Trailing-Edge
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PDP-10 Archives
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BB-F493Z-DD_1986
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10,7/8cards.mac
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TITLE 8CARDS - PUNCH PDP-8 CARD DECK FROM PAL10 .BIN FILES
; AC'S
F==0
A==1
B==A+1
C==B+1
D==4
E==5
F==6
T==10
T1==T+1
T2==T1+1
X==16
P==17
; IO CHANNELS
INC==1
OUTC==2
LPD==40 ; LENGTH OF PUSH DOWN LIST
DEFINE TELL(A) <
OUTSTR [ASCIZ \A
\]>
DEFINE FAIL(A)<
JRST [TELL <A>
EXIT]>
; PDP-8 INSTRUCTIONS
CDF=6201
CIF=6202
ST: RESET
MOVE P,[-LPD,,PDL-1]
OPEN INC,OPNIN
FAIL <CAN'T INIT DSK FOR INPUT>
LOOKUP INC,LDFIL ; GET LOADER FIRST
FAIL <IN INPUT FILE DSK:CLDR.BIN>
SETZB A,LDFIL+2
HRRM A,LDFIL+1
SETZM LDFIL+3
OPEN OUTC,OPNOUT
FAIL <CAN'T INIT CDP>
ENTER OUTC,OUTFIL
FAIL <CAN'T ENTER FILE CARDS.CDP>
SETZB A,OUTFIL+2
HRRM A,OUTFIL+1
SETZM A,OUTFIL+3
PUSHJ P,OUTOUT ; DAMNED SPOT !
MOVE A,[SIXBIT /PDP8 0/]
MOVEM A,IDENT
MOVE A,[SIXBIT /00 /]
MOVEM A,IDENT+1
; NOW PUT OUT THE LOADER ONTO THE FIRST CARD
MOVSI A,-^D80+LID-1
STLP: PUSHJ P,LGETCH ; FLUSH LEADER OFF LOADER
TRNE T,200 ; IS LEADER ?
JRST STLP ; YES, FORGET IT
TRNN T,100 ; IS ORG ?
FAIL <CLDR.BIN FILE CONFUSING> ; NO, THIS SIMPLE PROGRAM DOESN'T UNDERSTAND
LDLP3: PUSHJ P,LGETCH ; YES, IGNORE IT ALL
; NOW WE HAVE A LOADER READY, PUT IT ON THE FIRST CARD AS IS.
LDLP1: PUSHJ P,LGETCH
TRNE T,100 ; IS ORG ?
JRST LDLP3 ; IGNORE ORGS
TRNE T,200 ; IS TRAILER ?
JRST LDLP2 ; YES, WE'RE DONE
DPB T,[POINT 6,CD(A),29]
PUSHJ P,LGETCH
TRNE T,300 ; ORG OR LEADER OR FIELD
FAIL <CLDR.BIN FILE CONFUSED ! >
DPB T,[POINT 6,CD(A),35]
AOBJN A,LDLP1
FAIL <LOADER DOESN'T FIT ON A CARD>
LDLP2: SUB A,[1,,1] ; UNDO CHECKSUM
LDLP22: SETZM CD(A) ; ZERO OUT REST OF CARD TO ID FIELD
AOBJN A,LDLP22
PUSHJ P,PNCHIT ; PUNCH THE LOADER
; GOT LOADER PUNCHED, NOW CONVERT THE FILE TO BE LOADED
LOOKUP INC,INFIL ; GET THE .BIN FILE
FAIL <CAN'T FIND FILE DSK:PCH.BIN>
SETZM FLDS# ; START IN FIELD 0
SETZM CADDR# ; AT LOCATION 0
SETZM CCHKSM# ; START WITH 0 CHECKSUM
MOVSI A,-MAXDAT ; WORDS PER CARD, LATER SET UP BY PNCHIT
PL1: PUSHJ P,PGETCH ; GET A FRAME
CAIE T,200 ; WAIT FOR LEADER
JRST PL1
PL2: PUSHJ P,PGETCH ; GET ANOTHER FRAME
CAIN T,200 ; IS LEADER ?
JRST PL2 ; YES , IGNORE
; NOW WE HAVE READ DATA - OF SOME KIND
PL3: LDB T1,[POINT 2,T,29] ; GET CHANNELS 7 AND 8 OFF BY THEMSELVES
JRST @[DATA
ORG
TLR
FIELD](T1)
DATA: DPB T,[POINT 6,DAT(A),29] ; LEFT 6 BITS OF DATA
PUSHJ P,PGZ ; GET DATA WITH 0 IN CH 7 & 8
DPB T,[POINT 6,DAT(A),35] ; RIGHT 6 BITS OF DATA
AOS CADDR# ; NEXT ADDRESS
AOBJN A,NXTWD ; NEXT WORD ON CARD
NEWCD: PUSHJ P,PUNCD ; END OF CARD, PUNCH IT IN LOADER FORMAT
NXTWD: PUSHJ P,PGETCH ; GET NEXT CHAR
JRST PL3 ; AND TRY AGAIN
ORG: SETZM B
DPB T,[POINT 6,B,29]
PUSHJ P,PGZ
DPB T,[POINT 6,B,35]
MOVEM B,CADDR#
JRST NEWCD
FIELD: LSH T,-3 ; GET THE FIELD BITS
TRZ T,777770 ; AND NO OTHERS
MOVEM T,FLDS# ; SAVE
JRST NEWCD
; FOUND A TRAILER CODE, WE'RE OUT OF PROGRAM TO LOAD
TLR: SUB A,[1,,1] ; UNDO CHECKSUM
SOS CADDR#
SETZM DAT(A) ; MORE UNDOING OF THAT
; MISERABLE CHECKSUM THAT LOOKS LIKE DATA
PUSHJ P,PUNCD ; FINISH OFF THE LAST CARD
MOVEI T,CIF!CDF ; HAVE TO CHANGE INSTR FIELD ALSO
IORM T,FLD
PUSHJ P,PUNCD1 ; PUNCH OUT START CARD TO CURRENT ADDR
CLOSE INC,
CLOSE OUTC,
EXIT
; SUBROUTINES
PUNCD: CAMG A,[-MAXDAT,,0] ; ANYTHING ON CARD ?
JRST CLP4 ; NO SET UP ADDR AND FIELD AND EXIT
PUNCD1: HRRZ A,A ; SET WORD COUNT
MOVNM A,WC
MOVSI A,-3
MOVE C,CCHKSM#
CLP2: MOVE T1,CD(A)
ANDI T1,7777
ADD C,T1
TRZE C,10000
AOS C
AOBJN A,CLP2
MOVEM C,CCHKSM#
MOVNM C,CD(A)
HRLZ A,WC
JUMPGE A,CLP5
MOVE C,CCHKSM#
CLP1: MOVE T1,DAT(A)
ANDI T1,7777
ADD C,T1
TRZE C,10000
AOS C
AOBJN A,CLP1
MOVEM C,CCHKSM#
MOVNM C,DAT(A)
CLP5: PUSHJ P,PNCHIT
CLP4: MOVEI T1,CDF
MOVEM T1,FLD
MOVE T1,FLDS#
DPB T1,[POINT 3,FLD,32]
MOVE T1,CADDR#
MOVEM T1,ADDR
MOVSI A,-MAXDAT
POPJ P,
PNCHIT: MOVEI D,LID-1 ; NO OF CH IN ID FIELD
IDLP: MOVE T1,D
IDIVI T1,6 ; CH / WD
LDB E,IDTBL(T2) ; PICK UP RIGHT BYTE
MOVE F,E ; SAVE
CAIN E,'9' ; WORRY ABOUT CARRYS
MOVEI E,'0'
CAIN E,'Z'
MOVEI E,'A'
CAIN E,(F) ; DID WE CARRY ?
JRST NOCARY ; NO
DPB E,IDTBL(T2) ; YES PUT BACK NEW CHARACTER
SOJGE D,IDLP ; AND TRY NEXT CH
JRST IDDN ; MOD SIZE OF ID FIELD
NOCARY: AOS E ; ADD 1 TO ID
DPB E,IDTBL(T2) ; AND SAVE IT
IDDN: MOVSI D,-^D80+LID
PLP: LDB T1,[POINT 12,CD(D),35]
PUSHJ P,OUTWD
AOBJN D,PLP
HRLI D,-LID
MOVE E,[POINT 6,IDENT]
PLP1: ILDB T1,E
IDIVI T1,3
LDB T1,SXCT(T2)
PUSHJ P,OUTWD
AOBJN D,PLP1
PUSHJ P,OUTOUT ; THATS ALL
MOVSI A,-^D80
CLP3: SETZM CD(A)
AOBJN A,CLP3
POPJ P,
OUTWD: SOSGE OUTBF+2
FAIL <CARD TOO SMALL>
IDPB T1,OUTBF+1
POPJ P,
OUTOUT: OUT OUTC,
JRST [ MOVE T1,OUTBF+2
IMULI T1,3
MOVEM T1,OUTBF+2
MOVEI T1,001400
HRLM T1,OUTBF+1
POPJ P,
]
GETSTS OUTC,T1
FAIL <OUTPUT ERROR>
GETCH: SOSLE INBUFF+2
JRST GETOK
IN INC,
JRST GETOK
STATO INC,740000
TELL <INPUT EOF BEFORE TRAILER>
TELL <INPUT ERROR>
POPJ P,
GETOK: ILDB T,INBUFF+1
AOS 0(P)
POPJ P,
LGETCH: PUSHJ P,GETCH
FAIL <ON LOADER FILE>
POPJ P,
PGETCH: PUSHJ P,GETCH
FAIL <ON PROGRAM FILE>
POPJ P,
PGZ: PUSHJ P,PGETCH
TRNE T,300
FAIL <FILE OUT OF SYNC>
POPJ P,
; SIXBIT TO BINARY CARD ROW CONVERSION
; CARD CODES:
P9==1
P8==2
P7==4
P6==10
P5==20
P4==40
P3==100
P2==200
P1==400
P0==1000
P11==2000
P12==4000
; POINTER TO FOLLOWING TABLE
SXCT: POINT 12,SXTOBN(T1),11
POINT 12,SXTOBN(T1),23
POINT 12,SXTOBN(T1),35
; ASCII TO 029 TABLE
SXTOBN: BYTE (12)0,P11+P8+P2,P8+P7 ; SPACE ! "
BYTE (12)P8+P3,P11+P8+P3,P0+P8+P4 ; # $ %
BYTE (12)P12,P8+P5,P12+P8+P5 ; & ' (
BYTE (12)P11+P8+P5,P11+P8+P4,P12+P8+P6 ; ) * +
BYTE (12)P0+P8+P3,P11,P12+P8+P3 ; , - .
BYTE (12)P0+P1,P0,P1 ; / 0 1
BYTE (12)P2,P3,P4 ; 2 3 4
BYTE (12)P5,P6,P7 ; 5 6 7
BYTE (12)P8,P9,P8+P2 ; 8 9 :
BYTE (12)P11+P8+P6,P12+P8+P4,P8+P6 ; ; < =
BYTE (12)P0+P8+P6,P12+P8+P4,P8+P6 ; > ? @
BYTE (12)P12+P1,P12+P2,P12+P3 ; A B C
BYTE (12)P12+P4,P12+P5,P12+P6 ; D E F
BYTE (12)P12+P7,P12+P8,P12+P9 ; G H I
BYTE (12)P11+P1,P11+P2,P11+P3 ; J K L
BYTE (12)P11+P4,P11+P5,P11+P6 ; M N O
BYTE (12)P11+P7,P11+P8,P11+P9 ; P Q R
BYTE (12)P0+P2,P0+P3,P0+P4 ; S T U
BYTE (12)P0+P5,P0+P6,P0+P7 ; V W X
BYTE (12)P0+P8,P0+P9,P12+P8+P7 ; Y Z [
BYTE (12)P11+P8+P7,P0+P8+P2,P12+P8+P7 ; \ ] ^
BYTE (12)P0+P8+P5,, ; _
; BYTE POINTERS FOR IDENT
IDTBL: POINT 6,IDENT(T1),5
POINT 6,IDENT(T1),11
POINT 6,IDENT(T1),17
POINT 6,IDENT(T1),23
POINT 6,IDENT(T1),29
POINT 6,IDENT(T1),35
; CARD ID FIELD IN SIXBIT
IDENT: BLOCK 2
; I O STUFF
OPNIN: 10
SIXBIT /DSK/
INBUFF
INBUFF: BLOCK 3
LDFIL: SIXBIT /CLDR/
SIXBIT /BIN/
0
0
INFIL: SIXBIT /PCH/
SIXBIT /BIN/
0
0
OPNOUT: 10
SIXBIT /CDP/
XWD OUTBF,
OUTBF: BLOCK 3
OUTFIL: SIXBIT /CARDS/
SIXBIT /CDP/
0
0
; SIMULATED CARD
LID==^D8 ; LENGTH OF ID FIELD
CD:
WC: 0 ; 2'S COMP OF DATA WORDS ON CARD. 0 IS START CARD
ADDR: 0 ; ADDRESS OF FIRST DATUM ON CARD OR LOCATION TO START AT
FLD: 0 ; PDP-8 INSTRUCTION TO SET PROPER FIELD.
; CDF IF DATA, CDF!CIF IF START
PCSM: 0 ; 2'S COMP OF 1'S COMP CHECKSUM OF ALL PRECEEDING
; PARAMETERS AND DATA
MAXDAT=^D68-1
DAT: BLOCK MAXDAT+1 ; DATA WITH 2'S COMP OF 1'S COMP CHECKSUM OF ALL
; PRECEEDING DATA AND PARAMETERS AT END
IDFLD: BLOCK LID ; IDENTIFICATION FIELD
PAT: BLOCK 100
PDL: BLOCK LPD
END ST