--- /dev/null
+/SABR ASSEMBLER V18
+/
+/
+/
+/
+/
+/
+/
+//
+/
+/
+/
+/
+/COPYRIGHT (C) 1971,1974,1975
+/DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
+/
+/
+/
+/THIS SOFTWARE IS FURNISHED UNDER A LICENSE FOR USE ONLY ON A
+/SINGLE COMPUTER SYSTEM AND MAY BE COPIED ONLY WITH THE INCLU-
+/SION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE, OR ANT OTHER
+/COPIES THEREOF, MAY NOT BR PROVIDED OR OTHERWISE MADE AVAILABLE
+/TO ANY OTHER PERSON EXCEPT FOR USE ON SUCH SYSTEM AND TO ONE WHO
+/AGREES TO THESE LICENSE TERMS. TITLE TO AND OWNERSHIP OF THE
+/SOFTWARE SHALL AT ALL TIMES REMAIN IN DEC.
+/
+/
+/THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT
+/NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL
+/EQUIPMRNT COROPATION.
+/
+/DEC ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
+/SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DEC.
+/
+/
+/
+/
+/
+/
+\f/ VERSION SABR.17
+/ OCTOBER 26, 1971
+/ C. MCCOMAS
+/ R. LARY
+/ B. CLOGHER
+/SABR.V17 DEC-08-A2D2-17
+/ OCTOBER 26,1971
+/COPYRIGHT 1971, DIGITAL EQUIPMENT CORPORATION, MAYNARD MASSACHUSETTS 01754
+/ C. MCCOMAS/R. LARY/B. CLOGHER
+
+
+//
+/
+/FIXES TO SABR FOR V18 J.K 1975
+/
+/ .LITERAL POOL OVERFLOW
+/ .INCORRECT LINE NUMBER WITH ERROR MESSAGE
+/
+/
+/ASSEMBLY, LOAD AND SAVE INSTRUCTIONS
+/
+/ .PAL SABR.PA
+/ .PAL SPATCH.PA
+/
+/ .LO SABR$SPATCH$
+/
+/ .SA SYS SABR
+/
+/
+FIELD 1
+/
+/
+/ DEFINE LOCATIONS OF MONITOR SUBROUTINES
+/
+DISPL=10
+CDFSK=35+DISPL
+CDZSK=41+DISPL
+DUMS=57+DISPL
+LINK=23+DISPL
+OBIS=45+DISPL
+OPIS=52+DISPL
+RTN=30+DISPL
+
+
+*1
+USE, 0
+VAL, 0
+SYMBOL, 0 /PTR TO CURRENT USE WORD IN MST
+M7, -7
+AS0, S0
+OTP, CORE1-1 /OCC. TAB. PTR (NEXT FREE WORD BELOW)
+STT, STTP /PTR TO 1ST FREE WORD OF SYM. TAB.
+ /(KEEP STT AFTER OTP FOR INITA)
+
+X0, 0 /LINE BUFFER INDEX
+X1, 0 /TEMP AUTOS
+X2, 0
+X3, 0 /HSR BUFFER INDEX
+
+K2, 2
+K4, 4
+K3, 3
+K130, 130
+K30, 30
+
+/ INDIRRECT REFERENCES
+/
+ICPLFS, CPLFS /CHECK FOR AND PROCESS COLLECTION LFS
+CPGESI, CPGES
+CTYPE, L61 /CHARACTER TYPEOUT ROUTINE
+CRLF, L73
+DUMMY, DUM /DUMMY ROUTINE
+GETCHR, L65 /ROUTINE TO READ NEXT CHAR
+GETSYM, GTSYM /ROUTINE TO INPUT AND DECODE NEXT SYMBOL
+INI, INILPT
+LFSCHK, LFSCK /CHECK FOR A LFS
+OBSYM, OBNSYM /OBTAIN SYMBOL FROM MST
+DCIL1, RDL1
+NULLP, NULL
+OTYPE, L62 /OCTAL TYPEOUT ROUTINE
+OUTBIN, OUTBN /ROUTINE TO OUTPUT COMP WORD AND REL BITS
+OUTSKP, OUTSK /ROUTINE TO OUTPUT A SKIP INSTRUCTION
+POPEXP, POPEX
+PRSYMP, PRSYM
+PUNCH, L63 /BINARY PUNCH ROUTINE
+RDIL, DCIL /READ AND DECODE ONE INPUT LINE
+RECTI, RECT
+L55I, L55
+SKIPL, L72 /SKIPS UNTIL A RETURN OR SEMICOLON
+SLITAB, SLTAB /SEARCH LITERAL TABLE
+SPSTAB, SPSTB /SEARCH PAGE SYMBOL TABLE
+SREST, L66 /ROUTINE TO SEARCH EXTERNAL SYMBOL TABLE
+STCE, SETCT
+TEST, TSCHR /ROUTINE TO TEST CHARACTERS FOR EQUALITY
+TYPE, L64 /TTY TYPE ROUTINE
+WLNP, WLN
+WRITEP, WRITE
+/
+/ IMPORTANT VARIABLES
+/
+ACTR, 0 /ASSEMBLY COUNTER
+BSSSW, 0 /BSS 0 IN PROCESS SWITCH
+CHR, 0 /LOC TO HOLD CURRENT CHARACTER
+CSUM, 0 /BINARY CHECK SUM
+EQVOPR, EQUTB /EQUIVALENCE TABLE OUTPUT POINTER
+EQVIPR, EQUTB /EQ. TB. INPUT PTR.
+ILC, 0 /CURRENT LOCATION
+LFSPTR, 0 /POINTER TO LFS TABLE ENTRY
+LINE, 0 /NO OF LINES SINCE LAST LFS
+LITSZE, 0 /SIZE OF LIT TAB (ASM PHASE)
+LTSZE, 0 /SAME FOR COLL. PHASE
+LSTSKP, 0 /LAST INSTRUCTION SKIP INDICATOR
+LSTBNK, 0 /LAST INSTRUCTION BANK INDICATOR
+OBACTR, 0 /OFF BANK INSTRUCTION ADDITION COUNTER
+OPSCTR, 0 /OFF PAGE SYMBOL COUNTER
+/***** KEEP ITEMS SO INCLOSED IN THE GIVEN ORDER FOR INITA
+HICOM, 0177
+PAG, 0200 /CURRENT PAGE BITS
+ESTSIZ, 0 /HOLDS SIZE OF EXTERNAL SYMBOL TABLE
+EQVBIT, 0
+APMSW, 0 /AUTOMATIC PAGING MODE SWITCH
+TEM7, 1 /SPECIAL VARIABLE USED BY ASME5
+CPSW, 1
+DSW, 0
+FORFLG, 0 /FORTR PSUEDO-OP FLAG
+ /POS NON-0 MEANS IGNORE DATA
+SCOLON, 0
+/*****
+PASS, 0
+PGEESC, 0 /HOLDS SIZE OF PAGE ESCAPE REQUIRED FOR CUR PAGE
+PUPGE, 0
+PHASE, 0 /PHASE SWITCH
+PSTCPR, 0 /PAGE SYMBOL TABLE CODE POINTER
+PSTSPR, 0 /PAGE SYMBOL TABLE SYMBOL POINTER
+PSTSZE, 0 /SIZE OF PST
+PTCPR, 0 /PAGE TABLE CODE POINTER
+PTOPR, 0 /PAGE TABLE OP CODE POINTER
+PTSPR, 0 /PAGE TABLE SYMBOL POINTER
+PTSZE, 0 /SIZE OF PT
+TEM1, 0
+TEM2, 0
+TEM3, 0
+TEM4, 0
+TEM5, 0
+PTSIZ=PTSZE /KEYPUNCHING ERROR
+LITSIZ=LITSZE /KEYPUNCHING ERROR
+/
+/LISTING VARIABLES
+LFLG, 0 /0 IF NULL LINE
+EFLG, 0 /ERROR FLAG, 6BIT CHAR. IN LEFT HALF
+VFLG, 0 /0 IF NO VALUE TO OUTPUT
+AFLG, 0 /DITTO FOR ADDRESS
+CODE, 0 /RELOCATION CODE
+ADDRES, 0 /INSTR. ADDRESS
+VALUE, 0 /INSTR. VALUE
+
+/LINE INFO
+LFS, 0 /KEEP THIS LIST ORDERED AS GIVEN
+OP, 0 /TO AGREE WITH TLFS LIST
+IB, 0
+AFS, 0
+UMIC, 0
+NSGN, 0
+EXP, 0
+SK, 0
+CURSKP=SK
+BANK, 0
+S0, 0
+S1, 0
+S2, 0
+S3, 0
+
+
+/ FREQUENTLY USED CONSTANTS
+/
+K5, 5
+K7, 0007
+K10, 0010
+K20, 0020
+K40, 0040
+K77, 0077
+K100, 100
+K177, 0177
+K200, 0200
+K240, 240
+K400=L55I
+K600=GETSYM
+K3000=LFSCHK
+K1000=INI
+K4000=PRSYMP
+K7600, 7600
+M200=K7600
+M254, -254
+LINAX, LINBUF-1
+M2, -2
+M3, -3
+K2000=RDIL
+M3000=STCE
+M7600=K200
+/
+/ CORE LAYOUT POINTERS
+/
+PTOPTB=K200 /PAGE OP CODE TABLE 1 IN BANK 1
+BSEEST=K100 /BASE OF EXTERNAL SYMBOL TABLE IN BANK 1
+MST=K2000 /BASE MAIN SYM. TAB IN BANK1
+LFSBSE=K600 /BASE OF LOCATION FIELD SYMBOL TABLE IN BANK 1
+LITBSE=L55I /BASE OF ASSEMBLY PHASE LITERAL TABLE IN BANK 1
+PSTBSE, PSTB /BASE OF PAGE SYMBOL TABLE IN BANK 0
+PTBSE, PTB /BASE OF PAGE TABLE IN BANK 0
+LTBSE=K1000 /BASE OF COLL. PHASE LIT. TABLE IN BANK 1
+PTB=7176
+PSTB=6776
+
+
+
+IERROR=JMP I . /ERROR MESSAGES
+ ERRI
+CERROR=JMP I .
+ ERRC
+SERROR=JMP I .
+ ERRS
+
+\f*0200
+/
+/ MAIN CONTROL LOGIC
+/
+START, CLA
+ JMS I INITIO
+ DCA PASS
+ DCA I ICALSW
+ JMS I INITAP
+RSTRT, JMS I INI /INITIALIZE PAGE TABLE POINTERS
+ SKP
+RSTRT1, JMS I INCPTI /INCREMENT PAGE TABLE POINTERS
+ JMS I RDIL /INPUT AND DECODE ONE LINE
+ JMS I CKCSWP /CK FOR MISSING ARG
+ DCA BSSSW /ALSO CLR BSS IS PROGRESS SW
+ JMS I STCE /SET COUNTERS FOR CURRENT LINE
+ TAD OP /OP CODE
+ CDF 00
+ DCA I PTOPR /TO PT OP CODE WORD
+ CDF 10
+ TAD SK /OR IN SKIP BIT
+ SZA CLA
+ TAD K40 /SKIP INST
+ TAD I PTCPR /IN CASE LFS BIT IN ALREADY
+ DCA TEM1
+ TAD IB /OR IN INDIRECT BIT
+ SZA CLA
+ TAD K400 /YES
+ TAD TEM1
+ DCA TEM1 /FOR NEW PT CODE WORD
+ TAD EXP /DO WE HAVE A PAR?
+ SZA CLA
+ JMP RSTRT5 /YES
+ TAD UMIC /A MICRO INST?
+ SNA CLA
+ JMP RSTRT4 /NO AN MRI
+ TAD K4 /OR IN OPERATE BIT
+ JMP COMP /EXIT TO COMPUTE PAGE SIZE
+/
+/ PAR FOR AN OP CODE
+/
+RSTRT5, TAD K10 /PLACE PAR BIT ON PAGE TABLE
+ TAD TEM1
+ DCA TEM1
+RSTRT4, TAD M2
+ TAD AFS /IS AFS A CONSTANT
+ SZA
+ JMP .+6 /NO
+ TAD K20 /YES ... CONSTANT BIT
+RSTRT2, TAD TEM1 /+PT CODE WORD
+ DCA TEM1 /FOR NEW PT CODE WORD
+ TAD S0 /ACTUAL BINARY CONSTANT
+ JMP COMPGO /EXIT TO COMPUTE PAGE SIZE
+ IAC
+ SZA CLA /IS AFS A LITERAL
+ JMP .+3 /NO
+ TAD K2 /YES ... LITERAL BIT
+ JMP RSTRT2 /SAVE AS CONSTANT FROM THIS POINT
+ TAD AFS /PLACE AFS ON PST
+COMPGO, DCA I PTSPR
+ TAD NSGN /CK FOR # REF
+ SZA CLA
+ TAD K2000 /YES
+COMP, TAD TEM1 /GET ALL THE BITS
+ DCA I PTCPR /TO THE CODE WORD
+/
+/ NOW COMPUTE THE CURRENT PAGE SIZE
+/
+ TAD LFS /IS THERE AN LFS
+ SZA CLA
+ JMS I RECTI /YES ... EXIT TO RECOUNT PAGE
+ JMS I CPGESI /COMPUTE ACTUAL PAGE SIZE
+ TAD M200 /SUBTRACT PHYSICAL PAGE SIZE
+ SPA SNA CLA /IS SIZE .GT. PHYSICAL SIZE
+ JMP RSTRT6 /NO ... GET NEXT
+ JMS I PSHINI /YES ... PUSH CURRENT INPUT LINE
+ TAD PUPGE /RESTORE LAST PAGE ESCAPE
+ DCA PGEESC
+ CLA CMA /DECREMENT PAGE TABLE SIZE
+ TAD PTSZE
+ DCA PTSZE
+/
+/ ASSEMBLE THE CURRENT PAGE
+/
+ JMS I L55I /ASSEMBLE CURRENT PAGE
+ JMS I UDPG
+ JMS I FIXI /FIX ILC IF PASS 2
+ JMS I POPINI /POP LAST INPUT LINE
+ JMS I INI /INITIALIZE PT POINTERS
+ DCA I RECTI /CLR RECOUNT FLAG FOR CPLFS
+ JMP RSTRT1+2 /EXIT TO PROCESS POPPED LINE
+/
+RSTRT6, TAD PGEESC /SAVE CURRENT PAGE ESCAPE
+ DCA PUPGE /IN CASE NEXT LINE OVERFLOWS PAGE
+ TAD PASS
+ SZA CLA
+ JMS I LASMP
+ JMP RSTRT1
+LASMP, ASM02
+INITAP, INITA
+ICALSW, CALLSW
+INCPTI, INCPT
+POPINI, POPIN
+PSHINI, PUSHIN
+FIXI, FIXILC
+CKCSWP, CKCSW
+/ PAGE PSEUDO OPERATION
+/
+PPAGE, JMS I SKIPL
+ CLA CMA /DECREMENT PAGE TABLE SIZE
+ TAD PTSZE
+ SNA /WATCH FOR ZERO
+ JMP .+3
+ DCA PTSZE /FOR NEW PAGE TABLE SIZE
+ JMS I L55I /ASSEMBLE CURRENT PAGE
+ JMS I UDPG
+ JMP RORGX /INITIALIZE AND INPUT ANOTHER LINE
+/
+/ REORG PSEUDO OPERATOIN
+/
+PRORG, JMS I GETSYM /GET NEXT INPUT ITEM
+ NOP /NOTHING THERE
+ SKP /SYMBOL
+ SKP CLA /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ TAD S0 /NEW RELOCATABLE ORIGIN
+ AND K7600 /MASK OFF PAGE DISPLACEMENT BITS
+ SNA /ARE WE TRYING TO REORIGIN BELOW 200
+ IERROR /YES ... NOT ALLOWED
+ DCA RORG1 /SAVE NEW ORIGIN
+ CLA CMA /DECREMENT PAGE TABLE SIZE
+ TAD PTSZE
+ SNA /IS THIS THE BEGINNING OF A PAGE
+ JMP .+3 /YES
+ DCA PTSZE
+ JMS I L55I
+ TAD RORG1 /NEW ORIGIN
+ DCA PAG /TO PROPER LOCATION
+RORGX, JMS I FIXI
+ TAD RSTRTX /RETURN AT RSTRT INSTEAD OF RDL1
+ DCA DCIL1
+ JMP I NULLP /RE-INITIALIZE AND GO
+RORG1, 0
+RSTRTX, RSTRT
+UDPG, UDPAGE
+INITIO, IOINIT
+\f*0400
+/
+/ ROUTINE TO CAUSE CURRENT PAGE TO BE ASSEMBLED
+
+/THIS ROUTINE ACTS AS THE DRIVER FOR THE ASSEMBLY
+/PROCESS. MOST OF THE ACTUAL ASSEMBLY WORK
+/IS DONE BY ASMBL,A1,A2,& ASM02.
+/FUNCTION:(PASS1)
+/ CALL ASMBL TWICE. THE FIRST TIME
+/ (ACTR=0) PROHIBIT OUTPUT BY CONVERTING
+/ "JMS OUTBIN" TO "JMS DUMMY". BUT
+/ ALSO CONVERT "JMS DUMMY" TO "JMS OUTBN"
+/ SO THAT OUTPUTTING OF OCCURANCES
+/ WILL OCCUR IN FIRST CALL TO ASMBL.
+/ IN GENERAL, IN THE FIRST RUN THRU ASMBL
+/ NOTHING HAPPENS EXCEPT THAT TAGS ARE
+/ DEFINED (BY LFSCK). AS THE TAGS ARE
+/ DEFINED LFSCK ALSO CAUSES THE
+/ OCC.TAB. TO BE SEARCHED FOR PREVIOUSLY
+/ UNRESOLVED FORWARD REFERENCES TO THIS
+/ TAG. IF FOUND, RELOCATABLE POINTERS TO
+/ THE TAG ARE OUTPUT AT ALL REQUIRED
+/ ADDRESSES DURING PHASE1 OF ASMBL.
+/ AFTER THE 1ST ASMBL, OUTBIN & DUMMY ARE
+/ SWITCHED BACK TO NORMAL & ASMBL
+/ IS CALLED AGAIN. DURING 2ND ASMBL
+/ THE TAG DEFN. SECTION OF LFSCK IS
+/ BY-PASSED & ALL CODE EXCEPT OCCURANCES
+/ IS OUTPUT.
+/ (PASS2)
+/ DURING THE LISTING PASS MOST OF THE
+/ ASSEMBLY IS DONE ON A LINE-BY-LINE
+/ BASIS BY ASM02 SO L55 HAS LITTLE
+/ TO DO. IT JUST CALLS A2 TO
+/ OUTPUT THE LITERAL POOL & THEN
+/ A1 TO INIT. ASSEMBLY OF THE NEXT
+/ PAGE.
+/
+L55, 0
+ JMP I L55B /CHANGED FROM V16 TO FIX LISTING BUG
+L55C, TAD PASS
+ SZA CLA
+ JMP L55L
+ JMS I L55A /CHECK COMMON PUNCHED
+ TAD L56 /SET DUMMY ROUTINE TO OUTPUT
+ DCA DUMMY
+ TAD L56+1 /SET OUTPUT ROUTINE TO DUMMY
+ DCA OUTBIN
+ DCA ACTR /CLEAR ASSEMBLY COUNTER
+ TAD EQVOPR /SAVE FOR 2ND ASSEMBL
+ DCA TEM55
+ JMS I ASSMBL /ASSEMBLE PAGE FIRST TIME
+ TAD L56 /RESTORE OUTPUT ROUTINE
+ DCA OUTBIN
+ TAD L56+1 /RESTORE DUMMY ROUTINE
+ DCA DUMMY
+ ISZ ACTR /SET ASSEMBLY COUNTER
+ TAD TEM55 /RESTORE AS BEFORE 1ST ASSEMBL
+ DCA EQVOPR
+ JMS I ASSMBL /ASSEMBLE AND OUTPUT THIS TIME
+ JMP I L55 /RETURN
+L56, OUTBN
+ DUM
+ASSMBL, ASMBL
+L55A, HCBPS
+L55B, EQVFIX
+TEM55, 0
+
+
+
+L55L, JMS I A2P
+ JMS I A1P /INITIALIZE NEXT PAGE
+ JMP I L55
+A2P, A2
+A1P, A1
+
+
+
+/
+/COLLECTION PHASE ROUTINE
+/RECOUNT THE CURRENT PAGE BECAUSE OF AN LFS
+/CALL WITH AC=0, LEAVES AC=0
+/FUNCTION:WHEN A NEW TAG IS DEFINED ON PAGE
+/ OPSCTR & OBACTR MAY NEED TO BE
+/ REDUCED. CPLFS TAKES CARE OF OPSCTR
+/ BUT OBACTR REQUIRES REVIEWING THE
+/ ENTIRE PAGE.
+/OPERATION: (1) CALL CLNPST TO CLEAR BITS 1-9
+/ OF ALL PST CODE WORDS-WIPES OUT
+/ SHARE OF OBACTR DUE TO EACH SYM.
+/ (2) RE-INIT PAGE & CLR OBACTR
+/ (3) FETCH ITEM FROM PAGE TABLE
+/ (4) SET ALL INSTR.TYPE FLAGS ACCORDINGLY
+/ (5) CALL SETC
+/ (6) INC PAGE TABLE PTRS TO NEXT ITEM
+/ & LOOP BACK TO (3)
+/ CONTINUE THRU ENTIRE TABLE.
+/
+RECT, 0
+ TAD PSTSZE /ANYTHING ON PST?
+ SZA
+ JMP I CLENUP /YES, CLEAN PST CODES
+
+RECRET, JMS I INISS /DO INITS.
+ DCA OBACTR /ZERO OFF BANK ADDITION COUNTER
+ TAD PTSZE /SIZE OF PT
+ CIA
+ DCA RECT1 /TO INDEX LOCATION
+/
+/ THIS IS THE RECOUNT LOOP
+/
+RECT2, CDF 00
+ TAD I PTOPR /OP CODE FROM PT
+ CDF 10
+ DCA OP
+ TAD I PTCPR /CK FOR SKIP INST
+ AND K40
+ DCA SK
+ TAD I PTCPR /CK FOR # REF
+ AND K2000
+ DCA NSGN
+ TAD I PTCPR /PT CODE WORD
+ AND K4 /IS IT AN OPERATE INSTRUCTION
+ DCA UMIC
+ TAD I PTCPR /CK FOR PAR EXP
+ AND K10
+ DCA EXP
+ TAD I PTCPR /PAGE TABLE CODE WORD
+ AND K400 /MASK OFF INDIRECT BIT
+ DCA IB /PLACE IT IN PROPER LOCATION
+ TAD I PTCPR /PT CODE WORD
+ AND K20 /IS AFS A CONSTANT
+ CLL RTR
+ SZA
+ JMP .+3 /YES
+ TAD I PTCPR /PT CODE WORD
+ AND K2 /IS AFS A LITERAL
+ CLL RAR
+ SNA
+ TAD I PTSPR /ADDRESS FIELD SYMBOL
+ DCA AFS
+ TAD I PTSPR /ACTUAL LITERAL
+ DCA S0 /TO LITERAL LOCATION
+/
+/ AREA WHICH CALLS COUNT ROUTINE
+/
+RECT3, TAD I PTCPR /PT CODE WORD
+ AND K201 /IS THERE A TAG OR AN EQUIVALENCED TAG?
+ SNA CLA
+ JMP .+3 /NO
+ CLA CMA /YES ... SET BANK UNKNOWN
+ DCA BANK
+ JMS I STCE /CALL COUNT ROUTINE
+ ISZ RECT1 /OVER YET
+ SKP /NO
+ JMP I RECT /EXIT
+ JMS I ISZPT1
+ JMP RECT2 /GO GET NEXT LINE
+RECT1=L55
+INISS, INISUB
+CLENUP, CLNPST
+K201, 201
+ISZPT1, ISZPT
+PAUS1, PPAUS1
+/
+/ END PSEUDO OPERATION
+/
+PEND, TAD FORFLG /IF FLAG ON, TURN OFF &
+ SMA SZA CLA /GO TO RDL1
+ JMP I PAUS1 /GO TURN OFF FORTR P-OP
+ CLA CMA /DECREMENT PT SIZE
+ TAD PTSZE
+ SNA /ARE WE AT THE BEGINNING OF A PAGE
+ JMP PCSM /YES
+ DCA PTSZE /NO ... NEW PAGE TABLE SIZE
+ TAD PAG /CHECK FOR OVERFLOW INTO 7600 PAGE
+ TAD K200
+ SNA CLA
+ SERROR /OVERFLOW-ERROR S
+ ISZ APMSW /LEAVE AUTO PAGING MODE FOR LAST PAGE
+ JMS L55 /ASSEMBLE CURRENT PAGE
+PCSM, JMS I OUTBIN /OUTPUT CKSUM
+ CSUM
+ 10
+ TAD PASS
+ SZA CLA
+ JMP ENDEND
+ JMS I LEAD /OUTPUT TRAILER CODE
+ JMS I PRSYMP /TYPE OUT SYMBOL TABLE
+ ISZ PASS
+ JMS I INITAI
+ JMS I A1P
+ HLT
+ JMP I REE
+ENDEND, JMS I WLNP /LIST THE "END" STATMT
+ HLT CLA
+ JMP I K200 /RESTART AT 200
+REE, RSTRT
+INITAI, INITA
+LEAD, LEADER
+
+
+\f*600
+/READ INPUT ITEM
+/ IGNORES SPACES & TABS TO 1ST CHAR OF ITEM
+/ASSUMES AC=0
+/CALLING SEQ: JMS I GETSYM
+/ NULL RETURN (IF NO ITEM FOUND BEFORE CR ; / *
+/ SYMBOL RET. (WITH SYM PACKED IN S1-S3
+/ AND S0=SYMBOL LENGTH)
+/ CONST. RET. (WITH VALUE IN S0)
+/ LITERAL RET. (WITH VALUE IN S0)
+/SYNTAX: LITERALS: (000 NUMERIC LIT.
+/ (-000 NEG.
+/ (K000 OCTAL
+/ (D000 DECIMAL
+/ ("A ASCII LIT.
+/ (-"A NEGATIVE ASCII
+/ CONSTANTS: 000,-000,"A,OR -"A
+/ NOTE: AFTER A VALID QUOTE ANY ASCII CHAR MAY APPEAR
+/ AND WILL BE STORED AS THE CONST OR LIT VALUE.
+/ THIS INCLUDES CR ; / * SO THESE DO NOT
+/ TERMINATE A LINE AFTER A QUOTE.
+/ALL EXITS LEAVE AC=0
+/NOTE: TO PROVIDE A CHECK OF THE PUNCTUATION
+/CHAR. FOLLOWING PREVIOUSLY READ SYMBOL, GTSYM
+/DECREMENTS THE LINE PTR BEFORE STARTING
+/THE READ. IF THIS IS NOT WANTED
+/CALL TO GTSYM MUST BE PRECEDED
+/BY "ISZ X0"
+
+GTSYM, 0
+ CMA /DECREMENT CHARACTER PTR
+ TAD X0
+ DCA X0
+ TAD DSW /SAVE NUMERIC MODE
+ DCA TEM4
+ CMA /SIGN=-1 FOR POSITIVE
+ITM4, DCA SIGN /SIGN=0 TO FORCE NEGATION
+ITM2, JMS I RC /READ 1ST CHAR
+ JMP ITM5 /DIGIT: GET NUMERIC CONST
+ JMP ITM3 /ALPHA: GET SYMBOL
+ JMS I TEST /SORT LEADING PUNCT.
+ SL2-1
+ BL2-SL2
+ CERROR /ILLEGAL CHAR
+/
+/READ IN A SYMBOL
+/ASSUMES 1ST CHAR ALREADY READ IN & SAVED IN CHR
+/LEAVES SYMBOL PACKED IN 6BIT CHAR PAIRS IN S1-S3
+/ S0=NUMBER OF CHAR PAIRS ACTUALLY USED
+
+ITM3, ISZ SIGN /CK FOR -SYMBOL
+ CERROR /YES
+ DCA S0 /CLR FOR SYM LENGTH COUNT
+ DCA TEM1 /CLR FOR CHAR COUNT
+ DCA TEM3 /SET PTR FOR LEFT BYTE
+ TAD AS0 /AUTO-INDEX STORAGE IN S1-S3
+ DCA X2
+RSM2, ISZ TEM1 /COUNT CHAR
+ TAD TEM1 /ARE MORE THAN 6 CHARS IN?
+ TAD M7
+ SMA CLA
+ JMP RSM1 /YES, IGNORE
+ TAD CHR /NO, GET ASCII
+ AND K77 /MASK TO 6BIT
+ ISZ TEM3 /WHICH BYTE?
+ JMP RSM3 /LEFT
+ TAD TEM2 /ADD ON LEFT HALF
+ DCA I X2 /STORE CHAR PAIR IN S1-S3
+ JMP RSM1
+RSM3, RTL CLL /MOVE 6BIT TO LEFT BYTE
+ RTL
+ RTL
+ DCA TEM2 /SAVE WHILE WAITING ON RT BYTE
+ CMA /SET PTR FOR RT BYTE
+ DCA TEM3
+ ISZ S0 /COUNT 1 SYMBOL WORD
+RSM1, JMS I RC /READ NEXT CHAR
+ JMP RSM2 /DIGIT
+ JMP RSM2 /ALPHA
+ ISZ TEM3 /PUNCT=END OF SYM: CHECK BYTE PTR
+ JMP .+3 /NOTHING IN TEM2
+ TAD TEM2 /SAVE THE ODD CHAR
+ DCA I X2
+ TAD I IFCTP /SKIP SYM TAB IF IF-COUNT NOT UP
+ SMA CLA
+ JMS I SRS /LOOK IT UP IN SYM TAB. & ENTER IF NEC.
+ JMP ITM14 /EXIT
+
+/READ DIGIT STRING
+/ASSUMES 1ST DIGIT ALREADY READ AND ASCII SAVED IN CHR
+/ SGN=-1 IF NUM. IS TO BE NEGATED
+/ DSW=0 FOR OCTAL CONVERSION, 1 FOR DECIMAL
+/LEAVES AC=OCTAL VALUE OF DIGIT STRING (NEG IF SGN=-1)
+/ CHR=ASCII FOR TERMINAL PUNCTUATION
+
+ITM5, DCA TEM1 /CLEAR FOR ACCUMULATION
+RDS1, TAD CHR /REDUCE CHR TO OCTAL VALUE
+ TAD M260A
+ DCA TEM2
+ TAD DSW /OCTAL OR DECIMAL CONVERSION?
+ SZA CLA /OCTAL, CK FOR 8 OR 9
+ JMP MUL1 /DECIMAL, 8 OR 9 IS OK
+ TAD TEM2 /VALUE = 8 OR 9?
+ TAD M7
+ SMA SZA CLA /NO, GO ON
+ CERROR /YES
+ /MULT. PREV. VAL. BY CONV. FACTOR
+ TAD TEM1
+ CLL RTL /ARG *4
+ JMP MUL1+3
+MUL1, TAD TEM1
+ CLL RTL /ARG * 4
+ TAD TEM1 /PLUS ARG=ARG*5
+ RAL /*2
+ TAD TEM2 /ADD NEW DIGIT
+ DCA TEM1 /SAVE ACCUMULATED VALUE
+ JMS I RC /READ NEXT CHAR.
+ JMP RDS1 /DIGIT
+ CERROR /ALPHA
+ TAD TEM1 /PUNCT.; GET TOTAL
+ITM6, ISZ SIGN /IS NEGATE SW. SET?
+ CIA /YES
+ DCA S0 /STORE CONST VALUE
+ TAD TEM4 /RESTORE NUMERIC MODE
+ DCA DSW
+ JMP ITM13 /EXIT
+ITM7, JMS I GETCHR /READ ALPHA CONST.
+ SNA
+ IERROR /NOTHING THERE
+ DCA TEM1
+ JMS I GETCHR /READ NEXT CHAR FOR BENEFIT OF SKIPL
+ CLA
+ TAD TEM1
+ JMP ITM6
+ITM8, JMS I CKIFP /MOVE PTR TO LITERAL EXIT
+ITM9, JMS I RC /READ 1ST CHAR OF LIT.
+ JMP ITM5 /DIGIT: NUMERIC LIT.
+ NOP /ALPHA: MUST BE K OR D
+ JMS I TEST /LOOK FOR K,D,",-
+ SL3-1
+ BL3-SL3
+ CERROR /ILLEGAL CHAR
+ITM10, DCA SIGN /SET FLAG FOR NEG. LIT.
+ JMP ITM9
+ITM11, IAC /FORCE DECIMAL LIT.
+ITM12, DCA DSW /FORCE OCTAL LIT.
+ JMP ITM9
+ITM13, JMS I CKIFP /CONST. EXIT
+ITM14, JMS I CKIFP /SYMBOL EXIT
+ITM15, JMP I GTSYM /NULL EXIT
+M260A, -260
+SRS, SRSYM
+RC, RCH
+SIGN, 0
+IFCTP, IFCTR
+CKIFP, CKIF
+AERROR=JMP I .
+ ERRA
+CALLSP, CALLSW
+/
+/CHECK FOR TOO FEW ARGS
+/AERROR IF CALLSW MINUS
+/
+CKCSW, 0
+ TAD I CALLSP /CK
+ SMA CLA
+ JMP I CKCSW /OK
+ ISZ I CALLSP /COUNT MISSING ARG
+ NOP
+ AERROR /FLAG
+/
+/CHECK FOR TOO MANY ARGS
+/AERROR IF CALLSW POSITIVE
+/
+CKCLS, 0
+ TAD I CALLSP /DO WE WANT THIS ARG?
+ SMA CLA
+ AERROR /NO, ARG COUNT OVERFLOW
+ ISZ I CALLSP /YES, COUNT THIS ARG
+ NOP
+ JMP I CKCLS
+\f*1000
+/
+/ ROUTINE TO INITIALIZE POINTERS FOR THE COLLECTION OF A PAGE
+/
+INILPT, 0
+ CLA IAC
+ DCA PTSZE /SET PAGE TABLE SIZE
+ DCA PSTSZE /ZERO PAGE SYMBOL TABLE SIZE
+ DCA LTSZE /ZERO LITERAL TABLE SIZE (COLL. PHASE)
+ DCA LITSZE /& ASMBLY PHASE LIT TABL
+ DCA OPSCTR /ZERO OFF PAGE SYMBOL COUNTER
+ DCA PHASE /SET PHASE SWITCH TO COLLECTION
+ JMS INISUB
+ CLA CMA
+ DCA I BNKSV
+ CLA IAC
+ DCA I LSTSKK
+ TAD EQVBIT /ANY EQUIV. LEFT FROM LAST PAGE?
+ SZA
+ JMP EQSAV /YES, SKIP TABLE REINIT & SAVE BIT
+ DCA EQVIPR /NO, RE-INIT EQ. TAB. PTRS
+ DCA EQVOPR
+EQSAV, DCA I PTCPR /INITIALIZE PAGE TABLE CODE WORD
+ DCA I PTSPR /INITIALIZE PAGE TABLE SYMBOL WORD
+ CDF 00
+ DCA I PTOPR /INITIALIZE PT OP CODE WORD
+ CDF 10
+ TAD LFSBSE /INITIALIZE LFS TABLE POINTER
+ DCA LFSPTR
+ DCA OBACTR /ZERO OFF BANK ADDITION COUNTER
+ TAD RDL1X /RESTORE IN CASE OF REORG OR PAGE PSUEDO
+ DCA DCIL1
+ JMP I INILPT /RETURN
+
+RDL1X, RDL1
+BNKSV, BNKSAV
+LSTSKK, SKPSAV
+M211, -211
+
+
+/
+/GENERAL PAGE TABLE INITALIZATION
+/DOES PARTS OF INITALIZ. COMMON TO SEVERAL
+/ROUTINES
+/
+INISUB, 0
+ TAD PTBSE /INITIALIZE PAGE TABLE CODE POINTER
+ DCA PTCPR
+ TAD PTBSE /INITIALIZE PAGE TABLE SYMBOL POINTER
+ IAC
+ DCA PTSPR
+ TAD PTOPTB /INITIALIZE PT OP CODE POINTER
+ DCA PTOPR
+ CLA CMA /SET LAST BANK UNKNOWN
+ DCA LSTBNK
+ CLA IAC /SET LAST INSTRUCTION SKIP INDICATOR ON
+ DCA LSTSKP
+ CLA CMA /SET CURRENT BANK UNKNOWN
+ DCA BANK
+ JMP I INISUB
+
+
+/
+/SUBR. TO WRITE A LINE
+/MAY BE USED ONLY DURING PASS 2 (LISTING)
+/FUNCTION:TYPES (OR PUNCHES) EACH LINE OF SOURCE
+/ WITH PROPER ASSEMBLY ADDR. & CODES
+/ AT BEGINNING OF LINE (OR SPACES IF
+/ THESE ARE OMITTED).
+/LINE FORMAT:
+/ADDR VALU RC CONTENTS OF LINE BUFFER
+/ERROR FLAGS TYPED BETWEEN ADDR & VALU
+/COLUMNS. RC=RELOCATION CODE. THE LINE
+/BUFFER IS IN FIELD 1 AT "LINBUF."
+/
+WLN, 0
+ TAD LFLG /NULL LINE?
+ SNA CLA
+ JMP WLN3 /YES
+ TAD AFLG
+ SZA CLA
+ JMP .+4
+ JMS I CTYPE /IF AFLG=0 TYPE 4 SPACES
+ JMS I CTYPE
+ JMP .+3
+ TAD ADDRES /OTHERWISE TYPE 4 DIGITS
+ JMS I OTYPE
+ TAD EFLG /TYPE ERR. FLAG & SPACE
+ JMS I CTYPE
+ TAD VFLG /SAME TREATMENT FOR VALUE
+ SZA CLA /AS FOR ADDRES
+ JMP .+4
+ JMS I CTYPE
+ JMS I CTYPE
+ JMP .+3
+ TAD VALUE
+ JMS I OTYPE
+ TAD K240 /SPACE
+ JMS I TYPE
+ TAD CODE /2 DIGITS OR 2 SPACES
+ JMS I CTYPE
+ CDF 00
+ TAD I LINEB /IS THERE ANY LINE TO TYPE?
+ CDF 10
+ SNA CLA
+ JMP WLN3 /NO, EXIT
+ JMS I CTYPE /2 SPACES
+ TAD K240 /3RD SPACE
+ JMS I TYPE
+ TAD LINAX /INDEX LINE BUFFER
+ DCA X1
+ DCA CHARCT /CLR COUNTER
+WLN1, CDF 00
+ TAD I X1 /GET CHAR
+ CDF 10
+ SNA
+ JMP WLN3 /END OF LINE
+ DCA CHR
+ TAD CHR /CK FOR TAB
+ TAD M211
+ SNA CLA
+ JMP WLN2 /YES
+ ISZ CHARCT /COUNT 1 CHAR
+ TAD CHR /OUTPUT IT
+ JMS I TYPE
+ JMP WLN1
+WLN2, TAD K240 /SIMULATE TAB
+ ISZ CHARCT
+ JMS I TYPE
+ TAD CHARCT
+ AND K7
+ SZA CLA
+ JMP WLN2 /CONTINUE TAB
+ JMP WLN1
+WLN3, JMS I CRLF
+ DCA VFLG
+ DCA EFLG
+ DCA AFLG
+ DCA CODE
+ CDF 00
+ DCA I LINEB
+ CDF 10
+ JMP I WLN
+
+LINEB, LINBUF
+CHARCT=TEM5
+/
+/PATCH FOR SETCT
+/NOT USED BY ANY OTHER PART OF PROGRAM
+/(ADDED AT V15)
+/
+/FUNCTION: SET BANK=1 AFTER A "CALL"
+/(MUST BE DONE FOR BENEFIT OF RECT ROUTINE)
+/
+SETCAL, 0
+ TAD I PTCPR /CK FOR CALL CONST.
+ AND K100
+ SNA CLA
+ JMP .+3 /NO
+ IAC /YES, BANK TO CURRENT
+ DCA BANK
+ TAD EXP /DO 2 INSTRUCTIONS THAT
+ TAD UMIC /WERE KNOCKED OUT OF SETCT
+ JMP I SETCAL
+
+
+\f*1200
+/
+/ ASSEMBLY PHASE PAR
+
+/
+/PPAR1 IS ACTUALLY A PART OF THE BASIC ASSEMBLY
+/ROUTINE ASM02.
+/IT ASSEMBLES ALL PARAMETERS
+/TYPES ARE: RC=00 ABSOLUTE CONSTANT
+/ RC=01 RELOCATABLE ADDRESS
+/ RC=05 CDF TO CURRENT FIELD
+/ RC=06 CALL CONSTANT (#ARGS+EXT.SYM.#)
+/ ALSO LITERALS USED IN ARG STATEMENTS
+/ SUCH LITS. ARE PUT IN LIT. POOL
+/ AND RC=01 ADDRESS OF LIT. PUT WHERE
+/ THE ARG STATEMT OCCURS.
+/ADDRESS PARAMETERS ARE ACUALLY TAKEN
+/CAR OF BY SUBR. PPAR3S.
+/
+/
+PPAR1, DCA PPARY /CLR OUTPUT CODE
+ TAD I PTCPR /CK FOR LITERAL ARG OR PARAM.
+ AND K2
+ SZA CLA
+ JMP PARLIT /YES
+ TAD I PTCPR /PT CODE WORD
+ AND K20 /IS IT PAR CONSTANT
+ SNA CLA
+ JMP PPAR3 /NO
+ TAD I PTSPR /YES ... ACTUAL CONSTANT
+ DCA TEM1 /TO DIRECTLY ADDRESSABLE LOC
+ TAD I PTCPR /IS THIS A SPECIAL CONSTANT USED BY CALL
+ AND K100
+ SNA CLA
+ JMP .+5
+ IAC /YES, SET BANK TO CURRENT (NEW IN V15)
+ DCA BANK
+ IAC /& FORCE CODE=06
+ JMP .+5
+ TAD I PTCPR /IS THIS A CDF INSTRUCTION TO THIS BANK
+ AND K1000
+ SNA CLA
+ JMP .+3
+ TAD K5
+ DCA PPARY
+ JMS I WRITEP
+ JMS I OUTBIN /OUTPUT IT
+ TEM1 /NO RELOCATION
+PPARY, 0
+ SKP
+PPAR3, JMS PPAR3S /DO ALL WORK
+ JMP I PPAR5-1
+SERALI, SRALT
+
+PARLIT, TAD I PTSPR /PUT LIT ON TAB.
+ DCA S1
+ IAC
+ DCA S0
+ JMS I SERALI
+ AND K177 /GET PAGE ADDRESS
+ TAD PAG /+ PAGE BITS
+ DCA TEM1
+ ISZ PPARY /CODE FOR RELOCATABLE ADDR.
+ JMP PPARY-3
+/
+/ SUBROUTINE TO ASSEMBLE PAR SYMBOL
+
+/
+/ASSEMBLE ADDRESS PARAMETER
+/SYMBOL MAY BE ABSOLUTE OR RELOCATABLE
+/NORMAL OR # REF.
+/IF SYMBOL IS YET UNDEFINED, AN ENTRY IS
+/MADE FOR IT & THE CURRENT ADDRESS IN THE
+/OCCURANCE TABLE.
+/
+/
+PPAR3S, 0
+ DCA PPARX /CLR OUTPUT CODE
+ TAD ACTR /WHCH TIME ARE WE ASSEMBLING THIS PAGE
+ /NOTE: ACTR REMAINS 1 DURING PASS 2
+ SNA CLA
+ JMP I PPAR3S /FIRST TIME JUST RETURN
+ TAD I PTSPR /SYMBOL
+ DCA AFS /TO DIRRECTLY ADDRESSABLE LOCATION
+ JMS I OBSYM /GET IT FROM MST
+ AFS
+ TAD USE /MST USE WORD
+ AND K400 /IS IT DEFINED YET
+ SNA CLA
+ JMP PPAR4 /NO ... OCCURANCE
+ TAD USE /MST USE WORD
+ AND K3000 /IS SYMBOL ABSOLUTE
+ SZA CLA
+ ISZ PPARX /OUTPUT RELOCATABLE
+ JMS I NSCHKI
+ TAD VAL /INCREMENT IF # REF.
+PPAR6, DCA TEM1
+ JMS I WRITEP
+ JMS I OUTBIN
+ TEM1
+PPARX, 0
+ JMP I PPAR3S /RETURN
+PPAR4, TAD AFS /SYMBOL
+ DCA I PPAR5 /TO SUBROUTINE LOCATION
+ TAD ILC /CUR LOC
+ DCA I PPAR5+1 /TO SUBROUTINE LOC
+ JMS I NSCHKI
+ CLL RTL
+ DCA I PPAR5+3 /SET ATEM2 FOR NORMAL OR # REFERENCE
+ JMS I PPAR5+2 /CREATE AN OCCURANCE
+ JMP PPAR6 /OUTPUT ZERO WORD FOR LOADER
+ ASM01
+PPAR5, ATEM3
+ ATEM4
+ L53B
+ ATEM2
+NSCHKI, NSCHK
+
+/
+/TWO CHARACTER TYPEOUT
+/FROM PACKED ASCII PAIR
+/CALL WITH 6-BIT PAIR IN AC
+/L61A ACTS AS SUBR FOR L61
+/
+L61, 0
+ DCA TEM1 /SAVE CHARACTERS
+ TAD TEM1
+ RTR /SHIFT HIGH 6 BITS TO LOW
+ RTR
+ RTR
+ JMS L61A /MASK AND TYPE FIRST CHARACTER
+ TAD TEM1
+ JMS L61A /MASK AND TYPE SECOND CHARACTER
+ JMP I L61 /RETURN
+
+L61A, 0
+ AND K77 /MASK CHAR TO 6 BITS
+ SNA /ZERO MEANS SPACE
+ JMP L61B
+ JMP I L61CP /HAVE DO SOME OF THIS WORK ON ANOTHER PAGE
+L61D, JMS I TYPE /TYPE CHAR
+ JMP I L61A /RETURN
+L61B, TAD K240 /SPACE
+ JMP L61D
+L61CP, L61C
+
+/
+/ ROUTINE TO TEST CHARACTERS AND TAKE SELECTIVE EXITS
+/
+/ CALL IS
+/ JMS I TEST
+/ SORT LIST ADDR -1
+/ BRANCH LIST ADDR - SORT LIST ADDR
+/ RETURN IF ALL TESTS UNSUCCESSFUL
+/ ASSUMES AC=0 & CHAR TO LOOK FOR IS IN CHR
+
+/SORT ENDS UNSUCCESSFULLY AT
+/NEGATIVE NUMBER FOLLOWING SORT LIST
+/IF SORT IS SUCCESSFUL, A BRANCH IS
+/TAKEN VIA BR. LIST ITEM CORRESPONDING
+/TO MATCHING SORT LIST ITEM.
+/
+TSCHR, 0
+ CLA
+ TAD I TSCHR /GET SORT LIST ADDR -1
+ DCA X1 /AUTO-INDEX SORT LIST
+ ISZ TSCHR /MOVE ARG PTR
+ CDF 00
+TSCHR2, TAD I X1 /GET SORT LIST ITEM
+ SPA
+ JMP TSCHR3 /NEG = END OF SORT LIST
+ CIA /COMPARE ITEM WITH CHR
+ TAD CHR
+ SZA CLA /0 = MATCH FOUND
+ JMP TSCHR2 /NO MATCH, TRY NEXT ITEM
+ TAD X1 /GET ADDR. OF MATCH
+ CDF 10
+ TAD I TSCHR /+BR. LIST ADDR - SORT LIST ADDR
+ DCA TSCHR /= PTR TO BR. LIST ITEM
+ CDF 00
+ TAD I TSCHR /GET BR. LIST ITEM
+ DCA TSCHR /= BRANCH PTR FOR THE MATCH
+ SKP
+TSCHR3, ISZ TSCHR /NO MATCH ON LIST
+ CLA CLL
+ CDF 10
+ JMP I TSCHR / RETURN UNSUCCESSFUL
+
+
+\f*1400
+/
+/ CALL PSEUDO OPERATION
+/
+PCALL, JMS I GETSYM /GET NEXT INPUT ITEM
+ NOP /NOTHING THERE
+ SKP /SYMBOL
+ TAD CHR /CONSTANT
+ TAD M254 /LITERAL
+ SZA CLA /IS BREAK CHARACTER A COMMA
+ JMP CALERR /NO ... ERROR
+ TAD S0 /SAVE ARG COUNT
+ DCA ARGCT
+ ISZ X0 /PROHIBIT FLAGGING THE COMMA
+ JMS I GETSYM /GET SUBROUTINE NAME
+ SKP /NONE THERE
+ JMP .+3 /SYMBOL
+ NOP /CONSTANT
+CALERR, IERROR /LITERAL
+ JMS I SKIPL
+ JMS I SREST /SEARCH EXTERNAL SYMBOL TABLE AND OUTPUT TV DEF
+ DCA PCALL1 /SAVE EXTERNAL SYMBOL NUMBER
+ TAD LFS
+ DCA I CALLFS
+ TAD ARGCT /SET ARG COUNT IN DYNAMIC LOCATION
+ CIA
+ DCA CALLSW /SET CALL - ARG IN PROCESS SWITCH & COUNTER
+ TAD ARGCT /COUNT OF ARGS
+ RAL CLL /*2
+ TAD ARGCT /*3 IN CASE USING LITERAL ARGS
+ TAD K2 /+2
+ JMS I PARG2 /CAN THE CURRENT PAGE HOLD IT
+ SKP /YES
+ JMS I INI /NO ... INITIALIZE PT PTRS ... HAD TO ASSEMBLE PAG
+ TAD I CALLFS
+ DCA LFS
+ JMS I ICPLFS /PROCESS COLLECTION LFS
+ TAD I PTCPR /PT CODE WORD
+ TAD K30 /ADD CONSTANT BIT & PAR BIT
+ DCA I PTCPR /TO PT CODE WORD
+ TAD PARG6 /PLACE JMS LINK INSTRUCTION
+ DCA I PTSPR /AS CONSTANT
+ JMS PARG5 /INC PT PTRS & ASSMBL IF PASS 2
+ TAD K130 /CORRECT BIT PATTERN FOR CALL
+ DCA I PTCPR /TO PT CODE WORD
+ IAC /A CALL FORCES BANK TO CURRENT
+ DCA LSTBNK /(NEW IN V15)
+ IAC
+ DCA BANK
+ TAD ARGCT /COUNT OF ARGS
+ CLL RTL /TO HIGH ORDER AC
+ RTL
+ RTL
+ TAD PCALL1 /OR IN EXTERNAL SYMBOL NUMBER
+ DCA I PTSPR /PLACE IN PT SYMBOL WORD
+ JMP ARGPP0 /COMMON EXIT
+/
+/ ARG PSEUDO OPERATION
+/
+PARG, JMS I GETSYM /GET NEXT INPUT ITEM
+ IERROR /NOTHING THERE
+ JMP PARGSM /SYMBOL
+ JMP PARGCN /CONSTANT CODE IS 2
+ JMS I SKIPL /FIXES BUG IN V16
+ JMS I SLITAB /PUT LIT ON TABLE
+ CMA /LIT CODE IS 1
+PARGCN, TAD K2
+ SKP
+PARGSM, TAD SYMBOL /PAR ADDRESS
+ DCA AFS
+ JMS I SKIPL
+ JMS I CKCLSP /CK FOR TOO MANY ARGS
+/
+/ ROUTINE TO PUT A CDF IN THE PAGE TABLE
+/
+ TAD K30 /PT CODE WORD
+ DCA I PTCPR /TO PT
+ JMS I ICPLFS /PROCESS ANY LFS
+ TAD K6201 /CDF
+ DCA I PTSPR /TO PT SYMBOL WORD
+ TAD M2
+ TAD AFS /IS AFS A CONSTANT
+ SNA
+ JMP ARGPP4 /YES
+ IAC /IS AFS A LITERAL
+ SNA CLA
+ JMP ARGPP5 /YES
+ JMS I OBSYM /NO ... SYMBOL ... GET ITS POINTERS TO MST
+ AFS
+ TAD USE /AFS MST USE WORD
+ AND K40 /IS IT A COMMON SYMBOL
+ SNA CLA
+ JMS CDFCHG /NO
+ JMS ARGPP2 /INCREMENT PT PTRS AND PUT OUT A PAR
+ TAD AFS
+ DCA I PTSPR /PLACE SYMBOL IN PT SYMBOL WORD
+ARGPP0, JMS PARG5 /INC PT PTRS &ASSMBL IF PASS 2
+ JMP I POPEXP /EXIT TO GET NEXT LINE
+
+/
+ARGPP5, JMS CDFCHG
+ JMS ARGPP2 /INCREMENT PTRS AND PUT OUT A PAR
+ TAD K2 /SET LITERAL BIT
+ JMP .+3 /SAVE AS CONSTANT FROM HERE
+/
+ARGPP4, JMS ARGPP2 /INCREMENT PTRS AND PUT OUT A PAR
+ TAD K20 /SET CONSTANT BIT
+ TAD I PTCPR /PT CODE WORD
+ DCA I PTCPR /FOR PROPER WORD
+ TAD S0 /PLACE CONSTANT IN PROPER LOCATION
+ DCA I PTSPR
+ JMP ARGPP0
+/
+/ ROUTINE TO INCREMENT POINTERS AND SET UP FOR A PAR IN THE PAGE TABLE
+/
+ARGPP2, 0
+ JMS PARG5 /INC PT PTRS & ASSMBL IF PASS 2
+ TAD K10
+ DCA I PTCPR
+ JMP I ARGPP2 /RETURN
+K6201, CDF 10
+
+ASMIF1, 0
+ TAD PASS
+ SZA CLA
+ JMS I ASM02S /ASSMBL NOW IF LISTING PASS
+ JMS I INC
+ JMP I ASMIF1
+
+ASM02S, ASM02
+INC, INCPT
+
+ARGCT, 0
+CALLFS=PRSYMP /TEMP
+CALLSW, 0
+PARG2, IFFSUB
+CKCLSP, CKCLS
+PARG5=ASMIF1
+PARG6, JMS LINK
+M10, -10
+
+/ROUTINE TO CHANGE CDF 10 TO CDF *
+CDFCHG, 0
+ TAD I PTCPR
+ TAD K1000 /SET CDF * BIT IN P.T.
+ DCA I PTCPR
+ TAD I PTSPR /CHANGE 6211
+ TAD M10 /TO 6201
+ DCA I PTSPR
+ JMP I CDFCHG
+PCALL1=CDFCHG /TEMP
+
+
+\f*1600
+/
+/ COMMN PSEUDO OPERATION
+/
+PCOMMN, JMS I GETSYM /GET ADDRESS FIELD SYMBOL
+ NOP /NOTHING THERE
+ SKP /SYMBOL THERE
+ SKP CLA /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ TAD LFS
+ SNA CLA /IS THERE AN LFS
+ JMP COMMN2 /NO ... JUST INCREMENT COUNTERS
+ JMS I OBSYM /GET POINTERS TO LFS
+ LFS
+ TAD USE /MST USE WORD
+ AND K3 /SAVE SYMBOL LENGTH
+ TAD K440 /ADD CORRECT BITS
+ DCA USE /FOR NEW MST USE WORD
+ TAD S0 /NO OF COMMON LOCATIONS
+ SNA CLA /ARE THERE ZERO
+ JMP COMMN1 /YES ... EQUIVALENCE OUTPUT
+ TAD HICOM /NO ... HIGHEST COMMON LOCATION USED
+ TAD S0 /+SIZE OF THIS BLOCK
+ DCA TEM1 /FOR TENTATIVE NEW HIGHEST
+ TAD TEM1 /ACTUAL ADDRESS
+ AND K7600 /ARE WE OVERFLOWING ONTO THE LAST PAGE
+ TAD M7600
+ SZL CLA
+ SERROR /YES ... ERROR
+ TAD HICOM /LAST COMMON ASSIGNMENT
+ IAC /+1
+ DCA VAL /GIVES NEW ADDRESS
+ TAD TEM1 /NEW HIGHEST COMMON LOCATION
+ DCA HICOM /TO PROPER LOC
+COMMN0, TAD VAL
+ JMP I NULLP /GO GET NEXT LINE
+/
+/ EQUIVALENCE GENERATED COMMON OUTPUT
+/
+COMMN1, TAD HICOM /PLACE LAST COMMON ASSIGNMENT
+ IAC /+1
+ DCA VAL /IN MST AS ADDRESS
+ JMP COMMN0 /EXIT
+/
+/ NON LOCATION FIELD SYMBOL COMMON ASSIGNMENT
+/
+COMMN2, TAD HICOM /LAST HIGHEST
+ TAD S0 /+CUR ASSIGNMENT
+ DCA HICOM /FOR NEW HIGHEST
+ TAD HICOM /NEW HIGHEST
+ AND K7600 /ARE WE OVERFLOWING ONTO THE LAST PAGE
+ TAD M7600
+ SZL CLA
+ SERROR /YES ... ERROR
+ JMP COMMN0 /NO ... EXIT
+K440, 0440
+
+/TEXT PSUEDO-OP
+
+PTEXT, TAD FORFLG
+ SMA SZA CLA
+ JMP I DCIL1
+ JMS I GETCHR /LOOK FOR STRING START
+ JMS I TEST
+ SL1-1
+ BL1-SL1
+ TAD CHR /SAVE OPENING DELINEATOR
+ CIA
+ DCA DELIN
+ DCA TEXCTR /CLR CHAR CTR
+ TAD X0 /SAVE AUTO-INDEX TO START OF STR
+ DCA TEXSUB
+TEX1, JMS I GETCHR /LOOK FOR END OF STRING
+ SNA
+TEXERR, IERROR /TOO SOON END OF LINE
+ TAD DELIN
+ SNA CLA
+ JMP TEX2 /THE END OF THE LINE
+ ISZ TEXCTR /KEEP STRING TALLY
+ JMP TEX1
+TEX2, JMS I GETCHR /MOVE LINE PTR TO CHAR. AFTER DELINEATOR
+ CLA
+ JMS I SKIPL
+ JMS I PUSH /SAVE INFO FOR A MINUTE
+ TAD TEXCTR
+ IAC
+ CLL RAR /DIV BY 2
+ JMS I IFFS /SEE IF STR WILL FIT ON PAGE
+ SKP CLA
+ JMS I INI /HAD TO ASSMBL: RE-INIT PT
+ JMS I POP /POP LINE INFO
+ JMS I ICPLFS /PROCESS LFS
+ TAD TEXCTR
+ CIA
+ DCA TEXCTR
+ TAD TEXSUB /RE-INIT STRING INDEX
+ DCA X0
+ DCA BYTE /SET FOR LEFT BYTE
+TEX5, JMS I GETCHR
+ AND K77 /EXTRACT 6 BIT
+ ISZ BYTE
+ SKP
+ JMP TEX4 /RIGHT BYTE
+ CLL RTL
+ RTL /MOVE LEFT
+ RTL
+ DCA TXSV
+ CMA /SET PTR TO RT BYTE
+ DCA BYTE
+ SKP
+TEX4, JMS TEXSUB
+ ISZ TEXCTR
+ JMP TEX5 /NOT DONE
+ ISZ BYTE /CK FOR ODD CHAR LEFT OVER
+ SKP /NO
+ JMS TEXSUB /YES
+ JMP I POPEXP
+
+TEXSUB, 0
+ TAD TXSV /COMBINE LEFT & RT BYTES
+ DCA I PTSPR
+ TAD K30 /PAR CONST BITS
+ TAD I PTCPR
+ DCA I PTCPR
+ TAD X0 /SAVE INDEX
+ DCA TXSV
+ JMS I ASIF /INC PTRS & ASSMBL IF PASS 2
+ TAD TXSV /RESTOR INDEX
+ DCA X0
+ JMP I TEXSUB
+
+PUSH, PUSHIN
+POP, POPIN
+ASIF, ASMIF1
+IFFS, IFFSUB
+DELIN, 0
+TEXCTR, 0
+TXSV=S3
+BYTE=DELIN
+
+
+
+/
+/WRITE LINE IF IN PASS 2
+/
+WLNIF1, 0
+ TAD PASS /WHICH PASS?
+ SZA CLA
+ JMS I WLNP /LISTING
+ JMP I WLNIF1
+
+/
+\f*2000
+
+/READ & DECODE 1 LINE
+/IGNORES NULL LINES & COMMENT LINES
+/ EXP=NON-0 IF NO OPERATION ON LINE (CONST, LIT,
+/ OR ADDRESS ONLY)
+/ SK=NON-0 IF SKIP INSTR.
+/ UMIC=NON-0 IF OP CODE IS 6 OR 7
+/ IB=NON-0 IF INSTR IS INDIRECT
+/ NSGN=NON-0 IF AFS IS # SYMBOL
+/ OP=OP CODE
+/ LFS=PTR TO LFS IN SYM. TAB., IF ANY
+/*** AFS=2 IF CONSTANT PARAMETER OR CONST. AFS***
+/*** AFS=1 IF LITERAL PARAMETER OR LIT. AFS***
+/ AFS=SYM. TAB. PTR. TO ADDRESS PARAMETER OR AFS
+/
+DCIL, 0
+RDL1, JMS I RLNP /READ IN A LINE
+ DCA LFS /CLR STORAGE FOR LINE INFO
+ DCA EXP
+ DCA OP
+ DCA SK
+ DCA IB
+ DCA NSGN
+ DCA UMIC
+ DCA I RECTI /CLR RECOUNT FLAG FOR CPLFS
+ ISZ LINE /INC LINE COUNT
+ ISZ X0 /DO NOT BACK UP X0
+ JMS I GETSYM /READ 1ST ITEM
+ JMP RDL11 /NULL LINE OR COMMENT
+ JMP RDL7 /SYMBOL - POSSIBLE LFS
+ JMP .+3 /SET AFS=2 FOR CONSTANT
+RDL3, JMS I SLITAB /PUT LIT ON TAB
+ CMA /AFS=1 FOR LITERAL
+RDL2, TAD K2
+ ISZ EXP /SET PARAMETER EXPRESSION FLAG
+RDL5, DCA AFS
+ JMS I SKIPL /SKIP TO END OF LINE
+ JMP I DCIL /RETURN
+RDL7, TAD CHR /CK FOR COMMA
+ TAD M254
+ SZA CLA
+ JMP RDL9 /NO, SHOULD BE SPACE,TAB,CR,OR ;
+ JMS I WHATPP
+ SKP
+ IERROR /OP SYMBOL AS TAG
+ TAD SYMBOL /NO, ENTER PTR TO LFS
+ DCA LFS
+ ISZ X0 /PROHIBIT FLAGGING COMMA
+ JMS I GETSYM /GET ITEM AFTER LFS
+ JMP I PB0 /NULL AFTER LFS IS BSS0
+ JMP RDL9 /SYMBOL-OP OR PARAMETER
+ JMP RDL2 /CONSTANT
+ JMP RDL3 /LITERAL
+RDL9, JMS I WHATPP
+ JMP RDL4 /NO-MUST BE ADDRESS PARAMETER
+ TAD USE /IS SYMBOLE A PSUEDO-OP
+ AND K40
+ SZA CLA /NO
+ JMP RDL18 /YES
+ TAD USE /IS SYMBOL AN MRI?
+ AND K400
+ SNA CLA
+ JMP RDL14 /NO-OPR OR I/O INSTR.
+ TAD USE /MRI-PUT OP SKIP BIT
+ AND K20 /INTO SKIP FLAG
+ DCA SK
+ TAD VAL
+ DCA OP
+ SKP
+RDL10, ISZ IB / SET INDIRECT FLAG
+ JMS I GETSYM /READ SYMBOL AFTER MRI
+ IERROR /NOTHING THERE
+ JMP RDL12 /SYMBOL
+ IAC /AFS=2 FOR CONST. AFS
+ IAC /AFS=1 FOR LIT.AFS
+ JMP RDL5 /SKIP TO END OF LINE
+
+RDL12, TAD SYMBOL /CK FOR I
+ CIA
+ TAD IBTI /SYM. ADDR-I ADDR
+ SNA CLA /NOT I
+ JMP RDL10 /IT IS I
+ JMS I WHATPP
+ JMP .+3
+ IERROR /AFS NOT USER SYMBOL
+RDL4, ISZ EXP /ENTER HERE ON ADDRESS PAR.
+ TAD CHR /CK FOR #
+ TAD M243
+ SZA CLA
+ JMP .+4
+ ISZ NSGN /YES
+ JMS I GETCHR /PREVENT FLAGGING #
+ CLA
+ TAD SYMBOL /SET PTR TO AFS
+ JMP RDL5
+RDL13, JMS I WHATPP
+ IERROR /ELIM USER SYM
+ TAD USE /CK FOR OPR OR I/O INST.
+ AND K4440 /ELIM. MRI, PSUEDO
+ SZA CLA /OK
+ IERROR /ILLEGAL SYMBOL
+RDL14, TAD USE /COMPARE NEW MICRO-GRP
+ AND K300 /WITH OLD, IF ANY
+ SNA
+ JMP RDL16 /GRP0 OK WITH ANYTHING
+ DCA TEM1 /NEW IS NOT 0
+ TAD MGRP /CK OLD MGP, IF ANY
+ SNA /THERE IS ONE
+ JMP RDL15 /0 OK WITH ANY NEW
+ CIA /COMPARE OLD
+ TAD TEM1 /WITH NEW
+ SZA CLA /SAME-OK
+ IERROR /ILLEGAL COMBINATION
+RDL15, TAD TEM1 /MICRO-GRP=NEW
+ DCA MGRP
+RDL16, TAD VAL /OR NEW VALUE INTO OLD OP
+ CMA /NOT A
+ AND OP /AND B
+ TAD VAL /+A
+ DCA OP /=A OR B
+ TAD USE /GET NEW SKIP BIT
+ AND K20
+ SZA CLA /NON-SKIP
+ ISZ SK /SET SKIP FLAG
+ JMS I GETSYM /GET NEXT INSTR OF STRING
+ JMP RDL17 /NONE THERE - END OF SRTING
+ JMP RDL13 /SYMBOL (AS EXPECTED)
+ NOP /CONST, ILLEGAL
+ IERROR /LIT ILLEGAL
+RDL17, ISZ UMIC /SET MICRO INST FLAG
+ JMP RDL5 /SKIP TO END OF LINE
+IBTI, II
+MGRP=UMIC
+RLNP, RLN
+PB0, PBSS2
+K4440, 440
+K300, 300
+WHATPP, WHATYP
+M243, -243
+
+/NULL LINE OR COMMENT
+
+RDL11, JMS I SKIPL
+ JMP I NULLP
+
+/PSUEDO-OP
+
+RDL18, TAD VAL /GET PSUEDO-OP ADDRESS
+ DCA TEM1 /STORE PTR
+ JMP I TEM1 /TO PROPER PSUEDO-OP HANDLER
+
+\f*2200
+/
+/END OF LINE PROCESSOR FOR COLLECTION PHASE
+/LOOKS FOR SEMI-COLON BEFORE A SLASH
+/STAR OR SLASH OR 000 (CR) MEANS NORMAL
+/END OF LINE. SEMI-COLON MEANS WE MUST
+/SAVE CURRENT ADDRESS IN LINE BUFFER FOR
+/START OF "NEXT" LINE.
+/THIS ROUTINE ALSO HAS THE IMPORTANT
+/FUNCTION OF WATCHING THE FORTR PSUEDO-OP
+/FLAG. IF FLAG IS ON L72 CAUSES LINE
+/TO BE TREATED AS NON-EXISTENT. L72 MUST
+/BE CALLED FOR EVER INSTR. LINE OR PSUEDO-OP
+/LINE (EXCEPT END, PAUSE, FORTR) BEFORE
+/ACTUAL PROCESSING OF THAT LINE BEGINS.
+/
+L72, 0
+ SKP
+ JMS I GETCHR
+ JMS I TEST
+ SL6-1
+ BL7-SL6
+ IERROR
+L72S, TAD X0
+ DCA SCOLON
+L72X, TAD FORFLG /IF FLG=1 WE ARE SKIPPING
+ SMA SZA CLA /1ST HALF OF FORTRAN OUTPUT
+ JMP I DCIL1
+ JMP I L72
+
+/KLUDGE TO RESET ILC BECAUSE A1 COMES BEFORE UDPAGE IN PASS 2
+
+FIXILC, 0
+ TAD PASS
+ SNA CLA
+ JMP I FIXILC
+ TAD PAG
+ DCA ILC
+ JMP I FIXILC
+
+
+
+/
+/COLLECTION PHASE ROUTINE
+/SEARCH PAGE SYMBOL TABLE FOR SYMBOL
+/CALLING SEQUENCE: (ASSUMES SYM.ID.IS IN "SYMBOL")
+/ JMS SPSTB
+/ RETURN IF NOT FOUND (HAD TO ENTER IT)
+/ RETURN IF FOUND
+/THE SEARCH IS AT L31; ENTERING DONE BY L32.
+/
+SPSTB, 0
+ TAD PSTSZE /SIZE OF PST
+ SZA /IS IT EMPTY
+ JMP L31 /NO
+L32, TAD PSTSZE /IS PST FULL?
+ TAD PSTMAX
+ SMA CLA
+ SERROR /YES
+ TAD PSTSZE /SIZE OF PST*2
+ RAL CLL
+ TAD PSTBSE /+BASE
+ DCA PSTSPR /GIVES POINTER TO SYMBOL
+ ISZ PSTSZE / INCREMENT COUNTER
+ TAD SYMBOL /PHYSICALLY MOVE SYMBOL
+ DCA I PSTSPR
+ TAD PSTSPR
+ IAC /ADD 1
+ DCA PSTCPR /FOR CODE WORD POINTER
+ TAD PASS
+ SNA CLA
+ JMP L32A /ASSEMBLY: JUST ZERO CODE WORD
+ JMS I OBSYM /LISTING
+ SYMBOL
+ TAD VAL /CK IF SYM IS ON PAGE FORWARD REF.
+ AND K7600 /EXTRACT PAGE BITS
+ CIA
+ TAD PAG
+ SZA CLA
+ JMP L32A /NOT ON PAGE
+ TAD K4000 /ON PAGE: SET DEFINED BIT
+ ISZ SPSTB /& SET FOR "FOUND" RETURN
+L32A, DCA I PSTCPR
+ JMP I SPSTB /NOT FOUND
+/
+L31, CIA /PLACE - COUNT OF TABLE
+ DCA TEM1 /IN INDEX LOC
+ TAD PSTBSE /PLACE TABLE BASE
+ DCA TEM2 /IN ADDRESS LOC
+L31B, TAD I TEM2 /-SYMBOL
+ CIA
+ TAD SYMBOL /+ REQUESTED SYMBOL
+ SNA CLA
+ JMP L31A /FOUND
+ ISZ TEM2 /NOT FOUNE ... INCREMENT ADDRESS
+ ISZ TEM2
+ ISZ TEM1 /OVER
+ JMP L31B /NO ... TRY AGAIN
+ JMP L32 /YES ... PLACE ON TABLE
+L31A, ISZ SPSTB /FOUND ... INDEX FOR EXIT
+ TAD TEM2 /POINTER TO SYMBOL
+ DCA PSTSPR /TO PROPER LOC
+ TAD PSTSPR /SYMBOL POINTER
+ IAC /+1
+ DCA PSTCPR /GIVES CODE POINTER
+ JMP I SPSTB /EXIT
+/
+PSTMAX, -100 /MUST BE (PSTB-PTB)/2
+
+
+
+/
+/OUTPUT 6 CHARACTER ASCII NAME
+/TO BINARY TAPE
+/FOR EXTERNAL SYMBOL DEFN.
+/USED BY LFSCK (FOR RC=03) & 666 (FOR RC=17)
+/OUTPUT GOES VIA TYPE PTR, BUT PTR IS
+/CHANGED TO L66E SO CHAR CAN BE PUNCHED
+/& ADDED TO CK.SUM INSTEAD OF TYPED.
+/668 IS USED ONLY IN PAS1-
+/ASSEMBLY PHASE1
+/
+L68, 0
+ TAD PASS
+ SZA CLA
+ JMP I L68 /EXIT IF LISTING
+ TAD L66B /FOOL OUTPUT ROUTINE
+ DCA TYPE /SO IT THINKS PUNCH IS TTY
+ DCA S1
+ DCA S2
+ DCA S3
+ TAD AS0
+ DCA X1
+ TAD SYMBOL /MST SYMBOL ADDRESS - 1
+ DCA X2 /TO AUTO X2
+ TAD USE /MST USE WORD
+ AND K3 /SYMBOL LENGTH
+ CIA
+ DCA TEM4 /-WORDS TO LOC
+ CDF 00
+ TAD I X2 /OBTAIN SYMBOL
+ CDF 10
+ DCA I X1
+ ISZ TEM4
+ JMP .-5
+ TAD AS0
+ DCA X2
+ TAD M3
+ DCA TEM4
+ TAD I X2
+ JMS I CTYPE /PUNCH IT EXPANDED
+ ISZ TEM4 /MORE
+ JMP .-3 /YES
+ TAD L66D /RESTORE TYPE ROUTINE
+ DCA TYPE
+ JMP I L68
+/
+/ DUMMY TYPE ROUTINE FOR EST TV DEFINITION
+/
+T8=SPSTB /SCRATCH LOC
+L66E, 0
+ DCA T8 /SAVE CHAR
+ TAD T8
+ TAD CSUM /ADD CHAR TO BINARY CHECK SUM
+ DCA CSUM
+ TAD T8
+ JMS I PUNCH /OUTPUT CHAR ON BINARY TAPE
+ JMP I L66E /RETURN
+L66B, L66E
+L66D, L64
+
+
+/
+/INITIALIZATION THAT WONT FIT IN "INITA"
+/
+INITMR, 0
+ DCA I VALPTP
+ DCA I LLFSP
+ DCA LINE
+ JMP I INITMR
+VALPTP, VALPTR
+LLFSP, LLFS
+
+\f*2400
+
+
+/
+/COLLECTION PHASE ROUTINE.
+/SEARCH LITERAL TABLE FOR VALUE IN S0.
+/PLACES LITERAL ON TABLE IS NOT THERE.
+/OTHERWISE DOES NOTHING.
+/
+SLTAB, 0
+ CLA
+ TAD LTSZE /SIZE OF TABLE
+ SZA /IS TABLE EMPTY
+ JMP SLITB1 /NO ... SEARCH IT
+ TAD LTBSE /BASE COLL. PHASE LIT. TABLE)
+ TAD LTSZE /+DISPLACEMENT
+ DCA TEM1 /GIVES ADDRESS POINTER
+ TAD S0 /PHYSICALLY MOVE LITERAL
+ CDF 00
+ DCA I TEM1
+ ISZ LTSZE /INCREMENT COUNT
+ CDF 10
+ JMP I SLTAB /RETURN
+SLITB1, CIA /PLACE - COUNT
+ DCA TEM1
+ CMA
+ TAD LTBSE /LTBSE-1
+ DCA X1 /TO AUTO X1
+SLITB2, CDF 00
+ TAD I X1 /-TABLE
+ CDF 10
+ CIA
+ TAD S0 /+REQUESTED LITERAL
+ SNA CLA /SAME
+ JMP I SLTAB /YES, RETURN
+ ISZ TEM1 /MORE SYMBOLS TO TEST
+ JMP SLITB2 /YES
+ JMP SLTAB+5 /NO
+
+
+/
+/COLLECTION PHASE EQUIVALENCE PROCESSOR
+/(FORMERLY CALLED BSS0 PROCESSOR)
+/ENTERS SYMBOL ID. IN EQ. TAB
+/
+PBSS2, JMS I SKIPL
+ TAD LFS /LOCATION FIELD SYMBOL
+ SNA CLA /IS THERE ANY
+ JMP I NULLP /NO
+ CDF 00
+ TAD BSSSW /ARE WE PROCESSING A BSS 0 SEQUENCE
+ SZA CLA
+ JMP .+5 /YES ... SKIP INITIALIZING
+ TAD EQVIPR /NO ... INITIALIZE
+ DCA CTPTR /SET INPUT POINTER TO COUNT LOCATION
+ DCA I CTPTR /ZERO COUNT
+ ISZ EQVIPR /INCREMENT INPUT POINTER
+ TAD LFS /LOCATION FIELD SYMBOL
+ DCA I EQVIPR /PLACE LFS ON EQUIVALENCE TABLE
+ ISZ I CTPTR /INCREMENT COUNT
+ CDF 10
+ JMS I ICPLFS /PROCESS IT FOR COLLECTION
+ CLA CMA /REMOVE LFS FROM LFS TABLE
+ TAD LFSPTR
+ DCA LFSPTR
+ ISZ BSSSW /SET BSS 0 IN PROGRSS SWITCH
+ CMA /REMOVE EXTRA LFS BIT
+ TAD I PTCPR
+ AND K7577X /REMOVE EXTRA BSS0 BIT
+ TAD K200 /PLACE BSS0 BIT ON PT
+ DCA I PTCPR
+ TAD PSTCPR /SAVE PST ADDRESS IN CASE NEXT LINE OVERFLOWS
+ DCA EQVBIT
+ ISZ EQVIPR /INCREMENT POINTER
+ JMP I NULLP /EXIT FOR NEXT LINE
+CTPTR, EQUTB
+LFSBSI, LFSBSS
+K7577X, 7577
+
+/
+/ASSEMBLY PHASE EQUIVALENCE PROCESSOR
+/EXTRACTS ENTIRE GROUP OF TAGS EQUIVALENCED
+/TO SAME ADDRESS FROM TABLE & DEFINES
+/THEM BY USING LFSCK FROM LFSBSS ON.
+/
+ANUMCK, 0
+ TAD I PTCPR /PT CODE WORD
+ AND K200 /MASK OUT BSS 0 BIT
+ SNA CLA /IS IT A BSS 0 SYMBOL
+ JMP I ANUMCK /NO ... EXIT
+ CMA
+ DCA BANK /BANK UNKNOWN
+ TAD AANUM7 /CHEAT RETURN ADDRESS
+ DCA I LFSCHK /SO IT LOOKS LIKE A JMS FROM SOMEWHERE ELSE
+ JMS GNEQ /GET COUNT
+ CIA /NEGATE
+ DCA OPICTR /SAVE IN INDEX LOC
+ JMS GNEQ /GET SYMBOL
+ JMP I LFSBSI /PROCESS SYMBOL
+ANUM7, JMS I SPSTAB /SET DEFINED BIT ON PST IN CASE
+ NOP /THIS WAS CARRIED OVER
+ JMS I PSTD /THE LAST PAGE
+ ISZ OPICTR /ANY MORE ?
+ JMP ANUM7-2 /YES
+ JMP I ANUMCK /EXIT
+PSTD, PSTDEF
+AANUM7, ANUM7
+/
+/ ROUTINE TO GET NEXT ITEM OFF EQUIVALENCE TABLE
+/
+GNEQ, 0
+ CDF 00
+ TAD I EQVOPR
+ ISZ EQVOPR
+ CDF 10
+ JMP I GNEQ
+/
+/SUBR. TO LIST A LINE IF IN PASS 2
+/
+/CALLING SEQUENCE: JMS I WRITEP
+/ JMS I OUTBIN
+/ LOCATION OF WORD TO OUTPUT
+/ CONSTANT=RELOC. CODE
+/ RETURN
+/(CALL TO OUTBN MUST ALWAYS FOLLOW CALL
+/TO WRITE.)
+/ASSUMES CURRENT PC IS IN "ILC"
+/SETS FLAGS FOR PROPER LISTING
+/& CALLS WLN TO DO THE DRUDGE WORK.
+/
+WRITE, 0
+ TAD PASS
+ SNA CLA
+ JMP I WRITE /PASS 1
+ ISZ WRITE
+ TAD I WRITE /ADDRESS OF VALUE
+ DCA VALUE
+ TAD I VALUE /GET VALUE
+ DCA VALUE
+ ISZ VFLG
+ ISZ WRITE
+ TAD I WRITE /GET RELOC. CODE
+ DCA CODE
+ TAD CODE
+ SNA
+ JMP WRITE2
+ RTR /CONVERT TO 6BIT
+ RAR
+ AND K7
+ TAD K60
+ CLL RTL
+ RTL
+ RTL
+ DCA ADDRES /TEM SAVE
+ TAD CODE
+ AND K7
+ TAD K60
+ TAD ADDRES
+ DCA CODE
+WRITE2, TAD ILC /CURRENT ADDRESS
+ DCA ADDRES
+ ISZ AFLG
+ ISZ LFLG
+ JMS I WLNP /LIST
+ ISZ WRITE
+ JMP I WRITE
+K60, 60
+OPICTR=WRITE
+CDZSKP, JMS CDZSK
+\f*2600
+/
+/ BLOCK PSEUDO OPERATOR
+/
+PBSS, JMS I GETSYM /GET NEXT INPUT ITEM
+ JMP I PBSS2I /NOTHING THERE (BSS 0)
+ SKP /SYMBOL
+ SKP CLA /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ JMS I IPSHIN /SAVE ALL CURRENT INFO
+ JMP I PBSS4I /CHECK BLOCK SIZE
+PBSS5, JMS IFFSUB /CAN THIS FIT IN CORE
+ SKP CLA /YES
+ JMS I INI /NO ... INITIALIZE PT POINTERS
+ JMS I IPOPIN /POP CURRENT INFORMATION
+ DCA BSSSW /CLEAR BSS0 SWITCH
+ JMS I ICPLFS /PROCESS CURRENT LFS
+ TAD S0 /-BLOCK CONSTANT
+ CIA
+ DCA TEM12 /TO INDEX LOCATION
+PBSS1, TAD K30 /PAR CONSTANT PT BIT STRUCTURE
+ TAD I PTCPR /DONT LOSE LFS AND BSS 0 INFORMATION
+ DCA I PTCPR
+ JMS I ASMIF /DO THEM INDIVIDUALLY IF PASS 2
+ ISZ TEM12 /MORE
+ JMP PBSS1 /YES
+ JMP I POPEXP /EXIT TO GET NEXT LINE
+PBSS2I, PBSS2
+TEM12, 0 /RESRV STORAGE CTR
+PBSS4I, PBSS4
+
+/
+/ CPAGE PSEUDO OPERATION
+/
+PIFF, JMS I GETSYM /GET NEXT INPUT ITEM
+ NOP /NONE THERE
+ SKP /SYMBOL
+ SKP CLA /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ JMS I WLNIF /LIST IF PASS 2
+ TAD S0 /BINARY CONSTANT
+ JMS IFFSUB /USE GLOBAL IFF SUBROUTINE
+ JMP I DCIL1 /DIDNT HAVE TO ASSEMBLE PAGE
+ JMP I RSTRTI /GO INITIALIZE
+/
+/ IFF SUBROUTINE
+/ CALL IS TAD PAGE INCREMENT
+/ JMS IFFSUB
+/ OK RETURN
+/ HAD TO ASSEMBLE PAGE RETURN
+
+/FUNCTION: TO SEE IF GIVEN NO. OF WORDS
+/WILL FIT ON CUR. PAGE; IF SO, RETURN
+/AT OK RET.; OTHERWISE ASSEMBLE PAGE WE
+/HAVE NOW & INIT A NEW PAGE & RET. AT
+/SECOND RET. LOC.
+/IFFSUB IS USED BY CPAGE,BLOCK &
+/SEVERAL OTHER P-OPS
+/
+/
+IFFSUB, 0
+ DCA TEM1 /SAVE INCREMENT
+ JMS I ICPGES /COMPUTE PAGE SIZE
+ TAD TEM1 /ADD INCREMENT
+ TAD M201 /IS TOTAL .GT. PAGE SIZE (1 EXTRA BECAUSE
+ SPA SNA CLA /PTSZE INCREMENTED BEFORE PSUEDO-OP
+ JMP I IFFSUB /NO ... RETURN
+ CLA CMA /YES ... DECREMENT PAGE TABLE SIZE
+ TAD PTSIZ
+ SNA /WATCH FOR AN EMPTY PAGE
+ JMP .+4 /LEAVE THINGS ALONE IF PAGE EMPTY
+ DCA PTSIZ
+ JMS I L55I /ASSEMBLE THE PAGE
+ JMS I UPDATE
+ JMS I FIXIL
+ ISZ IFFSUB /INCREMENT FOR EXIT
+ JMP I IFFSUB /RETURN
+IPSHIN, PUSHIN
+IPOPIN, POPIN
+WLNIF, WLNIF1
+ASMIF, ASMIF1
+RSTRTI, RSTRT
+UPDATE, UDPAGE
+ICPGES=CPGESI
+M201, -201
+FIXIL, FIXILC
+
+
+/ ERROR ROUTINE
+/
+K6200, 6200
+FATAL, 0
+
+ERRE, TAD K6200 /0500
+ERRS, ISZ FATAL /SET FATAL ERROR SWITCH
+ TAD K600 /2300
+ JMP .+3
+ERRM, TAD LFS
+ DCA I LLFSI
+ TAD K400 /1500
+ERRI, TAD K600 /1100
+ERRC, TAD K200 /0300
+ERRA, TAD K100 /0100
+ DCA EFLG
+ TAD PASS
+ SZA CLA
+ JMP ERREX /LISTING PASS
+ JMS I CRLF /TYPE CRLF
+ TAD EFLG /TYPE E#
+ JMS I CTYPE
+ TAD AT
+ JMS I CTYPE
+ JMS I CTYPE /TYPE 2 SPACES
+ TAD I LLFSI
+ DCA INDEX
+ CDF 00
+ TAD I INDEX
+ ISZ INDEX
+ AND K3
+
+ CMA
+ DCA COUNT
+ TAD M3 /SET 6 CHAR PRINT CTR
+ DCA MSCTR
+ ISZ COUNT
+ SKP /NOT DONE YET WITH SYMBOL
+ JMP ERR1 /DONE : SEE IF SPACES NEEDED
+ CDF 00
+ TAD I INDEX
+ CDF 10
+ ISZ INDEX
+ JMS I CTYPE /TYPE THE LETTERS OR SPACES
+ ISZ MSCTR
+ JMP .-11
+ERR11, TAD SPPLUS /TYPE SPACE +
+ JMS I TYPE
+ TAD LINE /TYPE LINS FROM LAST LFS
+ JMS I OTYPE
+ JMS I CRLF
+ERREX, TAD FATAL /FATAL ERROR?
+ SNA CLA
+ JMP .+3 /NO
+ HLT
+ JMP I K200 /IF YES GO TO START AFTER HALT
+ TAD PHASE /WHAT PHASE ARE WE IN
+ SZA CLA
+ JMP I ERR2 /ASSEMBLY
+ JMP I NULLP /COLLECTION
+ERR2, ASM02R
+
+LLFSI, LLFS
+INDEX=S1
+COUNT=S2
+MSCTR=S3
+AT, 0124
+SPPLUS, 253
+
+ERR1, JMS I CTYPE /FILL OUT THE REST WITH SPACES
+ ISZ MSCTR
+ JMP .-2
+ JMP ERR11
+
+\f*3000
+
+/
+/ASSEMBLY PHASE ROUTINE TO CHECK FOR A
+/LOC. TAG (LFS) & PROCESS IF FOUND.
+/FUNCTION: (ASMBLY PHASE 1 - ACTR=0)
+/ (1) DEFINE TAG
+/ (2) OUTPUT VALUE AT PAST OCCURANCES OF
+/ FORWARD REF. TO THIS TAG
+/ (3) CONDENSE OCC. TAB IF POSSIBLE.
+/
+/ (ASMBLY PHASE 2 - ACTR=1
+/ (THIS INCLUDES ALL OF PASS 2 AS
+/ ACTR STAYS=1 IN PASS 2)
+/ (1) OUTPUT EXT. SYM. DEFN. ON REL-TAPE
+/
+
+LFSCK, 0
+ TAD I PTCPR /PT CODE WORD
+ RAR
+ SNL CLA /IS THERE A LFS
+ JMP I LFSCK /NO ... RETURN
+ CMA
+ DCA BANK /BANK UNKNOWN
+ TAD PASS /MOVE BACK PTR IF IN LISTING PASS
+ CIA
+ TAD LFSPTR
+ DCA LFSPTR
+ CDF 00
+ TAD I LFSPTR /ACTUAL LFS
+ CDF 10
+ ISZ LFSPTR
+LFSBSS, DCA LFS
+ JMS I OBSYM /OBTAIN LFS FROM MST
+ LFS
+ TAD ACTR /WHICH TIME ARE WE ASSEMBLING THIS PAGE
+ /ACTR REMAINS 1 DURING PASS2
+ SZA CLA
+ JMP L67 /SECOND TIME: NO TEST
+ TAD USE /CK FOR MULTI DEF.
+ AND K400
+ SZA CLA
+ MERROR /YES
+ JMP LFSCK1
+L67, TAD USE /MST USE WORD
+ AND K200 /(L67 HAS NO EFFECT IN PASS 2)
+ SNA CLA /IS IT AN ENTRY
+ JMP LFSCK1 /NO
+/
+/ EXTERNAL SYMBOL DEFINITION
+/
+ JMS I OUTBIN /OUTPUT BINARY DEFINITION
+ ILC
+ 3
+ JMS I L68I /PUNCH SYMBOL ON TAPE
+LFSCK1, TAD ILC /CUR ILC
+ DCA VAL /PLACE ON MST AS DEFINITION
+ TAD USE /SYMBOL TABLE USE WORD
+ AND K7377 /MASK OUT DEFINED BIT
+ TAD K400 /ADD IN DEFINED BIT
+ DCA USE /SYMBOL IS NOW DEFINED IN MST
+/
+/ NOW LETS SEARCH OCCURANCE TABLE TO SEE IF WE
+/ CAN CLEAR OFF A FEW
+/
+ TAD OTP /SIZE OF OCCURANCE TABLE
+ CMA
+ TAD TOPCOR
+ SNA
+ JMP I LFSCK /RETURN IF EMPTY
+ CIA
+ DCA TEM1 /PLACE - SIZE IN INDEX LOC
+ TAD OTP /PLACE TABLE BASE IN TEM2
+ DCA TEM2 /TEM2=PTR TO SYMBOL
+ CDF 00
+L51, DCA L51FLG /CLR # SWITCH
+ ISZ TEM2
+ CMA /CK 1ST WORD FOR # FLAG
+ TAD I TEM2
+ SZA CLA
+ JMP .+4 /NO
+ ISZ L51FLG /YES, SET SWITCH
+ ISZ TEM2 /MOVE PTR & CTR
+ ISZ TEM1 /PAST EXTRA WORD
+ TAD I TEM2 /- OCCURRING SYMBOL
+ CIA
+ TAD SYMBOL /+SYMBOL JUST DEFINED
+ SNA CLA /ARE THEY EQUAL
+ JMP .+7
+ ISZ TEM2
+L51E, ISZ TEM1 /NO ... ARE THERE MORE
+ ISZ TEM1 /(2 WORDS PER OCCURRANCE)
+ JMP L51 /YES
+ CDF 10
+ JMP I LFSCK /NO ... RETURN
+/
+/ AN OCCURANCE FOUND ... OUTPUT IT
+/
+ ISZ TEM2
+ TAD I TEM2 /ACTUAL ADDRESS
+ CDF 10
+ DCA TEM4
+ JMS I DUMMY /OUTPUT ADDRESS AS ORIGIN
+ TEM4
+ 4
+ TAD VAL
+ TAD L51FLG /ADD 1 IF # REF
+ DCA TEM4
+ JMS I DUMMY /OUTPUT SYMBOL VALUE AS RELOCATABLE DEF
+ TEM4
+ 1
+ CDF 00
+/
+/ NOW MOVE OCCURANCE TABLE UP 2
+/
+L51G, TAD OTP
+ DCA TEM4 /SAVE
+ TAD TEM2
+ DCA OTP /RESET
+ TAD L51FLG
+ TAD K2
+ CIA
+ TAD TEM2
+ CIA
+ TAD TEM4
+ SNA
+ JMP L51E /NOTHING TO MOVE
+ DCA TEM3 /CTR FOR MOVE UP
+ TAD TEM3
+ CIA
+ TAD TEM4
+ DCA TEM4 /TO PTR
+L51J, TAD I TEM4
+ DCA I OTP
+ CMA
+ TAD TEM4
+ DCA TEM4
+ CMA
+ TAD OTP
+ DCA OTP
+ ISZ TEM3
+ JMP L51J
+ JMP L51E
+
+
+L68I, L68
+K7377, 7377
+TOPCOR, CORE1
+MERROR=JMP I .
+ ERRM
+
+/
+/ PUNCH ROUTINE
+/
+L63, 0
+ PLS /SELECT IT
+ PSF /WAIT FOR PUNCH
+ JMP .-1
+ CLA /EXIT WITH CLEAR AC
+ JMP I L63
+
+
+
+
+/
+/UPDATE "PAGE" TO NEXT CORE PAGE
+/I.E., PAGE =PAGE+200
+/
+UDPAGE, 0
+ CLA
+ TAD PAG /OLD PAGE SETTING
+ TAD K200 /+SIZE OF ONE PAGE
+ DCA PAG /FOR NEW PAGE SETTING
+ JMP I UDPAGE /EXIT
+
+L51FLG=UDPAGE
+\f*3200
+/
+/ SUBROUTINE TO OUTPUT ASSEMBLY PHASE LITERAL
+/ TABLE AND REMEMBER OCCURANCES
+/
+OAPLT, 0
+ TAD ACTR /SKIP IT THE 1ST TIME
+ SNA CLA
+ JMP I OAPLT
+ JMS I SAVLNI /PREVENT ANY LINE TYPEOUT
+ TAD LITSIZ /SIZE OF TABLE
+ SNA
+ JMP I OAPLT /RETURN IF NONE
+ CIA
+ DCA ATEM1 /PLACE - SIZE IN LOC
+ CLA CMA
+ TAD LITBSE /BASE - 1
+ DCA X2 /TO AUTO 12
+ TAD APMSW /ARE WE IN AUTO PAGING MODE
+ SZA CLA
+ JMP .+3 /NO ... OK
+ TAD PGEESC /YES ... SUBRTACT SIZE OF PAGE ESCAPE
+ RAR CLL /DIVIDED BY 2
+ TAD LITSIZ /& SUBTR. LITSIZ
+ CIA
+ DCA LITPTR /TEM SAVE
+ TAD LITPTR
+ TAD PAG /INITIALIZE PAGE ADDRESS
+ TAD K200
+ DCA ILC
+ TAD LITSIZ /INIT LIT TBL PTR
+ CLL RAL /(MULT BY 2)
+ TAD LITBSE
+ DCA LITPTR
+ IAC
+ SKP
+/
+L52, ISZ ILC /INC PAGE LOC
+ TAD M3 /DECREMENT LIT TBL PTR
+ TAD LITPTR
+ DCA LITPTR
+ CDF 00
+ TAD I LITPTR /CODE
+ DCA ATEM2
+ ISZ LITPTR
+ TAD I LITPTR /SYMBOL OR LITERAL
+ DCA ATEM3
+ CDF 10
+ CLA CMA
+ TAD ATEM2 /IS CODE 1 ... LITERAL
+ SZA CLA
+ JMP L53 /NO ... SYMBOL
+ JMS I ILC4P /YES ... OUTPUT PAGE ADDRESS AS ORIGIN
+ JMS I WRITEP
+ JMS I OUTBIN /OUTPUT LITERAL WITH NO RELOCATION
+ ATEM3
+ 0
+L52A, ISZ ATEM1 /MORE
+ JMP L52 /YES
+ ISZ ILC /SET FOR ESCAPE
+ JMP I OAPLT /NO ... RETURN
+L53, JMS I OBSYM /OBTAIN SYMBOL FROM MST
+ ATEM3
+ TAD USE /MST USE WORD
+ AND K400 /IS SYMBOL DEFINED
+ SNA CLA
+ JMP L53A /NO ... OCCURANCE
+ JMS I ILC4P /YES ... OUTPUT ORIGIN
+ TAD ATEM2
+ AND K4
+ SZA CLA
+ IAC /ITS A #
+ TAD VAL /ACTUAL VALUE
+ DCA ATEM3 /TO DIRRECTLY ADDRESSABLE LOC
+ JMS I WRITEP
+ JMS I OUTBIN /OUTPUT VALUE
+ ATEM3
+ 1 /RELOCATABLE
+ JMP L52A /TRY MORE
+L53A, TAD ILC
+ DCA ATEM4
+ JMS L53B /PLACE ON OCCURANCE TALBE
+ JMP L52A /TRY MORE
+/
+/ SUBROUTINE TO CREATE AN OCCURANCE IN OCCURANCE TABLE
+/
+L53B, 0
+ TAD OTP
+ CIA CLL
+ IAC /ALLOW FOR # FLAG
+ TAD STT /+TOP OF MST
+ SZL CLA /OVERFLOW?
+ SERROR /YES ... OUT OF CORE
+ TAD M2
+ TAD OTP /OT SIZE - 2
+ DCA OTP /GIVES ADDRESS ON OCCUR TABLE
+ TAD OTP
+ DCA X1
+ CDF 00
+ TAD ATEM3 /SYMBOL
+ DCA I X1 /TO OCCUR TABLE
+ TAD ATEM4 /PAGE ADDRESS
+ DCA I X1 /TO OCCUR TABLE
+ TAD ATEM2 /CK FOR #
+ AND K4
+ SNA CLA
+ JMP .+6 /NO
+ IAC /SET FLAG WORD
+ DCA I OTP
+ CMA /MOVE DOWN PTR
+ TAD OTP /PAST EXTRA WORD
+ DCA OTP
+ CDF 10
+ JMP I L53B /TRY MORE
+/
+ATEM1, 0
+ATEM2, 0
+ATEM3, 0
+ATEM4, 0
+SAVLNI, SAVLIN
+LITPTR, 0
+
+PFORT, ISZ FORFLG /SET TO 1 FOR 1ST PASS THRU FORTRAN CODE
+ NOP /END PSUEDO SETS IT TO -1 TO NULLIFY
+ JMS I SKIPL /SO BACK TO 0 FOR 2ND PASS
+ JMP I NULLP
+
+/
+/DO SOME WORK FOR L61A
+/
+L61C, DCA TEM2 /SAVE 6-BIT CODE
+ TAD TEM2
+ AND K40
+ SNA CLA
+ TAD K100 /ADD CORRECT LEADING BITS
+ TAD K200
+ TAD TEM2 /ADD CHAR BITS
+ JMP I L61DP
+L61DP, L61D
+ILC4P, ILC4
+
+\f*3400
+/
+/ ROUTINE TO PUNCH WORD AND RELOCATION BITS ON TAPE
+/ CALL IS
+/ JMS OUTBN
+/ ADDRESS OF WORD
+/ BITS
+/
+OUTBN, 0
+ CLA CLL
+ TAD I OUTBN /ADDRESS OF WORD
+ DCA OUT1
+ ISZ OUTBN
+ TAD I OUTBN /RELOCATION BITS
+ RTL /SHIFT LEFT 4
+ RTL
+ DCA OUT2 /SAVE
+ TAD PASS
+ SZA CLA
+ JMP OUTEX
+ TAD I OUT1 /ACTUAL WORD
+ DCA OUT1 /MUST DO THIS SINCE WE DO A JMS OUTBN;CSUM;10
+ TAD OUT1 /AT LOC. PCSM, AND OTHERWISE CSUM WOULD CHANGE AFTER CALL TO SUM.
+ RTL /ROTATE HIGH 4 BITS TO LOW
+ RTL
+ RAL
+ AND K17 /MASK
+ TAD OUT2 /ADD REL BITS
+ JMS SUM /ADD TO CHECK SUM
+ JMS I PUNCH /PUNCH IT
+ TAD OUT1 /REMAINDER OF WORD
+ AND K377 /MASK TO 8 BITS
+ JMS SUM /ADD TO CHECK SUM
+ JMS I PUNCH /PUNCH IT
+OUTEX, ISZ OUTBN /INDEX FOR EXIT
+ JMP I OUTBN /RETURN
+SUM, 0
+ DCA TSUM
+ TAD CSUM
+ TAD TSUM
+ DCA CSUM
+ TAD TSUM
+ JMP I SUM
+TSUM=NSGN
+OUT1=IB
+OUT2=TEM5
+K377, 377
+K17, 17
+/
+/ ROUTINE TO SEARCH ASSEMBLY PHASE LITERAL TABLE
+/ FOR 2 WORD ENTRY IN S0-S1
+/ PLACES ON TABLE IF NOT THERE
+/ RETURNS PAGE ADDRESS IN AC
+/
+SRALT, 0
+ CLA
+ DCA TEM2 /ZERO SEARCH COUNTER
+ CDF 00
+ TAD LITSIZ /NO OF ENTRYS
+ SZA
+ JMP L40 /NON ZERO ... SEARCH
+L39, TAD LITSIZ /NO OF ENTRYS - 1
+ RAL CLL /MULTIPLY BY 2
+ TAD LITBSE /ADD BASE OF TABLE
+ DCA TEM1 /GIVES ADDRESS OF NEW ENTRY
+ ISZ LITSIZ /INCREMENT COUNT
+ TAD S0 /FIRST WORD
+ DCA I TEM1 /TO TABLE
+ ISZ TEM1 /INCREMENT ADDRESS
+ TAD S1 /SECOND WORD
+ DCA I TEM1 /TO TABLE
+ TAD LITSIZ /ENTRY NO
+
+/ COMPUTE PAGE ADDRESS FROM DISPLACEMENT IN TABLE
+/ AND STATUS OF AUTOMATIC PAGING MODE SWITCH AND SIZE OF PAGE
+/ ESCAPE REQUIRED
+/
+L40A, DCA TEM1 /SAVE LOCATION IN TABLE
+ TAD PASS
+ SZA CLA
+ JMP L40C /LISTING
+ TAD APMSW /ARE WE IN AUTOMATIC PAGING MODE?
+ SNA CLA
+ TAD PGEESC /YES - COUNT ESCAPE WORDS
+L40DR, CLL RAR /(OVER 2)
+L40D, TAD TEM1 /NO ... COMPUTE PAGE ADDRESS
+ CIA /BY STRAIGNT COMPLEMENTATION METHOD
+ AND K377 /MASK
+ CDF 10
+ JMP I SRALT /EXIT
+ /FOR AUTO PAGING MODE
+
+L40, CIA
+ DCA TEM1 /- NO OF ENTRYS TO LOC
+ CLA CMA
+ TAD LITBSE /BASE OF TABLE - 1
+ DCA X1 /TO AUTO 10
+L41, ISZ TEM2 /INCREMENT SEARCH COUNTER
+ TAD I X1 /- FIRST WORD FROM TABLE
+ CIA
+ TAD S0 /+FIRST COMP WORD
+ SZA CLA
+ JMP L40B /NO MATCH
+ TAD I X1 /-SECOND TABLE WORD
+ CIA
+ TAD S1
+ SZA CLA
+ JMP .+4 /NO MATCH
+ TAD TEM2 /MATCH ... CTR TO AC
+ JMP L40A /RETURN
+L40B, ISZ X1 /INCREMENT FOR NO SECOND COMPARISON
+ ISZ TEM1 /OVER
+ JMP L41 /NO ... TRY MORE
+ JMP L39 /YES ... PLACE ON TABLE
+L40C, CDF 10
+ TAD I REDUCP /GET PAGE ESC COMPUTED BY A1
+ JMP L40DR
+REDUCP, REDUCE
+
+/
+/ HAS COMMON BEEN PUNCHED YET SUBROUTINE
+
+/IF IT HAS ALREADY BEEN PUNCHED, EXIT
+/IF NOT, PUNCH IT & SET FLAG
+/THIS ROUTINE IS CALLED ONLY ONCE PER PROGRAM
+/BUT IT COULD BE CALLED FROM ANY OF SEVERAL PLACES
+/
+HCBPS, 0
+ TAD CPSW /COMMON PUNCHED SWITCH
+ SNA CLA /HAS IT BEEN PUNCHED
+ JMP I HCBPS /YES ... RETURN
+ DCA CPSW /NO ... CLEAR SWITCH
+ JMS I OUTBIN /AND PUNCH HIGHEST COMMON ASSIGNED
+ HICOM
+ 12
+ JMP I HCBPS /EXIT
+
+DUMSUB, JMS DUMS
+
+
+/
+/INCREMENT PAGE TABLE PTRS
+/TO PREPARE FOR NEXT INSTRUCTION (OR PARAMETER)
+/
+INCPT, 0
+ ISZ PTSZE /INCREMENT PAGE TABLE SIZE
+ JMS I ISZPT2
+ DCA EQVBIT /CLR
+ DCA I PTCPR /INITIALIZE PAGE TABLE CODE WORD
+ DCA I PTSPR /INITIALIZE PAGE TABLE SYMBOL WORD
+ CDF 00
+ DCA I PTOPR /INITIALIZE PT OP CODE POINTER
+ CDF 10
+ TAD CURSKP /MOVE CURRENT SKIP INSTRUCTION INDICATOR
+ DCA LSTSKP /TO LAST INSTRUCTION SKIP INDICATOR
+ TAD BANK /MOVE CURRENT BANK
+ DCA LSTBNK /TO LAST BANK
+ JMP I INCPT /RETURN
+ISZPT2, ISZPT
+//
+//FOLLOWING CODE MOVED HERE TO MAKE ROOM FOR V03 IN ASME3
+ASMEXT, JMS I OUTSKP /YES, OUTPUT SKP
+ TAD ILC /GET PG.LOC.PTR.
+ AND K177
+ TAD K5204 /OUTPUT JMP .+4
+ DCA TEM1
+ JMP I .+1
+ REEASM
+K5204, 5204
+
+
+\f*3600
+
+/ ABSYM PSEUDO OPERATOR
+/
+PABSYM, TAD K400
+ JMS DEFSUB
+ CLA
+ JMP DEF1
+
+/SKPDF & OPDEF PSUEDO-OPS
+
+
+SKPDEX, TAD K20 /PUT IN SKIP BIT
+OPDEX, TAD K3010 /STANDARD OP BITS
+ JMS DEFSUB
+ CLL
+ AND K7000 /CK TYPE OF INST
+ TAD K2000
+ SNA CLA
+ JMP DEF1 /IOT
+ SNL
+ JMP DEF3 /MRI
+ TAD S0 /OPR, BUT WHICH GRP?
+ AND K401
+ CLL RAR
+ SNA CLA
+ JMP DEF2 /GRP1
+ SZL
+ TAD K100 /GRP3
+ TAD K200 /GRP2
+DEF1, TAD TEM5
+ DCA USE
+ TAD S0
+ DCA VAL
+ TAD VAL
+ JMP I NULLP
+DEF2, TAD K100
+ JMP DEF1
+DEF3, TAD K400
+ JMP DEF1
+K401, 401
+K3010, 3010
+
+
+/
+/UTILITY FOR PABSYM & OPDEX
+/CALL WITH MST CODE WORD EXCEPT BITS 10-11
+/IN AC. EXITS WITH SYMBOL VALUE
+/AS DEF. BY SOURCE TAPE IN S0 & IN AC.
+/
+DEFSUB, 0
+ DCA TEM5
+ JMS I GETSYM /GET THE SYMBOL NAME
+ JMP DEFERR /NULL
+ JMP .+3 /SYMBOL
+K7000, NOP
+ JMP DEFERR /CONST. OR LIT.
+ TAD S0 /ADD IN SYM LENGTH
+ TAD TEM5
+ DCA TEM5
+ JMS I GETSYM /GET VALUE
+ NOP /NULL
+ SKP /SYMBOL
+K7410, SKP /CONST
+DEFERR, IERROR /LIT.
+ JMS I SKIPL
+ TAD S0 /VALUE
+ JMP I DEFSUB
+
+/
+/OCTAL TYPEOUT
+/CALLING SEQUENCE: TAD (OCTAL#)
+/ JMS L62
+/ RET. AC=0
+/
+
+L62, 0
+ CLL RAL /PUSH THRU LINK
+ DCA TEM1
+ TAD M4 /SET CTR
+ DCA TEM2
+L62A, TAD TEM1
+ RTL
+ RAL
+ DCA TEM1
+ TAD TEM1
+ AND K7
+ TAD K260
+ JMS I TYPE
+ ISZ TEM2
+ JMP L62A
+ JMP I L62
+M4, -4
+K260, 0260
+
+/
+/DUMMY OUTPUT ROUTINE
+/REPLACES OUTBN DURING ASMBLY PHASE 1
+/CALLING SEQUENCE: JMS DUMMY
+/ ADDR. OF ARG
+/ RELOC. CONST.
+/ RETURN
+/NOTE: SAME CALLING SEQ. AS OUTBN
+/
+DUM, 0
+ CLA CLL
+ ISZ DUM /INDEX FOR PROPER EXIT
+ ISZ DUM /INDEX FOR PROPER EXIT
+ JMP I DUM
+/
+/ ROUTINE TO SEARCH EXTERNAL SYMBOL TABLE
+/ FOR CUR SYMBOL - RETURNS EXTERNAL SYMBOL
+/ NUMBER IN AC - PLACES SYMBOL ON TABLE
+/ AND OUTPUTS BIN CODE FOR TV IF NOT ON TABLE
+/
+L66, 0
+ TAD ESTSIZ /IS TABLE FULL?
+ TAD M100
+M100, SMA CLA
+ SERROR /YES
+ TAD ESTSIZ /SIZE OF EST
+ SZA /IS TABLE EMPTY
+ JMP L66A1 /NO ... SEARCH IT
+L66A3, CLA CMA /YES ... PLACE SYMBOL ON IT
+ ISZ ESTSIZ /INCREMENT TABLE SIZE
+ TAD BSEEST /BASE
+ TAD ESTSIZ /+SIZE
+ DCA TEM1 /GIVES ADDRESS OF NEW ENTRY
+ TAD SYMBOL /PHYSICALLY PLACE ON TABLE
+ CDF 00
+ DCA I TEM1
+ CDF 10
+ TAD USE /MST CODE WORD
+ AND K403A /SAVE LENGTH AND DEFINITION BIT
+ TAD K2000 /ADD EXTERNAL BITS
+ DCA USE
+ JMP L66A /GO TO PUNCH TV DEF
+L66A1, CIA
+ DCA TEM2 /PLACE -SIZE IN INDEX LOC
+ DCA TEM3 /ZERO COUNT
+ CLA CMA
+ TAD BSEEST /BASE OF EST - 1
+ DCA X1 /TO AUTO X1
+L66A2, ISZ TEM3 /INCREMENT COUNT LOC
+ CDF 00
+ TAD I X1 /-TABLE SYMBOL
+ CDF 10
+ CIA
+ TAD SYMBOL /+ CUR SYMBOL
+ SNA CLA /COMPARE
+ JMP .+4 /SAVE
+ ISZ TEM2 /NOT SAME ... ANY MORE
+ JMP L66A2 /YES ... KEEP TRYING
+ JMP L66A3 /NO ... PLACE ON TABLE
+ TAD TEM3 /PLACE COUNT IN AC
+ JMP I L66 /RETURN
+/
+/ OUTPUT BINARY EXTERNAL SYMBOL
+/
+ HCBPS
+L66A, JMS I .-1 /CHECK TO SEE IF COMMON HAS BEEN PUNCHED
+ JMS I OUTBIN /TV DEF FOR 1 SYMBOL
+ K1
+ 17
+ JMS I L62A1 /PUNCH ASCII CHARS
+ TAD ESTSIZ /EST NO TO AC
+ JMP I L66 /RETURN
+L62A1, L68
+K403A, 403
+K1, 1
+
+\f*4000
+
+
+
+/
+/SYMBOL TABLE LISTING ROUTINE
+/TYPES TABLE FROM "STTP" UP
+/WITH NAME-VALUE-FLAG
+/POSSIBLE FLAGS ARE: EXT, COM, UNDF, ABS, OP
+/FLAGS TYPED BY "STFT"
+/TABLE LISTED ALPHABETICALLY WITH NUMERIC
+/CHARACTERS .GT. ALPHABETIC
+/
+
+PRSYM, 0
+ DCA PFLG /CLR PRSYM-PASS FLAG
+ TAD I LSTDEP
+ SNA CLA
+ JMP .+3
+ TAD PUNCH /LIST ON H.S. PUNCH
+ DCA TYPE
+ JMS I CRLF
+PRS1, TAD PST /INIT SPTR AT TOP OF PERM. S.T.
+ DCA SPTR
+ TAD M3 /FILL S1,S2,S3 WITH 7777'S (MAX)
+ DCA ALEN
+ TAD APTR
+ DCA X1
+ CMA
+ DCA I X1
+ ISZ ALEN
+ JMP .-3
+ TAD K3 /AND LENGTH=3
+ DCA ALEN
+ DCA FOUND /CLR EXIT FLAG
+PRS2, TAD STT /HAS SEARCH HIT END OF TABLE?
+ CIA
+ TAD SPTR
+ SNA CLA
+ JMP PRS7 /YES, USE THE A-SYM WE HAVE
+ JMS I OBSYM /NO, GET NEXT MST ENTRY
+ SPTR
+ TAD BCODE /EXTRACT LENGTH
+ AND K3
+ DCA BLEN
+ TAD BPTR /INDEX NEW ENTRY
+ DCA X2
+ TAD BLEN /SET ENTRY CTR
+ CIA
+ DCA BCTR
+ TAD ALEN /SET A-SYM CTR
+ CIA
+ DCA AACTR
+ TAD APTR /INDEX A-SYM
+ DCA X1
+ TAD PFLG /IS THIS THE FIRST TIME THRU THE TABLE?
+ SZA CLA
+ JMP PRS3 /NO
+ TAD BCODE /YES, CLR ENTRY BIT 0
+ AND K3777 /(THE HAS-BEEN-PRINTED FLAG)
+ DCA BCODE
+PRS3, TAD BCODE /HAS THIS SYMBOL BEEN PRINTED ALREADY?
+ SPA CLA
+ JMP PRS6 /YES, IGNORE IT
+PRS4, TAD I X1 /NO, COMRARE A-SYM WORD
+ CIA CLL
+ CDF 00
+ TAD I X2 /WITH B-SYM WORD
+ CDF 10
+ SNA
+ JMP .+4 /MATCH SO FAR
+ SNL CLA
+ JMP PRS5 /A-SYM WORD IS BIGGER-- USE B-SYM
+ JMP PRS6 /VICE-VERSA
+ ISZ AACTR /IS A-SYM DONE?
+ SKP /NO
+ JMP PRS6 /YES, STICK WITH A-SYM
+ ISZ BCTR /IS B-SYM DONE
+ JMP PRS4 /NO, TRY NEXT WORD
+PRS5, ISZ FOUND /YES, B-SYM IS NEW A-SYM
+ /SET CONTINUE FLAG
+ TAD BPTR /INDEX B-SYM
+ DCA X2
+ TAD APTR /CLR STORAGE FOR NEW A-SYM
+ DCA X1
+ DCA I X1
+ DCA I X1
+ DCA I X1
+ TAD APTR /RESET A-SYM INDEX
+ DCA X1
+ TAD BLEN /CTR FOR TRANSFER
+ CIA
+ DCA ALEN
+ CDF 00
+ TAD I X2 /MOVE B-SYM TO A-SYM
+ CDF 10
+ DCA I X1
+ ISZ ALEN
+ JMP .-5
+ TAD BLEN /NEW LENGTH
+ DCA ALEN
+ TAD BVAL /NEW VALUE
+ DCA AVAL
+ TAD BPTR /NEW PTR
+ DCA ASAV
+PRS6, TAD BPTR /MOVE SPTR TO NEXT MST ENTRY
+ TAD BLEN
+ TAD K2
+ DCA SPTR
+ JMP PRS2 /CONTINUE SEARCH
+PRS7, TAD FOUND /HAS ANOTHER SYMBOL BEEN FOUND?
+ SNA CLA
+ JMP PRS8 /NO, EXIT
+ JMS I OBSYM /YES
+ ASAV
+ TAD USE
+ TAD K4000
+ DCA USE /SET HAS-BEEN-PRINTED BIT
+ ISZ PFLG /SET PASS FLAG
+ JMS I CRLF /POSITION PRINT
+ TAD APTR /INDEX SYMBOL
+ DCA X1
+ TAD M3 /SET CTR
+ DCA ALEN
+ TAD I X1 /PRINT SYMBOL
+ JMS I CTYPE
+ ISZ ALEN
+ JMP .-3
+ JMS I CTYPE /PRINT 2 SPACES
+ TAD AVAL /PRINT VALUE
+ JMS I OTYPE
+ TAD USE /MOVE TYPE BITS TO LOW AC
+ RTL /& DEF. BIT TO LINK
+ RTL
+ JMS I STFTI /TYPE FLAGS IF ANY
+ JMP PRS1 /LOOK FOR ANOTHER SYMBOL TO PRINT
+
+PRS8, JMS I CRLF
+ JMS I CRLF
+ JMP I PRSYM
+
+
+STFTI, STFT
+ASAV=UMIC
+PFLG=TEM3
+PST, STTP /TOP OF PERMANENT SYMBOL TABLE
+ALEN=S0
+APTR=AS0
+BPTR=SYMBOL
+BVAL=VAL
+BCODE=USE
+FOUND=TEM4
+SPTR=TEM5
+BLEN=LFS
+BCTR=OP
+AACTR=IB
+AVAL=AFS
+K3777, 3777
+LSTDEP, LSTDEV
+
+
+\f*4200
+
+/
+/ROUTINE TO PUSH DOWN CUR.LINE FOR NEXT PAGE.
+/SAVES ENTIRE LIST OF VITAL INFO
+/(LFS, OP, IB,...,BANK, S0) IN TEMP.LOCS
+/(TLFS, TOP, TIB,..., TS0)
+/BOTH LISTS MUST BE KEPT IN SPECIFIED
+/ORDER.
+/IF THERE IS AN LFS ON LINE MUST MARK IT
+/NO-LONGER-DEFINED-ON-PAGE IN PST.
+/
+
+PUSHIN, 0
+ TAD LFS /IS THERE AN LFS
+ SNA CLA
+ JMP PSHIN2 /NO
+ JMS I OBSYM
+ LFS
+ JMS I SPSTAB /GET ITS POINTERS TO THE PAGE SYMBOL TABLE
+ NOP
+ TAD I PSTCPR /KILL THE DEFINED BIT
+ AND K3777A
+ DCA I PSTCPR /SET PAGE SYMBOL TABLE CODE WORD OFF PAGE
+PSHIN2, JMS PUSHER
+ LFS-1
+ TLFS-1
+ JMP I PUSHIN /RETURN
+/
+/ ROUTINE TO POP UP A PUSHED DOWN INSTRUCTION
+/
+POPIN, 0
+ CLA
+ JMS PUSHER
+ TLFS-1
+ LFS-1
+ JMP I POPIN /RETURN
+TLFS, 0 /KEEP THIS LIST ORDERED AS GIVEN
+TOP, 0
+TIB, 0
+TAFS, 0
+TUMIC, 0
+TNSGN, 0
+TEXP, 0
+TSKZ, 0
+TBANK, 0
+TS0, 0
+
+
+/
+/TRANSFER ANY LIST OF 10 (12 OCTAL) ITEMS
+/FROM ONE LIST TO ANOTHER
+/CALL SEQ.: JMS PUSHER
+/ ADDR-1 OF FROM-LIST
+/ ADDR-1 OF TO-LIST
+/ RET.
+/
+
+PUSHER, 0
+ TAD M12A
+ DCA TEM1 /CTR
+ TAD I PUSHER
+ DCA X1 /INDEX FROM LIST
+ ISZ PUSHER
+ TAD I PUSHER
+ DCA X2 /INDEX TO LIST
+ TAD I X1
+ DCA I X2
+ ISZ TEM1
+ JMP .-3
+ ISZ PUSHER
+ JMP I PUSHER
+M12A, -12
+K3777A, 3777
+/RETRN PSUEDO-OP
+/
+PRTN, JMS I GETSYM /GET NEXT INPUT ITEM
+ SKP /NOTHING
+ JMP .+3 /SYMBOL
+ NOP /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ JMS I SREST /PLACE SYMBOL ON EXTERNAL SYMBOL TABLE
+ DCA PRTN0 /SAVE SYMBOL ID
+ JMS PUSHIN /PUSH LFS INFO IN CASE OF PAGE ASSEMBLY
+ TAD K2 /SET AC TO 2
+ JMS I PRTN1 /ARE THERE 2 LOCATIONS ON THIS PAGE
+ SKP CLA /YES
+ JMS I INI /NO ... HAD TO ASSEMBLE PAGE ... INITIALIZE PT
+ JMS POPIN /POP LFS INFO FROM PAGE PUSH LIST
+ JMS I ICPLFS /PROCESS ANY LFS
+ TAD I PTCPR /PT CODE WORD WITH POSSIBLE LFS BIT
+ TAD K30 /ADD SPECIAL RELOCATION BIT
+ DCA I PTCPR /PLACE PROPER CODE WORD ON PT
+ TAD DOTRTN
+ DCA I PTSPR /PLACE JMS .RTN INSTRUCTION IN PT SYMBOL WORD
+ JMS I PRTN3 /INCREMENT PT POINTERS
+ TAD K130 /PROPER BIT PATTERN
+ DCA I PTCPR /TO PT CODE WORD
+ TAD PRTN0 /PLACE EXTERNAL SYMBOL NUMBER ON PT
+ DCA I PTSPR /AS SYMBOL WORD
+ JMS I PRTN3 /INCREMENT PT POINTERS
+ JMP I POPEXP /EXIT FOR NEXT LINE
+DOTRTN, JMS RTN
+PRTN0, 0
+PRTN1, IFFSUB
+PRTN3, ASMIF1
+
+/
+/ @PAUSE@ PSEUDO OPERATION
+/
+PPAUSE, JMS I WLNIFI /LIST IF PASS 2
+ CLA HLT /WAIT FOR OPERATOR ACTION
+ RFC /SELECT READER
+ JMS I INITRP
+ JMS I SKIPL
+PPAUS1, CMA /WE REACH THIS ONLY IF FORFLG. LE. 0(ALSO COME FROM *PEND*)
+ DCA FORFLG /SHUT OFF FORTR IN CASE GUY
+ /HAS STARTED HIS TAPE IN
+ /THE MIDDLE
+ JMP I DCIL1 /RETURN FOR NEXT LINE
+
+WLNIFI, WLNIF1
+
+
+/
+/OVERAL ASSEMBLY INITIALIZATION
+/
+INITA, 0
+ CDF 10
+ DCA I FATALP
+ JMS I CRLF
+ JMS I CRLF
+ TAD PEB
+ DCA I PEPTRP
+ JMS PUSHER /INIT HICOM, PAGE, ESTSIZ, EQVBIT & APMSW ETC
+ K777-1
+ HICOM-1
+ JMS I INITRP
+ TAD PASS
+ SZA CLA
+ JMP I INITA
+ DCA SYMBOL /PROTECT FROM RUSVL
+ JMS I INITMP
+ DCA CSUM
+ TAD K10 /SET PUSH CTR=-2
+ JMS PUSHER /INIT OTP & STP
+ OTPR-1
+ OTP-1
+ JMS I LEADI
+ JMP I INITA
+OTPR, CORE1-1 /KEEP STTR IMMEDIATELY AFTER OTPR
+STTR, STTP
+/***** KEEP ITEMS SO INCLOSED IN GIVEN ORDER
+K777, 177
+ 200
+ 0
+ 0
+ 0
+ 1
+ 1
+ 0
+ 0
+ 0
+/******************
+INITRP, INITR
+FATALP, FATAL
+PEPTRP, PEPTR
+LEADI, LEADER
+PEB, PEBSE
+INITMP, INITMR
+\f*4400
+/
+/ ROUTINE TO SEARCH SYMBOL TABLE FOR SYMBOL IN S0-S3
+/ PLACES SYMBOL ON TABLE IF NOT THERE
+/ CALL IS
+/ JMS SRSYM
+/ NOT FOUND EXIT
+/ FOUND EXIT
+
+/RETURNS WITH SYMBOL CODE BITS IN "USE"
+/SYMBOL VALUE (0 IF NOT DEFINED)
+/IN "VAL"
+/& PTR TO SYM.TAB. ENTRY IN "SYMBOL"
+/THE LATTER ADDRESS IS REFERRED TO HERE IN
+/AS THE SYMBOL "ID"
+/SRSYM CALL RUSVL TO STORE USE & VAL
+/OF LAST REFERENCED SYMBOL IN MST
+/IN CASE THEY HAVE BEEN CHANGED
+/IN THE MEANWHILE.
+
+/
+SRSYM, 0
+ JMS RUSVL
+ TAD MST /START AT SYM. TAB. BASE
+SRS1, DCA SYMBOL /SET PTR. TO NEXT ENTRY
+ TAD STT /COMPARE PTR. WITH SYM. TAB. TOP
+ CIA
+ TAD SYMBOL
+ SNA CLA /CONTINUE SEARCH
+ JMP SRS2 /NAME NOT IN TABLE ENTER IT
+ CDF 00
+ TAD I SYMBOL /GET ENTRY CODE WORD
+ CDF 10
+ AND K3 /EXTRACT SYMBOL LENGTH
+ DCA TEM2
+ TAD TEM2
+ CIA /NEGATE FOR COMPARE & CTR.
+ DCA TEM1
+ TAD TEM1 /COMPARE ENTRY & LOOK-UP SYMBOL LENGTHS
+ TAD S0
+ SZA CLA /SAME LENGTH; COMPARE LETTERS
+ JMP SRS5 /NOT SAME; GO TO NEXT ENTRY
+ TAD AS0 /AUTO-INDEX LOOP-UP SYMBOL
+ DCA X1
+ TAD SYMBOL /AUTO-INDEX TABLE ENTRY
+ DCA X2
+SRS3, CDF 00
+ TAD I X2 /GET TABLE ENTRY CHAR. PAIR
+ CIA
+ CDF 10
+ TAD I X1 /COMPARE LOOK-UP SYMBOL CHAR. PAIR
+ SZA CLA /SAME
+ JMP SRS5 /NO MATCH
+ ISZ TEM1 /CK SYM. LEN. CTR.
+ JMP SRS3 /NOT DONE, TRY NEXT CHAR. PAIR
+SRS4, JMS SUSVL /GET USE & VAL WORDS
+ JMP I SRSYM
+
+SRS5, TAD SYMBOL /PTR TO LAST ENTRY
+ TAD K2 /+2 FOR USE & VAL WORDS
+ TAD TEM2 /+ENTRY SYMBOL LENGTH
+ JMP SRS1 /=PTR TO NEXT ENTRY
+/
+/CURRENT SYMBOL NOT ON TABLE ... PLACE IT THERE
+/
+
+SRS2, TAD OTP /WILL NEW ENTRY FIT BELOW
+ CIA CLL /OCCURANCE TABLE?
+ TAD SYMBOL
+ TAD S0
+ SZL CLA /0 LINK=YES
+ SERROR /NO, SYMBOL TABLE OVERFLOW
+ TAD S0 /ENTRY CODE WORD = SYM. LEN.
+ TAD K1000 /+REL BIT
+ CDF 00
+ DCA I STT /PUT CODE IN 1ST WORD OF NEW ENTRY
+ TAD STT /AUTO-INDEX ENTRY
+ DCA X2
+ TAD AS0 /AUTO-INDEX SYMBOL TO BE STORED
+ DCA X1
+ TAD S0 /SET SYM. LEN. CTR.
+ CIA
+ DCA TEM1
+ERS1, CDF 10
+ TAD I X1 /MOVE SYMBOL CHAR. PAIR TO TABLE
+ CDF 00
+ DCA I X2
+ ISZ TEM1 /CK. CTR.
+ JMP ERS1 /NOT DONE
+ DCA I X2 /CLR VALUE WORD
+ TAD STT /SAVE PTR TO NEW ENTRY
+ DCA SYMBOL
+ TAD X2 /RESET PTR. TO SYM. TAB. TOP
+ IAC
+ DCA STT
+ CDF 10
+ JMP SRS4
+
+/
+/OBTAIN GIVEN SYMBOL'S VITAL INFO FROM MST
+/CALL SEQ: JMS OBNSYM
+/ ADDRESS OF SYMBOL ID
+/ RET.
+/OBNSYM LEAVES SYMBOL ID IN "SYMBOL",
+/ SYMBOL CODE WORD IN USE,
+/ SYMBOL VALUE IN VAL.
+/OBNSYM CALLS RUSVL BEFORE ACTION
+/FOR SAME REASON AS SRSYM DOES.
+/
+OBNSYM, 0
+ JMS RUSVL
+ TAD I OBNSYM /ADDRESS OF SYMBOL
+ DCA TEM1
+ TAD I TEM1 /ACTUAL SYMBOL
+ DCA SYMBOL
+ ISZ OBNSYM /INDEX FOR EXIT
+ JMS SUSVL /SET UP USE AND VALUE WORDS
+ JMP I OBNSYM /RETURN WHEN FOUND
+/
+/ ROUTINE TO SET UP USE AND VALUE WORDS
+/
+SUSVL, 0
+ CDF 00 /OFF TO BANK 1
+ TAD I SYMBOL /MST USE WORD FROM BANK 1
+ DCA USE /TO BANK 0 USE LOCATION
+ TAD USE
+ AND K3
+ IAC
+ TAD SYMBOL
+ DCA VALPTR
+ TAD I VALPTR /MST VALUE WORD FROM BANK 1
+ DCA VAL /TO BANK 0 VALUE LOCATION
+ CDF 10 /RESTORE DATA FIELD
+ JMP I SUSVL /RETURN
+
+RUSVL, 0
+ CDF 00
+ TAD USE
+ DCA I SYMBOL
+ TAD VAL
+ DCA I VALPTR
+ CDF 10
+ JMP I RUSVL
+
+VALPTR, 0 /PTR TO CURRENT VAL WORD IN MST
+/
+/READ A CHARACTER
+/ IGNORES LF, FF, RO, LEADER
+/ ALSO CHECKS CHAR AS TO TYPE
+/CALLING SEQ: JMS RCH
+/ RETURN IF CHAR IS A DIGIT
+/ RETURN IF CHAR IS ALPHABETIC
+/ RETURN FOR ALL OTHER (PUNCT,ETC)
+/LEAVES AC==0
+/ CHR=ASCII VALUE OF INPUT CHARACTER
+/CALLS SRT
+
+RCH, 0
+ JMS I GETCHR /GET 1 CHAR
+ SNA
+ JMP RCH3 /0=END OF LINE
+ TAD M260
+ SPA
+ JMP RCH3 /TAKE PUNCT.EXIT (200-257)
+ TAD M12
+ SPA
+ JMP RCH4 /TAKE DIGIT EXIT (260-271)
+ TAD M7
+ SPA
+ JMP RCH3 /TAKE PUNCT, EXIT (272-300)
+ TAD M37A
+
+ SMA
+
+RCH3, ISZ RCH /PUNCT, EXIT (337-376)
+ ISZ RCH /ALPHA EXIT (301-336)
+
+RCH4, CLA /DIGIT EXIT
+ JMP I RCH
+M260, -260
+M12, -12
+M37A, -36
+
+
+/FORCE BUFFER FILL ON FIRST READ
+
+INITR, 0
+ TAD MBE
+ DCA X3
+ JMP I INITR
+
+MBE=LINAX /=LAST WORD OF DATA BUFFER
+\f*4600
+
+/SUBR TO READ 1 LINE INTO LINE BUFFER
+
+RLN, 0
+ DCA LFLG /CLR NON-NULL LINE FLAG
+ TAD SCOLON /IF LAST LINE ENDED WITH ;
+ SZA /NO NEED TO READ ANOTHER
+ JMP RLN4
+ TAD LINAX /INIT STORAGE AUTO-INDEX
+ DCA X2
+RLN2, JMS FETCH /GET A CHARACTER
+ JMS I TEST /IS IT A CR,TAB,SP,FF,LF?
+ SL7-1 /IF SO GO TO RLN15,3,3,2,2
+ BL6-SL7
+ ISZ LFLG /OTHERWISE A NON-NULL LINE
+RLN3, JMS I STOREP /OTHERWISE PUT IT IN THE BUFFER
+ TAD X2 /IS BUFFER FULL?
+ TAD LINEND
+ SZA CLA
+ JMP RLN2 /NO
+ CMA
+ TAD X2
+ DCA X2 /IF SO MOVE BACK PTR
+ JMP RLN2
+RLN15, DCA CHR /TERMINATE LINE WITH 0
+ JMS I STOREP
+ DCA AFLG
+ DCA EFLG
+ DCA VFLG
+ DCA CODE
+ TAD LINAX /INIT LINE INDEX
+RLN4, DCA X0
+ DCA SCOLON /CLR
+ JMP I RLN
+
+
+STOREP, STORE
+LINEND, -LINBUF-107
+
+/SUBROUTINE TO READ 1 CHARACTER VIA INPUT DEVICE
+/IGNORES 200'S & 377'S
+
+FETCH, 0
+ JMS R
+ AND K177
+ TAD K200 /FORCE FULL 8BIT ASCII
+ DCA CHR
+ TAD CHR
+ TAD M200
+ SZA
+ TAD M177
+ SNA CLA
+ JMP FETCH+1
+ JMP I FETCH
+M177, -177
+
+/SUBR TO GET NEXT CHAR FROM HSR BUFFER
+/REFILL BUFFER WHEN X3 REACHES END OF BUFFER
+
+R, 0
+ CDF 00
+ TAD X3
+ TAD BUFEND /CK FOR END OF BUFFER
+ SNA CLA
+ JMP RG /REFILL
+R1, TAD I X3 /GET NEXT CHAR
+ CDF 10
+ JMP I R
+RG, TAD BUF /INDEX THE BUFFER
+ DCA X3
+RG1, JMS I INDEV
+ DCA I X3
+ TAD X3 /CK FOR FULL
+ TAD BUFEND
+ SZA CLA
+ JMP RG1 /NOT FULL
+RG3, TAD BUF /RESET PTR
+ DCA X3
+ JMP R1
+
+INDEV, HSR
+BUF, DATA-1
+
+BUFEND, 1-LINBUF
+
+/GET 1 CHAR FROM LINE BUFFER
+
+L65, 0
+ CDF 00
+ TAD I X0
+ CDF 10
+ DCA CHR
+ TAD CHR
+ JMP I L65
+
+/
+/ ROUTINE TO PUNCH LEADER TRAILER CODE
+/
+LEADER, 0
+ TAD K7600
+ DCA TEM1
+ TAD K200
+ JMS I PUNCH
+ ISZ TEM1
+ JMP .-3
+ JMP I LEADER
+
+/
+/ ROUTINE TO TYPE RETURN-LINE FEED
+/
+ 0215
+ 0212
+L73, 0
+ CLA
+ TAD L73-2
+ JMS I TYPE
+ TAD L73-1
+ JMS I TYPE
+ JMP I L73
+
+
+/DECIM & OCTAL PSUEDO-OPS
+
+PDEC, JMS I SKIPL
+ IAC /SET ARITHMETIC CONVERSION TO DECIMAL
+ SKP
+POCT, JMS I SKIPL
+ DCA DSW /SET ARITHMETIC CONVERSION TO OCTAL
+ JMP I NULLP /GO GET NEXT INPUT LINE
+
+
+
+/
+/ROUTINE TO STOP NEXT LINE FROM BEING LISTED
+/THO IT IS ALREADY IN THE BUFR.
+/E.G., STOP LISTING OF PUSHED DOWN LINE
+/WHILE ASSEMBLING LIT. POOL
+/
+SAVLIN, 0
+ CDF 00
+ TAD I LINEB2 /SAVE 1ST CHAR OF LINE
+ SNA /IF ANY
+ JMP .+3 /THERE ISNT ANY
+
+ DCA SAVEIT
+ DCA I LINEB2 /CLR TO PREVENT TYPEOUT
+ CDF 10
+ JMP I SAVLIN
+
+
+/
+/REENABLE LISTING OF LINE WHICH SAVLIN
+/PREVENTED
+/
+
+RELINE, 0
+ CDF 00
+ TAD SAVEIT /RESTORE 1ST CHAR OF LINE
+ DCA I LINEB2
+ CDF 10
+ JMP I RELINE
+
+SAVEIT, 0
+LINEB2, LINBUF
+
+
+/ROUTINE TO LIST NULL, COMMENT OR PSUEDO-OP LINE
+
+NULL, DCA VALUE /IF ANY GIVEN
+ TAD VALUE /SET TYPEOUT FLAG IF NON-0
+ DCA VFLG
+ JMS I WLIF /LIST IF PASS 2
+ JMP I DCIL1 /GO BACK TO RDL1 FOR NEXT LINE
+WLIF, WLNIF1
+
+/
+/ TYPE ROUTINE
+/
+L64, 0
+ TLS /SELECT IT
+ TSF /WAIT FOR TTY
+ JMP .-1
+ CLA /EXIT WITH CLEAR AC
+ JMP I L64
+\f*5000
+/
+/ ROUTINE TO SET THE CORRECT COUNTERS FOR THE CURRENT
+/ OP CODE AND ADDRESS FIELD SYMBOL
+/
+/THIS IS A MAJOR ROUTINE. IT IS CALLED ONCE
+/FOR EVERY NORMAL (MRI,OPR,IOT) INSTR. COLLECTED.
+/IT IS ALSO CALLED DURING PAGE
+/RECOUNTING, ONCE FOR EVERY ITEM ON THE
+/PAGE TABLE.
+/CALLING SEQ: AC=0,JMS,RET WITH AC=0
+/FUNCTION: DETERMINE THE TYPE OF LINE BEING
+/READ AND SET THE VARIOUS PAGE COUNTERS
+/AND FLAGS ACCORDINGLY.
+/A FLOW CHART OF TYPES & FLAG SETTINGS IS GIVEN BELOW.
+/CONSIDERABLE OVERLAPPING IS USED TO ACHIEVE
+/THE MIN. CORE USAGE. THIS IS SOMETIMES AT THE
+/EXPENSE OF LOGICAL CLARITY.
+/ALL POSSIBLE CONDITIONS EXIT VIA SETC00
+/SETC00:(1) IF LAST INSTR. WAS A SKIP & LAST BANK
+/ IS NOT= CUR.BANK, BANK=-1.
+/ (2) IF CUR. INSTR. IS A SKIP, PGEESC=4
+/ OTHERWISE PGEESC=2.
+/ (3) LASTSKIP CONDITION= CUR. SKIP CONDITION
+/ (4) LAST BANK= CUR. BANK
+/
+/FLOW OF INSTR. TYPES
+/SETCT: IF (PARAMETER OR MICRO-INSTR.) SETC00
+/ IF (LITERAL AFS) SETC02
+/ IF(CONSTANT AFS) SETC01
+/ CALL OBNSYM(AFS)
+/ IF (INSTR. IS INDIRECT) SETC07
+/ IF (AFS IS IN COMMON) SETCO4
+/ IF (ABSOLUTE AFS) SETC05
+/ CALL SPSTB (AFS) /SEARCH PST FOR AFS
+/ CALL SETSUB
+/ IF (AFS NOT BEFORE ON PST) SETC06
+/ IF (AFS WAS IN PST BUT NOT DEF. ON PAGE)SETC12
+/ IF (OP CODE=JMS) BANK=1
+/ GO TO SETC00 /ON PAGE MR1
+/SETC01:IF (CONST.AFS ON PG.0)J2
+/ IF (INSTR. IS INDIRECT) ERROR
+/ CALL SLTAB(CONST. AFS) /PUT CONST. IN LIT.TAB.
+/J1: IF (BANK NOT=1) SETC13
+/ GO TO SETC00
+/ J2* IF( INSTR.INDIR.) J1 /PG.0 INDIRECT
+/ GO TO SETC00 /PG.0 DIRECT
+/SETC04:IF(BANK NOT 0) CALL INCOBA /INC OBACTR
+/ CALL NUMSGN
+/ S0=RESULT+COMMON ADDR.
+/SETC02:CALL SLTAB(S0) /LIT.OR. COMMN. ADDR. TO LIT. TAB.
+/ GO TO SETC00
+/ IF (AFS NOT PREV. ON PST) SETC11
+/ IF (AFS WAS ON PST BUT NOT DEF. ON PAGE) SETC11
+/ GO TO J3
+/SETC10:CALL NUMSGN
+/ IF (ABS.AFS ON PAGE 0) J3
+/SETC11:AC=1 /FORCE BANK=1
+/SETC09:AC=AC+1 /FORCE BANK=0
+/SETC08:AC=AC-2 /FORCE BANK=-1
+/ CALL INCOBA /INC OBACTR
+/ AC=BANK /(BANK OFFSET BY -1)
+/ GO TO SETC13 /(TAKEN CARE OF AT SETC13)
+/SETC12:IF (NEW PST CODE BITS 10-11=OLD SAME (IN TEM 3)) J3
+/SETC06:INC OPSCTR /OFF PAGE SYMBOL
+/J3: IF (BANK=1) SETC00
+/ INC AC
+/ CALL INCOBA
+/J4: IF (THERE HAS NOT BEEN A PST SEARCH) SETC00
+/ ADD CHANGE IN OBACTR (OBACTR-OLDOBA) TO PST CODE BITS 3-9
+/ GO TO SETC00
+/
+/NOTE: CONDITION AT J4 IS TESTED BY SETSUB HEADER
+/WORD (OBFLG). THIS IS ALWAYS CLEARED
+/WHEN SETCT STARTS AND WILL NOT CHANGE
+/UNLESS THERE IS A CALL TO SPSTB BECAUSE
+/A CALL TO SETSUB ALWAYS FOLLOWS CALL TO
+/SPSTB IN SETCT.
+
+
+/
+\fSETCT, 0
+ JMS I ICPLFS /CHECK FOR AND PROCESS ANY LFS
+ DCA OBFLG /CLR
+/NEXT 2 LINES MOVED TO
+/SETCAL (AS OF V15) TO MAKE ROOM FOR FOLLOWING INSTR. & PTR
+/ TAD EXP /IS IT PAR OR A MICRO INST?
+/ TAD UMIC
+ JMS I SETCAP
+ SZA CLA
+ JMP I SET00I /YES
+ CLA CLL CMA RAL
+ TAD AFS
+ SNA /IS AFS A CONSTANT
+ JMP SETC01 /YES
+ IAC
+ SNA CLA /IS AFS A LITERAL
+ JMP I SET02I /YES
+ JMS I OBSYM /NO ... GET POINTERS TO AFS
+ AFS
+ TAD IB /INDIRECT BIT
+ SZA CLA /IS IT SET
+ JMP SETC07 /YES
+ JMS USETST /TEST FOR OFF BANK OR ABSOLUTE
+ SETC04 /OFF BANK
+ SETC05 /ABSOLUTE
+ JMS I SPSTAB /IS AFS ON PST
+ CMA /NOT FOUND
+ JMS SETSUB
+ JMP I SET06I /NO ... MUST BE OFF PAGE
+ TAD I PSTCPR /YES ... PST CODE WORD
+ SMA CLA /IS AFS ON PAGE
+ JMP I SET12I /NO
+ JMP I SET00I
+/
+/ INDIRECT MEMORY REFERANCE INSTRUCTION
+
+SETC07, TAD USE /AFS MST USE WORD
+ AND K20 /IS AFS DUMMY
+ SZA CLA
+ JMP I SET08I /YES
+ JMS USETST /TEST OFF BANK OR ABSOLUTE
+ SETC09 /OFF BANK
+ SETC10 /ABSOLUTE
+ JMS I SPSTAB /IS AFS ON PST
+ CMA /NOT FOUND
+ JMS SETSUB
+ JMP I SET11I /NO
+ TAD I PSTCPR /YES ... PST CODE WORD
+ SMA CLA /IS AFS ON PAGE
+ JMP I SET11I /NO
+ JMP I SET6P1 /YES
+/
+/ CONSTANT FOR AN ADDRESS FIELD SYMBOL
+/
+SETC01, TAD S0 /ACTUAL BINARY CONSTANT
+ AND K7600 /IS CONSTANT ON PAGE ZERO
+ SNA CLA
+ JMP SET01A /YES
+ TAD IB /NO ... IS IT INDIRECT
+ SZA CLA
+ IERROR /YES ... ERROR
+ JMS I SLITAB /IS CONSTANT ON LITERAL TABLE
+ /IF NOT SUBROUTINE PUTS IT THERE
+ TAD OP
+ SPA CLA /IF OPCODE IS JMS OR JMP THEN BANK IS IRRELEVANT
+ JMP I SET00I
+SET01B, CLA CMA
+ TAD BANK /BANK SETTING
+ SNA CLA /IS IT SET TO THE CURRENT BANK
+ JMP I SET00I /YES ... NO PROBLEMS
+ JMP I SET00J /EXIT TO; COMMON AREA
+/
+SET01A, TAD IB /IS INDIRECT BIT SET
+ SZA CLA
+ JMP SET01B /YES
+ JMP I SET00I /NO
+SET00I, SETC00
+SET02I, SETC02
+SET00J, SETC13
+SET00B, JMP I SETCT /OFF PAGE RETURN
+SET06I, SETC06
+SET08I, SETC08
+SET11I, SETC11
+SET12I, SETC12
+SET6P1, SETC6A
+SETCAP, SETCAL
+
+
+/ROUTINE TO TEST MST USE WORD TO DETERMINE WHETHER A SYMBOL IS
+/OFF-BANK OR ABSOLUTE
+
+USETST, 0
+ TAD USE
+ AND K40
+ SZA CLA /IS IT OFF BANK?
+ JMP USESUC /YES- RETURN INDIRECT THROUGH FIRST ARG
+ TAD USE
+ AND K3000
+ ISZ USETST
+ SNA CLA /IS IT ABSOLUTE?
+ JMP USESUC /YES- RETURN INDIRECT THROUGH SECOND ARG
+ ISZ USETST
+ JMP I USETST /NEITHER - RETURN TO CALL+3
+USESUC, TAD I USETST
+ DCA USETST
+ JMP I USETST /TAKE PROPER BRANCH
+
+/
+/SETSUB IS A UTILITY USED BY SETCT ONLY.
+/USED ONLY IMMEDIATELY AFTER A PST SEARCH.
+/CALLING SEQUENCE: JMS SPSTB
+/ CMA /SPSTB MAY SKIP
+/ JMS SETSUB
+/ RETURN IF SPSTB SKIPPED OVER CMA
+/ RETURN IF SPSTB DID NOT SKIP
+/HAS SEVERAL FUNCTIONS:
+/(1) SAVE COPY OF OLD VALUE OF OBACTR BEFORE
+/CHANGING STARTS- SO IT MAY BE USED AT SETC13.
+/(2) IF INSTR IS INDIRECT, THAT'S IT- EXIT
+/(3) OTHERWISE SAVE OLD VALUE OF PST CODE BITS 10-11
+/FOR LATER USE AT SETC12. WARNING: THIS
+/IS SAVED IN TEM3, SO TEM3 IS NOT
+/TEMPORARY FOR A FEW MINUTES.
+/(4) SET PST CODE BIT 10 IF THIS IS A #REF,
+/OR BIT 11 IF IT IS A NORMAL REF.
+/ALGORITHM IS A.OR.B=(.NOT.A.AND.B)+A
+/
+
+SETSUB, 0
+ DCA TEM1 /0=FOUND, -1=NOT
+ TAD OBACTR /SAVE FOR SETC11,12,6,13
+ DCA I OLDOBP
+ TAD IB /OMIT CHANGING PST BITS IF INDIRECT
+ SZA CLA
+ JMP SETSX
+ TAD I PSTCPR /SAVE OLD CODE
+ AND K3
+ DCA TEM3
+ TAD NSGN
+ SZA CLA
+ IAC /#
+ IAC
+ DCA TEM2
+ TAD TEM2 /OR INTO CODE
+ CMA
+ AND I PSTCPR
+ TAD TEM2
+ DCA I PSTCPR
+SETSX, ISZ TEM1 /FOUND?
+ ISZ SETSUB /YES
+ JMP I SETSUB
+
+OLDOBP, OLDOBA
+OBFLG=SETSUB
+
+
+
+/SUBR TO STORE CHARACTER IN LINE BUFFER
+/ASSUMES X1 SET
+/CHAR MAY BE IN AC OR IN CHR
+
+STORE, 0
+ SNA
+ TAD CHR
+ CDF 00
+ DCA I X2
+ CDF 10
+ JMP I STORE
+
+
+/
+/ROUTINE TO CHECK NSGN FOR SETCT
+/USED ONLY BY SETCT ROUTINE.
+/CALLING SEQUENCE: AC=0
+/ JMS NUMSGN
+/ RETURN WITH AC=0 IF
+/ NSGN=0,AC=1 IF NSGN
+/ NOT=0.
+/NOTE:NSGN MAY BE NON-0 AND NOT=1. THIS
+/IS THE REASON FOR NUMSGN.
+/
+
+NUMSGN, 0
+ TAD NSGN
+ SZA CLA
+ IAC
+ JMP I NUMSGN
+\f*5200
+/
+/ AFS ABSOLUTE
+/
+SETC05, JMS I NUMSGP
+ TAD VAL /ABSOLUTE SYMBOL VALUE
+ AND K7600 /MASK OUT PAGE BITS
+ SNA CLA /IS ABSOLUTE SYMBOL ON PAGE ZERO
+ JMP SETC00 /YES ... EXIT
+ JMS I NUMSGP
+ TAD VAL /NO ... ABSOLUTE SYMBOL VALUE
+ DCA S0 /TO LITERAL TABLE SEARCH LOCATION
+ JMS I SLITAB /SEARCH LITERAL TABLE FOR VALUE
+ /IF NOT THERE ROUTINE PLACES IT THERE
+ JMP SETC06+1 /EXIT
+/
+/ INDIRECT ABSOLUTE
+/
+SETC10, JMS I NUMSGP
+ TAD VAL /ACTUAL AFS VALUE
+ AND K7600
+ SNA CLA /IS ADDRESS FIELD SYMBOL ON PAGE ZERO
+ JMP SETC6A /YES
+/
+/ INDIRECT DUMMY ADDRESS FIELD SYMBOL
+/
+SETC08, TAD M2 /SET BANK UNKNOWN
+/
+/ OFF PAGE INDIRECT
+/
+SETC11, IAC /SET BANK TO CURRENT
+/
+/ OFF BANK INDIRECT - SET BANK TO 0
+/
+SETC09,
+ JMS INCOBA /SET BANK & INCR. OBACTR
+ TAD BANK
+ JMP SETC13+1 /EXIT TO COMMON AREA
+/
+
+
+/ ADDRESS FIELD SYMBOL NOT ON PAGE SYMBOL TABLE.
+/
+SETC12, TAD I PSTCPR /HAS NEW TYPE REF BEEN ADDED?
+ AND K3
+ CIA
+ TAD TEM3
+ SZA CLA /YES
+SETC06, ISZ OPSCTR /INCREMENT OFF PAGE SYMBOL COUNTER
+ TAD OP
+ SPA CLA /DON'T WORRY ABOUT BANK FOR JMS'S AND JMP'S
+ JMP SETC00 /WHICH ARE NOT EXPLICITLY INDIRECT
+SETC6A, TAD BANK
+ SMA SZA CLA
+ JMP SETC00 /YES ... EXIT TO COMMON AREA
+SETC13, IAC
+ JMS INCOBA /SET BANK TO CUR. & INC OBACTR
+ TAD I OBFLGP /WAS THERE A PST SEARCH?
+ SNA CLA
+ JMP SETC00 /NO
+ TAD OLDOBA /YES GET CHANGE IN OBACTR
+ CIA
+ TAD OBACTR
+ CLL RTL /IN BITS 1-9
+ TAD I PSTCPR /ADD TO PST CODE
+ DCA I PSTCPR
+/
+/ COMMON AREA
+/
+SETC00, JMS CMNSET /SET BANK=1 AFTER JMS
+ JMS I SETCMN /UPDATE BANK AND LSTSKP
+ SZA CLA /IS CURRENT INSTRUCTION A SKIP?
+ TAD K2 /YES ... PAGE ESCAPE = 4
+ TAD K2 /NO ... PAGE ESCAPE = 2
+ DCA PGEESC
+ JMP I .+1 /RETURN
+ SET00B
+SETCMN, ASMCMN
+
+/ROUTINE TO SET BANK TO CURRENT AFTER A JMS
+CMNSET, 0
+ TAD OP
+ TAD K4000
+ SZA CLA /WAS OP A JMS?
+ JMP I CMNSET /NO
+ IAC
+ DCA BANK
+ JMP I CMNSET
+
+OLDOBA, 0
+OBFLGP, OBFLG
+/
+/ DIRECT OFF BANK REFERANCE
+/
+SETC04, TAD BANK /BANK INDICATOR
+ SZA CLA /IS BANK SET TO OFF
+ JMS INCOBA /NO, SET BANK TO COMMN & INC OBACTR
+ JMS I NUMSGP
+ TAD VAL /YES ... ACTUAL BANK 0 ADDRESS
+ DCA S0 /TO CONSTANT - LITERAL LOCATION
+/
+/ LITERAL FOR AN AFS
+/
+SETC02, JMS I SLITAB /PLACE LITERAL ON LITERAL TABLE
+ JMP I SET1AP
+/
+/ COLLECTION ROUTINE TO CHECK FOR AND PROCESS AN LFS
+/
+/CALLING SEQUENCE: AC=0
+/ JMS CPLFS
+/ RETURN WITH AC=0
+/FUNCTION: USED DURING COLLECTION PHASE
+/ EXCEPT WHEN RECOUNTING A PAGE.
+/ IF TAG OCCURS ON CURRENT LINE, CPLFS
+/ LOCATES (OR ENTERS) IT IN PAGE SYM.TAB.
+/ AND SETS THE DEFINED-ON-PAGE BIT IN
+/ THE PST CODE WORD.
+/ ALSO SETS BANK CONDITION TO UNKNOWN
+/ SINCE USER CODE CAN JUMP TO TAG
+/ FROM ANYWHERE. ALSO SAVE
+/ TAG IN LLFS & RESET LINE COUNT
+/ IN CASE WE GET A MULT.DEF. ERROR
+/ IN PASS1 WE MUST ALSO DO THE
+/ FOLLOWING IF THE SYMBOL IS ALREADY
+/ IN THE PST WHEN WE GO LOOK FOR
+/ IT: (1) REDUCE THE OFF-PAGE SYM.
+/ CTR. BECAUSE OFF-PAGE POINTER (FOR
+/ EITHER NORMAL OR # REFERENCES) ARE
+/ NO LONGER NEEDED. (2) REDUCE
+/ OBACTR BY THE NO. OF EXTRA WORDS
+/ OF CODE DUE TO THIS SYMBOL.
+/SUBRS. CALLED: OBNSYM(LFS),SPSTB,PSTDEF
+/
+CPLFS, 0
+ TAD I RECTI /ARE WE RECOUNTING?
+ SZA CLA
+ JMP I CPLFS /YES ... RETURN
+ TAD LFS
+ SNA
+ JMP I CPLFS /NONE THERE
+ CDF 00
+ DCA I LFSPTR /PLACE ON LFS TABLE
+ ISZ LFSPTR /INCREMENT LFS TABLE POINTER
+ CDF 10
+ ISZ I PTCPR /SET LFS BIT ON PAGE TABLE
+ JMS I OBSYM
+ LFS
+ JMS I SPSTAB /IS IT ON THE PAGE SYMBOL TABLE
+ JMP CPLFS3 /NO ... SKIP DECREMENTING
+ DCA TEM1 /CLR
+ TAD PASS /SKIP DECREMENTING IF PASS 2
+ SNA CLA
+ TAD I PSTCPR /CK USE
+ AND K3
+ CLL RAR
+ SZL
+ ISZ TEM1 /NORMAL
+ SZA CLA
+ ISZ TEM1 /#
+ TAD TEM1 /SUBTRACT
+ CIA
+ TAD OPSCTR
+ DCA OPSCTR
+ TAD I PSTCPR /EXTRACT SHARE OF OBACTR DUE
+ AND C3774 /TO THIS SYMBOL
+ CLL RTR /MOVE TO LOW ORDER
+ CIA /SUB. FROM OBACTR
+ TAD OBACTR
+ DCA OBACTR
+CPLFS3, JMS I PSTDEP
+ CLA CMA CLL /SET BANK UNKNOWN (THE CLL IS USED ELSEWHERE)
+ DCA BANK
+ TAD LFS /SAVE IN CASE OF ERROR
+ DCA LLFS
+ DCA LINE /ZERO LINE COUNT FROM LAST LFS
+ JMP I CPLFS
+C3774, 3774
+NUMSGP, NUMSGN
+PSTDEP, PSTDEF
+LLFS, 0
+
+
+/
+/UTILITY FOR SETC04,SETC08,SETC13
+/NOT USED ELSEWHERE
+/CALLING SEQUENCE: DESIRED BANK SETTING IN AC
+/ JMS INCOBA
+/ RETURN WITH AC=0
+/FUNCTION:(1) SET BANK AS SPECIFIED
+/ (2) INCREMENT OFF-BANK ADDITION CTR
+/ BY 1 OR 2: 2 IF PREVIOUS INSTR.
+/ WAS A SKIP-TYPE, 1 OTHERWISE.
+/
+INCOBA, 0
+ DCA BANK
+ TAD LSTSKP /LAST INSTRUCTION SKIP INDICATOR
+ SZA CLA /WAS LAST INSTRUCTION A SKIP INSTRUCTION
+ ISZ OBACTR /+ OLD VALUE OF OFF BANK ADDITION COUNTER
+ ISZ OBACTR /FOR NEW VALUE OF OFF BANK ADDITION COUNTER
+ JMP I INCOBA
+SET1AP, SET01A
+\f*5400
+/
+/ ROUTINE TO ASSEMBLE THE PAGE HELD IN THE CURRENT SET OF TABLES
+
+/THIS IS THE MAIN PASS1 ASSEMBLY ROUTINE
+/(NOT USED BY PASS2)
+/ASMBL GOES THRU ENTIRE PAGE TABLE
+/FLOW: (1) CALL A1 TO INIT. PAGE ASSEMBLY
+/ (2) GET ITEM OFF P.T.
+/ (3) CALL ASM02 TO ASSEMBLE ITEM
+/ (4) LOOP BACK TO (2) TIL DONE WITH PAGE
+/ (5) CALL A2 TO ASM. LITERALS
+/ASMBL IS CALLED TWICE BY L55 FOR
+/EACH PAGE OF CODE.
+/
+ASMBL, 0
+ JMS A1
+ JMS I ILC4PT /OUTPUT PAGE ORIGIN
+ JMS I INIS /DO INITS.
+ TAD PTSZE /PLACE - SIZE OF PAGE TABLE
+ CIA
+ DCA INDX1 /IN AN INDEX LOCATION
+ TAD LFSBSE /SET UP LFS TABLE POINTER
+ DCA LFSPTR
+ CLA CMA
+ DCA PHASE /SET PHASE SWITCH TO ASSEMBLY
+ JMS I ASM02I /SKIP INCREMENTING POINTERS THE FIRST TIME
+ JMS I ISSI /INCREMENT PAGE TABLE POINTERS
+ ISZ INDX1 /OVER YET
+ JMP .-3
+ JMS A2
+ JMP I ASMBL
+ISSI, ISZPT
+
+
+/
+/ASSEMBLY ROUTINE TO FINISH OFF A PAGE
+/(1) PUTS OUT PAGE ESCAPE
+/(2) LITERAL POOL (BY CALLING OAPLT)
+/(3) GET READY FOR NEXT PAGE
+/
+A2, 0
+ JMS I SAVLNP /STOP NEXT LINE LISTING
+ TAD APMSW /ARE WE IN AUTOMATIC PAGING MODE
+ SZA CLA
+ JMP A2NONA /NO ... DONT SEND PAGE ESCAPE
+ TAD PGEESC /SIZE OF PAGE ESCAPE REQUIRED
+ RTR /2 BIT TO LINK
+ SZL CLA
+ JMP ASM01A /2 INSTRUCTION PAGE ESCAPE
+ /4 INSTRUCTION PAGE ESCAPE
+ JMS I WRITEP
+ JMS I OUTBIN /JMP NEXT TO LAST LOC ON THIS PAGE
+ K5376
+ 0
+ ISZ ILC /FOR BENEFIT OF "WRITE"
+ CLA CMA
+ JMS A2SUBR /OUTPUT JMP AND LITERAL TABLE
+ JMS I OUTSKP /OUTPUT 2 SKIP INSTRUCTIONS
+ JMS I OUTSKP
+ JMP ASM01B /RETURN
+/
+ASM01A, JMS A2SUBR /OUTPUT JMP AND LITERAL TABLE
+ JMS I WRITEP
+ JMS I OUTBIN /PLACE A NOP IN THE LAST LOCATION
+ K7000
+ 0
+ASM01B, JMS I RELNP /RESTORE NEXT LINE FOR LISTING
+ TAD ACTR /REMAINS 1 DURING PASS 2
+ SZA CLA
+ JMP I A2 /EXIT IF LISTING OR 2ND ASSEMBLY
+ TAD PUPGE /SAVE ESCAPE ON PUSH DOWN LIST
+ CDF 00
+ DCA I PEPTR
+ CDF 10
+ ISZ PEPTR /MOVE STACK PTR
+ JMP I A2 /RETURN
+
+A2NONA, JMS I OUAPLT
+ DCA PUPGE /CLR
+ JMP ASM01B
+
+/SUBROUTINE TO ELIMINATE SOME COMMON CODE
+/
+A2SUBR, 0
+ TAD K177
+ TAD PAG
+ DCA A2TEMP /SET ILC IN CASE NO LITERALS
+ JMS I WRITEP
+ JMS I OUTBIN
+ K5377
+ 0
+ JMS I OUAPLT /OUTPUT LITERAL TABLE
+ TAD A2TEMP
+ DCA ILC /SET ILC TO 176 OR 177 IN PAGE
+ JMS I ILC4PT
+ JMP I A2SUBR /RETURN
+A2TEMP, 0
+
+
+ILC4PT, ILC4
+ASM02I, ASM02
+INDX1, 0
+INIS, INISUB
+OUAPLT, OAPLT
+SAVLNP, SAVLIN
+RELNP, RELINE
+PEPTR, PEBSE
+REDUCE, 0
+CDFSKP, JMS CDFSK
+
+
+/
+/INITIALIZE A PAGE ASSEMBLY
+/
+A1, 0
+ TAD PAG /MOVE PAGE TO ILC
+ DCA ILC
+ DCA LITSIZ /ZERO LITERAL TABLE SIZE
+ TAD PASS
+ SNA CLA
+ JMP I A1 /EXIT IF PASS 1
+ CDF 00
+ TAD I PEPTR /GET NEXT PAGE ESC FROM STACK
+ CDF 10
+ ISZ PEPTR /MOVE PTR
+ DCA REDUCE
+ JMP I A1
+/
+/ DUMMY PSEUDO OP
+/
+PDUMMY, JMS I GETSYM /GET NEXT INPUT ITEM
+ SKP /NOTHING THERE
+ JMP .+3 /SYMTOL
+ NOP /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ TAD USE /MST USE WORD
+ AND K3403 /SAVE SYMBOL LENGTH, TYPE BITS, AND DEF BIT
+ TAD K20 /ADD CORRECT MST BIT FOR DUMMY
+ DCA USE /FOR CORRECT CODE WORD
+ JMP I NULLP /EXIT TO GET NEXT LINE
+K3403, 3403
+
+
+/
+/COMPUTE CURRENT PAGE SIZE
+/ENTER WITH AC=0
+/EXIT WITH PAGE SIZE IN AC
+/
+CPGES, 0
+ TAD APMSW /OMIT PGEESC IF NON-AUTO PAGING
+ SNA CLA
+ TAD PGEESC /+SIZE OF ESCAPE REQUIRED
+ TAD PTSZE /SIZE OF PAGE TABLE
+ TAD LTSZE /+SIZE OF LITERAL TABLE
+ TAD OPSCTR /+OFF PAGE SYMBOL COUNTER
+ TAD OBACTR /+OFF BANK ADDITION COUNTER
+ DCA PSTDEF /STORE IN TEM.
+ TAD PSTDEF /GET IT BACK
+ TAD PAG /AND CHECK FOR 7600 PAGE OVERFLOW
+ AND K7600
+ TAD K200
+ SNA CLA
+ SERROR /OVERFLOW-ERROR S
+ TAD PSTDEF /O.K. GET PAGE SIZE, WHICH
+ JMP I CPGES /IS DESIRED RESULT
+
+
+/ROUTINE TO SET DEFINED BIT ON PST
+/USED BY CPLFS & ANUMCK
+
+PSTDEF, 0
+ TAD I PSTCPR /PROTECT CODES
+ SMA
+ TAD K4000 /SET DEFINED BIT ON PST
+ DCA I PSTCPR
+ JMP I PSTDEF
+\f*5600
+/
+/ CONSTANT FOR AN ADDRESS FIELD SYMBOL
+/
+ASM05, TAD I PTSPR /ACTUAL BINARY CONSTANT
+ AND K7600 /IS IT ON PAGE ZERO
+ SZA CLA
+ JMP I ASM5CI /NO
+ TAD I PTSPR /ADD IN PAGE ZERO ADDRESS
+ DCA TEMP6
+ TAD I PTCPR /YES ... IS IT INDIRECT
+ AND K400
+ SNA CLA
+ JMP ASM00 /EXIT TO COMMON AREA
+ TAD TEMP6
+ JMP I ASM5AI
+ASM5AI, ASM12E
+ASM5CI, ASM05C
+/
+/ OFF BANK DIRECT (COMMON DIRECT)
+/
+ASM08, JMS I NSCHKP
+ TAD VAL /ACTUAL ADDRESS IN BANK ZERO
+ DCA S1 /TO 2 WORD LITERAL TABLE SEARCH LOCATION
+ CLA IAC
+ DCA S0 /ABSOLUTE SEARCH
+ JMS I SERALP /GET A PAGE ADDRESS
+ TAD K400 /ADD INDIRECT BIT
+ DCA TEMP6
+ TAD BANK /BANK INDICATOR
+ SNA CLA /IS IT SET
+ JMP ASM00
+ DCA I ASMX5I
+ TAD KCDF1A
+ DCA I ASMX4I
+ TAD CDZSKI
+ DCA I ASMX6I
+ DCA TEM7
+ JMP I ASME7I
+ASMX5I, ASMX5
+ASMX4I, ASMX4
+KCDF1A, KCDF10
+ASMX6I, ASMX6
+ASME7I, ASME7
+CDZSKI, CDZSKP
+SERALP, SRALT
+NSCHKP, NSCHK
+
+/
+/ASM02 IS THE HEART OF ASSEMBLY
+/IT IS CALLED ONCE FOR EACH ITEM ON
+/THE PAGE TABLE.
+/IT CONSISTS OF MANY PARTS, ONE FOR
+/EACH BASIC TYPE OF INSTR. TO BE
+/ASSEMBLED PLUS VARIOUS COMMON EXITS
+/
+ASM02, 0
+ DCA LFS /ZERO LFS INDICATOR
+ TAD PASS
+ SZA CLA
+ JMS I GETBAP /RESTORE BANK & LSTSKP IF PASS2
+ JMS I LFSCHK /PROCESS LFS IF ANY
+ JMS I ANCHK /PROCESS BSS 0 IF ANY
+KCDF00, CDF 00
+ TAD I PTOPR
+KCDF10, CDF 10
+ DCA OP
+ TAD I PTCPR
+ AND K40 /IS IT A SKIP INSTRUCTION
+ DCA CURSKP /YES ... SET SKIP INDICATOR
+ TAD I PTCPR
+ AND K10 /IS IT A PSEUDO OP (PAR)
+ SZA CLA
+ JMP I ASM03I /YES ... EXIT
+ TAD I PTCPR
+ AND K4 /IS IT A MEMORY REFERANCE INSTRUCTION
+ SZA CLA
+ JMP ASME1 /NO
+ TAD I PTCPR /PT CODE WORD
+ AND K20 /IS AFS A CONSTANT
+ SZA CLA
+ JMP ASM05 /YES
+ TAD I PTCPR /PT CODE WORD
+ AND K2 /IS AFS A LITERAL
+ SZA CLA
+ JMP I ASM06I /YES
+ TAD I PTSPR /AFS ID WORD FOR SYMBOL TABLE
+ DCA AFS /TO DIRECTLY ADDRESSABLE LOCATION
+ JMS I OBSYM /GET ITS POINTERS TO MST
+ AFS
+ TAD I PTCPR /PT CODE WORD
+ AND K400 /IS OP INDIRECT
+ SZA CLA
+ JMP I ASM2AI /YES
+ JMS I UZTST /TEST FOR OFF BANK OR ABSOLUTE
+ ASM08 /OFF BANK
+ ASM09 /ABSOLUTE
+ JMP I ASM07I /NO
+ASM2AI, ASM02A
+ASM03I, PPAR1
+ASM06I, ASM06
+ASM07I, ASM07
+ANCHK, ANUMCK
+UZTST, USETST
+/
+/ END OF LINE NECESSITIES
+/
+ASM00, TAD TEMP6
+ASME1, TAD OP
+ASME2, DCA TEM1
+ JMS I WRITEP
+ JMS I OUTBIN
+ TEM1
+ASME1X, 0
+ASM01, JMS I CMNASM /SET BANK=1 AFTER A JMS
+ JMS ASMCMN /SET BANK AND LSTSKP
+ DCA SKPSAV /SAVE CURSKP IN SKPSAV
+ TAD BANK /SAVE FOR PROTECTION DURING LISTING
+ DCA BNKSAV
+ ISZ ILC /INCREMENT ILC
+ASM02R, JMP I ASM02 /USED AS OFF-PAGE RETURN
+ SERROR /ILC OVERFLOWED 7777 - PROGRAM TOO BIG
+CMNASM, CMNSET
+GETBAP, GETBAS
+BNKSAV, 0
+SKPSAV, 0
+OPISUB, JMS OPIS
+OBISUB, JMS OBIS
+
+/SUBROUTINE TO UPDATE BANK,LSTSKP,LSTBNK
+/
+ASMCMN, 0
+ TAD LSTSKP /IS LAST INSTRUCTION A SKIP INSTRUCTION
+ SNA CLA
+ JMP .+10 /NO
+ TAD LSTBNK /YES ... LAST BANK
+ CIA
+ TAD BANK /+CURRENT BANK
+ SNA CLA /ARE THEY THE SAME
+ JMP .+3 /YES
+ CLA CMA /NO ... SET BANK UNKNOWN
+ DCA BANK
+ TAD CURSKP /PLACE CUR SKIP INDICATOR
+ DCA LSTSKP /AS LAST SKIP INDICATOR
+ TAD BANK /PLACE CURRENT BANK
+ DCA LSTBNK /IN LAST BANK INDICATOR
+ TAD LSTSKP
+ JMP I ASMCMN
+\f*6000
+/
+/
+/ INDIRECT DUMMY ARGUMENT
+/
+ DUMSUB
+ASM10, TAD I .-1
+ DCA TEMP6
+ CLA CMA /SET BANK UNKNOWN
+ JMP ASME3 /EXIT FOR SKIP CHECK
+/
+/ OFF BANK INDIRECT (INDIRECT COMMON)
+/
+ OBISUB
+ASM11, TAD I .-1
+ DCA TEMP6
+/
+
+TEMP6=EXP
+ASME3, DCA BANK /SET C(AC) IN BANK
+ TAD LSTSKP /WAS LAST A SKIP?
+ SNA CLA
+ JMP ASME4 /NO
+//FOLLOWING 6 LINES HAVE BEEN
+//MOVED TO 6600 TO MAKE ROOM FOR V03
+ JMP I .+1
+ ASMEXT
+// JMS I OUTSKP /YES, OUTPUT SKP
+// TAD ILC /GET PG.LOC.PTR.
+// TAD K4 /+4
+// AND K177
+// TAD K5200A /OUTPUT JMP .+4
+// DCA TEM1
+REEASM, JMS I WRITEP
+ JMS I OUTBIN
+ TEM1
+ 0
+ ISZ ILC /INCREMENT PG.LOC.PTR.
+ASME4, JMS I WRITEP
+ JMS I OUTBIN /OUTPUT JMS TO
+ TEMP6 /OBISUB,OPISUB, OR DUMSUB
+ 0
+ ISZ ILC
+ JMS I ASM10B /PPAR3S
+ ISZ ILC
+ TAD OP
+ TAD K407
+ JMP I ASME2P
+ASME2P, ASME2
+ASM02A, TAD USE /AFS MST USE WORD
+ AND K20 /IS AFS A DUMMY ARGUMENT
+ SZA CLA
+ JMP ASM10 /YES
+ JMS I UZETST /TEST FOR OFF-BANK OR ABSOLUTE
+ ASM11 /OFF-BANK
+ ASM12 /ABSOLUTE
+ JMP I ASM13I /NO
+ASM10B, PPAR3S
+ASM13I, ASM13
+K407, 0407
+ASME5A, TAD OP
+ SPA CLA /BANK NEED NOT BE CURRENT FOR A JMP OR JMS
+ JMP ASME6+2 /WHICH IS NOT EXPLICITLY INDIRECT
+ASME5, TAD BANK
+ SMA SZA CLA
+ JMP ASME6+2
+ASME7, TAD LSTSKP
+ SZA CLA
+ JMP .+7
+ JMS I WRITEP
+ JMS I OUTBIN
+ASMX4, KCDF00
+ASMX5, 5
+ ISZ ILC
+ JMP ASME6
+ JMS I WRITEP
+ JMS I OUTBIN
+ASMX6, CDFSKP
+ 0
+ ISZ ILC
+ JMS I OUTSKP
+ASME6, TAD TEM7
+ DCA BANK
+ TAD K5
+ DCA ASMX5
+ TAD KCDFA
+ DCA ASMX4
+ TAD CDFSKI
+ DCA ASMX6
+ IAC
+ DCA TEM7
+ JMP I .+1
+ ASM00
+CDFSKI, CDFSKP
+ASME1I, ASME1
+KCDFA, KCDF00
+UZETST, USETST
+
+/
+/ SYMBOL TABLE TYPEOUT FLAG TYPEOUT ROUTINE
+
+/CALL SEQ.: TAD USE /GET TYPE BITS
+/ RTL
+/ RTL
+/ JMS STFT
+/ RETURN
+/USED ONLY BY PRSYM
+/
+STFT, 0
+ AND K3 /MASK OUT TYPE BITS
+ SNA
+ JMP STFT3 /ABSOLUTE SYM.
+ TAD M3 /CK FOR NEW OPDEF
+ SNA
+ JMP STFT2 /YES
+ IAC
+ SNA
+ JMP STFT5 /EXTERNAL
+ SZL CLA
+ JMP STFT1 /DEFINED
+ TAD K2516 /"UN"
+ JMS I CTYPE
+ TAD K0406 /"DF"
+STFT0, JMS I CTYPE /TYPE FLAG
+STFT1, CLA /WE MUST HAVE A CLEAR AC
+ JMP I STFT /RETURN
+K2560, 2560
+K1720, 1720
+
+STFT2, TAD K1720 /TYPE "OP"
+ JMP STFT0
+STFT3, TAD USE
+ AND K40
+ SZA CLA
+ JMP STFT4 /COMMON
+ TAD K0102 /"AB"
+ JMS I CTYPE
+ TAD K2300 /"S "
+ JMP STFT0
+STFT4, TAD K0317 /"CO"
+ JMS I CTYPE
+ TAD K1500 /"M "
+ JMP STFT0
+
+K0102, 102
+K0317, 317
+K2300, 2300
+K1500, 1500
+K2516, 2516
+K0406, 406
+K0530, 530
+K2400=SLITAB
+
+STFT5, TAD K0530 /"EX"
+ JMS I CTYPE
+ TAD K2400
+ JMP STFT0
+\f*6200
+/
+/ LOCAL DIRECT REFERANCE
+/
+ASM07, JMS I SPSTAB /IS AFS ON PST
+ JMP ASM07A /NO ... ROUTINE PLACES IT THERE
+ TAD I PSTCPR /PST CODE WORD
+ SMA CLA /IS SYMBOL ON PAGE
+ JMP ASM07A /NO
+ JMS NSCHK
+ TAD VAL /AFS MST VALUE
+ AND K177 /SAVE PAGE ADDRESS
+ TAD K200 /ADD PAGE BIT
+ JMP I AS00I4 /
+ASM07A, TAD I PTSPR /ACTUAL SYMBOL
+ DCA S1 /TO 2 WORD LITERAL TABLE SEARCH LOCATION
+ JMS NSCHK
+ CLL RTL
+ TAD K2 /RELOCATABLE SEARCH
+ JMP ASM05C+3
+ASM09B, JMS NSCHK
+ TAD VAL /DIRECT NON-PAGE 0 ABSOLUTE
+ SKP
+/
+/
+/ NON PAGE ZERO CONSTANT ADDRESS
+/
+ASM05C, TAD I PTSPR /ACTUAL BINARY CONSTANT
+ DCA S1 /TO 2 WORD LITERAL TABLE SEARCH LOCATION
+ CLA IAC
+ DCA S0 /ABSOLUTE SEARCH
+ JMS I SERALT /GET A PAGE ADDRESS
+ TAD K400 /ADD INDIRECT BIT
+ DCA TEMP6
+ JMP I .+1
+ ASME5A /EXIT FOR SKIP CHECK IF OP IS NOT JMP OR JMS
+/
+/ DIRECT ABSOLUTE OR EXTERNAL
+/
+ASM09, JMS NSCHK
+ TAD VAL /ABSOLUTE SYMBOL VALUE
+ AND K7600 /IS SYMBOL ON PAGE ZERO
+ SZA CLA
+ JMP ASM09B /NO
+ JMS NSCHK
+ TAD VAL /ADD IN PAGE ZERO ADDRESS
+ JMP I AS00I4 /
+AS00II, ASME5
+/
+/ LITERAL FOR AN ADDRESS FIELD SYMBOL
+/
+ASM06, TAD I PTSPR /ACTUAL LITERAL
+ DCA S1 /TO 2 WORD LITERAL TABLE SEARCH LOCATION
+ CLA IAC
+ DCA S0 /ABSOLUTE SEARCH
+ JMS I SERALT /GET A PAGE ADDRESS
+ JMP I AS00I4 /EXIT FOR SKIP CHECK
+AS00I4, ASM05+5
+OUTSK, 0
+ JMS I WRITEP
+ JMS I OUTBIN
+ K7410
+ 0
+ ISZ ILC
+ JMP I OUTSK
+SERALT, SRALT
+/
+/ INDIRECT ABSOLUTE
+/
+ASM12, TAD VAL /AFS MST USE WORD
+ AND K7600 /IS IT ON PAGE ZERO
+ SZA CLA
+ JMP ASM12F /NO
+/
+/ INDIRECT PAGE ZERO ABSOLUTE SYMBOL
+/
+ JMS NSCHK
+ TAD VAL /SAVE PAGE ZERO ADDRESS
+ASM12E, TAD K400 /ADD INDIRECT BIT
+ DCA TEMP6
+ JMP I AS00II
+/
+/ INDIRECT NON PAGE ZERO ABSOLUTE SYMBOL
+/
+ OPISUB
+ASM12F, TAD I .-1
+ DCA TEMP6
+ TAD BANK
+ JMP I AS00I3 /EXIT FOR SKIP CHECK
+AS00I3, ASME3
+K5377, 5377
+/
+/ LOCAL INDIRECT REFERANCE
+/
+ASM13, JMS I SPSTAB /IS AFS ON PST
+ JMP ASM14 /NO ... MUST BE OFF PAGE
+ TAD I PSTCPR /YES ... PST CODE WORD
+ SMA CLA /IS AFS ON PAGE
+ JMP ASM14 /NO
+ JMS NSCHK
+ TAD VAL /AFS VALUE FROM MST
+ AND K177 /SAVE PAGE DISPLACEMENT
+ TAD K600 /ADD PAGE AND INDIRECT BIT
+ DCA TEMP6 /SAVE
+ JMP I AS00II /GO OUTPUT INSTRUCTION
+/
+/ OFF PAGE INDIRECT
+/
+ OPISUB
+ASM14, TAD I .-1
+ DCA TEMP6
+ CLA IAC /SET BANK TO CURRENT
+ JMP I AS00I3 /EXIT FOR SKIP CHECK
+NSCHK, 0
+ TAD I PTCPR
+ AND K2000
+ SZA CLA
+ IAC /ITS A #
+ JMP I NSCHK
+
+
+/"IF" - CONDITIONAL ASSEMBLY PSUEDO-OP
+
+PIF, JMS I GETSYM
+ JMP PIFERR /NOTHING THERE
+ JMP .+3 /SYM
+ NOP /CON
+ JMP PIFERR /LIT
+ TAD CHR /CK FOR COMMA
+ TAD M254
+ SZA CLA
+ IERROR /NOT A COMMA
+ ISZ X0 /PREVENT FLAGGING COMMA
+ JMS I GETSYM /YES, SET CTR TO SKIP N LINES
+ NOP
+ SKP
+ SKP /I WANT A NUMBER
+PIFERR, IERROR
+ TAD USE /IS SYMBOL DEFINED?
+ AND K400
+ SZA CLA
+ DCA S0 /YES, CONTINUE NORMAL ASSMBLY
+ JMS I SKIPL
+ TAD S0 /GET THE NUM.
+ CIA
+ DCA IFCTR
+ JMP I NULLP
+
+IFCTR, 0
+
+ILC4, 0
+ JMS I OUTBIN
+ ILC
+ 4
+ JMP I ILC4
+
+
+/LAP & EAP PSUEDO-OPS
+
+*6372 /MUST BE AT 6372 OR AT PAGE BOUND. +172 FOR K5376 TO WORK AS SKIP
+PLAP, JMS I SKIPL
+ IAC /LEAVE AUTO-PAGING MODE
+K5376, 5376 /THIS REPLACES A SKIP.*******DO NOT MOVE********
+PEAP, JMS I SKIPL
+ DCA APMSW /ENTER AUTO-PAGING MODE
+ JMP I NULLP
+
+\f *6400
+LISTON, 1411
+ 2324
+ 1116
+ 0700
+ 1716
+ 0000
+HISP, 1011
+ 0710
+ 0023
+ 2005
+ 0504
+ 0020
+ 2516
+ 0310
+ 7700
+RDER, 0022
+ 0501
+ 0405
+ 2277
+ 0000
+ / PART OF MAIN PROGRAM
+ / RECOUNT ROUTINE
+ /FOLLOWING CODE CLEANS UP PST CODES BEFORE RECOUNTING
+CLNPST, CIA
+ DCA IOINIT /SET COUNTER
+ TAD PSTBSE
+ IAC
+ DCA PSTCPR /CODE POINTER
+ TAD I PSTCPR /LOOP
+ AND K4003K /KILL OBAC DUE TO THIS SYM.
+ DCA I PSTCPR
+ ISZ PSTCPR /MOVE PTR
+ ISZ PSTCPR
+ ISZ IOINIT
+ JMP .-6 /NOT DONE
+ JMP I .+1
+ RECRET
+ K4003K, 4003
+/
+/
+/COMMON EXIT FOR DATA-GENERATING PSUEDO-OPS
+/
+POPEX, DCA BSSSW
+ TAD LFS /CK FOR TAG
+ SNA CLA
+ JMP I DCIL1 /NO TAG
+ CMA /DECREMENT PTSZE
+ TAD PTSZE
+ DCA PTSZE
+ JMS I RECTI /YES RECOUNT THE PAGE
+ ISZ PTSZE /RESTORE PTSZE
+ JMS I ISZPTX /RESTORE PT PTRS
+ JMP I DCIL1 /RETURN FOR NEXT LINE
+ISZPTX, ISZPT
+
+
+
+/ROUTINE T0 INITIALIZE I/O DEVICES
+
+C2=JMS I CTYPE
+
+IOINIT, 0
+ CDF 10
+ TAD JL64
+ DCA TYPE
+VN, JMP I VERSI
+IOI, JMS I CRLF
+ TAD JHISP
+ DCA X1
+ TAD M5
+ JMS QUERY
+ JMP RGO
+ TAD JRDER
+ DCA X1
+ TAD M5
+ JMS QUERY
+ JMP RGO
+RGO, JMS KSR
+ TAD JHSR
+ TAD JASR
+ DCA I INDEVP
+ JMS I CRLF
+ TAD JHISP
+ DCA X1
+ TAD M11
+ JMS QUERY
+ NOP
+ JMS KSR
+ JMP .+4
+ TAD TYPE
+ DCA PUNCH
+ JMP IOX
+ TAD JL63
+ DCA PUNCH
+ JMS I CRLF
+ TAD JLIST
+ DCA X1
+ TAD M17
+ JMS QUERY
+ NOP
+ JMS KSR
+ IAC /1 = PUNCH, 0 = TYPE
+IOX, DCA LSTDEV
+ JMP I IOINIT
+
+
+
+QUERY, 0
+ DCA JCOUNT
+ TAD I X1
+ C2
+ KSF
+ SKP
+ JMP I QUERY
+ ISZ JCOUNT
+ JMP .-6
+ ISZ QUERY
+ JMP I QUERY
+KSR, 0
+ KSF
+ JMP .-1
+ KRB
+ DCA TEM1
+ TAD TEM1
+ JMS I TYPE
+ TAD TEM1
+ TAD M331
+ SZA CLA /0="YES"
+ ISZ KSR /NOT "YES"
+ JMP I KSR
+LSTDEV=QUERY
+M331, -331
+JHSR, HSR-ASR
+JASR, ASR
+INDEVP, INDEV
+JL63, L63
+JL64, L64
+JCOUNT=TEM3
+JHISP, HISP-1
+JLIST, LISTON-1
+JRDER, RDER-1
+VERSI, VERNUM
+M5, -5
+M11, -11
+M17, -17
+
+\f*6600
+//
+//PART OF MAIN PROGRAM MOVED FOR V03
+//
+/ROUTINE TO RESTORE BANK AND LSTSKP FOR PASS2
+/WILL NOT FIT INTO ASM02 WHERE IT BELONGS
+
+GETBAS, 0
+ TAD I BNKSAP
+ DCA BANK
+ TAD I SKPSAP
+ DCA LSTSKP
+ JMP I GETBAS
+
+BNKSAP, BNKSAV
+SKPSAP, SKPSAV
+
+/INPUT ROUTINES
+
+HSR, 0
+ DCA TEM10 /CLR TIMER
+ RFC
+HSR1, RSF
+ JMP HSR2
+ RRB
+ JMP I HSR
+HSR2, DCA ASR /WASTE SOME TIME
+ ISZ TEM10 /CK TIMER
+ JMP HSR1 /KEEP TRYING
+REXIT, TAD X3 /CK FOR EMPTY BUFFER
+ TAD BUFBEG
+ SZA CLA
+ JMP .+4 /NO, WE HAVE A PARTIAL BUFFER
+ CDF 10
+ JMP I .+1 /YES TAPE HAS ENDED WITH NO END STATMT
+ ERRE
+ DCA I X3 /FILL END OF BUFFER WITH 0'S
+ TAD X3
+ TAD BUFEN
+ SZA CLA
+ JMP .-4
+ JMP I RG3P /NOW RET. FOR PROCESSING
+
+ASR, 0
+ TAD M50
+ DCA TEM11
+ DCA TEM10
+ASR1, KSF
+ JMP ASR2
+ KRB
+ JMP I ASR
+ASR2, ISZ TEM10
+ JMP ASR1
+ ISZ TEM11
+ JMP ASR1-1
+ JMP REXIT
+
+
+M50, -50
+TEM10, 0
+TEM11, 0
+BUFBEG, 1-DATA
+RG3P, RG3
+BUFEN, 1-LINBUF
+/
+/ ENTRY PSEUDO OPERATION
+/
+PENTRY, JMS I GETSYM /GET NEXT INPUT ITEM
+ SKP /NOTHING THERE
+ JMP .+3 /SYMBOL
+ NOP /CONSTANT
+ IERROR /LITERAL
+ JMS I SKIPL
+ JMS I SREST /PLACE SYMBOL ON EXTERNAL SYMBOL TABLE
+ CLA
+ TAD USE /AFS MST USE WORD
+ AND K403 /SAVE SYMBOL LENGTH (& DEF. BIT FOR PASS 2)
+ TAD K2220 /ADD IN PROPER BITS
+ DCA USE /FOR NEW MST USE WORD
+ JMP I NULLP /EXIT FOR NEXT LINE
+K2220, 2220
+K403, 403
+/
+/
+/
+/INCREMENT PAGE TABLE POINTERS
+/
+ISZPT, 0
+ ISZ PTCPR /INCREMENT PAGE TABLE CODE POINTER BY 2
+ ISZ PTCPR
+ ISZ PTSPR /INCREMENT PAGE TABLE SYMBOL POINTER BY 2
+ ISZ PTSPR
+ ISZ PTOPR /INCREMENT PT OP CODE POINTER
+ JMP I ISZPT
+/
+/CK CONSTANT FOR BLOCK PSEUDO-OP
+/
+PBSS4, TAD APMSW /AUTOMATIC PAGING?
+ SNA CLA
+ TAD K2 /YES, 176 IS MAXIMUM
+ TAD M200 /NO, 200 IS MAX
+ TAD S0 /CHECK CONSTANT
+ SMA SZA CLA
+ IERROR /TOO BIG
+ TAD S0 /IS CONSTANT 0?
+ SNA
+ JMP I PBSS2J /YES, EQUIVALENCE TAG
+ JMP I PBSS5I /NO, CREATE BLOCK OF THIS SIZE
+PBSS2J, PBSS2
+PBSS5I, PBSS5
+
+/
+/PATCH TO DELETE DEFINED BIT IN PST FOR A TAG
+/EQUIVALENCED TO A LINE THAT OVERFLOWED THE PAGE
+/
+EQVFIX, TAD EQVBIT /WAS THERE SUCH A TAG?
+ SNA CLA
+ JMP I L55CP /NO
+ TAD I EQVBIT /YES, GET PST CODE FOR THIS TAG
+ TAD K4000 /CANCEL DEFINED BIT
+ DCA I EQVBIT
+ TAD K200 /SET EQUIVALENCE BIT FOR NEXT LINE
+ DCA EQVBIT /WHEN NEXT PAGE GETS GOING
+ JMP I L55CP /RETURN TO ASSEMBLE THE PAGE WE HAVE
+L55CP, L55C
+
+
+/
+/CK FOR TYPE OF SYMBOL
+/CALL SEQ: JMS WHATYP
+/ RET. IF USER SYMBOL
+/ RET. IF OP SYMBOL
+/
+WHATYP, 0
+ TAD USE
+ AND K3000
+ TAD M3000
+ SNA CLA
+ ISZ WHATYP
+ JMP I WHATYP
+
+
+/
+/EXECUTE ISZ GTSYM (MOVE RETURN POINTER) ONLY IF IFCTR .GE. 0
+/OTHERWISE MOVE LINE PTR TO NEXT SLASH, SEMI-COLON OR CAR.RET.
+/& ISZ IFCTR & TREAT AS A NULL LINE.
+/
+CKIF, 0
+ TAD I IFCT /IS CONDITIONAL NON-ASM IN EFFECT?
+ SPA CLA
+ JMP .+3 /YES: DO NOT ASMBL LINE
+ ISZ I GETSYM /NO, MOVE RETRN PTR & CONT. AS USUAL
+ JMP I CKIF
+ ISZ I IFCT /COUNT IGNORED LINE
+ NOP
+ TAD CHR /MOVE LINE PTR TO END OF LINE
+CKIF2, SNA
+ JMP CKIF3 /FOUND A CR
+ TAD M257
+ SNA
+ JMP CKIF3 /SLASH
+ TAD M14
+ SNA CLA
+ JMP CKIF3 /SEMI-COLON
+ JMS I GETCHR /TRY NEXT
+ JMP CKIF2
+CKIF3, JMP I .+1
+ ITM15
+M257, -257
+M14, -14
+IFCT, IFCTR
+\f*6776
+
+/PAGE SYMBOL TABLE (200 WORDS)
+/DOUBLE WORD ENTRIES
+/REBUILT FOR EACH CORE PAGE OF CODE
+/EVERY SYMBOL DEFINED OR REFERENCED ON
+/GIVEN PAGE IS ENTERED
+/TYPICAL ENTRY*: WD1=SYMBOL ID
+/ WD2=CODE BITS
+/SYMBOL ID=ADDRESS OF SYMBOL ENTRY IN MAIN SYM. TAB
+/CODE: BIT0=1 IF SYM. DEF. ON CUR. PAGE
+/ BIT11=1 IF SYM REFERENCED NORMALLY BY A MR1 ON THE PG.
+/ BIT10=1 IF SYM. REF'D. WITH A #
+/ BITS 1-9 USED FOR COUNTING AMOUNT OF OBACTR
+/ WHICH IS DUE TO THIS SYMBOL
+/SYMBOLS ARE ENTERED ON PST IN ORDER OF APPEARENCE
+/IN SOURCE
+/NO MORE THAN 64 (DEC) SYMBOLS MAY BE REF'D.
+/ON ANY PAGE.
+/NOTE: THE SIZE OF THIS TABLE SHOULD NOT BE
+/INCREASED UNLESS LFS TABLE IS ALSO INCREASED.
+
+
+*7176
+
+/PAGE TABLE (402 WORDS)
+/DOUBLE WORD ENTRIES
+/ONE ENTRY FOR EACH INSTRUCTION TO BE ASSEMBLED
+/ROOM FOR 1 EXTRA ENTRY TO COVER PAGE OVERFLOW
+/A NEW TABLE FOR EACH PAGE OF CODE
+/TYPICAL ENTRY: WD1=CODE BITS
+/ WD2=SYMBOL WORD
+/CODE: BIT1=1 IF # REF
+/ BIT2=1 IF CDF TO CUR BANK
+/ BIT3=1 IF INDIRECT
+/ BIT4=1 IF BLOCK 0 (FOR EQUIVALENCED TAGS)
+/ BIT5=1 IF SPECIAL CALL CONST
+/ BIT6=1 IF SKIP INST.
+/ BIT7=1 IF AFS IS CONST
+/ BIT8=1 IF PARAMETER
+/ BIT9=1 IF OPR OR IOT INST.
+/ BIT10=1 IF AFS IS LITERAL
+/ BIT11=1 IF LFS OCCURS
+/ BIT0 UNUSED
+/THE SYMBOL WORD=0 IF CODE BIT9=1
+/ =THE ACTUAL CONST OR LITERAL IF BITS2,5,7 OR 10=1
+/ =THE SYMBOL ID (MST ENTRY ADDR.) FOR AN ADDR. PARAMETER
+/ OR FOR THE AFS OF AN MRI
+
+
+/
+/TYPE VERSION NUMBER
+/(THIS IS ONCE ONLY CODE)
+/(OVERWRITTEN BY P.S.T.)
+/
+*7000
+/
+VERNUM, JMS I CRLF
+ TAD JVERS
+ DCA X1
+ TAD M26
+ JMS I MTYPE
+ NOP
+ TAD K7000X
+ DCA I VNOP
+ JMP I .+1
+ IOI
+JVERS, VERSN-1
+MTYPE, QUERY
+M26, -15
+VNOP, VN
+K7000X, NOP
+VERSN, 2004 /PDP-8 SABR DEC-08-A2C2-V#
+ 2055
+ 7040
+ 2301
+ 0222
+ 4004
+ 0503
+ 5560
+ 7055
+ 0162
+ 0462
+ 5561 /- VERSION # (1ST DIGIT)
+ 7001 /2ND DIGIT AND PATCH LEVEL
+
+
+\f
+/SABR BANK 1 SECTION
+
+/TABLES
+
+FIELD 0
+
+
+
+*0
+EQUTB, 0 /EQUIVALENCE TABLE
+ /100 WORDS
+ /TABLE IS REINITIALIZED BEFORE EACH PAGE BEGINS
+ /COLLECTION, IF NO EQUIV. IS LEFT FROM PREVIOUS PAGE
+ /MULTIPLE WORD ENTRIES
+ /ONE ENTRY IS MADE FOR
+ /EACH LOC. TAG WHICH HAS
+ /EQUIVALENTS
+ /1ST WORD OF EACH ENTRY
+ /CONTAINS NO. OF OTHER WORDS
+ /IN THE ENTRY
+ /OTHER WORDS ARE SYMBOL ID'S
+ /(MST ADDRESSES) OF SYMBOLS
+ /EQUIVALENT TO THE PARTICULAR
+ /LOCATION TAG
+
+
+*100
+
+/BSEEST, 0 /EXTERNAL SYMBOL TABLE
+ /100 WORDS
+ /SINGLE WORD ENTRIES
+ /CONSISTING OF THE SYMBOL ID (MST ADDRESS)
+ /EACH EXT. SYM. IS ENTRED IN
+ /THE TABLE WHEN IT FIRST
+ /OCCURS IN THE SOURCE AND
+ /ASSIGNED A LOCAL EXT. NUMBER
+ /ACCORDING TO ITS PLACE IN THE
+ /TABLE.
+
+
+*200
+
+/PTOPTB, 0 /PAGE OP CODE TABLE
+ /200 WORDS
+ /SINGLE WORD ENTRIES
+ /ONE FOR EACH ENTRY IN PAGE TABLE
+ /ENTRY=ACTUAL OP CODE FOR
+ /ALL MRI, OPR OR IOT'S
+ /OR 0 FOR ALL PARAMETERS
+ /NEW TABLE FOR EACH PAGE OF CODE
+ /NOTE: THIS TABLE MAY OVERFLOW BY 1 WORD DURING COLLECTION
+ /OVERFLOW CAUSED BY PUTTING INFO ON TABLE BEFORE CK FOR OVERFLOW
+ /NO HARM IF ASSEM. PHASE LIT. TAB FOLLOWS
+
+ CDF CIF 10 /CODE FOR START AT 200
+ JMP I .+1
+ START
+
+*400
+
+/LITBSE, 0 /ASSEMBLY PHASE LITERAL TABLE
+ /200 WORDS
+ /DOUBLE WORD ENTRIES
+ /MUST BE SEPARATE FROM COLL.
+ /PHASE LIT. TAB. BECAUSE BOTH
+ /GOING AT ONCE IN PASS 2.
+ /THIS TABLE CONTAINS NOT
+ /ONLY LITERALS BUT ALSO
+ /OFF PAGE POINTERS
+ /1ST WORD OF ENTRY = 1 OR 2 OR 6
+ /1 MEANS LITERAL &
+ /2ND WORD CONTAINS ACTUAL VALUE
+ /2 MEANS OFF PAGE SYMBOL PTR
+ /& 2ND WORD CONTAINS SYMBOL ID.
+ /6 MEANS OFF PAGE SYM. PTR
+ /WHERE SYMBOL REFERENCED BY A #
+ /2ND WORD AS FOR 2
+ /TABLE BUILT ANEW FOR EACH
+ /PAGE OF CODE.
+
+
+*600
+
+/LFSBSE, 0 /LOC FIELD SYMBOL TABLE
+ /100 WORDS
+ /SINGLE WORD ENTRIES
+ /EACH=SYMBOL ID (MST ADDRESS)
+ /OF THE GIVEN LFS
+ /LFS'S ARE ENTERED IN ORDER
+ /OF THEIR APPEARENCE IN SOURCE
+ /TABLE REBUILT FOR EACH PAGE OF CODE
+ /NOTE: THIS TABLE MUST BE AT LEAST AS LONG
+ /AS THE PST TO PREVENT LFS OVERFLOW
+
+
+
+*700
+
+PEBSE, 0 /PAGE ESCAPE PUSH DOWN LIST
+ /40 WORDS
+ /SINGLE WORD ENTRIES
+ /EACH ENTRY IS 0,2, OR 4
+ /BEING THE VALUE OF THE
+ /PAGE ESCAPE (0,2,OR 4 WORDS)
+ /OF EACH PAGE ASSEMBLED
+ /THESE NOS. ARE SAVED DURING
+ /PASS 1 & USED DURING
+ /PASS 2
+\f*740
+/SORT LISTS
+
+/SORT LIST FOR INITIAL CHAR. OF LITERAL
+SL3, 242 /QUOTE
+ 255 /MINUS
+ 304 /D
+ 313 /K
+ -1 /SORT LIST MUST BE FOLLOWED BY A NEGATIVE
+
+
+
+/BRANCH LISTS
+BL6, RLN15
+ RLN2
+ RLN2
+ RLN3
+ RLN3
+
+/SORT LIST FOR BEGINNING OF INPUT ITEM
+SL2, 255 /MINUS
+ 250 /LEFT PARIN
+ 242 /QUOTE
+SL6, 273 /SEMI-COLON
+ 257 /SLASH
+SL1, 240 /SPACE
+ 211 /TAB
+ 000 /CR
+ -1 /SORT LIST MUST BE FOLLOWED BY A NEGATIVE
+/BRANCH LIST FOR BEGINNING OF INPUT ITEM
+BL2, ITM4 /NEGATIVE
+ ITM8 /LITERAL
+ ITM7 /ALPHA CONSTANT
+ ITM15 /NULL ITEM
+ ITM15 /NULL ITEM
+ ITM2 /IGNORE SPACE
+ ITM2 /IGNORE TAB
+ ITM15 /NULL ITEM
+/BRANCH LIST FOR INITIAL CHAR. OF LITERL
+BL3, ITM7 /GET ASCII VALUE FOR LITERAL
+ ITM10 /SET NEG. SW.
+ ITM11 /SET MODE TO DECIMAL
+ ITM12 /SET MODE TO OCTAL
+
+
+
+
+
+
+*1000
+
+/LTBSE, 0 /COLLECTION PHASE LITERAL TABLE
+ /100 WORDS
+ /SINGLE WORD ENTRIES
+ /CONTAINING ACTUAL VALUES
+ /TABLE CONTAINS NOT ONLY
+ /LITERALS BUT ALSO
+ /POINTERS TO CONSTANT
+ /AND ABSOLUTE ADDRESSES.
+ /TABLE BUILT ANEW FOR
+ /EACH PAGE OF CODE.
+
+/INPUT DATA BUFFER
+/546 (OCTAL) WORDS
+/ALL DATA CHARACTERS READ DIRECTLY INTO THIS BUFFER
+/1 CHAR. PER WORD
+/THE ACTUAL SIZE OF THE BUFFER IS ARBITRARY.
+
+*1100
+
+DATA, 0
+
+
+
+/LINE BUFFER (73 WORDS)
+/CONTAINS ASCII CHARACTERS, 1 PER WORD
+/NULLS & RUBOUTS DONT MAKE IT
+/END OF LINE MARKED BY A 0000
+/CR,LF,FF DON'T GO INTO THE BUFFER
+
+/BUFFER IS LAID OUT AS FOLLOWS:
+
+*1646
+LINBUF, 0 /110(OCTAL) WORDS FOR LINE CHARACTERS
+
+*1756
+/LINEND, 0 /1 EXTRA WORD TO PREVENT OVERFLOW
+ /(GETS THE 0 WHEN LINE IS TOO LONG)
+*1757
+SL7, 215
+ 214
+ 212
+ 240
+ 211 /SORT LIST MUST BE FOLLOWED BY A NEGATIVE
+ -1
+BL1, PTEXT /SPACE
+ PTEXT /TAB
+ TEXERR /000
+BL7, L72S
+ L72X
+ L72+2
+ L72+2
+ L72X
+
+\f
+
+/MAIN SYMBOL TABLE
+
+*2000
+
+
+/ENTRIES ARE COMPOSED OF THE FOLLOWING:
+/ FIRST A 1 WORD HEADER CODE
+/ THEN THE SYMBOL ITSELF IN PACKED 6BIT ASCII (1-3 WORDS)
+/ FINALLY THE 1 WORD BINARY VALUE OF THE SYMBOL
+
+/THE HEADER CODE IS LAID OUT AS FOLLOWS:
+/(A) FOR OP CODE SYMBOLS:
+/ BIT0=1 AFTER THE SYMBOL HAS BEEN PRINTED BY PRSYM
+/ BITS1&2=3 (THESE ARE THE SYMBOL TYPE BITS)
+/ BIT3=1 FOR MEMORY REFERENCE INSTRUCTIONS
+/ BITS4&5=THE MICRO-GROUP FOR OPR INSTRUCTIONS (0 FOR MRI AND IOT INSTS.)
+/ (NOTE: MICRO-GROUP IS SET TO 0 FOR CLA)
+/ BIT6=1 IF THE SYMBOL IS A PSUEDO-OP
+/ BIT7=1 IF THE INST. IS A SKIP TYPE INST.
+/ BIT8=1
+/ BIT9=0
+/ BITS10&11=THE NUMBER OF PACKED ASCII SYMBOL WORDS IN THE ENTRY
+
+/(B) FOR OTHER SYMBOL TYPES:
+/ BIT0 AS ABOVE
+/ BITS1&2=0 FOR ABSOLUTE AND COMMON SYMBOLS
+/ =1 FOR RELOCATABLE SYMBOLS
+/ =2 FOR EXTERNAL SYMBOLS
+/ BIT3=1 AFTER THE SYMBOL HAS BEEN DEFINED
+/ BIT4=1 FOR ENTRY SYMBOLS
+/ BIT5=1 IF THE SYMBOL IS EVER REFERENCED BY A #
+/ BIT6=1 IF THE SYMBOL IS IN COMMON
+/ BIT7=1 IF THE SYMBOL IS A DUMMY SYMBOL
+/ BITS8-11 AS ABOVE
+/MST=.
+ 3053 /ABSYM
+ 0102
+ 2331
+ 1500
+ PABSYM
+ 3052 /ARG
+ 0122
+ 0700
+ PARG
+ 3412 /AND
+ 0116
+ 0400
+ AND 0
+ 3053 /BLOCK
+ 0214
+ 1703
+ 1300
+ PBSS
+ 3052 /CALL
+ 0301
+ 1414
+ PCALL
+ 3053 /COMMN
+ 0317
+ 1515
+ 1600
+ PCOMMN
+ 3112 /CIA
+ 0311
+ 0100
+ CIA
+ 3012 /CLA
+ 0314
+ 0100
+ CLA
+ 3112 /CLL
+ 0314
+ 1400
+ CLL
+ 3112 /CMA
+ 0315
+ 0100
+ CMA
+ 3112 /CML
+ 0315
+ 1400
+ CML
+ 3053 /DECIM
+ 0405
+ 0311
+ 1500
+ PDEC
+ 3053 /DUMMY
+ 0425
+ 1515
+ 3100
+ PDUMMY
+ 3412 /DCA
+ 0403
+ 0100
+ DCA 0
+ 3052 /EAP
+ 0501
+ 2000
+ PEAP
+ 3052 /END
+ 0516
+ 0400
+ PEND
+ 3053 /ENTRY
+ 0516
+ 2422
+ 3100
+ PENTRY
+ 3053 /FORTR
+ 0617
+ 2224
+ 2200
+ PFORT
+ 3212 /HLT
+ 1014
+ 2400
+ HLT
+ 3051 /IF
+ 1106
+ PIF
+ 3053 /CPAGE
+ 0320
+ 0107
+ 0500
+ PIFF
+ 3432 /ISZ
+ 1123
+ 3200
+ ISZ 0
+ 3412 /INC (NON-SKIP ISZ)
+ 1116
+ 0300
+ ISZ 0
+ 3112 /IAC
+ 1101
+ 0300
+ IAC
+ 3012 /IOF
+ 1117
+ 0600
+ IOF
+ 3012 /ION
+ 1117
+ 1600
+ ION
+ 3412 /JMP
+ 1215
+ 2000
+ JMP 0
+ 3412 /JMS
+ 1215
+ 2300
+ JMS 0
+ 3012 /KRB
+ 1322
+ 0200
+ KRB
+ 3032 /KSF
+ 1323
+ 0600
+ KSF
+ 3052 /LAP
+ 1401
+ 2000
+ PLAP
+ 3112 /NOP
+ 1617
+ 2000
+ NOP
+ 3053 /OCTAL
+ 1703
+ 2401
+ 1400
+ POCT
+ 3053 /OPDEF
+ 1720
+ 0405
+ 0600
+ OPDEX
+ 3212 /OSR
+ 1723
+ 2200
+ OSR
+ 3052 /PAGE
+ 2001
+ 0705
+ PPAGE
+ 3053 /PAUSE
+ 2001
+ 2523
+ 0500
+ PPAUSE
+ 3012 /PLS
+ 2014
+ 2300
+ PLS
+ 3032 /PSF
+ 2023
+ 0600
+ PSF
+ 3053 /REORG
+ 2205
+ 1722
+ 0700
+ PRORG
+ 3053 /RETRN
+ 2205
+ 2422
+ 1600
+ PRTN
+ 3112 /RAL
+ 2201
+ 1400
+ RAL
+ 3112 /RAR
+ 2201
+ 2200
+ RAR
+ 3012 /RFC
+ 2206
+ 0300
+ RFC
+ 3012 /RRB
+ 2222
+ 0200
+ RRB
+ 3032 /RSF
+ 2223
+ 0600
+ RSF
+ 3112 /RTL
+ 2224
+ 1400
+ RTL
+ 3112 /RTR
+ 2224
+ 2200
+ RTR
+ 3232 /SKP
+ 2313
+ 2000
+ SKP
+ 3053 /SKPDF
+ 2313
+ 2004
+ 0600
+ SKPDEX
+ 3232 /SMA
+ 2315
+ 0100
+ SMA
+ 3232 /SNA
+ 2316
+ 0100
+ SNA
+ 3232 /SNL
+ 2316
+ 1400
+ SNL
+ 3232 /SPA
+ 2320
+ 0100
+ SPA
+ 3112 /STA
+ 2324
+ 0100
+ STA
+ 3112 /STL
+ 2324
+ 1400
+ STL
+ 3232 /SZA
+ 2332
+ 0100
+ SZA
+ 3232 /SZL
+ 2332
+ 1400
+ SZL
+ 3232 /SPC=SPA+CLA (USED BY COMPILER)
+ 2320
+ 0300
+ SPA CLA
+ 3412 /TAD
+ 2401
+ 0400
+ TAD 0
+ 3052 /TEXT
+ 2405
+ 3024
+ PTEXT
+ 3012 /TLS
+ 2414
+ 2300
+ TLS
+ 3032 /TSF
+ 2423
+ 0600
+ TSF
+
+
+ACH=20
+ACM=21
+ACL=22
+
+ 0452 /ACH
+ 0103
+ 1000
+ ACH
+ 0452 /ACM
+ 0103
+ 1500
+ ACM
+ 0452 /ACL
+ 0103
+ 1400
+ ACL
+
+II, 0451 /I
+ 1100
+ 0400
+
+STTP=.
+\fCORE1=7600
+*CORE1-1
+
+/THE OCCURRENCE TABLE EXTENDS DOWNWARD FROM HERE
+/TOWARD THE MAIN SYMBOL TABLE
+/& SHARING THE SAME SPACE WITH IT.
+/THIS TABLE IS VARIABLE, BEING COLLAPSED
+/AS MUCH AS POSIBLE DURING USE. THE ONLY
+/THING LEFT ON IT AT THE END ARE UNDEFINED
+/SYMBOLS.
+/THE OCC. TAB. CONTAINS AN ENTRY FOR EVERY
+/REF. TO AN AS YET UNDF. SYMBOL. EACH
+/TIME A SYMBOL IS DEFINED THE TABLE IS SEARCHED
+/TO SEE IF FORWARD REFERENCES TO IT EXIST.
+/IF SO THEY ARE OUTPUT & THE TABLE
+/CONDENSED.
+/ENTRIES CONSIST OF 2 OR 3 WORDS
+/STRUCTURED AS BELOW:
+/HIGH WORD: LOCATION OF REFERENCE
+/LOW WORD: SYMBOL I.D.
+/OPTIONAL WORD: # FLAG
+/THE LOC. WORD CONTAINS THE PROG. ADDR. WHERE
+/THE VALUE OF THE SYM. MUST BE ASSEMBLED
+/THE # FLAG=1 IF IT EXISTS. IT WILL
+/EXIST ONLY FOR THOSE ENTRIES WHERE THE
+/SYM. WAS REF'D. BY A #.
+/THE TABLE IS ALWAYS SEARCHED IN REVERSE
+/FROM LOW CORE UPWARD
+/THE O.T. PTR (OTP) ALWAYS PTS. TO THE NEXT FREE
+/LOCATION BELOW THE TABLE
+/THE TABLE HAS NO IMPORTANCE DURING PASS 2.
+
+
+ /MEMORY IS NOT USED
+
+
+$
+\f
projects / pdp8.git / blobdiff