VALFL2: ADD C,[4,,4] + JUMPL C,VALFL1 ; JUMP IF MORE + + HRLM LPVP,(P) ; SAVE POINTER +VALFL7: MOVEI C,(LPVP) + MOVEI LPVP,0 +VALFL6: HRRM C,(P) + +VALFL5: HRRZ C,(C) ; CHAIN + JUMPE C,VALFL4 + MOVEI B,TATOM ; TREAT LIKE AN ATOM + SKIPL (C) ; MARKED? + PUSHJ P,MARKQ1 ; NO, SEE + JRST VALFL5 ; LOOP + AOS -1(P) ; MARK WILL OCCUR + MOVEI B,TATOM ; RELATAVIZE + PUSHJ P,MARK1 + MOVEM A,1(C) + IORM D,(C) + ADD C,[2,,2] ; POINT TO VALUE + PUSHJ P,MARK2 ; MARK VALUE + MOVEM A,1(C) + SUBI C,2 + JRST VALFL5 + +VALFL4: HRRZ C,(P) ; GET SAVED LPVP + MOVEI A,(C) + HRRZ C,2(C) ; POINT TO NEXT + JUMPN C,VALFL6 + JUMPE LPVP,VALFL9 + + HRRM LPVP,2(A) ; NEW PROCESS WAS MARKED + JRST VALFL7 + +ZERSLT: HRRI B,(A) ; COPY POINTER + SETZM 1(B) + AOBJN B,.-1 + POPJ P, + +VALFL9: HLRZ LPVP,(P) ; RESTORE CHAIN + JRST VALFL8 + + ;SUBROUTINE TO SEE IF A GOODIE IS MARKED +;RECEIVES POINTER IN C +;SKIPS IF MARKED NOT OTHERWISE + +MARKQ: HLRZ B,(C) ;TYPE TO B +MARKQ1: MOVE E,1(C) ;DATUM TO C + MOVEI 0,(E) + CAIL 0,@PURBOT ; DONT CHACK PURE + JRST MKD ; ALWAYS MARKED + ANDI B,TYPMSK ; FLUSH MONITORS + LSH B,1 + HRRZ B,@TYPNT ;GOBBLE SAT + ANDI B,SATMSK + CAIG B,NUMSAT ; SKIP FOR TEMPLATE + JRST @MQTBS(B) ;DISPATCH + ANDI E,-1 ; FLUSH REST HACKS + JRST VECMQ + + +MQTBS: + +OFFSET 0 + +DISTB2 DUM3,MKD,[[S2WORD,PAIRMQ],[S2DEFR,PAIRMQ],[SNWORD,VECMQ],[S2NWORD,VECMQ] +[STPSTK,VECMQ],[SARGS,ARGMQ],[SPSTK,VECMQ],[SFRAME,FRMQ],[SLOCID,LOCMQ] +[SATOM,ATMMQ],[SPVP,VECMQ],[SCHSTR,BYTMQ],[SLOCA,ARGMQ],[SLOCU,VECMQ] +[SLOCV,VECMQ],[SLOCS,BYTMQ],[SLOCN,ASMQ],[SASOC,ASMQ],[SLOCL,PAIRMQ],[SGATOM,ATMMQ] +[SBYTE,BYTMQ],[SLOCB,BYTMQ],[SDEFQ,PAIRMQ],[SOFFS,OFFSMQ]] + +OFFSET OFFS + +PAIRMQ: JUMPE E,MKD ; NIL ALWAYS MARKED + SKIPL (E) ; SKIP IF MARKED + POPJ P, +ARGMQ: +MKD: AOS (P) + POPJ P, + +BYTMQ: PUSH P,A ; SAVE A + PUSHJ P,BYTDOP ; GET PTR TO DOPE WORD + MOVE E,A ; COPY POINTER + POP P,A ; RESTORE A + SKIPGE (E) ; SKIP IF NOT MARKED + AOS (P) + POPJ P, ; EXIT + +FRMQ: HRRZ E,(C) ; POINT TO PV DOPE WORD + SOJA E,VECMQ1 + +ATMMQ: CAML 0,GCSBOT ; ALWAYS KEEP FROZEN ATOMS + JRST VECMQ + AOS (P) + POPJ P, + +VECMQ: HLRE 0,E ;GET LENGTH + SUB E,0 ;POINT TO DOPE WORDS + +VECMQ1: SKIPGE 1(E) ;SKIP IF NOT MARKED + AOS (P) ;MARKED, CAUSE SKIP RETURN + POPJ P, + +ASMQ: SUBI E,ASOLNT + JRST VECMQ1 + +LOCMQ: HRRZ 0,(C) ; GET TIME + JUMPE 0,VECMQ ; GLOBAL, LIKE VECTOR + HLRE 0,E ; FIND DOPE + SUB E,0 + MOVEI E,1(E) ; POINT TO LAST DOPE + CAMN E,TPGROW ; GROWING? + SOJA E,VECMQ1 ; YES, CHECK + ADDI E,PDLBUF ; FUDGE + MOVSI 0,-PDLBUF + ADDM 0,1(C) + SOJA E,VECMQ1 + +OFFSMQ: HLRZS E ; POINT TO LIST STRUCTURE + SKIPGE (E) ; MARKED? + AOS (P) ; YES + POPJ P, + + ; SUBROUTINE TO UPDATE ASSOCIATIONS AND MOVE THEM INTO THE INF + +ASSOUP: MOVE A,GCNOD ; RECOVER PTR TO START OF CHAIN +ASSOP1: HRRZ B,NODPNT(A) + PUSH P,B ; SAVE NEXT ON CHAIN + PUSH P,A ; SAVE IT + HRRZ B,ASOLNT-1(A) ;POINT TO NEXT + JUMPE B,ASOUP1 + HRRZ C,ASOLNT+1(B) ;AND GET ITS RELOC IN C + SUBI C,ASOLNT+1(B) ; RELATIVIZE + ADDM C,ASOLNT-1(A) ;C NOW HAS UPDATED POINTER +ASOUP1: HLRZ B,ASOLNT-1(A) ;GET PREV BLOCK POINTER + JUMPE B,ASOUP2 + HRRZ EXTAC,ASOLNT+1(B) ;AND ITS RELOCATION + SUBI EXTAC,ASOLNT+1(B) ; RELATIVIZE + MOVSI EXTAC,(EXTAC) + ADDM EXTAC,ASOLNT-1(A) ;RELOCATE +ASOUP2: HRRZ B,NODPNT(A) ;UPDATE NODE CHAIN + JUMPE B,ASOUP4 + HRRZ C,ASOLNT+1(B) ;GET RELOC + SUBI C,ASOLNT+1(B) ; RELATIVIZE + ADDM C,NODPNT(A) ;AND UPDATE +ASOUP4: HLRZ B,NODPNT(A) ;GET PREV POINTER + JUMPE B,ASOUP5 + HRRZ EXTAC,ASOLNT+1(B) ;RELOC + SUBI EXTAC,ASOLNT+1(B) + MOVSI EXTAC,(EXTAC) + ADDM EXTAC,NODPNT(A) +ASOUP5: POP P,A ; RECOVER PTR TO DOPE WORD + MOVEI A,ASOLNT(A) + PUSHJ P,SPCOUX + POP P,A ; RECOVER PTR TO ASSOCIATION + JUMPN A,ASSOP1 ; IF NOT ZERO CONTINUP + POPJ P, ; DONE + + +; HERE TO CLEAN UP ATOM HASH TABLE + +ATCLEA: MOVE A,GCHSHT ; GET TABLE POINTER + +ATCLE1: MOVEI B,0 + SKIPE C,(A) ; GET NEXT + JRST ATCLE2 ; GOT ONE + +ATCLE3: PUSHJ P,OUTATM + AOBJN A,ATCLE1 + + MOVE A,GCHSHT ; MOVE OUT TABLE + PUSHJ P,SPCOUT + POPJ P, + +; HAVE AN ATOM IN C + +ATCLE2: MOVEI B,0 + +ATCLE5: CAIL C,HIBOT + JRST ATCLE3 + CAMG C,VECBOT ; FROZEN ATOMS ALWAYS MARKED + JRST .+3 + SKIPL 1(C) ; SKIP IF ATOM MARKED + JRST ATCLE6 + + HRRZ 0,1(C) ; GET DESTINATION + CAIN 0,-1 ; FROZEN/MAGIC ATOM + MOVEI 0,1(C) ; USE CURRENT POSN + SUBI 0,1 ; POINT TO CORRECT DOPE + JUMPN B,ATCLE7 ; JUMP IF GOES INTO ATOM + + HRRZM 0,(A) ; INTO HASH TABLE + JRST ATCLE8 + +ATCLE7: HRLM 0,2(B) ; INTO PREV ATOM + PUSHJ P,OUTATM + +ATCLE8: HLRZ B,1(C) + ANDI B,377777 ; KILL MARK BIT + SUBI B,2 + HRLI B,(B) + SUBM C,B + HLRZ C,2(B) + JUMPE C,ATCLE3 ; DONE WITH BUCKET + JRST ATCLE5 + +; HERE TO PASS OVER LOST ATOM + +ATCLE6: HLRZ EXTAC,1(C) ; FIND NEXT ATOM + SUBI C,-2(EXTAC) + HLRZ C,2(C) + JUMPE B,ATCLE9 + HRLM C,2(B) + JRST .+2 +ATCLE9: HRRZM C,(A) + JUMPE C,ATCLE3 + JRST ATCLE5 + +OUTATM: JUMPE B,CPOPJ + PUSH P,A + PUSH P,C + HLRE A,B + SUBM B,A + ANDI A,-1 + PUSHJ P,SPCOUX + POP P,C + POP P,A ; RECOVER PTR TO ASSOCIATION + POPJ P, + + +VCMLOS: FATAL AGC--VECTOR WITH ZERO IN DOPE WORD LENGTH + + +; THESE ARE THE MESSAGES INDICATING THE CAUSE OF THE GC + +MSGGCT: [ASCIZ /USER CALLED- /] + [ASCIZ /FREE STORAGE- /] + [ASCIZ /TP-STACK- /] + [ASCIZ /TOP-LEVEL LOCALS- /] + [ASCIZ /GLOBAL VALUES- /] + [ASCIZ /TYPES- /] + [ASCIZ /STATIONARY IMPURE STORAGE- /] + [ASCIZ /P-STACK /] + [ASCIZ /BOTH STACKS BLOWN- /] + [ASCIZ /PURE STORAGE- /] + [ASCIZ /GC-RCALL- /] + +; THESE ARE MESSAGES INDICATING WHO CAUSED THE GC + +GCPAT: SPBLOK 100 +EGCPAT: -1 +%XXBLT: 020000,, + +MSGGFT: [ASCIZ /GC-READ /] + [ASCIZ /BLOAT /] + [ASCIZ /GROW /] + [ASCIZ /LIST /] + [ASCIZ /VECTOR /] + [ASCIZ /SET /] + [ASCIZ /SETG /] + [ASCIZ /FREEZE /] + [ASCIZ /PURE-PAGE LOADER /] + [ASCIZ /GC /] + [ASCIZ /INTERRUPT-HANDLER /] + [ASCIZ /NEWTYPE /] + [ASCIZ /PURIFY /] + + +.GLOBAL GCNO,BSTGC,BSTAT,NOWFRE,CURFRE,MAXFRE,USEFRE,NOWTP,CURTP,CTPMX,NOWLFL +.GLOBAL CURLVL,NOWGVL,CURGVL,NOWTYP,CURTYP,NOWSTO,CURSTO,CURMAX,NOWP,CURP,CPMX +.GLOBAL GCCAUS,GCCALL,LVLINC,GVLINC,TYPIC,STORIC,RCL,RCLV,GCDANG,GETNUM,RPTOP,CORTOP +.GLOBAL TPGROW,PPGROW,PGROW,PMAIN,PGOOD,PMAX,TPGOOD,TPMIN,TPMAX,RFRETP,TYPTAB +.GLOBAL NNPRI,NNSAT,TYPSAV,BUFGC,GCTIM,GPURFL,GCDFLG,DUMFLG +.GLOBAL TPBINC,GBLINC,TYPINC,CONADJ,OGCSTP,ABOTN,MAXLEN +.GLOBAL PURMIN,GCMONF,.LIST.,FPAG,PMIN,GLBINC,INCORF,PURCOR,GCHAIR + + +;LOCAL VARIABLES + +OFFSET 0 + +IMPURE +; LOCACTIONS USED BY THE PAGE HACKER + + + +;VARIABLES WHICH DETERMIN WHEN MUDDLE WILL ASK FOR MORE CORE, +;AND WHEN IT WILL GET UNHAPPY + +;IN GC FLAG + +GCHSHT: 0 ; SAVED ATOM TABLE +PURSVT: 0 ; SAVED PURVEC TABLE +GLTOP: 0 ; SAVE GLOTOP +GCNOD: 0 ; PTR TO START OF ASSOCIATION CHAIN +GCGBSP: 0 ; SAVED GLOBAL SP +GCASOV: 0 ; SAVED PTR TO ASSOCIATION VECTOR +GCATM: 0 ; PTR TO IMQUOT THIS-PROCESS +NPARBO: 0 ; SAVED PARBOT + + +; CONSTANTS FOR DUMPER,READER AND PURIFYER + +GENFLG: 0 +.ATOM.: 0 + + +; VARIABLE USED BY MARK SWEEP GARBAGE COLLECTOR + + +PURE + +OFFSET OFFS + +CONSTANTS + +HERE +DEFINE HERE G00002,G00003 +G00002!G00003!TERMIN + +CONSTANTS + +OFFSET 0 + +ZZ==$.+1777 + +.LOP ANDCM ZZ 1777 + +ZZ1==.LVAL1 + +LOC ZZ1 + + +OFFSET OFFS + +MRKPD: SPBLOK 1777 +ENDPDL: -1 + +MRKPDL=MRKPD-1 + +SENDGC: + +OFFSET 0 + +ZZ2==SENDGC-AGCLD +.LOP ZZ2 <,-10.> +SECLEN==.LVAL1 + +.LOP SECLEN <,10.> +RSECLE==.LVAL1 + +.LOP AGCLD <,-10.> +PAGESC==.LVAL1 + +OFFSET 0 + +LOC GCST +.LPUR==$. + +END + diff --git a//uuoh.184 b//uuoh.184 new file mode 100644 index 0000000..845b9d5 --- /dev/null +++ b//uuoh.184 @@ -0,0 +1,1096 @@ +TITLE UUO HANDLER FOR MUDDLE AND HYDRA +RELOCATABLE +.INSRT MUDDLE > + +SYSQ +XJRST=JRST 5, +;XBLT=123000,,[020000,,0] + +IFE ITS,.INSRT STENEX > + +;GLOBALS FOR THIS PROGRAM + +.GLOBAL BACKTR,PRINT,PDLBUF,TPGROW,SPECSTO,TIMOUT,AGC,VECBOT,VECTOP +.GLOBAL BCKTRK,TPOVFL,.MONWR,.MONRD,.MONEX,MAKACT,IGVAL,ILVAL,BFRAME +.GLOBAL FLGSET,QMPOPJ,SAVM,STBL,FMPOPJ,PVSTOR,SPSTOR,POPUNW,RMCALL +.GLOBAL PURTOP,PURBOT,PLOAD,PURVEC,STOSTR,MSGTYP,UUOH,ILLUUO,RSTACK,IBLOCK +.GLOBAL NFPOPJ,NSPOPJ,MULTSG,MLTUUP +.GLOBAL SHRRM,SHRLM,SMOVEM,SSETZM,SXBLT,SHLRZ +.GLOBAL C%11,C%22,C%33,C%44,C%55,C%66,C%0,C%1,C%2,C%3,C%M1,C%M2,C%M10 +.GLOBAL C%M20,C%M30,C%M40,C%M60 + +;SETUP UUO DISPATCH TABLE HERE +UUOLOC==40 +F==PVP +G==F+1 + +UUOTBL: ILLUUO + +IRP UUOS,,[[DP,DODP],[.MCALL,DMCALL],[.ACALL,DACALL],[.ECALL,DECALL],[.SAVAC,DSAVAC] +[.FATAL,DFATAL],[.ERRUU,DOERR],[.POPUN,DPOPUN],[.LSAVA,DLSAVA] +[SHRRM,DHRRM],[SHRLM,DHRLM],[SXBLT,DXBLT],[SMOVEM,DMOVEM],[SHLRZ,DHLRZ],[SSETZM,DSETZM],[SMOVE,DMOVE]] +UUFOO==.IRPCNT+1 +IRP UUO,DISP,[UUOS] +.GLOBAL UUO +UUO=UUFOO_33 +SETZ DISP +.ISTOP +TERMIN +TERMIN + +;SINCE CHECKING HAPPENS IN UUOH, NO LONGER NEED TABLE FULL OF ILLUUOS +;REPEAT 100-UUFOO,[ILLUUO +;] + + +RMT [ +IMPURE + +UUOH: +LOC 41 + JSR UUOH +LOC UUOH + 0 +IFE ITS,[ + JRST UUOPUR +PURE +UUOPUR: +] + MOVEM C,SAVEC +ALLUUO: LDB C,[331100,,UUOLOC] ;GET OPCODE + SKIPE C + CAILE C,UUFOO + CAIA ;SKIP IF ILLEGAL UUO + JRST @UUOTBL(C) ;DISPATCH TO SUITABLE HANDLER +IFN ITS,[ + .SUSET [.RJPC,,SAVJPC] +] + MOVE C,SAVEC +ILLUUO: FATAL ILLEGAL UUO +; THIS WILL LEAVE .JPC FOR DEBUGGING AND SUCH +IFE ITS,[ +IMPURE +] +SAVJPC: 0 ; SAVE JPC IN CASE OF LOSS +SAVEC: 0 ; USED TO SAVE WORKING AC +NOLINK: 0 +IFE ITS,[ +MLTUUP: 0 ; HOLDS UUO (SWAPPED SORT OF) +MLTPC: 0 ; 23 BIT PC +MLTEA: 0 ; EFF ADDR OF UUO INSTRUCTION +MLTUUH: FSEG,,MLTUOP ; RUN IN "FSEG" +] +PURE +] + +;SEPARATION OF PURE FROM IMPURE CODE HERE + +;UUOPUR: MOVEM C,SAVEC ; SAVE AC +; LDB C,[330900,,UUOLOC] +; JRST @UUOTBL(C) ;DISPATCH BASED ON THE UUO + +; HANDLER FOR UUOS IN MULTI SEG MODE +IFE ITS,[ +MLTUOP: MOVEM C,SAVEC + MOVE C,MLTPC + MOVEM C,UUOH ; SO MANY THINGS WIN IMMEDIATE + HRLZ C,MLTUUP + TLZ C,37 + HRR C,MLTEA + MOVEM C,UUOLOC ; GET INS CODE + JRST ALLUUO +] + + + ;CALL HANDLER + +IMQUOTE CALLER +CALLER: + +DMCALL": + SETZB D,R ; FLAG NOT ENTRY CALL + LDB C,[270400,,UUOLOC] ; GET AC FIELD OF UUO +COMCAL: LSH C,1 ; TIMES 2 + MOVN AB,C ; GET NEGATED # OF ARGS + HRLI C,(C) ; TO BOTH SIDES + SUBM TP,C ; NOW HAVE TP TO SAVE + MOVEM C,TPSAV(TB) ; SAVE IT + MOVSI AB,(AB) ; BUILD THE AB POINTER + HRRI AB,1(C) ; POINT TO ARGS + HRRZ C,UUOH ; GET PC OF CALL + CAIL C,HIBOT ; SKIP IF NOT IN GC SPACE + JRST .+3 + SUBI C,(M) ; RELATIVIZE THE PC + TLOA C,400000+M ; FOR RETURNER TO WIN + TLO C,400000 + SKIPE SAVM + MOVEI C,(C) + MOVEM C,PCSAV(TB) + MOVE SP,SPSTOR+1 + MOVEM SP,SPSAV(TB) ; SAVE BINDING GOODIE + MOVSI C,TENTRY ; SET UP ENTRY WORD + HRR C,UUOLOC ; POINT TO CALLED SR + ADD TP,[FRAMLN,,FRAMLN] ; ALLOCATE NEW FRAME + JUMPGE TP,TPLOSE +CALDON: MOVEM C,FSAV+1(TP) ; CLOBBER THE FRAME + MOVEM TB,OTBSAV+1(TP) + MOVEM AB,ABSAV+1(TP) ; FRAME BUILT + MOVEM P,PSAV(TB) + HRRI TB,(TP) ; SETUP NEW TB + MOVEI C,(C) + SETZB M,SAVM ; ZERO M AND SAVM FOR GC WINNAGE + CAILE C,HIBOT ; SKIP IF RSUBR + JRST CALLS + GETYP A,(C) ; GET CONTENTS OF SLOT + JUMPN D,EVCALL ; EVAL CALLING ENTRY ? + CAIE A,TRSUBR ; RSUBR CALLING RSUBR ? + JRST RCHECK ; NO + MOVE R,(C)+1 ; YES, SETUP R +CALLR0: HRRM R,FSAV+1(TB) ; FIXUP THE PROPER FSAV + +CALLR1: SKIPL M,(R)+1 ; SETUP M + JRST SETUPM ; JUMP IF A PURE RSUBR IN QUESTION +IFN ITS, AOBJP TB,.+1 ; GO TO CALLED RSUBR +IFE ITS,[ + AOBJP TB,MCHK +] +MCHK1: INTGO ; CHECK FOR INTERRUPTS + JRST (M) + +IFE ITS,[ +MCHK: SKIPE MULTSG + HRLI TB,400000 ; KEEP TB NEGATIVE + JRST MCHK1 +] +CALLS: +IFN ITS, AOBJP TB,.+1 ; GO TO CALLED SUBR +IFE ITS, AOBJP TB,MCHK3 +MCHK4: INTGO ; CHECK FOR INTERRUPTS +IFE ITS, SKIPN MULTSG + JRST @C ; WILL DO "RIGHT THING IN MULTI SEG" +IFE ITS,[ + HRLI C,FSEG + JRST (C) + + +MCHK3: SKIPE MULTSG + HRLI TB,400000 ; KEEP TB NEGATIVE + JRST MCHK4 +] + + + +; HERE TO HANDLE A PURE RSUBR (LOAD IF PUNTED OR OTHERWISE FLUSHED) + +SETUPM: MOVEI C,0 ; OFFSET (FOR MAIN ENTRIES) +STUPM1: MOVEI D,(M) ; GET OFFSET INTO CODE + HLRS M ; GET VECTOR OFFSET IN BOTH HALVES + ADD M,PURVEC+1 ; GET IT + SKIPL M + FATAL LOSING PURE RSUBR POINTER + HLLM TB,2(M) ; MARK FOR LRU ALGORITHM + SKIPN M,1(M) ; POINT TO CORE IF LOADED + AOJA TB,STUPM2 ; GO LOAD IT +STUPM3: ADDI M,(D) ; POINT TO REAL THING +IFN ITS,[ + HRLI C,M + AOBJP TB,MCHK7 + INTGO +MCHK7: JRST @C +] +IFE ITS,[ + AOBJP TB,MCHK7 +MCHK8: INTGO + ADD C,M ; POINT TO START PC + SKIPE MULTSG + TLZ C,777400 ; KILL COUNT + + SKIPN MULTSG + JRST (C) + MOVEI B,0 ; AVOID FLAG MUNG + XJRST B ; EXTENDED JRST HACK + +MCHK7: SKIPE MULTSG + HRLI TB,400000 ; KEEP TB NEGATIVE + JRST MCHK8 +] + +STUPM2: HLRZ A,1(R) ; SET UP TO CALL LOADER + PUSH P,D + PUSH P,C + PUSHJ P,PLOAD ; LOAD IT + JRST PCANT1 + POP P,C + POP P,D + MOVE M,B ; GET LOCATION + SOJA TB,STUPM3 + +RCHECK: CAIN A,TPCODE ; PURE RSUBR? + JRST .+3 + CAIE A,TCODE ; EVALUATOR CALLING RSUBR ? + JRST SCHECK ; NO + MOVS R,(C) ; YES, SETUP R + HRRI R,(C) + JRST CALLR1 ; GO FINISH THE RSUBR CALL + + +SCHECK: CAIE A,TSUBR ; RSUBR CALLING SUBR AS REFERENCE ? + CAIN A,TFSUBR + SKIPA C,(C)+1 ; SKIP AND GET ROUTINE'S ADDRESS + JRST ECHECK + HRRM C,FSAV+1(TB) ; FIXUP THE PROPER FSAV +IFE ITS, SKIPN MULTSG + JRST CALLS ; GO FINISH THE SUBR CALL +IFE ITS,[ + HRLI C,FSEG ; FOR SEG #1 + JRST CALLS +] +ECHECK: CAIE A,TENTER ; SKIP IF SUB ENTRY OF RSUBR + JRST ACHECK ; COULD BE EVAL CALLING ONE + MOVE C,1(C) ; POINT TO SUB ENTRY BLOCK +ECHCK3: GETYP A,(C) ; SEE IF LINKED TO ITS MAIN ENTRY + MOVE B,1(C) + CAIN A,TRSUBR + JRST ECHCK2 + +; CHECK IF CAN LINK ATOM + + CAIE A,TATOM + JRST BENTRY ; LOSER , COMPLAIN +ECHCK4: MOVE B,1(C) ; GET ATOM + PUSH TP,$TVEC + PUSH TP,C + PUSHJ P,IGVAL ; TRY GLOBAL VALUE + HRRZ C,(TP) + SUB TP,C%22 + GETYP 0,A + CAIN 0,TUNBOU + JRST BADVAL + CAIE 0,TRSUBR ; IS IT A WINNER + JRST BENTRY + CAMGE C,PURTOP ; DONT TRY TO SMASH PURE + SKIPE NOLINK + JRST ECHCK2 + HLLM A,(C) ; FIXUP LINKAGE + MOVEM B,1(C) + JRST ECHCK2 + +EVCALL: CAIN A,TATOM ; EVAL CALLING ENTRY? + JRST ECHCK4 ; COULD BE MUST FIXUP + CAIE A,TRSUBR ; YES THIS IS ONE + JRST BENTRY + MOVE B,1(C) +ECHCK2: MOVE R,B ; SET UP R + HRRM C,FSAV+1(TB) ; SET POINTER INTO FRAME + HRRZ C,2(C) ; FIND OFFSET INTO SAME + SKIPL M,1(R) ; POINT TO START OF RSUBR + JRST STUPM1 ; JUMP IF A LOSER + ADDI C,(M) +IFE ITS, SKIPN MULTSG + JRST CALLS ; GO TO SR +IFE ITS,[ +CALLSX: HRLI C,FSEG + JRST CALLS +] +ACHECK: CAIE A,TATOM ; RSUBR CALLING THROUGH REFERENCE ATOM ? + JRST DOAPP3 ; TRY APPLYING IT + MOVE A,(C) + MOVE B,(C)+1 + PUSHJ P,IGVAL + HRRZ C,UUOLOC ; REGOBBLE POINTER TO SLOT + GETYP 0,A ; GET TYPE + CAIN 0,TUNBOUND + JRST TRYLCL +SAVEIT: CAIE 0,TRSUBR + CAIN 0,TENTER + JRST SAVEI1 ; WINNER + CAIE 0,TSUBR + CAIN 0,TFSUBR + JRST SUBRIT + JRST BADVAL ; SOMETHING STRANGE +SAVEI1: CAMGE C,PURTOP ; SKIP IF PURE RSUBR VECTOR (NEVER LINKED) + SKIPE NOLINK + JRST .+3 + MOVEM A,(C) ; CLOBBER NEW VALUE + MOVEM B,(C)+1 + CAIN 0,TENTER + JRST ENTRIT ; HACK ENTRY TO SUB RSUBR + MOVE R,B ; SETUP R + JRST CALLR0 ; GO FINISH THE RSUBR CALL + +ENTRIT: MOVE C,B + JRST ECHCK3 + +SUBRIT: CAMGE C,PURBOT + SKIPE NOLINK + JRST .+3 + MOVEM A,(C) + MOVEM B,1(C) + HRRM B,FSAV+1(TB) ; FIXUP THE PROPER FSAV + MOVEI C,(B) +IFN ITS, JRST CALLS ; GO FINISH THE SUBR CALL +IFE ITS, JRST CALLSX + +TRYLCL: MOVE A,(C) + MOVE B,(C)+1 + PUSHJ P,ILVAL + GETYP 0,A + CAIE 0,TUNBOUND + JRST SAVEIT + SKIPA D,EQUOTE UNBOUND-VARIABLE +BADVAL: MOVEI D,0 +ERCALX: +IFN ITS,[ + AOBJP TB,.+1 ; MAKE TB A LIGIT FRAME PNTR +] +IFE ITS,[ + AOBJP TB,MCHK5 +] +MCHK6: MOVEI E,CALLER + HRRM E,FSAV(TB) ; SET A WINNING FSAV + HRRZ C,UUOLOC ; REGOBBLE POINTER TO SLOT + JUMPE D,DOAPPL + PUSH TP,$TATOM + PUSH TP,D + PUSH TP,(C) + PUSH TP,(C)+1 + PUSH TP,$TATOM + PUSH TP,IMQUOTE CALLER + MCALL 3,ERROR + GETYP 0,A + MOVEI C,-1 + SOJA TB,SAVEIT + +BENTRY: MOVE D,EQUOTE BAD-ENTRY-BLOCK + JRST ERCALX + +IFE ITS,[ +MCHK5: SKIPN MULTSG + JRST MCHK6 + HRLI TB,400000 ; KEEP TB NEGATIVE + JRST MCHK6 +] + + +;HANDLER FOR CALL WHERE SPECIFIES NUMBER OF ARGS + +DACALL": + LDB C,[270400,,UUOLOC] ; GOBBLE THE AC LOCN INTO C + EXCH C,SAVEC ; C TO SAVE LOC RESTORE C + MOVE C,@SAVEC ; C NOW HAS NUMBER OF ARGS + MOVEI D,0 ; FLAG NOT E CALL + JRST COMCAL ; JOIN MCALL + +; CALL TO ENTRY FROM EVAL (LIKE ACALL) + +DECALL: LDB C,[270400,,UUOLOC] ; GET NAME OF AC + EXCH C,SAVEC ; STORE NAME + MOVE C,@SAVEC ; C NOW HAS NUM OF ARGS + MOVEI D,1 ; FLAG THIS + JRST COMCAL + +;HANDLE OVERFLOW IN THE TP + +TPLOSE: PUSHJ P,TPOVFL + JRST CALDON + +; RSUBR HAS POSSIBLY BEEN REPLACED BY A FUNCTION OR WHATEVER, DO AN APPLY + +DOAPPL: PUSH TP,A ; PUSH THE THING TO APPLY + PUSH TP,B + MOVEI A,1 +DOAPP2: JUMPGE AB,DOAPP1 ; ARGS DONE + + PUSH TP,(AB) + PUSH TP,1(AB) + ADD AB,C%22 + AOJA A,DOAPP2 + +DOAPP1: ACALL A,APPLY ; APPLY THE LOSER + JRST FINIS + +DOAPP3: MOVE A,(C) ; GET VAL + MOVE B,1(C) + JRST BADVAL ; GET SETUP FOR APPLY CALL + +; ENTRY TO BUILD A FRAME (USED BY SOME COMPILED PROG/REPEAT) + +BFRAME: SKIPN SAVM + HRLI A,400000+M ; RELATIVIZE PC + MOVEM A,PCSAV(TB) ; CLOBBER PC IN + MOVEM TP,TPSAV(TB) ; SAVE STATE + MOVE SP,SPSTOR+1 + MOVEM SP,SPSAV(TB) + ADD TP,[FRAMLN,,FRAMLN] + SKIPL TP + PUSHJ TPOVFL ; HACK BLOWN PDL + MOVSI A,TCBLK ; FUNNY FRAME + HRRI A,(R) + MOVEM A,FSAV+1(TP) ; CLOBBER + MOVEM TB,OTBSAV+1(TP) + MOVEM AB,ABSAV+1(TP) + POP P,A ; RET ADDR TO A + MOVEM P,PSAV(TB) + HRRI TB,(TP) +IFN ITS, AOBJN TB,.+1 +IFE ITS, AOBJP TB,.+2 + JRST (A) + +IFE ITS,[ + SKIPN MULTSG + JRST (A) + HRLI TB,400000 ; KEEP TB NEGATIVE + JRST (A) +] + + ;SUBROUTINE TERMINATION CODE (NOT A UUO BUT HERE FOR COMPLETENENSS) + +FINIS: +CNTIN1: HRRZS C,OTBSAV(TB) ; RESTORE BASE + HRRI TB,(C) +CONTIN: MOVE TP,TPSAV(TB) ; START HERE FOR FUNNY RESTART + MOVE P,PSAV(TB) + MOVE SP,SPSTOR+1 + CAME SP,SPSAV(TB) ; ANY RESTORATION NEEDED + PUSHJ P,SPECSTO ; YES, GO UNRAVEL THE WORLDS BINDINGS + MOVE AB,ABSAV(TB) ; AND GET OLD ARG POINTER + HRRZ C,FSAV(TB) ; CHECK FOR RSUBR + MOVEI M,0 ; UNSETUP M FOR GC WINNAGE + CAILE C,HIBOT ; SKIP IF ANY FLAVOR OF RSUBR +IFN ITS, JRST @PCSAV(TB) ; AND RETURN +IFE ITS, JRST MRET + GETYP 0,(C) ; RETURN TO MAIN OR SUB ENTRY? + CAIN 0,TCODE + JRST .+3 + CAIE 0,TPCODE + JRST FINIS1 + MOVS R,(C) + HRRI R,(C) ; RESET R + SKIPL M,1(R) ; GET LOC OF REAL SUBR + JRST FINIS2 + +;HERE TO RETURN TO NBIN + +RETNBI: HLRZ 0,PCSAV(TB) ; GET FUNNY STUFF + JUMPN 0,@PCSAV(TB) + MOVEM M,SAVM + MOVEI M,0 + JRST @PCSAV(TB) + +FINIS1: CAIE 0,TRSUBR + JRST FINISA ; MAY HAVE BEEN PUT BACK TO ATOM + MOVE R,1(C) +FINIS9: SKIPGE M,1(R) + JRST RETNBI + +FINIS2: MOVEI C,(M) ; COMPUTE REAL M FOR PURE RSUBR + HLRS M + ADD M,PURVEC+1 + SKIPN M,1(M) ; SKIP IF LOADED + JRST FINIS3 + ADDI M,(C) ; POINT TO SUB PART +PCREST: HLRZ 0,PCSAV(TB) +IFN ITS, JUMPN @PCSAV(TB) +IFE ITS,[ + JUMPE 0,NOMULT + SKIPN MULTSG + JRST NOMULT + HRRZ G,PCSAV(TB) + CAML G,PURBOT + JRST MRET + ADD G,M + TLZ G,777400 + MOVEI F,0 + XJRST F +NOMULT: JUMPN 0,MRET +] + MOVEM M,SAVM + MOVEI M,0 +IFN ITS, JRST @PCSAV(TB) +IFE ITS,[ +MRET: SKIPN MULTSG + JRST @PCSAV(TB) + MOVE D,PCSAV(TB) + HRLI D,FSEG + MOVEI C,0 + XJRST C +] + +FINIS3: PUSH TP,A + PUSH TP,B + HLRZ A,1(R) ; RELOAD IT + PUSHJ P,PLOAD + JRST PCANT + POP TP,B + POP TP,A + MOVE M,1(R) + JRST FINIS2 + +FINISA: CAIE 0,TATOM + JRST BADENT + PUSH TP,A + PUSH TP,B + PUSH TP,$TENTER + HRL C,(C) + PUSH TP,C + MOVE B,1(C) ; GET ATOM + PUSHJ P,IGVAL ; GET VAL + GETYP 0,A + CAIE 0,TRSUBR + JRST BADENT + HRRZ C,(TP) + MOVE R,B + CAMLE C,PURTOP ; SKIP IF CAN LINK UP + JRST .+3 + HLLM A,(C) + MOVEM B,1(C) + MOVE A,-3(TP) + MOVE B,-2(TP) + SUB TP,C%44 + JRST FINIS9 + +BADENT: ERRUUO EQUOTE RSUBR-ENTRY-UNLINKED + +PCANT1: ADD TB,[1,,] +PCANT: ERRUUO EQUOTE PURE-LOAD-FAILURE + +REPEAT 0,[ +BCKTR1: PUSH TP,A ; SAVE VALUE TO BE RETURNED + PUSH TP,B ; SAVE FRAME ON PP + PUSHJ P,BCKTRK + POP TP,B + POP TP,A + JRST CNTIN1 +] + +; SUBR TO ENABLE AND DISABLE LINKING OF RSUBRS AT RUN TIME + +MFUNCTION %RLINK,SUBR,[RSUBR-LINK] + + ENTRY + + HRROI E,NOLINK + JRST FLGSET + +;HANDLER FOR DEBUGGING CALL TO PRINT + +DODP": + PUSH P,0 + MOVSI 0,7777400 + ANDCAM 0,UUOLOC + PUSH TP, @UUOLOC + AOS UUOLOC + PUSH TP,@UUOLOC + PUSH P,A + PUSH P,B + PUSH P,SAVEC + PUSH P,D + PUSH P,E + PUSH P,PVP + PUSH P,TVP + PUSH P,SP + PUSH P,UUOLOC + PUSH P,UUOH + MCALL 1,PRINT + POP P,UUOH + POP P,UUOLOC + POP P,SP + POP P,TVP + POP P,PVP + POP P,E + POP P,D + POP P,C + POP P,B + POP P,A + POP P,0 + JRST UUOH + + +DFATAL: +IFE ITS,[ + MOVEM A,20 + HRRO A,UUOLOC + ESOUT + HALTF + MOVE A,20 + MOVE C,SAVEC + JRST @UUOH +] +REPEAT 0,[ +; QUICK CALL HANDLER + +DQCALL: GETYP C,@40 ; SEE IF THIS GUY IS A QRSUBR OR QENT + CAIN C,TQENT + JRST DQCALE + CAIN C,TQRSUB + JRST DQCALR + +; NOT A QENT OR QRSUBR, MAYBE AN ATOM THAT LINKS TO ONE + + SKIPN NOLINK + CAIE C,TATOM ; SKIP IF ATOM + JRST DMCALL ; PRETEND TO BE AN MCALL + + MOVE C,UUOH ; GET PC OF CALL + SUBI C,(M) ; RELATIVIZE + PUSH P,C ; AND SAVE + LDB C,[270400,,40] ; GET # OF ARGS + PUSH P,C + HRRZ C,40 ; POINT TO RSUBR SLOT + MOVE B,1(C) ; GET ATOM + SUBI C,(R) ; RELATIVIZE IT + HRLI C,(C) + ADD C,R ; C IS NOW A VECTOR POINTER + PUSH TP,$TVEC + PUSH TP,C + PUSH TP,$TATOM + PUSH TP,B + PUSHJ P,IGVAL ; SEE IF IT HAS A VALUE + GETYP 0,A ; IS IT A WINNER + CAIE 0,TUNBOU + JRST DQCAL2 + MOVE B,(TP) + PUSHJ P,ILVAL ; LOCAL? + GETYP 0,A + CAIE 0,TUNBOU + JRST DQCAL2 ; MAY BE A WINNER + + PUSH TP,$TATOM + PUSH TP,EQUOTE UNBOUND-VARIABLE + PUSH TP,$TATOM + PUSH TP,-3(TP) + PUSH TP,$TATOM + PUSH TP,IMQUOTE CALLER + MCALL 3,ERROR + GETYP 0,A +DQCAL2: PUSH TP,$TENTE ; IN CASE RSUBR ENTRY + PUSH TP,C%0 + CAIN 0,TRSUBR ; RSUBR? + JRST DQRSB ; YES, WIN + CAIN 0,TENTER + JRST DQENT + +DQMCAL: HRRZ C,-6(TP) ; PRETEND WE WERE AN MCALL + HRRM C,40 + POP P,C + DPB C,[270400,,40] + POP P,C + ADDI C,(M) ; AND PC + MOVEM C,UUOH + SUB TP,[10,,10] + JRST DMCALL ; FALL INTO MCALL CODE + +DQENT: MOVEM B,(TP) ; SAVE IT + GETYP 0,(B) ; LINKED UP? + MOVE B,1(B) + CAIN 0,TRSUBR + JRST DQENT1 +DQENT2: CAIE 0,TATOM ; BETTER BE ATOM + JRST BENTRY + PUSHJ P,IGVAL ; TRY TO LINK IT UP + GETYP 0,A + CAIE 0,TRSUBR + JRST BENTRY ; LOSER! + MOVE C,(TP) + HLLM A,(C) + MOVEM B,1(C) + +DQENT1: +DQRSB: PUSH TP,$TRSUBR + PUSH TP,B + + PUSH TP,$TUVEC + PUSH TP,M + + SKIPL M,1(B) + PUSHJ P,DQCALQ ; MAP ONE IN + + MOVEI E,0 ; GET OFFSET + SKIPL 1(B) + HLRZ E,1(B) + HLRE B,M ; FIND END OF CODE VECTOR + SUBM M,B + MOVE M,(TP) + SUB TP,C%22 + HLRZ A,-1(B) ; GET LENGTH OF ENTRY VECTOR + HRRZ C,-1(B) ; GET LENGTH OF DDT SYMBOL TABLE + ADDI C,(A) ; TOTAL LENGTH OF RANDOM CRUFT AT THE END OF CODE + SUBI B,1(C) ; POINT TO FIRST ELEMENT IN ENTRY VECTOR + +SL2: HRRZ D,(B) + CAIL D,(E) ; IN RANGE? + JRST SL1 + ADDI B,1 + SOJG A,SL2 + JRST DQMCAL + +SL1: HLRE D,(B) ; GET NEXT + JUMPL D,DQMCAL + CAMN D,(P) + JRST .+4 + ADDI B,1 + SOJG A,.-4 + JRST DQMCAL + + HRRZ C,(B) ; GET OFFSET + MOVE R,(TP) ; SETUP R + SKIPN B,-2(TP) ; SKIP IF RSUBR ENTRY + JRST DQRSB1 + + ADD C,2(B) + HRLI C,TQENT + JRST DQMUNG + +DQRSB1: MOVE B,(TP) + HRLI C,TQRSUB + +DQMUNG: HRRZ D,-6(TP) ; GET CALLING RVECTOR + CAILE D,@PURTOP ; SMASHABLE? + JRST DQLOSS ; NO LOSE + + MOVEM C,(D) ; SMASH + MOVEM B,1(D) + +DQLOSS: SUB P,C%11 + POP P,E ; RESTORE PC + ADDI E,(M) + MOVEM E,UUOH + SUB TP,[10,,10] + MOVEI E,C + JRST DQCAL1 + +DQCALE: MOVE E,40 + MOVE B,1(E) ; GET RSUBR ENTRY + MOVE R,1(B) + JRST DQCAL1 + +DQCALR: MOVE E,40 + MOVE B,1(E) + MOVE R,B + +DQCAL1: HRRZ E,(E) + HRRZ C,RSTACK(PVP) + HRLI C,(C) + ADD C,RSTACK+1(PVP) + JUMPGE C,QCOPY + HRRZ A,FSAV(TB) + HRL A,(A) + MOVEM A,(C) ; SAVE IT + AOS C,RSTACK(PVP) + HRRM B,FSAV(TB) ; FOR FUTURE MCALLS + HRLI C,-1(C) + HRR C,UUOH + SUBI C,(M) ; RELATIVIZE + PUSH P,C ; SAVE BOTH + SKIPL M,1(R) ; MAYBE LINK UP? + PUSHJ P,DQCALP + ADDI E,1(M) + JRST (E) ; GO + +DQCALP: MOVE B,R +DQCALQ: HLRS M ; GET VECTOR OFFSET IN BOTH HALVES + ADD M,PURVEC+1 ; GET IT + SKIPL M + FATAL LOSING PURE RSUBR POINTER + SKIPE M,1(M) + POPJ P, + +DQCLP1: PUSH TP,$TRSUBR + PUSH TP,B + PUSH P,E + HLRZ A,1(B) ; SET UP TO CALL LOADER + PUSHJ P,PLOAD ; LOAD IT + JRST PCANT + POP P,E + MOVE M,B ; GET LOCATION + MOVE B,(TP) + SUB TP,C%22 + POPJ P, + +QCOPY: PUSH TP,$TVEC + PUSH TP,B + HRRZ C,UUOH + SUBI C,(M) + PUSH P,C + PUSH P,E + HLRE A,RSTACK+1(PVP) + MOVNS A + ADDI A,100 + PUSHJ P,IBLOCK ; GET BLOCK + MOVEI A,.VECT.+TRSUBR + HLRE C,B + SUBM B,C + MOVEM A,(C) + HRLZ A,RSTACK+1(PVP) + JUMPE A,.+3 + HRRI A,(B) + BLT A,-101(C) ; COPY IT + MOVEM B,RSTACK+1(PVP) + MOVE B,(TP) + SUB TP,C%22 + POP P,E + POP P,C + ADDI C,(M) + HRRM C,UUOH + JRST DQCAL1 + +QMPOPJ: SKIPL E,(P) + JRST QFINIS + SUBM M,(P) + POPJ P, + +QFINIS: POP P,D + HLRZS D + HRRM D,RSTACK(PVP) + ADD D,RSTACK+1(PVP) + MOVE R,(D) ; GET R OR WHATEVER + HRRM R,FSAV(TB) + GETYP 0,(R) ; TYPE + CAIN 0,TRSUBR ; RSUBR? + MOVE R,1(R) + SKIPL M,1(R) ; RSUBR IN CORE ETC + JRST QRLD + +QRLD2: ADDI E,(M) + JRST (E) + +QRLD: HLRS M + ADD M,PURVEC+1 + SKIPE M,1(M) ; SKIP IF LOADED + JRST QRLD2 + PUSH TP,A + PUSH TP,B + HLRZ A,1(R) ; RELOAD IT + PUSHJ P,PLOAD + JRST PCANT + POP TP,B + POP TP,A + MOVE M,1(R) + JRST QRLD2 + +] +; THIS IS A UUO TO CALL ERROR WITH ONE ARGUMENT + +DOERR: PUSH P,UUOH + PUSH TP,$TATOM + MOVSI 0,7777400 + ANDCAM 0,UUOLOC + PUSH TP,@UUOLOC + JRST CALER1 + +; ROUTINE TO DO AN RCALL FOR SUBRIFIED GOODIES + +RMCALL: MOVEM M,SAVM ; SAVE M + SUBM M,(P) + MOVEI M,0 + PUSHJ P,@0 + MOVE M,SAVM + SETZM SAVM + SUBM M,(P) + POPJ P, + + +; ROUTINE USED BY COMPILED CODE TO SAVE ACS CALL AN INTERRUPT AND RESTORE ACS. +; THIS UUO TAKES A LOCATION FROM WHICH TO FIND A DESCRIPTION OF HOW ACS ARE TO +; BE SAVED. +; .SAVAC LOC +; LOC POINTS TO A BLOCK WHICH CAN BE ONE OR MORE WORDS LONG DEPENDING ON BOTH +; THE NUMBER OF SCRATCH AC'S (CURRENTLY 5) AND THE NUMBER OF AC'S CONTAINING +; TEMPLATE TYPES. +; THE FIRST PART OF THE BLOCK CONTAINS THE AC DECRIPTIONS. EACH AC IS DESCRIBED +; BY A SIX BIT FIELD WITH THE EXCEPTION OF AC'S CONTAINING TEMPLATES. +; THE SIX BIT FIELD CAN BE +; +; 0 EITHER A TYPE WORD OR NOTHING +; 1 -> 8 THE NUMBER OF THE AC CONTAINING THE TYPE +; 9 -> 62 THE SAT OF THE THING CONTAINED IN THE AC (+ 8) +; 63 A TEMPLATE LOOK AT THE BLOCK AFTER TO FIND A POINTER TO THE TYPE WORD +; +; TEMPLATE DESCRIPTIONS ARE FOUND AFTER THE AC DESCRIPTION BLOCK. THESE ARE FOUND +; IN SUCESSIVE WORDS CONTAINING POINTERS INTO THE R VECTOR + +NOACS==10 +TMPPTR==2 + +ONOACS==5 +OTMPPT==1 + +DLSAVA: PUSH P,[SETZ NOACS] + PUSH P,[SETZ TMPPTR] + JRST DSAVA1 + +DSAVAC: PUSH P,[SETZ ONOACS] + PUSH P,[SETZ OTMPPT] +DSAVA1: +IFN ITS, MOVE 0,UUOH ; GET PC +IFE ITS,[ + MOVE 0,UUOH + SKIPE MULTSG + MOVE 0,MLTPC +] + PUSH P,0 + ANDI 0,-1 + PUSH P,UUOLOC ; SAVE UUO + CAMG 0,PURTOP + CAMGE 0,VECBOT + JRST DONREL + SUBI 0,(M) ; M IS BASE REG +IFN ITS, TLO 0,M ; INDEX IT OFF M +IFE ITS,[ + HRLI 0,400000+M +] + MOVEM 0,-1(P) ; AND RESTORE TO STACK +; MOVE 0,UUOLOC ; GET REL POINTER TO TBL - REDUNDANT +; MOVEM 0,(P) ; AND SAVE IT - REDUNDANT PTR ALREADY PUSHED +DONREL: MOVE C,SAVEC + MOVE 0,[A,,ACSAV] + BLT 0,ACSAV+NOACS-1 + HRRZ 0,-3(P) ; NUMBER OF ACS +; MOVE A,[440620,,UUOLOC] ; BYTE POINTER INDIRECTED TO 40 +IFN ITS,[ + MOVE A,UUOLOC ; GET THE INSTRUCTION + HRLI A,440640 ; OR IN THE BYTE POINTER +] +IFE ITS,[ + MOVSI A,440600+B ; OR IN THE BYTE POINTER + SKIPN MULTSG + HRRZ B,UUOLOC + SKIPE MULTSG + MOVE B,MLTEA +] + MOVE D,-2(P) ; POINTER TO TEMPLATE BLOCK +IFN ITS,[ + MOVSI C,7777400 + ANDCAM C,UUOLOC + ADD D,UUOLOC ; GET TO BLOCK +] +IFE ITS,[ + SKIPE MULTSG + JRST XXXYYY + MOVSI C,7777400 + ANDCAM C,UUOLOC + ADD D,UUOLOC + CAIA + +XXXYYY: ADD D,MLTEA +] + HRROI C,1 +LOPSAV: ILDB E,A ; GET A DESCRIPTOR + JUMPE E,NOAC1 ; ZERO==TYPE WORD + CAIE E,77 ; IF 63. THEN TEMPLATE HANDLE SPECIALLY + JRST NOTEM ; NOT A TEMPLATE + PUSH TP,@(D) ; IT IS A TEMPLATE POINTER SO PUSH TYPE + ADDI D,1 ; AOS B +LOPPUS: PUSH TP,ACSAV-1(C) ; PUSH AC +LPSVDN: ADDI C,1 + SOJG 0,LOPSAV ; LOOP BACK + MOVE 0,[ACSAV,,A] + BLT 0,NOACS + JSR LCKINT ; GO INTERRUPT + HRRZ B,-3(P) ; NUMBER OF ACS +LOPPOP: POP TP,ACSAV-1(B) +LOPBAR: SUB TP,C%11 +LOPFOO: SOJG B,LOPPOP + JUMPE R,LOPBLT ; OK, NOT RSUBR + SKIPL 1(R) ; NOT PURE RSUBR + SKIPN MULTSG + JRST LOPBLT + + MOVE B,M + TLZ B,77740 + MOVEI A,0 + HRRI B,LOPBLT + XJRST A + +LOPBLT: MOVE 0,[ACSAV,,A] + BLT 0,@-3(P) ; RESTORE AC'S + MOVE 0,-1(P) + SUB P,C%44 ; RETURN ADDRESS, (M) + JRST @0 + +NOTEM: CAILE E,8. ; SKIP IF AC IS TO BE PUSHED + JRST NOAC +IFE ITS, TLO E,400000 ; MAKE LOCAL INDEX + PUSH TP,ACSAV-1(E) + JRST LOPPUS ; FINISH PUSHING +NOAC: SUBI E,8 ; COMPENSATE FOR ADDED AMOUNT +NOAC1: +IFE ITS, TLO E,400000 ; MAKE LOCAL INDEX + MOVE E,@STBL(E) + HLRE F,E ; GET NEGATIVE + SUB E,F + HRLZ E,(E) ; GET TYPE CODE + TLZ E,400000+<0,,<-1>#> ; KILL SIGN BIT + PUSH TP,E ; PUSH TYPE + JRST LOPPUS ; FINISH PUSHING + +FMPOPJ: MOVE TP,FRM + MOVE FRM,(TP) + HRLS C,-1(TP) + SUB TP,C + SUBM M,(P) + POPJ P, + + +NFPOPJ: MOVE TP,FRM ; CLEAR OFF FRM + MOVE FRM,(TP) + HRLS C,-1(TP) + SUB TP,C + +; THIS WEIRD PIECE OF CODE IS USED TO DO AN MPOPJ IN SUBRIFIED CODE THAT +; DOES A SKIP/NON SKIP RETURN. + +NSPOPJ: EXCH (P) + TLNE 37 + MOVNS 0 + EXCH (P) + POPJ P, + + +DPOPUN: PUSHJ P,POPUNW + JRST @UUOH + +; HERE FOR MULTI SEG SIMULATION STUFF + +DMOVE: MOVSI C,(MOVE) + JRST MEX +DHRRM: MOVSI C,(HRRM) + JRST MEX +DHRLM: MOVSI C,(HRLM) + JRST MEX +DMOVEM: MOVSI C,(MOVEM) + JRST MEX +DHLRZ: MOVSI C,(HLRZ) + JRST MEX +DSETZM: MOVSI C,(SETZM) + JRST MEX +DXBLT: MOVE C,[123000,,[020000,,]] + +MEX: MOVEM A,20 + MOVE A,UUOH ; GET LOC OF INS + MOVE A,-1(A) + TLZ A,777000 + IOR A,C + XJRST .+1 + 0 + FSEG,,.+1 + MOVE C,SAVEC + EXCH A,20 + XCT 20 + XJRST .+1 + 0 + .+1 + JRST @UUOH + + +IMPURE + +SAVM: 0 ; SAVED M FOR SUBRIFY HACKERS + +ACSAV: BLOCK NOACS + + +PURE + +END + \ No newline at end of file -- 2.31.1