Reorganized files to separate Luminary099 source code from Comanche055 source code
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Clifford Richardson
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Comanche055/RESTARTS_ROUTINE.s
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Comanche055/RESTARTS_ROUTINE.s
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# Copyright: Public domain.
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# Filename: RESTARTS_ROUTINE.agc
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# Purpose: Part of the source code for Comanche, build 055. It
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# is part of the source code for the Command Module's
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# (CM) Apollo Guidance Computer (AGC), Apollo 11.
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# Assembler: yaYUL
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# Reference: pp. 1414-1419
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# Contact: Ron Burkey <info@sandroid.org>
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# Website: http://www.ibiblio.org/apollo.
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# Mod history: 2009-05-07 RSB Adapted from Colossus249 file of the same
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# name, and page images. Corrected various
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# typos in the transcription of program
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# comments, and these should be back-ported
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# to Colossus249.
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#
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# The contents of the "Comanche055" files, in general, are transcribed
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# from scanned documents.
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#
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# Assemble revision 055 of AGC program Comanche by NASA
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# 2021113-051. April 1, 1969.
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#
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# This AGC program shall also be referred to as Colossus 2A
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#
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# Prepared by
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# Massachussets Institute of Technology
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# 75 Cambridge Parkway
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# Cambridge, Massachusetts
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#
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# under NASA contract NAS 9-4065.
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#
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# Refer directly to the online document mentioned above for further
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# information. Please report any errors to info@sandroid.org.
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# Page 1414
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BANK 01
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SETLOC RESTART
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BANK
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EBANK= PHSNAME1 # GOPROG MUST SWITCH TO THIS EBANK
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COUNT 01/RSROU
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RESTARTS CA MPAC +5 # GET GROUP NUMBER -1
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DOUBLE # SAVE FOR INDEXING
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TS TEMP2G
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CA PHS2CADR # SET UP EXIT IN CASE IT IS AN EVEN
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TS TEMPSWCH # TABLE PHASE
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CA RTRNCADR # TO SAVE TIME ASSUME IT WILL GET NEXT
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TS GOLOC +2 # GROUP AFTER THIS
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CA TEMPPHS
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MASK OCT1400
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CCS A # IS IT A VARIABLE OR TABLE RESTART
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TCF ITSAVAR # IT'S A VARIABLE RESTART
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GETPART2 CCS TEMPPHS # IS IT AN X.1 RESTART
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CCS A
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TCF ITSATBL # NO, IT'S A TABLE RESTART
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CA PRIO14 # IT IS AN X.1 RESTART, THEREFORE START
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TC FINDVAC # THE DISPLAY RESTART JOB
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EBANK= LST1
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2CADR INITDSP
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TC RTRNCADR # FINISHED WITH THIS GROUP, GET NEXT ONE
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ITSAVAR MASK OCT1400 # IS IT TYPE B ?
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CCS A
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TCF ITSLIKEB # YES, IT IS TYPE B
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EXTEND # STORES THE JOB (OR TASK) 2CADR FOR EXIT
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NDX TEMP2G
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DCA PHSNAME1
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DXCH GOLOC
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CA TEMPPHS # SEE IF THIS IS A JOB, TASK, OR A LONGCALL
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MASK OCT7
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AD MINUS2
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CCS A
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TCF ITSLNGCL # IT'S A LONGCALL
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# Page 1415
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RTRNCADR TC SWRETURN # CAN'T GET HERE.
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TCF ITSAWAIT
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TCF ITSAJOB # IT'S A JOB
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ITSAWAIT CA WTLTCADR # SET UP WAITLIST CALL
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TS GOLOC -1
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NDX TEMP2G # DIRECTLY STORED
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CA PHSPRDT1
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TIMETEST CCS A # IS IT AN IMMEDIATE RESTART
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INCR A # NO.
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TCF FINDTIME # FIND OUT WHEN IT SHOULD BEGIN
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TCF ITSINDIR # STORED INDIRECTLY
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TCF IMEDIATE # IT WANTS AN IMMEDIATE RESTART
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# ***** THIS MUST BE IN FIXED FIXED *****
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BLOCK 02
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SETLOC FFTAG2
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BANK
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COUNT 02/RSROU
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ITSINDIR LXCH GOLOC +1 # GET THE CORRECT E BANK IN CASE THIS IS
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LXCH BB # SWITCHED ERASABLE
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NDX A # GET THE TIME INDIRECTLY
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CA 1
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LXCH BB # RESTORE THE BB AND GOLOC
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LXCH GOLOC +1
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TCF FINDTIME # FIND OUT WHEN IT SHOULD BEGIN
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# ***** YOU MAY RETURN TO SWITCHED FIXED *****
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BANK 01
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SETLOC RESTART
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BANK
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COUNT 01/RSROU
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FINDTIME COM # MAKE NEGATIVE SINCE IT WILL BE SUBTRACTED
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TS L # AND SAVE
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NDX TEMP2G
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CS TBASE1
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EXTEND
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# Page 1416
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SU TIME1
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CCS A
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COM
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AD OCT37776
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AD ONE
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AD L
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CCS A
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CA ZERO
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TCF +2
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TCF +1
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IMEDIATE AD ONE
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TC GOLOC -1
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ITSLIKEB CA RTRNCADR # TYPE B, SO STORE RETURN IN
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TS TEMPSWCH # TEMPSWCH IN CASE OF AN EVEN PHASE
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CA PRT2CADR # SET UP EXIT TO GET TABLE PART OF THIS
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TS GOLOC +2 # VARIABLE TYPE OF PHASE
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CA TEMPPHS # MAKE THE PHASE LOOK RIGHT FOR THE TABLE
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MASK OCT177 # PART OF THIS VARIABLE PHASE
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TS TEMPPHS
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EXTEND
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NDX TEMP2G # OBTAIN THE JOB'S 2CADR
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DCA PHSNAME1
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DXCH GOLOC
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ITSAJOB NDX TEMP2G # NOW ADD THE PRIORITY AND LET'S GO
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CA PHSPRDT1
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CHKNOVAC TS GOLOC -1 # SAVE PRIO UNTIL WE SEE IF IT'S
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EXTEND # A FINDVAC OR A NOVAC
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BZMF ITSNOVAC
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CAF FVACCADR # POSITIVE, SET UP FINDVAC CALL.
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XCH GOLOC -1 # PICK UP PRIO
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TC GOLOC -1 AND GO
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ITSNOVAC CAF NOVACADR # NEGATIVE,
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XCH GOLOC -1 # SET UP NOVAC CALL,
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COM # CORRECT PRIO,
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TC GOLOC -1 # AND GO
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ITSATBL TS CYR # FIND OUT IF THE PHASE IS ODD OR EVEN
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CCS CYR
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TCF +1 # IT'S EVEN
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TCF ITSEVEN
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CA RTRNCADR # IN CASE THIS IS THE SECOND PART OF A
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TS GOLOC +2 # TYPE B RESTART, WE NEED PROPER EXIT
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# Page 1417
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CA TEMPPHS # SET UP POINTER FOR FINDING OUR PLACE IN
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TS SR # THE RESTART TABLES
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AD SR
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NDX TEMP2G
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AD SIZETAB +1
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TS POINTER
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CONTBL2 EXTEND # FIND OUT WHAT'S IN THE TABLE
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NDX POINTER
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DCA CADRTAB # GET THE 2CADR
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LXCH GOLOC +1 # STORE THE BB INFORMATION
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CCS A # IS IT A JOB OR IT IT TIMED
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INCR A # POSITIVE, MUST BE A JOB
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TCF ITSAJOB2
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INCR A # MUST BE EITHER A WAITLIST OR LONGCALL
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TS GOLOC # LET'S STORE THE CORRECT CADR
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CA WTLTCADR # SET UP OUR EXIT TO WAITLIST
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TS GOLOC -1
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CA GOLOC +1 # NOW FIND OUT IF IT IS A WAITLIST CALL
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MASK BIT10 # THIS SHOULD BE ONE IF WE HAVE -BB
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CCS A # FOR THAT MATTER SO SHOULD BE BITS 9,8,7,
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# 6,5, AND LAST BUT NOT LEAST (PERHAPS NOT
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# IN IMPORTANCE ANYWAY. BUT 4
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TCF ITSWTLST # IT IS A WAITLIST CALL
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NDX POINTER # OBTAIN THE ORIGINAL DELTA T
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CA PRDTTAB # ADDRESS FOR THIS LONGCALL
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TCF ITSLGCL1 # NOW GO GET THE DELTA TIME
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# ***** THIS MUST BE IN FIXED FIXED *****
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BLOCK 02
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SETLOC FFTAG2
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BANK
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COUNT 02/RSROU
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ITSLGCL1 LXCH GOLOC +1 # OBTAIN THE CORRECT E BANK
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LXCH BB
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LXCH GOLOC +1 # AND PRESERVE OUR E AND F BANKS
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EXTEND # GET THE DELTA TIME
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NDX A
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DCA 0
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# Page 1418
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LXCH GOLOC +1 # RESTORE OUR E AND F BANK
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LXCH BB # RESTORE THE TASKS E AND F BANKS
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LXCH GOLOC +1 # AND PRESERVE OUR L
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TCF ITSLGCL2 # NOT GET'S PROCESS THIS LONGCALL
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# ***** YOU MAY RETURN TO SWITCHED FIXED *****
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BANK 01
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SETLOC RESTART
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BANK
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COUNT 01/RSROU
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ITSLGCL2 DXCH LONGTIME
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EXTEND # CALCULATE TIME LEFT
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DCS TIME2
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DAS LONGTIME
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EXTEND
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DCA LONGBASE
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DAS LONGTIME
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CCS LONGTIME # FIND OUT HOW THIS SHOULD BE RESTARTED
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TCF LONGCLCL
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TCF +2
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TCF IMEDIATE -3
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CCS LONGTIME +1
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TCF LONGCLCL
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NOOP # CAN'T GET HERE ************
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TCF IMEDIATE -3
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TCF IMEDIATE
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LONGCLCL CA LGCLCADR # WE WILL GO TO LONGCALL
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TS GOLOC -1
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EXTEND # PREPARE OUR ENTRY TO LONGCALL
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DCA LONGTIME
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TC GOLOC -1
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ITSLNGCL CA WTLTCADR # ASSUME IT WILL GO TO WAITLIST
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TS GOLOC -1
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NDX TEMP2G
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CS PHSPRDT1 # GET THE DELTA T ADDRESS
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TCF ITSLGCL1 # NOW GET THE DELTA TIME
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ITSWTLST CS GOLOC +1 # CORRECT THE BBCON INFORMATION
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TS GOLOC +1
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# Page 1419
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NDX POINTER # GET THE DT AND FIND OUT IF IT WAS STORED
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CA PRDTTAB # DIRECTLY OR INDIRECTLY
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TCF TIMETEST # FIND OUT HOW THE TIME IS STORED
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ITSAJOB2 XCH GOLOC # STORE THE CADR
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NDX POINTER # ADD THE PRIORITY AND LET'S GO
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CA PRDTTAB
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TCF CHKNOVAC
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ITSEVEN CA TEMPSWCH # SET FOR EITHER THE SECOND PART OF THE
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TS GOLOC +2 # TABLE, OR A RETURN FOR THE NEXT GROUP
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NDX TEMP2G # SET UP POINTER FOR OUR LOCATION WITHIN
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CA SIZETAB # THE TABLE
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AD TEMPPHS # THIS MAY LOOK BAD BUT LET'S SEE YOU DO
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AD TEMPPHS # BETTER IN TIME OR NUMBER OF LOCATIONS
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AD TEMPPHS
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TS POINTER
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TCF CONTBL2 # NO PROCESS WHAT IS IN THE TABLE
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PHSPART2 CA THREE # SET THE POINTER FOR THE SECOND HALF OF
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ADS POINTER # THE TABLE
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CA RTRNCADR # THIS WILL BE OUR LAST TIME THROUGH THE
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TS GOLOC +2 # EVEN TABLE, SO AFTER IT GET THE NEXT
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# GROUP
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TCF CONTBL2 # SO LET'S GET THE SECOND ENTRY IN THE TBL
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TEMPPHS EQUALS MPAC
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TEMP2G EQUALS MPAC +1
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POINTER EQUALS MPAC +2
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TEMPSWCH EQUALS MPAC +3
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GOLOC EQUALS VAC5 +20D
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MINUS2 EQUALS NEG2
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OCT177 EQUALS LOW7
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PHS2CADR GENADR PHSPART2
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PRT2CADR GENADR GETPART2
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LGCLCADR GENADR LONGCALL
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FVACCADR GENADR FINDVAC
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WTLTCADR GENADR WAITLIST
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NOVACADR GENADR NOVAC
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