Source Code
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These source-code files are part of a reconstructed copy of Luminary 173, the
second (unflown) release of the Apollo 14 Lunar Module (LM) Apollo Guidance
Computer (AGC) software.
The reconstruction began with reconstructed source code for Luminary 178. Changes
between revision 173 and 178 were backed out, as described by Luminary memo 167
(revision 1). The reconstruction was verified by matching memory-bank checksums
to those listed in drawing 2021152N. Note that page numbers in the reconstructed
code match those for the baseline log section mentioned in each file's changelog;
the page numbers for a real Luminary 173 listing would be different.
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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058536,000002: ## Copyright: Public domain.
058537,000003: ## Filename: ALARM_AND_ABORT.agc
058538,000004: ## Purpose: A section of Luminary revision 173.
058539,000005: ## It is part of the reconstructed source code for the second
058540,000006: ## (unflown) release of the flight software for the Lunar
058541,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 14.
058542,000008: ## The code has been recreated from a reconstructed copy of
058543,000009: ## Luminary 178, as well as Luminary memo 167 (revision 1).
058544,000010: ## It has been adapted such that the resulting bugger words
058545,000011: ## exactly match those specified for Luminary 173 in NASA
058546,000012: ## drawing 2021152N, which gives relatively high confidence
058547,000013: ## that the reconstruction is correct.
058548,000014: ## Reference: pp. 1369-1373
058549,000015: ## Assembler: yaYUL
058550,000016: ## Contact: Ron Burkey <info@sandroid.org>.
058551,000017: ## Website: www.ibiblio.org/apollo/index.html
058552,000018: ## Mod history: 2019-09-18 MAS Created from Luminary 178.
058553,000019:
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Page 1369
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058555,000021: # THE FOLLOWING SUBROUTINE MAY BE CALLED TO DISPLAY A NON-ABORTIVE ALARM CONDITION. IT MAY BE CALLED
058556,000022: # EITHER IN INTERRUPT OR UNDER EXECUTIVE CONTROL.
058557,000023:
058558,000024: # CALLING SEQUENCE IS AS FOLLOWS:
058559,000025:
058560,000026: # TC ALARM
058561,000027: # OCT AAANN ALARM NO. NN IN GENERAL AREA AAA.
058562,000028: # (RETURNS HERE)
058563,000029:
058564,000030: 5600 BLOCK 02
058565,000031: 4000 SETLOC FFTAG7
058566,000032: 4000 BANK
058567,000033:
058568,000034: 5600 0375 EBANK= FAILREG
058569,000035:
058570,000036: 5600 COUNT* $$/ALARM
058571,000037: # ALARM TURNS ON THE PROGRAM ALARM LIGHT, BUT DOES NOT DISPLAY.
058572,000038:
058573,000039: 5600 00004 ALARM INHINT
058574,000040:
058575,000041: 5601 30002 CA Q
058576,000042: 5602 55363 ALARM2 TS ALMCADR
058577,000043: 5603 50002 INDEX Q
058578,000044: 5604 30000 CA 0
058579,000045: 5605 54001 BORTENT TS L
058580,000046:
058581,000047: 5606 30006 PRIOENT CA BBANK
058582,000048: 5607 00006 +1 EXTEND
058583,000049: 5610 04007 ROR SUPERBNK # ADD SUPER BITS.
058584,000050: 5611 55364 TS ALMCADR +1
058585,000051:
058586,000052: 5612 30002 LARMENT CA Q # STORE RETURN FOR ALARM
058587,000053: 5613 54061 TS ITEMP1
058588,000054:
058589,000055: 5614 10375 CHKFAIL1 CCS FAILREG # IS ANYTHING IN FAILREG
058590,000056: 5615 15621 TCF CHKFAIL2 # YES TRY NEXT REG
058591,000057: 5616 30001 CA L
058592,000058: 5617 54375 TS FAILREG
058593,000059: 5620 15625 TCF PROGLARM # TURN ALARM LIGHT ON FOR FIRST ALARM
058594,000060:
058595,000061: 5621 10376 CHKFAIL2 CCS FAILREG +1
058596,000062: 5622 15625 TCF PROGLARM
058597,000063: 5623 30001 CA L
058598,000064: 5624 54376 TS FAILREG +1
058599,000065:
058600,000066: 5625 22377 PROGLARM LXCH FAILREG +2 # STORE AS "MOST RECENT" ALARM CODE
058601,000067:
058602,000068: 5626 41035 CS DSPTAB +11D # TURN ON PROGRAM ALARM IF OFF
058603,000069: 5627 75643 MASK OCT40400
058604,000070: 5630 27035 ADS DSPTAB +11D
058605,000071:
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Page 1370
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058607,000073: 5631 56061 MULTEXIT XCH ITEMP1 # OBTAIN RETURN ADDRESS IN A
058608,000074: 5632 00003 RELINT
058609,000075: 5633 50000 INDEX A
058610,000076: 5634 00001 TC 1
058611,000077:
058612,000078: # PRIOLARM DISPLAYS V05N09 VIA PRIODSPR WITH 3 RETURNS TO THE USER FROM THE ASTRONAUT AT CALL LOC +1,+2,+3 AND
058613,000079: # AN IMMEDIATE RETURN TO THE USER AT CALL LOC +4. EXAMPLE FOLLOWS,
058614,000080: # CAF OCTXX ALARM CODE
058615,000081: # TC BANKCALL
058616,000082: # CADR PRIOLARM
058617,000083:
058618,000084: # ... ...
058619,000085: # ... ...
058620,000086: # ... ... ASTRONAUT RETURN
058621,000087: # TC PHASCHNG IMMEDIATE RETURN TO USER. RESTART
058622,000088: # OCT X.1 PHASE CHANGE FOR PRIO DISPLAY
058623,000089:
058624,000090: 10,3563 BANK 10
058625,000091: 10,2000 SETLOC DISPLAYS
058626,000092: 10,2000 BANK
058627,000093:
058628,000094: 10,3563 COUNT* $$/DSPLA
058629,000095: 10,3563 00004 PRIOLARM INHINT # * * * KEEP IN DISPLAY ROUTINES BANK
058630,000096: 10,3564 54001 TS L # SAVE ALARM CODE
058631,000097:
058632,000098: 10,3565 30133 CA BUF2 # 2 CADR OF PRIOLARM USER
058633,000099: 10,3566 55363 TS ALMCADR
058634,000100: 10,3567 30134 CA BUF2 +1
058635,000101: 10,3570 05607 TC PRIOENT +1 # * LEAVE L ALONE
058636,000102: 10,3571 77467 -2SEC DEC -200 B-14 # *** DONT MOVE
058637,000103: 10,3572 35006 CAF V05N09
058638,000104: 10,3573 12505 TCF PRIODSPR
058639,000105:
058640,000106: 5635 BLOCK 02
058641,000107: 4000 SETLOC FFTAG7
058642,000108: 4000 BANK
058643,000109:
058644,000110: 5635 COUNT* $$/ALARM
058645,000111: 5635 00004 BAILOUT INHINT
058646,000112: 5636 30002 CA Q
058647,000113: 5637 55363 TS ALMCADR
058648,000114:
058649,000115: 5640 50002 INDEX Q
058650,000116: 5641 30000 CAF 0
058651,000117: 5642 05605 TC BORTENT
058652,000118: 5643 40400 OCT40400 OCT 40400
058653,000119:
058654,000120: 5644 00004 INHINT
058655,000121: 5645 34752 WHIMPER CA TWO
058656,000122: 5646 60005 AD Z
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Page 1371
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058658,000124: 5647 54017 TS BRUPT
058659,000125: 5650 50017 RESUME
058660,000126: 5651 04635 TC POSTJUMP # RESUME SENDS CONTROL HERE
058661,000127: 5652 12775 CADR ENEMA
058662,000128: 5653 00004 POODOO INHINT
058663,000129: 5654 30002 CA Q
058664,000130: 5655 55363 ABORT2 TS ALMCADR
058665,000131: 5656 50002 INDEX Q
058666,000132: 5657 30000 CAF 0
058667,000133: 5660 05605 TC BORTENT
058668,000134: 5661 77770 OCT77770 OCT 77770 # DON'T MOVE
058669,000135:
058670,000136: 5662 34765 CAF OCT35 # 4.35SPOT FOR GOPOODOO
058671,000137: 5663 54001 TS L
058672,000138: 5664 40000 COM
058673,000139: 5665 52760 DXCH -PHASE4
058674,000140: 5666 00004 GOPOODOO INHINT
058675,000141: 5667 04616 TC BANKCALL # RESET STATEFLG, REINTFLG, AND NODOFLAG.
058676,000142: 5670 27746 CADR FLAGS
058677,000143: 5671 30103 CA FLAGWRD7 # IS SERVICER CURRENTLY IN OPERATION?
058678,000144: 5672 74746 MASK V37FLBIT
058679,000145: 5673 10000 CCS A
058680,000146: 5674 15702 TCF STRTIDLE
058681,000147: 5675 04616 TC BANKCALL # TERMINATE GRPS 1, 3, 5, AND 6
058682,000148: 5676 12662 CADR V37KLEAN
058683,000149: 5677 04616 TC BANKCALL # TERMINATE GRPS 2, 4, 1, 3, 5, AND 6
058684,000150: 5700 12653 CADR MR.KLEAN # (I.E., GRP 4 LAST)
058685,000151: 5701 15645 TCF WHIMPER
058686,000152: 5702 35744 STRTIDLE CAF BBSERVDL
058687,000153: 5703 04727 TC SUPERSW
058688,000154: 5704 04616 TC BANKCALL # PUT SERVICER INTO ITS "GROUND" STATE
058689,000155: 5705 57320 CADR SERVIDLE # AND PROCEED TO GOTOPOOH.
058690,000156: 5706 00004 CCSHOLE INHINT
058691,000157: 5707 30002 CA Q
058692,000158: 5710 05655 TC ABORT2
058693,000159: 5711 21103 OCT21103 OCT 21103
058694,000160: 5712 00004 CURTAINS INHINT
058695,000161: 5713 30002 CA Q
058696,000162: 5714 05602 TC ALARM2
058697,000163: 5715 00217 OCT217 OCT 00217
058698,000164: 5716 01363 TC ALMCADR # RETURN TO USER
058699,000165:
058700,000166: 5717 00004 BAILOUT1 INHINT
058701,000167: 5720 53364 DXCH ALMCADR
058702,000168: 5721 35743 CAF ADR40400
058703,000169: 5722 54061 BOTHABRT TS ITEMP1
058704,000170: 5723 50002 INDEX Q
058705,000171: 5724 30000 CAF 0
058706,000172: 5725 54001 TS L
058707,000173: 5726 15614 TCF CHKFAIL1
058708,000174:
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Page 1372
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058710,000176: 5727 00004 POODOO1 INHINT
058711,000177: 5730 53364 DXCH ALMCADR
058712,000178: 5731 35742 CAF ADR77770
058713,000179: 5732 15722 TCF BOTHABRT
058714,000180:
058715,000181: 5733 00004 ALARM1 INHINT
058716,000182: 5734 53364 DXCH ALMCADR
058717,000183: 5735 00004 ALMNCADR INHINT
058718,000184: 5736 50002 INDEX Q
058719,000185: 5737 30000 CA 0
058720,000186: 5740 54001 TS L
058721,000187: 5741 15612 TCF LARMENT
058722,000188:
058723,000189: 5742 15661 ADR77770 TCF OCT77770
058724,000190: 5743 15643 ADR40400 TCF OCT40400
058725,000191: 5744 5155 DOALARM EQUALS ENDOFJOB
058726,000192: 5744 E7,1515 EBANK= DVCNTR
058727,000193: 5744 56067 BBSERVDL BBCON SERVIDLE
058728,000194: # CALLING SEQUENCE FOR VARALARM
058729,000195:
058730,000196: # CAF (ALARM)
058731,000197: # TC VARALARM
058732,000198:
058733,000199: # VARALARM TURNS ON PROGRAM ALARM LIGHT BUT DOES NOT DISPLAY
058734,000200: 5745 00004 VARALARM INHINT
058735,000201:
058736,000202: 5746 54001 TS L # SAVE USERS ALARM CODE
058737,000203:
058738,000204: 5747 30002 CA Q # SAVE USERS Q
058739,000205: 5750 55363 TS ALMCADR
058740,000206:
058741,000207: 5751 05606 TC PRIOENT
058742,000208: 5752 00014 OCT14 OCT 14 # DONT MOVE
058743,000209:
058744,000210: 5753 01363 TC ALMCADR # RETURN TO USER
058745,000211:
058746,000212: 5754 5645 ABORT EQUALS WHIMPER
058747,000213: 13,3746 BANK 13
058748,000214: 13,2000 SETLOC ABTFLGS
058749,000215: 13,2000 BANK
058750,000216: 13,3746 COUNT* $$/ALARM
058751,000217:
058752,000218: 13,3746 44747 FLAGS CS STATEBIT
058753,000219: 13,3747 70077 MASK FLAGWRD3
058754,000220: 13,3750 54077 TS FLAGWRD3
058755,000221: 13,3751 44745 CS REINTBIT
058756,000222: 13,3752 70106 MASK FLGWRD10
058757,000223: 13,3753 54106 TS FLGWRD10
058758,000224: 13,3754 44753 CS NODOBIT
058759,000225: 13,3755 70076 MASK FLAGWRD2
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Page 1373
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058761,000227: 13,3756 54076 TS FLAGWRD2
058762,000228: 13,3757 00002 TC Q
End of include-file ALARM_AND_ABORT.agc. Parent file is MAIN.agc