perm filename PK[1,2]11 blob
sn#218262 filedate 1976-06-05 generic text, type C, neo UTF8
COMMENT ⊗ VALID 00006 PAGES
C REC PAGE DESCRIPTION
C00001 00001
C00002 00002 TITLE PK
C00010 00003 DEVNAM←←0
C00016 00004 BUFPNT: MOVE E,DEVCHR(DDB)
C00024 00005 SIXOUT: MOVEI C,6
C00026 00006 CHRTBL
C00032 ENDMK
C⊗;
TITLE PK
A←1
B←2
C←3
D←4
E←5
F←6
G←7
H←10
Z←11
DAT←12
SPACE←13
DDB←14
PTR←15
I←16
P←17
CR←←15 LF←←12 TAB←←11 BS←←177 ALT←←175
APLINE←←12 ;ASSOCIATED PRESS LINE NUMBER
NYLINE←←13 ;NY TIMES LINE NUMBER
PDLLEN←←100
TTYTAB←←220
LINTAB←←302
PTYJOB←←270
JOBNAM←←225
INTTTY←←20000 ;LEFT HALF INTERRUPT BIT FOR TTY INPUT
DEFINE PEEK(AC,ADDR)
< MOVEI AC,ADDR
CALLI AC,33 ;peekuuo
>
LOC 124
REE
RELOC
PDL: BLOCK PDLLEN
LINNBR: -1
CONVRT: -1 ;FLAG: 0 MEANS DON'T CONVERT AP/NYT LINES TO ASCII, -1 MEANS DO CONVERT
APNYTF: 0 ;FLAG: 0 MEANS NOT DOING AP OR NYT LINE OR NOT CONVERTING
; -1 MEANS CONVERTING AP OR NYT.
INTRPT: DISMIS ;SIMPLE INTERRUPT MODULE
JRST FLIP ;START AT SA-1 TO INVERT AP/NYT CONVERSION FLAG
STRT: SETOM CONVRT ;DEFAULT IS CONVERT AP/NYT LINES TO ASCII
START0: SETOM LINNBR ;NEVER DONE INITIALIZATION
RESET
MOVEI A,INTRPT
MOVEM A,JOBAPR↑ ;INTERRUPT MODULE'S ADDRESS
OUTSTR[ASCIZ/TTY #?/]
STRT11: SETZM WHOFLG
PEEK A,221 ;get numbers of: teletypes, IIIs, DDs, PTYs
MOVE B,[POINT 9,A]
SETZM MAXTTY#
ILDB C,B
ADDM C,MAXTTY ;add up total number of TTYs
TLNE B,770000
JRST .-3
movni a,1
setprv a,
tlnn a,1
exit
SETZ A,
INWAIT ;WAIT FOR LINE TO BE TYPED
SNEAKW B,
CAIN B,15
JRST NOTNBR ;IF CRLF, JUST EXIT
INLOP: INCHWL B ;read in TTY number
CAIN B,15
JRST INLOP
CAIL B,"0"
CAILE B,"7"
JRST LAST
IMULI A,10
ADDI A,-60(B)
JRST INLOP
PRVLIN: SOS A,LINNBR ;PREVIOUS TTY
HRRZ A,A ;DON'T LET IT BE NEGATIVE
INCHRW B
CAIN B,ALT
MOVEI B,LF
JRST LAST
NXTLIN: AOS A,LINNBR ;NEXT TTY
INCHRW B ;READ THE LF
LAST: CAMG A,MAXTTY ;LEGAL TTY NUMBER?
CAIE B,12 ;YES, END OF LINE?
JRST [ CLRBFI
OUTSTR[ASCIZ/HO HO!
/]
JRST STRT]
MOVEM A,LINNBR ;SAVE TTY LINE NUMBER
REWHO0: SETZM APNYTF ;ASSUME NOT CONVERTING AP/NYT TO ASCII
SKIPN CONVRT ;WANT TO CONVERT?
JRST REWHO ;NO
CAIE A,APLINE ;IS THIS AP LINE?
CAIN A,NYLINE
SETOM APNYTF ;YES, SET FLAG
REWHO: MOVEM A,TABENT#
MOVEM A,LINENT#
MOVE SPACE,A
TTYJOB SPACE, ;JOB NUMBER OF USER
HRLZI SPACE,(SPACE)
HRRI SPACE,WHOLIN ;SO SPW CAN DO WHO UUO WITH OUR AC SPACE
MOVEM SPACE,SVSPAC#
MOVSI DDB,INTTTY ;INTERRUPT BIT SPW WILL USE TO GENERATE INTERRUPT
HLROM SPACE,WHOFLG# ;FLAG SPW WE ARE READY
SUBI A,121
MOVEM A,PTYENT#
PEEK A,TTYTAB
ADDM A,TABENT ;LOC OF TTYTAB ENTRY FOR TTY OF INTEREST
PEEK A,LINTAB
ADDM A,LINENT ;LOC OF LINTAB ENTRY
PEEK A,PTYJOB
SKIPGE PTYENT ;SKIP IF TTY IS NOT A PTY
JRST REE
ADDM A,PTYENT
PEEK A,JOBNAM
MOVEM A,JOBTAB#
REE: PEEK A,37 ;GET RMEMSIZ-1
HRLZ A,A
JUMPGE A,.+2
HRRI A,540000
SETPR2 A,
HALT STRT
MOVEI A,-400000(A)
MOVNM A,TENADR#
SPCWAR 'SSW'
SETZM YET
SETZM DONE
SETO A,
GETLIN A
CAME A,[-1]
TLNN A,420000
JRST [ SETOM NODPY#
MOVEI A,=67 ;2 less than actual max to allow for control bits
MOVEM A,MAXCOL ;SET MAX LINE LENGTH
SETZM MINCOL ;NO MIN LINE LENGTH ON TTYS
MOVE A,[400000,,SPW] ; WE ARE ON A TELETYPE--DO IT ONLY ONCE
SPCWGO A,
OUTSTR CRLF
OUTSTR WHOLIN
OUTSTR HEADER
OUTSTR TEXT
EXIT]
SETZM NODPY ;NODPY INDICATES KIND OF TTY WE ARE ON:
TLNE A,20000 ; -1 FOR TELETYPES, 0 FOR IIIs, <0,,-1> FOR DDs
HLLOS NODPY
MOVEI A,=82 ;2 less than actual max to allow for control bits
MOVEM A,MAXCOL# ;SET MAX LINE LENGTH
MOVEI A,10
SKIPG NODPY
MOVEI A,7 ;7 FOR IIIs, 8 FOR DDs
MOVEM A,MINCOL# ;SET MIN LINE LENGTH
SKIPE NODPY
JRST [ MOVE A,DDWRD1 ;WE ARE ON A DD--SET UP CMD WORDS
MOVEM A,DPYBUF
MOVE A,DDWRD2
MOVEM A,LINSET
JRST WRDDON]
MOVE A,IIIWRD ;WE ARE ON A III--SET UP POSITION WORD
MOVEM A,LINSET
WRDDON: MOVE A,[400017,,SPW]
SPCWGO A, ;START SPACEWAR ON PDP-10
PPACT 0 ;SHUT OFF PAGE PRINTER
; SKIPE NODPY
; JRST WRDD1
; DPYSIZ 2002
; DPYPOS -600
WRDD1: MOVSI A,INTTTY
INSKIP 1 ;Don't wait if line already typed
IENBW A, ;WAIT AT INTERRUPT LEVEL UNTIL TTY INPUT
SPCWAR 'SSW' ;STOP SPACEWAR PROCESS
SETZM A,
SLEEP A,
SKIPE DONE ;MAKE SURE ALL DD TRANSFERS HAVE FINISHED
JRST .-2
MOVE A,LINNBR ;SET UP LINE NUMBER OF TTY WE ARE PEEKING
SNEAKS ;SKIP IF ANY CHARACTER
JRST REWHO
ANDI 177
CAIL "0"
CAILE "9"
JRST .+2
JRST STRT11 ;HE TYPED ANOTHER TTY NUMBER
CAIN LF
JRST NXTLIN ;PEEK AT NEXT TTY
CAIN ALT
JRST PRVLIN ;PEEK AT PREVIOUS TTY
CAIE CR
JRST READ0 ;DON'T READ LINE--LEAVE IN INPUT BUFFER
NOTNBR: INCHRW ;READ CR
READ1: INCHRW
READ0: PPSEL 0
PGACT 0
EXIT 1,
FLIP1: SKIPL A,LINNBR ;SKIP IF NEVER INITIALIZED
JRST REWHO0
JRST START0
FLIP: SETCMM CONVRT ;INVERT FLAG FOR CONVERSION OF AP/NYT LINES TO ASCII
JRST FLIP1
DEVNAM←←0
DEVCHR←←1
DEVIOS←←2
DEVMOD←←4
DEVLOG←←5
DEVBUF←←6
ACTBTS←←11
TTIBUF←←16
TTOBUF←←25
TISYNC←←24
BUF←←0
PUTR←←1
TAKR←←3
DEFINE INC(N)
< REPEAT N,<IDPB SPACE,PTR
>>
DEFINE PUT(CHR)
< MOVEI A,CHR
IDPB A,PTR
>
SPW: AOSL YET#
SKIPE DONE
DISMIS ;NOT DONE YET
MOVNI A,4
MOVEM A,YET ;DISMISS IMMEDIATELY 3 OUT OF 4 TIMES SPW IS RUN
SETZM LINENO ;NUMBER OF OUTPUT LINES GENERATED FROM BUFFER
MOVE P,[IOWD PDLLEN,PDL];GET STACK
CONSO 120,1B27 ;SKIP IF PDP-6
JRST [ MOVE I,TENADR ;10 IS EASY!
JRST TENWIN]
TLO 2,777000 ;INFINITE PROT.
DATAO 2 ;SET IT
MOVNS I,2 ;GET INDEX
TENWIN: MOVE PTR,[POINT 7,TEXT] ;BYTE POINTER FOR TEXT
MOVEI SPACE,40
MOVE DDB,TABENT ;GET LOC OF TTY'S TTYTAB ENTRY
ADDI DDB,(I) ;UNRELOCATE IT
MOVE DDB,(DDB) ;GET DDB ADDRESS FROM TTYTAB
MOVEI B,1
MOVEM B,WHOLIN
MOVE B,[WHOLIN,,WHOLIN+1]
BLT B,WHOLIN+LWHO-1
JUMPE DDB,NODDB
ADDI DDB,(I) ;ADDRESS OF DDB
MOVE B,DEVNAM(DDB) ;DEVICE NAME
PUSHJ P,SIXOUT
INC 2
MOVE B,DEVLOG(DDB)
PUSHJ P,SIXOUT
INC 2
MOVE B,DEVCHR(DDB)
PUSHJ P,OCTPNT
INC 2
MOVE B,DEVIOS(DDB)
PUSHJ P,OCTPNT
INC 2
MOVE B,DEVMOD(DDB)
PUSHJ P,OCTPNT
INC 2
MOVE B,LINENT ;GET LOC OF TTY'S LINTAB ENTRY
ADDI B,(I)
MOVE B,(B) ;GET LINE CHARACTERISTICS
PUSHJ P,OCTPNT
INC 2
SKIPL TISYNC(DDB)
JRST NOTNEG
PUT "-"
NOTNEG: MOVM A,TISYNC(DDB)
PUSHJ P,OCTNUM
SKIPL PTYENT
JRST DOPTYJ
MOVEI B,[ASCIZ/
/]
; PUSHJ P,STRING
JRST PTDONE
DOPTYJ: MOVEI B,[ASCIZ/
PTYJOB: /]
PUSHJ P,STRING
MOVE B,PTYENT
ADDI B,(I)
MOVE A,(B)
PUSH P,A
PUSHJ P,DECNUM
MOVEI B,[ASCIZ/ /]
PUSHJ P,STRING
POP P,A
ADD A,JOBTAB
ADDI A,(I)
MOVE B,(A)
PUSHJ P,SIXOUT
PTDONE: HLLZ B,DEVCHR(DDB)
LSH B,-=30
TRNN B,77 ;ANY JOB THERE?
JRST NOJOB ;NO
SKIPL A,WHOFLG#
JRST NOJOB
CAIE B,(A) ;RIGHT JOB?
JRST GENINT ;NO, WAKE UP MAIN JOB
MOVE SPACE,SVSPAC
WHO SPACE, ;GET WHOLINE FOR USER OF THIS TTY, IF ANY SUCH JOB
NOJOB: MOVEI B,[ASCIZ/
ACTBITS: /]
PUSHJ P,STRING
MOVE B,ACTBTS(DDB)
PUSHJ P,OCTPNT
INC 2
MOVE B,ACTBTS+1(DDB)
PUSHJ P,OCTPNT
INC 2
MOVE B,ACTBTS+2(DDB)
PUSHJ P,OCTPNT
INC 2
MOVE B,ACTBTS+3(DDB)
PUSHJ P,OCTPNT
; SKIPE FLAG ;DOING INPUT BUFFER OR OUTPUT BUFFER?
; JRST NOTIN ;OUTPUT
MOVEI B,[ASCIZ/
INPUT BUFFER:
/]
PUSHJ P,STRING
MOVEI DAT,TTIBUF(DDB)
PUSHJ P,BUFPNT
; JRST NOTOUT
NOTIN: SKIPGE NODPY ;SKIP UNLESS ON TTY
JRST NOTIN1
SKIPA B,LINENO
PUSHJ P,PSCRLF ;PUT OUT BLANK LINE
CAIGE B,=11
AOJA B,.-2
NOTIN1: MOVEI B,[ASCIZ/
OUTPUT BUFFER:
/]
PUSHJ P,STRING
MOVEI DAT,TTOBUF(DDB)
PUSHJ P,BUFPNT
NOTOUT: SKIPG NODPY ;PUT OUT BLANK LINES IF DD OUTPUT
JRST NOTOU1
MOVEI A,=40-=11 ;NUMBER OF LINES ON DD SCREEN-NBR USED FOR TITLES
SUB A,LINENO ;CALC NUMBER OF BLANK LINES NEEDED
PUSHJ P,PSCRLF ;PUT OUT BLANK LINE WITH ONLY A SPACE ON IT
SOJG A,.-1
NOTOU1: JRST 2,@[.+1]
MOVEI A,2(PTR)
SUBI A,DPYBUF ;CALC WORD COUNT
MOVEM A,HEAD+1
MOVEI A,1
IORM A,@LASTCLOBBERED#
SETZM 1(PTR)
MOVEI A,1(PTR)
MOVEM A,LASTCLOBBERED
SKIPL NODPY
DPYOUT HEAD
DISMIS
NODDB: MOVE B,LINNBR ;PRINT LINE NUMBER
PUSHJ P,OCTPNT
MOVEI A,=46
IDPB SPACE,PTR
SOJG A,.-1
MOVE B,LINENT ;GET LOC OF TTY'S LINTAB ENTRY
ADDI B,(I)
MOVE B,(B) ;GET LINE CHARACTERISTICS
PUSHJ P,OCTPNT
MOVEI B,[ASCIZ/
****** NO DDB POINTER ******
/]
PUSHJ P,STRING
JRST NOTOUT
GENINT: SETZM WHOFLG
JRST 2,@[.+1]
INTIPI [0↔INTTTY,,0] ;SEND OUR MAIN JOB AN INTERRUPT
JRST NOJOB ;ERROR RETURN
JRST NOJOB
BUFPNT: MOVE E,DEVCHR(DDB)
ANDI E,3777 ;GET BUFFER SIZE
ADD E,BUF(DAT)
ADDI E,(I)
HRRZM E,STOPR# ;ADDRESS OF END OF BUFFER
MOVE F,PUTR(DAT)
ADDI F,(I)
TLZ F,1
MOVEM F,SPUTR# ;PUTR
MOVE A,TAKR(DAT)
ADDI A,(I)
TLZ A,1
MOVEM A,STAKR# ;TAKR
MOVEI C,13 ;SYMBOL FOR CONTROL BIT
MOVEI D,14 ;SYMBOL FOR META BIT
MOVEI G,177
SETZB H,SPECIAL# ;H IS COLUMN POSITION, SPECIAL IS A FLAG FOR CR/LF
SKIPL NODPY ;ON TTY?
JRST TLOP
MOVEI C,"$" ;YES, USE DIFFERENT SYMBOLS FOR CONTROL AND META
MOVEI D,"%"
TLOP: IBP F
HRRZ A,F
CAML A,STOPR ;HAVE WE RUN OFF END OF BUFFER?
JRST [ HRR F,BUF(DAT) ;YES--MOVE BACK TO FRONT OF BUFFER
ADDI F,1(I)
TLZ F,1
HRRZ A,SPUTR
CAIL A,(F) ;PUTR AT FRONT?
JRST .+1
MOVE F,SPUTR ;FORCE MATCH TO BEGINNING
JRST NODD] ;NOW GO CHECK FOR TAKR
LDB A,F ;GET A CHAR
JUMPE A,NODD ;IGNORE NULLS
SKIPE B,APNYTF# ;ARE WE CONVERTING AP/NYT LINES TO ASCII?
JRST APNYT ;YES, DO IT
APNYTR: MOVE B,A ;COPY CHARACTER
ANDI B,177 ; WITHOUT CONTROL BITS
CAML H,MAXCOL# ;LINE TOO LONG?
PUSHJ P,PCRLF ;YES--PUT OUT CRLF
SKIPGE NODPY ;SKIP UNLESS TTY
JRST TTYSPE
CAIE B,LF
CAIN B,CR
JRST [ SETOM SPECIAL ;got a cr or a lf
PUSHJ P,CTRLBT ;PUT OUT CONTROL AND META BITS IF ON
SKIPG NODPY ;SKIP IF DD
JRST IIISPE
JRST DDSPE]
SKIPL SPECIAL# ;WAS LAST CHAR A CR OR LF?
JRST NOTSPE ;NO
CAML H,MINCOL# ;YES--TOO LITTLE ON THIS LINE?
PUSHJ P,PCRLF ;NO--PUT OUT CRLF
SETZM SPECIAL
NOTSPE: PUSHJ P,CTRLBT ;PUT OUT CONTROL AND META BITS IF ON
SKIPG NODPY ;SKIP IF DD
JRST IIISP1
CAIE B,TAB
CAIN B,BS
DDSPE: IDPB G,PTR ;PUT OUT A 177
DDSPE1: IDPB B,PTR ;PUT OUT CHAR FROM BUFFER
AOJA H,NODD
IIISPE: CAIN B,CR
MOVEI B,"|" ;CR BECOMES VERTICAL BAR
CAIN B,LF
MOVEI B,"↓" ;LF BECOMES DOWN ARROW
JRST DDSPE1
IIISP1: CAIN B,TAB
MOVEI B,"/" ;TAB BECOMES SLASH
JRST DDSPE1
TTYSPE: PUSHJ P,CTRLBT ;PRINT CONTROL BITS IF PRESENT
CAIE B,LF
ADDI H,1 ;MOVE OVER ONE COLUMN UNLESS LF OR CR
CAIN B,CR
SETZ H, ;BACK AT LEFT MARGIN IF CR
JUMPE B,NODD ;NO NULLS IF ON TTY
IDPB B,PTR
NODD: CAME F,STAKR
JRST NOTAKR
SKIPL NODPY
JRST TAKR1 ;DD OR III
CAIN B,15 ;HERE FOR TTYS ONLY
JRST [ MOVEI B,12 ;DONT SPLIT UP A CR AND A LF--PUT THE LF BACK IN
IDPB B,PTR
JRST .+1]
TAKR1: ADDI H,=12 ;COUNT CHARS IN FOLLOWING STRING
CAMGE H,MAXCOL ;LINE TOO LONG?
JRST TAKR2
PUSHJ P,PCRLF
ADDI H,=12 ;COUNT CHARS ON NEW LINE
TAKR2: MOVEI B,[ASCIZ/*** TAKR →→→/]
PUSHJ P,STRING
SETZM SPECIAL ;NOTE THAT WE HAVEN'T JUST SEEN A CR OR LF
NOTAKR: CAME F,SPUTR
JRST TLOP
POPJ P,
PSCRLF: MOVEI Z," " ;INSERT A SPACE AND A CRLF
IDPB Z,PTR
PCRLF: MOVEI Z,CR ;INSERT CRLF
IDPB Z,PTR
MOVEI Z,12
IDPB Z,PTR
SETZ H, ;NOTE BEGINNING NEW LINE
AOS LINENO#
POPJ P,
CTRLBT: TRZE A,200 ;CONTROL BIT ON?
JRST [IDPB C,PTR↔AOJA H,.+1] ;YES
TRZE A,400 ;META BIT ON?
JRST [IDPB D,PTR↔AOJA H,.+1] ;YES
POPJ P,
APNYT: CAILE A,100
SKIPA A,["?"] ;ILLEGAL CHAR
MOVE A,CHRTBL(A) ;CONVERT CHARACTER TO ASCII
JRST APNYTR
SIXOUT: MOVEI C,6
SIX1: SETZ A,
LSHC A,6
ADDI A,40
IDPB A,PTR
SOJG C,SIX1
CPOPJ: POPJ P,
OCTPNT: MOVEI C,=12
OCT1: SETZ A,
LSHC A,3
ADDI A,60
IDPB A,PTR
SOJG C,OCT1
POPJ P,
OCTNUM: IDIVI A,10
HRLM B,(P)
JUMPE A,.+2
PUSHJ P,OCTNUM
HLRZ A,(P)
ADDI A,60
IDPB A,PTR
POPJ P,
DECNUM: IDIVI A,=10
HRLM B,(P)
JUMPE A,.+2
PUSHJ P,DECNUM
HLRZ A,(P)
ADDI A,60
IDPB A,PTR
POPJ P,
STRING: HRLI B,(<POINT 7,0>)
ST1: ILDB A,B
JUMPE A,CPOPJ
IDPB A,PTR
JRST ST1
DEFINE CW(C1,B1,C2,B2,C3,B3)
{ <BYTE(8)<B1>,<B2>,<B3>(3)<C1>,<C2>,<C3>>!4 }
DDWRD1: CW 1,46,2,0,3,1
DDWRD2: CW 3,1,4,1,5,10
IIIWRD: BYTE(11)<-1000>,670(3)0,0(2)1,2(4)6
HEAD: 600000,,DPYBUF
0
DONE: 0
LINSET
LWHO←←=22
DPYBUF: 0
LINSET: 0
CRLF: ASCID/
/
WHOLIN: REPEAT LWHO,<1>
HEADER: ASCID/DEVNAM DEVLOG DEVCHR DEVIOS DEVMOD LINTAB TISYNC
/
1
TEXT: REPEAT 600,<1>
BUFEND: 1
0
;CHRTBL
CHRTBL: "!" ;0: null
"e" ;1
LF ;2: elevate→line feed
"a" ;3
" " ;4: space
"s" ;5
"i" ;6
"u" ;7
CR ;10: carriage return
"d" ;11
"r" ;12
"j" ;13
"n" ;14
"f" ;15
"c" ;16
"k" ;17
"t" ;20
"z" ;21
"l" ;22
"w" ;23
"h" ;24
"y" ;25
"p" ;26
"q" ;27
"o" ;30
"b" ;31
"g" ;32
"{" ;33: shift
"m" ;34
"x" ;35
"v" ;36
"}" ;37: unshift
"β" ;40: thin space
"3" ;41
"←" ;42: paper feed
"$" ;43
"α" ;44: add thin space
TAB ;45: em space
"8" ;46
"7" ;47
"'" ;50
"-" ;51
"4" ;52
"π" ;53: bell
"," ;54: comma
"∀" ;55: undefined
"→" ;56: en space
"↔" ;57: quad right
"5" ;60
")" ;61
"⊗" ;62: em space
"2" ;63
"∞" ;64: em leader
"6" ;65
"0" ;66
"∂" ;67: en leader
"9" ;70
"∧" ;71: upper rail
";" ;72
"∨" ;73: lower rail
"." ;74: period
"1" ;75
"∃" ;76: undefined
BS ;77: rub out
"@" ;100: tape feed
END STRT