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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054573,000002: ## Copyright: Public domain.
054574,000003: ## Filename: RESTARTS_ROUTINE.agc
054575,000004: ## Purpose: A section of Luminary revision 98.
054576,000005: ## It is part of the reconstructed source code for the a
054577,000006: ## development version of the flight software for the Lunar
054578,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 11.
054579,000008: ## The code has been recreated from a copy of Luminary 99
054580,000009: ## revision 001, using asterisks indicating changed lines in
054581,000010: ## the listing and Luminary Memo #85, which lists changes between
054582,000011: ## Luminary 98 and 99.
054583,000012: ## Reference: pp. 1303-1308
054584,000013: ## Assembler: yaYUL
054585,000014: ## Contact: Ron Burkey <info@sandroid.org>.
054586,000015: ## Website: www.ibiblio.org/apollo/index.html
054587,000016: ## Mod history: 2019-07-28 MAS Created from Luminary 99.
054588,000017:
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Page 1303
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054590,000019: 01,3526 BANK 01
054591,000020: 01,2000 SETLOC RESTART
054592,000021: 01,2000 BANK
054593,000022:
054594,000023: 01,3526 E3,1436 EBANK= PHSNAME1 # GOPROG MUST SWITCH TO THIS EBANK
054595,000024:
054596,000025: 01,3526 COUNT* $$/RSROU
054597,000026: 01,3526 30161 RESTARTS CA MPAC +5 # GET GROUP NUMBER -1
054598,000027: 01,3527 60000 DOUBLE # SAVE FOR INDEXING
054599,000028: 01,3530 54155 TS TEMP2G
054600,000029:
054601,000030: 01,3531 33770 CA PHS2CADR # SET UP EXIT IN CASE IT IS AN EVEN
054602,000031: 01,3532 54157 TS TEMPSWCH # TABLE PHASE
054603,000032:
054604,000033: 01,3533 33565 CA RTRNCADR # TO SAVE TIME ASSUME IT WILL GET NEXT
054605,000034: 01,3534 54707 TS GOLOC +2 # GROUP AFTER THIS
054606,000035:
054607,000036: 01,3535 30154 CA TEMPPHS
054608,000037: 01,3536 75007 MASK OCT1400
054609,000038: 01,3537 10000 CCS A # IS IT A VARIABLE OR TABLE RESTART
054610,000039: 01,3540 13551 TCF ITSAVAR # IT:S A VARIABLE RESTART
054611,000040:
054612,000041: 01,3541 10154 GETPART2 CCS TEMPPHS # IS IT AN X.1 RESTART
054613,000042: 01,3542 10000 CCS A
054614,000043: 01,3543 13651 TCF ITSATBL # NO, ITS A TABLE RESTART
054615,000044:
054616,000045: 01,3544 35024 CA PRIO14 # IT IS AN X.1 RESTART, THEREFORE START
054617,000046: 01,3545 05105 TC FINDVAC # THE DISPLAY RESTART JOB
054618,000047: 01,3546 E3,1400 EBANK= LST1
054619,000048: 01,3546 03037 20103 2CADR INITDSP
054620,000049:
054621,000050: 01,3550 03565 TC RTRNCADR # FINISHED WITH THIS GROUP, GET NEXT ONE
054622,000051:
054623,000052: 01,3551 75007 ITSAVAR MASK OCT1400 # IS IT TYPE B ?
054624,000053: 01,3552 10000 CCS A
054625,000054: 01,3553 13622 TCF ITSLIKEB # YES, IT IS TYPE B
054626,000055:
054627,000056: 01,3554 00006 EXTEND # STORE THE JOB (OR TASK) 2CADR FOR EXIT
054628,000057: 01,3555 50155 NDX TEMP2G
054629,000058: 01,3556 31437 DCA PHSNAME1
054630,000059: 01,3557 52706 DXCH GOLOC
054631,000060:
054632,000061: 01,3560 30154 CA TEMPPHS # SEE IF THIS IS A JOB, TASK, OR A LONGCAL
054633,000062: 01,3561 74757 MASK OCT7
054634,000063: 01,3562 67746 AD MINUS2
054635,000064: 01,3563 10000 CCS A
054636,000065: 01,3564 13734 TCF ITSLNGCL # ITS A LONGCALL
054637,000066:
054638,000067: 01,3565 04631 RTRNCADR TC SWRETURN # CANT GET HERE
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Page 1304
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054640,000069: 01,3566 13570 TCF ITSAWAIT
054641,000070:
054642,000071: 01,3567 13635 TCF ITSAJOB # ITS A JOB
054643,000072:
054644,000073: 01,3570 33774 ITSAWAIT CA WTLTCADR # SET UP WAITLIST CALL
054645,000074: 01,3571 54704 TS GOLOC -1
054646,000075:
054647,000076: 01,3572 50155 NDX TEMP2G # DIRECTLY STORED
054648,000077: 01,3573 31054 CA PHSPRDT1
054649,000078: 01,3574 10000 TIMETEST CCS A # IS IT AN IMMEDIATE RESTART
054650,000079: 01,3575 24000 INCR A # NO,
054651,000080: 01,3576 13601 TCF FINDTIME # FIND OUT WHEN IT SHOULD BEGIN
054652,000081:
054653,000082: 01,3577 15436 TCF ITSINDIR # STORED INDIRECTLY
054654,000083:
054655,000084: 01,3600 13620 TCF IMEDIATE # IT WANTS AN IMMEDIATE RESTART
054656,000085:
054657,000086: # ***** THIS MUST BE IN FIXED FIXED *****
054658,000087:
054659,000088: 5436 BLOCK 02
054660,000089: 4000 SETLOC FFTAG2
054661,000090: 4000 BANK
054662,000091:
054663,000092: 5436 COUNT* $$/RSROU
054664,000093: 5436 22706 ITSINDIR LXCH GOLOC +1 # GET THE CORRECT E BANK IN CASE THIS IS
054665,000094: 5437 22006 LXCH BB # SWITCHED ERRASIBLE
054666,000095:
054667,000096: 5440 50000 NDX A # GET THE TIME INDIRECTLY
054668,000097: 5441 30001 CA 1
054669,000098:
054670,000099: 5442 22006 LXCH BB # RESTORE THE BB AND GOLOC
054671,000100: 5443 22706 LXCH GOLOC +1
054672,000101:
054673,000102: 5444 13601 TCF FINDTIME # FIND OUT WHEN IT SHOULD BEGIN
054674,000103:
054675,000104: # ***** YOU MAY RETURN TO SWITCHED FIXED *****
054676,000105:
054677,000106: 01,3601 BANK 01
054678,000107: 01,2000 SETLOC RESTART
054679,000108: 01,2000 BANK
054680,000109:
054681,000110: 01,3601 COUNT* $$/RSROU
054682,000111: 01,3601 40000 FINDTIME COM # MAKE NEGITIVE SINCE IT WILL BE SUBTRACTD
054683,000112: 01,3602 54001 TS L # AND SAVE
054684,000113: 01,3603 50155 NDX TEMP2G
054685,000114: 01,3604 41053 CS TBASE1
054686,000115: 01,3605 00006 EXTEND
054687,000116: 01,3606 60025 SU TIME1
054688,000117: 01,3607 10000 CCS A
054689,000118: 01,3610 40000 COM
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Page 1305
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054691,000120: 01,3611 67731 AD OCT37776
054692,000121: 01,3612 64753 AD ONE
054693,000122: 01,3613 60001 AD L
054694,000123: 01,3614 10000 CCS A
054695,000124: 01,3615 34755 CA ZERO
054696,000125: 01,3616 13620 TCF +2
054697,000126: 01,3617 13620 TCF +1
054698,000127: 01,3620 64753 IMEDIATE AD ONE
054699,000128: 01,3621 00704 TC GOLOC -1
054700,000129: 01,3622 33565 ITSLIKEB CA RTRNCADR # TYPE B, SO STORE RETURN IN
054701,000130: 01,3623 54157 TS TEMPSWCH # TEMPSWCH IN CASE OF AN EVEN PHASE
054702,000131:
054703,000132: 01,3624 33771 CA PRT2CADR # SET UP EXIT TO GET TABLE PART OF THIS
054704,000133: 01,3625 54707 TS GOLOC +2 # VARIABLE TYPE OF PHASE
054705,000134:
054706,000135: 01,3626 30154 CA TEMPPHS # MAKE THE PHASE LOOK RIGHT FOR THE TABLE
054707,000136: 01,3627 76074 MASK OCT177 # PART OF THIS VARIABLE PHASE
054708,000137: 01,3630 54154 TS TEMPPHS
054709,000138:
054710,000139: 01,3631 00006 EXTEND
054711,000140: 01,3632 50155 NDX TEMP2G # OBTAIN THE JOB:S 2CADR
054712,000141: 01,3633 31437 DCA PHSNAME1
054713,000142: 01,3634 52706 DXCH GOLOC
054714,000143:
054715,000144: 01,3635 50155 ITSAJOB NDX TEMP2G # NOW ADD THE PRIORITY AND LET:S GO
054716,000145: 01,3636 31054 CA PHSPRDT1
054717,000146: 01,3637 54704 CHKNOVAC TS GOLOC -1 # SAVE PRIO UNTIL WE SEE IF ITS
054718,000147: 01,3640 00006 EXTEND # A FINDVAC OR A NOVAC
054719,000148: 01,3641 63645 BZMF ITSNOVAC
054720,000149:
054721,000150: 01,3642 33773 CAF FVACCADR # POSITIVE, SET UP FINDVAC CALL.
054722,000151: 01,3643 56704 XCH GOLOC -1 # PICK UP PRIO,
054723,000152: 01,3644 00704 TC GOLOC -1 # AND GO
054724,000153:
054725,000154: 01,3645 33775 ITSNOVAC CAF NOVACADR # NEGATIVE,
054726,000155: 01,3646 56704 XCH GOLOC -1 # SET UP NOVAC CALL,
054727,000156: 01,3647 40000 COM # CORRECT PRIO,
054728,000157: 01,3650 00704 TC GOLOC -1 # AND GO
054729,000158:
054730,000159: 01,3651 54020 ITSATBL TS CYR # FIND OUT IF THE PHASE IS ODD OR EVEN
054731,000160: 01,3652 10020 CCS CYR
054732,000161: 01,3653 13654 TCF +1 # IT:S EVEN
054733,000162: 01,3654 13752 TCF ITSEVEN
054734,000163:
054735,000164: 01,3655 33565 CA RTRNCADR # IN CASE THIS IS THE SECOND PART OF A
054736,000165: 01,3656 54707 TS GOLOC +2 # TYPE B RESTART, WE NEED PROPER EXIT
054737,000166:
054738,000167: 01,3657 30154 CA TEMPPHS # SET UP POINTER FOR FINDING OUR PLACE IN
054739,000168: 01,3660 54021 TS SR # THE RESTART TABLES
054740,000169: 01,3661 60021 AD SR
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Page 1306
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054742,000171: 01,3662 50155 NDX TEMP2G
054743,000172: 01,3663 62003 AD SIZETAB +1
054744,000173: 01,3664 54156 TS POINTER
054745,000174:
054746,000175: 01,3665 00006 CONTBL2 EXTEND # FIND OUT WHAT:S IN THE TABLE
054747,000176: 01,3666 50156 NDX POINTER
054748,000177: 01,3667 32002 DCA CADRTAB # GET THE 2CADR
054749,000178:
054750,000179: 01,3670 22706 LXCH GOLOC +1 # STORE THE BB INFORMATION
054751,000180:
054752,000181: 01,3671 10000 CCS A # IS IT A JOB OR IS IT TIMED
054753,000182: 01,3672 24000 INCR A # POSITIVE, MUST BE A JOB
054754,000183: 01,3673 13746 TCF ITSAJOB2
054755,000184:
054756,000185: 01,3674 24000 INCR A # MUST BE EITHER A WAITLIST OR LONGCALL
054757,000186: 01,3675 54705 TS GOLOC # LET-S STORE THE CORRECT CADR
054758,000187:
054759,000188: 01,3676 33774 CA WTLTCADR # SET UP OUR EXIT TO WAITLIST
054760,000189: 01,3677 54704 TS GOLOC -1
054761,000190:
054762,000191: 01,3700 30706 CA GOLOC +1 # NOW FIND OUT IF IT IS A WAITLIST CALL
054763,000192: 01,3701 74742 MASK BIT10 # THIS SHOULD BE ONE IF WE HAVE -BB
054764,000193: 01,3702 10000 CCS A # FOR THAT MATTER SO SHOULD BE BITS 9,8,7,
054765,000194: # 6,5, AND LAST BUT NOT LEAST (PERHAPS NOT
054766,000195: # IN IMPORTANCE ANYWAY. BIT 4
054767,000196: 01,3703 13741 TCF ITSWTLST # IT IS A WAITLIST CALL
054768,000197:
054769,000198: 01,3704 50156 NDX POINTER # OBTAIN THE ORIGINAL DELTA T
054770,000199: 01,3705 32000 CA PRDTTAB # ADDRESS FOR THIS LONGCALL
054771,000200:
054772,000201: 01,3706 15445 TCF ITSLGCL1 # NOW GO GET THE DELTA TIME
054773,000202:
054774,000203: # ***** THIS MUST BE IN FIXED FIXED *****
054775,000204:
054776,000205: 5445 BLOCK 02
054777,000206: 4000 SETLOC FFTAG2
054778,000207: 4000 BANK
054779,000208:
054780,000209: 5445 COUNT* $$/RSROU
054781,000210: 5445 22706 ITSLGCL1 LXCH GOLOC +1 # OBTAIN THE CORRECT E BANK
054782,000211: 5446 22006 LXCH BB
054783,000212: 5447 22706 LXCH GOLOC +1 # AND PRESERVE OUR E AND F BANKS
054784,000213:
054785,000214: 5450 00006 EXTEND # GET THE DELTA TIME
054786,000215: 5451 50000 NDX A
054787,000216: 5452 30001 DCA 0
054788,000217:
054789,000218: 5453 22706 LXCH GOLOC +1 # RESTORE OUR E AND F BANK
054790,000219: 5454 22006 LXCH BB # RESTORE THE TASKS E AND F BANKS
054791,000220: 5455 22706 LXCH GOLOC +1 # AND PRESERVE OUR L
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Page 1307
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054793,000222: 5456 13707 TCF ITSLGCL2 # NOW LET:S PROCESS THIS LONGCALL
054794,000223:
054795,000224: # ***** YOU MAY RETURN TO SWITCHED FIXED *****
054796,000225:
054797,000226: 01,3707 BANK 01
054798,000227: 01,2000 SETLOC RESTART
054799,000228: 01,2000 BANK
054800,000229:
054801,000230: 01,3707 COUNT* $$/RSROU
054802,000231: 01,3707 53154 ITSLGCL2 DXCH LONGTIME
054803,000232:
054804,000233: 01,3710 00006 EXTEND # CALCULATE TIME LEFT
054805,000234: 01,3711 40025 DCS TIME2
054806,000235: 01,3712 21154 DAS LONGTIME
054807,000236: 01,3713 00006 EXTEND
054808,000237: 01,3714 31152 DCA LONGBASE
054809,000238: 01,3715 21154 DAS LONGTIME
054810,000239:
054811,000240: 01,3716 11153 CCS LONGTIME # FIND OUT HOW THIS SHOULD BE RESTARTED
054812,000241: 01,3717 13727 TCF LONGCLCL
054813,000242: 01,3720 13722 TCF +2
054814,000243: 01,3721 13615 TCF IMEDIATE -3
054815,000244: 01,3722 11154 CCS LONGTIME +1
054816,000245: 01,3723 13727 TCF LONGCLCL
054817,000246: 01,3724 13725 NOOP # CAN:T GET HERE *********
054818,000247: 01,3725 13615 TCF IMEDIATE -3
054819,000248: 01,3726 13620 TCF IMEDIATE
054820,000249:
054821,000250: 01,3727 33772 LONGCLCL CA LGCLCADR # WE WILL GO TO LONGCALL
054822,000251: 01,3730 54704 TS GOLOC -1
054823,000252:
054824,000253: 01,3731 00006 EXTEND # PREPARE OUR ENTRY TO LONGCALL
054825,000254: 01,3732 31154 DCA LONGTIME
054826,000255: 01,3733 00704 TC GOLOC -1
054827,000256:
054828,000257: 01,3734 33774 ITSLNGCL CA WTLTCADR # ASSUME IT WILL GO TO WAITLIST
054829,000258: 01,3735 54704 TS GOLOC -1
054830,000259:
054831,000260: 01,3736 50155 NDX TEMP2G
054832,000261: 01,3737 41054 CS PHSPRDT1 # GET THE DELTA T ADDRESS
054833,000262:
054834,000263: 01,3740 15445 TCF ITSLGCL1 # NOW GET THE DELTA TIME
054835,000264:
054836,000265: 01,3741 40706 ITSWTLST CS GOLOC +1 # CORRECT THE BBCON INFORMATION
054837,000266: 01,3742 54706 TS GOLOC +1
054838,000267:
054839,000268: 01,3743 50156 NDX POINTER # GET THE DT AND FIND OUT IF IT WAS STORED
054840,000269: 01,3744 32000 CA PRDTTAB # DIRECTLY OR INDIRECTLY
054841,000270:
054842,000271: 01,3745 13574 TCF TIMETEST # FIND OUT HOW THE TIME IS STORED
054843,000272:
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Page 1308
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054845,000274: 01,3746 56705 ITSAJOB2 XCH GOLOC # STORE THE CADR
054846,000275:
054847,000276: 01,3747 50156 NDX POINTER # ADD THE PRIORITY AND LET:S GO
054848,000277: 01,3750 32000 CA PRDTTAB
054849,000278:
054850,000279: 01,3751 13637 TCF CHKNOVAC
054851,000280:
054852,000281: 01,3752 30157 ITSEVEN CA TEMPSWCH # SET UP FOR EITHER THE SECOND PART OF THE
054853,000282: 01,3753 54707 TS GOLOC +2 # TABLE, OR A RETURN FOR THE NEXT GROUP
054854,000283:
054855,000284: 01,3754 50155 NDX TEMP2G # SET UP POINTER FOR OUR LOCATION WITHIN
054856,000285: 01,3755 32002 CA SIZETAB # THE TABLE
054857,000286: 01,3756 60154 AD TEMPPHS # THIS MAY LOOK BAD BUT LET:S SEE YOU DO
054858,000287: 01,3757 60154 AD TEMPPHS # BETTER IN TIME OR NUMBERR OF LOCATIONS
054859,000288: 01,3760 60154 AD TEMPPHS
054860,000289: 01,3761 54156 TS POINTER
054861,000290:
054862,000291: 01,3762 13665 TCF CONTBL2 # NOW PROCESS WHAT IS IN THE TABLE
054863,000292:
054864,000293: 01,3763 36245 PHSPART2 CA THREE # SET THE POINTER FOR THE SECOND HALF OF
054865,000294: 01,3764 26156 ADS POINTER # THE TABLE
054866,000295:
054867,000296: 01,3765 33565 CA RTRNCADR # THIS WILL BE OUR LAST TIME THROUGH THE
054868,000297: 01,3766 54707 TS GOLOC +2 # EVEN TABLE, SO AFTER IT GET THE NEXT
054869,000298: # GROUP
054870,000299: 01,3767 13665 TCF CONTBL2 # SO LET:S GET THE SECOND ENTRY IN THE TBL
054871,000300:
054872,000301: 01,3770 0154 TEMPPHS EQUALS MPAC
054873,000302: 01,3770 0155 TEMP2G EQUALS MPAC +1
054874,000303: 01,3770 0156 POINTER EQUALS MPAC +2
054875,000304: 01,3770 0157 TEMPSWCH EQUALS MPAC +3
054876,000305: 01,3770 0705 GOLOC EQUALS VAC5 +20D
054877,000306: 01,3770 7746 MINUS2 EQUALS NEG2
054878,000307: 01,3770 6074 OCT177 EQUALS LOW7
054879,000308:
054880,000309: 01,3770 03763 PHS2CADR GENADR PHSPART2
054881,000310: 01,3771 03541 PRT2CADR GENADR GETPART2
054882,000311: 01,3772 05277 LGCLCADR GENADR LONGCALL
054883,000312: 01,3773 05105 FVACCADR GENADR FINDVAC
054884,000313: 01,3774 05203 WTLTCADR GENADR WAITLIST
054885,000314: 01,3775 05072 NOVACADR GENADR NOVAC
054886,000315:
054887,000316:
End of include-file RESTARTS_ROUTINE.agc. Parent file is MAIN.agc