.TITLE INSTALL TASK (...INS) / / COPYRIGHT (C) 1976 / 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 INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS / SOFTWARE, OR ANY OTHER COPIES THEREOF, MAY NOT BE PRO- / VIDED 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 DOCUMENT IS SUBJECT TO CHANGE / WITHOUT NOTICE AND SHOULD NOT BE CONSTRUED AS A COM- / MITMENT BY DIGITAL EQUIPMENT CORPORATION. / / DEC ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY / OF ITS SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY / DEC. / .EJECT / / / EDIT #13 SAVE-REMOVE-INSTALL M. HEBENSTREIT 4/6/76 / EDIT #23 MAY-12-76 (SCR) MODIFY SAVE-REMOVE-INSTALL FIX / EDIT #24 MAY-13-76 (SCR) FURTHER CLEANUP / EDIT #25 MAY-17-76 (SCR) POINTER OFF BY INSSZ / / /WRITTEN TO HANDLE BLOCK MODE (400 WORDS/BLOCK) MASS STORAGE DEVICES /SUCH AS THE RP15 THAT WILL NOT HANDLE WORD ADDRESSABILITY. HOWEVER, /IT WILL STILL WORK ON A WORD ADDRESSABLE DEVICE (SUCH AS RF15) / /THE ALLOCATION SIZE FOR THE TASK WAS IN A SPECIAL AREA JUST BEFORE THE /ACTUAL TASK. THIS AREA WAS 10(8) WORDS LONG DUE TO THE FACT THAT THE /LOW 3 BITS STILL HAD TO CONTAIN THE UNIT NUMBER. THE ALLOCATION WAS /EXTENDED FOR 10(8) WORDS, AND THE STL NODE DISK ADDRESS WAS SET UP /AS 10(8) MORE THAN IT WOULD HAVE BEEN. DUE TO THE FACT THAT ALL DISK /TRANSFERS IN BLOCK MODE MUST START ON A SECTOR(BLOCK) BOUNDARY, THIS /HAS NOW BEEN EXTENDED TO 400(8) WORDS. PERHAPS SOME USEFUL FUNCTION /CAN BE DEVISED TO KEEP SOME MORE INFORMATION IN THE NOW WASTED 377(8) /WORDS. / EDIT #3 S. ROOT. WORDS 2-4 NAME, NAME, BASE . FOR RECONFIGURATION. /(THE REMOVE TASK HAS BEEN MODIFIED TO LOOK IN THE RIGHT PLACE.) / / X10=10 X11=11 X15=15 .IFUND TKNAM R1=101 R2=102 REMBLK=311 /1ST BLK IN SAVE-INSTALL-REMOVE CHAIN P.N1=2 /PBDL OFFSET TO PARTITION NAME 1ST 1/2 P.N2=3 /PBDL OFFSET TO PARTITION NAME 2ND 1/2 P.BS=4 /PBDL OFFSET TO PARTITON BASE ECLA=641000 /CLEAR AC WITH EAE NADD=107 /NODE ADDITION PENP=115 /PICK EMPTY NODE FROM POOL SNAM=123 /SCAN DEQUE FOR NAME MCRRI=171 /MCR REQUEST INHIBIT FLAG IFAC=172 /INITIALIZE 'FAC' FAC=174 /FETCH A CHARACTER (FROM THE COMMAND LINE) STKL=242 /SYSTEM TASK LIST PBDL=250 /PARTITION BLOCK DESCRIPTOR LIST SCDL=254 /SYSTEM COMMON BLOCKS DESCRIPTION LIST .ENDC RELHWE=235 /CONTAINS A SKIP IF RELOCATE ON MACHINE FPHDW=236 /CONTAINS A SKIP IF FP15 ON MACHINE / INSTAL=. /BEGINNING OF INSTALL ROUTINE I.BLOK=. /(MJH-11) ***** WARNING 1ST 400(8) LOCATIONS OVERLAYED *** .IFDEF TKNAM I.TSKN=TKNAM /IF ASSEMBLED WITH SCF, THEN THIS IS A SUBROUTINE 0 /THIS IS ITS ENTRY POINT .ENDC DZM I.DSKA /DISK AREA NOT ASSIGNED YET DZM I.DFPR /NO DEFAULT PRIORITY YET LAC (I.ALSZ /(027) START CORRECTLY DAC I.ACPB+3 AND (70000 /(MJH-13) TCA /(MJH-13) DAC XRADJ /(MJH-13) .IFUND TKNAM /STANDARD INSTALL TASK - A LINE MUST BE DECODED LAW -2 /SET UP THE COMMA COUNT DAC I.BCNT /FOR PARTITION NAME SCAN JMS I.GTNM /CREATE A SIXBIT NAME BLOCK FROM THE LINE I.TSKN /PLACE IT HERE JMP I.ER01 /GO HERE ON AN ERROR JMS I.TER /WAS THE DELIMITING CHARACTER A DELIMITER? JMP I.NOD /YES, NO PRIORITY SPECIFIED SKP /OVER THE FIRST CHARACTER FETCH I.MPRL JMS* (FAC) /NO, SEE IF THERE IS A PRIORITY SPECIFIED SAD (40 /SPACE? JMP I.MPRL /YES, KEEP LOOKING JMS I.TER /TERMINATOR? JMP I.NOD /YES, NO PRIORITY GIVEN SAD (54) /COMMA? JMP I.PRCK /YES, IS IT THE SECOND? I.MPRI LMQ /A CHARACTER, IS IT A NUMBER? AAC -60 /SHOULD STILL BE POSITIVE SPA /SKIP IF SO JMP I.ER01 /SYNTAX ERROR AAC -12 /SHOULD GO NEGATIVE SMA /YES? JMP I.ER01 /NO LACQ /BRING IT BACK TAD (AAC-60) /CREAT AN AAC N INSTRUCTION DAC I.AACN /SAVE IT LAC I.DFPR /PICK UP THE DEFAULT PRIORITY 673122 /CLL!MUL 12 /TIMES 10 LACQ /BRING THE LOW ORDER PART OUT I.AACN XX /ADD IN WHAT WE HAVE DAC I.DFPR /SAVE THIS TAD (-1000) /IS IT TOO LARGE? SMA!SZA /SKIP IF NOT JMP I.ER01 /YES, SYNTAX ERROR JMS* (FAC) /NEXT CHARACTER SAD (40) /SPACE? JMP I.PART /YES, SCAN TO SEE IF THE PARTITION IS SPECIFIED SAD (54) /COMMA? JMP I.PART /YES JMS I.TER /TERMINATOR? JMP I.NOD /YES, PROCEED JMP I.MPRI /NO, CONTINUE WITH NUMBER BUILDING I.PRCK ISZ I.BCNT /IS THIS THE SECOND COMMA (OMMITTING PRIORITY)? JMP I.MPRL /NO, CONTINUE SCAN I.PART JMS I.GTNM /MAKE ANOTHER NAME I.PTNM /AT THIS ADDRESS JMP I.PERR /POSSIBLE ERROR, CHECK IT OUT JMP .+3 /NAME SPECIFIED, DON'T ZERO IT I.NOD DZM I.PTNM /CLEAR PARTITION NAME SPECIFICATION JMS* (FAC) /NOW SCAN FOR A TERMINATOR SAD (40) /SPACE? JMP .-2 /YES, KEEP SCANNING JMS I.TER /TERMINAL CHARACTER? JMP I.INST /YES, START THE REAL WORK OF INSTALLING I.ER01 LAC (I.ME01 /ERROR IN SYNTAX, SHOW IT JMP I.ERRR / / /ROUTINE TO CREATE A NAME. THE TERMINATING CHARACTER IS LEFT IN THE /AC UPON EXIT. IT CAN ONLY BE A TERMINATOR, SPACE, OR A COMMA. / I.GTNM XX /ENTRY/ARG/ERROR EXIT/NORMAL EXIT LAW -2 /ALLOWED TWO TRIES FOR TWO WORDS DAC I.ACNT /SET THE COUNT LAC* I.GTNM /PICK UP THE ADDRESS OF THE BLOCK DAC I.WRK /SAVE IT ISZ I.GTNM /UP TO NORMAL RETURN I.GTLP DZM* I.WRK /CLEAR THE CHARACTER WORD JMS I.GTC6 /GET A SIXBIT CHARACTER ALSS 14 /PUT IT IN IT'S PROPER PLACE DAC* I.WRK JMS I.GTC6 /SECOND ALSS 6 /PUT IT WHERE IT BELONGS XOR* I.WRK DAC* I.WRK JMS I.GTC6 /LAST CHAR XOR* I.WRK DAC* I.WRK /SIXBIT IS BUILT UP ISZ I.WRK /UP TO NEXT WORD ISZ I.ACNT /IF ALLOWED TO GO FOR MORE JMP I.GTLP /YES, CONTINUE JMS I.GTFC /NO, DONE, GET NEXT CHARACTER ISZ I.GTNM /TERMINATOR, LEAVE WITH IT IN THE AC AND A SKIP RETURN JMP* I.GTNM /RETURN TO INDICATE DONE I.GTFC XX /SUB TO FETCH A CHARACTER AND SKIP IF ","," ", OR TERM JMS* (FAC) /PICKUP CHAR SAD (40) /TERMINATOR CHAR? JMP* I.GTFC /YES SAD (54) /? JMP* I.GTFC /YES JMS I.TER /? JMP* I.GTFC /YES ISZ I.GTFC /NO, SKIP RETURN JMP* I.GTFC I.GTC6 XX /SUB TO GET THE NEXT CHARACTER AND RETURN IT AS SIXBIT JMS I.GTFC /FETCH CHARACTER, SKIP IF NORMAL JMP I.GTQQ /NOT NORMAL CHAR, WHAT IS HAPPENING? LMQ /SAVE THE CHARACTER AAC -40 /IS IT IN THE SIXBIT SET? SPA /SKIP IF POSSIBLY JMP I.GTCE /NO, ERROR AAC -100 /STILL IN THERE? SMA!SZA /SKIP IF SO JMP I.GTCE /NO, ERROR SAD (-40) /WAS IT THE CHARACTER "@"? JMP I.GTCE /YES, ERROR LACQ /SEEMS TO BE OK AND (77) /TRIM IT DOWN JMP* I.GTC6 /AND LEAVE I.GTCE LACQ /ERROR JMP* I.GTNM /LEAVE WITH TERMINAL CHARACTER IN AC AT ERROR EXIT I.GTQQ LMQ /SAVE TERMINAL CHARACTER LAC* I.WRK /IS THIS THE FIRST OF THE THREE? SNA /SKIP IF NOT JMP I.GTQR /YES, SEE IF THIS IS THE FIRST OF ALL I.GTOK LACQ /ALL IS WELL, RETURN THE TERMINATING CHARACTER IN ISZ I.GTNM /IN THE AC WITH A SKIP RETURN ISZ I.WRK /SET UP FOR POSSIBLE CLEARING OF SECOND WORD ISZ I.ACNT /SKIP IF NOW WORKING ON SECOND WORD DZM* I.WRK /CLEAR SECOND WORD IF IT HASN'T BEEN CLEARED JMP* I.GTNM I.GTQR LAW -2 /CHECK TO SEE SAD I.ACNT /IF THE COUNT IS AT -2 SKP /IT IS, CHECK THE CHARACTER JMP I.GTOK /IT IS NOT, LEAVE WITH TERMINATING CHARACTER IN AC LACQ /IS THIS CHARACTER A SPACE? SAD (40) /SKIP IF NOT JMP I.GTC6+1 /IT IS, IGNORE LEADING SPACES JMP* I.GTNM /IT IS NOT, ERROR EXIT WITH CHAR IN AC / /ROUTINE TO CHECK TO SEE IF THE 'ERROR' IN CREATING THE PARTITION /NAME IS REALLY THE LACK OF ANY CHARACTERS FOR THE NAME. / I.PERR JMS I.TER /IS THE TERMINAL CHARACTER A TERMINATOR? JMP I.NOD /YES, NO PARTITION NAME GIVEN JMP I.ER01 /NO, SYNTAX ERROR / I.TER XX /ROUTINE TO SKIP IF NOT CR OR ALTMODE SAD (15) /CR? JMP* I.TER /YES SAD (175) /ALTMODE? JMP* I.TER /YES ISZ I.TER /NEITHER, JMP* I.TER /SKIP RETURN / I.INST=. /REAL WORK STARTS HERE .ENDC / /SCAN THE STL TO SEE IF THE TASK EXISTS ALREADY / LAC (STKL) DAC* (R1) LAC (I.TSKN) /ADDRESS OF THE NAME DAC* (R2) JMS* (SNAM) /GO LOOK (ALMOST ALL REGISTERS WIPED OUT) SKP /NOT FOUND, ALL IS WELL JMP I.ER02 /FOUND, ERROR / /CODE TO DO THE INSTALL WORK: / /NOTE: ALL DISK ADDRESS CARRIED AROUND DURING PROCESSING, AND PASSED ON /TO THE RSX EXECUTE PROGRAM VIA THE LINK TABLE ARE OF THE FORM / BLOCK NUMBER * 400 + UNIT NUMBER. THE 'ADD' INSTRUCTION INSTEAD OF THE /'TAD' INSTRUCTION IS USED TO CALCULATE DISK ADDRESSES, AS THIS WILL /INCREMENT THE UNIT NUMBER IF AN OVERFLOW OCCURS. / / .IFUND TKNAM CAL ATTACH /ATTACH THE LUN-5 DEVICE CAL I.WAIT /WAIT FOR THE EV LAC I.EV /ALL OK? SMA /SKIP IF NOT JMP I.OVRY /YES, CONTINUE SAD (-6) /NO ATTACH ALLOWED? SKP /TRUE, SO CONTINUE JMP I.ER13 /TREAT THIS AS A FILE NOT FOUND SITUATION I.OVRY=. .ENDC / JMS SEEK /SEEK THE FILE LAC (377777) /FIND LINK #377777 FOR INFO DAC I.LKNM / DZM I.ACNT /COUNTING THE LINKS ON THE WAY JMS I.FLNK /GO DO IT LAC INBUF+4 /BASE OF BLANK COMMON DAC I.BCBS /SAVED FOR PATCHING / LAC I.ACNT /THE COUNT OF EXTERNAL LINKS+1 FOR THE ALLOCATION ALSS 10 /MULTIPLY BY 400 TAD INBUF+5 /NOW WE HAVE THE NUMBER OF BLOCKS *400 AAC 377 /NEEDED TO HOLD THE IMAGE AND (-400) /ON THE DISK, WITH EACH OVERLAY DAC I.ALSZ /STARTING ON A BLOCK BOUNDARY / LAC INBUF+7 /SAVE THE BASE ADDRESS OF THE LINK TABLE DAC I.LTBS / LAC INBUF+6 /AND THE SIZE OF THE RESIDENT IMAGE DAC I.RISZ / LAC INBUF+11 /SAVE THE DAC I.ENTR /ENTRY POINT FOR THE TASK SMA /IS FP15 REQUIRED? JMP .+3 /NO XCT* (FPHDW) /SKIP IF FP IS THERE JMP I.ER15 /NO, BUT IT IS NEEDED - ERROR DZM I.XM /(MJH-11) CLEAR XVM MODE BITS LAC I.ENTR /(MJH-11) IS THIS TASK EXEC MODE? RTL /(MJH-11) SMA /(MJH-11) JMP I.OVXM /(MJH-11) YES -- LEAVE XM BITS CLEARED LAC INBUF+16 /(MJH-11) NO -- GET XM BITS DZM INBUF+16 /(MJH-11) CLEAR GARBAGE OUT OF INBUF+16 PAL /(MJH-11) SAVE XM BITS TEMPORARILY AND (1 /(MJH-11) IS TASK IN XVM MODE? SNA /(MJH-11) JMP .+4 /(MJH-11) NO LAC I.XM /(MJH-11) YES -- SET UP XVM MODE BITS XOR (000140 /(MJH-11) DAC I.XM /(MJH-11) PLA /(MJH-11) RETRIEVE FORMER CONTENTS OF INBUF+16 AND (2 /(MJH-11) IS TASK IN IOT MODE? SNA /(MJH-11) JMP .+4 /(MJH-11) NO LAC I.XM /(MJH-11) YES -- SET UP IOT MODE BIT XOR (20 /(MJH-11) DAC I.XM /(MJH-11) I.OVXM=. / .IFUND TKNAM LAC I.PTNM /WAS THE PARTITION NAME SPECIFIED IN THE COMMAND? SZA /SKIP IF NOT JMP .+5 /OVER THIS IF SO .ENDC LAC INBUF+12 /MOVE THE PARTITION NAME IN DAC I.PTNM LAC INBUF+13 DAC I.PTNM+1 / LAC INBUF+14 /SAVE THE BASE DAC I.CORB /ADDRESS OF THE PARTITION ACCORDING TO TKB DAC I.LCOR /SAVE THIS FOR LINK TABLE EXPANSION (&LINK #0) / LAC INBUF+15 /GET THE MAXIMUM TASK REGISTER AAC 377 /FORCE IT TO 400 WORD INCREMENTS AND (-400) DAC I.MXTR /SAVE IT LAC INBUF+15 /IF SIZE IS 401,1001, ETC. ADD 400 AND (-400 /TO MAX TASK REG. SAD INBUF+15 SKP JMP .+4 LAC I.MXTR TAD (400 DAC I.MXTR LAC I.ENTR /NOW WE SEE IF THAT WAS A MISTAKE AND THIS IS RTL /REALLY AN EXEC MODE TASK SPA /SKIP ON MISTAKE JMP I.OVRX /NO, WE DID GOOD, WELL DIDN'T WE???? LAC INBUF+14 /PICK UP THE PARTITION BASE ADDRESS TCA /NEGATE TAD INBUF+15 /NOW WE HAVE THE SIZE -1 OF THE TASK IAC /SO FIX IT UP DAC I.MXTR /AND REPLACE OUR ERROR / I.OVRX LAC (PBDL) /NOW WE SCAN THE PARTITION BLOCK DESCRIPTOR LIST DAC* (R1) /FOR THIS PARTITION LAC (I.PTNM) /NAME DAC* (R2) / JMS* (SNAM) /GO DO IT JMP I.ER03 /NOT FOUND, WE HAVE TROUBLE HERE DAC I.PBAD /FOUND, SAVE THE ADDRESS FOR LATER AAC 4 /AND UP TO THE ADDRESS OF DAC I.WRK /THE PARTITION BASE ADDRESS / LAC I.ENTR /PICK UP THE TASK ENTRY POINT AGAIN RTL /AC0 IS THE PROTECTION INDICATOR SPA /SKIP IF NOT PROTECTED JMP I.RELT /RELOCATED TASK, CHECK IT OUT LAC* I.WRK /NOT RELOCATED - WAS THE PARTITION BASE SPECIFIED SAD INBUF+14 /CORRECTLY TO TKB? JMP I.PARC /YES , GO CHECK THE PARTITION JMP I.ER04 /NO, ERROR I.RELM LAC I.DFPR /PRIORITY REQUESTED? SZA /SKIP IF NOT JMP I.CBCK /IF SO, USE IT - NOW CHECK COMMON BLOCKS LAC INBUF+10 /WAS A PRIORITY SPECIFIED TO TKB? SNA /SKIP IF SO JMP I.ER12 /NO, NO PRIORITY AT ALL - ERROR DAC I.DFPR /YES, SAVE THIS I.CBCK LAC (INBUF+15) /SET UP TO SCAN THE COMMON BLOCKS DAC* (X15) /ADDRESS OF LIST LAC* X15 /PICK IT UP SNA /ANYTHING THERE? JMP I.ALLD /NO, ALLOCATE THE DISK SPACE LAC* (X15) /YES, SET UP TO SCAN DAC* (R2) /THE SYSTEM COMMON BLOCK LIST LAC (SCDL) /FOR THIS COMMON BLOCK DAC* (R1) /NAME JMS* (SNAM) /GO DO IT - FOUND? JMP I.ER09 /NO, ERROR AAC 4 /YES, SET UP TO COMPARE DAC* (X10) /THE BASE AND SIZE LAC* X15 /SCAN OVER THE NAME SECOND HALF LAC* X15 /ARE THE BASES THE SAME? SAD* X10 /SKIP IF SO SKP JMP I.ER09 /NO, ERROR LAC* X15 /ONCE MORE SAD* X10 /FOR THE SIZES JMP I.CBCK+2 /ALL OK, KEEP LOOKING JMP I.ER09 /NO, ERROR / I.RELT XCT* (RELHWE) /DO WE HAVE RELOCATION HARDWARE? JMP I.ER14 /NO, SHOW THE ERROR I.PARC ISZ I.WRK /YES, CHECK THE SIZE OF THE PARTITION LAC* I.WRK /TO SEE IF THIS WILL FIT TCA /NEGATE TAD I.MXTR /AND ADD THE HIGHEST TASK REGISTER IN SMA!SZA /WILL IT FIT? SKIP IF SO JMP I.ER04 /NO, TASK IS TOO LARGE - ERROR JMP I.RELM /YES IT WILL FIT, CARRY ON WITH OTHER THINGS / I.ALLD CAL I.ACPB /ALLOCATE THE DISK SPACE NEEDED CAL I.WAIT /WAIT UNTIL COMPLETION LAC I.EV /PICK UP THE EV .IFDEF TKNAM SAD (-777) /OUT OF POOL? JMP SCF999 /YES - STOP SYSTEM CONFIG .ENDC SPA /ALLOCATION OK? - SKIP IF SO JMP I.ER06 /NO - ERROR ISZ I.DSKA /YES, SHOW THAT WE HAVE ALLOCATED DISK SPACE LAC I.ALSZ+1 /MOVE THE ADDRESS INTO THE DAC I.PCPB /PUT CPB LAC I.ALSZ+2 DAC I.PCPB+1 LAC (I.BLOK-1) /CLEAR THE DISK I/O BLOCK DAC* (X10) /TO ZEROS LAW -400 DAC I.WRK DZM* X10 ISZ I.WRK JMP .-2 LAC I.ALSZ /NOW CLEAR ALL OF THE ALLOCATED DISK AREA TO DAC I.WRK /ZEROS CAL I.PUTC /PUT THE ZEROS OUT JMS I.WFEV /WAIT UNTIL DONE LAC I.PCPB+1 /UP THE ADDRESS CLL TAD (400 /TO THE NEXT BLOCK DAC I.PCPB+1 SZL /IF OVERFLOW ISZ I.PCPB /UP THE HIGH-ORDER WORD ALSO LAW -400 /COUNT DOWN TAD I.WRK /TO ZERO SMA!SZA /DONE? JMP .-14 /NO, KEEP ON / /THE DISK SPACE HAS BEEN ALOCATED, AND ALL OF IT IS ZEROED. NOW TO /BRING THE CODE IN. / LAC I.ALSZ /PICK UP THE SIZE OF THE ALLOCATION DAC I.BLOK /SET THIS IN AS WORD ZERO OF THE BLOCK / / EDIT #3 CHANGE / LAC I.PTNM /NAME DAC I.BLOK+1 LAC I.PTNM+1 DAC I.BLOK+2 LAC I.CORB /BASE DAC I.BLOK+3 / / END EDIT #3 CHANGE / LAC I.ALSZ+2 /SET UP THE DISK GET/PUT CONTROL TABLE DAC I.PCPB+1 /SO THE FIRST WRITE WILL SEND OUT LAC I.ALSZ+1 /THE BLOCK WITH THE ALLOCATION SIZE IN IT DAC I.PCPB XOR I.ALSZ+2 /SET THIS BLOCK (IN CORE) AS BEING THE DAC I.THIS /FIRST ONE ADD (400) /NOW UP TO THE BLOCKS TO BE USED DAC I.DSKB /SAVE AS BASE OF LINK ZERO DAC I.LBSE /SET THIS ALSO AS THE BASE FOR THE FIRST LINK LAW -1 /SHOW THAT CURRENT BLOCK HAS BEEN MODIFIED DAC I.WRIT /SO IT WILL BE WRITTEN OUT / /EXPAND THE LINK TABLE IF IT EXISTS / JMS I.EXPL /DO IT .IFUND TKNAM CAL CLOSE /CLOSE THE FILE .ENDC JMS SEEK /RE-SEEK THE FILE DZM I.LKNM /FIND LINK #0 JMS I.FLNK / I.LOOP JMS I.EXPL /EXPAND THIS LINK LAC I.MXDK /PICK UP THE MAXIMUM DISK BLOCK USED SZA JMP .+3 LAC I.THIS DAC I.MXDK ADD (400) /UP TO THE NEXT ONE DAC I.WRK /SAVE THIS AS THE BASE FOR THE NEXT LINK LAC INBUF+3 /LAST LINK? SAD (377777) /SKIP IF NOT JMP I.DEXP /YES, DONE EXPANDING THE TSK FILE JMS I.LKTB /NO, SET UP THE LINK TABLE FOR THE NEXT LINK JMP I.LOOP / AND GO FOR MORE / /SUBROUTINE TO READ THROUGH UNTIL A CERTAIN LINK IS FOUND / I.FLNK XX /LINK NUMBER IS IN I.LKNM JMS READ /READ A RECORD LAC INBUF+2 /IS THIS A TYPE ONE RECORD? AND (IOT) SAD (JMS) /SKIP IF NOT JMP I.OVRP /IT IS, IS IT THE ONE WE WANT? SNA /IT ISN'T - ERROR VIA TYPE 0 RECORD? JMP I.ER10 /YES, LEAVE JMP I.FLNK+1 /CYCLE ON FOR MORE I.OVRP LAC INBUF+3 /TYPE ONE RECORD FOUND, IS IT THE ONE WE WANT? SAD I.LKNM /SKIP IF NOT JMP* I.FLNK /IT IS, LEAVE ISZ I.ACNT /IT IS NOT, COUNT THE LINKS FOUND NOP /ANYWAY JMP I.FLNK+1 /AND GO FOR MORE / / /SUBROUTINE TO EXPAND A LINK. THE TYPE ONE RECORD HAS BEEN READ. UPON /EXIT, A TYPE ONE RECORD WILL BE IN 'INBUF'. / I.EXPL XX DZM I.MXDK /CLEAR OUT THE HIGHEST DISK ADDRESS USED / /I.LBSE SHOULD CONTAIN THE BASE DISK ADDRESS FOR THIS LINK /I.LCOR SHOULD CONTAIN THE BASE CORE ADDRESS THAT CORESPONDS TO I.LBSE / I.EXLP LAC (INBUF+2) DAC I.PNTR /SET UP FOR 'GETW' ROUTINE JMS READ /READ A RECORD LAC INBUF+2 /IS IT A TYPE TWO RECORD? AND (IOT) SAD (LAC) /SKIP IF NOT JMP I.TYP2 /IT IS, PROCESS IT SAD (ADD) /TYPE THREE? JMP I.TYP3 /YES, PROCESS IT SAD (JMS) /TYPE ONE? JMP* I.EXPL /YES, LEAVE LAC INBUF+2 /IS THIS THE EOF ON LINK EXPANSION? SZA /MAYBE JMP I.ER10 /NO, READ ERROR LAC I.LKNM /CHECK TO SEE IF THIS IS LINK 377777 SAD (377777) /SKIP IF NOT JMP* I.EXPL /IT IS, LEAVE JMP I.ER10 /IT ISN'T - READ ERROR I.TYP2 JMS I.GETW /PICK UP THE COUNT SAD (-1) /SKIP IF NOT THE END OF THE RECORD JMP I.EXLP /IT IS, GO FOR MORE RECORDS AND (077777) /SINGLE IT OUT TCA /NEGATE IT DAC I.ACNT /SAVE IT JMS I.GETW JMS I.GETA /PICK UP AN ADDRESS AND READ THAT BLOCK INTO CORE I.T2LP JMS I.GETW /PICK UP A WORD JMS I.PUTW /SET IT DOWN ISZ I.ACNT /SKIP WHEN DONE JMP I.T2LP /UNTIL THEN JMP I.TYP2 /GO UNTIL DONE / /SUBROUTINE TO PICK UP ONE WORD FROM THE BUFFER / I.GETW XX LAC* I.PNTR /PICK IT UP ISZ I.PNTR /INCREMENT IT JMP* I.GETW /AND LEAVE / /SUBROUTINE TO PUT ONE WORD INTO THE DISK BLOCK /(A CALL TO I.GETA SHOULD BE DONE FIRST TO SET UP THE PARAMETERS) / I.PUTW XX DAC* I.DPNT /SET IT IN LAW -1 /SHOW THAT THE BLOCK DAC I.WRIT /HAS BEEN MODIFIED ISZ I.DPNT /INCREMENT THE POINTER ISZ I.BCNT /SEE IF THE END OF THE BLOCK HAS BEEN REACHED JMP* I.PUTW /IT HASN'T, LEAVE LAC I.THIS /GO TO THE NEXT BLOCK ADD (400) /FOR THE CONTINUATION OF THIS ESCAPADE JMS I.XDSK /PICK UP THE BLOCK LAC (I.BLOK) /AND RESET THE DAC I.DPNT /POINTERS LAW -400 /TO THE DISK DAC I.BCNT /BLOCK JMP* I.PUTW /LEAVE / /SUBROUTINE TO SEE THAT THE DISK BLOCK THAT WILL CONTAIN A CERTAIN ADDRESS /IS IN CORE, AND TO SET UP POINTERS FOR I.PUTW /CALL WITH THE DESIRED CORE ADDRESS IN THE AC - IT WON'T BE THERE ON RETURN / I.GETA XX AND (77777) TCA /NEGATE TAD I.LCOR /ADD IN THE BASE TCA /POP BACK TO POSITIVE DAC I.DPNT /SAVE AND (-400) /FIND OUT WHICH RELATIVE BLOCK ADD I.LBSE /FIND OUT WHICH ACTUAL BLOCK JMS I.XDSK /BRING THAT ONE INTO CORE LAC (377) /NOW WE PICK UP AND I.DPNT /THE OFFSET INTO THE DISK BLOCK AAC -400 /CREAT THE NUMBER OF WORDS LEFT IN THE BLOCK DAC I.BCNT /SAVE THIS AS A COUNTER FOR I.PUTW TAD (I.BLOK+400) /UP TO THE CORE ADDRESS IN REAL CORE DAC I.DPNT /WHERE THE WORD IS JMP* I.GETA /LEAVE / /SUBROUTINE TO MAKE CERTAIN THAT THE CORRECT BLOCK IS IN CORE. THE /ONE CURRENTLY IN CORE IS WRITTEN OUT, IF IT HAS BEEN MODIFIED (I.WRIT=-1) / I.XDSK XX /ENTRY DAC I.BCNT /SAVE THIS XOR I.THIS /IS THE BLOCK THE ONE THAT IS IN CORE? SNA /SKIP IF NOT JMP* I.XDSK /IT IS, LEAVE XOR I.THIS /RESORE THE ORIGINAL AC CONTENTS LMQ /FIND OUT IF THE BLOCK JUST ABOUT TO BE READ IN LLS 12 /IS HIGHER NUMBERED THAN THE ONE SHOWN IN I.MXDK DAC I.GETW /SAVE THIS LAC I.MXDK /PICK UP THE CURRENT MAXIMUM LMQ LLS 12 /CREATE A PROPER COMPARISON NUMBER TCA /NEGATE TAD I.GETW /ADD IN THE ONE WE ARE ABOUT TO GET RAL /SAVE THE SIGN LAC I.BCNT /PICK UP THE ONE WE WANT SNL /SKIP IF IT IS LOWER DAC I.MXDK /IF HIGHER OR EQUAL, RESET I.MXDK ISZ I.WRIT /HAS THE CURRENT RECORD BEEN MODIFIED? JMP .+3 /NO, SO JUST READ THE NEW ONE IN CAL I.PUTC /PUT OUT THE CURRENT BLOCK JMS I.WFEV /WAIT UNTIL DONE DZM I.WRIT /CLEAR THE 'THE BLOCK HAS BEEN MODIFIED' FLAG LAW 777400 /PICK UP THE AND I.BCNT /BLOCK NUMBER DAC I.PCPB+1 /AND SET IT IN THE DISK CONTROL TABLE XOR I.BCNT /PICK UP THE UNIT NUMBER DAC I.PCPB /AND SET IT IN ALSO XOR I.PCPB+1 /NOW SET THE CURRENT BLOCK POINTER DAC I.THIS /TO POINT TO WHERE WE ARE NOW CAL I.GETC /GET THE NEW BLOCK JMS I.WFEV /WAIT JMP* I.XDSK /AND LEAVE / / I.TYP3 XOR INBUF+2 /PICK UP THE TOTAL NUMBER OF PATCHES SPA!SNA /SKIP IF THERE ARE ANY JMP I.EXLP /NO, LOOK FOR SOMETHING ELSE TO DO DAC I.TOTP /SAVE THIS I.T3LP ISZ I.PNTR /FIND OUT HOW MANY JMS I.GETW /PATCHES ON THIS RECORD SPA!SNA!TCA /SKIP IF THERE ARE ANY JMP I.EXLP /NO, CARRY ON WITH THE NEXT RECORD DAC I.CCNT /YES, SAVE THE COUNT TAD I.TOTP /AND SUBTRACT THIS FROM THE TOTAL DAC I.TOTP I.T3LQ LAC* I.PNTR /PICK UP THE ADDRESS AND (077777) /WHERE THE PATCH GOES JMS I.GETA /MAKE SURE THAT IT IS IN CORE JMS I.GETW /FIND OUT WHAT THE FUNCTION IS AND (IOT) SAD (JMS) /IS IT ADDRESS FIELD MODIFICATION? JMP I.T3AD /YES, DO IT SAD (LAC) /IS IT BLANK COMMON OFFSET? JMP I.T3CO /YES SZA /IS IT SIMPLE REPLACEMENT? JMP I.ER10 /NO, MUST BE A READ ERROR JMS I.GETW /PICK UP THE WORD I.T3BK DAC* I.DPNT /SET IT IN THE DISK BLOCK LAW -1 /SET THE 'MODIFIED BLOCK' FLAG DAC I.WRIT /TO SHOW THAT WE CHANGED THE BLOCK ISZ I.CCNT /COUNT THE PATCHES JMP I.T3LQ /NOT YET DONE, GO FOR MORE LAC I.TOTP /ARE WE COMPLETELY DONE? SPA!SNA /SKIP IF NOT JMP I.EXLP /YES, READ A TYPE ONE RECORD JMS READ /NO, RESET FOR THE NEXT PATCH RECORD LAC (INBUF+2) DAC I.PNTR /SET UP FOR 'GETW' LAC INBUF+2 /MAKE CERTAIN THAT THIS IS AND (IOT) /A TYPE THREE RECORD SAD (ADD) /SKIP IF NOT JMP I.T3LP /IT IS, FINISH UP JMP I.EXLP+3 /IT ISN'T, WHAT HAPPENED??? I.T3AD LAC I.ENTR /PICK UP THE TASK ENTRY POINT RAL /BANK/PAGE BIT TO AC0 SMA!CLA LAC (010000) /PAGE MODE, MUST KEEP THE INDEX BIT XOR (760000) /CREATE A MASK PAL /SAVE THIS AND* I.DPNT /PICK UP THE INSTRUCTION FIELD ONLY LMQ /SAVE THIS PLA /BRING THE MASK BACK CMA /FLIP IT OVER AND* I.PNTR /BRING IN THE NEW ADDRESS FIELD OMQ /AND BRING THE INSTRUCTION OUT ISZ I.PNTR /UP THE POINTER JMP I.T3BK /AND PUT THIS AWAY I.T3CO JMS I.GETW /PICK UP THE WORD TAD I.BCBS /ADD IN THE BASE OF BLANK COMMON JMP I.T3BK /AND PUT THE WORD AWAY / / /SUBROUTINE TO SET UP THE LINK TABLE FOR THE LINK ABOUT TO BE PROCESSED / I.LKTB XX LAC I.CORB /SET UP TO ACCESS ON LINK 0 LEVEL DAC I.LCOR /AS THIS IS LINK TABLE MODIFICATION LAC I.DSKB DAC I.LBSE LAC I.LTBS /PICK UP THE BASE ADDRESS OF THE LINK TABLE IAC /PLUS ONE I.LKLP DAC I.PNTR /SAVE THIS JMS I.GETA /BRING THIS INTO CORE LAC* I.DPNT /IS THIS THE END OF THE LINK TABLE? SAD I.LTBS /SKIP IF NOT JMP I.LKUP /IT IS, SET UP FOR THE NEXT LINK LAC I.PNTR /PICK UP THE AAC 7 /LINK NUMBER WORD JMS I.GETA / LAC* I.DPNT /IS THIS THE LINK WE ARE WORKING ON NOW? SAD INBUF+3 /SKIP IF NOT JMP I.LKBS /IT IS, SET UP THE DISK ADDRESS ON THIS ONE I.LKMR LAC I.PNTR /IT ISN'T, UP TO THE NEXT ONE AAC 13 /IN THE TABLE JMP I.LKLP / /NOTE: EARLIER VERSIONS USED THE MINIMUM ADDRESS WORD TO FLAG THE LINKS /THAT HAD BEEN UPDATED. HOWEVER, WITH THE LOW END OF THE DISK ALLOCATED /TO THE SYSTEM IMAGE, IT IS VERY UNLIKELY THAT THE LINK NUMBERS WILL /REACH THE SAME MAGNITUDE AS THE DISK ADDRESS THAT REPLACES IT. /THEREFORE, THE SAD SHOULD BE ENOUGH. / I.LKBS LAC I.WRK /SET THE BASE ADDRESS OF THIS LINK JMS I.PUTW /IN THE LINK TABLE LAC* I.DPNT /AND SET THE MINIMUM ADDRESS OF THE LINK DAC I.TMP /IN A SAFE PLACE FOR SETTIN I.LCOR WHEN DONE JMP I.LKMR /NOW LOOK AT THE NEXT LINK / I.LKUP LAC I.TMP /SET THE CORE BASE ADDRESS FOR THIS LINK DAC I.LCOR /IN FOR DISK ADDRESS ADJUSTING LAC I.WRK /SET THE DISK BASE ADDRESS CORRESPONDING TO DAC I.LBSE /I.LCOR IN ALSO JMP* I.LKTB /AND LEAVE / / /THE WHOLE THING IS DONE, NOW TO MAKE THE STL ENTRY FOR THIS TASK /AND LEAVE THIS BLOODY MESS. / I.DEXP=. .IFUND TKNAM CAL CLOSE /CLOSE THE FILE CAL DETACH /AND DETACH THE DEVICE CAL I.WAIT .ENDC ISZ I.WRIT /DOES THE DISK BLOCK NEED RE-WRITING? JMP I.DOVR /NO, GO CLEAN UP CAL I.PUTC /YES, WRITE IT OUT JMS I.WFEV /AND WAIT FOR IT I.DOVR=. .TITLE SAVE-REMOVE-INSTALL BLOCK CHAIN UPDATE / / (THE CODE FOUND BETWEEN THE "*****" WAS ENTERED BY MJH 4/6/76 EDIT #13 / AND SCR EDIT #23) / ********************* / / / THE FOLLOWING CODE IS USED TO UPDATE THE INSTALL/REMOVE / CHAIN OF BLOCKS IN ORDER TO FIX THE SAVE-REMOVE-INSTALL / GLITCH. THE IDEA IS THAT EACH TIME THE STL IN CORE IS CHANGED, / THIS CHAIN OF DISK BLOCKS MUST ALSO CHANGE. WHENEVER A TASK IS / REMOVED, THE TASKS NAME IS ENTERED INTO THE CHAIN. WHENEVER A / TASK IS INSTALLED, A COPY OF ITS STL NODE (LESS POINTERS) IS / ENTERED INTO THE CHAIN ALONG WITH THE TASKS PBDL DATA. / WHEN THE SYSTEM IS BOOTSTAPPED THE COPY OF SAVE WHICH IS / IN CORE READS THE CHAIN OF BLOCKS AND RECONSTRUCTS THE / STL FROM THE DATA FOUND IN THE BLOCKS. / WHENEVER A SAVE IS DONE (STL IN CORE MATCHES STL ON DISK) / THIS CHAIN OF BLOCKS IS PURGED. / / THE STRUCTURE OF EACH BLOCK IS: / / WORDS 0-375 USED FOR DATA ENTRIES / WORD 376 IS A POINTER TO 1ST FREE WORD IN BLOCK / WORD 377 IS A POINTER TO NEXT BLOCK OR -1 / / THE STRUCTURE OF A REMOVE ENTRY IS: / / NTRY+0 -1 (FLAG SAYING THIS ENTRY IS A REMOVE) / NTRY+1 TASK NAME IN SIXBT 1ST HALF / NTRY+2 TASK NAME IN SIXBT 2ND HALF / / THE STRUCTURE OF AN INSTALL ENTRY IS: / / NTRY+0 +1 (FLAG SAYING THIS ENTRY IS AN INSTALL) / NTRY+1 TASK NAME IN SIXBT 1ST HALF / NTRY+2 TASK NAME IN SIXBT 2ND HALF / NTRY+3 STL NODE WORD 4 / NTRY+4 STL NODE WORD 5 / NTRY+5 STL NODE WORD 6 / NTRY+6 STL NODE WORD 7 / NTRY+7 STL NODE WORD 10 / NTRY+10 STL NODE WORD 11 / NTRY+11 PARTITION NAME IN SIXBT 1ST HALF / NTRY+12 PARTITION NAME IN SIXBT 2ND HALF / NTRY+13 PARTITION BASE ADDRESS / / NOTE THAT IT IS EXTREMELY IMPORTANT TO FILL UP DATA / ENTRIES IN THE REMOVE CHAIN IN THE ORDER THAT EACH / STL MODIFICATION WAS MADE. / / NOTE ALSO THAT ALL TASKS WHICH ACCESS THIS CHAIN OF / BLOCKS MUST RESIDE IN THE SAME PARTITION. / THOSE TASKS ARE: SAVE,TDV REM, MCR REM, TDV INS, MCR INS, / FININS, AND AUTORM. / .EJECT / / START TO PROCESS THE REMOVE CHAIN OF BLOCKS / INSSZ=14 /SIZE OF AN INSTALL ENTRY REMSZ=2 /SIZE OF A REMOVE ENTRY BEGIN DZM REMFLG /NOT AT END, ZERO FLAG LAC* (REMBLK /GET THE 1ST BLOCK IN THE CHAIN SKP /JOIN UP TO PLACE BLOCK / / READ IN A BLOCK IN THE CHAIN / REM0 LAC I.BLOK+377 /GET NEXT BLOCK DAC CURBLK /SAVE CURRENT BLOCK NUMBER JMS CONVRT /CONVERT TO PLATTER AND ADDR CAL I.GETC /READ BLOCK CAL I.WAIT LAC I.EV /ANY ERRORS ON READ? SPA JMP I.ER11 /YES -- /NO -- / REM1 LAC REMFLG /NOP UNLESS LAST BLOCK, SMA /LAST, FORCE -1 LAC I.BLOK+376 /DATA, LAST BLOCK MISSES THIS SMA /SKIP IF LAST BLOCK JMP REM0 /NO, FETCH ANOTHER AAC 377-INSSZ /CAN INSTALL ENTRY FIT SPA /SKIP IF YES JMP GETSOM /NO, ANOTHER BLOCK NEEDED AAC -377 /UPDATE POINTER DAC I.BLOK+376 CMA /SET UP X10 TO PLACE DATA TAD (I.BLOK-1-INSSZ /(025)SETUP X10 TO POINT AT NTRY-1 DAC* (X10 /SAVE BLOCK ENTRY POINTER CLA!IAC /SET UP FLAG WORD ENTRY DAC* X10 /IF FLAG IS +1 THIS IS AN INSTALL NTRY LAC (I.TSKN-1 /PREPARE TO ENTER STL DATA DAC* (X11 /USER X11 AS A POINTER TO STL DATA LAW -10 /TRANSFER WORDS 2-11 OF STL NODE DAC I.TMP /INTO BLOCK NTRY LAC* X11 DAC* X10 ISZ I.TMP JMP .-3 LAC I.PBAD /PREPARE TO ENTER PBDL DATA JMS SETXR LAC P.N1,X /GET PART NAME DAC* X10 LAC P.N2,X DAC* X10 LAC P.BS,X /GET BASE DAC* X10 / / UPDATE THE BLOCK DATA ITEM POINTER, WRITE OUT BLOCK, AND QUIT / JMS PUTBLK /WRITE OUT THE DISK BLOCK JMP REMNOD /ALL DONE WITH THIS PHASE / / PREPARE TO GET NEXT BLOCK IN CHAIN OR ALLOCATE A NEW BLOCK / GETSOM LAC I.BLOK+376 /NO LONGER EOF, MAKE IT + CMA DAC I.BLOK+376 / LAW -1 /SET REMFLG TO SHOW END DAC REMFLG SAD I.BLOK+377 /ANOTHER BLOCK ALREADY IN CHAIN JMP ALLBLK /(027) GO TO ALLOCATE A NEW BLOCK JMS PUTBLK /(027) OLD BLOCK OUT WITH + POINTER JMP REM0 /NO -- PREPARE TO READ IN ANOTHER /YES -- / / ALLOCATE A NEW BLOCK FOR THE REM CHAIN / ALLBLK LAC (ALLCTA /ENTER SAV-REM-INS ALLOCATE CTA DAC I.ACPB+3 /INTO ALLOCATE CPB CAL I.ACPB /ALLOCATE A BLOCK CAL I.WAIT LAC I.EV /ANY ERRORS? SPA JMP I.ER06 /YES LAC ALLCTA+2 /NO -- GET THE BLK NUMBER LMQ /CONVERT PLATTER AND ADDR LAC ALLCTA+1 /TO A DISK BLOCK NUMBER AND (7777 LRSS 10 LACQ DAC NEWBLK /SAVE THE BLK NUMBER / / CAN WE WRITE ON THE NEW BLOCK, TRY IT. IF FAILS, / THE PREVIOUS BLOCK DOESN'T POINT AT IT. / JMS CONVRT /CHANGE TO PLATTER AND ADDR JMS PUTBLK /WRITE OUT THE NEW BLOCK / / OK, SO WRITE OUT THE CURRENT DISK BLOCK / LAC CURBLK /GET CURRENT BLOCK NUMBER JMS CONVRT /PREPARE TO WRITE IT OUT LAC NEWBLK /SET UP BLK FORWARD PTR DAC I.BLOK+377 JMS PUTBLK /WRITE OUT THE OLD BLOCK / / INIT THE NEW DATA BLOCK BUFFER / LAC NEWBLK /SET NEWLY ALLO'D BLK TO CURRENT BLK DAC CURBLK JMS CONVRT /PREP TO WRITE OUT THIS BLOCK LAW -1 /NO BLOCK POINTER ON NEW BLOCK DAC I.BLOK+377 JMP REM1 /GO PROCESS ZEROD BLK / REMFLG 0 /0 UNTIL LAST FOUND, THEN -1 REMNOD=. / ******************** .EJECT JMS* (PENP) /PICK AN EMPTY BEER CAN FROM THE POOL JMP I.ER05 /AND SHOW AN ERROR IF NO LITTER IS AROUND DAC* (R2) /OTHERWISE, IF ONE IS FOUND, MAKE IT LOOK RESPECTABLE IAC /BY CLEVERLY DISGUISING IS AS AN STL NODE FOR DAC* (X11) /THIS NEW TASK IN THE SYSTEM LAC I.XM /(MJH-11) SET XVM MODE BITS INTO STL NODE XOR I.MXTR /(MJH-11) DAC I.MXTR /(MJH-11) .IFUND TKNAM LAC (I.TSKN-1) /SET THE DAC* (X10) /TASK INFO IN THE LAW -10 /STL NODE .ENDC .IFDEF TKNAM LAC TKNAM DAC* X11 LAC TKNAM+1 DAC* X11 LAC (I.DFPR-1) DAC* (X10) LAW -6 .ENDC DAC I.ACNT /BY MOVING IT FROM THE NEAT BLOCK IT IS IN LAC* X10 /FRESHLY PICKED DAC* X11 /NODE ISZ I.ACNT JMP .-3 / LAC (STKL) /NOW ADD THIS TO DAC* (R1) /THE STL (R2 IS SET FROM ABOVE) (THANK GOD) JMS* (NADD) .IFPNZ -1 /DON'T ASSEMBLE THIS CODE / /AT THIS POINT, WE ARE DONE. NOW IT IS POSSIBLE THAT WE HAVE OVER-ALLOCATED /THE DISK. A CHECK IS MADE TO SEE IF THE ENTIRE ALLOCATION WAS USED. /IF NOT, THE UNUSED PART IS GIVEN BACK. / LAC I.ALSZ /PICK UP THE SIZE OF THE ALLOCATION CLL /MAKE CERTAIN THAT THE LINK IS CLEAR LRS 10 /SHIFT OVER TO BLOCK COUNT DAC I.BCNT /SAVE THIS LAC I.ALSZ+2 /PICK UP THE WORD ADDRESS LMQ LAC I.ALSZ /NOW THE 'UNIT' NUMBER LLS 12 /NOW AC=FIRST 'BLOCK' NUMBER OF ALLOCATION TAD I.BCNT /NOW AC=FIRST BLOCK AFTER ALLOCATION DAC I.BCNT /SAVE LAC I.WRK /PICK UP THE FIRST UNUSED BLOCK NUMBER IN PACKED LMQ /FORM AND UNPACK IT LLS 12 /DONE TCA /NEGATE IT TAD I.BCNT /SUBTRACT IT FROM THE FIRST UNALLOCATED BLOCK SPA!SNA /SKIP IF ANY ARE LEFT OVER JMP I.DDED /NO, LEAVE ALSS 10 /YES - NOW BACK TO WORD FORMAT DAC I.ALSZ /SAVE THIS AS THE SIZE TO DE-ALLOCATE LAW -400 AND I.WRK /PICK UP THE LOW ORDER 'WORD' ADDRESS DAC I.ALSZ+2 /OF THE FIRRST UNUSED BLOCK XOR I.WRK /PICK UP THE 'UNIT' NUMBER DAC I.ALSZ+1 /SET IT IN FOR DE-ALLOC. CAL I.DCPB /DE-ALLOCATE THE SPACE CAL I.WAIT /WAIT UNTIL DONE I.DDED=. /***** /AT THIS POINT THE ALLOCATION PARAMETER IN BLOCK 0-1 OF THE TASK SHOULD /ALSO BE CHANGED .ENDC /END OF NON-ASSEMBLY / .IFDEF TKNAM JMP* INSTAL /DONE, LEAVE IF SCF SUBROUTINE .ENDC .IFUND TKNAM CAL DETACH /DETACH DEVICE ON LUN 5 CAL I.WAIT JMS* (FAC) /PICK UP THE TERMINATING CHARACTER AGAIN SAD (015) /CR TERMINATED COMMAND STRING? LEAVE CAL REQMCR /YES, REQUEST THE MCR ROUTINE DZM* (MCRRI) /CLEAR THE ^C INHIBIT CAL (10) /AND EXIT / REQMCR 1 /CPB TO REQUEST '...MCR' KEYBOARD LISTENER 0 /NO EV .SIXBT '...MCR' 0 /DEFAULT PRIORITY / / /SEEK SUBORUTINE / SEEK XX LAC I.TSKN /PICK UP THE DAC DTSEEK+3 LAC I.TSKN+1 DAC DTSEEK+4 /TASK NAME AND PUT IT IN THE CPB CAL DTSEEK /SEEK THE FILE CAL I.WAIT /WAIT FOR THE EV LAC I.EV /WAS THIS ALL OK? SMA /SKIP IF NOT JMP* SEEK SAD (-6) /ONLY THAT THE FUNCTION IS NOT HONOURED? JMP* SEEK /YES I.ER13 LAC (I.ME13) /NO, FILE NOT FOUND JMP I.ERRR /SHOW IT / /READ SUBROUTINE / READ XX CAL DTREAD /READ A LINE CAL I.WAIT /WAIT FOR IT LAC I.EV /WHAT DOES THE ALL-KNOWING EV HAVE TO SAY? SPA /SKIP IF IT SAYS ALL OK JMP I.ER10 /JUMP FOR ERROR IF NOT LAC INBUF /SO FAR SO GOOD - NOW WHAT DOES THE HEADER SAY? AND (77) /SINGLE OUT THE GOODIE BITS SNA /UH-OH - WE ARE SKIPPING IF SOME BITS ARE ON JMP* READ /NO SKIP - ALL OK ALS 14 /BRING THE CHECKSUM BIT TO AC0 SPA!RAL /SKIP IF NOT CHECKSUM JMP I.ER07 /IT IS A CHECKSUM ERROR SPA /SKIP IF NOT PARITY ERROR JMP I.ER08 /PARITY ERROR, SHOW IT DZM INBUF+2 /CLEAR THE RECORD TYPE, JUST IN CASE LAC INBUF SAD (1005) /EOF? JMP* READ /YES, QUIT SAD (1006) /EOM? JMP* READ /YES, FORGET IT I.ER10 LAC (I.ME10) /DECTAPE ERROR - (EOF OR EOM?) SAY SOMETHING JMP I.ERRR .EJECT / / SUBROUTINE SETXR -- SETUP XRADJUSTMENT / SETXR 0 /(MJH-12) TAD XRADJ /(MJH-12) PAX /(MJH-12) JMP* SETXR /(MJH-12) / / SUBROUTINE CONVRT -- CHANGE BLK NUMBER IN AC TO PLAT AND ADDR / CONVRT 0 /(MJH-12) LMQ /(MJH-12) LLSS!ECLA 10 /(MJH-12) DAC I.PCPB /(MJH-12) LACQ /(MJH-12) DAC I.PCPB+1 /(MJH-12) JMP* CONVRT /(MJH-12) / / SUBROUTINE PUTBLK -- WRITE OUT A DISK BLOCK / PUTBLK 0 /(MJH-12) CAL I.PUTC /(MJH-12) JMS I.WFEV /(MJH-12) JMP* PUTBLK /(MJH-12) .EJECT / /CPBS FOR MCR FUNCTION / ATTACH 2400 /ATTACH LUN 5 I.EV /FOR INPUT 5 / DTSEEK 3200 /SEEK THE FILE I.EV 5 .SIXBT '@@@@@@TSK' / DTREAD 2600 /READ A LINE I.EV 5 0 /IN IOPS BINARY INBUF 42 / CLOSE 3400 /CLOSE THE FILE 0 5 / DETACH 2500 /DETACH LUN 5 I.EV 5 / TTMESG 2700 /WRITE AN ERROR MESSAGE TO THE MCR OPERATOR I.EV 3 2 TTMESA XX 42 / I.ERRR DAC TTMESA CAL TTMESG /WRITE THE MESSAGE CAL I.WAIT /WAIT FOR THE EV LAC I.EV /PICK IT UP SMA /SKIP IF ERROR JMP ERRXIT /DE-ALLOCATE THE DISK SPACE AND LEAVE SAD (-777) /OUT OF POOL? JMP .-5 /YES, TRY UNTIL WE CAN DO IT ERRXIT LAC I.DSKA /HAS DISK SPACE BEEN ALLOCATED? SNA /SKIP IF SO JMP .+3 /OVER IF NOT CAL I.DCPB /DEALLOCATE IT IF SO CAL I.WAIT CAL DETACH /DETACH LUN 5 - IT CAN'T HURT (CAN IT?) CAL I.WAIT JMP LEAVE /REQUEST THE MCR LISTENER AND LEAVE / .ENDC .IFDEF TKNAM I.ERRR DAC I.ERRA /SET THE ADDRESS OF THE MESSAGE TO PRINT JMS* (TYPE) /START PRINTING MES900 /THEE ERROR LAC (SCFIB+1) /NOW TO CREATE THE TASK NAME IN DAC* (X10) /IMAGE MODE LAC TKNAM JMS EREXS1 /FIRST THREE LAC TKNAM+1 JMS EREXS1 /LAST THREE CAL SCFTIB /WRITE IT OUT CAL WFCPB /WAIT JMS* (TYPE) /NOW FINISH THE 'TASK XXXXXX NOT INSTALLED' MES901 JMS* (TYPE) /PUT OUT THE REASON I.ERRA XX LAC I.DSKA /DISK SPACE ALLOCATED? SNA /SKIP IF SO JMP .+3 /OVER IF NOT CAL I.DCPB /DEALLOCATE IT IF SO CAL I.WAIT JMP* INSTAL /AND LEAVE / EREXS1 XX LMQ JMS EREXS2 JMS EREXS2 JMS EREXS2 JMP* EREXS1 / EREXS2 XX LLS 6 AND (77) SNA AAC 177 XOR (40) TAD (40) DAC* X10 JMP* EREXS2 / .DEFIN ABUF,TEXT,?B B-./2*1000+2 ; 0 .ASCII \@TEXT@\<15> B=. .ENDM .ENDC / .IFUND TKNAM .DEFIN ABUF,TEXT,?B B-./2*1000+2 ; 0 .ASCII \ @TEXT@\<15> B=. .ENDM .ENDC I.ER02 LAC (I.ME02) JMP I.ERRR I.ER03 LAC (I.ME03) JMP I.ERRR /ERROR ROUTINES - PICK UP THE MESSAGE ADDRESS I.ER04 LAC (I.ME04) /AND GO OFF TO DO THE WORK JMP I.ERRR I.ER05 LAC (I.ME05) JMP I.ERRR I.ER06 LAC (I.ME06) JMP I.ERRR I.ER07 LAC (I.ME07) JMP I.ERRR I.ER08 LAC (I.ME08) JMP I.ERRR I.ER09 LAC (I.ME09) JMP I.ERRR .IFDEF TKNAM I.ER10 LAC (I.ME10) JMP I.ERRR .ENDC I.ER12 LAC (I.ME12) JMP I.ERRR I.ER14 LAC (I.ME14) JMP I.ERRR I.ER15 LAC (I.ME15) JMP I.ERRR / /ERROR MESSAGES: / I.ME01 ABUF <SYNTAX ERROR> I.ME02 ABUF <TASK ALREADY IN SYSTEM> I.ME03 ABUF <PARTITION NOT IN SYSTEM> I.ME04 ABUF <TASK WOULD OVERFLOW PARTITION> I.ME05 ABUF <OUT OF POOL> I.ME06 ABUF <OUT OF DISK> I.ME07 ABUF <INPUT CHECKSUM ERR> I.ME08 ABUF <INPUT PAR ERR> I.ME09 ABUF <SYS COM BLK ERR> I.ME10 ABUF <READ ERR ON LUN 5> I.ME11 ABUF <DISK ERR> I.ME12 ABUF <NO DEFAULT PRIORITY> I.ME13 ABUF <FILE NOT FOUND ON LUN 5> I.ME14 ABUF <RELOCATION HARDWARE NOT AVA> I.ME15 ABUF <FLOATING POINT UNIT NOT AVA> / /SUBROUTINE TO WAIT FOR I.EV AND ANNOUNCE A DISK ERROR IF NEGATIVE WHEN /COMPLETE. / I.WFEV XX CAL I.WAIT /WAIT LAC I.EV SMA /ERRORS? JMP* I.WFEV /NO, LEAVE I.ER11 LAC (I.ME11) /DISK ERROR JMP I.ERRR /ANNOUNCE IT AND CLEAN UP / / /VARIABLES, CONSTANTS, AND CPBS WITH BUFFERS AS A SIDELINE / I.XM 0 /(MJH-11) XVM MODE BITS CURBLK 0 /CURRENT BLK IN REM-INS-SAV CHAIN (MJH-12) NEWBLK 0 /NEWLY ALLO'D BLK FOR CHAIN (MJH-12) OLDPTR 0 /OLD BLKS FREE WD PTR (MJH-12) XRADJ 0 /XR ADJUSTMENT FACTOR (MJH-12) I.ACNT 0 /SCRATCH LOCATIONS I.TMP 0 I.BCNT 0 I.CCNT 0 I.WRK 0 I.DPNT 0 /POINTER USED PRIMARILY BY I.PUTW I.MXDK 0 /MAXIMUM DISK BLOCK USED BY THE CURRENT LINK I.THIS 0 /DISK ADDRESS OF CURRENT BLOCK IN CORE I.WRIT 0 /-1 WHEN CURRENT BLOCK HAS BEEN MODIFIED, 0 IF NOT I.DSKA 0 /INDICATOR THAT THE DISK AREA HAS BEEN ALLOCATED (0 IF NOT) I.LBSE 0 /DISK BASE ADDRESS FOR CURRENT LINK I.LCOR 0 /CORE ADDRESS CORRESPONDING TO I.LBSE I.LKNM 0 /NUMBER OF LINK BEING SOUGHT BY I.FLNK I.PTNM 0 ; 0 /PARTITION NAME I.TOTP 0 /COUNTER FOR PATCH RECORDS I.LTBS 0 /LINK TABLE BASE ADDRESS /THE FOLLOWING ARE NEEDED FOR STL NODE BUILDING: .IFUND TKNAM I.TSKN 0 ; 0 /NAME OF TASK .ENDC I.DFPR 0 /PRIORITY OF TASK I.PBAD 0 /PARTITION DESCRIPTOR BLOCK ADDRESS I.DSKB 0 /DISK BASE ADDRESS I.RISZ 0 /RESIDENT IMAGE SIZE I.MXTR 0 /MAXIMUM TASK REGISTER (CHANGED TO SIZE FOR STL NODE) I.ENTR 0 /TASK ENTRY PC (WITH BANK/PAGE AND EXEC/NORM MODE BITS) / I.BCBS 0 /BASE OF BLANK COMMON FOR PATCHING I.PNTR 0 /POINTER USED BY I.GETW I.CORB 0 /CORE BASE ADDRESS (CORRESPONDING TO I.DSKB) / I.WAIT 20 /CPB FOR WAITING I.EV /FOR THE EV / I.EV 0 /GENERAL PURPOSE EV / I.ACPB 1500 /ALLOCATE DISK SPACE CPB I.EV 1 /ALLOCATE ON DISK - LUN 1 I.ALSZ /ADDRESS OF ALLOCATE/DEALLOCATE DISK CONTROL TABLE / I.DCPB 1600 /DEALOCATE DISK SPACE CPB (IN CASE OF ERRORS) I.EV 1 I.ALSZ /OTHERWISE, SAME AS I.ACPB / I.ALSZ 0 /ALLOCATE/DEALLOCATE CONTROL TABLE 0 ; 0 / ALLCTA 400 /ALLO/DEAL CT FOR SAV-REM-INS CHAIN (MJH-12) XX /(MJH-12) XX /(MJH-12) / / I.GETC 3000 /GET (DISK) CPB I.EV 1 I.PCPB /GET/PUT CONTROL TABLE / I.PUTC 3100 /PUT (DISK) CPB I.EV 1 I.PCPB /SAME AS I.GETC / I.PCPB 0 /GET/PUT CONTROL TABLE 0 /DISK ADDRESS IS PUT HERE I.BLOK /ALL I/O TO/FROM DISK IS DONE THROUGH THE I.BLOK BUFFER 400 /AND IS EXACTLY ONE BLOCK LONG / / INBUF .BLOCK 42 /INPUT BUFFER .IFDEF TKNAM TCX 0 SAD (015) /SUBROUTINE TO SKIP IF AC DOES NOT JMP* TCX /CONTAIN A TERMINATOR SAD (175) JMP* TCX ISZ TCX JMP* TCX ERR10=I.ER10 /TO ALLOW LABEL REFERENCING .ENDC .END INSTAL .ENDC