Source Code
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These source-code files are part of a reconstructed copy of Luminary 98, a
development version of the Apollo 11 Lunar Module (LM) Apollo Guidance Computer
(AGC) software.
The reconstruction began with source code of Luminary 99 revision 1 previously
transcribed from a digitized copy of that program. The code was then updated
by undoing changes described in original Luminary memo 85, using asterisks
indicating changed lines in the listing as a guide. While no listing of this
version is known to exist, nor are the memory-bank checksums available,
the reconstruction is believed to be correct because it was an an intermediate
step in reconstructing Luminary 97 whose reconstruction was
verified by matching memory-bank checksums to those listed in drawing 2021152G.
Note that page numbers in the reconstructed code match those on the Luminary 099
revision 001 printout, although the added code would likely have changed page
numbers for a real Luminary 98 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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054592,000002: ## Copyright: Public domain.
054593,000003: ## Filename: RESTARTS_ROUTINE.agc
054594,000004: ## Purpose: A section of Luminary revision 98.
054595,000005: ## It is part of the reconstructed source code for the a
054596,000006: ## development version of the flight software for the Lunar
054597,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 11.
054598,000008: ## The code has been recreated from a copy of Luminary 99
054599,000009: ## revision 001, using asterisks indicating changed lines in
054600,000010: ## the listing and Luminary Memo #85, which lists changes between
054601,000011: ## Luminary 98 and 99.
054602,000012: ## Reference: pp. 1303-1308
054603,000013: ## Assembler: yaYUL
054604,000014: ## Contact: Ron Burkey <info@sandroid.org>.
054605,000015: ## Website: www.ibiblio.org/apollo/index.html
054606,000016: ## Mod history: 2019-07-28 MAS Created from Luminary 99.
054607,000017:
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Page 1303
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054609,000019: 01,3526 BANK 01
054610,000020: 01,2000 SETLOC RESTART
054611,000021: 01,2000 BANK
054612,000022:
054613,000023: 01,3526 E3,1436 EBANK= PHSNAME1 # GOPROG MUST SWITCH TO THIS EBANK
054614,000024:
054615,000025: 01,3526 COUNT* $$/RSROU
054616,000026: 01,3526 30161 RESTARTS CA MPAC +5 # GET GROUP NUMBER -1
054617,000027: 01,3527 60000 DOUBLE # SAVE FOR INDEXING
054618,000028: 01,3530 54155 TS TEMP2G
054619,000029:
054620,000030: 01,3531 33770 CA PHS2CADR # SET UP EXIT IN CASE IT IS AN EVEN
054621,000031: 01,3532 54157 TS TEMPSWCH # TABLE PHASE
054622,000032:
054623,000033: 01,3533 33565 CA RTRNCADR # TO SAVE TIME ASSUME IT WILL GET NEXT
054624,000034: 01,3534 54707 TS GOLOC +2 # GROUP AFTER THIS
054625,000035:
054626,000036: 01,3535 30154 CA TEMPPHS
054627,000037: 01,3536 75007 MASK OCT1400
054628,000038: 01,3537 10000 CCS A # IS IT A VARIABLE OR TABLE RESTART
054629,000039: 01,3540 13551 TCF ITSAVAR # IT:S A VARIABLE RESTART
054630,000040:
054631,000041: 01,3541 10154 GETPART2 CCS TEMPPHS # IS IT AN X.1 RESTART
054632,000042: 01,3542 10000 CCS A
054633,000043: 01,3543 13651 TCF ITSATBL # NO, ITS A TABLE RESTART
054634,000044:
054635,000045: 01,3544 35024 CA PRIO14 # IT IS AN X.1 RESTART, THEREFORE START
054636,000046: 01,3545 05105 TC FINDVAC # THE DISPLAY RESTART JOB
054637,000047: 01,3546 E3,1400 EBANK= LST1
054638,000048: 01,3546 03037 20103 2CADR INITDSP
054639,000049:
054640,000050: 01,3550 03565 TC RTRNCADR # FINISHED WITH THIS GROUP, GET NEXT ONE
054641,000051:
054642,000052: 01,3551 75007 ITSAVAR MASK OCT1400 # IS IT TYPE B ?
054643,000053: 01,3552 10000 CCS A
054644,000054: 01,3553 13622 TCF ITSLIKEB # YES, IT IS TYPE B
054645,000055:
054646,000056: 01,3554 00006 EXTEND # STORE THE JOB (OR TASK) 2CADR FOR EXIT
054647,000057: 01,3555 50155 NDX TEMP2G
054648,000058: 01,3556 31437 DCA PHSNAME1
054649,000059: 01,3557 52706 DXCH GOLOC
054650,000060:
054651,000061: 01,3560 30154 CA TEMPPHS # SEE IF THIS IS A JOB, TASK, OR A LONGCAL
054652,000062: 01,3561 74757 MASK OCT7
054653,000063: 01,3562 67746 AD MINUS2
054654,000064: 01,3563 10000 CCS A
054655,000065: 01,3564 13734 TCF ITSLNGCL # ITS A LONGCALL
054656,000066:
054657,000067: 01,3565 04631 RTRNCADR TC SWRETURN # CANT GET HERE
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Page 1304
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054659,000069: 01,3566 13570 TCF ITSAWAIT
054660,000070:
054661,000071: 01,3567 13635 TCF ITSAJOB # ITS A JOB
054662,000072:
054663,000073: 01,3570 33774 ITSAWAIT CA WTLTCADR # SET UP WAITLIST CALL
054664,000074: 01,3571 54704 TS GOLOC -1
054665,000075:
054666,000076: 01,3572 50155 NDX TEMP2G # DIRECTLY STORED
054667,000077: 01,3573 31054 CA PHSPRDT1
054668,000078: 01,3574 10000 TIMETEST CCS A # IS IT AN IMMEDIATE RESTART
054669,000079: 01,3575 24000 INCR A # NO,
054670,000080: 01,3576 13601 TCF FINDTIME # FIND OUT WHEN IT SHOULD BEGIN
054671,000081:
054672,000082: 01,3577 15436 TCF ITSINDIR # STORED INDIRECTLY
054673,000083:
054674,000084: 01,3600 13620 TCF IMEDIATE # IT WANTS AN IMMEDIATE RESTART
054675,000085:
054676,000086: # ***** THIS MUST BE IN FIXED FIXED *****
054677,000087:
054678,000088: 5436 BLOCK 02
054679,000089: 4000 SETLOC FFTAG2
054680,000090: 4000 BANK
054681,000091:
054682,000092: 5436 COUNT* $$/RSROU
054683,000093: 5436 22706 ITSINDIR LXCH GOLOC +1 # GET THE CORRECT E BANK IN CASE THIS IS
054684,000094: 5437 22006 LXCH BB # SWITCHED ERRASIBLE
054685,000095:
054686,000096: 5440 50000 NDX A # GET THE TIME INDIRECTLY
054687,000097: 5441 30001 CA 1
054688,000098:
054689,000099: 5442 22006 LXCH BB # RESTORE THE BB AND GOLOC
054690,000100: 5443 22706 LXCH GOLOC +1
054691,000101:
054692,000102: 5444 13601 TCF FINDTIME # FIND OUT WHEN IT SHOULD BEGIN
054693,000103:
054694,000104: # ***** YOU MAY RETURN TO SWITCHED FIXED *****
054695,000105:
054696,000106: 01,3601 BANK 01
054697,000107: 01,2000 SETLOC RESTART
054698,000108: 01,2000 BANK
054699,000109:
054700,000110: 01,3601 COUNT* $$/RSROU
054701,000111: 01,3601 40000 FINDTIME COM # MAKE NEGITIVE SINCE IT WILL BE SUBTRACTD
054702,000112: 01,3602 54001 TS L # AND SAVE
054703,000113: 01,3603 50155 NDX TEMP2G
054704,000114: 01,3604 41053 CS TBASE1
054705,000115: 01,3605 00006 EXTEND
054706,000116: 01,3606 60025 SU TIME1
054707,000117: 01,3607 10000 CCS A
054708,000118: 01,3610 40000 COM
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Page 1305
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054710,000120: 01,3611 67731 AD OCT37776
054711,000121: 01,3612 64753 AD ONE
054712,000122: 01,3613 60001 AD L
054713,000123: 01,3614 10000 CCS A
054714,000124: 01,3615 34755 CA ZERO
054715,000125: 01,3616 13620 TCF +2
054716,000126: 01,3617 13620 TCF +1
054717,000127: 01,3620 64753 IMEDIATE AD ONE
054718,000128: 01,3621 00704 TC GOLOC -1
054719,000129: 01,3622 33565 ITSLIKEB CA RTRNCADR # TYPE B, SO STORE RETURN IN
054720,000130: 01,3623 54157 TS TEMPSWCH # TEMPSWCH IN CASE OF AN EVEN PHASE
054721,000131:
054722,000132: 01,3624 33771 CA PRT2CADR # SET UP EXIT TO GET TABLE PART OF THIS
054723,000133: 01,3625 54707 TS GOLOC +2 # VARIABLE TYPE OF PHASE
054724,000134:
054725,000135: 01,3626 30154 CA TEMPPHS # MAKE THE PHASE LOOK RIGHT FOR THE TABLE
054726,000136: 01,3627 76074 MASK OCT177 # PART OF THIS VARIABLE PHASE
054727,000137: 01,3630 54154 TS TEMPPHS
054728,000138:
054729,000139: 01,3631 00006 EXTEND
054730,000140: 01,3632 50155 NDX TEMP2G # OBTAIN THE JOB:S 2CADR
054731,000141: 01,3633 31437 DCA PHSNAME1
054732,000142: 01,3634 52706 DXCH GOLOC
054733,000143:
054734,000144: 01,3635 50155 ITSAJOB NDX TEMP2G # NOW ADD THE PRIORITY AND LET:S GO
054735,000145: 01,3636 31054 CA PHSPRDT1
054736,000146: 01,3637 54704 CHKNOVAC TS GOLOC -1 # SAVE PRIO UNTIL WE SEE IF ITS
054737,000147: 01,3640 00006 EXTEND # A FINDVAC OR A NOVAC
054738,000148: 01,3641 63645 BZMF ITSNOVAC
054739,000149:
054740,000150: 01,3642 33773 CAF FVACCADR # POSITIVE, SET UP FINDVAC CALL.
054741,000151: 01,3643 56704 XCH GOLOC -1 # PICK UP PRIO,
054742,000152: 01,3644 00704 TC GOLOC -1 # AND GO
054743,000153:
054744,000154: 01,3645 33775 ITSNOVAC CAF NOVACADR # NEGATIVE,
054745,000155: 01,3646 56704 XCH GOLOC -1 # SET UP NOVAC CALL,
054746,000156: 01,3647 40000 COM # CORRECT PRIO,
054747,000157: 01,3650 00704 TC GOLOC -1 # AND GO
054748,000158:
054749,000159: 01,3651 54020 ITSATBL TS CYR # FIND OUT IF THE PHASE IS ODD OR EVEN
054750,000160: 01,3652 10020 CCS CYR
054751,000161: 01,3653 13654 TCF +1 # IT:S EVEN
054752,000162: 01,3654 13752 TCF ITSEVEN
054753,000163:
054754,000164: 01,3655 33565 CA RTRNCADR # IN CASE THIS IS THE SECOND PART OF A
054755,000165: 01,3656 54707 TS GOLOC +2 # TYPE B RESTART, WE NEED PROPER EXIT
054756,000166:
054757,000167: 01,3657 30154 CA TEMPPHS # SET UP POINTER FOR FINDING OUR PLACE IN
054758,000168: 01,3660 54021 TS SR # THE RESTART TABLES
054759,000169: 01,3661 60021 AD SR
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Page 1306
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054761,000171: 01,3662 50155 NDX TEMP2G
054762,000172: 01,3663 62003 AD SIZETAB +1
054763,000173: 01,3664 54156 TS POINTER
054764,000174:
054765,000175: 01,3665 00006 CONTBL2 EXTEND # FIND OUT WHAT:S IN THE TABLE
054766,000176: 01,3666 50156 NDX POINTER
054767,000177: 01,3667 32002 DCA CADRTAB # GET THE 2CADR
054768,000178:
054769,000179: 01,3670 22706 LXCH GOLOC +1 # STORE THE BB INFORMATION
054770,000180:
054771,000181: 01,3671 10000 CCS A # IS IT A JOB OR IS IT TIMED
054772,000182: 01,3672 24000 INCR A # POSITIVE, MUST BE A JOB
054773,000183: 01,3673 13746 TCF ITSAJOB2
054774,000184:
054775,000185: 01,3674 24000 INCR A # MUST BE EITHER A WAITLIST OR LONGCALL
054776,000186: 01,3675 54705 TS GOLOC # LET-S STORE THE CORRECT CADR
054777,000187:
054778,000188: 01,3676 33774 CA WTLTCADR # SET UP OUR EXIT TO WAITLIST
054779,000189: 01,3677 54704 TS GOLOC -1
054780,000190:
054781,000191: 01,3700 30706 CA GOLOC +1 # NOW FIND OUT IF IT IS A WAITLIST CALL
054782,000192: 01,3701 74742 MASK BIT10 # THIS SHOULD BE ONE IF WE HAVE -BB
054783,000193: 01,3702 10000 CCS A # FOR THAT MATTER SO SHOULD BE BITS 9,8,7,
054784,000194: # 6,5, AND LAST BUT NOT LEAST (PERHAPS NOT
054785,000195: # IN IMPORTANCE ANYWAY. BIT 4
054786,000196: 01,3703 13741 TCF ITSWTLST # IT IS A WAITLIST CALL
054787,000197:
054788,000198: 01,3704 50156 NDX POINTER # OBTAIN THE ORIGINAL DELTA T
054789,000199: 01,3705 32000 CA PRDTTAB # ADDRESS FOR THIS LONGCALL
054790,000200:
054791,000201: 01,3706 15445 TCF ITSLGCL1 # NOW GO GET THE DELTA TIME
054792,000202:
054793,000203: # ***** THIS MUST BE IN FIXED FIXED *****
054794,000204:
054795,000205: 5445 BLOCK 02
054796,000206: 4000 SETLOC FFTAG2
054797,000207: 4000 BANK
054798,000208:
054799,000209: 5445 COUNT* $$/RSROU
054800,000210: 5445 22706 ITSLGCL1 LXCH GOLOC +1 # OBTAIN THE CORRECT E BANK
054801,000211: 5446 22006 LXCH BB
054802,000212: 5447 22706 LXCH GOLOC +1 # AND PRESERVE OUR E AND F BANKS
054803,000213:
054804,000214: 5450 00006 EXTEND # GET THE DELTA TIME
054805,000215: 5451 50000 NDX A
054806,000216: 5452 30001 DCA 0
054807,000217:
054808,000218: 5453 22706 LXCH GOLOC +1 # RESTORE OUR E AND F BANK
054809,000219: 5454 22006 LXCH BB # RESTORE THE TASKS E AND F BANKS
054810,000220: 5455 22706 LXCH GOLOC +1 # AND PRESERVE OUR L
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Page 1307
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054812,000222: 5456 13707 TCF ITSLGCL2 # NOW LET:S PROCESS THIS LONGCALL
054813,000223:
054814,000224: # ***** YOU MAY RETURN TO SWITCHED FIXED *****
054815,000225:
054816,000226: 01,3707 BANK 01
054817,000227: 01,2000 SETLOC RESTART
054818,000228: 01,2000 BANK
054819,000229:
054820,000230: 01,3707 COUNT* $$/RSROU
054821,000231: 01,3707 53154 ITSLGCL2 DXCH LONGTIME
054822,000232:
054823,000233: 01,3710 00006 EXTEND # CALCULATE TIME LEFT
054824,000234: 01,3711 40025 DCS TIME2
054825,000235: 01,3712 21154 DAS LONGTIME
054826,000236: 01,3713 00006 EXTEND
054827,000237: 01,3714 31152 DCA LONGBASE
054828,000238: 01,3715 21154 DAS LONGTIME
054829,000239:
054830,000240: 01,3716 11153 CCS LONGTIME # FIND OUT HOW THIS SHOULD BE RESTARTED
054831,000241: 01,3717 13727 TCF LONGCLCL
054832,000242: 01,3720 13722 TCF +2
054833,000243: 01,3721 13615 TCF IMEDIATE -3
054834,000244: 01,3722 11154 CCS LONGTIME +1
054835,000245: 01,3723 13727 TCF LONGCLCL
054836,000246: 01,3724 13725 NOOP # CAN:T GET HERE *********
054837,000247: 01,3725 13615 TCF IMEDIATE -3
054838,000248: 01,3726 13620 TCF IMEDIATE
054839,000249:
054840,000250: 01,3727 33772 LONGCLCL CA LGCLCADR # WE WILL GO TO LONGCALL
054841,000251: 01,3730 54704 TS GOLOC -1
054842,000252:
054843,000253: 01,3731 00006 EXTEND # PREPARE OUR ENTRY TO LONGCALL
054844,000254: 01,3732 31154 DCA LONGTIME
054845,000255: 01,3733 00704 TC GOLOC -1
054846,000256:
054847,000257: 01,3734 33774 ITSLNGCL CA WTLTCADR # ASSUME IT WILL GO TO WAITLIST
054848,000258: 01,3735 54704 TS GOLOC -1
054849,000259:
054850,000260: 01,3736 50155 NDX TEMP2G
054851,000261: 01,3737 41054 CS PHSPRDT1 # GET THE DELTA T ADDRESS
054852,000262:
054853,000263: 01,3740 15445 TCF ITSLGCL1 # NOW GET THE DELTA TIME
054854,000264:
054855,000265: 01,3741 40706 ITSWTLST CS GOLOC +1 # CORRECT THE BBCON INFORMATION
054856,000266: 01,3742 54706 TS GOLOC +1
054857,000267:
054858,000268: 01,3743 50156 NDX POINTER # GET THE DT AND FIND OUT IF IT WAS STORED
054859,000269: 01,3744 32000 CA PRDTTAB # DIRECTLY OR INDIRECTLY
054860,000270:
054861,000271: 01,3745 13574 TCF TIMETEST # FIND OUT HOW THE TIME IS STORED
054862,000272:
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Page 1308
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054864,000274: 01,3746 56705 ITSAJOB2 XCH GOLOC # STORE THE CADR
054865,000275:
054866,000276: 01,3747 50156 NDX POINTER # ADD THE PRIORITY AND LET:S GO
054867,000277: 01,3750 32000 CA PRDTTAB
054868,000278:
054869,000279: 01,3751 13637 TCF CHKNOVAC
054870,000280:
054871,000281: 01,3752 30157 ITSEVEN CA TEMPSWCH # SET UP FOR EITHER THE SECOND PART OF THE
054872,000282: 01,3753 54707 TS GOLOC +2 # TABLE, OR A RETURN FOR THE NEXT GROUP
054873,000283:
054874,000284: 01,3754 50155 NDX TEMP2G # SET UP POINTER FOR OUR LOCATION WITHIN
054875,000285: 01,3755 32002 CA SIZETAB # THE TABLE
054876,000286: 01,3756 60154 AD TEMPPHS # THIS MAY LOOK BAD BUT LET:S SEE YOU DO
054877,000287: 01,3757 60154 AD TEMPPHS # BETTER IN TIME OR NUMBERR OF LOCATIONS
054878,000288: 01,3760 60154 AD TEMPPHS
054879,000289: 01,3761 54156 TS POINTER
054880,000290:
054881,000291: 01,3762 13665 TCF CONTBL2 # NOW PROCESS WHAT IS IN THE TABLE
054882,000292:
054883,000293: 01,3763 36245 PHSPART2 CA THREE # SET THE POINTER FOR THE SECOND HALF OF
054884,000294: 01,3764 26156 ADS POINTER # THE TABLE
054885,000295:
054886,000296: 01,3765 33565 CA RTRNCADR # THIS WILL BE OUR LAST TIME THROUGH THE
054887,000297: 01,3766 54707 TS GOLOC +2 # EVEN TABLE, SO AFTER IT GET THE NEXT
054888,000298: # GROUP
054889,000299: 01,3767 13665 TCF CONTBL2 # SO LET:S GET THE SECOND ENTRY IN THE TBL
054890,000300:
054891,000301: 01,3770 0154 TEMPPHS EQUALS MPAC
054892,000302: 01,3770 0155 TEMP2G EQUALS MPAC +1
054893,000303: 01,3770 0156 POINTER EQUALS MPAC +2
054894,000304: 01,3770 0157 TEMPSWCH EQUALS MPAC +3
054895,000305: 01,3770 0705 GOLOC EQUALS VAC5 +20D
054896,000306: 01,3770 7746 MINUS2 EQUALS NEG2
054897,000307: 01,3770 6074 OCT177 EQUALS LOW7
054898,000308:
054899,000309: 01,3770 03763 PHS2CADR GENADR PHSPART2
054900,000310: 01,3771 03541 PRT2CADR GENADR GETPART2
054901,000311: 01,3772 05277 LGCLCADR GENADR LONGCALL
054902,000312: 01,3773 05105 FVACCADR GENADR FINDVAC
054903,000313: 01,3774 05203 WTLTCADR GENADR WAITLIST
054904,000314: 01,3775 05072 NOVACADR GENADR NOVAC
054905,000315:
054906,000316:
End of include-file RESTARTS_ROUTINE.agc. Parent file is MAIN.agc