1 TITLE OPEN - CHANNEL OPENER FOR MUDDLE
18 ;THIS PROGRAM HAS ENTRIES: FOPEN, FCLOSE, RENAME, READB, PRINTB, FILECOPY, READSTRING,
19 ; PRINTSTRING, NETSTATE, NETACC, NETS, ACCESS, AND FILE-EXISTS?
21 ;THESE SUBROUTINES HANDLE I/O STREAMS FOR THE MUDDLE SYSTEM.
23 ; FOPEN - OPENS A FILE FOR EITHER READING OR WRITING. IT TAKES
24 ; FIVE OPTINAL ARGUMENTS AS FOLLOWS:
26 ; FOPEN (<DIR>,<FILE NAME1>,<FILE NAME2>,<DEVICE>,<SYSTEM NAME>)
28 ; <DIR> - DIRECTION EITHER READ (INPUT) OR PRINT (OUPUT). DEFAULT IS READ
30 ; <FILE NAME1> - FIRST FILE NAME. DEFAULT INPUT OR OUTPUT.
32 ; <FILE NAME2> - SECOND FILE NAME. DEFAULT MUDDLE.
34 ; <DEVICE> - DEVICE FROM WHICH TO OPEN. DEFAULT IS DSK.
36 ; <SNAME> - SYSTEM (DIRECTORY) NAME. DEFAULT UNAME.
38 ; FOPEN RETURNS AN OBJECT OF TYPE CHANNEL IF IT SUCCEEDS OTHERWISE NIL
41 ; FCLOSE - CLOSES A FILE. TAKES A CHANNEL OBJECT AS ITS ARGUMENT. IT ALSO TAKES
42 ; ACCESS - DOES A .ACCESS ON A CHARACTER BASIS FOR CHARACTER FILES
45 ; A CHANNEL OBJECT IS A VECTOR CONTAINIG THE FOLLOWING INFORMATION
47 ; CHANNO ;ITS I/O CHANNEL NUMBER. 0 MEANS NOT A REAL CHANNEL.
48 ; DIRECT ;DIRECTION (EITHER READ OR PRINT)
49 ; NAME1 ;FIRST NAME OF FILE AS OPENED.
50 ; NAME2 ;SECOND NAME OF FILE
51 ; DEVICE ;DEVICE UPON WHICH THE CHANNEL IS OPEN
52 ; SNAME ;DIRECTORY NAME
53 ; RNAME1 ;REAL FIRST NAME (AS RETURNED BY READING CHANNEL STATUS)
54 ; RNAME2 ;REAL SECOND NAME
56 ; RSNAME ;SYSTEM OR DIRECTORY NAME
57 ; STATUS ;VARIOUS STATUS BITS
58 ; IOINS ;INSTRUCTION EXECUTED TO INPUT OR OUTPUT ONE CHARACTER
59 ; ACCESS ;ACCESS POINTER FOR RAND ACCESS (OR USED FOR DISPLAY INFO)
60 ; RADX ;RADIX FOR CHANNELS NUMBER CONVERSION
62 ; *** THE FOLLOWING FIELDS FOR OUTPUT ONLY ***
63 ; LINLN ;LENGTH OF A LINE IN CHARACTERS FOR THIS DEVICE
64 ; CHRPOS ;CURRENT POSITION ON CURRENT LINE
65 ; PAGLN ;LENGTH OF A PAGE
66 ; LINPOS ;CURRENT LINE BEING WRITTEN ON
68 ; *** THE FOLLOWING FILEDS FOR INPUT ONLY ***
69 ; EOFCND ;GETS EVALUATED ON EOF
70 ; LSTCH ;BACKUP CHARACTER
71 ; WAITNS ;FOR TTY INPUT, BECOMES A .SLEEP WHEN WAITING
72 ; EXBUFR ;FOR TTY INPUT, CONTAINS A WAITING BUFFER LIST
73 ; BUFSTR ;A CHARACTER STRING USED AS BUFFER FOR NON-TTY DEVICES
75 ; THIS DEFINES THE LENGTH OF THE NON-TTY BUFFER
78 ;THIS DEFINES BLOCK MODE BIT FOR OPENING
79 BLOCKM==2 ;DEFINED IN THE LEFT HALF
83 ;THIS IRP DEFINES THE FIELDS AT ASSEMBLY TIME
85 CHANLNT==4 ;INITIAL CHANNEL LENGTH
87 ; BUILD A PROTOTYPE CHANNEL AND DEFINE FILEDS
88 BUFRIN==-1 ;SPECIAL HACK SO LOSERS WON'T SEE TTY BUFFER
89 SCRPTO==-3 ;SPECIAL HACK FOR SCRIPT CHANNELS
92 IRP A,,[[CHANNO,FIX],[DIRECT,CHSTR]
93 [NAME1,CHSTR],[NAME2,CHSTR],[DEVICE,CHSTR],[SNAME,CHSTR]
94 [RNAME1,CHSTR],[RNAME2,CHSTR],[RDEVIC,CHSTR],[RSNAME,CHSTR]
95 [STATUS,FIX],[IOINS,FIX],[LINLN,FIX],[CHRPOS,FIX],[PAGLN,FIX],[LINPOS,FIX]
96 [ACCESS,FIX],[RADX,FIX],[BUFSTR,CHSTR]]
108 ; EQUIVALANCES FOR CHANNELS
114 DISINF==BUFSTR ;DISPLAY INFO
115 INTFCN==BUFSTR ;FUNCTION (OR SUBR, OR RSUBR) TO BE APPLIED FOR INTERNAL CHNLS
118 ;DEFINE VARIABLES ASSOCIATED WITH TTY BUFFERS
120 IRP A,,[IOIN2,ECHO,CHRCNT,ERASCH,KILLCH,BRKCH,ESCAP,SYSCHR,BRFCHR,BRFCH2,BYTPTR]
124 EXTBFR==BYTPTR+1+<100./5> ;LENGTH OF ADD'L BUFFER
129 .GLOBAL IPNAME,MOPEN,MCLOSE,MIOT,ILOOKU,6TOCHS,ICLOS,OCLOS,RGPARS,RGPRS
130 .GLOBAL OPNCHN,CHMAK,READC,TYO,SYSCHR,BRFCHR,LSTCH,BRFCH2,EXTBFR
131 .GLOBAL CHRWRD,STRTO6,TTYBLK,WAITNS,EXBUFR,TTICHN,TTOCHN,GETCHR,IILIST
132 .GLOBAL CHANNO,STATUS,LINPOS,PAGLN,CHRPOS,LINLN,IOINS,ACCESS,ADDNUL
133 .GLOBAL DIRECT,DISINF,RADX,EOFCND,BUFSTR,MODE1,MODE2,GCHACK,GMTYO,INMTYO
134 .GLOBAL T.CHAN,NAME1,BFCLOS,DOIOTI,DOIOTO,DOACCS,NOTTY,DEMFLG,BYTDOP,TNXIN
135 .GLOBAL DISOPN,DISROP,DISCLS,DCHAR,DISLNL,DISPGL,INSTAT,MTYO,CIREST
136 .GLOBAL ECHO,ERASCH,KILLCH,BRKCH,BYTPTR,SYSCHR,CHRCNT,ESCAP,N.CHNS
137 .GLOBAL REOPN,QUITTE,CHNL0,CHNL1,BUFRIN,IOIN2,IFALSE,GFALS,IDVAL,PVSTOR,SPSTOR
138 .GLOBAL BADCHN,WRONGD,CHNCLS,GSNAME,GIBLOK,APLQ,NAPT,ICONS,INCONS,IBLOCK,IDVAL1
139 .GLOBAL GRB,GWB,R1CHAR,W1CHAR,BFCLS1,TTYOP2,MPOPJ,COMPER,R1C,W1C,WXCT,RXCT
140 .GLOBAL TMTNXS,TNXSTR,RDEVIC,CPCH1,RCYCHN,CGFALS,CISTNG,CFILLE,FRSTCH
154 ; DEFINITIONS OF THE OFFSETS INTO THE TP STACK FOR OPEN
156 T.SPDL==0 ; SAVES P STACK BASE
157 T.DIR==2 ; CONTAINS DIRECTION AND MODE
158 T.NM1==4 ; NAME 1 OF FILE
159 T.NM2==6 ; NAME 2 OF FILE
160 T.DEV==10 ; DEVICE NAME
162 T.XT==14 ; EXTRA CRUFT IF NECESSARY
163 T.CHAN==16 ; CHANNEL AS GENERATED
165 ; OFFSETS FROM PSTACK BASE (USED FOR OPENS, .RCHST AND .FDELES)
167 S.DIR==0 ; CODE FOR DIRECTION 0-IN, 1-OUT, 2-BIN, 3-BOUT,4-DISPLAY
168 ; S.DIR(P) = <control word>,,<direction>
170 S.DEV==1 ; SIXBIT DEVICE RIGHT JUSTIFIED
171 S.NM1==2 ; SIXBIT NAME1
172 S.NM2==3 ; SIXBIT NAME2
173 S.SNM==4 ; SIXBIT SNAME
187 ; FLAGS SPECIFYING STATE OF THE WORLD AT VARIOUS TIMES
189 NOSTOR==400000 ; ON MEANS DONT BUILD NEW STRINGS
190 MSTNET==200000 ; ON MEANS ONLY THE "NET" DEVICE CAN WIN
191 SNSET==100000 ; FLAG, SNAME SUPPLIED
192 DVSET==040000 ; FLAG, DEV SUPPLIED
193 N2SET==020000 ; FLAG, NAME2 SET
194 N1SET==010000 ; FLAG, NAME1 SET
195 4ARG==004000 ; FLAG, CONSIDER ARGS TO BE 4 STRINGS
197 RMT [EXPUNGE N1SET,N2SET,DVSET,SNSET,MSTNET,NOSTOR
200 ; TABLE OF LEGAL MODES
202 MODES: IRP A,,[READ,PRINT,READB,PRINTB,PRINTO,PRINAO]
208 ; TABLE OF KNOWN DEVICES AND A POINTER TO THEIR OPENERS
211 DEVSTB: IRP A,,[DSK,TTY,USR,STY,ST,NET,INT,PTP,PTR,UT,T,NUL]
212 SIXBIT /A/ ; DEVICE NAMES
215 DEVS: IRP B,,[ODSK,OTTY,OUSR,OSTY,OSTY,ONET,OINT,OPTP,OPTP,OUTN,OTTY,ONUL]
221 DEVSTB: IRP A,,[PS,SS,SRC,DSK,TTY,INT,NET]
225 DEVS: IRP B,,[ODSK,ODSK,ODSK,ODSK,OTTY,OINT,ONET]
233 ;SUBROUTINE TO DO OPENING BEGINS HERE
235 MFUNCTION NFOPEN,SUBR,[OPEN-NR]
239 MFUNCTION FOPEN,SUBR,[OPEN]
242 PUSHJ P,MAKCHN ;MAKE THE CHANNEL
243 PUSHJ P,OPNCH ;NOW OPEN IT
245 SUB D,[4,,4] ; TOP THE CHANNEL
246 MOVEM D,RCYCHN+1 ; RECYCLE DEAD CHANNEL
253 ; SUBR TO JUST CREATE A CHANNEL
255 IMFUNCTION CHANNEL,SUBR
265 ; THIS ROUTINE PARSES ARGUMENTS TO FOPEN ETC. AND BUILDS A CHANNEL BUT DOESN'T OPEN IT
267 MAKCHN: PUSH TP,$TPDL
268 PUSH TP,P ; POINT AT CURRENT STACK BASE
271 MOVEI E,10 ; SLOTS OF TP NEEDED
275 EXCH E,(P) ; GET RET ADDR IN E
277 IRP ATM,,[DEV,NM1,NM2,SNM]MDF,,[DSK,INPUT,>,[ ]]TMDF,,[DSK,INPUT,MUD,[ ]]
286 IFN ITS, MOVE B,CHQUOTE MDF
287 IFE ITS, MOVE B,CHQUOTE TMDF
293 PUSHJ P,STRTO6 ; RESULT LEFT ON P STACK AS DESIRED
296 PUSH TP,[0] ; PUSH SLOTS
299 PUSH P,[0] ; EXT SLOTS
302 PUSH P,E ; PUSH RETURN ADDRESS
305 JUMPGE AB,MAKCH0 ; NO ARGS, ALREADY DONE
306 GETYP 0,(AB) ; 1ST ARG MUST BE A STRING
309 MOVE A,(AB) ; GET ARG
311 PUSHJ P,CHMODE ; CHECK OUT OPEN MODE
313 PMOVEM (AB),T.DIR(TB) ; SAVE MODE NAME IN TEMPS
314 ADD AB,[2,,2] ; BUMP PAST DIRECTION
316 JUMPGE AB,MAKCH0 ; CHECK NAME1 BASED ON JUST MODE
318 MOVEI 0,0 ; FLAGS PRESET
319 PUSHJ P,RGPARS ; PARSE THE STRING(S)
322 ; ARGUMENTS PARSED, DO FINAL CHECKS AND BUILD CHANNEL
327 MOVE D,S.DEV(C) ; GET DEV
338 IFE ITS, CAIE D,(SIXBIT /INT/);INTERNAL?
339 IFN ITS, CAME D,[SIXBIT /INT /]
340 JRST CHNET ; NO, MAYBE NET
341 SKIPN T.XT+1(TB) ; WAS FCN SUPPLIED?
344 ; FALLS TROUGH IF SKIP
348 ; NOW BUILD THE CHANNEL
350 ARGSOK: MOVEI A,CHANLNT ; GET LENGTH
351 SKIPN B,RCYCHN+1 ; RECYCLE?
352 PUSHJ P,GIBLOK ; GET A BLOCK OF STUFF
354 ADD B,[4,,4] ; HIDE THE TTY BUFFER SLOT
357 HRLI C,PROCHN ; POINT TO PROTOTYPE
358 HRRI C,(B) ; AND NEW ONE
359 BLT C,CHANLN-5(B) ; CLOBBER
360 MOVSI C,TLIST ; TO GIVE HIM A CLEAN LIST OF SCRIPT CHANS
363 ; NOW BLT IN STUFF FROM THE STACK
365 MOVSI C,T.DIR(TB) ; DIRECTION
368 MOVEI C,RNAME1-1(B) ; NOW "REAL" SLOTS
381 ANDI B,403776 ; ONLY ALLOW NON-CRITICAL BITSS
383 HRRM B,-4(C) ; HIDE BITS
387 ; HERE TO VALIDIFY ARGUMENTS FOR A NET OPEN
391 CAME D,[SIXBIT /NET /] ; IS IT NET
394 CAIE D,(SIXBIT /NET/) ; IS IT NET
396 MOVSI D,TFIX ; FOR TYPES
397 MOVEI B,T.NM1(TB) ; MAKE SURE ALL ARE FIXED
402 LSH A,-1 ; SKIP DEV FLAG
406 MAKCH1: TRNN A,MSTNET ; CANT HAVE SEEN A FIX
411 CHFIX: TRNE A,N1SET ; SKIP IF NOT SPECIFIED
413 SETOM 1(B) ; SET TO -1
415 MOVEM D,(B) ; CORRECT TYPE
421 CHFIX1: ADDI C,1 ; POINT TO NEXT FIELD
422 LSH A,-1 ; AND NEXT FLAG
448 ; SUBROUTINE TO CHECK VALIDITY OF MODE AND SAVE A CODE
450 CHMODE: PUSHJ P,CHMOD ; DO IT
455 CHMOD: PUSHJ P,STRTO6 ; TO SIXBIT
456 POP P,B ; VALUE ENDSUP ON STACK, RESTORE IT
458 MOVSI A,-NMODES ; SCAN TO SEE IF LEGAL MODE
461 JUMPGE A,WRONGD ; ILLEGAL MODE NAME
467 ; RGPARS -- PARSE THE STRINGS COMPRISING FILE NAMES INTO STANDARD ITS GOODIES
469 RGPRS: MOVEI 0,NOSTOR ; DONT STORE STRINGS IF ENTER HERE
471 RGPARS: CAMGE AB,[-7,,] ; MULTI-STRING CASE POSSIBLE?
472 IORI 0,4ARG ; 4 STRING CASE
473 HRLM 0,(P) ; LH IS FLAGS FOR THIS PROG
474 MOVSI E,-4 ; FIELDS TO FILL
476 RPARGL: GETYP 0,(AB) ; GET TYPE
477 CAIE 0,TCHSTR ; STRING?
478 JRST ARGCLB ; NO, JUST CLOBBER IT IN RAW
479 JUMPGE E,CPOPJ ; DON'T DO ANY MORE
480 PUSH TP,(AB) ; GET AN ARG
483 FPARS: PUSH TP,-1(TP) ; ANOTHER COPY
487 PUSHJ P,FLSSP ; NO LEADING SPACES
488 MOVEI A,0 ; WILL HOLD SIXBIT
489 MOVEI B,6 ; CHARS PER 6BIT WORD
490 MOVE C,[440600,,A] ; BYTE POINTER INTO A
492 FPARSL: HRRZ 0,-1(TP) ; GET COUNT
495 ILDB 0,(TP) ; CHAR TO 0
497 CAIE 0,"
\11 ; FILE NAME QUOTE?
502 ILDB 0,(TP) ; USE THIS
510 JRST NDFLD ; YES, TERMINATE THIS FIELD
511 CAIN 0,": ; DEVICE ENDED?
513 CAIN 0,"; ; SNAME ENDED
517 PUSHJ P,A0TO6 ; CONVERT TO 6BIT AND CHECK
519 JUMPE B,FPARSL ; IGNORE IF AREADY HAVE 6
523 ; HERE IF SPACE ENCOUNTERED
525 NDFLD: MOVEI D,(E) ; COPY GOODIE
526 PUSHJ P,FLSSP ; FLUSH REDUNDANT SPACES
527 JUMPE 0,PARSD ; NO CHARS LEFT
529 NFL0: PUSH P,A ; SAVE SIXBIT WORD
530 SKIPGE -1(P) ; SKIP IF STRING TO BE STORED
532 PUSH TP,$TAB ; PREVENT AB LOSSAGE
534 PUSHJ P,6TOCHS ; CONVERT TO STRING
537 NFL1: HRRZ 0,-1(TP) ; RESTORE CHAR COUNT
539 NFL2: MOVEI C,(D) ; COPY REL PNTR
540 SKIPGE -1(P) ; SKIP IF STRINGS TO BE STORED
546 NFL3: MOVSI A,N1SET ; FLAG IT
548 IORM A,-1(P) ; AND CLOBBER
549 MOVE D,T.SPDL+1(TB) ; GET P BASE
550 POP P,@SIXTBL(C) ; AND STORE SIXBIT OF IT
552 POP TP,-2(TP) ; MAKE NEW STRING POINTER
554 JUMPE 0,.+3 ; SKIP IF NO MORE CHARS
555 AOBJN E,FPARS ; MORE TO PARSE?
556 CPOPJ: POPJ P, ; RETURN, ALL DONE
558 SUB TP,[2,,2] ; FLUSH OLD STRING
560 ADD AB,[2,,2] ; BUMP ARG
561 JUMPL AB,RPARGL ; AND GO ON
562 CPOPJ1: AOS A,(P) ; PREPARE TO WIN
568 ; HERE IF STRING HAS ENDED
570 PARSD: PUSH P,A ; SAVE 6 BIT
571 MOVE A,-3(TP) ; CAN USE ARG STRING
574 JRST NFL2 ; AND CONTINUE
576 ; HERE IF JUST READ DEV
578 GOTDEV: MOVEI D,2 ; CODE FOR DEVICE
579 JRST GOTFLD ; GOT A FIELD
581 ; HERE IF JUST READ SNAME
584 GOTFLD: PUSHJ P,FLSSP
588 ; HERE FOR NON STRING ARG ENCOUNTERED
590 ARGCLB: SKIPGE (P) ; IF NOT STORING, CONSIDER THIS THE END
593 MOVE C,T.SPDL+1(TB) ; GET P-BASE
594 MOVE A,S.DEV(C) ; GET DEVICE
595 CAME A,[SIXBIT /INT /]; IS IT THE INTERNAL DEVICE
596 JRST TRYNET ; NO, COUD BE NET
597 MOVE A,0 ; OFFNEDING TYPE TO A
598 PUSHJ P,APLQ ; IS IT APPLICABLE
601 ADD AB,[2,,2] ; MUST BE LAST ARG
603 JRST CPOPJ1 ; ELSE SUCCESSFUL RETURN
604 TRYNET: CAIE 0,TFIX ; FOR NET DEV, ARGS MUST BE FIX
605 JRST WRONGT ; TREAT AS WRONG TYPE
606 MOVSI A,MSTNET ; BETTER BE NET EVENTUALLY
607 IORM A,(P) ; STORE FLAGS
609 MOVE B,1(AB) ; GET NUMBER
610 MOVEI 0,(E) ; MAKE SURE NOT DEVICE
613 PUSH P,B ; SAVE NUMBER
614 MOVEI D,(E) ; SET FOR TABLE OFFSETS
617 JRST NFL2 ; GO CLOBBER IT AWAY
621 ; ROUTINE TO FLUSH LEADING SPACES FROM A FIELD
623 FLSSP: HRRZ 0,-1(TP) ; GET CHR COUNNT
624 JUMPE 0,CPOPJ ; FINISHED STRING
625 FLSS1: MOVE B,(TP) ; GET BYTR
627 CAIE C,^Q ; DONT FLUSH CNTL-Q
630 MOVEM B,(TP) ; UPDATE BYTE POINTER
633 FLSS2: HRRM 0,-1(TP) ; UPDATE STRING
637 ;TABLE FOR STFUFFING SIXBITS AWAY
639 SIXTBL: SETZ S.NM1(D)
646 RDTBL: SETZ RDEVIC(B)
655 ; TENEX VERSION OF FILE NAME PARSER (ONLY ACCEPT ARGS IN SINGLE STRING)
658 RGPRS: MOVEI 0,NOSTOR
660 RGPARS: HRLM 0,(P) ; SAVE FOR STORE CHECKING
661 CAMGE AB,[-2,,] ; MULTI-STRING CASE POSSIBLE?
662 JRST TN.MLT ; YES, GO PROCESS
663 RGPRSS: GETYP 0,(AB) ; CHECK ARG TYPE
665 JRST WRONGT ; FOR NOW ONLY STRING ARGS WIN
668 PUSHJ P,FLSSP ; FLUSH LEADING SPACES
671 CHKLST: JUMPGE AB,CPOPJ1
672 SKIPGE (P) ; IF FROM OPEN, ALLOW ONE MORE
680 RGPRS1: PUSH P,[0] ; ALLOW A DEVICE SPEC
685 CAIE A,"< ; START "DIRECTORY" ?
686 JRST TN.N1 ; NO LOOK FOR NAME1
687 SETOM (P) ; DEV NOT ALLOWED
690 PUSHJ P,TN.CNT ; COUNT CHARS TO ">" OR "."
691 JUMPE B,ILLNAM ; RAN OUT
696 TN.SN1: PUSHJ P,TN.CNT ; COUNT CHARS TO ">"
697 JUMPE B,ILLNAM ; RAN OUT
703 TN.SN2: HRRZ B,-3(TP)
707 TN.SN3: CAIE A,"> ; SKIP IF WINS
709 PUSHJ P,TN.CPS ; COPY TO NEW STRING
714 TN.N1: PUSHJ P,TN.CNT
716 CAIE A,": ; GOT A DEVICE
724 JRST TN.SNM ; NOW LOOK FOR SNAME
729 MOVEM A,(P) ; SAVE END CHAR
730 PUSHJ P,TN.CPS ; GEN STRING
734 TN.N2: SKIPN A,(P) ; GET CHAR BACK
736 CAIN A,"; ; START VERSION?
738 CAIE A,". ; START NAME2?
739 JRST ILLNAM ; I GIVE UP!!!
740 HRRZ B,-1(TP) ; GET RMAINS OF STRING
741 PUSHJ P,TN.CPS ; AND COPY IT
744 RPDONE: SUB P,[1,,1] ; FLUSH TEMP
748 TN.CNT: HRRZ 0,-1(TP) ; CHAR COUNT
750 MOVEI B,0 ; INIT COUNT TO 0
752 TN.CN1: MOVEI A,0 ; IN CASE RUN OUT
753 SOJL 0,CPOPJ ; RUN OUT?
755 CAIE A,"
\16 ; TNEX FILE QUOTE?
758 IBP C ; SKIP QUOTED CHAT
773 TN.CPS: PUSH P,B ; # OF CHARS
774 MOVEI A,4(B) ; ADD 4 TO B IN A
776 PUSHJ P,IBLOCK ; GET BLOCK OF WORDS FOR STRING
778 POP P,C ; CHAR COUNT BACK
782 HRRI A,(C) ; CHAR STRING
783 MOVE D,B ; COPY BYTER
786 ILDB 0,(TP) ; GET CHAR
790 MOVNI C,(A) ; - LENGTH TO C
791 ADDB C,-1(TP) ; DECREMENT WORDS COUNT
792 TRNN C,-1 ; SKIP IF EMPTY
795 SOS -1(TP) ; ELSE FLUSH TERMINATOR
798 ILLNAM: ERRUUO EQUOTE ILLEGAL-TENEX-FILE-NAME
800 TN.MLT: MOVE A,AB ; AOBJN POINTER TO ARGS IN A
802 TN.ML1: GETYP 0,(A) ; IS THIS ARG OF RIGHT TYPE
806 JRST RGPRSS ; ASSUME SINGLE STRING
808 JUMPL A,TN.ML1 ; TRY NEXT ARG IF ANY LEFT
810 MOVEI 0,T.NM1(TB) ; 1ST WORD OF DESTINATION
811 HLRO A,AB ; MINUS NUMBER OF ARGS IN A
812 MOVN A,A ; NUMBER OF ARGS IN A
815 MOVEI A,7 ; IF MORE THAN 10 ARGS, PUT 7
816 ADD A,0 ; LAST WORD OF DESTINATION
818 BLT 0,(A) ; BLT 'EM IN
819 ADD AB,[10,,10] ; SKIP THESE GUYS
825 ; ROUTINE TO OPEN A CHANNEL FOR ANY DEVICE. NAMES ARE ASSUMED TO ALREADY
826 ; BE ON BOTH TP STACK AND P STACK
828 OPNCH: MOVE C,T.SPDL+1(TB) ; GET PDL BASE
830 ANDI A,1 ; JUST WANT I AND O
833 ; .TRANS S.DEV(C) ; UNDO ANY TRANSLATIONS
834 ; JRST TRLOST ; COMPLAIN
841 MOVE A,S.DEV(C) ; GET SIXBIT DEVICE CODE
844 IFE ITS,[HRLZS A,S.DEV(C)
847 MOVSI B,-NDEVS ; AOBJN COUNTER
849 MOVE 0,DEVSTB(B) ; GET ONE FROM TABLE
851 DEVLP1: AND E,D ; FLUSH POSSIBLE DIGITNESS
853 JRST CHDIGS ; MAKE SURE REST IS DIGITS
855 JUMPN D,DEVLP1 ; KEEP TRUCKING UNTIL DONE
857 ; WASN'T THAT DEVICE, MOVE TO NEXT
858 NXTDEV: AOBJN B,DEVLP
859 JRST ODSK ; UNKNOWN DEVICE IS ASSUMED TO BE DISK
862 OUSR: HRRZ A,S.DIR(C) ; BLOCK OR UNIT?
863 TRNE A,2 ; SKIP IF UNIT
865 PUSHJ P,OPEN1 ; OPEN IT
866 PUSHJ P,FIXREA ; AND READCHST IT
867 MOVE B,T.CHAN+1(TB) ; RESTORE CHANNEL
868 MOVE 0,[PUSHJ P,DOIOT] ; GET AN IOINS
878 OSTY: HLRZ A,S.DIR(C)
879 IORI A,10 ; THE DONT LOSE BIT (DONT HANG ON INPUT DO ON OUTPUT)
884 ; MAKE SURE DIGITS EXIST
887 JUMPE D,DISPA ; NO DIGITS, WIN IMMEDIATE
889 AND E,D ; LEAVES ONLY DIGITS, IF WINNING
892 JUMPG D,.-2 ; KEEP GOING TIL DIGITS LEFT SHIFTED
897 JRST NXTDEV ; NOT A DIGIT, LOSE
898 JUMPE E,DISPA ; IF THAT'S ALL THE CHARACTERS, WIN!
900 ROTC D,6 ; GET NEXT CHARACTER INTO D
901 JRST CHDIG1 ; GO TEST?
903 ; HERE TO DISPATCH IF SUCCESSFUL
910 ; DISK DEVICE OPNER COME HERE
912 ODSK: MOVE A,S.SNM(C) ; GET SNAME
913 .SUSET [.SSNAM,,A] ; CLOBBER IT
914 PUSHJ P,OPEN0 ; DO REAL LIVE OPEN
918 ; TENEX DISK FILE OPENER
920 ODSK: MOVE B,T.CHAN+1(TB) ; GET CHANNEL
921 PUSHJ P,STSTK ; EXPAND STRING ONTO STACK (E POINTS TO OLD P)
924 PUSHJ P,STRTO6 ; GET DIR NAME
928 CAME C,[SIXBIT /PRINAO/]
929 CAMN C,[SIXBIT /PRINTO/]
930 IORI D,100 ; TURN ON BIT TO SAY USE OLD FILE
931 MOVSI A,101 ; START SETTING UP BITS EXTRA BIT FOR MSB
932 TRNE D,1 ; SKIP IF INPUT
933 TRNE D,100 ; WITE OVER?
934 TLOA A,100000 ; FORCE OLD VERSION
935 TLO A,600000 ; FORCE NEW VERSION
936 HRROI B,1(E) ; POINT TO STRING
938 TDZA 0,0 ; SAVE FACT OF NO SKIP
939 MOVEI 0,1 ; INDICATE SKIPPED
940 POP P,C ; RECOVER OPEN MODE SIXBIT
941 MOVE P,E ; RESTORE PSTACK
942 JUMPE 0,GTJLOS ; FIND OUT WHAT HAPPENED
944 MOVE B,T.CHAN+1(TB) ; GET CHANNEL
945 HRRZ 0,-4(B) ; FUNNY MODE BITS
946 HRRZM A,CHANNO(B) ; SAVE IT
947 ANDI A,-1 ; READ Y TO DO OPEN
948 MOVSI B,440000 ; USE 36. BIT BYES
949 HRRI B,200000 ; ASSUME READ
950 ; CAMN C,[SIXBIT /READB/]
951 ; TRO B,2000 ; TURN ON THAWED IF READB
953 TRNE D,1 ; SKIP IF READ
954 HRRI B,300000 ; WRITE BIT
955 HRRZ 0,FSAV(TB) ; SEE IF REF DATE HACK
957 TRO B,400 ; SET DON'T MUNG REF DATE BIT
958 MOVE E,B ; SAVE BITS FOR REOPENS
961 MOVE B,[2,,11] ; GET LENGTH & BYTE SIZE
966 LDB 0,[300600,,-1(P)] ; GET BYTE SIZE
972 SIZEF ; USE OPENED SIZE
975 SIZASC: MOVEI 0,C.OPN+C.READ+C.DISK
976 TRNE D,1 ; SKIP FOR READ
977 MOVEI 0,C.OPN+C.PRIN+C.DISK
978 TRNE D,2 ; SKIP IF NOT BINARY FILE
983 HLRM 0,LSTCH-1(B) ; SAVE CURRENT LENGTH
985 HRRM 0,-2(B) ; MUNG THOSE BITS
986 ASH A,1 ; POINT TO SLOT
987 ADDI A,CHNL0 ; TO REAL SLOT
988 MOVEM B,1(A) ; SAVE CHANNEL
989 PUSHJ P,TMTNXS ; GET STRING FROM TENEX
990 MOVE B,CHANNO(B) ; JFN TO A
991 HRROI A,1(E) ; BASE OF STRING
992 MOVE C,[111111,,140001] ; WEIRD CONTROL BITS
994 MOVEI B,1(E) ; POINT TO START OF STRING
995 SUBM P,E ; RELATIVIZE E
996 PUSHJ P,TNXSTR ; MAKE INTO A STRING
997 SUB P,E ; BACK TO NORMAL
1000 PUSHJ P,RGPRS1 ; PARSE INTO FIELDS
1006 OPFLOS: MOVEI C,(A) ; SAVE ERROR CODE
1008 HRRZ A,CHANNO(B) ; JFN BACK TO A
1009 RLJFN ; TRY TO RELEASE IT
1011 MOVEI A,(C) ; ERROR CODE BACK TO A
1013 GTJLOS: MOVE B,T.CHAN+1(TB)
1014 PUSHJ P,TGFALS ; GET A FALSE WITH REASON
1017 STSTK: PUSH TP,$TCHAN
1019 MOVEI A,4+5 ; COUNT CHARS NEEDED (NEED LAST 0 BYTE)
1025 ANDI A,-1 ; TO 18 BITS
1027 IDIVI A,5 ; TO WORDS NEEDED
1028 POP P,C ; SAVE RET ADDR
1029 MOVE E,P ; SAVE POINTER
1030 PUSH P,[0] ; ALOCATE SLOTS
1032 PUSH P,C ; RET ADDR BACK
1033 INTGO ; IN CASE OVERFLEW
1035 MOVE B,(TP) ; IN CASE GC'D
1036 MOVE D,[440700,,1(E)] ; BYTE POINTER TO IT
1038 PUSHJ P,MOVSTR ; FLUSH IT ON
1040 JUMPN A,NLNMS ; USER GAVE NAME, USE IT (CAREFUL, RELIES ON
1044 MOVEI A,0 ; HERE TO SEE IF THIS IS REALLY L.N.
1047 LNMST ; LOOK UP LOGICAL NAME
1048 MOVNI A,1 ; NOT A LOGICAL NAME
1053 JUMPE A,ST.NM1 ; LOGICAL NAME, FLUSH SNAME
1054 HRRZ A,RSNAME-1(B) ; ANY SNAME AT ALL?
1055 JUMPE A,ST.NM1 ; NOPE, CANT HACK WITH IT
1059 PUSHJ P,MOVSTR ; SNAME UP
1062 ST.NM1: MOVEI A,RNAME1-1(B)
1072 MOVSTR: HRRZ 0,(A) ; CHAR COUNT
1073 MOVE A,1(A) ; BYTE POINTER
1076 IDPB C,D ; MUNG IT UP
1079 ; MAKE A TENEX ERROR MESSAGE STRING
1081 TGFALS: PUSH TP,$TCHAN
1083 PUSH P,A ; SAVE ERROR CODE
1084 PUSHJ P,TMTNXS ; STRING ON STACK
1085 HRROI A,1(E) ; POINT TO SPACE
1086 MOVE B,(E) ; ERROR CODE
1087 HRLI B,400000 ; FOR ME
1088 MOVSI C,-100. ; MAX CHARS
1089 ERSTR ; GET TENEX STRING
1093 MOVEI B,1(E) ; A AND B BOUND STRING
1094 SUBM P,E ; RELATIVIZE E
1095 PUSHJ P,TNXSTR ; BUILD STRING
1096 SUB P,E ; P BACK TO NORMAL
1098 IFE FNAMS, SUB P,[1,,1] ; FLUSH ERROR CODE SLOT
1128 PUSHJ P,IILIST ; BUILD LIST
1129 MOVSI A,TFALSE ; MAKE IT FALSE
1133 TGFLS1: MOVE P,E ; RESET STACK
1135 MOVE B,CHQUOTE UNKNOWN PROBLEM IN I/O
1139 ; OTHER BUFFERED DEVICES JOIN HERE
1143 PUSHJ P,FIXREA ; STORE THE "REAL" NAMES INTO THE CHANNEL
1145 OPBASC: MOVE C,T.SPDL+1(TB) ; C WAS CLOBBERED, GET IT BACK
1146 HRRZ A,S.DIR(C) ; FIND OUT IF OPEN IS ASCII OR WORD
1147 TRZN A,2 ; SKIP IF BINARY
1148 PUSHJ P,OPASCI ; DO IT FOR ASCII
1150 ; NOW SET UP IO INSTRUCTION FOR CHANNEL
1152 MAKION: MOVE B,T.CHAN+1(TB)
1154 JUMPE A,MAKIO1 ; JUMP IF INPUT
1155 MOVEI C,PUTCHR ; ELSE GET INPUT
1156 MOVEI 0,80. ; DEFAULT LINE LNTH
1162 MOVEM C,IOINS(B) ; STORE IT
1163 JUMPN A,OPNWIN ; GET AN EOF FORM FOR INPUT CHANNEL
1165 ; HERE TO CONS UP <ERROR END-OF-FILE>
1167 EOFMAK: MOVSI C,TATOM
1168 MOVE D,EQUOTE END-OF-FILE
1172 MOVE D,IMQUOTE ERROR
1174 MOVE D,T.CHAN+1(TB) ; RESTORE CHANNEL
1179 OPNWIN: MOVEI 0,10. ; SET UP RADIX
1180 MOVSI A,TCHAN ; OPEN SUCCEEDED, RET CHANNEL
1184 OPNRET: MOVE D,T.CHAN+1(TB) ; IN CASE WE RECYCLE IT
1185 MOVE C,(P) ; RET ADDR
1186 SUB P,[S.X3+2,,S.X3+2]
1187 SUB TP,[T.CHAN+2,,T.CHAN+2]
1191 ; HERE TO CREATE CHARACTER BUFFERS FOR ASCII I/O
1193 OPASCI: PUSH P,A ; CONTAINS MODE, SAVE IT
1194 MOVEI A,BUFLNT ; GET SIZE OF BUFFER
1195 PUSHJ P,IBLOCK ; GET STORAGE
1196 MOVSI 0,TWORD+.VECT. ; SET UTYPE
1197 MOVEM 0,BUFLNT(B) ; AND STORE
1199 SKIPE (P) ; SKIP IF INPUT
1201 MOVEI D,BUFLNT-1(B) ; REST BYTE POINTER
1202 OPASCA: HRLI D,010700
1203 MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK
1205 IORM 0,-2(B) ; TURN ON BUFFER BIT
1207 MOVEM D,BUFSTR(B) ; CLOBBER
1211 OPASCO: HRROI C,777776
1212 MOVEM C,(B) ; -1 THE BUFFER (LEAVE OFF LOW BIT)
1214 HRRI C,1(B) ; BUILD BLT POINTER
1215 BLT C,BUFLNT-1(B) ; ZAP
1216 MOVEI D,-1(B) ; START MAKING STRING POINTER
1217 HRRI A,BUFLNT*5 ; SET UP CHAR COUNT
1221 ; OPEN NON FILE ORIENTED DEVICES (NUL, PTR, PTP ETC.)
1226 OPTR: PUSHJ P,OPEN0 ; SET UP MODE AND OPEN
1227 SETZM S.NM1(C) ; CLOBBER UNINTERESTING FIELDS
1232 ; OPEN DEVICES THAT IGNORE SNAME
1240 ; INTERNAL CHANNEL OPENER
1242 OINT: HRRZ A,S.DIR(C) ; CHECK DIR
1243 CAIL A,2 ; READ/PRINT?
1244 JRST WRONGD ; NO, LOSE
1246 MOVE 0,INTINS(A) ; GET INS
1247 MOVE D,T.CHAN+1(TB) ; AND CHANNEL
1248 MOVEM 0,IOINS(D) ; AND CLOBBER
1249 MOVEI 0,C.OPN+C.READ
1251 MOVEI 0,C.OPN+C.PRIN
1253 SETOM STATUS(D) ; MAKE SURE NOT AA TTY
1254 PMOVEM T.XT(TB),INTFCN-1(D)
1256 ; HERE TO SAVE PSEUDO CHANNELS
1258 SAVCHN: HRRZ E,CHNL0+1 ; POINT TO CURRENT LIST
1260 PUSHJ P,ICONS ; CONS IT ON
1264 ; INT DEVICE I/O INS
1266 INTINS: PUSHJ P,GTINTC
1270 ; HERE TO OPEN THE NET DEVICE (I.E. THE ARPA NET)
1273 ONET: HRRZ A,S.DIR(C) ; DIRECTION CODE
1275 IORI A,4 ; TURN ON IMAGE BIT
1276 SKIPGE S.NM1(C) ; NAME1 I.E. LOCAL HOST GIVEN
1277 IORI A,10 ; NO, WE WILL LET ITS GIVE US ONE
1278 SKIPGE S.NM2(C) ; NORMAL OR "LISTEN"
1279 IORI A,20 ; TURN ON LISTEN BIT
1280 MOVEI 0,7 ; DEFAULT BYTE SIZE
1282 MOVEI 0,36. ; IMAGE WHICH IS 36
1283 SKIPN T.XT(TB) ; BYTE SIZE GIVEN?
1284 MOVEM 0,S.X1(C) ; NO, STORE DEFAULT
1285 SKIPG D,S.X1(C) ; BYTE SIZE REASONABLE?
1286 JRST RBYTSZ ; NO <0, COMPLAIN
1287 TRNE A,2 ; SKIP TO CHECK ASCII
1288 JRST ONET2 ; CHECK IMAGE
1289 CAIN D,7 ; 7-BIT WINS
1291 CAIE D,44 ; 36-BIT INDICATES BLOCK ASCII MODE
1293 IORI A,2 ; SET BLOCK FLAG
1295 IORI A,40 ; USE 8-BIT MODE
1296 CAIN D,10 ; IS IT RIGHT
1300 RBYTSZ: ERRUUO EQUOTE BYTE-SIZE-BAD
1303 ONET2: CAILE D,36. ; IMAGE SIZE REASONABLE?
1306 JRST ONET1 ; YES, DONT SET FIELD
1308 ASH D,9. ; POSITION FOR FIELD
1309 IORI A,40(D) ; SET IT AND ITS BIT
1311 ONET1: HRLM A,S.DIR(C) ; CLOBBER OPEN BLOCK
1312 MOVE E,A ; SAVE BLOCK MODE INFO
1313 PUSHJ P,OPEN1 ; DO THE OPEN
1316 ; CLOBBER REAL SLOTS FOR THE OPEN
1318 MOVEI A,3 ; GET STATE VECTOR
1324 MOVSI A,TFIX+.VECT. ; SET U TYPE
1329 PUSHJ P,INETST ; GET STATE
1331 POP P,A ; IS THIS BLOCK MODE
1332 MOVEI 0,80. ; POSSIBLE LINE LENGTH
1333 TRNE A,1 ; SKIP IF INPUT
1335 TRNN A,2 ; BLOCK MODE?
1337 TRNN A,4 ; ASCII MODE?
1338 JRST OPBASC ; GO SETUP BLOCK ASCII
1339 MOVE 0,[PUSHJ P,DOIOT]
1344 ; INTERNAL ROUTINE TO GET THE CURRENT STATE OF THE NETWROK CHANNEL
1346 INETST: MOVE A,S.NM1(C)
1350 LDB A,[1100,,S.SNM(C)]
1353 MOVE E,BUFRIN(B) ; GET STATE BLOCK
1354 INTST1: HRRE 0,S.X1(C)
1362 ; ACCEPT A CONNECTION
1364 MFUNCTION NETACC,SUBR
1366 PUSHJ P,ARGNET ; CHECK THAT ARG IS AN OPEN NET CHANNEL
1367 MOVE A,CHANNO(B) ; GET CHANNEL
1368 LSH A,23. ; TO AC FIELD
1371 JRST IFALSE ; RETURN FALSE
1376 ; FORCE SYSTEM NETWORK BUFFERS TO BE SENT
1383 SKIPA A,CHANNO(B) ; GET CHANNEL
1390 ; SUBR TO RETURN UPDATED NET STATE
1392 MFUNCTION NETSTATE,SUBR
1394 PUSHJ P,ARGNET ; IS IT A NET CHANNEL
1398 ; INTERNAL NETSTATE ROUTINE
1400 INSTAT: MOVE C,P ; GET PDL BASE
1401 MOVEI 0,S.X3 ; # OF SLOTS NEEDED
1404 ; RESTORED FROM MUDDLE 54. IT SEEMED TO WORK THERE, AND THE STUFF
1405 ; COMMENTED OUT HERE CERTAINLY DOESN'T.
1409 ; HRR D,CHANNO(B) ; SETUP FOR RFNAME CALL
1410 ; DOTCAL RFNAME,[D,[2003,,S.DEV],[2003,,S.NM1],[2003,,S.NM2],[2003,,S.SNM]]
1411 ; .LOSE %LSFIL ; THIS MAY NOT BE DESIRABLE, BUT I ASSUME WE CARE IF
1413 PUSHJ P,INETST ; INTO VECTOR
1419 ; INTERNAL ROUTINE TO CHECK FOR CORRECT CHANNEL TYPE
1425 MOVE B,1(AB) ; GET CHANNEL
1426 SKIPN CHANNO(B) ; OPEN?
1428 MOVE A,RDEVIC-1(B) ; GET DEV NAME
1432 CAME A,[SIXBIT /NET /]
1435 MOVE A,DIRECT-1(B) ; CHECK FOR A READ SOCKET
1438 MOVE B,1(AB) ; RESTORE CHANNEL
1444 ; TENEX NETWRK OPENING CODE
1446 ONET: MOVE B,T.CHAN+1(TB) ; GET CHANNEL
1450 PUSH P,[ASCII /NET:/] ; FOR STRINGS
1451 GETYP 0,RNAME1-1(B) ; CHECK TYPE
1452 CAIE 0,TFIX ; SKIP IF # SUPPLIED
1454 MOVE 0,RNAME1(B) ; GET IT
1458 ONET1: CAIE 0,TCHSTR
1476 CAIG 0,377 ;NEW STYLE 32 BIT HOST NUMBER?
1478 ;CONVERT HOSTS2 HOST NUMBERS TO INTERNET (TOPS-20) HOST NUMBERS
1480 LDB B,[001100,,0] ;HOST NUMBER: 1.1-1.9 ->
1481 DPB B,[201000,,A] ; 2.8-3.6
1482 LDB B,[111100,,0] ;IMP LOW BITS: 2.1-2.9 ->
1483 DPB B,[001000,,A] ; 1.1-1.8
1484 LDB B,[221100,,0] ;IMP HIGH BITS: 3.1-3.9 ->
1485 DPB B,[101000,,A] ; 1.9-2.7
1486 LDB B,[331100,,0] ;NETWORK: 4.1-4.9 ->
1487 DPB B,[301000,,A] ; 3.7-4.5
1489 ONET2A: PUSHJ P,FIXSTK
1498 ONET3: CAIE 0,TCHSTR
1508 ONET5: MOVE B,T.CHAN+1(TB)
1517 HRROI B,1(E) ; STRING POINTER
1518 GTJFN ; GET THE G.D JFN
1519 TDZA 0,0 ; REMEMBER FAILURE
1521 MOVE P,E ; RESTORE P
1522 JUMPE 0,GTJLOS ; CONS UP ERROR STRING
1525 HRRZM A,CHANNO(B) ; SAVE THE JFN
1540 TRNE D,1 ; SKIP FOR INPUT
1542 ANDI A,-1 ; ISOLATE JFCN
1544 JRST OPFLOS ; REPORT ERROR
1546 ASH A,1 ; POINT TO SLOT
1547 ADDI A,CHNL0 ; TO REAL SLOT
1548 MOVEM B,1(A) ; SAVE CHANNEL
1549 MOVE C,T.SPDL+1(TB) ; POINT TO P BASE
1550 HRRZ A,S.DIR(C) ; 0/ 0 FOR READ 0/ 1 FOR PRINT
1551 MOVEI 0,C.OPN+C.READ
1553 MOVEI 0,C.OPN+C.PRIN
1558 CVSKT ; GET ABS SOCKET #
1559 FATAL NETWORK BITES THE BAG!
1571 MOVE 0,[PUSHJ P,DONETO]
1572 TRNN C,1 ; SKIP FOR OUTPUT
1573 MOVE 0,[PUSHJ P,DONETI]
1575 MOVEI 0,80. ; LINELENGTH
1576 TRNE C,1 ; SKIP FOR INPUT
1578 MOVEI A,3 ; GET STATE UVECTOR
1587 MOVE A,CHANNO(B) ; GET JFN
1593 MOVEM B,(C) ; INITIAL STATE STORED
1597 ; DOIOT FOR TENEX NETWRK
1608 MOVEI 0,(A) ; POSSIBLE OUTPUT CHAR TO 0
1614 MOVEI A,(B) ; RET CHAR IN A
1637 JFFO 0,FIXS3 ; PUT OCTAL DIGITS INTO STIRNG
1649 ROTC 0,3 ; NEXT DIGIT
1658 TLNE C,760000 ; SKIP IF NEW WORD
1667 MOVEM D,RNAME2(E) ; UPDATE FOREIGN SOCHKET
1668 MOVEM C,RSNAME(E) ; AND HOST
1670 XCT ITSTRN(B) ; XLATE TO LOOK MORE LIKE ITS
1671 MOVEM B,(C) ; STORE STATE
1691 NLOSS: FATAL ILLEGAL NETWORK STATE
1693 NOPND: MOVE B,DIRECT(E) ; SEE IF READ OR PRINT
1694 ILDB B,B ; GET 1ST CHAR
1695 CAIE B,"R ; SKIP FOR READ
1697 SIBE ; SEE IF INPUT EXISTS
1701 MOVEM B,2(C) ; STORE BYTES IN STATE VECTOR
1702 MOVEI B,11 ; RETURN DATA PRESENT STATE
1705 NOPNDW: SOBE ; SEE IF OUTPUT PRESENT
1713 NCLSD: MOVE B,DIRECT(E)
1727 MFUNCTION NETSTATE,SUBR
1738 CAME A,MODES+1 ; PRINT OR PRINTB?
1744 NETRET: MOVE B,1(AB)
1748 MFUNCTION NETACC,SUBR
1758 ; HERE TO OPEN TELETYPE DEVICES
1760 OTTY: HRRZ A,S.DIR(C) ; GET DIR CODE
1761 TRNE A,2 ; SKIP IF NOT READB/PRINTB
1762 JRST WRONGD ; CANT DO THAT
1765 MOVE A,S.NM1(C) ; CHECK FOR A DIR
1767 CAMN A,[SIXBIT /.FILE./]
1768 CAME 0,[SIXBIT /(DIR)/]
1770 JRST OUTN ; DO IT THAT WAY
1772 HRRZ A,S.DIR(C) ; CHECK DIR
1776 PUSH P,S.DEV(C) ; SAVE THE SIXBIT DEV NAME
1777 ; HRLZS (P) ; POSTITION DEVICE NAME
1779 TTYLP: SKIPN D,1(E) ; CHANNEL OPEN?
1780 JRST TTYLP1 ; NO, GO TO NEXT
1781 MOVE A,RDEVIC-1(D) ; GET DEV NAME
1783 PUSHJ P,STRTO6 ; TO 6 BIT
1784 POP P,A ; GET RESULT
1786 JRST SAMTYQ ; COULD BE THE SAME
1787 TTYLP1: ADD E,[2,,2]
1789 SUB P,[1,,1] ; THIS ONE MUST BE UNIQUE
1790 TTYLP2: MOVE C,T.SPDL+1(TB) ; POINT TO P BASE
1791 HRRZ A,S.DIR(C) ; GET DIR OF OPEN
1792 SKIPE A ; IF OUTPUT,
1793 IORI A,20 ; THEN USE DISPLAY MODE
1794 HRLM A,S.DIR(C) ; STORE IN OPEN BLOCK
1795 PUSHJ P,OPEN2 ; OPEN THE TTY
1796 MOVE A,S.DEV(C) ; GET DEVICE NAME
1797 PUSHJ P,6TOCHS ; TO A STRING
1798 MOVE D,T.CHAN+1(TB) ; POINT TO CHANNEL
1801 MOVE C,T.SPDL+1(TB) ; RESTORE PDL BASE
1802 MOVE B,D ; CHANNEL TO B
1803 HRRZ 0,S.DIR(C) ; AND DIR
1805 TTY1: DOTCAL TTYGET,[CHANNO(B),[2000,,0],[2000,,A],[2000,,D]]
1807 DOTCAL TTYSET,[CHANNO(B),MODE1,MODE2,D]
1809 MOVE A,[PUSHJ P,GMTYO]
1811 DOTCAL RSSIZE,[CHANNO(B),[2000,,A],[2000,,D]]
1819 IOTMAK: HRLZ A,CHANNO(B) ; GET CHANNEL
1821 IOR A,[.IOT A] ; BUILD IOT
1822 MOVEM A,IOINS(B) ; AND STORE IT
1826 ; HERE IF POSSIBLY OPENING AN ALREADY OPEN TTY
1828 SAMTYQ: MOVE D,1(E) ; RESTORE CURRENT CHANNEL
1829 MOVE A,DIRECT-1(D) ; GET DIR
1832 POP P,A ; GET SIXBIT
1835 CAME A,MODES(C) ; SKIP IF DIFFERENT DIRECTION
1838 ; HERE IF A RE-OPEN ON A TTY
1840 HRRZ 0,FSAV(TB) ; IS IT FROM A FOPEN
1842 JRST RETOLD ; RET OLD CHANNEL
1845 PUSH TP,1(E) ; PUSH OLD CHANNEL
1847 PUSH TP,T.CHAN+1(TB)
1848 MOVE A,[PUSHJ P,CHNFIX]
1849 MOVEI PVP,0 ; SAY MIGHT BE NON-ATOMS
1853 RETOLD: MOVE B,1(E) ; GET CHANNEL
1854 AOS CHANNO-1(B) ; AOS REF COUNT
1856 SUB P,[1,,1] ; CLEAN UP STACK
1857 JRST OPNRET ; AND LEAVE
1860 ; ROUTINE TO PASS TO GCHACK TO FIX UP CHANNEL POINTER
1862 CHNFIX: CAIN C,TCHAN
1865 MOVE D,-2(TP) ; GET REPLACEMENT
1867 MOVEM D,1(B) ; CLOBBER IT AWAY
1872 MOVE C,T.SPDL+1(TB) ; POINT TO P BASE
1873 HRRZ 0,S.DIR(C) ; 0/ 0 FOR READ 0/ 1 FOR PRINT
1874 MOVE A,[PUSHJ P,INMTYO]
1877 MOVEI A,100 ; PRIM INPUT JFN
1879 MOVEI E,C.OPN+C.READ+C.TTY
1881 MOVEM B,CHNL0+2*100+1
1883 TNXTY1: MOVEM B,CHNL0+2*101+1
1884 MOVEI A,101 ; PRIM OUTPUT JFN
1885 MOVEI E,C.OPN+C.PRIN+C.TTY
1887 TNXTY2: MOVEM A,CHANNO(B)
1890 ; SETUP FUNNY BUFFER FOR TTY INPUT DEVICES
1892 TTYSPC: MOVEI A,EXTBFR ; GET EXTRA BUFFER
1893 PUSHJ P,IBLOCK ; GET BLOCK
1894 MOVE D,T.CHAN+1(TB) ;RESTORE CHANNEL POINTER
1906 MOVEM A,EXBUFR-1(D) ; FOR WAITING TTY BUFFERS
1907 SETZM EXBUFR(D) ; NIL LIST
1908 MOVEM B,BUFRIN(D) ;STORE IN CHANNEL
1909 MOVSI A,TUVEC ;MAKE SURE TYPE IS UNIFORM VECTOR
1911 MOVEI A,177 ;SET ERASER TO RUBOUT
1918 SETZM KILLCH(B) ;NO KILL CHARACTER NEEDED
1920 MOVEI A,33 ;BREAKCHR TO C.R.
1922 MOVEI A,"\ ;ESCAPER TO \
1924 MOVE A,[010700,,BYTPTR(E)] ;RELATIVE BYTE POINTER
1926 MOVEI A,14 ;BARF BACK CHARACTER FF
1931 ; SETUP DEFAULT TTY INTERRUPT HANDLER
1934 PUSH TP,MQUOTE CHAR,CHAR,INTRUP
1936 PUSH TP,[10] ; PRIORITY OF CHAR INT
1939 MCALL 3,EVENT ; 1ST MAKE AN EVENT EXIST
1943 PUSH TP,[QUITTER] ; DEFAULT HANDLER IS QUITTER
1946 ; BUILD A NULL STRING
1949 PUSHJ P,IBLOCK ; USE A BLOCK
1959 MOVE B,D ; CHANNEL TO B
1963 ; ROUTINE TO OPEN ITS CHANNEL WITHOUT .RCHST
1966 OPEN2: MOVEI A,S.DIR(C) ; POINT TO OPEN BLOCK
1967 PUSHJ P,MOPEN ; OPEN THE FILE
1969 MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK
1970 MOVEM A,CHANNO(B) ; SAVE THE CHANNEL
1973 ; FIX UP MODE AND FALL INTO OPEN
1975 OPEN0: HRRZ A,S.DIR(C) ; GET DIR
1976 TRNE A,2 ; SKIP IF NOT BLOCK
1977 IORI A,4 ; TURN ON IMAGE
1978 IORI A,2 ; AND BLOCK
1982 PUSH TP,C ; SAVE CRUFT TO CHECK FOR PRINTO, HA HA
1985 MOVE B,DIRECT(B) ; THIS KLUDGE THE MESS OF NDR
1988 POP P,D ; THE SIXBIT FOR KLUDGE
1989 POP P,A ; GET BACK THE RANDOM BITS
1991 CAME D,[SIXBIT /PRINAO/]
1992 CAMN D,[SIXBIT /PRINTO/]
1993 IORI A,100000 ; WRITEOVER BIT
1996 IORI A,10 ; DON'T CHANGE REF DATE
1997 OPEN9: HRLM A,S.DIR(C) ; AND STORE IT
1999 ; ROUTINE TO ATTEMPT TO OPEN A REAL ITS CHANNEL
2001 OPEN1: MOVEI A,S.DIR(C) ; POINT TO OPEN BLOCK
2004 MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK
2005 MOVEM A,CHANNO(B) ; CLOBBER INTO CHANNEL
2006 DOTCAL RFNAME,[A,[2003,,S.DEV],[2003,,S.NM1],[2003,,S.NM2],[2003,,S.SNM]]
2009 ; NOW CLOBBER THE TVP SLOT FOR THIS CHANNEL
2011 OPEN3: MOVE A,S.DIR(C)
2012 MOVEI 0,C.OPN+C.READ
2014 MOVEI 0,C.OPN+C.PRIN
2018 MOVE A,CHANNO(B) ; GET CHANNEL #
2020 ADDI A,CHNL0 ; POINT TO SLOT
2021 MOVEM B,1(A) ; NOT: TYPE ALREADY SETUP
2023 ; NOW GET STATUS WORD
2025 DOSTAT: HRRZ A,CHANNO(B) ; NOW GET STATUS WORD
2026 DOTCAL STATUS,[A,[2002,,STATUS]]
2031 ; HERE IF OPEN FAILS (CHANNEL IS IN A)
2033 OPNLOS: JUMPL A,NOCHAN ; ALL CHANNELS ARE IN USE
2034 LSH A,23. ; DO A .STATUS
2038 PUSHJ P,GFALS ; GET A FALSE WITH A MESSAGE
2039 SUB P,[1,,1] ; EXTRA RET ADDR FLUSHED
2040 JRST OPNRET ; AND RETURN
2045 IFN ITS, PUSHJ P,GFALS
2046 IFE ITS, PUSHJ P,TGFALS
2049 ; ROUTINE TO CONS UP FALSE WITH REASON
2051 GFALS: PUSH TP,$TCHAN
2053 PUSH P,[SIXBIT / ERR/] ; SET UP OPEN TO ERR DEV
2054 PUSH P,[3] ; SAY ITS FOR CHANNEL
2056 .OPEN 0,-2(P) ; USE CHANNEL 0 FOR THIS
2057 FATAL CAN'T OPEN ERROR DEVICE
2058 SUB P,[3,,3] ; DONT WANT OPEN BLOCK NOW
2060 MOVEI A,0 ; PREPARE TO BUILD STRING ON STACK
2061 EL1: PUSH P,[0] ; WHERE IT WILL GO
2062 MOVSI B,(<440700,,(P)>) ; BYTE POINTER TO TOP OF STACK
2063 EL2: .IOT 0,0 ; GET A CHAR
2064 JUMPL 0,EL3 ; JUMP ON -1,,3
2066 JRST EL3 ; YES, MAKE STRING
2067 CAIN 0,14 ; IGNORE FORM FEEDS
2068 JRST EL2 ; IGNORE FF
2069 CAIE 0,15 ; IGNORE CR & LF
2073 TLNE B,760000 ; SIP IF WORD FULL
2075 AOJA A,EL1 ; COUNT WORD AND GO
2089 MOVSI B,(<440700,,(P)>)
2091 IRP XX,,[RDEVIC,RSNAME,RNAME1,RNAME2]YY,,[0,72,73,40]
2102 SKIPN (P) ; ANY CHARS AT END?
2103 SUB P,[1,,1] ; FLUSH XTRA
2104 PUSH P,A ; PUT UP COUNT
2105 .CLOSE 0, ; CLOSE THE ERR DEVICE
2106 PUSHJ P,CHMAK ; MAKE STRING
2113 IFE FNAMS, MOVEI A,1
2120 MOVSI A,TFALSE ; MAKEIT A FALSE
2121 IFN FNAMS, SUB TP,[2,,2]
2128 MOVSI B,(<440700,,(P)>)
2139 ; ROUTINE TO FILL IN THE "REAL" SLOTS FOR THE CHANNEL
2142 IFE ITS, HRLZS S.DEV(C) ; KILL MODE BITS
2145 FIXRE1: MOVEI A,(D) ; COPY REL POINTER
2146 ADD A,T.SPDL+1(TB) ; POINT TO SLOT
2147 SKIPN A,(A) ; SKIP IF GOODIE THERE
2149 PUSHJ P,6TOCHS ; MAKE INOT A STRING
2150 MOVE C,RDTBL-S.DEV(D); GET OFFSET
2154 FIXRE2: AOBJN D,FIXRE1
2159 HRR A,CHANNO(B) ; GET CHANNEL
2160 DOTCAL OPEN,[A,-3(P),-2(P),-1(P),(P)]
2166 ;THIS ROUTINE CONVERTS MUDDLE CHARACTER STRINGS TO SIXBIT FILE NAMES
2169 PUSH P,E ;SAVE USEFUL FROB
2170 MOVEI E,(A) ; CHAR COUNT TO E
2172 CAIE A,TCHSTR ; IS IT ONE WORD?
2174 CAILE E,6 ; SKIP IF L=? 6 CHARS
2176 CHREAD: MOVEI A,0 ;INITIALIZE OUTPUT WORD
2177 MOVE D,[440600,,A] ;AND BYTE POINTER TO IT
2178 NEXCHR: SOJL E,SIXDON
2179 ILDB 0,B ; GET NEXT CHAR
2180 CAIN 0,^Q ; CNTL-Q, QUOTES NEXT CHAR
2182 JUMPE 0,SIXDON ;IF NULL, WE ARE FINISHED
2183 PUSHJ P,A0TO6 ; CONVERT TO SIXBIT
2184 IDPB 0,D ;DEPOSIT INTO SIX BIT
2185 JRST NEXCHR ; NO, GET NEXT
2186 SIXDON: SUB TP,[2,,2] ;FIX UP TP
2188 EXCH A,(P) ;LEAVE RESULT ON P-STACK
2189 JRST (A) ;NOW RETURN
2192 ;SUBROUTINE TO CONVERT SIXBIT TO ATOM
2196 MOVEI B,0 ;MAX NUMBER OF CHARACTERS
2197 PUSH P,[0] ;STRING WILL GO ON P SATCK
2198 JUMPE A,GETATM ; EMPTY, LEAVE
2199 MOVEI E,-1(P) ;WILL BE BYTE POINTER
2200 HRLI E,10700 ;SET IT UP
2201 PUSH P,[0] ;SECOND POSSIBLE WORD
2202 MOVE D,[440600,,A] ;INPUT BYTE POINTER
2203 6LOOP: ILDB 0,D ;START CHAR GOBBLING
2204 ADDI 0,40 ;CHANGET TOASCII
2205 IDPB 0,E ;AND STORE IT
2206 TLNN D,770000 ; SKIP IF NOT DONE
2208 TDNN A,MSKS(B) ; CHECK IF JUST SPACES LEFT
2209 AOJA B,GETATM ; YES, DONE
2210 AOJA B,6LOOP ;KEEP LOOKING
2211 6LOOP1: PUSH P,[6] ;IF ARRIVE HERE, STRING IS 2 WORDS
2213 GETATM: MOVEM B,(P) ;SET STRING LENGTH=1
2214 PUSHJ P,CHMAK ;MAKE A MUDDLE STRING
2228 A0TO6: CAIL 0,141 ;IF IT IS GREATER OR EQUAL TO LOWER A
2229 CAILE 0,172 ;BUT LESS THAN OR EQUAL TO LOWER Z
2231 SUBI 0,40 ;CONVERT TO UPPER CASE
2232 SUBI 0,40 ;NOW TO SIX BIT
2233 JUMPL 0,BAD6 ;CHECK FOR A WINNER
2238 ; SUBR TO TEST THE EXISTENCE OF FILES
2240 MFUNCTION FEXIST,SUBR,[FILE-EXISTS?]
2246 PUSH TP,P ; SAVE P-STACK BASE
2248 MOVSI E,-4 ; 4 THINGS TO PUSH
2250 IFN ITS, MOVE B,@RNMTBL(E)
2251 IFE ITS, MOVE B,@FETBL(E)
2256 CAIE 0,TCHSTR ; SKIP IF WINS
2259 IFN ITS, PUSHJ P,STRTO6 ; CONVERT TO SIXBIT
2262 ; PUSHJ P,ADDNUL ; NOT NEEDED, SINCE CONSED INTO ONE STRING-TAA
2264 PUSH TP,A ; DEFAULT TYPE AND VALUE GIVEN BY USER
2265 PUSH TP,B ; IN VALUE OF DEV, SNM, NM1, NM2
2271 IFN ITS, PUSH P,EXISTS(E) ; USE DEFAULT
2273 PUSH TP,FETYP(E) ; DEFAULT TYPE AND VALUE IF NO
2274 PUSH TP,FEVAL(E) ; DEFAULT GIVEN BY USER
2278 PUSHJ P,RGPRS ; PARSE THE ARGS
2279 JRST TMA ; TOO MANY ARGUMENTS
2282 MOVE 0,-3(P) ; GET SIXBIT DEV NAME
2284 CAMN 0,[SIXBITS /DSK /]
2285 MOVSI B,10 ; DONT SET REF DATE IF DISK DEV
2287 DOTCAL OPEN,[B,[17,,-3],[17,,-2],[17,,-1],[17,,0]]
2290 JRST FDLWON ; WON!!!
2291 .STATUS 0,A ; FIND THE STATUS OF CHANNEL BEFORE POPING
2297 SUBI B,10 ; GET B TO POINT CORRECTLY TO ARGS
2298 PUSHJ P,STSTK ; GET FILE NAME IN A STRING
2299 HRROI B,1(E) ; POINT B TO THE STRING
2302 JRST TDLLOS ; FILE DOES NOT EXIST
2303 RLJFN ; FILE EXIST SO RETURN JFN
2305 JRST FDLWON ; SUCCESS
2309 EXISTS: SIXBITS /DSK INPUT > /
2312 FETBL: SETZ IMQUOTE NM1
2322 FEVAL: 440700,,[ASCIZ /INPUT/]
2323 440700,,[ASCIZ /MUD/]
2324 440700,,[ASCIZ /DSK/]
2328 ; SUBR TO DELETE AND RENAME FILES
2330 MFUNCTION RENAME,SUBR
2336 PUSH TP,P ; SAVE P-STACK BASE
2337 GETYP 0,(AB) ; GET 1ST ARG TYPE
2339 CAIN 0,TCHAN ; CHANNEL?
2340 JRST CHNRNM ; MUST BE RENAME WHILE OPEN FOR WRITING
2344 PUSH P,[377777,,377777]
2346 MOVSI E,-4 ; 4 THINGS TO PUSH
2347 RNMALP: MOVE B,@RNMTBL(E)
2352 CAIE 0,TCHSTR ; SKIP IF WINS
2355 IFN ITS, PUSHJ P,STRTO6 ; CONVERT TO SIXBIT
2364 RNMLP1: PUSH P,RNSTBL(E) ; USE DEFAULT
2368 PUSHJ P,RGPRS ; PARSE THE ARGS
2369 JRST RNM1 ; COULD BE A RENAME
2371 ; HERE TO DELETE A FILE
2373 DELFIL: MOVE A,(P) ; AND GET SNAME
2375 DOTCAL DELETE,[[17,,-3],[17,,-2],[17,,-1],[17,,0]]
2376 JRST FDLST ; ANALYSE ERROR
2378 FDLWON: MOVSI A,TATOM
2386 MOVE A,(TP) ; GET BASE OF PDL
2387 MOVEI A,1(A) ; POINT TO CRAP
2388 CAMGE AB,[-3,,] ; SKIP IF DELETE
2389 HLLZS (A) ; RESET DEFAULT
2395 ADD AB,[2,,2] ; PAST ARG
2396 JUMPL AB,RNM1 ; GO TRY FOR RENAME
2397 MOVE P,(TP) ; RESTORE P STACK
2398 MOVEI C,(A) ; FOR RELEASE
2399 DELF ; ATTEMPT DELETE
2401 RLJFN ; MAKE SURE FLUSHED
2404 FDLWON: MOVSI A,TATOM
2415 POP P,A ; ERR NUMBER BACK
2417 PUSHJ P,TGFALS ; GET FALSE WITH REASON
2420 DELLOS: PUSH P,A ; SAVE ERROR
2424 ;TABLE OF REANMAE DEFAULTS
2431 RNSTBL: SIXBIT /DSK _MUDS_> /
2434 RNMTBL: SETZ IMQUOTE DEV
2439 RNSTBL: -1,,[ASCIZ /DSK/]
2441 -1,,[ASCIZ /_MUDS_/]
2444 ; HERE TO DO A RENAME
2446 RNM1: JUMPGE AB,TMA ; IF ARGS EXHAUSTED, MUST BE TOO MUCH STRING
2448 MOVE C,1(AB) ; GET ARG
2449 CAIN 0,TATOM ; IS IT "TO"
2451 JRST WRONGT ; NO, LOSE
2452 ADD AB,[2,,2] ; BUMP PAST "TO"
2455 MOVEM P,T.SPDL+1(TB) ; SAVE NEW P-BASE
2457 MOVEI 0,4 ; FOUR DEFAULTS
2458 PUSH P,-3(P) ; DEFAULT DEVICE IS CURRENT
2461 PUSHJ P,RGPRS ; PARSE THE NEXT STRING
2464 MOVE A,-7(P) ; FIX AND GET DEV1
2465 MOVE B,-3(P) ; SAME FOR DEV2
2469 POP P,A ; GET SNAME 2
2470 CAME A,(P)-3 ; SNAME 1
2473 POP P,-2(P) ; MOVE NAMES DOWN
2475 DOTCAL RENAME,[[17,,-4],[17,,-3],[17,,-2],A,[17,,-1],(P)]
2479 ; HERE FOR RENAME WHILE OPEN FOR WRITING
2481 CHNRNM: ADD AB,[2,,2] ; NEXT ARG
2483 MOVE B,-1(AB) ; GET CHANNEL
2484 SKIPN CHANNO(B) ; SKIP IF OPEN
2486 MOVE A,DIRECT-1(B) ; CHECK DIRECTION
2488 PUSHJ P,STRTO6 ; TO 6 BIT
2490 CAME A,[SIXBIT /PRINT/]
2491 CAMN A,[SIXBIT /PRINTB/]
2493 CAMN A,[SIXBIT /PRINAO/]
2495 CAME A,[SIXBIT /PRINTO/]
2498 ; SET UP .FDELE BLOCK
2502 MOVEM P,T.SPDL+1(TB)
2504 PUSH P,[SIXBIT /_MUDL_/]
2508 PUSHJ P,RGPRS ; PARSE THESE
2511 SUB P,[1,,1] ; SNAME/DEV IGNORED
2512 MOVE AB,ABSAV(TB) ; GET ORIG ARG POINTER
2514 MOVE A,CHANNO(B) ; ITS CHANNEL #
2515 DOTCAL RENMWO,[A,[17,,-1],(P)]
2517 MOVE A,CHANNO(B) ; ITS CHANNEL #
2518 DOTCAL RFNAME,[A,[2017,,-4],[2017,,-3],[2017,,-2],[2017,,-1]]
2520 MOVE A,-3(P) ; UPDATE CHANNEL
2521 PUSHJ P,6TOCHS ; GET A STRING
2539 MOVE A,(TP) ; PBASE BACK
2546 MOVEI C,(A) ; FOR RELEASE ATTEMPT
2552 MOVEI A,(C) ; MAKE SURR OTHER IS FLUSHED
2560 MOVEI A,(A) ; LNTH OF STRING
2562 JUMPN B,NONUAD ; DONT NEED TO ADD ONE
2567 PUSHJ P,CISTNG ; COPY OF STRING
2574 ; HERE FOR LOSING .FDELE
2577 FDLST: .STATUS 0,A ; GET STATUS
2579 PUSHJ P,GFALS ; ANALYZE IT
2583 ; SOME .FDELE ERRORS
2585 DEVDIF: ERRUUO EQUOTE DEVICE-OR-SNAME-DIFFERS
2587 \f; HERE TO RESET A READ CHANNEL
2589 MFUNCTION FRESET,SUBR,RESET
2595 MOVE B,1(AB) ;GET CHANNEL
2596 SKIPN IOINS(B) ; OPEN?
2597 JRST REOPE1 ; NO, IGNORE CHECKS
2599 MOVE A,STATUS(B) ;GET STATUS
2601 JUMPE A,REOPE1 ;IF IT CLOSED, JUST REOPEN IT, MAYBE?
2602 CAILE A,2 ;SKIPS IF TTY FLAVOR
2608 CAIN A,101 ; TTY-OUT
2615 REATT1: MOVEI B,DIRECT-1(B) ;POINT TO DIRECTION
2616 PUSHJ P,CHRWRD ;CONVERT TO A WORD
2618 CAME B,[ASCII /READ/]
2620 MOVE B,1(AB) ;RESTORE CHANNEL
2621 PUSHJ P,RRESET" ;DO REAL RESET
2624 REOPEN: PUSH TP,(AB) ;FIRST CLOSE IT
2627 MOVE B,1(AB) ;RESTORE CHANNEL
2629 ; SET UP TEMPS FOR OPNCH
2631 REOPE1: PUSH P,[0] ; WILL HOLD DIR CODE
2634 IRP A,,[DIRECT,RNAME1,RNAME2,RDEVIC,RSNAME,ACCESS]
2643 MOVE B,T.DIR+1(TB) ; GET DIRECTION
2644 PUSHJ P,CHMOD ; CHECK THE MODE
2645 MOVEM A,(P) ; AND STORE IT
2647 ; NOW SET UP OPEN BLOCK IN SIXBIT
2650 MOVSI E,-4 ; AOBN PNTR
2651 FRESE2: MOVE B,T.CHAN+1(TB)
2652 MOVEI A,@RDTBL(E) ; GET ITEM POINTER
2653 GETYP 0,-1(A) ; GET ITS TYPE
2656 MOVE B,(A) ; GET STRING
2659 FRESE3: AOBJN E,FRESE2
2665 PUSHJ P,STRTO6 ; RESULT ON STACK
2669 PUSH P,[0] ; PUSH UP SOME DUMMIES
2672 PUSHJ P,OPNCH ; ATTEMPT TO DO THEOPEN
2675 JRST FINIS ; LEAVE IF FALSE OR WHATEVER
2679 SETZM CHRPOS(B) ;INITIALIZE THESE PARAMETERS
2691 DOTCAL RSSIZE,[CHANNO(B),[2000,,C],[2000,,D]]
2705 ; INTERFACE TO REOPEN CLOSED CHANNELS
2707 OPNCHN: PUSH TP,$TCHAN
2712 REATTY: PUSHJ P,TTYOP2
2713 IFE ITS, SKIPN DEMFLG ; SKIP IF DEMONFLAG IS ON
2719 ; FUNCTION TO LIST ALL CHANNELS
2721 MFUNCTION CHANLIST,SUBR
2725 MOVEI A,N.CHNS-1 ;MAX # OF REAL CHANNELS
2727 MOVEI B,CHNL1 ;POINT TO FIRST REAL CHANNEL
2729 CHNLP: SKIPN 1(B) ;OPEN?
2730 JRST NXTCHN ;NO, SKIP
2731 HRRE E,(B) ; ABOUT TO FLUSH?
2732 JUMPL E,NXTCHN ; YES, FORGET IT
2733 MOVE D,1(B) ; GET CHANNEL
2734 HRRZ E,CHANNO-1(D) ; GET REF COUNT
2737 ADDI C,1 ;COUNT WINNERS
2738 SOJGE E,.-3 ; COUNT THEM
2742 SKIPN B,CHNL0+1 ;NOW HACK LIST OF PSUEDO CHANNELS
2750 MAKLST: ACALL C,LIST
2753 \f; ROUTINE TO RESTORE A CLOSED CHANNEL TO ITS PREVIOUS STATE
2756 REOPN: PUSH TP,$TCHAN
2758 SKIPN CHANNO(B) ; ONLY REAL CHANNELS
2762 MOVSI E,-4 ; SET UP POINTER FOR NAMES
2764 GETOPB: MOVE B,(TP) ; GET CHANNEL
2765 MOVEI A,@RDTBL(E) ; GET POINTER
2766 MOVE B,(A) ; NOW STRING
2768 PUSHJ P,STRTO6 ; LEAVES SIXBIT ON STACK
2774 PUSHJ P,STRTO6 ; GET DEV NAME IN SIXBIT
2776 MOVE B,(TP) ; RESTORE CHANNEL
2779 PUSHJ P,CHMOD ; CHECK FOR A VALID MODE
2781 IFN ITS, MOVE E,-3(P) ; GET DEVICE IN PROPER PLACE
2782 IFE ITS, HLRZS E,(P)
2783 MOVE B,(TP) ; RESTORE CHANNEL
2784 IFN ITS, CAMN E,[SIXBIT /DSK /]
2786 CAIE E,(SIXBIT /PS /)
2787 CAIN E,(SIXBIT /DSK/)
2788 JRST DISKH ; DISK WINS IMMEIDATELY
2789 CAIE E,(SIXBIT /SS /)
2790 CAIN E,(SIXBIT /SRC/)
2791 JRST DISKH ; DISK WINS IMMEIDATELY
2793 IFN ITS, CAMN E,[SIXBIT /TTY /] ; NO NEED TO RE-OPEN THE TTY
2794 IFE ITS, CAIN E,(SIXBIT /TTY/)
2797 AND E,[777700,,0] ; COULD BE "UTn"
2798 MOVE D,CHANNO(B) ; GET CHANNEL
2800 ADDI D,CHNL0 ; DON'T SEEM TO BE OPEN
2803 CAMN E,[SIXBIT /UT /]
2804 JRST REOPD ; CURRENTLY, CANT RESTORE UTAPE CHANNLES
2805 CAMN E,[SIXBIT /AI /]
2806 JRST REOPD ; CURRENTLY CANT RESTORE AI CHANNELS
2807 CAMN E,[SIXBIT /ML /]
2808 JRST REOPD ; CURRENTLY CANT RESTORE ML CHANNELS
2809 CAMN E,[SIXBIT /DM /]
2810 JRST REOPD ; CURRENTLY CANT RESTORE DM CHANNELS
2812 PUSH TP,$TCHAN ; TRY TO RESET IT
2824 REOPD0: SUB TP,[2,,2]
2828 DISKH: MOVE C,(P) ; SNAME
2832 DISKH: MOVEM A,(P) ; SAVE MODE WORD
2833 PUSHJ P,STSTK ; STRING TO STACK
2834 MOVE A,(E) ; RESTORE MODE WORD
2836 PUSH TP,E ; SAVE PDL BASE
2837 MOVE B,-2(TP) ; CHANNEL BACK TO B
2839 MOVE C,ACCESS(B) ; GET CHANNELS ACCESS
2840 TRNN A,2 ; SKIP IF NOT ASCII CHANNEL
2842 HRRZ D,ACCESS-1(B) ; IF PARTIAL WORD OUT
2843 IMULI C,5 ; TO CHAR ACCESS
2844 JUMPE D,DISKH1 ; NO SWEAT
2847 DISKH1: HRRZ D,BUFSTR-1(B) ; ANY CHARS IN MUDDLE BUFFER
2849 TRNN A,1 ; SKIP IF OUTPUT CHANNEL
2854 PUSHJ P,BYTDOP ; FIND LENGTH OF WHOLE BUFFER
2855 HLRZ D,(A) ; LENGTH + 2 TO D
2857 IMULI D,5 ; TO CHARS
2861 DISKH2: SUBI C,(D) ; UPDATE CHAR ACCESS
2862 IDIVI C,5 ; BACK TO WORD ACCESS
2864 IORI A,6 ; BLOCK IMAGE
2866 IORI A,100000 ; WRITE OVER BIT
2869 MOVE A,C ; ACCESS TO A
2870 PUSHJ P,GETFLN ; CHECK LENGTH
2871 CAIGE 0,(A) ; CHECK BOUNDS
2873 PUSHJ P,DOACCS ; AND ACESS
2874 JRST REOPD1 ; SUCCESS
2876 MOVE A,CHANNO(B) ; CLOSE THE G.D. CHANNEL
2882 DOTCAL ACCESS,[A,(P)]
2893 MOVEM 0,BSTO(PVP) ; IN CASE OF INTERRUPT
2904 GETFLN: MOVE 0,CHANNO(B) ; GET CHANNEL
2905 .CALL FILBLK ; READ LNTH
2912 402000,,0 ; STUFF RESULT IN 0
2918 SETZM 1(A) ; MAY GET A DIFFERENT JFN
2919 HRROI B,1(E) ; TENEX STRING POINTER
2920 MOVSI A,400001 ; MAKE SURE
2922 JRST RGTJL ; COMPLAIN
2924 HRRZM A,CHANNO(D) ; COULD HAVE CHANGED
2925 MOVE P,(TP) ; RESTORE P
2927 ASH A,1 ; MUNG ITS SLOT
2930 HLLOS (A) ; MARK CHANNEL NOT TO BE RELOOKED AT
2931 MOVE A,(P) ; MODE WORD BACK
2932 MOVE B,[440000,,200000] ; FLAG BITS
2933 TRNE A,1 ; SKIP FOR INPUT
2934 TRC B,300000 ; CHANGE TO WRITE
2935 MOVE A,CHANNO(D) ; GET JFN
2938 MOVE E,C ; LENGTH TO E
2939 SIZEF ; GET CURRENT LENGTH
2941 CAMGE B,E ; STILL A WINNER
2943 MOVE A,CHANNO(D) ; JFN
2947 SUB TP,[2,,2] ; FLUSH PDL POINTER
2950 ROPFLS: MOVE A,-2(TP)
2952 CLOSF ; ATTEMPT TO CLOSE
2953 JFCL ; IGNORE FAILURE
2968 PSUEDO: AOS (P) ; ASSUME SUCCESS FOR NOW
2969 MOVEI B,RDEVIC-1(B) ; SEE WHAT DEVICE IS
2972 JRST REOPD0 ; NO, RETURN HAPPY
2973 IFN 0,[ CAME B,[ASCII /E&S/] ; DISPLAY ?
2974 CAMN B,[ASCII /DIS/]
2975 SKIPA B,(TP) ; YES, REGOBBLE CHANNEL AND CONTINUE
2976 JRST REOPD0 ; NO, RETURN HAPPY
2978 SOS (P) ; DISPLAY DID NOT REOPEN, UNDO ASSUMPTION OF SUCCESS
2981 \f;THIS PROGRAM CLOSES THE SPECIFIED CHANNEL
2983 MFUNCTION FCLOSE,SUBR,[CLOSE]
2985 ENTRY 1 ;ONLY ONE ARG
2986 GETYP A,(AB) ;CHECK ARGS
2987 CAIE A,TCHAN ;IS IT A CHANNEL
2989 MOVE B,1(AB) ;PICK UP THE CHANNEL
2990 HRRZ A,CHANNO-1(B) ; GET REF COUNT
2991 SOJGE A,CFIN5 ; NOT READY TO REALLY CLOSE
2992 CAME B,TTICHN+1 ; CHECK FOR TTY
2995 MOVE A,[JRST CHNCLS]
2996 MOVEM A,IOINS(B) ;CLOBBER THE IO INS
2997 MOVE A,RDEVIC-1(B) ;GET THE NAME OF THE DEVICE
3001 IFE ITS, HLRZS A,(P)
3002 MOVE B,1(AB) ; RESTORE CHANNEL
3004 CAME A,[SIXBIT /E&S /]
3005 CAMN A,[SIXBIT /DIS /]
3007 MOVE B,1(AB) ; IN CASE CLOBBERED BY DISCLS
3008 SKIPN A,CHANNO(B) ;ANY REAL CHANNEL?
3009 JRST REMOV ; NO, EITHER CLOSED OR PSEUDO CHANNEL
3011 MOVE A,DIRECT-1(B) ; POINT TO DIRECTION
3013 PUSHJ P,STRTO6 ; CONVERT TO WORD
3015 IFN ITS, LDB E,[360600,,(P)] ; FIRST CHAR OD DEV NAME
3016 IFE ITS, LDB E,[140600,,(P)] ; FIRST CHAR OD DEV NAME
3017 CAIE E,'T ; SKIP IF TTY
3019 CAME A,[SIXBIT /READ/] ; SKIP IF WINNER
3022 MOVE B,1(AB) ; IN ITS CHECK STATUS
3023 LDB A,[600,,STATUS(B)]
3028 PUSH TP,CHQUOTE CHAR
3031 MCALL 2,OFF ; TURN OFF INTERRUPT
3038 TLZ A,400000 ; FOR JFN RELEASE
3039 CLOSF ; CLOSE THE FILE AND RELEASE THE JFN
3044 ADDI A,CHNL0+1 ;POINT TO THIS CHANNELS LSOT
3046 SETZM (A) ;AND CLOBBER IT
3051 MOVSI A,TCHAN ;RETURN THE CHANNEL
3054 CLSTTY: ERRUUO EQUOTE ATTEMPT-TO-CLOSE-TTY-CHANNEL
3057 REMOV: MOVEI D,CHNL0+1 ;ATTEMPT TO REMOVE FROM PSUEDO CHANNEL LIST
3058 REMOV0: SKIPN C,D ;FOUND ON LIST ?
3059 JRST CFIN2 ;NO, JUST IGNORE THIS CLOSED CHANNEL
3060 HRRZ D,(C) ;GET POINTER TO NEXT
3061 CAME B,(D)+1 ;FOUND ?
3063 HRRZ D,(D) ;YES, SPLICE IT OUT
3068 ; CLOSE UP ANY LEFTOVER BUFFERS
3071 ; CAME A,[SIXBIT /PRINTO/]
3072 ; CAMN A,[SIXBIT /PRINTB/]
3074 ; CAME A,[SIXBIT /PRINT/]
3076 MOVE B,1(AB) ; GET CHANNEL
3077 HRRZ A,-2(B) ;GET MODE BITS
3080 GETYP 0,BUFSTR-1(B) ; IS THERE AN OUTPUT BUFFER
3096 CFINX1: HLLZS ACCESS-1(B)
3099 CFIN5: HRRM A,CHANNO-1(B)
3101 \f;SUBR TO DO .ACCESS ON A READ CHANNEL
3102 ;FORM: <ACCESS CHANNEL FIX-NUMBER>
3103 ;POSITIONS CHANNEL AT CHARACTER POSN FIX-NUMBER
3106 MFUNCTION MACCESS,SUBR,[ACCESS]
3107 ENTRY 2 ;ARGS: CHANNEL AND FIX-NUMBER
3109 ;CHECK ARGUMENT TYPES
3111 CAIE A,TCHAN ;FIRST ARG SHOULD BE CHANNEL
3113 GETYP A,2(AB) ;TYPE OF SECOND
3114 CAIE A,TFIX ;SHOULD BE FIX
3117 ;CHECK DIRECTION OF CHANNEL
3118 MOVE B,1(AB) ;B GETS PNTR TO CHANNEL
3119 ; MOVEI B,DIRECT-1(B) ;GET DIRECTION OF CHANNEL
3120 ; PUSHJ P,CHRWRD ;GRAB THE CHAR STRNG
3122 ; CAME B,[<ASCII /PRINT/>+1]
3123 HRRZ A,-2(B) ; GET MODE BITS
3127 SKIPE C,BUFSTR(B) ;SEE IF WE MUST FLUSH PART BUFFER
3131 ; CAMN B,[ASCIZ /READ/]
3133 ; CAME B,[ASCIZ /READB/] ; READB CHANNEL?
3135 ; AOS (P) ; SET INDICATOR FOR BINARY MODE
3137 ;CHECK THAT THE CHANNEL IS OPEN
3138 MACC: MOVE B,1(AB) ;GET BACK PTR TO CHANNEL
3141 JRST CHNCLS ;IF CHNL CLOSED => ERROR
3143 ;COMPUTE ACCESS PNTR TO ACCESS WORD CHAR IS IN
3144 ;REMAINDER IS NUMBER OF TIMES TO INCR BYTE POINTER
3145 ADEVOK: SKIPGE C,3(AB) ;GET CHAR POSN
3146 ERRUUO EQUOTE NEGATIVE-ARGUMENT
3148 TRNN E,C.BIN ; SKIP FOR BINARY FILE
3168 HRRM 0,LSTCH-1(B) ; UPDATE "LARGEST"
3169 NLSTCH: MOVE A,CHANNO(B) ;A GETS REAL CHANNEL NUMBER
3172 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
3177 SFPTR ; DO IT IN TENEX
3179 MOVE B,1(AB) ; RESTORE CHANNEL
3181 ; POP P,E ; CHECK FOR READB MODE
3183 JRST ACCOUT ; PRINT TYPE CHANNEL, GO DO IT
3184 SKIPE BUFSTR(B) ; IS THERE A READ BUFFER TO FLUSH
3186 SETZM LSTCH(B) ; CLEAR OUT POSSIBLE EOF INDICATOR
3189 ;NOW FORCE GETCHR TO DO A .IOT FIRST THING
3190 MOVEI C,BUFSTR-1(B) ; FIND END OF STRING
3192 SUBI A,2 ; LAST REAL WORD
3195 HLLZS BUFSTR-1(B) ; CLOBBER CHAR COUNT
3196 SETZM LSTCH(B) ;CLOBBER READ'S HIDDEN CHARACTER
3198 ;NOW DO THE APPROPRIATE NUM OF BYTE ADVANCEMENTS
3200 ADVPTR: PUSHJ P,GETCHR
3201 MOVE B,1(AB) ;RESTORE IN CASE CLOBBERED
3204 DONADV: MOVE C,3(AB) ;FIXUP ACCESS SLOT IN CHNL
3207 MOVE A,$TCHAN ;TYPE OF RESULT = "CHANNEL"
3208 JRST FINIS ;DONE...B CONTAINS CHANNEL
3211 ACCFAI: ERRUUO EQUOTE ACCESS-FAILURE
3213 ACCOUT: SKIPN C,BUFSTR(B) ; FIXUP BUFFER?
3223 ACCOU1: TRNE E,C.BIN ; FINISHED FOR BINARY CHANNELS
3226 JUMPE D,DONADV ; THIS CASE OK
3228 MOVE A,CHANNO(B) ; GET LAST WORD
3233 MOVE B,[444400,,E] ; READ THE WORD
3239 MOVE B,1(AB) ; CHANNEL BACK
3247 IFN ITS, ERRUUO EQUOTE CANT-ACCESS-ASCII-ON-ITS
3250 ;WRONG TYPE OF DEVICE ERROR
3251 WRDEV: ERRUUO EQUOTE NON-DSK-DEVICE
3253 ; BINARY READ AND PRINT ROUTINES
3255 MFUNCTION PRINTB,SUBR
3259 PBFL: PUSH P,. ; PUSH NON-ZERONESS
3263 MFUNCTION READB,SUBR
3275 GETYP 0,(AB) ; SHOULD BE UVEC OR STORE
3282 JRST WTYP1 ; ELSE LOSE
3283 BINI2: MOVE B,1(AB) ; GET IT
3285 SUBI B,(C) ; POINT TO DOPE
3287 PUSHJ P,SAT" ; GET ITS ST.ALOC.TYPE
3290 BYTOK: GETYP 0,2(AB)
3291 CAIE 0,TCHAN ; BETTER BE A CHANNEL
3293 MOVE B,3(AB) ; GET IT
3294 ; MOVEI B,DIRECT-1(B) ; GET DIRECTION OF
3295 ; PUSHJ P,CHRWRD ; INTO 1 WORD
3298 ; CAMN B,[ASCII /READB/]
3300 ; CAMN B,[<ASCII /PRINT/>+1]
3301 HRRZ A,-2(B) ; MODE BITS
3302 TRNN A,C.BIN ; IF NOT BINARY
3307 ; JUMPL E,WRONGD ; LOSER
3308 CAME E,(P) ; CHECK WINNGE
3310 MOVE B,3(AB) ; GET CHANNEL BACK
3311 SKIPN A,IOINS(B) ; OPEN?
3312 PUSHJ P,OPENIT ; LOSE
3313 CAMN A,[JRST CHNCLS]
3314 JRST CHNCLS ; LOSE, CLOSED
3315 JUMPN E,BUFOU1 ; JUMP FOR OUTPUT
3317 CAML AB,[-5,,] ; SKIP IF EOF GIVEN
3329 BINI5: SKIPE LSTCH(B) ; INDICATES IF EOF HIT
3331 GETYP 0,(AB) ; BRANCH BASED ON BYTE SIZE
3335 MOVE A,1(AB) ; GET VECTOR
3336 PUSHJ P,PGBIOI ; READ IT
3337 HLRE C,A ; GET COUNT DONE
3338 HLRE D,1(AB) ; AND FULL COUNT
3339 SUB C,D ; C=> TOTAL READ
3341 JUMPGE A,BINIOK ; NOT EOF YET
3344 MOVSI A,TFIX ; RETURN AMOUNT ACTUALLY READ
3353 LDB B,[300600,,1(AB)]
3357 HRRZ A,(AB) ; GET BYTE STRING LENGTH
3359 MOVSS A ; MAKE FUNNY BYTE POINTER
3363 HLL C,1(AB) ; GET START OF BPTR
3366 HLRE C,A ; GET COUNT DONE
3369 HRRZ D,(AB) ; AND FULL COUNT
3370 ADD D,C ; C=> TOTAL READ
3371 LDB E,[300600,,1(AB)]
3376 SKIPGE C ; NOT EOF YET
3385 BUFOU1: SKIPE BUFSTR(B) ; ANY BUFFERS AROUND?
3386 PUSHJ P,BFCLS1 ; GET RID OF SAME
3395 GETYP 0,(AB) ; BRANCH BASED ON BYTE SIZE
3403 BYTO1: MOVE A,(AB) ; RET VECTOR ETC.
3413 LDB B,[300600,,1(AB)]
3417 HRRZ A,(AB) ; GET BYTE SIZE
3419 MOVSS A ; MAKE FUNNY BYTE POINTER
3421 ADDI A,1 ; COMPENSATE FOR PGBIOT DOING THE WRONG THING
3422 HLL C,1(AB) ; GET START OF BPTR
3425 LDB D,[300600,,1(AB)]
3438 BINEOF: PUSH TP,EOFCND-1(B)
3442 MCALL 1,FCLOSE ; CLOSE THE LOSER
3447 PUSHJ P,OPNCHN ;TRY TO OPEN THE LOSER
3448 JUMPE B,CHNCLS ;FAIL
3451 \f; THESE SUBROUTINES BY NDR 9/16/73 TO FACILITATE THE
3452 ; TYPES OF IO NECESSARY TO MAKE MORE EFFICIENT USE OF
3453 ; THE NETWORK AND DO RELATED FILE TRANSFER TYPE OF JOBS.
3455 R1CHAR: SKIPN A,LSTCH(B) ; CHAR READING ROUTINE FOR FCOPY
3457 TLO A,200000 ; ^@ BUG
3460 JUMPL A,.+2 ; IN CASE OF -1 ON STY
3461 TRZN A,400000 ; EXCL HACKER
3463 MOVEM A,LSTCH(B) ; SAVE DE-EXCLED CHAR
3469 CAIE C,5 ; IF DIRECTION IS 5 LONG THEN READB
3473 AOS ACCESS(B) ; EVERY FIFTY INCREMENT
3477 R1CH1: AOS ACCESS(B)
3481 W1CHAR: CAIE A,15 ; CHAR WRITING ROUTINE, TEST FOR CR
3485 CAIE A,12 ; TEST FOR LF
3486 AOS CHRPOS(B) ; IF NOT LF AOS CHARACTE5R POSITION
3487 CAIE A,14 ; TEST FOR FORM FEED
3489 SETZM CHRPOS(B) ; IF FORM FEED ZERO CHARACTER POSITION
3490 SETZM LINPOS(B) ; AND LINE POSITION
3491 CAIE A,11 ; IS THIS A TAB?
3496 IMULI C,8. ; FIX UP CHAR POS FOR TAB
3497 MOVEM C,CHRPOS(B) ; AND SAVE
3499 HRRZ C,-2(B) ; GET BITS
3500 TRNN C,C.BIN ; SIX LONG MUST BE PRINTB
3508 W1CH1: AOS ACCESS(B)
3515 R1C: SUBM M,(P) ;LITTLE ENTRY FOR COMPILED STUFF
3516 ; PUSH TP,$TCHAN ;SAVE THE CHANNEL TO BLESS IT
3518 ; MOVEI B,DIRECT-1(B)
3521 ; CAME B,[ASCIZ /READ/]
3522 ; CAMN B,[ASCII /READB/]
3525 HRRZ A,-2(B) ; GET MODE BITS
3528 SKIPN IOINS(B) ; IS THE CHANNEL OPEN
3529 PUSHJ P,OPENIT ; NO, GO DO IT
3530 PUSHJ P,GRB ; MAKE SURE WE HAVE A READ BUFFER
3531 PUSHJ P,R1CHAR ; AND GET HIM A CHARACTER
3532 JRST MPOPJ ; THATS ALL FOLKS
3541 PUSH P,A ; ASSEMBLER ENTRY TO OUTPUT 1 CHAR
3542 ; MOVEI B,DIRECT-1(B)
3543 ; PUSHJ P,CHRWRD ; INTERNAL CALL TO W1CHAR
3545 ; CAME B,[ASCII /PRINT/]
3546 ; CAMN B,[<ASCII /PRINT/>+1]
3554 SKIPN IOINS(B) ; MAKE SURE THAT IT IS OPEN
3557 POP P,A ; GET THE CHAR TO DO
3560 ; ROUTINES TO REPLACE XCT IOINS(B) FOR INPUT AND OUTPUT
3561 ; THEY DO THE XCT THEN CHECK OUT POSSIBLE SCRIPTAGE--BLECH.
3565 RXCT: XCT IOINS(B) ; READ IT
3569 DOSCPT: PUSH TP,$TCHAN
3571 PUSH P,A ; AND SAVE THE CHAR AROUND
3573 SKIPN SCRPTO(B) ; IF ZERO FORGET IT
3574 JRST SCPTDN ; THATS ALL THERE IS TO IT
3575 PUSH P,C ; SAVE AN ACCUMULATOR FOR CLEANLINESS
3576 GETYP C,SCRPTO-1(B) ; IS IT A LIST
3580 PUSH TP,[0] ; SAVE A SLOT FOR THE LIST
3581 MOVE C,SCRPTO(B) ; GET THE LIST OF SCRIPT CHANNELS
3582 SCPT1: GETYP B,(C) ; GET THE TYPE OF THIS SCRIPT CHAN
3584 JRST BADCHN ; IF IT ISN'T A CHANNEL, COMPLAIN
3585 HRRZ B,(C) ; GET THE REST OF THE LIST IN B
3586 MOVEM B,(TP) ; AND STORE ON STACK
3587 MOVE B,1(C) ; GET THE CHANNEL IN B
3588 MOVE A,-1(P) ; AND THE CHARACTER IN A
3589 PUSHJ P,W1CI ; GO TO INTERNAL W1C, IT BLESSES GOODIES
3590 SKIPE C,(TP) ; GET THE REST OF LIST OF CHANS
3591 JRST SCPT1 ; AND CYCLE THROUGH
3592 SUB TP,[2,,2] ; CLEAN OFF THE LIST OF CHANS
3593 POP P,C ; AND RESTORE ACCUMULATOR C
3594 SCPTDN: POP P,A ; RESTORE THE CHARACTER
3595 POP TP,B ; AND THE ORIGINAL CHANNEL
3597 POPJ P, ; AND THATS ALL
3600 ; SUBROUTINE TO COPY FROM INCHAN TO OUTCHAN UNTIL EOF HIT
3601 ; ON THE INPUT CHANNEL
3602 ; CALL IS <FILECOPY IN OUT> WHERE DEFAULTS ARE INCHAN AND OUTCHAN
3604 MFUNCTION FCOPY,SUBR,[FILECOPY]
3609 JRST WNA ; TAKES FROM 0 TO 2 ARGS
3611 JUMPE 0,.+4 ; NO FIRST ARG?
3613 PUSH TP,1(AB) ; SAVE IN CHAN
3616 MOVE B,IMQUOTE INCHAN
3620 HLRE 0,AB ; CHECK FOR SECOND ARG
3621 CAML 0,[-2] ; WAS THERE MORE THAN ONE ARG?
3623 PUSH TP,2(AB) ; SAVE SECOND ARG
3626 MOVE A,$TATOM ; LOOK UP OUTCHAN AS DEFAULT
3627 MOVE B,IMQUOTE OUTCHAN
3630 PUSH TP,B ; AND SAVE IT
3633 MOVE B,-2(TP) ; INPUT CHANNEL
3634 MOVEI 0,C.READ ; INDICATE INPUT
3635 PUSHJ P,CHKCHN ; CHECK FOR GOOD CHANNEL
3637 MOVE B,(TP) ; GET OUT CHAN
3638 MOVEI 0,C.PRIN ; INDICATE OUT CHAN
3639 PUSHJ P,CHKCHN ; CHECK FOR GOOD OUT CHAN
3641 PUSH P,[0] ; COUNT OF CHARS OUTPUT
3644 PUSHJ P,GRB ; MAKE SURE WE HAVE READ BUFF
3646 PUSHJ P,GWB ; MAKE SURE WE HAVE WRITE BUFF
3650 PUSHJ P,R1CHAR ; GET A CHAR
3651 JUMPL A,FCDON ; IF A NEG NUMBER WE GOT EOF
3652 MOVE B,(TP) ; GET OUT CHAN
3653 PUSHJ P,W1CHAR ; SPIT IT OUT
3654 AOS (P) ; INCREMENT COUNT
3657 FCDON: SUB TP,[2,,2] ; POP OFF OUTCHAN
3658 MCALL 1,FCLOSE ; CLOSE INCHAN
3660 POP P,B ; GET CHAR COUNT TO RETURN
3663 CHKCHN: PUSH P,0 ; CHECK FOR GOOD TASTING CHANNEL
3668 JRST CHKBDC ; GO COMPLAIN IN RIGHT WAY
3669 ; MOVEI B,DIRECT-1(B)
3672 ; MOVE C,(P) ; GET CHAN DIRECT
3673 HRRZ C,-2(B) ; MODE BITS
3678 ; ADDI C,2 ; TEST FOR READB OR PRINTB ALSO
3679 ; CAME B,CHKT(C) ; TEST FOR CORRECT DIRECT
3682 SKIPN IOINS(B) ; MAKE SURE IT IS OPEN
3683 PUSHJ P,OPENIT ; IF ZERO IOINS GO OPEN IT
3685 POP P, ; CLEAN UP STACKS
3697 CAMLE 0,D ; SEE IF THIS WAS HIS ARG OF DEFAULT
3702 \f; FUNCTIONS READSTRING AND PRINTSTRING WORK LIKE READB AND PRINTB,
3703 ; THAT IS THEY READ INTO AND OUT OF STRINGS. IN ADDITION BOTH ACCEPT
3704 ; AN ADDITIONAL ARGUMENT WHICH IS THE NUMBER OF CHARS TO READ OR PRINT, IF
3705 ; IT IS DESIRED FOR THIS TO BE DIFFERENT THAN THE LENGTH OF THE STRING.
3707 ; FORMAT IS <READSTRING .STRING .INCHANNEL .EOFCOND .MAXCHARS>
3708 ; AND BOTH SUBRS RETURN THE NUMBER OF CHARS READ OR WRITTEN
3710 ; FORMAT FOR PRINTSTRING IS <PRINTSTRING .STRING .OUTCHANNEL .MAXCHARS>
3712 ; THESE WERE CODED 9/16/73 BY NEAL D. RYAN
3714 MFUNCTION RSTRNG,SUBR,READSTRING
3717 PUSH P,[0] ; FLAG TO INDICATE READING
3721 JRST WNA ; CHECK THAT IT HAS FROM 1 TO 4 ARGS
3724 MFUNCTION PSTRNG,SUBR,PRINTSTRING
3727 PUSH P,[1] ; FLAG TO INDICATE WRITING
3731 JRST WNA ; CHECK THAT IT HAS FROM 1 TO 3 ARGS
3733 STRIO1: PUSH TP,[0] ; SAVE SLOT ON STACK
3736 CAIE 0,TCHSTR ; MAKE SURE WE GOT STRING
3738 HRRZ 0,(AB) ; CHECK FOR EMPTY STRING
3742 CAML 0,[-2] ; WAS A CHANNEL GIVEN
3745 SKIPN (P) ; SKIP IF PRINT
3747 CAIN 0,TTP ; SEE IF FLATSIZE HACK
3749 TESTIN: CAIE 0,TCHAN
3750 JRST WTYP2 ; SECOND ARG NOT CHANNEL
3753 MOVNI E,1 ; CHECKING FOR GOOD DIRECTION
3754 TRNE B,C.READ ; SKIP IF NOT READ
3756 TRNE B,C.PRIN ; SKIP IF NOT PRINT
3759 JRST WRONGD ; MAKE SURE CHANNEL IS OPEN IN RIGHT MODE
3760 STRIO9: PUSH TP,2(AB)
3761 PUSH TP,3(AB) ; PUSH ON CHANNEL
3763 STRIO2: MOVE B,IMQUOTE INCHAN
3766 MOVE B,IMQUOTE OUTCHAN
3769 SKIPN (P) ; SKIP IF PRINTSTRING
3771 CAIN 0,TTP ; SKIP IF NOT FLATSIZE HACK
3773 TESTI2: CAIE 0,TCHAN
3774 JRST BADCHN ; MAKE SURE WE GOT A GOOD DEFAULT CHANNEL
3777 STRIO3: MOVE B,(TP) ; GET CHANNEL
3779 PUSHJ P,OPENIT ; IF NOT GO OPEN
3781 CAMN E,[JRST CHNCLS]
3782 JRST CHNCLS ; CHECK TO SEE THAT CHANNEL ISNT ALREADY CLOSED
3785 JRST STRIO5 ; NO COUNT TO WORRY ABOUT
3790 CAIN 0,TFIX ; BETTER BE A FIXED NUMBER
3793 HRRZ D,(AB) ; GET ACTUAL STRING LENGTH
3796 SKIPE (P) ; TEST FOR WRITING
3797 JRST .-7 ; IF WRITING WE GOT TROUBLE
3798 PUSH P,D ; ACTUAL STRING LENGTH
3799 MOVEM E,(TB) ; STUFF HIS FUNNY DELIM STRING
3802 CAML D,C ; MAKE SURE THE STRING IS LONG ENOUGH
3804 ERRUUO EQUOTE COUNT-GREATER-THAN-STRING-SIZE
3805 PUSH P,C ; PUSH ON MAX COUNT
3808 STRIO6: HRRZ C,(AB) ; GET CHAR COUNT
3809 PUSH P,C ; AND PUSH IT ON STACK AS NO MAX COUNT GIVEN
3813 MOVE B,(TP) ; GET THE CHANNEL
3815 MOVEM 0,EOFCND-1(B) ; STUFF IN SLOT IN CHAN
3818 PUSH TP,(AB) ; PUSH ON STRING
3820 PUSH P,[0] ; PUSH ON CURRENT COUNT OF CHARS DONE
3821 MOVE 0,-2(P) ; GET READ OR WRITE FLAG
3822 JUMPN 0,OUTLOP ; GO WRITE STUFF
3824 MOVE B,-2(TP) ; GET CHANNEL
3825 PUSHJ P,GRB ; MAKE SURE WE HAVE BUFF
3826 SKIPGE A,LSTCH(B) ; CHECK FOR EOF ALREADY READ PREVIOUSLY
3827 JRST SRDOEF ; GO DOES HIS EOF HACKING
3829 MOVE B,-2(TP) ; GET CHANNEL
3830 MOVE C,-1(P) ; MAX COUNT
3831 CAMG C,(P) ; COMPARE WITH COUNT DONE
3832 JRST STREOF ; WE HAVE FINISHED
3833 PUSHJ P,R1CHAR ; GET A CHAR
3834 JUMPL A,INEOF ; EOF HIT
3836 HRRZ E,(TB) ; DO WE HAVE A STRING TO WORRY US?
3837 SOJL E,INLNT ; GO FINISH STUFFING
3842 INLNT: IDPB A,(TP) ; STUFF IN STRING
3843 SOS -1(TP) ; DECREMENT STRING COUNT
3844 AOS (P) ; INCREMENT CHAR COUNT
3847 INEOF: SKIPE C,LSTCH(B) ; IS THIS AN ! AND IS THERE A CHAR THERE
3849 MOVEM A,LSTCH(B) ; NO SAVE THE CHAR
3855 HRRZ C,DIRECT-1(B) ; GET THE TYPE OF CHAN
3856 CAIN C,5 ; IS IT READB?
3858 SOS ACCESS(B) ; FIX UP ACCESS FOR READ CHANNEL
3859 JRST STREOF ; AND THATS IT
3860 HRRZ C,ACCESS-1(B) ; FOR A READB ITS WORSE
3863 HRRM D,ACCESS-1(B) ; CHANGE A 0 TO A FIVE
3866 SOS ACCESS(B) ; AND SOS THE WORD COUNT MAYBE
3869 SRDOEF: SETZM LSTCH(B) ; IN CASE OF -1, FLUSH IT
3870 AOJE A,INLOP ; SKIP OVER -1 ON PTY'S
3872 SUB P,[3,,3] ; POP JUNK OFF STACKS
3874 PUSH TP,EOFCND(B) ; WHAT WE NEED TO EVAL
3877 MCALL 1,FCLOSE ; CLOSE THE LOOSING CHANNEL
3878 MCALL 1,EVAL ; EVAL HIS EOF JUNK
3881 OUTLOP: MOVE B,-2(TP)
3883 MOVE A,-3(TP) ; GET CHANNEL
3885 MOVE C,-1(P) ; MAX COUNT TO DO
3886 CAMG C,(P) ; HAVE WE DONE ENOUGH
3888 ILDB D,(TP) ; GET THE CHAR
3889 SOS -1(TP) ; SUBTRACT FROM STRING LENGTH
3890 AOS (P) ; INC COUNT OF CHARS DONE
3891 PUSHJ P,CPCH1 ; GO STUFF CHAR
3894 STREOF: MOVE A,$TFIX
3895 POP P,B ; RETURN THE LOOSER A COUNT OF WHAT WAS DONE
3901 GWB: SKIPE BUFSTR(B)
3904 PUSH TP,B ; GET US A WRITE BUFFER ON PRINTB CHAN
3907 MOVSI A,TWORD+.VECT.
3919 MOVE C,[TCHSTR,,BUFLNT*5]
3925 GRB: SKIPE BUFSTR(B)
3928 PUSH TP,B ; GET US A READ BUFFER
3942 MTSTRN: ERRUUO EQUOTE EMPTY-STRING
3944 \f; INPUT UNBUFFERING ROUTINE. THIS DOES THE CHARACTER UNBUFFERING
3945 ; FOR INPUT. THE OPEN ROUTINE SETUPS A PUSHJ P, TO
3946 ; THIS ROUTINE AS THE IOINS FOR A CHANNEL OPEN TO A NON-TTY DEVICE.
3952 ; B/ AOBJN PNTR TO CHANNEL VECTOR
3953 ; RETURNS NEXT CHARACTER IN AC A.
3954 ; ON ENCOUNTERING EITHER ^C OR NUL(^@) IT ASSUMES EOF AND
3955 ; TRANSMITS ONLY ^C ON SUCCESSIVE CALLS
3959 ; FIRST GRAB THE BUFFER
3960 ; GETYP A,BUFSTR-1(B) ; GET TYPE WORD
3961 ; CAIN A,TCHSTR ; SKIPS IF NOT CHSTR (I.E. IF BAD BUFFER)
3962 ; JRST GTGBUF ; IS GOOD BUFFER...SKIP ERROR RETURN
3963 GTGBUF: HRRZ A,BUFSTR-1(B) ; GET LENGTH OF STRING
3964 SOJGE A,GTGCHR ; JUMP IF STILL MORE
3966 ; HERE IF THE BUFFER WAS EXHAUSTED (BYTE PNTR POINTS INTO DOPE WDS)
3967 ; GENERATE AN .IOT POINTER
3968 ;FIRST SAVE C AND D AS I WILL CLOBBER THEM
3972 LDB C,[600,,STATUS(B)] ; GET TYPE
3973 CAIG C,2 ; SKIP IF NOT TTY
3978 JRST GETTTY ; GET A TTY BUFFER
3980 PUSHJ P,PGBUFI ; RE-FILL BUFFER
3983 JUMPGE A,BUFGOO ;SKIPS IF IOT COMPLETED...FIX UP CHANNEL
3984 MOVEI C,1 ; MAKE SURE LAST EOF REALLY ENDS IT
3986 MOVSI C,014000 ; GET A ^C
3987 MOVEM C,(A) ;FAKE AN EOF
3990 HLRE C,A ; HOW MUCH LEFT
3991 ADDI C,BUFLNT ; # OF WORDS TO C
3992 IMULI C,5 ; TO CHARS
3993 MOVE A,-2(B) ; GET BITS
3994 TRNE A,C.BIN ; CAN'T HELP A BINARY CHANNEL
4003 MOVE B,[2,,11] ; READ WORD CONTAINING BYTE SIZE
4005 LDB D,[300600,,-1(P)] ; GET BYTE SIZE
4009 CAIE D,7 ; SEVEN BIT BYTES?
4010 JRST BUFGO1 ; NO, DONT HACK
4012 IDIVI B,5 ; C IS NUMBER IN LAST WORD IF NOT EVEN
4015 ADDI C,-5(D) ; FIXUP C FOR WINNAGE
4019 ; RESET THE BYTE POINTER IN THE CHANNEL.
4020 ; BUILD ONE USING THE PTR TO BEG OF BUFFER SAVED IN D
4021 BUFGOO: HRLI D,010700 ; GENERATE VIRGIN LH
4024 MOVEM D,BUFSTR(B) ; STASH IN THE BUFFER BYTE PNTR SLOT
4025 IFE ITS, HRRM C,LSTCH-1(B) ; SAVE IT
4027 BUFROK: POP P,D ;RESTORE D
4031 ; HERE IF THERE ARE CHARS IN BUFFER
4032 GTGCHR: HRRM A,BUFSTR-1(B)
4033 ILDB A,BUFSTR(B) ; GET A CHAR FROM BUFFER
4037 POPJ P, ; AND RETURN
4038 LDB A,[600,,STATUS(B)] ; CHECK FOR TTY
4039 CAILE A,2 ; SKIP IF TTY
4057 HRRZ A,BUFSTR(B) ; SEE IF RSUBR START BIT IS ON
4068 PGBUFO: SKIPA D,[SOUT]
4069 PGBUFI: MOVE D,[SIN]
4071 SKIPGE A,BUFSTR(B) ; POINT TO CURRENT BUFFER POSIT
4072 SUBI A,1 ; FOR 440700 AND 010700 START
4073 SUBI A,BUFLNT-1 ; CALCULATE PNTR TO BEG OF BUFFER
4074 HRLI A,-BUFLNT ; IOT (AOBJN) PNTR IN A
4078 PGBIOI: MOVE D,A ; COPY FOR LATER
4079 MOVSI C,TUVEC ; PREPARE TO HANDDLE INTS
4087 MOVE C,CHANNO(B) ; CHANNEL NUMBER IN C
4088 ROT C,23. ; MOVE INTO AC FIELD
4089 IOR C,[.IOT 0,A] ; IOR IN SKELETON .IOT
4093 XCT C ; EXECUTE THE .IOT INSTR
4108 HRRI C,-1(A) ; POINT TO BUFFER
4109 HLRE D,A ; XTRA POINTER
4114 MOVE D,[PUSHJ P,FIXACS]
4119 MOVE A,CHANNO(B) ; FILE JFN
4121 HLRE C,D ; - COUNT TO C
4123 MOVN C,(P) ; REAL DESIRED COUNT
4126 XCT (P) ; DO IT TO IT
4136 JUMPGE C,CPOPJ ; NO EOF YET
4137 HRLI A,(C) ; LOOK LIKE AN AOBJN PNTR
4148 PGBIOO: SKIPA D,[SOUT]
4149 PGBIOI: MOVE D,[SIN]
4152 DOIOTO: PUSH P,[SOUT]
4166 DOIOTI: PUSH P,[SIN]
4170 ; OUTPUT BUFFERING ROUTINES SIMILAR TO INPUT BUFFERING ROUTINES OF PREV PAGE
4173 GETYP A,BUFSTR-1(B) ; CHECK TYPE OF ARG
4174 CAIE A,TCHSTR ; MUST BE STRING
4177 HRRZ A,BUFSTR-1(B) ; GET CHAR COUNT
4178 JUMPE A,REBUFF ; PREV RESET BUFF, UNDO SAME
4180 PUTCH1: POP P,A ; RESTORE CHAR
4181 CAMN A,[-1] ; SPECIAL HACK?
4182 JRST PUTCH2 ; YES GO HANDLE
4183 IDPB A,BUFSTR(B) ; STUFF IT
4184 PUTCH3: SOS A,BUFSTR-1(B) ; COUNT DOWN STRING
4185 TRNE A,-1 ; SKIP IF FULL
4188 ; HERE TO FLUSH OUT A BUFFER
4192 PUSHJ P,PGBUFO ; SETUP AND DO IOT
4193 HRLI D,010700 ; POINT INTO BUFFER
4195 MOVEM D,BUFSTR(B) ; STORE IT
4196 MOVEI A,BUFLNT*5 ; RESET COUNT
4202 ;HERE TO DA ^C AND TURN ON MAGIC BIT
4205 IDPB A,BUFSTR(B) ; ZAP OUT THE ^C
4214 IORM A,@BUFSTR(B) ; ON GOES THE BIT
4220 REBUFF: MOVEI A,BUFLNT*5 ; 1ST COUNT
4222 HRRZ A,BUFSTR(B) ; NOW POINTER
4225 MOVEM A,BUFSTR(B) ; STORE BACK
4229 ; HERE TO FLUSH FINAL BUFFER
4231 BFCLOS: HRRZ C,-2(B) ; THIS BUFFER FLUSHER THE WORK OF NDR
4237 PUSH P,A ; SAVE THE RESULT OF OUR TEST
4238 JUMPN A,BFCLNN ; DONT HAVE TO CHECK NET STATE
4240 PUSH TP,B ; SAVE CHANNEL
4241 PUSHJ P,INSTAT ; GET CURRENT NETWORK STATE
4242 MOVE A,(B) ; GET FIRST ELEMENT OF STATE UVECTOR WHICH IS CUR STATE
4243 POP TP,B ; RESTORE B
4245 CAIE A,5 ; IS NET IN OPEN STATE?
4246 CAIN A,6 ; OR ELSE IS IT IN RFNM WAIT STATE
4247 JRST BFCLNN ; IF SO TO THE IOT
4248 POP P, ; ELSE FLUSH CRUFT AND DONT IOT
4249 POPJ P, ; RETURN DOING NO IOT
4250 BFCLNN: MOVEI C,BUFLNT*5 ; NEW BUFFER FLUSHER BY NDR
4251 HRRZ D,BUFSTR-1(B) ; SO THAT NET ALSO WORKS RIGHT
4252 SUBI C,(D) ; GET NUMBER OF CHARS
4253 IDIVI C,5 ; NUMBER OF FULL WORDS AND REST
4254 PUSH P,D ; SAVE NUMBER OF ODD CHARS
4255 SKIPGE A,BUFSTR(B) ; GET CURRENT BUF POSITION
4256 SUBI A,1 ; FIX FOR 440700 BYTE POINTER
4262 PUSH P,(A) ; SAVE THE ODD WORD OF BUFFER
4268 ADDI D,1(A) ; FIX UP FOR POSSIBLE ODD CHARS
4270 PUSH TP,D ; PUSH THE DOPE VECTOR ONTO THE STACK
4271 JUMPE C,BFCLSR ; IN CASE THERE ARE NO FULL WORDS TO DO
4274 MOVE E,[SETZ BUFLNT(A)]
4275 SUBI E,(C) ; FIX UP FOR BACKWARDS BLT
4276 POP A,@E ; AMAZING GRACE
4279 HRRO A,D ; SET UP AOBJN POINTER
4282 PUSHJ P,PGBIOO ; DO THE IOT OF ALL THE FULL WORDS
4283 BFCLSR: HRRO A,(TP) ; GET IOT PTR FOR REST OF JUNK
4284 SUBI A,1 ; POINT TO WORD BEFORE DOPE WORDS
4285 POP P,0 ; GET BACK ODD WORD
4286 POP P,C ; GET BACK ODD CHAR COUNT
4287 POP P,D ; FLAG FOR NET OR DSK
4288 JUMPN D,BFCDSK ; GO FINISH OFF DSK
4289 JUMPE C,BFCLSD ; IF NO ODD CHARS FINISH UP
4291 IMULI D,(C) ; FIND NO OF BITS TO SHIFT
4292 LSH 0,-43(D) ; SHIFT BITS TO RIGHT PLACE
4293 MOVEM 0,(A) ; STORE IN STRING
4294 SUBI C,5 ; HOW MANY CHAR POSITIONS TO SKIP
4295 MOVNI C,(C) ; MAKE C POSITIVE
4297 TLC A,(C) ; MUNG THE AOBJN POINTER TO KLUDGE
4298 PUSHJ P,PGBIOO ; DO IOT OF ODD CHARS
4300 BFCLSD: HRRZ A,(TP) ; GET PTR TO DOPE WORD
4304 MOVEM 0,1(A) ; LAST WORD BACK IN BFR
4305 HRLI A,010700 ; AOBJN POINTER TO FIRST OF BUFFER
4316 BFCLSY: MOVE A,CHANNO(B)
4321 HRRZ F,LSTCH-1(C) ; PREVIOUS HIGH
4322 MOVE G,C ; SAVE CHANNEL
4345 DOTCAL RFPNTR,[A,[2000,,B]]
4346 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
4349 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
4352 BFCLSZ: SUB TP,[2,,2]
4360 PUSH P,0 ; WORD OF CHARS
4362 MOVEI B,7 ; MAKE BYTE SIZE 7
4375 DOTCAL SIOT,[CHANNO(B),D,C]
4376 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
4380 BFCDS1: MOVNI C,1 ; INDICATE NOT TOHACK BUFFER
4383 BFCLS1: HRRZ C,DIRECT-1(B)
4386 MOVE 0,[AOS ACCESS(B)]
4391 MOVEI A,40 ; PAD WITH SPACES
4393 XCT (P) ; AOS ACCESS IF NECESSARY
4394 SOJG D,.-3 ; TO END OF WORD
\r
4403 ; HERE TO GET A TTY BUFFER
4405 GETTTY: SKIPN C,EXBUFR(B) ; SKIP IF BUFFERS BACKED UP
4407 HRRZ D,(C) ; CDR THE LIST
4408 GETYP A,(C) ; CHECK TYPE
4409 CAIE A,TDEFER ; MUST BE DEFERRED
4411 MOVE C,1(C) ; GET DEFERRED GOODIE
4412 GETYP A,(C) ; BETTER BE CHSTR
4415 MOVE A,(C) ; GET FULL TYPE WORD
4417 MOVEM D,EXBUFR(B) ; STORE CDR'D LIST
4418 MOVEM A,BUFSTR-1(B) ; MAKE CURRENT BUFFER
4423 TTYWAI: PUSHJ P,TTYBLK ; BLOCKED FOR TTY I/O
4424 JRST GETTTY ; SHOULD ONLY RETURN HAPPILY
4426 \f;INTERNAL DEVICE READ ROUTINE.
4428 ;FOR INTERNAL DEVICES THIS ROUTINE APPLIES THE GIVEN OBJECT,
4429 ;CHECKS THAT THE RETURNED VALUE IS OF TYPE CHARACTER,
4430 ;AND RETURNS THAT AS THE NEXT CHARACTER IN THE "FILE"
4434 GTINTC: PUSH TP,$TCHAN ;SAVE THE CHANNEL...WE'LL CLOBBER B
4436 PUSH P,C ;AND SAVE THE OTHER ACS
4447 INTRET: POP P,0 ;RESTORE THE ACS
4451 POP TP,B ;RESTORE THE CHANNEL
4452 SUB TP,[1,,1] ;FLUSH $TCHAN...WE DON'T NEED IT
4456 BADRET: ERRUUO EQUOTE INT-DEVICE-WRONG-TYPE-EVALUATION-RESULT
4458 ;INTERNAL DEVICE PRINT ROUTINE.
4460 ;FOR INTERNAL DEVICES THIS ROUTINE APPLIES THE GIVEN OBJECT,(FUNCTION, SUBR, OR RSUBR)
4461 ;TO THE CURRENT CHARACTER BEING "PRINTED".
4463 PTINTC: PUSH TP,$TCHAN ;SAVE THE CHANNEL...WE'LL CLOBBER B
4465 PUSH P,C ;AND SAVE THE OTHER ACS
4469 PUSH TP,INTFCN-1(B) ;PUSH TYPE OF GIVEN OBJ
4470 PUSH TP,INTFCN(B) ;PUSH THE SUPPLIED FUNCTION (OR SUBR ETC.)
4471 PUSH TP,$TCHRS ;PUSH THE TYPE "CHARACTER"
4472 PUSH TP,A ;PUSH THE CHAR
4473 MCALL 2,APPLY ;APPLY THE FUNCTION TO THE CHAR
4478 ; ROUTINE TO FLUSH OUT A PRINT BUFFER
4480 MFUNCTION BUFOUT,SUBR
4489 ; MOVEI B,DIRECT-1(B)
4490 ; PUSHJ P,CHRWRD ; GET DIR NAME
4492 ; CAMN B,[ASCII /PRINT/]
4494 ; CAME B,[<ASCII /PRINT/>+1]
4496 ; TRNE B,1 ; SKIP IF PRINT
4498 ; TRNN B,1 ; SKIP IF PRINTB
4499 ; PUSH P,[AOS ACCESS(B)]
4503 ; TRNE 0,C.BIN ; SKIP IF PRINT
4505 ; TRNN 0,C.BIN ; SKIP IF PRINTB
4506 ; PUSH P,[AOS ACCESS(B)]
4508 ; GETYP 0,BUFSTR-1(B)
4510 ; SKIPN A,BUFSTR(B) ; BYTE POINTER?
4512 ; HRRZ C,BUFSTR-1(B) ; CHARS LEFT
4513 ; IDIVI C,5 ; MULTIPLE OF 5?
4514 ; JUMPE D,BFIN2 ; YUP NO EXTRAS
4516 ; MOVEI A,40 ; PAD WITH SPACES
4517 ; PUSHJ P,PUTCHR ; OUT IT GOES
4518 ; XCT (P) ; MAYBE BUMP ACCESS
4521 BFIN2: PUSHJ P,BFCLOS ; WRITE OUT BUFFER
4523 BFIN1: MOVSI A,TCHAN
4528 ; FUNCTION TO GET THE FILE LENGTH OF A READ CHANNEL
4530 MFUNCTION FILLNT,SUBR,[FILE-LENGTH]
4542 MOVEI B,DIRECT-1(B) ; GET CHANNEL TYPE
4545 CAME B,[ASCIZ /READ/]
4547 PUSH P,[5] ; MULTIPLICATIVE FACTOR FOR READ
4549 CAME B,[ASCII /READB/]
4551 PUSH P,[1] ; MULTIPLICATIVE FACTOR FOR READ
4553 MOVE C,-2(B) ; GET BITS
4554 MOVEI D,5 ; ASSUME ASCII
4555 TRNE C,C.BIN ; SKIP IF NOT BINARY
4561 JRST FILLOS ; GIVE HIM A NICE FALSE
4567 MOVE B,[1,,11] ; READ WORD CONTAINING BYTE SIZE
4569 LDB D,[300600,,(P)] ; GET BYTE SIZE
4571 MOVEI D,36. ; HANDLE "0" BYTE SIZE
4583 YESASC: MOVE A,$TFIX
4588 IDIV 0,D ; BYTES PER WORD
4596 FILL1: SETZ ; BLOCK FOR .CALL TO FILLEN
4601 FILLOS: MOVE A,CHANNO(C)
4602 MOVE B,[.STATUS A] ;MAKE A CALL TO STATUS TO FIND REASON
4603 LSH A,23. ;SHIFT THE CHANNEL NUMBER INTO RIGHT PLACE
4604 IOR B,A ;FIX UP .STATUS
4619 \f; MCHAN LOW-LEVEL I/O GARBAGE (PDL)-ORIGINAL (LIM)-ADDITIONS
4621 ;CALLING ROUTINE: AC-A contains pointer to block of SIXBIT data
4622 ; DIR ? DEV ? FNM1 ? FNM2 ? SNM
4623 ;RETURNED VALUE : AC-A = <channel #, or -1 if no channel available>
4627 MOVE C,FRSTCH ; skip gc and tty channels
4628 CNLP: DOTCAL STATUS,[C,[2000,,B]]
4631 JUMPE B,CHNFND ; found unused channel ?
4632 ADDI C,1 ; try another channel
4633 CAIG C,17 ; are all the channels used ?
4635 SETO C, ; all channels used so C = -1
4638 HLL B,(A) ; M.DIR slot
4639 DOTCAL OPEN,[B,1(A),2(A),3(A),4(A)]
4641 AOS -2(P) ; successful skip when returning
4647 MIOT: DOTCAL IOT,[A,B]
4651 MCLOSE: DOTCAL CLOSE,[A]
4661 \f;THREE GENERALLY USEFUL ERROR ROUTINES FOR I/O
4664 BADCHN: ERRUUO EQUOTE BAD-CHANNEL
4665 BDCHAN: ERRUUO EQUOTE BAD-INPUT-BUFFER
4667 WRONGD: ERRUUO EQUOTE WRONG-DIRECTION-CHANNEL
4669 CHNCLS: ERRUUO EQUOTE CHANNEL-CLOSED
4671 BAD6: ERRUUO EQUOTE NON-6-BIT-CHARACTER-IN-FILE-NAME
4673 DISLOS: MOVE C,$TCHSTR
4674 MOVE D,CHQUOTE [DISPLAY NOT AVAILABLE]
4679 NOCHAN: ERRUUO EQUOTE ITS-CHANNELS-EXHAUSTED
4681 MODE1: 232020,,202020
4682 MODE2: 232023,,330320