File: LOAD5.PA of Disk: V50/Source/Source-Listing-PAL-3
(Source file text)
/ OS/8 F4 LOADER, V50A / / / / / FIXES FOR V23 J.K. 1975 / / .CORE ROUTINE- RECOGNIZE CORE RESTRICTION / / / / CHAMGES FOR OS/8 V3D AND OS/78 BY P.T. / .CHANGED VERSION NUMBER TO 24A / .PUT IN NEW DATE ALGORITHM / / VERNUM=50 PATCH="B MREAD=7757 SBLOCK=7776 ESDPG= 7400 /START OF ESD REFERENCE PG IN FIELD 1 LHDR= 7200 /WD0 IN CORE OF LDR HDR IN FIELD 1 OS8SWS= 7643 OSJSWD= 7746 OS8DCB= 7760 OSDATE= 7666 AC7776= CLL STA RAL AC7775= CLL STA RTL AC4000= CLA STL RAR AC2000= CLA STL RTR AC0002= CLA STL RTL / PASS0 DEFINITIONS / ----- ----------- MCTTBL= 6000 /MODULE COUNT TABLE BASE OVTLEN= 2^20^7+2+1 /2 WORDS/OVERLAY, 2 FOR MAIN & 1 FGL OVLTBL= MCTTBL-OVTLEN /(FGL = FOR GOOD LUCK) MODTBL= 21^7+MCTTBL+3 /START OF MODULE TABLE NUMMOD= 7200-MODTBL%3 /NUMBER OF ENTRIES IN MODULE TABLE PTRIO= NDX6 /FLD1;INIT SET TO 7617-1 RALFBF= 7000 /FLD1;BLK TO READ"ESD"FOR FILE CHK /LOADER IMAGE HEADER BLOCK DUMMY SECTION NOPUNCH *LHDR 2 /LOADER IMAGE FILE ID QRTSWP, ZBLOCK 2 /SWAPPER ARGS TO LOAD AND START USER MAIN QHGHAD, ZBLOCK 2 /HIGHEST ADDRESS USED BY THIS PROGRAM QVERNO, 0 /LOADER VERSION NUMBER QDPFLG, 0 /"D.P. HARDWARE REQUIRED" FLAG QUSRLV, ZBLOCK 40 /USER OVERLAY LEVEL DSRN INFO LDBUFS, ZBLOCK 50 /PASS2 BUFFER POINTERS ENPUNCH /RTS ENTRY POINTS /** SOME OF THESE MAY CHANGE IN FUTURE VERSIONS OF RTS ** /** (I HOPE NOT) JARGER= 204 JBAK= 210 JDATE= 203 JDEF= 213 JDISMS= 412 JENDF= 211 JEOFSW= 16 JEXIT= 223 JHANG= 524 JIDLE= 227 JINT= 403 JRDAO= 217 JREADO= 221 JRENDO= 206 JRETRN= 235 JREW= 212 JRSVO= 207 JRUO= 215 JSWAP= 222 JT812= 225 JUERR= 204 JWDAO= 216 JWRITO= 220 JWUO= 214 *0 TMP0, 0 /TMP0-TMP4 FOR GEN. USE TMP1, 0 TMP2, 0 TMP3, 0 *10 /INDEX REGISTERS NDX0, 0 NDX1, 0 NDX2, 0 NDX3, 0 NDX4, 0 NDX5, 0 NDX6, 0 NDX7, OVLTBL-1 /POINTER INTO OVERLAY LENGTH TABLE USR, 200 /USR CALL: COULD BE 200 OR 7700 PPACK, PACK /CHANGED TO TTYO BY ERROR ROUTINE IOFLG, 0 SYMTM3, SYMTBL-3 ORGFLG, 0 RFPTR1, 0 GPTR, 0 LBPTR, 0 TRPCNT, 0 P2FLG, 0 CZFLG, 0 F1FLG, 0 S8FLG, 0 OVRFLO, -1 SWITZ, -1 SVMAIN, -4 /0 IF /S SPECIFIED DPFLG, 0 /MORE PAGE ZERO LOCATIONS GTYP, 0 EPTR, 0 EPT2, 0 ETYP, 0 BPTR, 0 BPT2, 0 REFPTR, 0 RLEN, 0 FTMP0, 0;0 RBLK, 0 FATAL, 0 BP, LDBUFS /POINTER INTO PASS2 BUFFER ARRAY A1, 1;0 /CURRENT ADDRESS IN FIELDS 1-7 LNONUM, 0 LBCNT, 0 BLKCNT, 0 TRAPV, 0;0 BLKSIZ, 0 BSECTP, 0 /POINTER INTO BINARY SECTION TABLE (PASS 2) OUTINH, 0 BLKBEG, 0 NEWBLK, 0 NEWLEN, 0 MCNT, 0 MBGCNT, 0 TMP4, 0 TMP5, 0 PAGE /LOADER STARTS AT 200 ISZ .+2 /NON-CHAIN ENTRY JMP I .+1 /CHAIN ENTRY START /COME HERE TO READ/WRITE THE LOADER IMAGE. LDRIO, 0 /AC=4000 FOR WRITE, 0 FOR READ DCA LDRIOC /STORE READ/WRITE JMS I (NEWBUF TAD BP DCA LDRIOA ISZ LDRIOA TAD I LDRIOA DCA LDRIOB /BLOCK # ISZ LDRIOA TAD I LDRIOA /NUMBER OF BLOCKS LEFT IN SECTION SPA SNA JMP LDRIOR /NULL BUFFER - JUST IN CASE TAD [-4 SMA CLA /IF >4 BLOCKS LEFT ONLY DO 4 TAD [4 CLL RTR RTR RTR TAD LDRIOC /ADD READ/WRITE CDF 0 TAD I (OUTFLD TAD (-CDF DCA LDRIOC /STORE R/W + BLOCK COUNT + FLD BITS TAD BLKBEG DCA LDRIOA JMS I [IOHAN /DF MUST BE 0 HERE! LIMGU /LOADER IMAGE FILE LDRIOC, 0 LDRIOA, 0 LDRIOB, 0 CDF 10 LDRIOR, CLA JMP I LDRIO SETBGX, 0 CLA IAC TAD GPTR JMS SETBPT /EXTREMELY COMMON SEQUENCE JMP I SETBGX SETBPT, 0 DCA BPTR /STORE BPTR CLA IAC TAD BPTR DCA BPT2 /AND PTR TO NEXT WD JMP I SETBPT ORGMSG, TEXT /ILLEGAL ORIGIN/ SYMMSG, TEXT /OVER SYMB/ IOMSG, TEXT %LOADER I/O ERROR% ENTMSG, TEXT %OS/8 ENTER ERROR% PAGE /TTYHAN- TTY HANDLER FOR OUTPUT OF ANY MESSAGE IN ANY FIELD. / MESSAGE MUST BE FIELD CONTAINED & TERMINATE WITH 0 / HANDLER CAN BE CALLED ACROSS FLDS WITH AC CLR. / RTN WITH"IF & DF" SET TO CALLING FLD. / / CALL CDF X /X=FLD OF CALLER*10 / CIF Y /Y=FLD OF TTYHAN*10 / JMS TTYHAN / CDF Z /Z=FLD OF MESS.BUF / BUFADR /MESS BUF. ADDR. / TTYHAN, 0 TAD (6203 /SETUP MICRO INSTR RDF /CDF & CIF FOR RTN DCA CRLFF+1 TAD I TTYHAN /SET UP FLD OF DCA TTYCDF /MESS BUF ISZ TTYHAN CMA TAD I TTYHAN /SET UP MESS BUFF ADDR-1 DCA MESADR ISZ TTYHAN DCA MESADR+1 TTYCDF, 0 JMS CRLF TTYLP, ISZ MESADR+1 JMP .+3 TAD I MESADR JMP HAF ISZ MESADR CLA CMA DCA MESADR+1 TAD I MESADR RTR RTR RTR HAF, AND [77 SNA JMP CRLFF TAD [240 AND [77 TAD [240 JMS TTYO JMP TTYLP CRLFF, JMS CRLF 0 JMP I TTYHAN MESADR, 0 0 RTNOS8, 0 /HERE ON PASS1 FATAL ERROR STA CDF 10 DCA I (OVLTBL /PRINT SYMBOL MAP W/O OVERLAY LENGTH TABLE DOMAP, JMS I (SYMMAP CDF TAD I RTNOS8 /ADDR OF TTY DCA .+3 /MSG JMS I [TTYHAN CDF 0 TAD (TTYO DCA PPACK /FAKE OUT SYMBOL PRINTER TAD LNONUM DCA GTYP /PUT LEVEL AND OVERLAY IN GTYP JMS I (CVLOVL /OUTPUT LEVEL AND OVERLAY AC7775 DCA TMP5 /PRINT 3 DIGIT FILE-WITHIN-OVERLAY TAD MCNT TAD MBGCNT IAC CLL RTL RAL JMS I (CVRT JMS CRLF /OUTPUT CRLF AFTERWARDS JMP I .+1 /RTN TO 7605 /OS8 LDRNAM, 1;0617;2224;2216;1404 /SYS:FORTRN.LD ZBLOCK 5 /NO DEFAULT SYMBOL MAP DEVICE TTYO, 0 TLS TSF JMP .-1 CLA JMP I TTYO / CRLF, 0 TAD (215 JMS TTYO TAD (212 JMS TTYO JMP I CRLF /OS8ER- USED WHEN AN OS/8 ERROR OCCURS WHICH IS FATAL OS8ER, 0 CDF 0 JMS I [TTYHAN CDF 0 /FLD OF MESS BUF SYSERR /ADR OFMESS BUF JMP I [7605 /RTN TO OS8 SYSERR, TEXT /SYSTEM ERROR/ TYTBL, 4040 /CHARS FOR SMAP 0530 /EX (EXTERN) 4040 /GOOD TYPES ARE 4040 /SPACES 1505 /ME (MUL ENTRY) 1523 /MS (MUL SECTN) 4040 /GEN 8MOD SECT 4040 /8MOD COM SECT 4040 /8MOD F1 SECT PAGE /IOHAN- I/O HANDLER 1)FETCHES A OS8 DEVICE HANDLER; / 2)CHKS FOR E.O.FILE;3)ISSUES CALL TO THE HANDLER. / RTN TO CALLER WITH "IOFLG" SET IF / NUM OF BLKS TRANSF LESS THAN REQ AMT. / CAN BE CALLED FROM ANY FLD / IF AC=0,DO ALL OF THE ABOVE. / IF AC=DEV NUM,DO ONLY "FETCH"PART / / CALL CDF X / CIF Y / JMS IOHAN / ADDR /PTR TO UNIT,LEN,STBLK OF FILE IN FLD 1 / ARG(1)/OS8 ARG: FCN CTRL WD / ARG(2)/ " : TRNASF BUF ADR / ARG(3)/ " : REL STBLK OF TRANSF / IOHAN, 0 DCA UNITSV /SAV DEV NUM IF ONE DCA IOFLG /CLR FLG RDF TAD P6201 DCA GETCDF+1 CLA CLL CML RTL /SETUP CIF & CDF FOR TAD GETCDF+1/RTN JMP DCA RTNIO /FETCH A DEV HANDLER OR LOOKUP ENTRY PT /IF DESIRED HANDLER IS IN CORE TAD UNITSV /GET DEV NUM IF ONE SNA CLA /JUST A FETCH? JMP .+3 /NO JMS INQIRE /YES JMP RTNIO TAD I IOHAN /GET PTR TO UNIT(DEV NUM) DCA ULSADR CDF 10 TAD I ULSADR /GET DEV NUM AND [17 SNA JMS I [OS8ER DCA UNITSV JMS INQIRE /CHK FOR E.O.FILE ISZ IOHAN JMS GETCDF TAD I IOHAN /GET FCN CTRL WD CLL RTL /NUM OF PAGES IS CONVRTED RTL /TO NUM BLKS & PUT RTL /IN BITS 8-11 AND [17 DCA TMP0 /NUM BLKS TO TRANSF /SETUP FCN CTRL WD; TRANSF BUF ADR; & ABS STBLK OF TRANSF /FOR OS8 CALL TO HANDLER TAD I IOHAN /FCN CTRL WD DCA FCNWD ISZ IOHAN TAD I IOHAN /TRANSF BUF ADR DCA FCNWD+1 ISZ IOHAN TAD I IOHAN /GET REL STBLK & BUILD TAD TMP0 /ABS STBLK CIA CLL ISZ ULSADR CDF 10 TAD I ULSADR /FILE LEN-(REL STB+NUM BLKS) SNL SZA /E.O.FILE CONDITION? JMP .+3 /YES P7600, CLA 400 /NO JMP SETSBN TAD TMP0 SMA SZA /ANY BLKS TO TRANSF? JMP IOH /YES CLA /NO /CHK IF FILE LEN=0; IF SO DO SEQ STUFF TAD I ULSADR SNA CLA /SEQ DEV? JMP IOH+1 /YES CMA /NO,=-1 IF NUM BLKS TRANSF L.T. REQ DCA IOFLG JMP RTNIO IOH, DCA TMP0 /THIS NUM OF BLKS /UPDATE FCN CTRL WD IN OS8 CALL TAD FCNWD AND (4077 /REMOVE REQ NUM OF PGS DCA FCNWD /& PUT IN THE TAD TMP0 /ALTERED NUM CLL RTR RTR RTR TAD FCNWD DCA FCNWD CMA /=-1 IF NUM BLKS TRANSF L.T. REQ DCA IOFLG /SETUP STARTING BLK NUMBER / SETSBN, ISZ ULSADR CDF 10 TAD I ULSADR /GET ABS STBLK JMS GETCDF /GET DF TAD I IOHAN /ADD REL STBLK DCA FCNWD+2 TAD I IOHAN /UPDATE REL STBLK TAD TMP0 /BY NUM BLKS OF TRANSF DCA I IOHAN /CALL TO THE HANDLER CDF 0 /IOHAN & OS8 DEV HAN IN FLD 0 TAD P7600 /CHK FOR CTRLC KRS TAD (-7603 SNA CLA KSF SKP JMP I [7605 JMS I IOENT FCNWD, 0 0 0 JMP HNDERR /ERROR RETURN OF CALL ISZ IOHAN RTNIO, 0 /CIF INSTR JMP I IOHAN IOENT, 0 ULSADR, 0 UNITSV, 0 / GETCDF, 0 0 JMP I GETCDF HNDERR, JMS I [RTNOS8 IOMSG /INQIRE- DETERMINE IF DESIRED DEV HANDLER IS IN CORE / & IF SO,GET ITS ENTRY PT DVTBL=7647 INQIRE, 0 CDF 10 TAD UNITSV TAD (DVTBL-1 DCA IOENT /ADR OF ENRTY PT IN RESID. TBL TAD I IOENT /GET ENTRY PT IF ONE DCA IOENT TAD IOENT SZA CLA /DEV HAN WAS IN CORE? JMP I INQIRE /YES TAD (7201 /NO DCA P6201+4 TAD UNITSV /GET DEV NUM BK P6201, CDF 0 CIF 10 JMS I USR 1 0 JMS I [OS8ER TAD .-2 DCA IOENT JMP I INQIRE PAGE NXTESD, 0 ISZ EPTR /ADV PTR TO ISZ EPTR /WD 0 OF TAD EPTR /NEXT ENTRY AND [377 /IF AT BLK SNA CLA /BOUNDARY TAD [4 /BUMP IT FOUR TAD EPTR JMS I [SETEPT TAD [3 /CHECK FOR TAD EPTR /END OF DCA TMP0 /ESD TAD I TMP0 /TYPE WD AND [17 /TO AC B8-B11 SZA /LAST ESD? ISZ NXTESD /NO DCA ETYP /SAVE TYPE JMP I NXTESD ADVOVR, 0 /UPDATE PASS1 PASS2 ARGS ISZ MCNT /MORE MODS IN THIS OVR? JMP SAMOVR /YES JMS NXTOVR /SET ARGS FOR NEXT OVER JMP EOLVL /RTN HERE= END OF LEVEL TAD P2FLG /DOING PASS2 ? SMA CLA JMP BY10 /NO TAD (2 /GET NEW LDR TAD BSECTP /IMAGE REL BLK DCA TMP0 /FOR NEXT OVR TAD TMP0 DCA NDX0 TAD I NDX0 /LENGTH OF OVERLAY TAD I TMP0 /PLUS OLD RELATIVE BLOCK DCA I TMP0 /EQUALS NEW RELATIVE BLOCK BY10, TAD LNONUM /ADD 1 TO BITS TAD (20 /4-7 OF LEVEL DCA LNONUM /AND OVR LAY NUM JMP SAMOVR EOLVL, JMS NXTOVR /GET NXT OVR NEW LEVEL JMP SAMOV4 /HERE=END OF ALL LEVELS TAD LNONUM /ADD 1 TO AND [3400 /THE LEVEL TAD (400 /BITS (1-3) DCA LNONUM /AND CLEAR THE OVR BITS TAD P2FLG SMA CLA /DOING PASS2 ? JMP BY7 /NO TAD [4 TAD BSECTP /UPDATE BIN SECTION PTR DCA BSECTP JMP SAMOVR BY7, ISZ I (LEVSYM+2 /SET THE INTERNAL LEVEL SYMBOL TO LEVLN+1 TAD (LEVSYM /ENTER NEW JMS I [LOOK /LEVEL SYMBOL INTO GST TAD [4 TAD LNONUM /SET TYPE DCA I GPTR /TO PROG SECTION IAC /SET PTR TO TAD GPTR /NEW LEVEL DCA I [LVPTR LEVRND, TAD I BPT2 CLL TAD [377 /ROUND UP OLD LEVEL AND [7400 /TO A BLOCK BOUNDARY SZL ISZ I BPTR /MIND THE CARRIES! DCA I BPT2 SAMOVR, TAD [3 /ADV PTR TO TAD RFPTR1 /NXT RALF DCA RFPTR1 /MODULE JMP I ADVOVR SAMOV4, ISZ ADVOVR /BUMP RETURN TAD P2FLG SPA CLA JMP SAMOVR /SKIP ROUNDUP IF PASS 2 JMS I (LEVLUP /MERGE OVERLAY SIZE INTO LEVEL SIZE JMP LEVRND /AND RND UP LAST LEVEL NXTOVR, 0 /HERE AT END OF OVERLAY ISZ MTBL /GET NUM OF TAD I MTBL /MOD IN NXT SNA /OVR JMP I NXTOVR /=END OF LEVEL DCA MBGCNT TAD MBGCNT CIA DCA MCNT TAD P2FLG SMA CLA JMS I (LEVLUP /SET CUR. LEVL =MAX (CUR LEVL, CURNT OVR) ISZ NXTOVR /RTN P+1 IF JMP I NXTOVR /NOT END OF LEVEL SETCNT, 0 TAD (MCTTBL+1 /PTR TO MOD DCA MTBL /COUNT TBL TAD I MTBL /-NUM IN DCA MBGCNT TAD MBGCNT CIA /MAIN DCA MCNT TAD (MODTBL+3 /PTR TO TOP DCA RFPTR1 /OF MOD TBL DCA I (OVRSIZ DCA I (OVRSIZ+1 JMP I SETCNT MTBL, 0 PAGE /LOOKUP OR ENTER A SYMBOL INTO /GLOBAL SYMBOL TABLE (GST). PTR /TO SYMBOL IN FIELD 1 IS IN /AC. USUALLY ITS AN ESD. /RTN P+1=NO MATCH /RTN P+2=MATCH LOOK, 0 DCA TMP0 /PTR TO SYM CDF 10 TAD I TMP0 /SELECT RTR /BUCKET RTR /A-Z, SPACE RTR /OR POUND AND [77 TAD (BUCKET-1 /PTR TO BUCKET LOP5, DCA TMP1 /PTR TO PREV ENTRY TAD I TMP1 /PTR TO NEXT ENTRY SNA /0=BUCKET BOTTOM JMP HOOKIN /NO MATCH IAC /APPEND SYMBOL DCA GPTR /LOOK FOR AC7775 /3 WORD MATCH DCA TMP2 TAD TMP0 DCA EPTR YUCCH, TAD I EPTR CIA CLL TAD I GPTR SZA CLA JMP YECCH /SYMBOLS DIFFER ISZ EPTR ISZ GPTR ISZ TMP2 /ALL MATCH? JMP YUCCH /NO ISZ LOOK /BUMP RTN SETTYP, TAD I EPTR /GET ESD TYPE AND [17 DCA ETYP CLA IAC TAD EPTR JMS I [SETEPT /BUMP EPTR AND SET EPT2 TAD I EPTR /GET ESD NUM RTR /IN B1-B7 RTR /AND SET AND (177 /REFERENCE TAD (ESDPG /POINTER DCA REFPTR TAD I GPTR /SET GST AND [17 /TYPE DCA GTYP /FIELD BITS OF TAD I EPTR /VALUE WORDS AND [7 /CLR DCA I EPTR /HI 9 JMP I LOOK YECCH, SZL /IS NEW GUY LESS THAN GST ENTRY? JMP HOOKIN /YES HOOK-IN HERE TAD I TMP1 JMP LOP5 /TRY NEXT HOOKIN, TAD I TMP1 /GET FWD LINK DCA I NDX4 /TO NEXT INTO TAD NDX4 /NEW. PUT FWD DCA I TMP1 /LINK TO NEW INTO PREV. TAD TMP0 /3 SYM DCA EPTR /INTO GST AC7775 DCA TMP2 TAD I EPTR DCA I NDX4 ISZ EPTR ISZ TMP2 JMP .-4 ISZ NDX4 /SET PTR TO TAD NDX4 /WORD 4 (TYPE) DCA GPTR /OF GST ISZ NDX4 /SET PTR TO NEXT ISZ NDX4 /FREE ENTRY TAD [7 /SEE IF TAD NDX4 /GST IS FULL TAD ENDSYM /END OF GST SPA SNA CLA JMP SETTYP /ITS OK JMS I [RTNOS8 /SYMBOL TABLE SYMMSG /OVER FLOW ENDSYM, 1-OVLTBL SETEPT, 0 DCA EPTR CLA IAC TAD EPTR DCA EPT2 /SET PTR TO BOTH WDS OF DBLWD JMP I SETEPT GETTYP, 0 /ADV GST PTR TAD [7 /TO WD 4 OF TAD GPTR /ENTRY DCA GPTR /CHECK FOR TAD GPTR TAD ENDSYM SMA CLA JMP I GETTYP TAD I GPTR /END OF GST. SZA CLA /IF NOT END, ISZ GETTYP /ISZ RETURN. JMP I GETTYP OLINE, 0 /OUTPUT A LINE OF TEXT TO THE SYMBOL MAP DCA TMP5 OLINLP, TAD I TMP5 JMS I (HAFWD TAD I TMP5 ISZ TMP5 AND [77 SZA CLA JMP OLINLP JMS I [PCRLF /DOUBLE SPACE AFTERWARDS JMS I [PCRLF JMP I OLINE PAGE /HERE TO OUTPUT SYMBOL MAP /EACH SYMBOL IN GST IS 7 WORDS LONG /THE FORMAT IS: /WD0 PTR TO NEXT ALPHABETICAL SYMBOL /WD1 SYMBOL NAME IN PACKED SIX BIT /WD2 ASCII. 00 IS INTERPRETED AS SPACE /WD3 SIX CHARS MAX PER SYMBOL /WD4 B0=1=TRAP VECT SYMBOL ON PASS1 OR / B0=1=PASS2 ERROR, B1-B3=LEVEL NUM / (0-7) B4-B7=OVERLAY NUM (0-17) / B8-B11=TYPE. TYPE FORMAT IS: / 0=END OF ESD TBL (NA TO LDR) / 1=ENTRY POINT / 2=EXTERN / 3=COMMON SECTION / 4=PROGRAM SECTION / 5=MULTIPLE ENTRY POINT / 6=MULTIPLE SECTION / 7=GENERAL 8-MODE SECTION / 10=FIELD1 8-M0DE SECTION / 11=COMMON PG0 8-MODE SECTION / 12-17=UNDEFINED / /WD5 B0-B8=PTR TO PARENT SYMBOL (0R 0) / ON PASS1 =TRAP VECTOR DISPLACEMENT / ON PASS2 / B9-B11=FIELD BITS OF SYMBOL /WD6 ADDR BITS OF SYMBOL /OUTPUT FORMAT OF MAP IS: / /SYMBOL VALUE LEVEL OVRNUM TYPE(*) / /THE TYPE COLUMN IS EITHER 2 BLANKS OR /EX=EXTERN /ME=MULTIPLE ENTRY POINT /MS=MULTIPLE SECTION /ASTERISK MEANS SOME TYPE OF ILLEGAL /REFERENCE TO A SYMBOL AND USUALLY /MEANS A LOADER ORIGINATED TRAP HAS /BEEN GENERATED SOMEWHERE IN THE BINARY /E.G. SUBR GROG AT LEVEL 2 CALLS SUBR /COLUMBO AT LEVEL 1. A USER 7 TRAP /WOULD BE GENERATED IN SUBR GROG, AND /THE SYMBOL COLUMBO WOULD HAVE AN /ASTERISK ASIDE OF IT IN THE TYPE /COLUMN SYMMAP, 0 CDF TAD I (LDRNAM+5 /MAP UNIT SNA /IS IT 0 ? JMP NOMAP /YES, NO MAP TO OUTPUT JMS I [IOHAN /FETCH HANDLER TAD I (LDRNAM+5 /ENTER OUTPUT CIF 10 JMS I USR 3 MPBLK, LDRNAM+6 0 JMP ENTERR /WHOOPS WE HAVE AN ENTER ERROR TAD I (LDRNAM+5 AND [17 CDF 10 DCA I (SMAPU /STORE SYMBOL MAP UNIT TAD (SMAPU /SYMMAP ARGS DCA NDX0 /FOR I/O TAD MPBLK+1 /LENGTH CIA DCA I NDX0 TAD MPBLK DCA I NDX0 TAD (BUCKET /START AT 1ST DCA RLEN /BUCKET (A) TAD (-42 /DO UP UNTIL BUT NOT INCL. DCA RBLK /POUND SIGN AC7775 /INIT PACK ARGS DCA FATAL TAD (RALFBF DCA TMP4 TAD SM600 DCA BLKCNT JMS I [PCRLF TAD (TLINE JMS I (OLINE TAD (STLINE JMS I (OLINE /OUTPUT TITLE AND SUBTITLE TAD I RLEN /1ST SYM LOP10, DCA GPTR TAD GPTR /ANY MORE IN SZA /THIS BUCKET ? JMP JOUSYM /YES ISZ RLEN /NXT BUCKET ISZ RBLK /DONE ALL JMP LOP10-1 /NO ISZ SWITZ /BEEN HERE BEF? JMP DUNMP /YES ALL DONE CLA CMA /SET FOR JUST DCA RBLK /POUND SYMS TAD SVMAIN SNA /DO ONLY #MAIN? JMP LOP10-1 /NO - DO ALL # SYMBOLS PRMAIN, CLA /** REPLACED WITH JMS I (OUTSYM ** DUNMP, TAD [-4 /OUT PUT DCA TMP5 /THE HIGHEST LOCATION TAD A1 /USED BY THE PROGRAM TAD (4060 /FLD BITS JMS HAFWD TAD A1+1 JMS I (CVRT TAD (HLINE JMS I (OLINE /PRINT " = HIGHEST LOC USED" JMS I (PROVLY /PRINT OVERLAY TABLE SM600, CLA /** AC NOT 0 ON RETURN** TAD (214 JMS I PPACK TAD (232 /CTRL Z OUFILP, JMS I PPACK TAD BLKCNT /HAVE WE FILLED TAD [600 /A BLOCK UP COMPLETELY? SZA CLA JMP OUFILP /NO CDF /CLOSE SYMMAP TAD I (SYLST /AC=LENGTH DCA SMPCLN TAD I (LDRNAM+5 /MAP UNIT CIF 10 JMS I USR 4 LDRNAM+6 SMPCLN, 0 JMS I [OS8ER NOMAP, CDF 10 JMP I SYMMAP JOUSYM, JMS I (OUTSYM TAD I GPTR /NEXT SYM TO DO JMP LOP10 HAFWD, 0 /OUTPUT THE 2 6 BIT ASCII CHARS IN AC DCA TMP3 TAD TMP3 /LEFT HALF 1ST RTR RTR RTR JMS SIXTO8 TAD TMP3 JMS SIXTO8 JMP I HAFWD SIXTO8, 0 /CVRT AC FROM AND [77 /6 TO 8 BIT ASCII SZA TAD [240 /TURN ZEROS TO BLANKS AND [77 TAD [240 JMS I PPACK /PUT IN BUFF IN PS/8 FORMAT JMP I SIXTO8 ENTERR, DCA I (DOMAP /CANCEL SYMBOL MAP FROM RTNOS8 JMS I [RTNOS8 /AS WE MASY HAVE COME FROM SYMMAP ENTMSG PAGE /PACK ASCII IN AC INTO OUTPUT BUFF IN /OS/8 3 WORD FORMAT TO 2 12 BIT WORDS PACK, 0 ISZ FATAL /3RD WORD ? JMP ONEOR2 /NO DCA TMP0 /SAVE CHAR AC7776 /BU BUFF PTR TAD TMP4 DCA TMP4 AC7775 DCA FATAL /RESET CNTR JMS ROL /POSITION HI DCA I TMP4 ISZ TMP4 JMS ROL /POSITION LO ONEOR2, DCA I TMP4 ISZ TMP4 ISZ BLKCNT /BLOCK FULL ? JMP I PACK /NO JMS WRBUF TAD SBPTR DCA TMP4 /RESET ARGS TAD (-600 DCA BLKCNT JMP I PACK ROL, 0 TAD TMP0 /3RD CHAR RTL /POSITION RTL /BITS DCA TMP0 /SAV FOR NXT CALL ON LO TAD TMP0 AND [7400 TAD I TMP4 /ADD IN OLDY JMP I ROL WRBUF, 0 /WRITE OUT CDF /SYM MAP JMS I [IOHAN /BUFFER SMAPU /ADDR OF SYM U 200^1!4000!10 /1 BLK OF FLD 1 SBPTR, 7000 /1ST ADDR SYLST, 0 /REL BLK CDF 10 JMP I WRBUF CVRT, 0 /CONVERT AC TO DCA CVRTMP /ASCII NUM TAD TMP5 /-NUM OF DIGITS DCA TMP1 /TO CONVERT LOP7, TAD CVRTMP /CVRT LEFT TO RTL /RIGHT RAL /3 BITS PER DCA CVRTMP /DIGIT TAD CVRTMP RAL AND [7 TAD (260 JMS I PPACK ISZ TMP1 /ENOUGH ? JMP LOP7 /NO JMS I (HAFWD /OUTPUT A PAIR JMP I CVRT /OF SPACES OUTSYM, 0 /DO ONE SYMBOL DCA NDX1 /ADDRESS IN AC ON ENTRY AC7775 DCA TMP2 TAD I NDX1 /SYMBOL IS 1ST JMS I (HAFWD ISZ TMP2 JMP .-3 TAD I NDX1 /SAVE DCA GTYP /TYPE TAD I NDX1 /FLD OF SYMBOL JMS PR15 JMS CVLOVL /CONVERT ADDR, LEVEL, OVERLAY TAD GTYP /NOW DO TYPE AND (17 /ITS B8-B11 TAD (TYTBL-1 /PTR TO TBL OF DCA TMP0 /CHAR PAIRS FOR CDF 0 TAD I TMP0 /TYPE EG EX FOR CDF 10 JMS I (HAFWD /EXTERN TAD GTYP /IF ERROR WAS SPA CLA /FOUND DURING PASS2 B0 OF TYPE=1 EG ILLEGAL SUBR CALL. * ON MAP INDICATES TAD (12 /PASS2 ERROR TAD [240 JMS I PPACK JMS PCRLF JMP I OUTSYM CVRTMP, 0 CVLOVL, 0 CLA CMA DCA TMP5 /DO LEVEL NUM TAD GTYP /ITS B1-B3 OF RAL /OF TYPE WORD JMS CVRT AC7776 /DO OVER NUM DCA TMP5 /ITS B4-B7 OF TAD GTYP /TYPE WORD RTL /POSITION INTO AND (1700 /HI 2 DIGITS JMS CVRT JMP I CVLOVL PCRLF, 0 TAD (215 /EOL JMS I PPACK TAD (212 JMS I PPACK JMP I PCRLF PR15, 0 AND [7 TAD (4060 JMS I (HAFWD TAD [-4 /NOW DO ADDR OF DCA TMP5 /SYMBOL TAD I NDX1 JMS CVRT JMP I PR15 PAGE /PASS 2 OF LOADER - TRANSFORMS BINARIES INTO LOADER IMAGE FILE PASS2, DCA LNONUM /SET FOR MAIN JMS I (BLDTV /BUILD TRAP VECTOR TAD LBCNT /PROCESS LIBR CIA /MODULES 1ST SNA /ANY TO DO? JMP BY12 /NO DCA LBCNT /=-NUM TO DO TAD LBPTR /PTR TO 1ST DCA RFPTR1 /LIBR MOD JMS SETREF /INIT RELOC ARGS AND PROCESS TXT TAD [3 /ADV TO NXT TAD RFPTR1 /LIBR MOD. DCA RFPTR1 ISZ LBCNT /DONE LIBR? JMP .-5 /NO BY12, JMS I (SETCNT /SET ARGS TO PROCESS USER MODS. JMS SETREF /DO 1 MOD JMS I (ADVOVR /ADVANCE ARGS JMP .-2 /RTN HERE IF MORE TO DO JMS I (WRALL /WRITE OUT ALL THE RESIDENT BIN BLOCKS /END OF PASS 2 - RETURN TO OS8 OR CHAIN TO RSYS TAD (7616 DCA NDX0 TAD I (LIMGU /SAVE UNIT AND BLOCK OF LOADER IMAGE DCA I NDX0 /FILE IN CD AREA IN CASE WE CHAIN TAD I (LIMGU+2 DCA I NDX0 /TO THE RUN-TIME-SYSTEM DCA I NDX0 /A PRECAUTION CDF 0 CIF 10 JMS I USR 10 /LOCK USR IN TAD (200 DCA USR TAD I (LDRNAM CIF 10 JMS I USR 4 LDRNAM+1 /CLOSE LOADER IMAGE FILE LDCLEN, 0 JMS I [OS8ER /OOPS! JMS I (SYMMAP /PRINT SYMBOL TABLE IF REQUESTED TAD I (OS8SWS CDF 0 AND (40 /TEST /G SWITCH SNA CLA JMP I [7605 /NOT ON - RETURN TO OS8 CDF 10 TAD I (OS8SWS+1 CDF 0 AND (100 /TEST /R SWITCH FOR FRUN SNA CLA JMP LOOKRT /NO, IT'S FRTS TAD (FRUNAM DCA RTBLOK LOOKRT, TAD I (SBLOCK /ON CCL-DEVICE CIF 10 JMS I USR 2 RTBLOK, RTSNAM /LOOKUP FRTS OR FRUN 0 JMP NORTS TAD RTBLOK DCA CHBLOK /COPY LOOKUP BLOCK TO CHAIN TAD I (MREAD-1 /ON CCL-DEVICE CIF 10 JMS I USR 6 CHBLOK, 0 /------------------------ NORTS, DCA I (LDRNAM+5 /KILL SECOND STORAGE MAP JMS I [RTNOS8 RTSMSG SETREF, 0 JMS I (RDRLES /GET MODULE ESD TABLE AC7776 DCA EPTR LOP12, JMS I .+4 /GET NXTESD JMP BY11 /ALL DONE TAD EPTR /LOOK UP JMS I [LOOK /SYMBOL NXTESD CLA CMA /IGNORE ESD IF TAD ETYP /ITS AN ENTRY SNA CLA /POINT JMP LOP12 /IGNORE TAD GPTR /PUT ADDR OF DCA I REFPTR /GST SYM IN JMP LOP12 /ESD REF. PAGE BY11, CDF 0 /COMPUTE 1ST TAD EPTR /TEXT BLK AND [7400 CLL RTL RTL RAL IAC DCA I (TXTBLK CLA CMA /SET CNT TO -1 DCA BLKCNT /TO KICK OFF 1ST TXT READ TAD RFPTR1 /PTR TO DCA I (TXTBLK-3 /RALF MOD CDF 10 JMS I (TXTSCN /RELOCATE JMP I SETREF /TEXT PAGE BLDTV, 0 /BUILD UP TAD TRPCNT /TRAP VECTOR SNA CLA /ANY TO DO? JMP I BLDTV /NO TAD .+2 /GET BASE JMS I [LOOK /ADDR OF TRPSYM /TRAP VECT ISZ GPTR TAD I GPTR DCA TMP0 ISZ GPTR TAD I GPTR DCA TMP1 TAD TMP0 /FOR SUBR DCA TRAPV /TRPVEC TAD TMP1 DCA TRAPV+1 JMS NEWORG /PROCESS NEW ORIGIN DCA TRPCNT /WILL BE USED TO MARK GST SYMS TAD .+2 /THAT HAVE A VECTOR ENTRY JMS I [LOOK /GET SWAPPER SWPSYM /ADDR ISZ GPTR ISZ GPTR TAD I GPTR DCA RFPTR1 TAD SYMTM3 /SCAN GST LOP11, DCA GPTR /FOR ALL JMS I [GETTYP /TRAP SYMS JMP I BLDTV /ALL DONE TAD I GPTR /IF TYPE WD SMA CLA /B0=1, THEN SYMBOL NEEDS A VECTOR ENTRY JMP LOP11+1 /TRY NEXT 1ST WD OF ENTRY IS TAD (3000 /TRAP3 JMS I [PUTBIN TAD RFPTR1 /NXT IS JMS I [PUTBIN /SWAP ADDR CLL CML CLA RAR /CLR B0 TAD I GPTR /OF TYPE WD DCA I GPTR TAD I GPTR ISZ GPTR RTL RTL DCA TMP0 /HAVE TO MUSH SOME BITS AROUND: TAD TMP0 /OVERLAY NUMBER MOVES FROM B4-7 TO B0-3 AND [7400 DCA TMP1 /LEVEL NUMBER MOVES FROM B1-3 TO B6-8 TAD TMP0 RTL RTL AND (70 TAD TMP1 TAD I GPTR /ADD FLD BITS TO MESS JMS I [PUTBIN TAD TRPCNT /ADV VECT TAD (10 /ENTRY NUM DCA TRPCNT /COUNTER TAD I GPTR /TAG HI 9 TAD TRPCNT /OF GST SYM DCA I GPTR /WD5 WITH TV ENTRY NUMBER ISZ GPTR TAD I GPTR /ENTER JMS I [PUTBIN /ADDR AC7776 TAD GPTR JMP LOP11 /FOR THIS SYM NEWORG, 0 TAD BSECTP JMS I [SETEPT /SET PTR TO CURRENT SECTION TAD I EPT2 CIA CLL TAD TMP1 DCA TMP3 TAD TMP3 AND (6000 DCA TMP2 /DO A DOUBLE PRECISION SUBTRACT CML RAL TAD I EPTR CIA CLL TAD TMP0 SPA JMP BADORG /OUT OF RANGE CLL RAR TAD TMP2 /COMBINE AND SHIFT RIGHT 8 RAL RTL RTL /(I.E. LEFT 5) DCA TMP2 TAD TMP2 ISZ EPT2 TAD I EPT2 /ADD TO RELATIVE BLOCK OF SECTION DCA NEWBLK ISZ EPT2 TAD TMP2 CIA TAD I EPT2 SPA JMP BADORG /ORIGIN OUT OF RANGE DCA NEWLEN JMS I (NEWBB /GET BUFFER USING NEWBLK AND NEWLEN TAD TMP3 AND (1777 TAD BLKBEG DCA BLKSIZ /FORM POINTER INTO PROPER BUFFER JMP I NEWORG BADORG, JMS I [RTNOS8 ORGMSG /ORIGIN OUT OF CURRENT FILE LIMITS JMP I NEWORG PAGE PROVLY, 0 /ROUTINE TO PRINT OVERLAY INFO IN SYMBOL MAP JMS I [PCRLF TAD (OTLINE JMS I (OLINE TAD (OVLTBL-1 DCA NDX1 PROVLP, TAD I NDX1 /GET ENTRY SPA /TEBLE ENDS WITH -1 JMP I PROVLY DCA GTYP TAD [240 JMS I PPACK JMS I (CVLOVL /PRINT LEVEL AND OVERLAY TAD GTYP JMS I (PR15 /PRINT 15-BIT LENGTH JMS I [PCRLF JMP PROVLP RDRLES, 0 /READ A TAD RFPTR1 /PTR TO RALF DCA RLARG-1 /MOD DCA RLARG+2 /STRT AT BLK 0 CDF /AND READ JMS I [IOHAN /3 BLKS INTO 0 /10000-11400 RLARG, 200^3!10 0 0 CDF 10 JMP I RDRLES /STARTING WITH THE LATEST, /WRITE OUT ALL CORE RESIDENT /BINARY BUFFERS WRALL, 0 TAD BP IAC /PTR TO DCA TMP0 /CURNT BLK TAD I TMP0 SNA CLA /ALL DONE ? JMP I WRALL /YES AC4000 JMS I (LDRIO /WRITE IT TAD I BP SNA JMP I WRALL DCA BP JMP WRALL+1 NOTREL, JMS I [RTNOS8 RELMSG RELMSG, TEXT /BAD INPUT FILE/ RTSMSG, TEXT /NO FRTS OR FRUN/ RTSNAM, FILENAME FRTS.SV FRUNAM, FILENAME FRUN.SV MERGE, 0 JMS I (GETTXT /COMBINE TXT DCA FTMP0 /PAIR WITH JMS I (GETTXT /PAIR WHOSE DCA FTMP0+1 /ADDR IS IN BPTR CLL TAD I BPT2 TAD FTMP0+1 DCA TMP1 RAL TAD I BPTR TAD FTMP0 AND [7 DCA TMP0 TAD FTMP0 /GET THE OPCODE OR WHATEVER AND [7770 /IS IN THE HIGH 9 BITS TAD TMP0 /AND COMBINE THEM WITH THE RELOCATED ADDRESS JMS I [PUTBIN /AND OUTPUT THE MESS TAD TMP1 JMS I [PUTBIN /DON'T FORGET WORD 2 JMP I MERGE GETCTL, 0 /GET TEXT JMS I (GETTXT /CTRL WORD DCA TMP0 /B4-B11 TAD TMP0 /IS TYPE AND [377 /INDICATOR DCA REFPTR /SOMETIMES TAD REFPTR /ITS AN ESD. TAD (ESDPG /WHEN IT IS, DCA GPTR /GPTR PNTS TAD I GPTR /TO THE DCA GPTR /CORRESPONDING GST SYM (WORD 4) JMS I [SETBGX /AND BPTR POINTS TO THE VALUE TAD TMP0 /TEXT TYPE RTL /IS IN RTL /B0-B3 RAL /PUT IN AND [17 /AC8-AC11 TAD GETCTL DCA GETCTL /USE IT TO BUMP RETURN ADDRESS JMP I GETCTL PAGE /COME HERE ON ORIGIN OR WHEN CROSSING /AN AREA BOUNDARY TO SELECT A BINARY /CORE BUFFER FOR A NEW LOADER IMAGE /AREA. THE BINARY BUFFER TABLE /ASSOCIATES CORE BUFFERS TO LOADER /IMAGE AREAS. /EACH ENTRY HAS FOUR WORDS - THEY CONTAIN: /WORD 1 POINTER TO BUFFER OF NEXT EARLIEST REFERENCE /WORD 2 RELATIVE BLOCK NUMBER (0 IF UNUSED) /WORD 3 NUMBER OF BLOCKS LEFT UNTIL END OF SECTION /WORD 4 BUFFER ADDRESS AND FIELD /EACH ENTRY MAPS FROM 1 TO 4 BLOCKS (400 TO 2000 OCTAL WORDS) FROM THE /ADDRESSES GENERATED BY THE LOADER ONTO THE LOADER IMAGE FILE. /THE RELATIVE BLOCK NUMBERS ARE ALWAYS OF THE FORM S+4N, WHERE /S IS THE RELATIVE BLOCK NUMBER OF THE NEAREST BINARY SECTION / (A BINARY SECTION IS AN OVERLAY OR "MAIN"). /THE BUFFERS ARE ORGANIZED AS A CHAIN IN ORDER OF REFERENCE, /WITH WORD 1 BEING THE LINK TO THE NEXT EARLIEST BUFFER. IN CASE /A BUFFER NEEDS TO BE WRITTEN THE CHAIN IS TRAVERSED AND THE LAST BUFFER /WRITTEN OUT, SINCE IT WAS THE LEAST RECENTLY ACCESSED. NEWBB, 0 /ENTER WITH NEW TAD BP DCA NDX5 /SAVE CURRENT "MOST RECENT" BUFFER TAD I NDX5 CIA TAD NEWBLK /CHECK WHETHER THE BUFFER WE WANT SNA CLA /IS THE CURRENT BUFFER JMP QUIKIE /YES - SAVE GRIEF NEWBB4, TAD BP /MAKE THE CURNT DCA BPPREV /BUFFER THE PREVIOUS BUFF TAD I BP /MAK THE BUF OF DCA BP /NEXT EARLIEST REFERENCE THE NEW CURNT BUFF TAD BP /GET THE PTR TO IAC /LDR IMAGE BLK DCA CURBLK /IN THIS BUFF TAD I CURBLK /HAVE WE SCANNED CIA /IS NEWBLK TAD NEWBLK /IN CORE SNA CLA /? JMP GOTBLK /YES TAD I BP /ARE WE AT THE SZA CLA /BUFFER OF EARLIEST REF? JMP NEWBB4 /NO DO NEXT STL /INITIALIZE LINK AS FLAG TAD I CURBLK /IS THERE A SNA CLA /BLK TO WRITE? JMP VIRGIN /NO - NONE TO READ, EITHER AC4000 JMS I (LDRIO /YES WRITE IT CLL /SET FLAG THAT BUFFER WAS WRITTEN VIRGIN, TAD NEWBLK DCA I CURBLK ISZ CURBLK TAD NEWLEN /STORE NEW BLOCK # AND LENGTH DCA I CURBLK /IN BUFFER CONTROL WORD RAR /GET "VIRGIN FLAG" DCA NEWBUF TAD MAXBLK CMA CLL TAD NEWBLK /CHECK IF THE BLOCK WE'RE MAPPING SNL CLA /IS LARGER THAN ANY OTHER SO FAR - JMP .+3 /IF SO WE DON'T HAVE TO READ IT TAD NEWBLK DCA MAXBLK /UPDATE MAXBLK TAD NEWBUF /LINK = MAX FLAG, SIGN = VIRGIN FLAG SNL SMA CLA /IF NEITHER IS ON, JMS I (LDRIO /READ THE BLOCKS INTO THE BUFFER GOTBLK, TAD I BP DCA I BPPREV /BREAK NEW BUFFER OUT OF THE CHAIN STA TAD NDX5 /NDX5 CONTAINS PTR TO OLD "MOST RECENT" + 1 DCA I BP /MAKE NEW BUFFER THE BUFFER OF LATEST REFERENCE QUIKIE, JMS NEWBUF /SET UP FOR PUTBIN JMP I NEWBB /AND RETURN /COME HERE TO CUMPUTE A 15 BIT /BUFFER ADDRESS FROM AN ENTRY /IN THE BINARY BUFFER TABLE. NEWBUF, 0 TAD [3 TAD BP DCA OUTFLD TAD I OUTFLD /LOAD ADRESS AND FIELD AND (7600 DCA BLKBEG TAD I OUTFLD AND (70 TAD (CDF DCA OUTFLD /DECOMPOSE INTO ADDRESS AND CDF JMP I NEWBUF BPPREV, 0 MAXBLK, 0 /COME HERE TO STORE 1 WORD /IN SOME BINARY OUTPUT BUFFER PUTBIN, 0 DCA TMP2 /SAVE DATA TAD ORGFLG /N.E. 0 MEANS SZA CLA /INHIBIT JMP I PUTBIN /BINARY OUTPUT BECAUSE OF NEW ORIGIN TAD OUTINH /N.E. 0 MEANS SNA CLA /INHIBIT BIN OUT BECAUSE OF BAD ORIGIN JMP OUTFLD /ITS OK TAD I OUTINH /SET B0 OF RAL /OFFENDING GST CLL CML RAR /SYMBOL DCA I OUTINH /SEE SUBR REORG JMP I PUTBIN /FOR DEFINITION OF C(OUTINH) OUTFLD, 0 /CDF X TAD TMP2 /STORE IT DCA I BLKSIZ /AWAY CDF 10 /RESTORE FLD ISZ BLKSIZ /BUMP PTR TAD BLKBEG CIA TAD BLKSIZ /HAVE WE AND (1777 /CROSSED A SZA CLA /BLK BOUND? JMP I PUTBIN /NO TAD NEWBLK TAD [4 DCA NEWBLK TAD NEWLEN TAD [-4 DCA NEWLEN /BUMP BLOCK NUMBER AND REMAINING BLOCKS JMS NEWBB /SELECT A NEW BUFFER TAD BLKBEG DCA BLKSIZ /RE-INITIALIZE WORD POINTER JMP I PUTBIN CURBLK, 0 PAGE /COME HERE TO SCAN AND RELOCATE /THE TEXT OF AN ENTIRE MODULE TXTSCN, 0 /SET CTRL WD JMS I (GETCTL /ARGS. RTN TO .+1,2,3, OR 4 JMP RELC2 /SPECIAL TYPE JMP RELC6 /DIRECT COPY JMP REORG /NEW ORIGIN TAD I GPTR /RELOCATE FPP AND [17 /PAIR DCA TMP0 /GST SYM TYPE AC7776 /IS RELOCATION TAD TMP0 /WITH RESPECT SZA CLA /TO GST EXTERN? JMP BY2 /NO SETTRP, JMS GETTXT /BAD TEXT. CLA JMS GETTXT /IGNORE RELOCATION AND MAKE AN ERROR TRAP CLA TAD (3000 /=TRAP3 JMS I [PUTBIN TAD (JUERR /RTS ERROR JMS I [PUTBIN /TRAP SUBR BY2M5, TAD I GPTR /SET ILLEGAL RAL /REFERENCE CLL CML RAR /BIT IN DCA I GPTR /GST TYPE WD JMP TXTSCN+1 /DO NEXT BY2, TAD (-5 /RELOCATE TO TAD TMP0 /A MULTIPLE SNA CLA /ENTRY? JMP SETTRP /YES TAD I GPTR /CHECK FOR LEGALITY OF REFERENCE AND (0360 /WITH RESPECT TO LEVEL AND OVERLAY NUMBER DCA TMP1 / = GST OVER NUM TAD LNONUM /=CURNT MOD AND [3400 /LEVEL NUM DCA TMP2 TAD I GPTR AND [3400 SNA /RELOCATE TO MAIN? JMP RELC /YES, ITS OK CIA /IS RELOCATION TAD TMP2 /ACROSS LEVELS SZA /? JMP TSTTRP /YES TAD LNONUM /=CURRENT MOD AND (0360 /OVER NUM CIA TAD TMP1 /WITHIN LEVL CALL IS LEGAL ONLY SNA CLA /IF WITHIN OVR ALSO. JMP RELC /ITS OK /** TSTTRP REPLACED BY "SKP CLA" IF /U SPECIFIED TSTTRP, SMA CLA /NOT OK - IS X LEVL LO TO HI? JMP SETTRP /NO TAD I BPTR /TRAP VECT TAD [7770 /SUBTRACT 1 FROM ENTRY NUM AND [7770 /IN HIGH 9 BITS OF GST WD 5 CLL RAR /DIV BY 2 TO GET ENTRY NUM * 4 TAD TRAPV+1 /LINK IS 0 DCA I (SYMX+1 /STORE VECTOR ENTRY ADDRESS RAL TAD TRAPV /IN SYMX AS A DOUBLEWORD DCA I (SYMX TAD (SYMX JMS I [SETBPT /COMBINE IT WITH TXT PAIR JMS I (MERGE /I.E. RELOCATE TO TRAP VECT TAD FTMP0 AND [7 SNA TAD FTMP0+1 SNA CLA /WERE LOW ORDER 15 BITS OF TXT=0? JMP TXTSCN+1 /YES, ITS OK JMP BY2M5 /SET ILL REF BIT. NOTE TRAP IS NOT GENERATED RELC, JMS I (MERGE /MAKE FPP PAIR AND STORE IN BIN BUFFER JMP TXTSCN+1 /DO NEXT RELC2, TAD REFPTR /CHK IND. SNA CLA /FOR SPECIAL TYPE JMP I TXTSCN /0=END OF TEXT JMP TXTSCN+1 /1=IGNORE 1 WORD OF TEXT RELC6, TAD REFPTR /IND HOLDS CIA /NUM OF WDS DCA REFPTR /TO COPY JMS GETTXT JMS I [PUTBIN ISZ REFPTR JMP .-3 JMP TXTSCN+1 REORG, ISZ ORGFLG /SET INHIBIT BIN OUT FLG JMS I (MERGE /GET NEW ORIGIN TAD I GPTR /SEE IF AND (3760 /ORIGIN IS CIA /TO A DIFFERENT TAD LNONUM /BINARY SECTION SZA CLA /? TAD GPTR /YES - SET INHIBIT/ERROR FLAG SNA JMS I (NEWORG /NO - SET UP NEW ORIGIN DCA OUTINH DCA ORGFLG JMP TXTSCN+1 GETTXT, 0 /GET ONE WORD OF TEXT FROM THE BUFFER ISZ BLKCNT JMP RDTCDF CDF /TO READ IN JMS I [IOHAN /RALF TEXT 0 /PTR TO UNIT 200^4!10 /OR 200^17!20 0 TXTBLK, 2 TAD .-2 /SET TXT DCA RBLK /BUF PTR TAD TXTWDS /-NUM OF DCA BLKCNT /WDS-1 IN RDTCDF, CDF 10 /OR CDF 20 TAD I RBLK CDF 10 ISZ RBLK JMP I GETTXT /RETURN TXTWDS, -2000 /OR -7400 PAGE /ENTER A SYMBOL INTO GST. PTR TO ESD /SYMBOL IS IN AC JMP I PUTSYM /FOR XPAGE RTN PUTSYM, 0 JMS I [LOOK /LOOKUP SYMBOL JMP I (NOMAT /NEW SYMBOL DISPOSITION /TYPE OF MATCH 2 EXTERNS, 2 COMMONS, ETC. /ETYP HOLDS SYM TYPE FOR ESD GTYP HOLDS GST TYPE TAD (5 DCA TMP0 /FOR ME,MS TAD ETYP TAD (-7 SPA TAD (2 TAD [4 RAR CLL CMA DCA TMP2 CML CMA /GET -1 TAD GTYP /RESTR LNK, GET GST TYP-1 RAL TAD (MYSTIC /GET ADDR OF 4 CODES DCA TMP1 CDF 0 TAD I TMP1 /GET 4 CODES CDF 10 CTST, ISZ TMP2 /WHICH CODE ? JMP SHFT3 /NOT THIS 1 AND [7 TAD T2J /PICK UP JMP I DCA .+1 0 T2J, JMP I .+1 ISCOM3 /FORT COMM N FLD1 SECTION PUTSYM-1 /ESD IS EXT JUST EXIT REP /GST IS EXT GO REPLACE MULENT /MULTIPLE ENTS ISCOM /2 F COMMS OR 2 COMMZS OR 2 FLD1S BADDY /MULTIPLE SECTS BADDY /UNDEF TYPES BADDY BADDY SHFT3, RAR RTR JMP CTST BADDY, TAD MCNT TAD MBGCNT DCA MTMCNT /SAVE PARAMS FOR ERROR MESSAGE LATER CLA IAC TAD LNONUM /MULTIPLE SECTION DCA FATAL ISZ TMP0 /IS FATAL MULENT, TAD I GPTR /SET TYPE TO AND (7760 /5 FOR MUL ENT TAD TMP0 /OR 6 FOR DCA I GPTR /MUL. SECTION JMP I PUTSYM ISCOM3, TAD (11 /F COMM N FLD1 (RITE9=11) DCA I GPTR /SET TYP TO F1 ISZ F1FLG ISCOM, JMS I [SETBGX TAD BPTR /UPDATE DCA I REFPTR /ESD REFERENCE PTR JMS I (MAXCOM /PUT LARGER OF 2 COMMONS INTO JMP I PUTSYM /GST WORDS 5 AND 6 MTMCNT, 0 /THE FOLOWING TABLE IS USED TO /DISPOSITION SYMBOL MATCHES BETWEEN /A RALF ESD AND A GST SYMBOL /EACH DIGIT IN THE TABLE IS AN INDEX /INTO A TABLE THAT IS USED TO CALL /ROUTINES TO HANDLE THE VARIOUS TYPES /OF MATCHES: / 0=FORT COMMON AND FLD1 SECTION / 1=ANY MATCH WITH ESD EXTERN / 2=ANY MATCH WITH GST EXTERN / 3=MULTIPLE ENTRY POINTS / 4=2 FORT COMMONS OR 2 FIELD1 / SECTIONS OR 2 COMMZ SECTS / 5=MULTIPLE SECTIONS / 6-7=UNDEFINED AND HALT / /THE FIRST 2 WORDS COVER ALL POSSIBLE /MATCHES WITH GST TYPE 1, THE SECOND /TWO WORDS ARE FOR GST TYPE 2 ETC /THE 4 DIGITS IN THE FIRST WORD OF /ANY PAIR CORRESPOND TO ESD TYPES /11,7,3,1 RESPECTIVELY /ESD CORRESPONDENCE FOR THE 2ND WORD /IS 12,10,4,2 /ESD TYPE 12 IS UNDEFINED MYSTIC, 5553 /G1 E(11,7,3,1) 7551 /E(12,10,4,2) 2222 /G2 E(11,7,3,1) 7221 /E(12,10,4,2) 0545 /G3 7551 5555 /G4 7551 5553 /G5 7551 5555 /G6 7551 5555 /G7 7551 5555 /G10 7451 4505 /G11 7551 ESDSCN, 0 CLL STA RTL /-3 TAD I (0 SZA CLA JMP I (NOTREL /NOT RALF MODULES - NASTY! TAD I (2 /CHK FOR DP SPA CLA /HARDWARE REQUIRED ISZ DPFLG /ISZ=YES AC7776 /ENTER ESD OF MODULE DCA EPTR /INTO GST. ESD STARTS AT 10000 JMS I (NXTESD /GET NXT 1 JMP I ESDSCN /NO MORE TAD EPTR JMS PUTSYM /ENTER IT JMP .-4 /DO ANOTHER MSMSG, TEXT /MULT SECT/ CORMSG, TEXT /OVER CORE/ LIMSG, TEXT /OVER IMAG/ MNMSG, TEXT /NO MAIN/ PAGE /CONTINUATION OF SUB PUTSYM REP, DCA GTYP AC7775 /REPLACE GST TAD ETYP /EXTERN SNA /IS IT A REF TO COMMON? JMP MNSECN /YES TAD M4 /IS IT A REF SMA CLA /8 MODE SECN ? JMP NOMAT TAD I GPTR /NO CHK FOR AND [3400 /CROSS LEVEL CIA /REFERENCE DCA TMP0 /COMPARE WITH TAD LNONUM /CURNT LEVEL AND [3400 SNA /DOING MAIN ? JMP NOMAT /YES DONT CHK FOR TRAP ENTRY TAD TMP0 SNA CLA /X LEVEL? JMP NOMAT ISZ TRPCNT /YES BUMP TRAP VECTOR COUNTER AC4000 /SET B0=1, GST SYM WILL GO IN TRAP VECTOR NOMAT, DCA GTYP TAD ETYP /ENTER GST TAD (.+3-1 /WORDS 4,5,6. DCA TMP0 /DISPATCH ESD JMP I TMP0 /TYPE 1,2,3,4 JMP ENTMN2 /ENTRY POINT JMP ENTMN /EXTERN JMP MNSECN /COMMON SECN JMP PRGSCN /PROGRAM SECN M4, -4 M7, -7 JMP MNS8 /GEN 8 MODE SCT JMP MNCZ /COMM 8 MODE JMP MNF1 /FLD1 8 MODE PRGSCN, TAD LNONUM AND [3400 /IS IT A MAIN SNA CLA /? JMP MNSECN /YES TAD I [OVRSIZ DCA TMP0 TAD I [OVRSIZ+1 DCA TMP1 /SAVE OLD OVERLAY SIZE CLL TAD I EPT2 TAD TMP1 DCA I [OVRSIZ+1 RAL TAD I EPTR TAD TMP0 DCA I [OVRSIZ /SET OVLY SIZE = OVLY SIZE + SECTION SIZE TAD TMP0 DCA I EPTR TAD TMP1 DCA I EPT2 /SET SECTION SIZE = OLD OVERLAY SIZE TAD GPTR /PUT ADDR OF IAC /GST WD5 OF DCA I REFPTR /SECTION SYM INTO ESD REFERENCE PAGE ENTM2, TAD [LVPTR /SET REFERENCE DCA REFPTR /TO PARENT SYM =WD5 OF #YLVLN ENTMN, TAD LNONUM /=CURNT OVRLAY AND CURNT LEVEL NUM JMP MNSEC5 ENTMN2, TAD LNONUM /SEE IF ENTRY AND [3400 /POINT IS IN SNA CLA /MAIN? JMP ENTMN /YES TAD I REFPTR /IS PARENT JMS I [SETBPT /REFERENCE TO CLA CMA /COMMON? TAD REFPTR /LOOK FOR DCA TMP0 /TYPE CODE 3 AC7775 TAD I TMP0 SNA JMP ENTMN /YES, HANDLE LIKE A MAIN ENTRY POINT TAD M4 /IS IT A REF SNA CLA /TO AN 8 SECT? JMP MNSEC5 /YES HANDLE LIKE MAIN CLL TAD I BPT2 TAD I EPT2 DCA I EPT2 /SET OVR ENT = OVR ENT + OVR RAL TAD I BPTR AND [7 /WATCH HIGH-ORDER BITS TAD I EPTR DCA I EPTR JMP ENTM2 /SIZE OF SECTION MNF1, ISZ F1FLG /SET FOR NE TO JMP MNSECN /0 SO DO8S WILL MNCZ, ISZ CZFLG /KNOW THESE JMP MNSECN /TYPES OF SECTS MNS8, ISZ S8FLG /EXIST AND WILL FIT THEM INTO CORE MNSECN, TAD GPTR /PUT ADDR OF IAC /GST WD5 OF DCA I REFPTR /SECTION SYM INTO ESD REFERENCE PAGE TAD (SYMX+1 /THIS VALUE DCA REFPTR /YIELDS 0 IN HI 9 WD 5 OF GST SYM MNSEC5, TAD ETYP /SYM TYPE TO AC8-11. AC MAY HAVE TAD GTYP /LEVEL AND OVR BITS (AC1-7) ALREADY SET DCA I GPTR /GST WD4 HOLDS SYMBOL TYPE JMS I [SETBGX /SET BPTR TO GST WORD DCA TMP0 /PREPARE FOR DIVISION BY 7 TAD I REFPTR TAD (2-SYMTBL /GET OFFSET FROM SYMTBL TAD M7 ISZ TMP0 SMA JMP .-3 /DIVIDE BY REPEATED SUBTRACTION STA /AC IS NOT NECESSARILY ZERO! TAD TMP0 CLL RTL /ROTATE SYMBOL NUMBER INTO AC BITS 0-8 RAL TAD I EPTR /AND INSERT IT INTO THE ADDRESS DCA I BPTR /DOUBLEWORD TO FORM THE GST TAD I EPT2 /ADDRESS DOUBLEWORD DCA I BPT2 JMP I .+1 PUTSYM-1 PAGE STPAS1, DCA I NDX0 /ZERO OUT GST ISZ STCNT /NDX0 SET UP BY PASS0 JMP STPAS1 JMS I (SETCNT /SET MOD CNTS JMS I (RDRLES /READ A RALF ESD JMS I (ESDSCN /PROCESS IT JMS I (ADVOVR /UPDATE COUNTS JMP .-3 /DO NEXT TAD LIBRSW SNA CLA /LIBRARY SEARCH POSSIBLE? JMP I (DOCORE /NO - SKIP IT TAD SYMTM3 /TOP OF DCA GPTR /GST TAD RFPTR1 /1ST FREE DCA LBPTR /ENTRY IN MODULE TBL THIS IS WHERE LIBR MODULES WILL GO JMS I (GETEXT /GET AN JMP .+3 /EXTERN LOP4, JMS I (GETEXT TAD RESFLG /=1 IF DCA IOFLG /LIBR CAT IS ENTIRELY CORE RES DCA LBREC /SET I/O FOR DCA LSTBLK /BLK 0 OF LIBRARY DCA RBLK /SET REL BLK DCA RLEN /AND LENGTH JMP BY3 /TO 0 NXTENT, TAD NDX1 /ADV TO AND [-4 /NXT ENTRY TAD (2 /BUT GET DCA NDX1 /LENGTH OF JMS I (GETLEN /PREV ONE 1ST ISZ NUMENT /MORE IN CORE? JMP BY3+1 /YES TAD IOFLG /END OF SZA CLA /CATALOGUE? JMP LOP4 /YES, NO MATCH ON THIS EXTERN BY3, JMS RDLBR /GET NEXT TAD [-4 /CAT. BLKS TAD GPTR /LOOK FOR DCA NDX0 /LIBR MATCH AC7775 DCA TMP0 LBFLD, CDF 0 /CDF 20 IF GREATER THAN 8K CORE TAD I NDX1 CDF 10 CMA /IS IT THE END SNA /OF CAT ? JMP LOP4 /YES IAC TAD I NDX0 SZA CLA /MATCH 1? JMP NXTENT /NO TRY NXT LIBR ENTRY ISZ TMP0 /ALL MATCH? JMP LBFLD /NO JMS I (GETLEN /UPDATE RBLK, CLA CMA /RLEN TAD RFPTR1 /ENTER MOD DCA NDX0 /INTO TBL TAD I (MODTBL /LIBR UNIT DCA I NDX0 TAD RLEN /LENGTH OF DCA I NDX0 /MODULE TAD I (MODTBL+2 /STARTING BLOCK OF LIBRARY, + TAD RBLK / RELATIVE BLOCK OF MODULE = DCA I NDX0 / ABSOLUTE BLK OF MOD ISZ LBCNT /=NUM OF LIBR MOD IN MAIN TAD GPTR /SAVE GST DCA LSTBLK /PTR JMS I (RDRLES /READ IN ESD DCA LNONUM /SET FOR MAIN JMS I (ESDSCN /PROCESS ESD TAD [3 /ADV MODULE TAD RFPTR1 /TBL PTR DCA RFPTR1 TAD LSTBLK DCA GPTR ISZ MLEFT /MOD TBL FULL? JMP LOP4 /NO DO SOME MORE JMP I (DOCORE LIBRSW, 0 /NON-ZERO IF LIBRARY SEARCH POSSIBLE STCNT, SYMTBL-OVLTBL RDLBR, 0 TAD IOFLG /IS THIS SZA CLA /THE END JMP ENDLB /OF CAT.? CDF /NO JMS I [IOHAN /READ SOME MODTBL /MORE LBARG, 200^5 /OR 200^17!20 LB0BUF /OR 0 LBREC, 0 /REL CAT BLK TAD LBREC /GET -NUM OF CIA /BLKS READ, TAD LSTBLK /AND COMPUTE DCA TMP0 /THE NUM OF TAD (-100 /ENTRIES IN ISZ TMP0 /CORE. THERE JMP .-2 /ARE 100 PER DCA OLDCNT /BLOCK TAD LBREC /UPDATE DCA LSTBLK /LSTBLK ENDLB, TAD OLDCNT DCA NUMENT CLA CMA /SET PTR TO TAD LBARG+1 /1ST ENTRY DCA NDX1 CDF 10 JMP I RDLBR LSTBLK, 0 MLEFT, 0 RESFLG, 1 NUMENT, 0 OLDCNT, 0 PAGE /END OF PASS 1 - FIT EVERYTHING INTO CORE DOCORE, TAD TRPCNT SNA CLA JMP LOP3-3 /NO OVRS TAD (TRPSYM /ENTER TRAP JMS I [LOOK /VECT. SYM TAD [4 /ITS A DCA I GPTR /MAIN SECN ISZ GPTR /GST WD6 ISZ GPTR /HOLDS LENGTH TAD TRPCNT /GET SIZE OF RTL CLL /TRAP VECTOR DCA I GPTR /= NUMBER OF ENTRIES * 4 JMS I (DO8S /GO DO ALL 8 MODE SECTIONS TAD SYMTM3 /ALLOCATE DCA GPTR /CORE FOR LOP3, JMS I [GETTYP /ALL MAIN NON 8 MODE JMP DUNMN /SECTIONS AC7775 /4=PROG TAD I GPTR /SECN, 3=COMMON RAR CLL SNA CLA JMS I (FIT /GO FIT SECN JMP LOP3 DUNMN, STA DCA I NDX7 /TERMINATE OVERLAY LENGTH LIST TAD A1 DCA I (OVLTBL /STORE ENTRY FOR LEVEL 0 TAD A1+1 DCA I (OVLTBL+1 TAD A1+1 CLL TAD [377 AND [7400 SZL ISZ A1 /(WATCH CARRY!) DCA A1+1 /DITTO FOR NON-FIELD 0 CLA IAC /WILL HOLD DCA BLKCNT /SIZE OF LOADER IMAGE TAD (1460 /RESET INT. DCA I (LEVSYM+2 /#YLVLN SYM TAD (QUSRLV-1 /WHERE OVRLAY DCA NDX3 /DSRN INFO GOES IN LHDR CLA IAC DCA I NDX3 /USER MAIN IS LEVEL 0 TAD (10 DCA I NDX3 /SET UP LOADING INFORMATION FOR USER MAIN STA /IN THE USRLV TABLE JUST LIKE TAD A1 /ANY OTHER OVERLAY LEVEL CLL RAR TAD A1+1 /LENGTH HAS TO BE COMPUTED FROM RAL /CORE LENGTH RTL RTL DCA TMP0 CLA IAC DCA I NDX3 /USER MAIN FIRST THING IN LDR IMAGE TAD TMP0 DCA I NDX3 TAD TMP0 LOP6, TAD BLKCNT /UPDATE LENGTH DCA BLKCNT /OF LDR IMAGE ISZ I (LEVSYM+2 /NEXT LEVEL TAD (LEVSYM /LOOKUP ISZ NLVL JMS I [LOOK /#YLVLN JMP DUNLVL /DONE ALL OVR LEVELS JMS I (FIT /FIT LEVEL ISZ GPTR /IN CORE TAD I NDX3 /NUMBER OF OVERLAYS ON THIS LEVEL - ALSO CIA /SERVES AS AN INDICATOR TO THE RUN-TIME DCA TMP0 /SYSTEM THAT THIS LEVEL IS INITIALLY TAD I GPTR /UNINHABITED. AND [7 /GET FIELD BITS CLL RTL RAL ISZ GPTR TAD I GPTR /AND ADDRESS BITS DCA I NDX3 /PUT-EM OUT TAD BLKCNT /STARTING BLOCK OF LEVEL DCA I NDX3 TAD BLKSIZ DCA I NDX3 /LENGTH OF A SINGLE OVERLAY IN THE LEVEL TAD BLKSIZ /(NUM OF OVRS)* ISZ TMP0 /NUM OF BLKS JMP .-2 /AC=LENGTH OF LEVEL JMP LOP6 /DO NEXT LEVEL NLVL, 0 DUNLVL, CLA /AC NOT ZERO! TAD SYMTM3 /NOW RESOLVE DCA GPTR /ALL OTHER SYMBOLS LP1, JMS I [GETTYP JMP I (ALLDN1 /ALL DONE JMS I [SETBGX /SET BPTR TO GST WD5 TAD I BPTR AND [7770 SNA JMP LP1 /NO RELATIVE SYMBOL - DON'T RELOCATE DCA EPTR TAD EPTR /FIGURE OUT THE SYMBOL TABLE ADDRESS CLL RTR /OF THE RELATIVE SYMBOL BY STL CMA RAR /TAKING 7 * THE RELATIVE SYMBOL NUMBER TAD EPTR /IN BITS 0-8 AND ADDING IN THE BASE TAD (SYMTBL-1 /ADDRESS OF THE SYMBOL TABLE JMS I [SETEPT TAD I EPT2 CLL TAD I BPT2 DCA I BPT2 RAL TAD I BPTR AND [7 /THROW AWAY THE OLD RELATIVE SYMBOL # TAD I EPTR DCA I BPTR /AND PERFORM THE RELOCATION JMP LP1 /DO AGAIN PAGE ALLDN1, TAD A1 DCA I (QHGHAD /SAVE HIGHEST PROGRAM ADDRESS TAD A1+1 /SO THAT RTS WILL KNOW HOW MUCH ROOM DCA I (QHGHAD+1 /IT HAS FOR BUFFERS & THINGS TAD FATAL /ANY MULTIPLE SNA /SECTIONS? JMP NOMSCT /NO DCA LNONUM CDF 0 TAD I (MTMCNT DCA MBGCNT /RESTORE ERROR PARAMETERS CDF 10 JMS I [RTNOS8 MSMSG NOMSCT, TAD (SASYM /GET STRT JMS I [LOOK /ADDR MAIN SKP /NO MAIN JMP .+3 JMS I [RTNOS8 MNMSG TAD SVMAIN /IF .NE. SET TO SZA /POINT TO GST TAD GPTR /FOR PND MAIN DCA SVMAIN /FOR /S THINGS IN SYMMAP RT. CDF 0 TAD I (JOUSYM DCA I (PRMAIN /ENABLING PRINTING OF #MAIN ON ERRORS CDF 10 ISZ GPTR TAD I GPTR /MAKE SWAPPER CONTROL WORD DCA I (QRTSWP /LEVEL 0, OVERLAY 0 IS MAIN ISZ GPTR TAD I GPTR /12 BIT ADDR DCA I (QRTSWP+1 TAD DPFLG /N.E. MEANS LDR IMAGE NEEDS DP HRDWRE DCA I (QDPFLG /RETAIN INFO IN LHDR FOR PASS3 CDF 0 /FETCH LDR TAD I (LDRNAM /IMAGE JMS I [IOHAN /HANDLER TAD BLKCNT CLL RTL /SINCE WE KNOW THE LENGTH OF THE SZL SPA /LDR IMAGE FILE, TELL IT TO THE USR CLA /(UNLESS ITS >255) RTL SZL CLA TAD I (LDRNAM /OPEN LDR CIF 10 /IMAGE JMS I USR 3 LDRBLK, LDRNAM+1 LDRLEN, 0 JMP I (ENTERR TAD BLKCNT /SEE IF LDR STL /IMAGE WILL TAD LDRLEN /FIT ON SZL SNA CLA /TENTATIVE FILE JMP .+3 /IT FITS JMS I [RTNOS8 /OUTPUT FILE LIMSG /TOO SMALL TAD BLKCNT /CLOSE LDR DCA I (LDCLEN /IMAGE FILE TAD (LIMGU-1 /PASS2 DCA NDX0 TAD I (LDRNAM CDF 10 AND [17 DCA I NDX0 /UNIT TAD BLKCNT DCA I NDX0 /LENGTH TAD LDRBLK DCA I NDX0 /STRT BLK CDF 0 JMS I [IOHAN LIMGU /WRITE OUT LOADER IMAGE HEADER BLOCK 4210 LHDR 0 /IN RELATIVE BLOCK 0 OF LOADER IMAGE FILE CDF 10 /SET UP TABLE THAT RELATES /BINARY SECTINS TO LDR /IMAGE RELATIVE BLOCK NUMS. /1 DBL WD AND 2 SINGLE-WD ARGUMENTS PER /SECTION (15 BIT ADDR, RELATIVE /BLOCK, AND LENGTH). THERE ARE /8 SECTIONS /(MAIN, LEVL1,....,LEVL7) /TABLE STARTS AT LHDR AND /IS USED BY SUBR NEWORG TAD (LHDR-1 DCA NDX1 TAD (QUSRLV /NOW DO THE DCA NDX0 /8 LEVELS TAD [-10 DCA TMP0 SETSLP, TAD I NDX0 DCA BSECTP TAD BSECTP CLL RTR RAR AND [7 DCA I NDX1 /FIRST COMES 15-BIT ADDRESS TAD BSECTP AND [7400 DCA I NDX1 TAD I NDX0 DCA I NDX1 /THEN RELATIVE BLOCK NUMBER TAD I NDX0 DCA I NDX1 /THEN LENGTH ISZ NDX0 /SKIP OVER NEXT OVERLAY COUNT ISZ TMP0 JMP SETSLP TAD (LHDR /PTR TO TOP DCA BSECTP /OF TABLE CLA CMA /SET FLG DCA P2FLG /FOR SUBR ADVOVR JMP I .+1 PASS2 PAGE DO8S, 0 /DO 8 SECTIONS TAD CZFLG /ANY 8 MODE SZA CLA /COMMONS ? JMS FIT8S /GO FIT IT TAD F1FLG /ANY 8 MODE SNA CLA /FIELD 1 ? JMP .+3 /NO STA JMS FIT8S TAD S8FLG /ANY GEN 8 MODE SNA CLA /SECTIONS ? JMP I DO8S /NO ALL DONE TAD [7770 /THIS WILL DCA OVRFLO /INHIBIT FLD1 OVER FLOW ERR CLA IAC JMS FIT8S JMP I DO8S /FIT 8 MODE SECTIONS FIT8S, 0 TAD [7770 DCA STYPE /-8M0DE SECT TYPE (7-11) TAD SYMTM3 /SEARCH GST FOR DCA GPTR /8 MODE SECTNS F8SECT, JMS I [GETTYP JMP I FIT8S /ALL DONE TAD STYPE TAD I GPTR SZA CLA /8 SECTION ? JMP F8SECT /NO JMS I [SETBGX TAD I BPT2 TAD (177 /ROUND SECTION LENGTH AND (7600 /TO A PAGE BOUNDARY DCA I BPT2 JMS I (FIT /NOW FIT IT TAD OVRFLO /SEE IF FLD1 TAD A1 /IS OVR FLOWED **** SPA SNA CLA /? JMP F8SECT /DO ANOTHER TOOBIG, JMS I [RTNOS8 CORMSG /PRINT ERROR & GO AWAY STYPE, 0 FIT, 0 /FIT SECTION JMS I [SETBGX /SET BPTR TO POINT TO GST WD5 TAD I BPT2 AND [7400 CLL RAL TAD I BPTR RTL RTL /GET LENGTH OF SEGMENT IN BLOCKS DCA BLKSIZ TAD I BPT2 CLL TAD A1+1 DCA TMP5 TAD A1+1 DCA I BPT2 TAD TMP5 DCA A1+1 /SET BPTR = A1 RAL /WHILE SETTING A1 = A1 + BPTR TAD I BPTR TAD A1 DCA TMP5 TAD TMP5 AND [7770 SZA CLA /IF NEW ADDRESS IS > 77777, JMP TOOBIG /THE THING WILL NEVER FIT TAD A1 DCA I BPTR TAD TMP5 DCA A1 JMP I FIT /RETURN LEVLUP, 0 /LEVEL = MAX (LEVEL, OVRSIZ); OVRSIZ=0 TAD I [OVRSIZ TAD LNONUM DCA I NDX7 /RECORD THE SIZE OF THIS OVERLAY TAD I [OVRSIZ+1 /FOR THE SYMBOL MAP PRINTOUT DCA I NDX7 TAD [OVRSIZ JMS I [SETEPT TAD I [LVPTR JMS I [SETBPT JMS MAXCOM DCA I EPT2 DCA I EPTR JMP I LEVLUP MAXCOM, 0 /BPTR = MAX (EPTR, BPTR) TAD I EPTR CIA CLL TAD I BPTR SZA CLA /CHECK HIGH-ORDER WORDS FIRST JMP .+4 /THEY DIFFER TAD I EPT2 CIA CLL TAD I BPT2 /USE LOW ORDER WORDS IF HIGH ORDERS ARE = SZL CLA /IS EPTR > BPTR? JMP I MAXCOM /NO - EXIT TAD I EPTR DCA I BPTR TAD I EPT2 DCA I BPT2 /YES - BPTR=EPTR JMP I MAXCOM GETLEN, 0 CDF 0 /OR CDF 20 TAD I NDX1 /LEN OF ENTRY CDF 10 SNA /=0 MEANS LENGTH HAS ALREADY JMP I GETLEN /BEEN COMPUTED. NE 0 MEANS DCA TMP0 /ENTRY POINT IS THE 1ST IN A NEW MODULE TAD RLEN /UPDATE REL TAD RBLK /BLOCK AND DCA RBLK /LENGTH OF TAD TMP0 /NEW MODULE DCA RLEN JMP I GETLEN GETEXT, 0 /LOOK FOR GST JMS I [GETTYP /EXTERN JMP I (DOCORE /END OF GST TAD I GPTR /TYPE WD TO AC AND [17 /B8-B11 RTR CLL /2=EXTERN SZA CLA /GOT ONE? JMP .-6 /NO, RETRY JMP I GETEXT PAGE LB0BUF= . /START OF PROGRAM START, ISZ XSTRT /IF CHAINED TO CDF 10 TAD I (7644 AND (40 /WAS /S SET FIRST TIME ? SZA CLA DCA SVMAIN /YES, DON'T FORGET SYSTEM-SYMBOLS CLL STA RAL AND I (7643 /AND OUT THE /L SWITCH DCA I (7643 CIF 10 JMP I .+1 XSTRT, PASS0 /THIS SUBROUTINE SHOULD RESIDE IN THE /FIELD 0 I/O BUFFER SINCE IT /EXECUTES ONLY ONCE /SUBROUTINE TO DETERMINE CORE SIZE / /THIS WORKS ON ANY PDP-8 FAMILY COMPUTER. /THE VALUE,FROM 1 TO 10(OCTAL) OF THE 1ST NON-EXISTENT /MEMORY FLD IS RETURNED IN THE AC. / /NOTE--THIS ROUTN MUST BE PLACED IN FLD 0 / CORE, 0 TAD (6203 RDF DCA CORTN CDF 0 TAD I (7777 AND COR70 SNA JMP CORELP CLL RTR RAR JMP CORTN CORELP, CDF 0 /NEEDED FOR PDP-8L TAD TRYFLD /GET FLD TO TST CLL RTL RAL AND COR70 /MASK USEFUL BITS TAD CORELP DCA .+1 /SET UP CDF TO FLD 0 TAD I CORLOC /SAV CURRENT CONTENTS NOP /HACK FOR PDP-8 DCA .-3 TAD .-2 /7000 IS A GOOD PATTERN DCA I CORLOC COR70, 70 /HACK FOR PDP-8.,NO-OP TAD I CORLOC /TRY TO READ BK 7000 7400 /HACK FOR PDP-8,.NO-OP TAD .-1 /GUARD AGAINST WRAP AROUND TAD CORLOC+1 /TAD 1400 SZA CLA JMP .+5 /NON EXISTENT FLD EXIT TAD COR70-6 /RESTORE CONTENS DESTROYED DCA I CORLOC ISZ TRYFLD /TRY NXT HIGHER FLD JMP CORELP TAD TRYFLD TAD (-1 CORTN, 0 JMP I CORE CORLOC, COR70+2 /ADR TO TST IN EACH FLD 1400 /7000+7400+1400=0 TRYFLD, 1 /CURRENT FLD TO TST PAGE *6600 DATCHG, 0 /FIND THE MONTH/YEAR CLL RTR /THIS CODE FINDS THE MONTH RAR /BY CALCULATING THE ADDRESS AND (777 /OF THE CORRECT MONTH CLL RTR /IN THE TABLE OF MONTHS RTR AND (36 TAD (MONTHS-3 /HAVE THE ADDRESS OF MONTH-1 DCA NDX2 /SAVE IT IN FIELD 0, PAGE 0 CDF 0 /CHANGE DATA FIELD TO 0 TAD I NDX2 /GET FIRST 2 CHARS. OF MONTH CDF 10 /CHANGE DATA FIELD TO 1 DCA I (LDATE+2 /INSERT INTO THE TEXT LINE CDF 0 /CHANGE DATA FIELD TO 0 TAD I NDX2 /GET LAST 2 CHARS. OF MONTH CDF 10 /CHANGE DATA FIELD TO 1 DCA I (LDATE+3 /INSERT INTO THE TEXT LINE TAD I (OSDATE /GET THE DATE--FIND THE YEAR AND (7 /GET THE YEAR OFFSET BITS DCA I (YRTEMP /STORE THEM AWAY CDF 0 /CHANGE DATA FIELD TO 0 TAD I (7777 /GET THE DATE EXTENSION BITS CDF 10 /CHANGE DATA FIELD TO 1 AND (1600 /MASK TO GET BITS 3 AND 4 CLL RTR /ROTATE TO GET THEM INTO RTR /BIT POSITIONS 7 AND 8 /TAD (106 /GET THE NEW BASE YEAR TAD I (YRTEMP /ADD THE YEAR OFFSET BITS CIF 10 /CHANGE THE DATA FIELD TO 1 TAD (-36 /70-100 SPA TAD (144 /100 JMP I DATCHG /HAVE THE YEAR GETDAT, 0 TAD I (YRTEMP /GET THE YEAR AND (7700 /MASK AND ROTATE CLL RTR /TO GET THE FIRST RTR /DIGIT (IN SIXBIT) RTR TAD (5500 /STICK A HYPHEN IN FRONT DCA I (LDATE+4 /PUT IN THE TEXT LINE TAD I (YRTEMP /GET THE YEAR AGAIN AND (77 /MASK AND ROTATE TO CLL RTL /GET THE SECOND DIGIT RTL /(IN SIXBIT) RTL TAD (40 /STICK A SPACE AFTER IT CIF 10 /CHANGE INSTRUCTION FIELD TO 1 JMP I GETDAT MONTHS, 5512;0116 /-JAN 5506;0502 /-FEB 5515;0122 /-MAR 5501;2022 /-APR 5515;0131 /-MAY 5512;2516 /-JUN 5512;2514 /-JUL 5501;2507 /-AUG 5523;0520 /-SEP 5517;0324 /-OCT 5516;1726 /-NOV 5504;0503 /-DEC PAGE FIELD 1 /PAGE 0 FLD1 TAGS FOR PASS0 /(PASS 0 LIVES WITH THE USR RESIDENT) NMCTS= 20 MODCNT= 21 LVLCNT= 22 OVRCNT= 23 PTRULS= 24 MXFLD= 25 *2000 /START OF GLOBAL SYMBOL TABLE /BUCKET COMES FIRST, INTERNAL /SYMBOLS AND FIELD 1 CONSTANTS ARE /HERE ALSO. GST RUNS FROM /SYMTBL TO OVLTBL-1 BUCKET, AAAAAA;0;0;0;EEEEEE;0 /A,B,C,D,E,F 0;0;0;0;0;0 /G-L 0;0;0;0;0;0 /M-R 0;0;0;0;0;0 /S-X 0;0 /Y,Z 0;0;0;0;0 /UNUSED BUCKETS MUST BE 0 0 /SPACE (FOR BLANK COMMON) 0;0 POUND /POUND SIGN FOR INTERNAL SYMBOLS, ALL ARE OF THE FORM (POUND XXXXX) TRPSYM, TEXT '#YTRAP' 0 /TRAP VECTOR LEVSYM, TEXT '#YLVL0' 0 /OVERLAY LEVEL SWPSYM, TEXT '#SWAP' 0;0 SASYM, TEXT '#MAIN' 0;0 /STARTING ADDRESS /TITLE LINE FOR LOADER MAP TLINE, TEXT 'LOADER V' *.-1 LXX, VERNUM&70^7+VERNUM+6060 /VERNUM IN SIXBIT PATCH&77^100+40 /PATCH LEVEL LDATE, TEXT ' NO-DA -TE ' STLINE, TEXT 'SYMBOL VALUE LVL OVLY' HLINE, TEXT '= 1ST FREE LOCATION' OTLINE, TEXT 'LVL OVLY LENGTH' SMAPU, ZBLOCK 3 /SYMMAP UNIT, LENGTH, ST BLK # LIMGU, ZBLOCK 3 /LDR IMG " OVRSIZ, 0;0 LVPTR, OVRSIZ SYMX, 1;SYMTBL-2 /SYSTEM SYMBOL TABLE AAAAAA, 0 TEXT /ARGERR/ *.-1 1;0 JARGER EEEEEE, 0 TEXT /EXIT/ 1;0 JEXIT POUND, .+7 TEXT /#ARGER/ *.-1 1;0 JARGER .+7 TEXT /#BAK/ 1;0 JBAK .+7 TEXT /#DATE/ 1;0 JDATE .+7 TEXT /#DEF/ 1;0 JDEF .+7 TEXT /#DISMS/ *.-1 1;0 JDISMS .+7 TEXT /#ENDF/ 1;0 JENDF .+7 TEXT /#EOFSW/ *.-1 1;0 JEOFSW .+7 TEXT /#EXIT/ 1;0 JEXIT .+7 TEXT /#HANG/ 1;0 JHANG .+7 TEXT /#IDLE/ 1;0 JIDLE .+7 TEXT /#INT/ 1;0 JINT .+7 TEXT /#RDAO/ 1;0 JRDAO .+7 TEXT /#READO/ *.-1 1;0 JREADO .+7 TEXT /#RENDO/ *.-1 1;0 JRENDO .+7 TEXT /#RETRN/ *.-1 1;0 JRETRN .+7 TEXT /#REW/ 1;0 JREW .+7 TEXT /#RSVO/ 1;0 JRSVO .+7 TEXT /#RUO/ 1;0 JRUO .+7 TEXT /#SWAP/ 1;0 JSWAP .+7 TEXT /#T812/ 1;0 JT812 .+7 TEXT /#UE/ 0 1;0 JUERR .+7 TEXT /#WDAO/ 1;0 JWDAO .+7 TEXT /#WRITO/ *.-1 1;0 JWRITO 0 /LAST ONE TEXT /#WUO/ 1;0 JWUO SYMTBL, 0 /START OF GST /PASS0- THIS IS THE BEGINNING OF PASS0 PASS0, JMP .+4 /NORMAL ENTRY PT DCA CDSW /CHAINED TO ENTRY PT - NO DECODE 1ST TIME TAD (7616 DCA PTRIO TAD (-10 DCA LVLCNT /SET LEVEL AND OVERLAY COUNTERS DCA OVRCNT CIF 0 JMS I (CORE /DETERMINE CORE SIZE DCA MXFLD JMS I (CORMOV CDF 0 0-1 CDF 0 LB0BUF-1 /MOVE LOWER FIELD 0 TO A SAFE PLACE -2000 CDF 0 TAD I (OSJSWD /GET JOB STATUS WORD AND (376 /CLEAR DESIRED FLAGS TAD (3403 /SET NO RESTART, USR AND CD AREAS CLEAR DCA I (OSJSWD /AS WELL AS BATCH FLAG CDF 10 TAD I (OSDATE SNA JMP NODATE CLL RTR /ROTATE AND MASK TO GET THE DAY RAR AND (37 JMS MAKSXB /CONVERT TO SIXBIT DCA I (LDATE+1 /PUT THE DAY INTO THE TEXT LINE TAD I (OSDATE /GET THE DATE---FIND MONTH CIF 0 /CHANGE DATA FIELD TO 0 JMS I (DATCHG /FIND THE MONTH/YEAR JMS MAKSXB /CONVERT THE YEAR TO SIXBIT DCA YRTEMP /STORE IT AWAY CIF 0 /CHANGE INSTRUC. FIELD TO 0 JMS I (GETDAT /PRINT THE YEAR DCA I (LDATE+5 /PUT REST OF YEAR IN TEXT LINE /SET UP OTHER POINTERS TO MODULE TABLES NODATE, TAD (-NUMMOD DCA I (MCTTBL TAD (MCTTBL+1 DCA NMCTS /INITIALIZE MODULE CT TBL PTR TAD (MODTBL+2 DCA PTRULS /INITIALIZE MODULE TBL PTR DCA MODCNT DCA I (MODTBL /CLEAR LIBRARY UNIT DCA I NMCTS /CLEAR FOR 1ST LEVEL MODULE COUNTS CDSW, JMP I (RALFLP /ZEROED IF CHAINED TO JMP I (DECO MAKSXB, 0 DCA TMP0 DCA TMP1 TAD TMP0 TAD (-12 ISZ TMP1 SMA JMP .-3 /SUBTRACT 10 IN A LOOP TAD (5772 /AS GOOD A NUMBER AS ANY DCA TMP0 TAD TMP1 CLL RTL RTL RTL /GET THE TENS DIGIT INTO POSITION TAD TMP0 JMP I MAKSXB YRTEMP, 0 PAGE /DECODE COMMAND DECODER INPUT RALFLP, JMS I (200 5 /COMMAND DECODE 2214 /.RL DEFAULT EXTENSION TAD (7616 DCA PTRIO TAD I (OS8SWS+1 AND (40 CDF 0 SZA CLA /IS /S SWITCH ON? DCA I (SVMAIN+LB0BUF /CLEAR (RELOCATED) SVMAIN DECO, CDF 10 /FOR FULL SYMBOL MAP LISTING TAD I (7600 /CHK FOR LOADER IMAGE FILE SNA /OUTPUT FILE? JMP SM /NO AND (0017 /MUST BE AN "MS" DEV TAD (OS8DCB-1 DCA TMP0 TAD I TMP0 SPA CLA /IS IT? JMP .+4 /YES SM1, TAD (DEVERR /NO,ERR JMS I (ERORR JMP RALFLP TAD I P7604 SNA TAD (1404 /.LD DCA I P7604 /INTO EXTENSION IF NONE SPECIFIED JMS I (CORMOV /MOVE LOADER IMAGE FILE NAME CDF 10 7600-1 CDF 0 /INTO FIELD 0 LDRNAM+LB0BUF-1 -5 SM, TAD I (7605 /CHK FOR SYM MAP FILE SNA JMP SM2 /NONE AND (17 TAD (OS8DCB-1 DCA TMP0 TAD I TMP0 RAL /LOOK AT "READ ONLY" BIT IN DCB SPA CLA JMP SM1 /ERROR - NO GOOD FOR OUTPUT TAD I (7611 SNA TAD (1423 /.LS DEFAULT MAP EXTENSION DCA I (7611 JMS I (CORMOV /MOVE SYMMAP FILE NAME INTO FIELD 0 CDF 10 P7604, 7605-1 CDF 0 LDRNAM+LB0BUF+4 -5 /COLLECT INPUT FILES SM2, TAD I (OS8SWS CLL RAR SZL CLA / IS /L SWITCH ON? JMP LIBRAR /YES - THIS IS A LIBRARY FILE FILELP, TAD I PTRIO SNA JMP FINLIN /NO MORE INPUT FILES DCA TMP0 TAD TMP0 AND (17 ISZ PTRULS DCA I PTRULS /STORE UNIT NUMBER TAD TMP0 AND (7760 CLL RTR RTR TAD (7400 CIA ISZ PTRULS DCA I PTRULS /STORE LENGTH TAD I PTRIO ISZ PTRULS DCA I PTRULS /STORE STARTING BLOCK NUMBER ISZ MODCNT JMP FILELP /CONTINUE FINLIN, JMS I (CORDSW /CHECK C AND O SWITCHES TAD I (OS8SWS AND (40 SZA CLA /IF THE /G SWITCH IS ON JMP I (EOPAS0 /ITS THE END TAD I (OS8SWS-1 SPA CLA /IF AN ALTMODE TERMINATED THE LINE, JMP I (EOPAS0 /DITTO TAD (-MCTTBL-1 TAD NMCTS SZA CLA /ARE WE STILL IN THE MAIN SECTION? JMS I (UPDMOD /NO - UPDATE OVERLAY & MODULE COUNTS JMP RALFLP LIBRAR, TAD I PTRIO AND (17 DCA I (MODTBL /STORE LIBRARY PARAMETERS TAD I PTRIO /NEGLECTING LENGTH, WHICH WILL DCA I (MODTBL+2 /BE FILLED IN LATER TAD I PTRIO SNA CLA JMP FINLIN /ONLY ONE FILE ALLOWED ON THE LINE TAD (MIERR JMP SM1+1 /OTHERWISE ITS MIXED INPUT PAGE /UPDMOD- UPDATE MODULE COUNT TBL UPDMOD,0 CLL TAD MODCNT /UPDATE -NUM OF TAD I (MCTTBL /UNUSED MODULES DCA I (MCTTBL SZL JMP MAXRLF /MAX NUMBER EXCEEDED ISZ OVRCNT /BUMP OVERLAY NUMBER SKPCLA, SKP CLA JMP MAXOVL /MORE THAN 16 OVERLAYS IN A LEVEL TAD MODCNT /UPDATE +NUM OF TAD I NMCTS /MODULES IN LAST LEVEL SNA /**** JMP I UPDMOD DCA I NMCTS ISZ NMCTS /ADV PTR TO NXT LOC DCA I NMCTS /ZERO THE NXT LOC IN PREPARATION DCA MODCNT /CLR CNT FOR NXT LEVEL JMP I UPDMOD /CORDSW- LOOK FOR SWS C AND O CORDSW, 0 TAD I (OS8SWS+1 AND (10 SNA CLA /CHECK FOR /U SWITCH JMP CHKCSW CDF 0 TAD SKPCLA /INHIBIT LEVEL CHECKING DCA I (TSTTRP CDF 10 CHKCSW, TAD I (OS8SWS RTL SPA CLA JMP I (RALFLP TAD I (OS8SWS+1 RTL SMA CLA JMP I CORDSW /O-SWITCH JMS UPDMOD ISZ NMCTS /ADV PTR FOR NXT GUY DCA I NMCTS /CLR FOR NXT LEVEL MOD CNT TAD (-21 DCA OVRCNT ISZ LVLCNT /BUMP LEVEL COUNTER JMP I (RALFLP TAD (MXLERR JMP MAXRLF+1 /TOO MANY LEVELS MAXRLF, TAD (MXRERR JMS ERORR CDF CIF 0 JMP I (7605 MAXOVL, TAD (MXOERR JMP MAXRLF+1 /ERORR- PRINTS OUT ERROR MESSAGES OF A / BUFR LOCATED IN FLD1 / ENTER WITN ADR OF BUFR IN AC / ERORR, 0 DCA BFADR CDF 10 /CALL TTYHAN JMS I (CORMOV CDF 0 LB0BUF-1 /MOVE LOWER FIELD 0 BACK CDF 0 /SO WE CAN USE THE MESSAGE HANDLER 0-1 -2000 CIF 0 JMS I (TTYHAN CDF 10 BFADR, 0 JMP I ERORR MIERR, TEXT /MIXED INPUT/ DEVERR, TEXT /BAD OUTPUT DEVICE/ MXRERR, TEXT /TOO MANY RALF FILES/ MXLERR, TEXT /TOO MANY LEVELS/ MXOERR, TEXT /TOO MANY OVERLAYS/ PAGE /PASS1, PASS2 INITIALIZATION EOPAS0, JMS I (UPDMOD /BUMP COUNTS FOR LAST LINE OF INPUT ISZ NMCTS DCA I NMCTS /PUT IN A DOUBLE ZERO AT THE END JMS I (CORMOV CDF 0 LB0BUF-1 CDF 0 0-1 /MOVE LOWER FIELD 0 BACK INTO PLACE -2000 TAD I (MODTBL SZA CLA /USER-SPECIFIED LIBRARY? JMP RDLIBH /YES CDF 0 TAD I (SBLOCK /ON CCL-DEVICE CDF 10 DCA I (MODTBL /STORE UNIT AND BLOCK # TAD I (MODTBL JMS I (200 2 /LOOKUP LIBRY 0 JMP NOLIB /FORLIB.RL NOT FOUND TAD .-3 /GET STARTING BLOCK DCA I (MODTBL+2 RDLIBH, STL RTR DCA I (MODTBL+1 /JUST TO BE CAREFUL CIF 0 JMS I (IOHAN /READ BLOCK 0 OF THE LIBRARY CATALOG MODTBL 0210 PLB, RALFBF 0 STA TAD I PLB SNA CLA /IS IT AN HONEST - TO - GOD LIBRARY? JMP .+4 /YES NOLIB, DCA I (MODTBL DCA I (MODTBL+2 DCA I (RALFBF+3 /ZERO COUNT WORD IN BUFFER TAD I (RALFBF+3 DCA I (MODTBL+1 /STORE LENGTH OF CATALOGUE TAD (LHDR-1 DCA NDX0 TAD (-400 DCA TMP0 DCA I NDX0 /0 OUT ISZ TMP0 /LDR HDR JMP .-2 /GET PAGE 0 /PASS1 INITIALIZATION CONTINUED TAD I (MCTTBL /UNUSED DCA TMP2 /MODULES TAD (MCTTBL+2 /GET NUMBER OF OVERLAYS DCA NDX0 / IN EACH LEVEL TAD (QUSRLV+4 /WHERE THE DCA TMP0 /CNTS GO IN JMP BY0 /LDR HDR BLK LOP0, ISZ I TMP0 /INCREMENT NUMBER OF OVERLAYS IN THIS LEVEL TAD I NDX0 SZA CLA /END OF LEVEL? JMP LOP0 /NO TAD (4 /THIS LEVEL TAD TMP0 DCA TMP0 BY0, DCA I TMP0 /RESET CNT TAD I NDX0 /0,0 ENDS SZA CLA /MOD CNT TBL JMP LOP0 /DO MORE PTR TO TAD I (MODTBL+1 /GET LENGTH OF LIBRARY CATALOG DCA TMP4 /BLOCKS TAD TMP2 /CHK FOR MAX SZA CLA /NUM OF RALFS 0=MOD TBL IS FULL TAD I (MODTBL /CHK FOR NO CDF DCA I (LIBRSW /LIBRARY AND SET SWITCH ACCORDINGLY TAD TMP2 /-NUM LEFT DCA I (MLEFT /OF RALF MODS TAD (SYMTBL-1 /PTR TO TOP DCA I (NDX4 /OF GST TAD I (OSJSWD AND (7377 /KILL "BATCH PROTECTED" FLAG DCA I (OSJSWD AC7776 /IS THERE TAD MXFLD /GREATER THAN 12K OF CORE SPA SNA CLA /? JMP LS16K /NO TAD (200^12!30 /SET TXT I/O DCA I (TXTBLK-2 /BUFFS UP IN FLD 3 TAD (-5000 /-WDCNT (12 DCA I (TXTWDS /BLKS) TAD (6231 /CDF 30 DCA I (RDTCDF LS16K, TAD (7700 /USR IS NOT DCA I (USR /IN CORE CDF 10 JMP I (INIBFS LIBRY, FILENAME FORLIB.RL PAGE /THIS IS THE INITIAL BINARY BUFFER TABLE R= LDBUFS-BUFTAB BUFTAB, .+4+R; 0; 0; 3200 /03200-05177 B8KPT, .+4+R; 0; 0; 5200 /05200-07177 .+4+R; 0; 0; 0020 /20000-21777 B12KPT, .+4+R; 0; 0; 2020 /22000-23777 B16KPT, .+4+R; 0; 0; 4020 /24000-25777 .+4+R; 0; 0; 0040 /40000-41777 B20KPT, .+4+R; 0; 0; 2040 /42000-43777 .+4+R; 0; 0; 4040 /44000-45777 .+4+R; 0; 0; 0050 /5000-51777 0; 0; 0; 2050 /52000-53777 INIBFS, TAD MXFLD TAD (JMP STBPTR-1 DCA .+1 HLT /DISPATCH ON NUMBER OF FIELDS STBPTR, DCA B8KPT DCA B12KPT DCA B16KPT DCA B20KPT NOP NOP /NOT SET UP TO USE MORE THAN 24K NOP JMS I (CORMOV CDF 10 BUFTAB-1 /MOVE THE BINARY BUFFER TABLE CDF 10 LDBUFS-1 /INTO A SAFE PLACE -50 CDF 0 TAD LVLCNT /SET -NUM OF TAD (11 /LEVELS CIA DCA I (NLVL TAD (-5 /NUM OF LIBR DCA TMP2 /BLKS FOR 8K CLA CMA TAD MXFLD SNA CLA /GREATER THAN 8K CORE? JMP TO8K /NO SET LIBR ARGS DCA I (LBARG+1 TAD (200^12!20 /12 BLKS FLD2 DCA I (LBARG TAD (6221 /CDF 20 DCA I (LBFLD TAD (6221 DCA I (GETLEN+1 TAD (-12 DCA TMP2 TO8K, TAD TMP2 /WILL LIBR TAD TMP4 /BE CORE SMA SZA CLA /RESIDENT? DCA I (RESFLG /NO TAD (SYMTBL-1 DCA I (NDX0 CDF 10 TAD (ESDPG-1 /ENTER DEFAULT DCA NDX0 /VALUES FOR TAD (-200 /ESD REF PAGE DCA TMP0 /IT SAVES TAD (SYMTBL+5 /PROBLEMS WITH DCA I NDX0 /EXTERNS ISZ TMP0 JMP .-3 CLA STL RTL DCA I (LHDR /STORE LOADER IMAGE CODE IN HEADER TAD (VERNUM DCA I (QVERNO /STORE LOADER VERSION NUMBER CIF 0 JMP I (STPAS1 PAGE /CORMOV- A CORE MOVE FOR A CHUNK OF CORE IN / ANY FLD TO ANY FLD. / / CALL JMS CORMOV / CDF Z1 /Z1=FROM FLD / ADDR1 /ADDR OF (1ST LOC-1) / CDF Z2 /Z2=TO FLD / ADDR2 /ADDR OF (1ST LOC-1) / -N /-OCT NUM OF WDS TO MOV / CORMOV, 0 CLA CMA TAD CORMOV DCA NDX0 TAD I NDX0 DCA TOCDF-2 TAD I NDX0 DCA NDX1 TAD I NDX0 DCA TOCDF TAD I NDX0 DCA NDX2 TAD I NDX0 DCA TMP0 0 TAD I NDX1 TOCDF, 0 DCA I NDX2 ISZ TMP0 JMP TOCDF-2 CDF 10 JMP I NDX0 /RTN FIELD 0 *200 $$$$$