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
373 ; HERE TO VALIDIFY ARGUMENTS FOR A NET OPEN
377 CAME D,[SIXBIT /NET /] ; IS IT NET
380 CAIE D,(SIXBIT /NET/) ; IS IT NET
382 MOVSI D,TFIX ; FOR TYPES
383 MOVEI B,T.NM1(TB) ; MAKE SURE ALL ARE FIXED
388 LSH A,-1 ; SKIP DEV FLAG
392 MAKCH1: TRNN A,MSTNET ; CANT HAVE SEEN A FIX
397 CHFIX: TRNE A,N1SET ; SKIP IF NOT SPECIFIED
399 SETOM 1(B) ; SET TO -1
401 MOVEM D,(B) ; CORRECT TYPE
407 CHFIX1: ADDI C,1 ; POINT TO NEXT FIELD
408 LSH A,-1 ; AND NEXT FLAG
434 ; SUBROUTINE TO CHECK VALIDITY OF MODE AND SAVE A CODE
436 CHMODE: PUSHJ P,CHMOD ; DO IT
441 CHMOD: PUSHJ P,STRTO6 ; TO SIXBIT
442 POP P,B ; VALUE ENDSUP ON STACK, RESTORE IT
444 MOVSI A,-NMODES ; SCAN TO SEE IF LEGAL MODE
447 JUMPGE A,WRONGD ; ILLEGAL MODE NAME
453 ; RGPARS -- PARSE THE STRINGS COMPRISING FILE NAMES INTO STANDARD ITS GOODIES
455 RGPRS: MOVEI 0,NOSTOR ; DONT STORE STRINGS IF ENTER HERE
457 RGPARS: CAMGE AB,[-7,,] ; MULTI-STRING CASE POSSIBLE?
458 IORI 0,4ARG ; 4 STRING CASE
459 HRLM 0,(P) ; LH IS FLAGS FOR THIS PROG
460 MOVSI E,-4 ; FIELDS TO FILL
462 RPARGL: GETYP 0,(AB) ; GET TYPE
463 CAIE 0,TCHSTR ; STRING?
464 JRST ARGCLB ; NO, JUST CLOBBER IT IN RAW
465 JUMPGE E,CPOPJ ; DON'T DO ANY MORE
466 PUSH TP,(AB) ; GET AN ARG
469 FPARS: PUSH TP,-1(TP) ; ANOTHER COPY
473 PUSHJ P,FLSSP ; NO LEADING SPACES
474 MOVEI A,0 ; WILL HOLD SIXBIT
475 MOVEI B,6 ; CHARS PER 6BIT WORD
476 MOVE C,[440600,,A] ; BYTE POINTER INTO A
478 FPARSL: HRRZ 0,-1(TP) ; GET COUNT
481 ILDB 0,(TP) ; CHAR TO 0
483 CAIE 0,"
\11 ; FILE NAME QUOTE?
488 ILDB 0,(TP) ; USE THIS
496 JRST NDFLD ; YES, TERMINATE THIS FIELD
497 CAIN 0,": ; DEVICE ENDED?
499 CAIN 0,"; ; SNAME ENDED
503 PUSHJ P,A0TO6 ; CONVERT TO 6BIT AND CHECK
505 JUMPE B,FPARSL ; IGNORE IF AREADY HAVE 6
509 ; HERE IF SPACE ENCOUNTERED
511 NDFLD: MOVEI D,(E) ; COPY GOODIE
512 PUSHJ P,FLSSP ; FLUSH REDUNDANT SPACES
513 JUMPE 0,PARSD ; NO CHARS LEFT
515 NFL0: PUSH P,A ; SAVE SIXBIT WORD
516 SKIPGE -1(P) ; SKIP IF STRING TO BE STORED
518 PUSH TP,$TAB ; PREVENT AB LOSSAGE
520 PUSHJ P,6TOCHS ; CONVERT TO STRING
523 NFL1: HRRZ 0,-1(TP) ; RESTORE CHAR COUNT
525 NFL2: MOVEI C,(D) ; COPY REL PNTR
526 SKIPGE -1(P) ; SKIP IF STRINGS TO BE STORED
532 NFL3: MOVSI A,N1SET ; FLAG IT
534 IORM A,-1(P) ; AND CLOBBER
535 MOVE D,T.SPDL+1(TB) ; GET P BASE
536 POP P,@SIXTBL(C) ; AND STORE SIXBIT OF IT
538 POP TP,-2(TP) ; MAKE NEW STRING POINTER
540 JUMPE 0,.+3 ; SKIP IF NO MORE CHARS
541 AOBJN E,FPARS ; MORE TO PARSE?
542 CPOPJ: POPJ P, ; RETURN, ALL DONE
544 SUB TP,[2,,2] ; FLUSH OLD STRING
546 ADD AB,[2,,2] ; BUMP ARG
547 JUMPL AB,RPARGL ; AND GO ON
548 CPOPJ1: AOS A,(P) ; PREPARE TO WIN
554 ; HERE IF STRING HAS ENDED
556 PARSD: PUSH P,A ; SAVE 6 BIT
557 MOVE A,-3(TP) ; CAN USE ARG STRING
560 JRST NFL2 ; AND CONTINUE
562 ; HERE IF JUST READ DEV
564 GOTDEV: MOVEI D,2 ; CODE FOR DEVICE
565 JRST GOTFLD ; GOT A FIELD
567 ; HERE IF JUST READ SNAME
570 GOTFLD: PUSHJ P,FLSSP
574 ; HERE FOR NON STRING ARG ENCOUNTERED
576 ARGCLB: SKIPGE (P) ; IF NOT STORING, CONSIDER THIS THE END
579 MOVE C,T.SPDL+1(TB) ; GET P-BASE
580 MOVE A,S.DEV(C) ; GET DEVICE
581 CAME A,[SIXBIT /INT /]; IS IT THE INTERNAL DEVICE
582 JRST TRYNET ; NO, COUD BE NET
583 MOVE A,0 ; OFFNEDING TYPE TO A
584 PUSHJ P,APLQ ; IS IT APPLICABLE
587 ADD AB,[2,,2] ; MUST BE LAST ARG
589 JRST CPOPJ1 ; ELSE SUCCESSFUL RETURN
590 TRYNET: CAIE 0,TFIX ; FOR NET DEV, ARGS MUST BE FIX
591 JRST WRONGT ; TREAT AS WRONG TYPE
592 MOVSI A,MSTNET ; BETTER BE NET EVENTUALLY
593 IORM A,(P) ; STORE FLAGS
595 MOVE B,1(AB) ; GET NUMBER
596 MOVEI 0,(E) ; MAKE SURE NOT DEVICE
599 PUSH P,B ; SAVE NUMBER
600 MOVEI D,(E) ; SET FOR TABLE OFFSETS
603 JRST NFL2 ; GO CLOBBER IT AWAY
607 ; ROUTINE TO FLUSH LEADING SPACES FROM A FIELD
609 FLSSP: HRRZ 0,-1(TP) ; GET CHR COUNNT
610 JUMPE 0,CPOPJ ; FINISHED STRING
611 FLSS1: MOVE B,(TP) ; GET BYTR
613 CAIE C,^Q ; DONT FLUSH CNTL-Q
616 MOVEM B,(TP) ; UPDATE BYTE POINTER
619 FLSS2: HRRM 0,-1(TP) ; UPDATE STRING
623 ;TABLE FOR STFUFFING SIXBITS AWAY
625 SIXTBL: SETZ S.NM1(D)
632 RDTBL: SETZ RDEVIC(B)
641 ; TENEX VERSION OF FILE NAME PARSER (ONLY ACCEPT ARGS IN SINGLE STRING)
643 RGPRS: MOVSI 0,NOSTOR
645 RGPARS: IORM 0,(P) ; SAVE FOR STORE CHECKING
646 CAMGE AB,[-2,,] ; MULTI-STRING CASE POSSIBLE?
647 JRST TN.MLT ; YES, GO PROCESS
648 RGPRSS: GETYP 0,(AB) ; CHECK ARG TYPE
650 JRST WRONGT ; FOR NOW ONLY STRING ARGS WIN
653 PUSHJ P,FLSSP ; FLUSH LEADING SPACES
656 CHKLST: JUMPGE AB,CPOPJ1
657 SKIPGE (P) ; IF FROM OPEN, ALLOW ONE MORE
665 RGPRS1: PUSH P,[0] ; ALLOW A DEVICE SPEC
670 CAIE A,"< ; START "DIRECTORY" ?
671 JRST TN.N1 ; NO LOOK FOR NAME1
672 SETOM (P) ; DEV NOT ALLOWED
675 PUSHJ P,TN.CNT ; COUNT CHARS TO ">" OR "."
676 JUMPE B,ILLNAM ; RAN OUT
681 TN.SN1: PUSHJ P,TN.CNT ; COUNT CHARS TO ">"
682 JUMPE B,ILLNAM ; RAN OUT
688 TN.SN2: HRRZ B,-3(TP)
692 TN.SN3: CAIE A,"> ; SKIP IF WINS
694 PUSHJ P,TN.CPS ; COPY TO NEW STRING
698 TN.N1: PUSHJ P,TN.CNT
700 CAIE A,": ; GOT A DEVICE
708 JRST TN.SNM ; NOW LOOK FOR SNAME
713 MOVEM A,(P) ; SAVE END CHAR
714 PUSHJ P,TN.CPS ; GEN STRING
718 TN.N2: SKIPN A,(P) ; GET CHAR BACK
720 CAIN A,"; ; START VERSION?
722 CAIE A,". ; START NAME2?
723 JRST ILLNAM ; I GIVE UP!!!
724 HRRZ B,-1(TP) ; GET RMAINS OF STRING
725 PUSHJ P,TN.CPS ; AND COPY IT
728 RPDONE: SUB P,[1,,1] ; FLUSH TEMP
732 TN.CNT: HRRZ 0,-1(TP) ; CHAR COUNT
734 MOVEI B,0 ; INIT COUNT TO 0
736 TN.CN1: MOVEI A,0 ; IN CASE RUN OUT
737 SOJL 0,CPOPJ ; RUN OUT?
739 CAIE A,"
\16 ; TNEX FILE QUOTE?
742 IBP C ; SKIP QUOTED CHAT
757 TN.CPS: PUSH P,B ; # OF CHARS
758 MOVEI A,4(B) ; ADD 4 TO B IN A
760 PUSHJ P,IBLOCK ; GET BLOCK OF WORDS FOR STRING
762 POP P,C ; CHAR COUNT BACK
766 HRRI A,(C) ; CHAR STRING
767 MOVE D,B ; COPY BYTER
770 ILDB 0,(TP) ; GET CHAR
774 MOVNI C,(A) ; - LENGTH TO C
775 ADDB C,-1(TP) ; DECREMENT WORDS COUNT
776 TRNN C,-1 ; SKIP IF EMPTY
779 SOS -1(TP) ; ELSE FLUSH TERMINATOR
782 ILLNAM: ERRUUO EQUOTE ILLEGAL-TENEX-FILE-NAME
784 TN.MLT: MOVE A,AB ; AOBJN POINTER TO ARGS IN A
786 TN.ML1: GETYP 0,(A) ; IS THIS ARG OF RIGHT TYPE
790 JRST RGPRSS ; ASSUME SINGLE STRING
792 JUMPL A,TN.ML1 ; TRY NEXT ARG IF ANY LEFT
794 MOVEI 0,T.NM1(TB) ; 1ST WORD OF DESTINATION
795 HLRO A,AB ; MINUS NUMBER OF ARGS IN A
796 MOVN A,A ; NUMBER OF ARGS IN A
799 MOVEI A,7 ; IF MORE THAN 10 ARGS, PUT 7
800 ADD A,0 ; LAST WORD OF DESTINATION
802 BLT 0,(A) ; BLT 'EM IN
803 ADD AB,[10,,10] ; SKIP THESE GUYS
809 ; ROUTINE TO OPEN A CHANNEL FOR ANY DEVICE. NAMES ARE ASSUMED TO ALREADY
810 ; BE ON BOTH TP STACK AND P STACK
812 OPNCH: MOVE C,T.SPDL+1(TB) ; GET PDL BASE
814 ANDI A,1 ; JUST WANT I AND O
817 ; .TRANS S.DEV(C) ; UNDO ANY TRANSLATIONS
818 ; JRST TRLOST ; COMPLAIN
825 MOVE A,S.DEV(C) ; GET SIXBIT DEVICE CODE
828 IFE ITS,[HRLZS A,S.DEV(C)
831 MOVSI B,-NDEVS ; AOBJN COUNTER
833 MOVE 0,DEVSTB(B) ; GET ONE FROM TABLE
835 DEVLP1: AND E,D ; FLUSH POSSIBLE DIGITNESS
837 JRST CHDIGS ; MAKE SURE REST IS DIGITS
839 JUMPN D,DEVLP1 ; KEEP TRUCKING UNTIL DONE
841 ; WASN'T THAT DEVICE, MOVE TO NEXT
842 NXTDEV: AOBJN B,DEVLP
843 JRST ODSK ; UNKNOWN DEVICE IS ASSUMED TO BE DISK
846 OUSR: HRRZ A,S.DIR(C) ; BLOCK OR UNIT?
847 TRNE A,2 ; SKIP IF UNIT
849 PUSHJ P,OPEN1 ; OPEN IT
850 PUSHJ P,FIXREA ; AND READCHST IT
851 MOVE B,T.CHAN+1(TB) ; RESTORE CHANNEL
852 MOVE 0,[PUSHJ P,DOIOT] ; GET AN IOINS
862 OSTY: HLRZ A,S.DIR(C)
863 IORI A,10 ; THE DONT LOSE BIT (DONT HANG ON INPUT DO ON OUTPUT)
868 ; MAKE SURE DIGITS EXIST
871 JUMPE D,DISPA ; NO DIGITS, WIN IMMEDIATE
873 AND E,D ; LEAVES ONLY DIGITS, IF WINNING
876 JUMPG D,.-2 ; KEEP GOING TIL DIGITS LEFT SHIFTED
881 JRST NXTDEV ; NOT A DIGIT, LOSE
882 JUMPE E,DISPA ; IF THAT'S ALL THE CHARACTERS, WIN!
884 ROTC D,6 ; GET NEXT CHARACTER INTO D
885 JRST CHDIG1 ; GO TEST?
887 ; HERE TO DISPATCH IF SUCCESSFUL
894 ; DISK DEVICE OPNER COME HERE
896 ODSK: MOVE A,S.SNM(C) ; GET SNAME
897 .SUSET [.SSNAM,,A] ; CLOBBER IT
898 PUSHJ P,OPEN0 ; DO REAL LIVE OPEN
902 ; TENEX DISK FILE OPENER
904 ODSK: MOVE B,T.CHAN+1(TB) ; GET CHANNEL
905 PUSHJ P,STSTK ; EXPAND STRING ONTO STACK (E POINTS TO OLD P)
908 PUSHJ P,STRTO6 ; GET DIR NAME
912 CAME C,[SIXBIT /PRINAO/]
913 CAMN C,[SIXBIT /PRINTO/]
914 IORI D,100 ; TURN ON BIT TO SAY USE OLD FILE
915 MOVSI A,101 ; START SETTING UP BITS EXTRA BIT FOR MSB
916 TRNE D,1 ; SKIP IF INPUT
917 TRNE D,100 ; WITE OVER?
918 TLOA A,100000 ; FORCE OLD VERSION
919 TLO A,600000 ; FORCE NEW VERSION
920 HRROI B,1(E) ; POINT TO STRING
922 TDZA 0,0 ; SAVE FACT OF NO SKIP
923 MOVEI 0,1 ; INDICATE SKIPPED
924 POP P,C ; RECOVER OPEN MODE SIXBIT
925 MOVE P,E ; RESTORE PSTACK
926 JUMPE 0,GTJLOS ; FIND OUT WHAT HAPPENED
928 MOVE B,T.CHAN+1(TB) ; GET CHANNEL
929 HRRZM A,CHANNO(B) ; SAVE IT
930 ANDI A,-1 ; READ Y TO DO OPEN
931 MOVSI B,440000 ; USE 36. BIT BYES
932 HRRI B,200000 ; ASSUME READ
933 CAMN C,[SIXBIT /READB/]
934 TRO B,2000 ; TURN ON THAWED IF READB
935 TRNE D,1 ; SKIP IF READ
936 HRRI B,300000 ; WRITE BIT
937 HRRZ 0,FSAV(TB) ; SEE IF REF DATE HACK
939 TRO B,400 ; SET DON'T MUNG REF DATE BIT
940 MOVE E,B ; SAVE BITS FOR REOPENS
943 MOVE B,[2,,11] ; GET LENGTH & BYTE SIZE
948 LDB 0,[300600,,-1(P)] ; GET BYTE SIZE
954 SIZEF ; USE OPENED SIZE
957 SIZASC: MOVEI 0,C.OPN+C.READ+C.DISK
958 TRNE D,1 ; SKIP FOR READ
959 MOVEI 0,C.OPN+C.PRIN+C.DISK
960 TRNE D,2 ; SKIP IF NOT BINARY FILE
965 HLRM 0,LSTCH-1(B) ; SAVE CURRENT LENGTH
967 HRRM 0,-2(B) ; MUNG THOSE BITS
968 ASH A,1 ; POINT TO SLOT
969 ADDI A,CHNL0 ; TO REAL SLOT
970 MOVEM B,1(A) ; SAVE CHANNEL
971 PUSHJ P,TMTNXS ; GET STRING FROM TENEX
972 MOVE B,CHANNO(B) ; JFN TO A
973 HRROI A,1(E) ; BASE OF STRING
974 MOVE C,[111111,,140001] ; WEIRD CONTROL BITS
976 MOVEI B,1(E) ; POINT TO START OF STRING
977 SUBM P,E ; RELATIVIZE E
978 PUSHJ P,TNXSTR ; MAKE INTO A STRING
979 SUB P,E ; BACK TO NORMAL
982 PUSHJ P,RGPRS1 ; PARSE INTO FIELDS
988 OPFLOS: MOVEI C,(A) ; SAVE ERROR CODE
990 HRRZ A,CHANNO(B) ; JFN BACK TO A
991 RLJFN ; TRY TO RELEASE IT
993 MOVEI A,(C) ; ERROR CODE BACK TO A
995 GTJLOS: MOVE B,T.CHAN+1(TB)
996 PUSHJ P,TGFALS ; GET A FALSE WITH REASON
999 STSTK: PUSH TP,$TCHAN
1001 MOVEI A,4+5 ; COUNT CHARS NEEDED (NEED LAST 0 BYTE)
1007 ANDI A,-1 ; TO 18 BITS
1009 IDIVI A,5 ; TO WORDS NEEDED
1010 POP P,C ; SAVE RET ADDR
1011 MOVE E,P ; SAVE POINTER
1012 PUSH P,[0] ; ALOCATE SLOTS
1014 PUSH P,C ; RET ADDR BACK
1015 INTGO ; IN CASE OVERFLEW
1017 MOVE B,(TP) ; IN CASE GC'D
1018 MOVE D,[440700,,1(E)] ; BYTE POINTER TO IT
1020 PUSHJ P,MOVSTR ; FLUSH IT ON
1023 MOVEI A,0 ; HERE TO SEE IF THIS IS REALLY L.N.
1026 LNMST ; LOOK UP LOGICAL NAME
1027 MOVNI A,1 ; NOT A LOGICAL NAME
1032 JUMPE A,ST.NM1 ; LOGICAL NAME, FLUSH SNAME
1033 HRRZ A,RSNAME-1(B) ; ANY SNAME AT ALL?
1034 JUMPE A,ST.NM1 ; NOPE, CANT HACK WITH IT
1038 PUSHJ P,MOVSTR ; SNAME UP
1041 ST.NM1: MOVEI A,RNAME1-1(B)
1051 MOVSTR: HRRZ 0,(A) ; CHAR COUNT
1052 MOVE A,1(A) ; BYTE POINTER
1055 IDPB C,D ; MUNG IT UP
1058 ; MAKE A TENEX ERROR MESSAGE STRING
1060 TGFALS: PUSH TP,$TCHAN
1062 PUSH P,A ; SAVE ERROR CODE
1063 PUSHJ P,TMTNXS ; STRING ON STACK
1064 HRROI A,1(E) ; POINT TO SPACE
1065 MOVE B,(E) ; ERROR CODE
1066 HRLI B,400000 ; FOR ME
1067 MOVSI C,-100. ; MAX CHARS
1068 ERSTR ; GET TENEX STRING
1072 MOVEI B,1(E) ; A AND B BOUND STRING
1073 SUBM P,E ; RELATIVIZE E
1074 PUSHJ P,TNXSTR ; BUILD STRING
1075 SUB P,E ; P BACK TO NORMAL
1077 IFE FNAMS, SUB P,[1,,1] ; FLUSH ERROR CODE SLOT
1107 PUSHJ P,IILIST ; BUILD LIST
1108 MOVSI A,TFALSE ; MAKE IT FALSE
1112 TGFLS1: MOVE P,E ; RESET STACK
1114 MOVE B,CHQUOTE UNKNOWN PROBLEM IN I/O
1118 ; OTHER BUFFERED DEVICES JOIN HERE
1122 PUSHJ P,FIXREA ; STORE THE "REAL" NAMES INTO THE CHANNEL
1124 OPBASC: MOVE C,T.SPDL+1(TB) ; C WAS CLOBBERED, GET IT BACK
1125 HRRZ A,S.DIR(C) ; FIND OUT IF OPEN IS ASCII OR WORD
1126 TRZN A,2 ; SKIP IF BINARY
1127 PUSHJ P,OPASCI ; DO IT FOR ASCII
1129 ; NOW SET UP IO INSTRUCTION FOR CHANNEL
1131 MAKION: MOVE B,T.CHAN+1(TB)
1133 JUMPE A,MAKIO1 ; JUMP IF INPUT
1134 MOVEI C,PUTCHR ; ELSE GET INPUT
1135 MOVEI 0,80. ; DEFAULT LINE LNTH
1141 MOVEM C,IOINS(B) ; STORE IT
1142 JUMPN A,OPNWIN ; GET AN EOF FORM FOR INPUT CHANNEL
1144 ; HERE TO CONS UP <ERROR END-OF-FILE>
1146 EOFMAK: MOVSI C,TATOM
1147 MOVE D,EQUOTE END-OF-FILE
1151 MOVE D,IMQUOTE ERROR
1153 MOVE D,T.CHAN+1(TB) ; RESTORE CHANNEL
1158 OPNWIN: MOVEI 0,10. ; SET UP RADIX
1159 MOVSI A,TCHAN ; OPEN SUCCEEDED, RET CHANNEL
1163 OPNRET: MOVE D,T.CHAN+1(TB) ; IN CASE WE RECYCLE IT
1164 MOVE C,(P) ; RET ADDR
1165 SUB P,[S.X3+2,,S.X3+2]
1166 SUB TP,[T.CHAN+2,,T.CHAN+2]
1170 ; HERE TO CREATE CHARACTER BUFFERS FOR ASCII I/O
1172 OPASCI: PUSH P,A ; CONTAINS MODE, SAVE IT
1173 MOVEI A,BUFLNT ; GET SIZE OF BUFFER
1174 PUSHJ P,IBLOCK ; GET STORAGE
1175 MOVSI 0,TWORD+.VECT. ; SET UTYPE
1176 MOVEM 0,BUFLNT(B) ; AND STORE
1178 SKIPE (P) ; SKIP IF INPUT
1180 MOVEI D,BUFLNT-1(B) ; REST BYTE POINTER
1181 OPASCA: HRLI D,010700
1182 MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK
1184 IORM 0,-2(B) ; TURN ON BUFFER BIT
1186 MOVEM D,BUFSTR(B) ; CLOBBER
1190 OPASCO: HRROI C,777776
1191 MOVEM C,(B) ; -1 THE BUFFER (LEAVE OFF LOW BIT)
1193 HRRI C,1(B) ; BUILD BLT POINTER
1194 BLT C,BUFLNT-1(B) ; ZAP
1195 MOVEI D,-1(B) ; START MAKING STRING POINTER
1196 HRRI A,BUFLNT*5 ; SET UP CHAR COUNT
1200 ; OPEN NON FILE ORIENTED DEVICES (NUL, PTR, PTP ETC.)
1205 OPTR: PUSHJ P,OPEN0 ; SET UP MODE AND OPEN
1206 SETZM S.NM1(C) ; CLOBBER UNINTERESTING FIELDS
1211 ; OPEN DEVICES THAT IGNORE SNAME
1219 ; INTERNAL CHANNEL OPENER
1221 OINT: HRRZ A,S.DIR(C) ; CHECK DIR
1222 CAIL A,2 ; READ/PRINT?
1223 JRST WRONGD ; NO, LOSE
1225 MOVE 0,INTINS(A) ; GET INS
1226 MOVE D,T.CHAN+1(TB) ; AND CHANNEL
1227 MOVEM 0,IOINS(D) ; AND CLOBBER
1228 MOVEI 0,C.OPN+C.READ
1230 MOVEI 0,C.OPN+C.PRIN
1232 SETOM STATUS(D) ; MAKE SURE NOT AA TTY
1233 PMOVEM T.XT(TB),INTFCN-1(D)
1235 ; HERE TO SAVE PSEUDO CHANNELS
1237 SAVCHN: HRRZ E,CHNL0+1 ; POINT TO CURRENT LIST
1239 PUSHJ P,ICONS ; CONS IT ON
1243 ; INT DEVICE I/O INS
1245 INTINS: PUSHJ P,GTINTC
1249 ; HERE TO OPEN THE NET DEVICE (I.E. THE ARPA NET)
1252 ONET: HRRZ A,S.DIR(C) ; DIRECTION CODE
1254 IORI A,4 ; TURN ON IMAGE BIT
1255 SKIPGE S.NM1(C) ; NAME1 I.E. LOCAL HOST GIVEN
1256 IORI A,10 ; NO, WE WILL LET ITS GIVE US ONE
1257 SKIPGE S.NM2(C) ; NORMAL OR "LISTEN"
1258 IORI A,20 ; TURN ON LISTEN BIT
1259 MOVEI 0,7 ; DEFAULT BYTE SIZE
1261 MOVEI 0,36. ; IMAGE WHICH IS 36
1262 SKIPN T.XT(TB) ; BYTE SIZE GIVEN?
1263 MOVEM 0,S.X1(C) ; NO, STORE DEFAULT
1264 SKIPG D,S.X1(C) ; BYTE SIZE REASONABLE?
1265 JRST RBYTSZ ; NO <0, COMPLAIN
1266 TRNE A,2 ; SKIP TO CHECK ASCII
1267 JRST ONET2 ; CHECK IMAGE
1268 CAIN D,7 ; 7-BIT WINS
1270 CAIE D,44 ; 36-BIT INDICATES BLOCK ASCII MODE
1272 IORI A,2 ; SET BLOCK FLAG
1274 IORI A,40 ; USE 8-BIT MODE
1275 CAIN D,10 ; IS IT RIGHT
1279 RBYTSZ: ERRUUO EQUOTE BYTE-SIZE-BAD
1282 ONET2: CAILE D,36. ; IMAGE SIZE REASONABLE?
1285 JRST ONET1 ; YES, DONT SET FIELD
1287 ASH D,9. ; POSITION FOR FIELD
1288 IORI A,40(D) ; SET IT AND ITS BIT
1290 ONET1: HRLM A,S.DIR(C) ; CLOBBER OPEN BLOCK
1291 MOVE E,A ; SAVE BLOCK MODE INFO
1292 PUSHJ P,OPEN1 ; DO THE OPEN
1295 ; CLOBBER REAL SLOTS FOR THE OPEN
1297 MOVEI A,3 ; GET STATE VECTOR
1303 MOVSI A,TFIX+.VECT. ; SET U TYPE
1308 PUSHJ P,INETST ; GET STATE
1310 POP P,A ; IS THIS BLOCK MODE
1311 MOVEI 0,80. ; POSSIBLE LINE LENGTH
1312 TRNE A,1 ; SKIP IF INPUT
1314 TRNN A,2 ; BLOCK MODE?
1316 TRNN A,4 ; ASCII MODE?
1317 JRST OPBASC ; GO SETUP BLOCK ASCII
1318 MOVE 0,[PUSHJ P,DOIOT]
1323 ; INTERNAL ROUTINE TO GET THE CURRENT STATE OF THE NETWROK CHANNEL
1325 INETST: MOVE A,S.NM1(C)
1329 LDB A,[1100,,S.SNM(C)]
1332 MOVE E,BUFRIN(B) ; GET STATE BLOCK
1333 INTST1: HRRE 0,S.X1(C)
1341 ; ACCEPT A CONNECTION
1343 MFUNCTION NETACC,SUBR
1345 PUSHJ P,ARGNET ; CHECK THAT ARG IS AN OPEN NET CHANNEL
1346 MOVE A,CHANNO(B) ; GET CHANNEL
1347 LSH A,23. ; TO AC FIELD
1350 JRST IFALSE ; RETURN FALSE
1355 ; FORCE SYSTEM NETWORK BUFFERS TO BE SENT
1362 SKIPA A,CHANNO(B) ; GET CHANNEL
1369 ; SUBR TO RETURN UPDATED NET STATE
1371 MFUNCTION NETSTATE,SUBR
1373 PUSHJ P,ARGNET ; IS IT A NET CHANNEL
1377 ; INTERNAL NETSTATE ROUTINE
1379 INSTAT: MOVE C,P ; GET PDL BASE
1380 MOVEI 0,S.X3 ; # OF SLOTS NEEDED
1383 ; RESTORED FROM MUDDLE 54. IT SEEMED TO WORK THERE, AND THE STUFF
1384 ; COMMENTED OUT HERE CERTAINLY DOESN'T.
1388 ; HRR D,CHANNO(B) ; SETUP FOR RFNAME CALL
1389 ; DOTCAL RFNAME,[D,[2003,,S.DEV],[2003,,S.NM1],[2003,,S.NM2],[2003,,S.SNM]]
1390 ; .LOSE %LSFIL ; THIS MAY NOT BE DESIRABLE, BUT I ASSUME WE CARE IF
1392 PUSHJ P,INETST ; INTO VECTOR
1398 ; INTERNAL ROUTINE TO CHECK FOR CORRECT CHANNEL TYPE
1404 MOVE B,1(AB) ; GET CHANNEL
1405 SKIPN CHANNO(B) ; OPEN?
1407 MOVE A,RDEVIC-1(B) ; GET DEV NAME
1411 CAME A,[SIXBIT /NET /]
1414 MOVE A,DIRECT-1(B) ; CHECK FOR A READ SOCKET
1417 MOVE B,1(AB) ; RESTORE CHANNEL
1423 ; TENEX NETWRK OPENING CODE
1425 ONET: MOVE B,T.CHAN+1(TB) ; GET CHANNEL
1429 PUSH P,[ASCII /NET:/] ; FOR STRINGS
1430 GETYP 0,RNAME1-1(B) ; CHECK TYPE
1431 CAIE 0,TFIX ; SKIP IF # SUPPLIED
1433 MOVE 0,RNAME1(B) ; GET IT
1437 ONET1: CAIE 0,TCHSTR
1464 ONET3: CAIE 0,TCHSTR
1474 ONET5: MOVE B,T.CHAN+1(TB)
1483 HRROI B,1(E) ; STRING POINTER
1484 GTJFN ; GET THE G.D JFN
1485 TDZA 0,0 ; REMEMBER FAILURE
1487 MOVE P,E ; RESTORE P
1488 JUMPE 0,GTJLOS ; CONS UP ERROR STRING
1491 HRRZM A,CHANNO(B) ; SAVE THE JFN
1506 TRNE D,1 ; SKIP FOR INPUT
1508 ANDI A,-1 ; ISOLATE JFCN
1510 JRST OPFLOS ; REPORT ERROR
1512 ASH A,1 ; POINT TO SLOT
1513 ADDI A,CHNL0 ; TO REAL SLOT
1514 MOVEM B,1(A) ; SAVE CHANNEL
1515 MOVE C,T.SPDL+1(TB) ; POINT TO P BASE
1516 HRRZ A,S.DIR(C) ; 0/ 0 FOR READ 0/ 1 FOR PRINT
1517 MOVEI 0,C.OPN+C.READ
1519 MOVEI 0,C.OPN+C.PRIN
1524 CVSKT ; GET ABS SOCKET #
1525 FATAL NETWORK BITES THE BAG!
1537 MOVE 0,[PUSHJ P,DONETO]
1538 TRNN C,1 ; SKIP FOR OUTPUT
1539 MOVE 0,[PUSHJ P,DONETI]
1541 MOVEI 0,80. ; LINELENGTH
1542 TRNE C,1 ; SKIP FOR INPUT
1544 MOVEI A,3 ; GET STATE UVECTOR
1553 MOVE A,CHANNO(B) ; GET JFN
1559 MOVEM B,(C) ; INITIAL STATE STORED
1563 ; DOIOT FOR TENEX NETWRK
1574 MOVEI 0,(A) ; POSSIBLE OUTPUT CHAR TO 0
1580 MOVEI A,(B) ; RET CHAR IN A
1603 JFFO 0,FIXS3 ; PUT OCTAL DIGITS INTO STIRNG
1615 ROTC 0,3 ; NEXT DIGIT
1624 TLNE C,760000 ; SKIP IF NEW WORD
1633 MOVEM D,RNAME2(E) ; UPDATE FOREIGN SOCHKET
1634 MOVEM C,RSNAME(E) ; AND HOST
1636 XCT ITSTRN(B) ; XLATE TO LOOK MORE LIKE ITS
1637 MOVEM B,(C) ; STORE STATE
1657 NLOSS: FATAL ILLEGAL NETWORK STATE
1659 NOPND: MOVE B,DIRECT(E) ; SEE IF READ OR PRINT
1660 ILDB B,B ; GET 1ST CHAR
1661 CAIE B,"R ; SKIP FOR READ
1663 SIBE ; SEE IF INPUT EXISTS
1667 MOVEM B,2(C) ; STORE BYTES IN STATE VECTOR
1668 MOVEI B,11 ; RETURN DATA PRESENT STATE
1671 NOPNDW: SOBE ; SEE IF OUTPUT PRESENT
1679 NCLSD: MOVE B,DIRECT(E)
1693 MFUNCTION NETSTATE,SUBR
1704 CAME A,MODES+1 ; PRINT OR PRINTB?
1710 NETRET: MOVE B,1(AB)
1714 MFUNCTION NETACC,SUBR
1724 ; HERE TO OPEN TELETYPE DEVICES
1726 OTTY: HRRZ A,S.DIR(C) ; GET DIR CODE
1727 TRNE A,2 ; SKIP IF NOT READB/PRINTB
1728 JRST WRONGD ; CANT DO THAT
1731 MOVE A,S.NM1(C) ; CHECK FOR A DIR
1733 CAMN A,[SIXBIT /.FILE./]
1734 CAME 0,[SIXBIT /(DIR)/]
1736 JRST OUTN ; DO IT THAT WAY
1738 HRRZ A,S.DIR(C) ; CHECK DIR
1742 PUSH P,S.DEV(C) ; SAVE THE SIXBIT DEV NAME
1743 ; HRLZS (P) ; POSTITION DEVICE NAME
1745 TTYLP: SKIPN D,1(E) ; CHANNEL OPEN?
1746 JRST TTYLP1 ; NO, GO TO NEXT
1747 MOVE A,RDEVIC-1(D) ; GET DEV NAME
1749 PUSHJ P,STRTO6 ; TO 6 BIT
1750 POP P,A ; GET RESULT
1752 JRST SAMTYQ ; COULD BE THE SAME
1753 TTYLP1: ADD E,[2,,2]
1755 SUB P,[1,,1] ; THIS ONE MUST BE UNIQUE
1756 TTYLP2: MOVE C,T.SPDL+1(TB) ; POINT TO P BASE
1757 HRRZ A,S.DIR(C) ; GET DIR OF OPEN
1758 SKIPE A ; IF OUTPUT,
1759 IORI A,20 ; THEN USE DISPLAY MODE
1760 HRLM A,S.DIR(C) ; STORE IN OPEN BLOCK
1761 PUSHJ P,OPEN2 ; OPEN THE TTY
1762 MOVE A,S.DEV(C) ; GET DEVICE NAME
1763 PUSHJ P,6TOCHS ; TO A STRING
1764 MOVE D,T.CHAN+1(TB) ; POINT TO CHANNEL
1767 MOVE C,T.SPDL+1(TB) ; RESTORE PDL BASE
1768 MOVE B,D ; CHANNEL TO B
1769 HRRZ 0,S.DIR(C) ; AND DIR
1771 TTY1: DOTCAL TTYGET,[CHANNO(B),[2000,,0],[2000,,A],[2000,,D]]
1773 DOTCAL TTYSET,[CHANNO(B),MODE1,MODE2,D]
1775 MOVE A,[PUSHJ P,GMTYO]
1777 DOTCAL RSSIZE,[CHANNO(B),[2000,,A],[2000,,D]]
1785 IOTMAK: HRLZ A,CHANNO(B) ; GET CHANNEL
1787 IOR A,[.IOT A] ; BUILD IOT
1788 MOVEM A,IOINS(B) ; AND STORE IT
1792 ; HERE IF POSSIBLY OPENING AN ALREADY OPEN TTY
1794 SAMTYQ: MOVE D,1(E) ; RESTORE CURRENT CHANNEL
1795 MOVE A,DIRECT-1(D) ; GET DIR
1798 POP P,A ; GET SIXBIT
1801 CAME A,MODES(C) ; SKIP IF DIFFERENT DIRECTION
1804 ; HERE IF A RE-OPEN ON A TTY
1806 HRRZ 0,FSAV(TB) ; IS IT FROM A FOPEN
1808 JRST RETOLD ; RET OLD CHANNEL
1811 PUSH TP,1(E) ; PUSH OLD CHANNEL
1813 PUSH TP,T.CHAN+1(TB)
1814 MOVE A,[PUSHJ P,CHNFIX]
1815 MOVEI PVP,0 ; SAY MIGHT BE NON-ATOMS
1819 RETOLD: MOVE B,1(E) ; GET CHANNEL
1820 AOS CHANNO-1(B) ; AOS REF COUNT
1822 SUB P,[1,,1] ; CLEAN UP STACK
1823 JRST OPNRET ; AND LEAVE
1826 ; ROUTINE TO PASS TO GCHACK TO FIX UP CHANNEL POINTER
1828 CHNFIX: CAIN C,TCHAN
1831 MOVE D,-2(TP) ; GET REPLACEMENT
1833 MOVEM D,1(B) ; CLOBBER IT AWAY
1838 MOVE C,T.SPDL+1(TB) ; POINT TO P BASE
1839 HRRZ 0,S.DIR(C) ; 0/ 0 FOR READ 0/ 1 FOR PRINT
1840 MOVE A,[PUSHJ P,INMTYO]
1843 MOVEI A,100 ; PRIM INPUT JFN
1845 MOVEI E,C.OPN+C.READ+C.TTY
1847 MOVEM B,CHNL0+2*100+1
1849 TNXTY1: MOVEM B,CHNL0+2*101+1
1850 MOVEI A,101 ; PRIM OUTPUT JFN
1851 MOVEI E,C.OPN+C.PRIN+C.TTY
1853 TNXTY2: MOVEM A,CHANNO(B)
1856 ; SETUP FUNNY BUFFER FOR TTY INPUT DEVICES
1858 TTYSPC: MOVEI A,EXTBFR ; GET EXTRA BUFFER
1859 PUSHJ P,IBLOCK ; GET BLOCK
1860 MOVE D,T.CHAN+1(TB) ;RESTORE CHANNEL POINTER
1872 MOVEM A,EXBUFR-1(D) ; FOR WAITING TTY BUFFERS
1873 SETZM EXBUFR(D) ; NIL LIST
1874 MOVEM B,BUFRIN(D) ;STORE IN CHANNEL
1875 MOVSI A,TUVEC ;MAKE SURE TYPE IS UNIFORM VECTOR
1877 MOVEI A,177 ;SET ERASER TO RUBOUT
1879 SETZM KILLCH(B) ;NO KILL CHARACTER NEEDED
1880 MOVEI A,33 ;BREAKCHR TO C.R.
1882 MOVEI A,"\ ;ESCAPER TO \
1884 MOVE A,[010700,,BYTPTR(E)] ;RELATIVE BYTE POINTER
1886 MOVEI A,14 ;BARF BACK CHARACTER FF
1891 ; SETUP DEFAULT TTY INTERRUPT HANDLER
1894 PUSH TP,MQUOTE CHAR,CHAR,INTRUP
1896 PUSH TP,[10] ; PRIORITY OF CHAR INT
1899 MCALL 3,EVENT ; 1ST MAKE AN EVENT EXIST
1903 PUSH TP,[QUITTER] ; DEFAULT HANDLER IS QUITTER
1906 ; BUILD A NULL STRING
1909 PUSHJ P,IBLOCK ; USE A BLOCK
1919 MOVE B,D ; CHANNEL TO B
1923 ; ROUTINE TO OPEN ITS CHANNEL WITHOUT .RCHST
1926 OPEN2: MOVEI A,S.DIR(C) ; POINT TO OPEN BLOCK
1927 PUSHJ P,MOPEN ; OPEN THE FILE
1929 MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK
1930 MOVEM A,CHANNO(B) ; SAVE THE CHANNEL
1933 ; FIX UP MODE AND FALL INTO OPEN
1935 OPEN0: HRRZ A,S.DIR(C) ; GET DIR
1936 TRNE A,2 ; SKIP IF NOT BLOCK
1937 IORI A,4 ; TURN ON IMAGE
1938 IORI A,2 ; AND BLOCK
1942 PUSH TP,C ; SAVE CRUFT TO CHECK FOR PRINTO, HA HA
1945 MOVE B,DIRECT(B) ; THIS KLUDGE THE MESS OF NDR
1948 POP P,D ; THE SIXBIT FOR KLUDGE
1949 POP P,A ; GET BACK THE RANDOM BITS
1951 CAME D,[SIXBIT /PRINAO/]
1952 CAMN D,[SIXBIT /PRINTO/]
1953 IORI A,100000 ; WRITEOVER BIT
1956 IORI A,10 ; DON'T CHANGE REF DATE
1957 OPEN9: HRLM A,S.DIR(C) ; AND STORE IT
1959 ; ROUTINE TO ATTEMPT TO OPEN A REAL ITS CHANNEL
1961 OPEN1: MOVEI A,S.DIR(C) ; POINT TO OPEN BLOCK
1964 MOVE B,T.CHAN+1(TB) ; GET CHANNEL BACK
1965 MOVEM A,CHANNO(B) ; CLOBBER INTO CHANNEL
1966 DOTCAL RFNAME,[A,[2003,,S.DEV],[2003,,S.NM1],[2003,,S.NM2],[2003,,S.SNM]]
1969 ; NOW CLOBBER THE TVP SLOT FOR THIS CHANNEL
1971 OPEN3: MOVE A,S.DIR(C)
1972 MOVEI 0,C.OPN+C.READ
1974 MOVEI 0,C.OPN+C.PRIN
1978 MOVE A,CHANNO(B) ; GET CHANNEL #
1980 ADDI A,CHNL0 ; POINT TO SLOT
1981 MOVEM B,1(A) ; NOT: TYPE ALREADY SETUP
1983 ; NOW GET STATUS WORD
1985 DOSTAT: HRRZ A,CHANNO(B) ; NOW GET STATUS WORD
1986 DOTCAL STATUS,[A,[2002,,STATUS]]
1991 ; HERE IF OPEN FAILS (CHANNEL IS IN A)
1993 OPNLOS: JUMPL A,NOCHAN ; ALL CHANNELS ARE IN USE
1994 LSH A,23. ; DO A .STATUS
1998 PUSHJ P,GFALS ; GET A FALSE WITH A MESSAGE
1999 SUB P,[1,,1] ; EXTRA RET ADDR FLUSHED
2000 JRST OPNRET ; AND RETURN
2005 IFN ITS, PUSHJ P,GFALS
2006 IFE ITS, PUSHJ P,TGFALS
2009 ; ROUTINE TO CONS UP FALSE WITH REASON
2011 GFALS: PUSH TP,$TCHAN
2013 PUSH P,[SIXBIT / ERR/] ; SET UP OPEN TO ERR DEV
2014 PUSH P,[3] ; SAY ITS FOR CHANNEL
2016 .OPEN 0,-2(P) ; USE CHANNEL 0 FOR THIS
2017 FATAL CAN'T OPEN ERROR DEVICE
2018 SUB P,[3,,3] ; DONT WANT OPEN BLOCK NOW
2020 MOVEI A,0 ; PREPARE TO BUILD STRING ON STACK
2021 EL1: PUSH P,[0] ; WHERE IT WILL GO
2022 MOVSI B,(<440700,,(P)>) ; BYTE POINTER TO TOP OF STACK
2023 EL2: .IOT 0,0 ; GET A CHAR
2024 JUMPL 0,EL3 ; JUMP ON -1,,3
2026 JRST EL3 ; YES, MAKE STRING
2027 CAIN 0,14 ; IGNORE FORM FEEDS
2028 JRST EL2 ; IGNORE FF
2029 CAIE 0,15 ; IGNORE CR & LF
2033 TLNE B,760000 ; SIP IF WORD FULL
2035 AOJA A,EL1 ; COUNT WORD AND GO
2049 MOVSI B,(<440700,,(P)>)
2051 IRP XX,,[RDEVIC,RSNAME,RNAME1,RNAME2]YY,,[0,72,73,40]
2062 SKIPN (P) ; ANY CHARS AT END?
2063 SUB P,[1,,1] ; FLUSH XTRA
2064 PUSH P,A ; PUT UP COUNT
2065 .CLOSE 0, ; CLOSE THE ERR DEVICE
2066 PUSHJ P,CHMAK ; MAKE STRING
2073 IFE FNAMS, MOVEI A,1
2080 MOVSI A,TFALSE ; MAKEIT A FALSE
2081 IFN FNAMS, SUB TP,[2,,2]
2088 MOVSI B,(<440700,,(P)>)
2099 ; ROUTINE TO FILL IN THE "REAL" SLOTS FOR THE CHANNEL
2102 IFE ITS, HRLZS S.DEV(C) ; KILL MODE BITS
2105 FIXRE1: MOVEI A,(D) ; COPY REL POINTER
2106 ADD A,T.SPDL+1(TB) ; POINT TO SLOT
2107 SKIPN A,(A) ; SKIP IF GOODIE THERE
2109 PUSHJ P,6TOCHS ; MAKE INOT A STRING
2110 MOVE C,RDTBL-S.DEV(D); GET OFFSET
2114 FIXRE2: AOBJN D,FIXRE1
2119 HRR A,CHANNO(B) ; GET CHANNEL
2120 DOTCAL OPEN,[A,-3(P),-2(P),-1(P),(P)]
2126 ;THIS ROUTINE CONVERTS MUDDLE CHARACTER STRINGS TO SIXBIT FILE NAMES
2129 PUSH P,E ;SAVE USEFUL FROB
2130 MOVEI E,(A) ; CHAR COUNT TO E
2132 CAIE A,TCHSTR ; IS IT ONE WORD?
2134 CAILE E,6 ; SKIP IF L=? 6 CHARS
2136 CHREAD: MOVEI A,0 ;INITIALIZE OUTPUT WORD
2137 MOVE D,[440600,,A] ;AND BYTE POINTER TO IT
2138 NEXCHR: SOJL E,SIXDON
2139 ILDB 0,B ; GET NEXT CHAR
2140 CAIN 0,^Q ; CNTL-Q, QUOTES NEXT CHAR
2142 JUMPE 0,SIXDON ;IF NULL, WE ARE FINISHED
2143 PUSHJ P,A0TO6 ; CONVERT TO SIXBIT
2144 IDPB 0,D ;DEPOSIT INTO SIX BIT
2145 JRST NEXCHR ; NO, GET NEXT
2146 SIXDON: SUB TP,[2,,2] ;FIX UP TP
2148 EXCH A,(P) ;LEAVE RESULT ON P-STACK
2149 JRST (A) ;NOW RETURN
2152 ;SUBROUTINE TO CONVERT SIXBIT TO ATOM
2156 MOVEI B,0 ;MAX NUMBER OF CHARACTERS
2157 PUSH P,[0] ;STRING WILL GO ON P SATCK
2158 JUMPE A,GETATM ; EMPTY, LEAVE
2159 MOVEI E,-1(P) ;WILL BE BYTE POINTER
2160 HRLI E,10700 ;SET IT UP
2161 PUSH P,[0] ;SECOND POSSIBLE WORD
2162 MOVE D,[440600,,A] ;INPUT BYTE POINTER
2163 6LOOP: ILDB 0,D ;START CHAR GOBBLING
2164 ADDI 0,40 ;CHANGET TOASCII
2165 IDPB 0,E ;AND STORE IT
2166 TLNN D,770000 ; SKIP IF NOT DONE
2168 TDNN A,MSKS(B) ; CHECK IF JUST SPACES LEFT
2169 AOJA B,GETATM ; YES, DONE
2170 AOJA B,6LOOP ;KEEP LOOKING
2171 6LOOP1: PUSH P,[6] ;IF ARRIVE HERE, STRING IS 2 WORDS
2173 GETATM: MOVEM B,(P) ;SET STRING LENGTH=1
2174 PUSHJ P,CHMAK ;MAKE A MUDDLE STRING
2188 A0TO6: CAIL 0,141 ;IF IT IS GREATER OR EQUAL TO LOWER A
2189 CAILE 0,172 ;BUT LESS THAN OR EQUAL TO LOWER Z
2191 SUBI 0,40 ;CONVERT TO UPPER CASE
2192 SUBI 0,40 ;NOW TO SIX BIT
2193 JUMPL 0,BAD6 ;CHECK FOR A WINNER
2198 ; SUBR TO TEST THE EXISTENCE OF FILES
2200 MFUNCTION FEXIST,SUBR,[FILE-EXISTS?]
2206 PUSH TP,P ; SAVE P-STACK BASE
2208 MOVSI E,-4 ; 4 THINGS TO PUSH
2210 IFN ITS, MOVE B,@RNMTBL(E)
2211 IFE ITS, MOVE B,@FETBL(E)
2216 CAIE 0,TCHSTR ; SKIP IF WINS
2219 IFN ITS, PUSHJ P,STRTO6 ; CONVERT TO SIXBIT
2224 PUSH TP,A ; DEFAULT TYPE AND VALUE GIVEN BY USER
2225 PUSH TP,B ; IN VALUE OF DEV, SNM, NM1, NM2
2231 IFN ITS, PUSH P,EXISTS(E) ; USE DEFAULT
2233 PUSH TP,FETYP(E) ; DEFAULT TYPE AND VALUE IF NO
2234 PUSH TP,FEVAL(E) ; DEFAULT GIVEN BY USER
2238 PUSHJ P,RGPRS ; PARSE THE ARGS
2239 JRST TMA ; TOO MANY ARGUMENTS
2242 MOVE 0,-3(P) ; GET SIXBIT DEV NAME
2244 CAMN 0,[SIXBITS /DSK /]
2245 MOVSI B,10 ; DONT SET REF DATE IF DISK DEV
2247 DOTCAL OPEN,[B,[17,,-3],[17,,-2],[17,,-1],[17,,0]]
2250 JRST FDLWON ; WON!!!
2251 .STATUS 0,A ; FIND THE STATUS OF CHANNEL BEFORE POPING
2257 SUBI B,10 ; GET B TO POINT CORRECTLY TO ARGS
2258 PUSHJ P,STSTK ; GET FILE NAME IN A STRING
2259 HRROI B,1(E) ; POINT B TO THE STRING
2262 JRST TDLLOS ; FILE DOES NOT EXIST
2263 RLJFN ; FILE EXIST SO RETURN JFN
2265 JRST FDLWON ; SUCCESS
2269 EXISTS: SIXBITS /DSK INPUT > /
2272 FETBL: SETZ IMQUOTE NM1
2282 FEVAL: 440700,,[ASCIZ /INPUT/]
2283 440700,,[ASCIZ /MUD/]
2284 440700,,[ASCIZ /DSK/]
2288 ; SUBR TO DELETE AND RENAME FILES
2290 MFUNCTION RENAME,SUBR
2296 PUSH TP,P ; SAVE P-STACK BASE
2297 GETYP 0,(AB) ; GET 1ST ARG TYPE
2299 CAIN 0,TCHAN ; CHANNEL?
2300 JRST CHNRNM ; MUST BE RENAME WHILE OPEN FOR WRITING
2304 PUSH P,[377777,,377777]
2306 MOVSI E,-4 ; 4 THINGS TO PUSH
2307 RNMALP: MOVE B,@RNMTBL(E)
2312 CAIE 0,TCHSTR ; SKIP IF WINS
2315 IFN ITS, PUSHJ P,STRTO6 ; CONVERT TO SIXBIT
2324 RNMLP1: PUSH P,RNSTBL(E) ; USE DEFAULT
2328 PUSHJ P,RGPRS ; PARSE THE ARGS
2329 JRST RNM1 ; COULD BE A RENAME
2331 ; HERE TO DELETE A FILE
2333 DELFIL: MOVE A,(P) ; AND GET SNAME
2335 DOTCAL DELETE,[[17,,-3],[17,,-2],[17,,-1],[17,,0]]
2336 JRST FDLST ; ANALYSE ERROR
2338 FDLWON: MOVSI A,TATOM
2346 MOVE A,(TP) ; GET BASE OF PDL
2347 MOVEI A,1(A) ; POINT TO CRAP
2348 CAMGE AB,[-3,,] ; SKIP IF DELETE
2349 HLLZS (A) ; RESET DEFAULT
2355 ADD AB,[2,,2] ; PAST ARG
2356 JUMPL AB,RNM1 ; GO TRY FOR RENAME
2357 MOVE P,(TP) ; RESTORE P STACK
2358 MOVEI C,(A) ; FOR RELEASE
2359 DELF ; ATTEMPT DELETE
2361 RLJFN ; MAKE SURE FLUSHED
2364 FDLWON: MOVSI A,TATOM
2375 POP P,A ; ERR NUMBER BACK
2377 PUSHJ P,TGFALS ; GET FALSE WITH REASON
2380 DELLOS: PUSH P,A ; SAVE ERROR
2384 ;TABLE OF REANMAE DEFAULTS
2391 RNSTBL: SIXBIT /DSK _MUDS_> /
2394 RNMTBL: SETZ IMQUOTE DEV
2399 RNSTBL: -1,,[ASCIZ /DSK/]
2401 -1,,[ASCIZ /_MUDS_/]
2404 ; HERE TO DO A RENAME
2406 RNM1: JUMPGE AB,TMA ; IF ARGS EXHAUSTED, MUST BE TOO MUCH STRING
2408 MOVE C,1(AB) ; GET ARG
2409 CAIN 0,TATOM ; IS IT "TO"
2411 JRST WRONGT ; NO, LOSE
2412 ADD AB,[2,,2] ; BUMP PAST "TO"
2415 MOVEM P,T.SPDL+1(TB) ; SAVE NEW P-BASE
2417 MOVEI 0,4 ; FOUR DEFAULTS
2418 PUSH P,-3(P) ; DEFAULT DEVICE IS CURRENT
2421 PUSHJ P,RGPRS ; PARSE THE NEXT STRING
2424 MOVE A,-7(P) ; FIX AND GET DEV1
2425 MOVE B,-3(P) ; SAME FOR DEV2
2429 POP P,A ; GET SNAME 2
2430 CAME A,(P)-3 ; SNAME 1
2433 POP P,-2(P) ; MOVE NAMES DOWN
2435 DOTCAL RENAME,[[17,,-4],[17,,-3],[17,,-2],A,[17,,-1],(P)]
2439 ; HERE FOR RENAME WHILE OPEN FOR WRITING
2441 CHNRNM: ADD AB,[2,,2] ; NEXT ARG
2443 MOVE B,-1(AB) ; GET CHANNEL
2444 SKIPN CHANNO(B) ; SKIP IF OPEN
2446 MOVE A,DIRECT-1(B) ; CHECK DIRECTION
2448 PUSHJ P,STRTO6 ; TO 6 BIT
2450 CAME A,[SIXBIT /PRINT/]
2451 CAMN A,[SIXBIT /PRINTB/]
2453 CAMN A,[SIXBIT /PRINAO/]
2455 CAME A,[SIXBIT /PRINTO/]
2458 ; SET UP .FDELE BLOCK
2462 MOVEM P,T.SPDL+1(TB)
2464 PUSH P,[SIXBIT /_MUDL_/]
2468 PUSHJ P,RGPRS ; PARSE THESE
2471 SUB P,[1,,1] ; SNAME/DEV IGNORED
2472 MOVE AB,ABSAV(TB) ; GET ORIG ARG POINTER
2474 MOVE A,CHANNO(B) ; ITS CHANNEL #
2475 DOTCAL RENMWO,[A,[17,,-1],(P)]
2477 MOVE A,CHANNO(B) ; ITS CHANNEL #
2478 DOTCAL RFNAME,[A,[2017,,-4],[2017,,-3],[2017,,-2],[2017,,-1]]
2480 MOVE A,-3(P) ; UPDATE CHANNEL
2481 PUSHJ P,6TOCHS ; GET A STRING
2499 MOVE A,(TP) ; PBASE BACK
2506 MOVEI C,(A) ; FOR RELEASE ATTEMPT
2512 MOVEI A,(C) ; MAKE SURR OTHER IS FLUSHED
2520 MOVEI A,(A) ; LNTH OF STRING
2522 JUMPN B,NONUAD ; DONT NEED TO ADD ONE
2527 PUSHJ P,CISTNG ; COPY OF STRING
2534 ; HERE FOR LOSING .FDELE
2537 FDLST: .STATUS 0,A ; GET STATUS
2539 PUSHJ P,GFALS ; ANALYZE IT
2543 ; SOME .FDELE ERRORS
2545 DEVDIF: ERRUUO EQUOTE DEVICE-OR-SNAME-DIFFERS
2547 \f; HERE TO RESET A READ CHANNEL
2549 MFUNCTION FRESET,SUBR,RESET
2555 MOVE B,1(AB) ;GET CHANNEL
2556 SKIPN IOINS(B) ; OPEN?
2557 JRST REOPE1 ; NO, IGNORE CHECKS
2559 MOVE A,STATUS(B) ;GET STATUS
2561 JUMPE A,REOPE1 ;IF IT CLOSED, JUST REOPEN IT, MAYBE?
2562 CAILE A,2 ;SKIPS IF TTY FLAVOR
2568 CAIN A,101 ; TTY-OUT
2575 REATT1: MOVEI B,DIRECT-1(B) ;POINT TO DIRECTION
2576 PUSHJ P,CHRWRD ;CONVERT TO A WORD
2578 CAME B,[ASCII /READ/]
2580 MOVE B,1(AB) ;RESTORE CHANNEL
2581 PUSHJ P,RRESET" ;DO REAL RESET
2584 REOPEN: PUSH TP,(AB) ;FIRST CLOSE IT
2587 MOVE B,1(AB) ;RESTORE CHANNEL
2589 ; SET UP TEMPS FOR OPNCH
2591 REOPE1: PUSH P,[0] ; WILL HOLD DIR CODE
2594 IRP A,,[DIRECT,RNAME1,RNAME2,RDEVIC,RSNAME,ACCESS]
2603 MOVE B,T.DIR+1(TB) ; GET DIRECTION
2604 PUSHJ P,CHMOD ; CHECK THE MODE
2605 MOVEM A,(P) ; AND STORE IT
2607 ; NOW SET UP OPEN BLOCK IN SIXBIT
2610 MOVSI E,-4 ; AOBN PNTR
2611 FRESE2: MOVE B,T.CHAN+1(TB)
2612 MOVEI A,@RDTBL(E) ; GET ITEM POINTER
2613 GETYP 0,-1(A) ; GET ITS TYPE
2616 MOVE B,(A) ; GET STRING
2619 FRESE3: AOBJN E,FRESE2
2625 PUSHJ P,STRTO6 ; RESULT ON STACK
2629 PUSH P,[0] ; PUSH UP SOME DUMMIES
2632 PUSHJ P,OPNCH ; ATTEMPT TO DO THEOPEN
2635 JRST FINIS ; LEAVE IF FALSE OR WHATEVER
2639 SETZM CHRPOS(B) ;INITIALIZE THESE PARAMETERS
2651 DOTCAL RSSIZE,[CHANNO(B),[2000,,C],[2000,,D]]
2665 ; INTERFACE TO REOPEN CLOSED CHANNELS
2667 OPNCHN: PUSH TP,$TCHAN
2672 REATTY: PUSHJ P,TTYOP2
2673 IFE ITS, SKIPN DEMFLG ; SKIP IF DEMONFLAG IS ON
2679 ; FUNCTION TO LIST ALL CHANNELS
2681 MFUNCTION CHANLIST,SUBR
2685 MOVEI A,N.CHNS-1 ;MAX # OF REAL CHANNELS
2687 MOVEI B,CHNL1 ;POINT TO FIRST REAL CHANNEL
2689 CHNLP: SKIPN 1(B) ;OPEN?
2690 JRST NXTCHN ;NO, SKIP
2691 HRRE E,(B) ; ABOUT TO FLUSH?
2692 JUMPL E,NXTCHN ; YES, FORGET IT
2693 MOVE D,1(B) ; GET CHANNEL
2694 HRRZ E,CHANNO-1(D) ; GET REF COUNT
2697 ADDI C,1 ;COUNT WINNERS
2698 SOJGE E,.-3 ; COUNT THEM
2702 SKIPN B,CHNL0+1 ;NOW HACK LIST OF PSUEDO CHANNELS
2710 MAKLST: ACALL C,LIST
2713 \f; ROUTINE TO RESTORE A CLOSED CHANNEL TO ITS PREVIOUS STATE
2716 REOPN: PUSH TP,$TCHAN
2718 SKIPN CHANNO(B) ; ONLY REAL CHANNELS
2722 MOVSI E,-4 ; SET UP POINTER FOR NAMES
2724 GETOPB: MOVE B,(TP) ; GET CHANNEL
2725 MOVEI A,@RDTBL(E) ; GET POINTER
2726 MOVE B,(A) ; NOW STRING
2728 PUSHJ P,STRTO6 ; LEAVES SIXBIT ON STACK
2734 PUSHJ P,STRTO6 ; GET DEV NAME IN SIXBIT
2736 MOVE B,(TP) ; RESTORE CHANNEL
2739 PUSHJ P,CHMOD ; CHECK FOR A VALID MODE
2741 IFN ITS, MOVE E,-3(P) ; GET DEVICE IN PROPER PLACE
2742 IFE ITS, HLRZS E,(P)
2743 MOVE B,(TP) ; RESTORE CHANNEL
2744 IFN ITS, CAMN E,[SIXBIT /DSK /]
2746 CAIE E,(SIXBIT /PS /)
2747 CAIN E,(SIXBIT /DSK/)
2748 JRST DISKH ; DISK WINS IMMEIDATELY
2749 CAIE E,(SIXBIT /SS /)
2750 CAIN E,(SIXBIT /SRC/)
2751 JRST DISKH ; DISK WINS IMMEIDATELY
2753 IFN ITS, CAMN E,[SIXBIT /TTY /] ; NO NEED TO RE-OPEN THE TTY
2754 IFE ITS, CAIN E,(SIXBIT /TTY/)
2757 AND E,[777700,,0] ; COULD BE "UTn"
2758 MOVE D,CHANNO(B) ; GET CHANNEL
2760 ADDI D,CHNL0 ; DON'T SEEM TO BE OPEN
2763 CAMN E,[SIXBIT /UT /]
2764 JRST REOPD ; CURRENTLY, CANT RESTORE UTAPE CHANNLES
2765 CAMN E,[SIXBIT /AI /]
2766 JRST REOPD ; CURRENTLY CANT RESTORE AI CHANNELS
2767 CAMN E,[SIXBIT /ML /]
2768 JRST REOPD ; CURRENTLY CANT RESTORE ML CHANNELS
2769 CAMN E,[SIXBIT /DM /]
2770 JRST REOPD ; CURRENTLY CANT RESTORE DM CHANNELS
2772 PUSH TP,$TCHAN ; TRY TO RESET IT
2784 REOPD0: SUB TP,[2,,2]
2788 DISKH: MOVE C,(P) ; SNAME
2792 DISKH: MOVEM A,(P) ; SAVE MODE WORD
2793 PUSHJ P,STSTK ; STRING TO STACK
2794 MOVE A,(E) ; RESTORE MODE WORD
2796 PUSH TP,E ; SAVE PDL BASE
2797 MOVE B,-2(TP) ; CHANNEL BACK TO B
2799 MOVE C,ACCESS(B) ; GET CHANNELS ACCESS
2800 TRNN A,2 ; SKIP IF NOT ASCII CHANNEL
2802 HRRZ D,ACCESS-1(B) ; IF PARTIAL WORD OUT
2803 IMULI C,5 ; TO CHAR ACCESS
2804 JUMPE D,DISKH1 ; NO SWEAT
2807 DISKH1: HRRZ D,BUFSTR-1(B) ; ANY CHARS IN MUDDLE BUFFER
2809 TRNN A,1 ; SKIP IF OUTPUT CHANNEL
2814 PUSHJ P,BYTDOP ; FIND LENGTH OF WHOLE BUFFER
2815 HLRZ D,(A) ; LENGTH + 2 TO D
2817 IMULI D,5 ; TO CHARS
2821 DISKH2: SUBI C,(D) ; UPDATE CHAR ACCESS
2822 IDIVI C,5 ; BACK TO WORD ACCESS
2824 IORI A,6 ; BLOCK IMAGE
2826 IORI A,100000 ; WRITE OVER BIT
2829 MOVE A,C ; ACCESS TO A
2830 PUSHJ P,GETFLN ; CHECK LENGTH
2831 CAIGE 0,(A) ; CHECK BOUNDS
2833 PUSHJ P,DOACCS ; AND ACESS
2834 JRST REOPD1 ; SUCCESS
2836 MOVE A,CHANNO(B) ; CLOSE THE G.D. CHANNEL
2842 DOTCAL ACCESS,[A,(P)]
2853 MOVEM 0,BSTO(PVP) ; IN CASE OF INTERRUPT
2864 GETFLN: MOVE 0,CHANNO(B) ; GET CHANNEL
2865 .CALL FILBLK ; READ LNTH
2872 402000,,0 ; STUFF RESULT IN 0
2878 SETZM 1(A) ; MAY GET A DIFFERENT JFN
2879 HRROI B,1(E) ; TENEX STRING POINTER
2880 MOVSI A,400001 ; MAKE SURE
2882 JRST RGTJL ; COMPLAIN
2884 HRRZM A,CHANNO(D) ; COULD HAVE CHANGED
2885 MOVE P,(TP) ; RESTORE P
2887 ASH A,1 ; MUNG ITS SLOT
2890 HLLOS (A) ; MARK CHANNEL NOT TO BE RELOOKED AT
2891 MOVE A,(P) ; MODE WORD BACK
2892 MOVE B,[440000,,200000] ; FLAG BITS
2893 TRNE A,1 ; SKIP FOR INPUT
2894 TRC B,300000 ; CHANGE TO WRITE
2895 MOVE A,CHANNO(D) ; GET JFN
2898 MOVE E,C ; LENGTH TO E
2899 SIZEF ; GET CURRENT LENGTH
2901 CAMGE B,E ; STILL A WINNER
2903 MOVE A,CHANNO(D) ; JFN
2907 SUB TP,[2,,2] ; FLUSH PDL POINTER
2910 ROPFLS: MOVE A,-2(TP)
2912 CLOSF ; ATTEMPT TO CLOSE
2913 JFCL ; IGNORE FAILURE
2928 PSUEDO: AOS (P) ; ASSUME SUCCESS FOR NOW
2929 MOVEI B,RDEVIC-1(B) ; SEE WHAT DEVICE IS
2932 JRST REOPD0 ; NO, RETURN HAPPY
2933 IFN 0,[ CAME B,[ASCII /E&S/] ; DISPLAY ?
2934 CAMN B,[ASCII /DIS/]
2935 SKIPA B,(TP) ; YES, REGOBBLE CHANNEL AND CONTINUE
2936 JRST REOPD0 ; NO, RETURN HAPPY
2938 SOS (P) ; DISPLAY DID NOT REOPEN, UNDO ASSUMPTION OF SUCCESS
2941 \f;THIS PROGRAM CLOSES THE SPECIFIED CHANNEL
2943 MFUNCTION FCLOSE,SUBR,[CLOSE]
2945 ENTRY 1 ;ONLY ONE ARG
2946 GETYP A,(AB) ;CHECK ARGS
2947 CAIE A,TCHAN ;IS IT A CHANNEL
2949 MOVE B,1(AB) ;PICK UP THE CHANNEL
2950 HRRZ A,CHANNO-1(B) ; GET REF COUNT
2951 SOJGE A,CFIN5 ; NOT READY TO REALLY CLOSE
2952 CAME B,TTICHN+1 ; CHECK FOR TTY
2955 MOVE A,[JRST CHNCLS]
2956 MOVEM A,IOINS(B) ;CLOBBER THE IO INS
2957 MOVE A,RDEVIC-1(B) ;GET THE NAME OF THE DEVICE
2961 IFE ITS, HLRZS A,(P)
2962 MOVE B,1(AB) ; RESTORE CHANNEL
2964 CAME A,[SIXBIT /E&S /]
2965 CAMN A,[SIXBIT /DIS /]
2967 MOVE B,1(AB) ; IN CASE CLOBBERED BY DISCLS
2968 SKIPN A,CHANNO(B) ;ANY REAL CHANNEL?
2969 JRST REMOV ; NO, EITHER CLOSED OR PSEUDO CHANNEL
2971 MOVE A,DIRECT-1(B) ; POINT TO DIRECTION
2973 PUSHJ P,STRTO6 ; CONVERT TO WORD
2975 IFN ITS, LDB E,[360600,,(P)] ; FIRST CHAR OD DEV NAME
2976 IFE ITS, LDB E,[140600,,(P)] ; FIRST CHAR OD DEV NAME
2977 CAIE E,'T ; SKIP IF TTY
2979 CAME A,[SIXBIT /READ/] ; SKIP IF WINNER
2982 MOVE B,1(AB) ; IN ITS CHECK STATUS
2983 LDB A,[600,,STATUS(B)]
2988 PUSH TP,CHQUOTE CHAR
2991 MCALL 2,OFF ; TURN OFF INTERRUPT
2998 TLZ A,400000 ; FOR JFN RELEASE
2999 CLOSF ; CLOSE THE FILE AND RELEASE THE JFN
3004 ADDI A,CHNL0+1 ;POINT TO THIS CHANNELS LSOT
3006 SETZM (A) ;AND CLOBBER IT
3011 MOVSI A,TCHAN ;RETURN THE CHANNEL
3014 CLSTTY: ERRUUO EQUOTE ATTEMPT-TO-CLOSE-TTY-CHANNEL
3017 REMOV: MOVEI D,CHNL0+1 ;ATTEMPT TO REMOVE FROM PSUEDO CHANNEL LIST
3018 REMOV0: SKIPN C,D ;FOUND ON LIST ?
3019 JRST CFIN2 ;NO, JUST IGNORE THIS CLOSED CHANNEL
3020 HRRZ D,(C) ;GET POINTER TO NEXT
3021 CAME B,(D)+1 ;FOUND ?
3023 HRRZ D,(D) ;YES, SPLICE IT OUT
3028 ; CLOSE UP ANY LEFTOVER BUFFERS
3031 ; CAME A,[SIXBIT /PRINTO/]
3032 ; CAMN A,[SIXBIT /PRINTB/]
3034 ; CAME A,[SIXBIT /PRINT/]
3036 MOVE B,1(AB) ; GET CHANNEL
3037 HRRZ A,-2(B) ;GET MODE BITS
3040 GETYP 0,BUFSTR-1(B) ; IS THERE AN OUTPUT BUFFER
3056 CFINX1: HLLZS ACCESS-1(B)
3059 CFIN5: HRRM A,CHANNO-1(B)
3061 \f;SUBR TO DO .ACCESS ON A READ CHANNEL
3062 ;FORM: <ACCESS CHANNEL FIX-NUMBER>
3063 ;POSITIONS CHANNEL AT CHARACTER POSN FIX-NUMBER
3066 MFUNCTION MACCESS,SUBR,[ACCESS]
3067 ENTRY 2 ;ARGS: CHANNEL AND FIX-NUMBER
3069 ;CHECK ARGUMENT TYPES
3071 CAIE A,TCHAN ;FIRST ARG SHOULD BE CHANNEL
3073 GETYP A,2(AB) ;TYPE OF SECOND
3074 CAIE A,TFIX ;SHOULD BE FIX
3077 ;CHECK DIRECTION OF CHANNEL
3078 MOVE B,1(AB) ;B GETS PNTR TO CHANNEL
3079 ; MOVEI B,DIRECT-1(B) ;GET DIRECTION OF CHANNEL
3080 ; PUSHJ P,CHRWRD ;GRAB THE CHAR STRNG
3082 ; CAME B,[<ASCII /PRINT/>+1]
3083 HRRZ A,-2(B) ; GET MODE BITS
3087 SKIPE C,BUFSTR(B) ;SEE IF WE MUST FLUSH PART BUFFER
3091 ; CAMN B,[ASCIZ /READ/]
3093 ; CAME B,[ASCIZ /READB/] ; READB CHANNEL?
3095 ; AOS (P) ; SET INDICATOR FOR BINARY MODE
3097 ;CHECK THAT THE CHANNEL IS OPEN
3098 MACC: MOVE B,1(AB) ;GET BACK PTR TO CHANNEL
3101 JRST CHNCLS ;IF CHNL CLOSED => ERROR
3103 ;COMPUTE ACCESS PNTR TO ACCESS WORD CHAR IS IN
3104 ;REMAINDER IS NUMBER OF TIMES TO INCR BYTE POINTER
3105 ADEVOK: SKIPGE C,3(AB) ;GET CHAR POSN
3106 ERRUUO EQUOTE NEGATIVE-ARGUMENT
3108 TRNN E,C.BIN ; SKIP FOR BINARY FILE
3128 HRRM 0,LSTCH-1(B) ; UPDATE "LARGEST"
3129 NLSTCH: MOVE A,CHANNO(B) ;A GETS REAL CHANNEL NUMBER
3132 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
3137 SFPTR ; DO IT IN TENEX
3139 MOVE B,1(AB) ; RESTORE CHANNEL
3141 ; POP P,E ; CHECK FOR READB MODE
3143 JRST ACCOUT ; PRINT TYPE CHANNEL, GO DO IT
3144 SKIPE BUFSTR(B) ; IS THERE A READ BUFFER TO FLUSH
3146 SETZM LSTCH(B) ; CLEAR OUT POSSIBLE EOF INDICATOR
3149 ;NOW FORCE GETCHR TO DO A .IOT FIRST THING
3150 MOVEI C,BUFSTR-1(B) ; FIND END OF STRING
3152 SUBI A,2 ; LAST REAL WORD
3155 HLLZS BUFSTR-1(B) ; CLOBBER CHAR COUNT
3156 SETZM LSTCH(B) ;CLOBBER READ'S HIDDEN CHARACTER
3158 ;NOW DO THE APPROPRIATE NUM OF BYTE ADVANCEMENTS
3160 ADVPTR: PUSHJ P,GETCHR
3161 MOVE B,1(AB) ;RESTORE IN CASE CLOBBERED
3164 DONADV: MOVE C,3(AB) ;FIXUP ACCESS SLOT IN CHNL
3167 MOVE A,$TCHAN ;TYPE OF RESULT = "CHANNEL"
3168 JRST FINIS ;DONE...B CONTAINS CHANNEL
3171 ACCFAI: ERRUUO EQUOTE ACCESS-FAILURE
3173 ACCOUT: SKIPN C,BUFSTR(B) ; FIXUP BUFFER?
3183 ACCOU1: TRNE E,C.BIN ; FINISHED FOR BINARY CHANNELS
3186 JUMPE D,DONADV ; THIS CASE OK
3188 MOVE A,CHANNO(B) ; GET LAST WORD
3193 MOVE B,[444400,,E] ; READ THE WORD
3199 MOVE B,1(AB) ; CHANNEL BACK
3207 IFN ITS, ERRUUO EQUOTE CANT-ACCESS-ASCII-ON-ITS
3210 ;WRONG TYPE OF DEVICE ERROR
3211 WRDEV: ERRUUO EQUOTE NON-DSK-DEVICE
3213 ; BINARY READ AND PRINT ROUTINES
3215 MFUNCTION PRINTB,SUBR
3219 PBFL: PUSH P,. ; PUSH NON-ZERONESS
3222 MFUNCTION READB,SUBR
3232 BINI1: GETYP 0,(AB) ; SHOULD BE UVEC OR STORE
3236 JRST WTYP1 ; ELSE LOSE
3237 BINI2: MOVE B,1(AB) ; GET IT
3239 SUBI B,(C) ; POINT TO DOPE
3241 PUSHJ P,SAT" ; GET ITS ST.ALOC.TYPE
3245 CAIE 0,TCHAN ; BETTER BE A CHANNEL
3247 MOVE B,3(AB) ; GET IT
3248 ; MOVEI B,DIRECT-1(B) ; GET DIRECTION OF
3249 ; PUSHJ P,CHRWRD ; INTO 1 WORD
3252 ; CAMN B,[ASCII /READB/]
3254 ; CAMN B,[<ASCII /PRINT/>+1]
3255 HRRZ A,-2(B) ; MODE BITS
3256 TRNN A,C.BIN ; IF NOT BINARY
3261 ; JUMPL E,WRONGD ; LOSER
3262 CAME E,(P) ; CHECK WINNGE
3264 MOVE B,3(AB) ; GET CHANNEL BACK
3265 SKIPN A,IOINS(B) ; OPEN?
3266 PUSHJ P,OPENIT ; LOSE
3267 CAMN A,[JRST CHNCLS]
3268 JRST CHNCLS ; LOSE, CLOSED
3269 JUMPN E,BUFOU1 ; JUMP FOR OUTPUT
3270 CAML AB,[-5,,] ; SKIP IF EOF GIVEN
3276 BINI5: SKIPE LSTCH(B) ; INDICATES IF EOF HIT
3278 MOVE A,1(AB) ; GET VECTOR
3279 PUSHJ P,PGBIOI ; READ IT
3280 HLRE C,A ; GET COUNT DONE
3281 HLRE D,1(AB) ; AND FULL COUNT
3282 SUB C,D ; C=> TOTAL READ
3284 JUMPGE A,BINIOK ; NOT EOF YET
3287 MOVSI A,TFIX ; RETURN AMOUNT ACTUALLY READ
3290 BUFOU1: SKIPE BUFSTR(B) ; ANY BUFFERS AROUND?
3291 PUSHJ P,BFCLS1 ; GET RID OF SAME
3297 MOVE A,(AB) ; RET VECTOR ETC.
3302 BINEOF: PUSH TP,EOFCND-1(B)
3306 MCALL 1,FCLOSE ; CLOSE THE LOSER
3311 PUSHJ P,OPNCHN ;TRY TO OPEN THE LOSER
3312 JUMPE B,CHNCLS ;FAIL
3315 \f; THESE SUBROUTINES BY NDR 9/16/73 TO FACILITATE THE
3316 ; TYPES OF IO NECESSARY TO MAKE MORE EFFICIENT USE OF
3317 ; THE NETWORK AND DO RELATED FILE TRANSFER TYPE OF JOBS.
3319 R1CHAR: SKIPN A,LSTCH(B) ; CHAR READING ROUTINE FOR FCOPY
3321 TLO A,200000 ; ^@ BUG
3324 JUMPL A,.+2 ; IN CASE OF -1 ON STY
3325 TRZN A,400000 ; EXCL HACKER
3327 MOVEM A,LSTCH(B) ; SAVE DE-EXCLED CHAR
3333 CAIE C,5 ; IF DIRECTION IS 5 LONG THEN READB
3337 AOS ACCESS(B) ; EVERY FIFTY INCREMENT
3341 R1CH1: AOS ACCESS(B)
3345 W1CHAR: CAIE A,15 ; CHAR WRITING ROUTINE, TEST FOR CR
3349 CAIE A,12 ; TEST FOR LF
3350 AOS CHRPOS(B) ; IF NOT LF AOS CHARACTE5R POSITION
3351 CAIE A,14 ; TEST FOR FORM FEED
3353 SETZM CHRPOS(B) ; IF FORM FEED ZERO CHARACTER POSITION
3354 SETZM LINPOS(B) ; AND LINE POSITION
3355 CAIE A,11 ; IS THIS A TAB?
3360 IMULI C,8. ; FIX UP CHAR POS FOR TAB
3361 MOVEM C,CHRPOS(B) ; AND SAVE
3363 HRRZ C,-2(B) ; GET BITS
3364 TRNN C,C.BIN ; SIX LONG MUST BE PRINTB
3372 W1CH1: AOS ACCESS(B)
3379 R1C: SUBM M,(P) ;LITTLE ENTRY FOR COMPILED STUFF
3380 ; PUSH TP,$TCHAN ;SAVE THE CHANNEL TO BLESS IT
3382 ; MOVEI B,DIRECT-1(B)
3385 ; CAME B,[ASCIZ /READ/]
3386 ; CAMN B,[ASCII /READB/]
3389 HRRZ A,-2(B) ; GET MODE BITS
3392 SKIPN IOINS(B) ; IS THE CHANNEL OPEN
3393 PUSHJ P,OPENIT ; NO, GO DO IT
3394 PUSHJ P,GRB ; MAKE SURE WE HAVE A READ BUFFER
3395 PUSHJ P,R1CHAR ; AND GET HIM A CHARACTER
3396 JRST MPOPJ ; THATS ALL FOLKS
3405 PUSH P,A ; ASSEMBLER ENTRY TO OUTPUT 1 CHAR
3406 ; MOVEI B,DIRECT-1(B)
3407 ; PUSHJ P,CHRWRD ; INTERNAL CALL TO W1CHAR
3409 ; CAME B,[ASCII /PRINT/]
3410 ; CAMN B,[<ASCII /PRINT/>+1]
3418 SKIPN IOINS(B) ; MAKE SURE THAT IT IS OPEN
3421 POP P,A ; GET THE CHAR TO DO
3424 ; ROUTINES TO REPLACE XCT IOINS(B) FOR INPUT AND OUTPUT
3425 ; THEY DO THE XCT THEN CHECK OUT POSSIBLE SCRIPTAGE--BLECH.
3429 RXCT: XCT IOINS(B) ; READ IT
3433 DOSCPT: PUSH TP,$TCHAN
3435 PUSH P,A ; AND SAVE THE CHAR AROUND
3437 SKIPN SCRPTO(B) ; IF ZERO FORGET IT
3438 JRST SCPTDN ; THATS ALL THERE IS TO IT
3439 PUSH P,C ; SAVE AN ACCUMULATOR FOR CLEANLINESS
3440 GETYP C,SCRPTO-1(B) ; IS IT A LIST
3444 PUSH TP,[0] ; SAVE A SLOT FOR THE LIST
3445 MOVE C,SCRPTO(B) ; GET THE LIST OF SCRIPT CHANNELS
3446 SCPT1: GETYP B,(C) ; GET THE TYPE OF THIS SCRIPT CHAN
3448 JRST BADCHN ; IF IT ISN'T A CHANNEL, COMPLAIN
3449 HRRZ B,(C) ; GET THE REST OF THE LIST IN B
3450 MOVEM B,(TP) ; AND STORE ON STACK
3451 MOVE B,1(C) ; GET THE CHANNEL IN B
3452 MOVE A,-1(P) ; AND THE CHARACTER IN A
3453 PUSHJ P,W1CI ; GO TO INTERNAL W1C, IT BLESSES GOODIES
3454 SKIPE C,(TP) ; GET THE REST OF LIST OF CHANS
3455 JRST SCPT1 ; AND CYCLE THROUGH
3456 SUB TP,[2,,2] ; CLEAN OFF THE LIST OF CHANS
3457 POP P,C ; AND RESTORE ACCUMULATOR C
3458 SCPTDN: POP P,A ; RESTORE THE CHARACTER
3459 POP TP,B ; AND THE ORIGINAL CHANNEL
3461 POPJ P, ; AND THATS ALL
3464 ; SUBROUTINE TO COPY FROM INCHAN TO OUTCHAN UNTIL EOF HIT
3465 ; ON THE INPUT CHANNEL
3466 ; CALL IS <FILECOPY IN OUT> WHERE DEFAULTS ARE INCHAN AND OUTCHAN
3468 MFUNCTION FCOPY,SUBR,[FILECOPY]
3473 JRST WNA ; TAKES FROM 0 TO 2 ARGS
3475 JUMPE 0,.+4 ; NO FIRST ARG?
3477 PUSH TP,1(AB) ; SAVE IN CHAN
3480 MOVE B,IMQUOTE INCHAN
3484 HLRE 0,AB ; CHECK FOR SECOND ARG
3485 CAML 0,[-2] ; WAS THERE MORE THAN ONE ARG?
3487 PUSH TP,2(AB) ; SAVE SECOND ARG
3490 MOVE A,$TATOM ; LOOK UP OUTCHAN AS DEFAULT
3491 MOVE B,IMQUOTE OUTCHAN
3494 PUSH TP,B ; AND SAVE IT
3497 MOVE B,-2(TP) ; INPUT CHANNEL
3498 MOVEI 0,C.READ ; INDICATE INPUT
3499 PUSHJ P,CHKCHN ; CHECK FOR GOOD CHANNEL
3501 MOVE B,(TP) ; GET OUT CHAN
3502 MOVEI 0,C.PRIN ; INDICATE OUT CHAN
3503 PUSHJ P,CHKCHN ; CHECK FOR GOOD OUT CHAN
3505 PUSH P,[0] ; COUNT OF CHARS OUTPUT
3508 PUSHJ P,GRB ; MAKE SURE WE HAVE READ BUFF
3510 PUSHJ P,GWB ; MAKE SURE WE HAVE WRITE BUFF
3514 PUSHJ P,R1CHAR ; GET A CHAR
3515 JUMPL A,FCDON ; IF A NEG NUMBER WE GOT EOF
3516 MOVE B,(TP) ; GET OUT CHAN
3517 PUSHJ P,W1CHAR ; SPIT IT OUT
3518 AOS (P) ; INCREMENT COUNT
3521 FCDON: SUB TP,[2,,2] ; POP OFF OUTCHAN
3522 MCALL 1,FCLOSE ; CLOSE INCHAN
3524 POP P,B ; GET CHAR COUNT TO RETURN
3527 CHKCHN: PUSH P,0 ; CHECK FOR GOOD TASTING CHANNEL
3532 JRST CHKBDC ; GO COMPLAIN IN RIGHT WAY
3533 ; MOVEI B,DIRECT-1(B)
3536 ; MOVE C,(P) ; GET CHAN DIRECT
3537 HRRZ C,-2(B) ; MODE BITS
3542 ; ADDI C,2 ; TEST FOR READB OR PRINTB ALSO
3543 ; CAME B,CHKT(C) ; TEST FOR CORRECT DIRECT
3546 SKIPN IOINS(B) ; MAKE SURE IT IS OPEN
3547 PUSHJ P,OPENIT ; IF ZERO IOINS GO OPEN IT
3549 POP P, ; CLEAN UP STACKS
3561 CAMLE 0,D ; SEE IF THIS WAS HIS ARG OF DEFAULT
3566 \f; FUNCTIONS READSTRING AND PRINTSTRING WORK LIKE READB AND PRINTB,
3567 ; THAT IS THEY READ INTO AND OUT OF STRINGS. IN ADDITION BOTH ACCEPT
3568 ; AN ADDITIONAL ARGUMENT WHICH IS THE NUMBER OF CHARS TO READ OR PRINT, IF
3569 ; IT IS DESIRED FOR THIS TO BE DIFFERENT THAN THE LENGTH OF THE STRING.
3571 ; FORMAT IS <READSTRING .STRING .INCHANNEL .EOFCOND .MAXCHARS>
3572 ; AND BOTH SUBRS RETURN THE NUMBER OF CHARS READ OR WRITTEN
3574 ; FORMAT FOR PRINTSTRING IS <PRINTSTRING .STRING .OUTCHANNEL .MAXCHARS>
3576 ; THESE WERE CODED 9/16/73 BY NEAL D. RYAN
3578 MFUNCTION RSTRNG,SUBR,READSTRING
3581 PUSH P,[0] ; FLAG TO INDICATE READING
3585 JRST WNA ; CHECK THAT IT HAS FROM 1 TO 4 ARGS
3588 MFUNCTION PSTRNG,SUBR,PRINTSTRING
3591 PUSH P,[1] ; FLAG TO INDICATE WRITING
3595 JRST WNA ; CHECK THAT IT HAS FROM 1 TO 3 ARGS
3597 STRIO1: PUSH TP,[0] ; SAVE SLOT ON STACK
3600 CAIE 0,TCHSTR ; MAKE SURE WE GOT STRING
3602 HRRZ 0,(AB) ; CHECK FOR EMPTY STRING
3606 CAML 0,[-2] ; WAS A CHANNEL GIVEN
3609 SKIPN (P) ; SKIP IF PRINT
3611 CAIN 0,TTP ; SEE IF FLATSIZE HACK
3613 TESTIN: CAIE 0,TCHAN
3614 JRST WTYP2 ; SECOND ARG NOT CHANNEL
3617 MOVNI E,1 ; CHECKING FOR GOOD DIRECTION
3618 TRNE B,C.READ ; SKIP IF NOT READ
3620 TRNE B,C.PRIN ; SKIP IF NOT PRINT
3623 JRST WRONGD ; MAKE SURE CHANNEL IS OPEN IN RIGHT MODE
3624 STRIO9: PUSH TP,2(AB)
3625 PUSH TP,3(AB) ; PUSH ON CHANNEL
3627 STRIO2: MOVE B,IMQUOTE INCHAN
3630 MOVE B,IMQUOTE OUTCHAN
3633 SKIPN (P) ; SKIP IF PRINTSTRING
3635 CAIN 0,TTP ; SKIP IF NOT FLATSIZE HACK
3637 TESTI2: CAIE 0,TCHAN
3638 JRST BADCHN ; MAKE SURE WE GOT A GOOD DEFAULT CHANNEL
3641 STRIO3: MOVE B,(TP) ; GET CHANNEL
3643 PUSHJ P,OPENIT ; IF NOT GO OPEN
3645 CAMN E,[JRST CHNCLS]
3646 JRST CHNCLS ; CHECK TO SEE THAT CHANNEL ISNT ALREADY CLOSED
3649 JRST STRIO5 ; NO COUNT TO WORRY ABOUT
3654 CAIN 0,TFIX ; BETTER BE A FIXED NUMBER
3657 HRRZ D,(AB) ; GET ACTUAL STRING LENGTH
3660 SKIPE (P) ; TEST FOR WRITING
3661 JRST .-7 ; IF WRITING WE GOT TROUBLE
3662 PUSH P,D ; ACTUAL STRING LENGTH
3663 MOVEM E,(TB) ; STUFF HIS FUNNY DELIM STRING
3666 CAML D,C ; MAKE SURE THE STRING IS LONG ENOUGH
3668 ERRUUO EQUOTE COUNT-GREATER-THAN-STRING-SIZE
3669 PUSH P,C ; PUSH ON MAX COUNT
3672 STRIO6: HRRZ C,(AB) ; GET CHAR COUNT
3673 PUSH P,C ; AND PUSH IT ON STACK AS NO MAX COUNT GIVEN
3677 MOVE B,(TP) ; GET THE CHANNEL
3679 MOVEM 0,EOFCND-1(B) ; STUFF IN SLOT IN CHAN
3682 PUSH TP,(AB) ; PUSH ON STRING
3684 PUSH P,[0] ; PUSH ON CURRENT COUNT OF CHARS DONE
3685 MOVE 0,-2(P) ; GET READ OR WRITE FLAG
3686 JUMPN 0,OUTLOP ; GO WRITE STUFF
3688 MOVE B,-2(TP) ; GET CHANNEL
3689 PUSHJ P,GRB ; MAKE SURE WE HAVE BUFF
3690 SKIPGE A,LSTCH(B) ; CHECK FOR EOF ALREADY READ PREVIOUSLY
3691 JRST SRDOEF ; GO DOES HIS EOF HACKING
3693 MOVE B,-2(TP) ; GET CHANNEL
3694 MOVE C,-1(P) ; MAX COUNT
3695 CAMG C,(P) ; COMPARE WITH COUNT DONE
3696 JRST STREOF ; WE HAVE FINISHED
3697 PUSHJ P,R1CHAR ; GET A CHAR
3698 JUMPL A,INEOF ; EOF HIT
3700 HRRZ E,(TB) ; DO WE HAVE A STRING TO WORRY US?
3701 SOJL E,INLNT ; GO FINISH STUFFING
3706 INLNT: IDPB A,(TP) ; STUFF IN STRING
3707 SOS -1(TP) ; DECREMENT STRING COUNT
3708 AOS (P) ; INCREMENT CHAR COUNT
3711 INEOF: SKIPE C,LSTCH(B) ; IS THIS AN ! AND IS THERE A CHAR THERE
3713 MOVEM A,LSTCH(B) ; NO SAVE THE CHAR
3719 HRRZ C,DIRECT-1(B) ; GET THE TYPE OF CHAN
3720 CAIN C,5 ; IS IT READB?
3722 SOS ACCESS(B) ; FIX UP ACCESS FOR READ CHANNEL
3723 JRST STREOF ; AND THATS IT
3724 HRRZ C,ACCESS-1(B) ; FOR A READB ITS WORSE
3727 HRRM D,ACCESS-1(B) ; CHANGE A 0 TO A FIVE
3730 SOS ACCESS(B) ; AND SOS THE WORD COUNT MAYBE
3733 SRDOEF: SETZM LSTCH(B) ; IN CASE OF -1, FLUSH IT
3734 AOJE A,INLOP ; SKIP OVER -1 ON PTY'S
3736 SUB P,[3,,3] ; POP JUNK OFF STACKS
3738 PUSH TP,EOFCND(B) ; WHAT WE NEED TO EVAL
3741 MCALL 1,FCLOSE ; CLOSE THE LOOSING CHANNEL
3742 MCALL 1,EVAL ; EVAL HIS EOF JUNK
3745 OUTLOP: MOVE B,-2(TP)
3747 MOVE A,-3(TP) ; GET CHANNEL
3749 MOVE C,-1(P) ; MAX COUNT TO DO
3750 CAMG C,(P) ; HAVE WE DONE ENOUGH
3752 ILDB D,(TP) ; GET THE CHAR
3753 SOS -1(TP) ; SUBTRACT FROM STRING LENGTH
3754 AOS (P) ; INC COUNT OF CHARS DONE
3755 PUSHJ P,CPCH1 ; GO STUFF CHAR
3758 STREOF: MOVE A,$TFIX
3759 POP P,B ; RETURN THE LOOSER A COUNT OF WHAT WAS DONE
3765 GWB: SKIPE BUFSTR(B)
3768 PUSH TP,B ; GET US A WRITE BUFFER ON PRINTB CHAN
3771 MOVSI A,TWORD+.VECT.
3783 MOVE C,[TCHSTR,,BUFLNT*5]
3789 GRB: SKIPE BUFSTR(B)
3792 PUSH TP,B ; GET US A READ BUFFER
3806 MTSTRN: ERRUUO EQUOTE EMPTY-STRING
3808 \f; INPUT UNBUFFERING ROUTINE. THIS DOES THE CHARACTER UNBUFFERING
3809 ; FOR INPUT. THE OPEN ROUTINE SETUPS A PUSHJ P, TO
3810 ; THIS ROUTINE AS THE IOINS FOR A CHANNEL OPEN TO A NON-TTY DEVICE.
3816 ; B/ AOBJN PNTR TO CHANNEL VECTOR
3817 ; RETURNS NEXT CHARACTER IN AC A.
3818 ; ON ENCOUNTERING EITHER ^C OR NUL(^@) IT ASSUMES EOF AND
3819 ; TRANSMITS ONLY ^C ON SUCCESSIVE CALLS
3823 ; FIRST GRAB THE BUFFER
3824 ; GETYP A,BUFSTR-1(B) ; GET TYPE WORD
3825 ; CAIN A,TCHSTR ; SKIPS IF NOT CHSTR (I.E. IF BAD BUFFER)
3826 ; JRST GTGBUF ; IS GOOD BUFFER...SKIP ERROR RETURN
3827 GTGBUF: HRRZ A,BUFSTR-1(B) ; GET LENGTH OF STRING
3828 SOJGE A,GTGCHR ; JUMP IF STILL MORE
3830 ; HERE IF THE BUFFER WAS EXHAUSTED (BYTE PNTR POINTS INTO DOPE WDS)
3831 ; GENERATE AN .IOT POINTER
3832 ;FIRST SAVE C AND D AS I WILL CLOBBER THEM
3836 LDB C,[600,,STATUS(B)] ; GET TYPE
3837 CAIG C,2 ; SKIP IF NOT TTY
3842 JRST GETTTY ; GET A TTY BUFFER
3844 PUSHJ P,PGBUFI ; RE-FILL BUFFER
3847 JUMPGE A,BUFGOO ;SKIPS IF IOT COMPLETED...FIX UP CHANNEL
3848 MOVEI C,1 ; MAKE SURE LAST EOF REALLY ENDS IT
3850 MOVSI C,014000 ; GET A ^C
3851 MOVEM C,(A) ;FAKE AN EOF
3854 HLRE C,A ; HOW MUCH LEFT
3855 ADDI C,BUFLNT ; # OF WORDS TO C
3856 IMULI C,5 ; TO CHARS
3857 MOVE A,-2(B) ; GET BITS
3858 TRNE A,C.BIN ; CAN'T HELP A BINARY CHANNEL
3867 MOVE B,[2,,11] ; READ WORD CONTAINING BYTE SIZE
3869 LDB D,[300600,,-1(P)] ; GET BYTE SIZE
3873 CAIE D,7 ; SEVEN BIT BYTES?
3874 JRST BUFGO1 ; NO, DONT HACK
3876 IDIVI B,5 ; C IS NUMBER IN LAST WORD IF NOT EVEN
3879 ADDI C,-5(D) ; FIXUP C FOR WINNAGE
3883 ; RESET THE BYTE POINTER IN THE CHANNEL.
3884 ; BUILD ONE USING THE PTR TO BEG OF BUFFER SAVED IN D
3885 BUFGOO: HRLI D,010700 ; GENERATE VIRGIN LH
3888 MOVEM D,BUFSTR(B) ; STASH IN THE BUFFER BYTE PNTR SLOT
3889 IFE ITS, HRRM C,LSTCH-1(B) ; SAVE IT
3891 BUFROK: POP P,D ;RESTORE D
3895 ; HERE IF THERE ARE CHARS IN BUFFER
3896 GTGCHR: HRRM A,BUFSTR-1(B)
3897 ILDB A,BUFSTR(B) ; GET A CHAR FROM BUFFER
3901 POPJ P, ; AND RETURN
3902 LDB A,[600,,STATUS(B)] ; CHECK FOR TTY
3903 CAILE A,2 ; SKIP IF TTY
3921 HRRZ A,BUFSTR(B) ; SEE IF RSUBR START BIT IS ON
3932 PGBUFO: SKIPA D,[SOUT]
3933 PGBUFI: MOVE D,[SIN]
3935 SKIPGE A,BUFSTR(B) ; POINT TO CURRENT BUFFER POSIT
3936 SUBI A,1 ; FOR 440700 AND 010700 START
3937 SUBI A,BUFLNT-1 ; CALCULATE PNTR TO BEG OF BUFFER
3938 HRLI A,-BUFLNT ; IOT (AOBJN) PNTR IN A
3941 PGBIOI: MOVE D,A ; COPY FOR LATER
3942 MOVSI C,TUVEC ; PREPARE TO HANDDLE INTS
3950 MOVE C,CHANNO(B) ; CHANNEL NUMBER IN C
3951 ROT C,23. ; MOVE INTO AC FIELD
3952 IOR C,[.IOT 0,A] ; IOR IN SKELETON .IOT
3956 XCT C ; EXECUTE THE .IOT INSTR
3969 MOVEI C,-1(A) ; POINT TO BUFFER
3971 HLRE D,A ; XTRA POINTER
3976 MOVE D,[PUSHJ P,FIXACS]
3981 MOVE A,CHANNO(B) ; FILE JFN
3983 HLRE C,D ; - COUNT TO C
3985 XCT (P) ; DO IT TO IT
3995 JUMPGE C,CPOPJ ; NO EOF YET
3996 HRLI A,(C) ; LOOK LIKE AN AOBJN PNTR
4007 PGBIOO: SKIPA D,[SOUT]
4008 PGBIOI: MOVE D,[SIN]
4022 ; OUTPUT BUFFERING ROUTINES SIMILAR TO INPUT BUFFERING ROUTINES OF PREV PAGE
4025 GETYP A,BUFSTR-1(B) ; CHECK TYPE OF ARG
4026 CAIE A,TCHSTR ; MUST BE STRING
4029 HRRZ A,BUFSTR-1(B) ; GET CHAR COUNT
4030 JUMPE A,REBUFF ; PREV RESET BUFF, UNDO SAME
4032 PUTCH1: POP P,A ; RESTORE CHAR
4033 CAMN A,[-1] ; SPECIAL HACK?
4034 JRST PUTCH2 ; YES GO HANDLE
4035 IDPB A,BUFSTR(B) ; STUFF IT
4036 PUTCH3: SOS A,BUFSTR-1(B) ; COUNT DOWN STRING
4037 TRNE A,-1 ; SKIP IF FULL
4040 ; HERE TO FLUSH OUT A BUFFER
4044 PUSHJ P,PGBUFO ; SETUP AND DO IOT
4045 HRLI D,010700 ; POINT INTO BUFFER
4047 MOVEM D,BUFSTR(B) ; STORE IT
4048 MOVEI A,BUFLNT*5 ; RESET COUNT
4054 ;HERE TO DA ^C AND TURN ON MAGIC BIT
4057 IDPB A,BUFSTR(B) ; ZAP OUT THE ^C
4066 IORM A,@BUFSTR(B) ; ON GOES THE BIT
4072 REBUFF: MOVEI A,BUFLNT*5 ; 1ST COUNT
4074 HRRZ A,BUFSTR(B) ; NOW POINTER
4077 MOVEM A,BUFSTR(B) ; STORE BACK
4081 ; HERE TO FLUSH FINAL BUFFER
4083 BFCLOS: HRRZ C,-2(B) ; THIS BUFFER FLUSHER THE WORK OF NDR
4089 PUSH P,A ; SAVE THE RESULT OF OUR TEST
4090 JUMPN A,BFCLNN ; DONT HAVE TO CHECK NET STATE
4092 PUSH TP,B ; SAVE CHANNEL
4093 PUSHJ P,INSTAT ; GET CURRENT NETWORK STATE
4094 MOVE A,(B) ; GET FIRST ELEMENT OF STATE UVECTOR WHICH IS CUR STATE
4095 POP TP,B ; RESTORE B
4097 CAIE A,5 ; IS NET IN OPEN STATE?
4098 CAIN A,6 ; OR ELSE IS IT IN RFNM WAIT STATE
4099 JRST BFCLNN ; IF SO TO THE IOT
4100 POP P, ; ELSE FLUSH CRUFT AND DONT IOT
4101 POPJ P, ; RETURN DOING NO IOT
4102 BFCLNN: MOVEI C,BUFLNT*5 ; NEW BUFFER FLUSHER BY NDR
4103 HRRZ D,BUFSTR-1(B) ; SO THAT NET ALSO WORKS RIGHT
4104 SUBI C,(D) ; GET NUMBER OF CHARS
4105 IDIVI C,5 ; NUMBER OF FULL WORDS AND REST
4106 PUSH P,D ; SAVE NUMBER OF ODD CHARS
4107 SKIPGE A,BUFSTR(B) ; GET CURRENT BUF POSITION
4108 SUBI A,1 ; FIX FOR 440700 BYTE POINTER
4114 PUSH P,(A) ; SAVE THE ODD WORD OF BUFFER
4120 ADDI D,1(A) ; FIX UP FOR POSSIBLE ODD CHARS
4122 PUSH TP,D ; PUSH THE DOPE VECTOR ONTO THE STACK
4123 JUMPE C,BFCLSR ; IN CASE THERE ARE NO FULL WORDS TO DO
4126 MOVE E,[SETZ BUFLNT(A)]
4127 SUBI E,(C) ; FIX UP FOR BACKWARDS BLT
4128 POP A,@E ; AMAZING GRACE
4131 HRRO A,D ; SET UP AOBJN POINTER
4134 PUSHJ P,PGBIOO ; DO THE IOT OF ALL THE FULL WORDS
4135 BFCLSR: HRRO A,(TP) ; GET IOT PTR FOR REST OF JUNK
4136 SUBI A,1 ; POINT TO WORD BEFORE DOPE WORDS
4137 POP P,0 ; GET BACK ODD WORD
4138 POP P,C ; GET BACK ODD CHAR COUNT
4139 POP P,D ; FLAG FOR NET OR DSK
4140 JUMPN D,BFCDSK ; GO FINISH OFF DSK
4141 JUMPE C,BFCLSD ; IF NO ODD CHARS FINISH UP
4143 IMULI D,(C) ; FIND NO OF BITS TO SHIFT
4144 LSH 0,-43(D) ; SHIFT BITS TO RIGHT PLACE
4145 MOVEM 0,(A) ; STORE IN STRING
4146 SUBI C,5 ; HOW MANY CHAR POSITIONS TO SKIP
4147 MOVNI C,(C) ; MAKE C POSITIVE
4149 TLC A,(C) ; MUNG THE AOBJN POINTER TO KLUDGE
4150 PUSHJ P,PGBIOO ; DO IOT OF ODD CHARS
4152 BFCLSD: HRRZ A,(TP) ; GET PTR TO DOPE WORD
4156 MOVEM 0,1(A) ; LAST WORD BACK IN BFR
4157 HRLI A,010700 ; AOBJN POINTER TO FIRST OF BUFFER
4168 BFCLSY: MOVE A,CHANNO(B)
4173 HRRZ F,LSTCH-1(C) ; PREVIOUS HIGH
4174 MOVE G,C ; SAVE CHANNEL
4197 DOTCAL RFPNTR,[A,[2000,,B]]
4198 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
4201 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
4204 BFCLSZ: SUB TP,[2,,2]
4212 PUSH P,0 ; WORD OF CHARS
4214 MOVEI B,7 ; MAKE BYTE SIZE 7
4227 DOTCAL SIOT,[CHANNO(B),D,C]
4228 .LOSE %LSFIL ;PRESUMABLY LOSSAGE MATTERS
4232 BFCDS1: MOVNI C,1 ; INDICATE NOT TOHACK BUFFER
4235 BFCLS1: HRRZ C,DIRECT-1(B)
4238 MOVE 0,[AOS ACCESS(B)]
4243 MOVEI A,40 ; PAD WITH SPACES
4245 XCT (P) ; AOS ACCESS IF NECESSARY
4246 SOJG D,.-3 ; TO END OF WORD
\r
4255 ; HERE TO GET A TTY BUFFER
4257 GETTTY: SKIPN C,EXBUFR(B) ; SKIP IF BUFFERS BACKED UP
4259 HRRZ D,(C) ; CDR THE LIST
4260 GETYP A,(C) ; CHECK TYPE
4261 CAIE A,TDEFER ; MUST BE DEFERRED
4263 MOVE C,1(C) ; GET DEFERRED GOODIE
4264 GETYP A,(C) ; BETTER BE CHSTR
4267 MOVE A,(C) ; GET FULL TYPE WORD
4269 MOVEM D,EXBUFR(B) ; STORE CDR'D LIST
4270 MOVEM A,BUFSTR-1(B) ; MAKE CURRENT BUFFER
4275 TTYWAI: PUSHJ P,TTYBLK ; BLOCKED FOR TTY I/O
4276 JRST GETTTY ; SHOULD ONLY RETURN HAPPILY
4278 \f;INTERNAL DEVICE READ ROUTINE.
4280 ;FOR INTERNAL DEVICES THIS ROUTINE APPLIES THE GIVEN OBJECT,
4281 ;CHECKS THAT THE RETURNED VALUE IS OF TYPE CHARACTER,
4282 ;AND RETURNS THAT AS THE NEXT CHARACTER IN THE "FILE"
4286 GTINTC: PUSH TP,$TCHAN ;SAVE THE CHANNEL...WE'LL CLOBBER B
4288 PUSH P,C ;AND SAVE THE OTHER ACS
4299 INTRET: POP P,0 ;RESTORE THE ACS
4303 POP TP,B ;RESTORE THE CHANNEL
4304 SUB TP,[1,,1] ;FLUSH $TCHAN...WE DON'T NEED IT
4308 BADRET: ERRUUO EQUOTE INT-DEVICE-WRONG-TYPE-EVALUATION-RESULT
4310 ;INTERNAL DEVICE PRINT ROUTINE.
4312 ;FOR INTERNAL DEVICES THIS ROUTINE APPLIES THE GIVEN OBJECT,(FUNCTION, SUBR, OR RSUBR)
4313 ;TO THE CURRENT CHARACTER BEING "PRINTED".
4315 PTINTC: PUSH TP,$TCHAN ;SAVE THE CHANNEL...WE'LL CLOBBER B
4317 PUSH P,C ;AND SAVE THE OTHER ACS
4321 PUSH TP,INTFCN-1(B) ;PUSH TYPE OF GIVEN OBJ
4322 PUSH TP,INTFCN(B) ;PUSH THE SUPPLIED FUNCTION (OR SUBR ETC.)
4323 PUSH TP,$TCHRS ;PUSH THE TYPE "CHARACTER"
4324 PUSH TP,A ;PUSH THE CHAR
4325 MCALL 2,APPLY ;APPLY THE FUNCTION TO THE CHAR
4330 ; ROUTINE TO FLUSH OUT A PRINT BUFFER
4332 MFUNCTION BUFOUT,SUBR
4341 ; MOVEI B,DIRECT-1(B)
4342 ; PUSHJ P,CHRWRD ; GET DIR NAME
4344 ; CAMN B,[ASCII /PRINT/]
4346 ; CAME B,[<ASCII /PRINT/>+1]
4348 ; TRNE B,1 ; SKIP IF PRINT
4350 ; TRNN B,1 ; SKIP IF PRINTB
4351 ; PUSH P,[AOS ACCESS(B)]
4355 ; TRNE 0,C.BIN ; SKIP IF PRINT
4357 ; TRNN 0,C.BIN ; SKIP IF PRINTB
4358 ; PUSH P,[AOS ACCESS(B)]
4360 ; GETYP 0,BUFSTR-1(B)
4362 ; SKIPN A,BUFSTR(B) ; BYTE POINTER?
4364 ; HRRZ C,BUFSTR-1(B) ; CHARS LEFT
4365 ; IDIVI C,5 ; MULTIPLE OF 5?
4366 ; JUMPE D,BFIN2 ; YUP NO EXTRAS
4368 ; MOVEI A,40 ; PAD WITH SPACES
4369 ; PUSHJ P,PUTCHR ; OUT IT GOES
4370 ; XCT (P) ; MAYBE BUMP ACCESS
4373 BFIN2: PUSHJ P,BFCLOS ; WRITE OUT BUFFER
4375 BFIN1: MOVSI A,TCHAN
4380 ; FUNCTION TO GET THE FILE LENGTH OF A READ CHANNEL
4382 MFUNCTION FILLNT,SUBR,[FILE-LENGTH]
4394 MOVEI B,DIRECT-1(B) ; GET CHANNEL TYPE
4397 CAME B,[ASCIZ /READ/]
4399 PUSH P,[5] ; MULTIPLICATIVE FACTOR FOR READ
4401 CAME B,[ASCII /READB/]
4403 PUSH P,[1] ; MULTIPLICATIVE FACTOR FOR READ
4405 MOVE C,-2(B) ; GET BITS
4406 MOVEI D,5 ; ASSUME ASCII
4407 TRNE C,C.BIN ; SKIP IF NOT BINARY
4413 JRST FILLOS ; GIVE HIM A NICE FALSE
4419 MOVE B,[1,,11] ; READ WORD CONTAINING BYTE SIZE
4421 LDB D,[300600,,(P)] ; GET BYTE SIZE
4423 MOVEI D,36. ; HANDLE "0" BYTE SIZE
4435 YESASC: MOVE A,$TFIX
4440 IDIV 0,D ; BYTES PER WORD
4448 FILL1: SETZ ; BLOCK FOR .CALL TO FILLEN
4453 FILLOS: MOVE A,CHANNO(C)
4454 MOVE B,[.STATUS A] ;MAKE A CALL TO STATUS TO FIND REASON
4455 LSH A,23. ;SHIFT THE CHANNEL NUMBER INTO RIGHT PLACE
4456 IOR B,A ;FIX UP .STATUS
4471 \f; MCHAN LOW-LEVEL I/O GARBAGE (PDL)-ORIGINAL (LIM)-ADDITIONS
4473 ;CALLING ROUTINE: AC-A contains pointer to block of SIXBIT data
4474 ; DIR ? DEV ? FNM1 ? FNM2 ? SNM
4475 ;RETURNED VALUE : AC-A = <channel #, or -1 if no channel available>
4479 MOVE C,FRSTCH ; skip gc and tty channels
4480 CNLP: DOTCAL STATUS,[C,[2000,,B]]
4483 JUMPE B,CHNFND ; found unused channel ?
4484 ADDI C,1 ; try another channel
4485 CAIG C,17 ; are all the channels used ?
4487 SETO C, ; all channels used so C = -1
4490 HLL B,(A) ; M.DIR slot
4491 DOTCAL OPEN,[B,1(A),2(A),3(A),4(A)]
4493 AOS -2(P) ; successful skip when returning
4499 MIOT: DOTCAL IOT,[A,B]
4503 MCLOSE: DOTCAL CLOSE,[A]
4513 \f;THREE GENERALLY USEFUL ERROR ROUTINES FOR I/O
4516 BADCHN: ERRUUO EQUOTE BAD-CHANNEL
4517 BDCHAN: ERRUUO EQUOTE BAD-INPUT-BUFFER
4519 WRONGD: ERRUUO EQUOTE WRONG-DIRECTION-CHANNEL
4521 CHNCLS: ERRUUO EQUOTE CHANNEL-CLOSED
4523 BAD6: ERRUUO EQUOTE NON-6-BIT-CHARACTER-IN-FILE-NAME
4525 DISLOS: MOVE C,$TCHSTR
4526 MOVE D,CHQUOTE [DISPLAY NOT AVAILABLE]
4531 NOCHAN: ERRUUO EQUOTE ITS-CHANNELS-EXHAUSTED
4533 MODE1: 232020,,202020
4534 MODE2: 232023,,330320