Source Code
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These source-code files are part of a reconstructed copy of Luminary 97, the
original release 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 memos 83 and 85, using asterisks
indicating changed lines in the listing as a guide. The reconstruction was
verified by matching memory-bank checksums to those listed in drawing 2021152D.
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 97 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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058022,000002: ## Copyright: Public domain.
058023,000003: ## Filename: ALARM_AND_ABORT.agc
058024,000004: ## Purpose: A section of Luminary revision 97.
058025,000005: ## It is part of the reconstructed source code for the
058026,000006: ## original release of the flight software for the Lunar
058027,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 11.
058028,000008: ## The code has been recreated from a copy of Luminary 99
058029,000009: ## revision 001, using asterisks indicating changed lines in
058030,000010: ## the listing and Luminary Memos #83 and #85, which list
058031,000011: ## changes between Luminary 97 and 98, and 98 and 99. The
058032,000012: ## code has been adapted such that the resulting bugger words
058033,000013: ## exactly match those specified for Luminary 97 in NASA drawing
058034,000014: ## 2021152D, which gives relatively high confidence that the
058035,000015: ## reconstruction is correct.
058036,000016: ## Reference: pp. 1381-1385
058037,000017: ## Assembler: yaYUL
058038,000018: ## Contact: Ron Burkey <info@sandroid.org>.
058039,000019: ## Website: www.ibiblio.org/apollo/index.html
058040,000020: ## Mod history: 2019-07-28 MAS Created from Luminary 99.
058041,000021:
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Page 1381
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058043,000023: # THE FOLLOWING SUBROUTINE MAY BE CALLED TO DISPLAY A NON-ABORTIVE ALARM CONDITION. IT MAY BE CALLED
058044,000024: # EITHER IN INTERRUPT OR UNDER EXECUTIVE CONTROL.
058045,000025:
058046,000026: # CALLING SEQUENCE IS AS FOLLOWS:
058047,000027: # TC ALARM
058048,000028: # OCT AAANN ALARM NO. NN IN GENERAL AREA AAA.
058049,000029: # (RETURNS HERE)
058050,000030:
058051,000031: 5567 BLOCK 02
058052,000032: 4000 SETLOC FFTAG7
058053,000033: 4000 BANK
058054,000034:
058055,000035: 5567 0375 EBANK= FAILREG
058056,000036:
058057,000037: 5567 COUNT* $$/ALARM
058058,000038:
058059,000039: # ALARM TURNS ON THE PROGRAM ALARM LIGHT, BUT DOES NOT DISPLAY.
058060,000040:
058061,000041: 5567 00004 ALARM INHINT
058062,000042:
058063,000043: 5570 30002 CA Q
058064,000044: 5571 55363 ALARM2 TS ALMCADR
058065,000045: 5572 50002 INDEX Q
058066,000046: 5573 30000 CA 0
058067,000047: 5574 54001 BORTENT TS L
058068,000048:
058069,000049: 5575 30006 PRIOENT CA BBANK
058070,000050: 5576 00006 +1 EXTEND
058071,000051: 5577 04007 ROR SUPERBNK # ADD SUPER BITS.
058072,000052: 5600 55364 TS ALMCADR +1
058073,000053:
058074,000054: 5601 30002 LARMENT CA Q # STORE RETURN FOR ALARM
058075,000055: 5602 54061 TS ITEMP1
058076,000056:
058077,000057: 5603 10375 CHKFAIL1 CCS FAILREG # IS ANYTHING IN FAILREG
058078,000058: 5604 15607 TCF CHKFAIL2 # YES TRY NEXT REG
058079,000059: 5605 22375 LXCH FAILREG
058080,000060: 5606 15621 TCF PROGLARM # TURN ALARM LIGHT ON FOR FIRST ALARM
058081,000061:
058082,000062: 5607 10376 CHKFAIL2 CCS FAILREG +1
058083,000063: 5610 15613 TCF FAIL3
058084,000064: 5611 22376 LXCH FAILREG +1
058085,000065: 5612 15624 TCF MULTEXIT
058086,000066:
058087,000067: 5613 30377 FAIL3 CA FAILREG +2
058088,000068: 5614 74733 MASK POSMAX
058089,000069: 5615 10000 CCS A
058090,000070: 5616 15630 TCF MULTFAIL
058091,000071: 5617 22377 LXCH FAILREG +2
058092,000072: 5620 15624 TCF MULTEXIT
058093,000073:
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Page 1382
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058095,000075:
058096,000076: 5621 41036 PROGLARM CS DSPTAB +11D
058097,000077: 5622 75642 MASK OCT40400
058098,000078: 5623 27036 ADS DSPTAB +11D
058099,000079:
058100,000080:
058101,000081: 5624 56061 MULTEXIT XCH ITEMP1 # OBTAIN RETURN ADDRESS IN A
058102,000082: 5625 00003 RELINT
058103,000083: 5626 50000 INDEX A
058104,000084: 5627 00001 TC 1
058105,000085:
058106,000086: 5630 30001 MULTFAIL CA L
058107,000087: 5631 64735 AD BIT15
058108,000088: 5632 54377 TS FAILREG +2
058109,000089:
058110,000090: 5633 15624 TCF MULTEXIT
058111,000091:
058112,000092: # PRIOLARM DISPLAYS V05N09 VIA PRIODSPR WITH 3 RETURNS TO THE USER FROM THE ASTRONAUT AT CALL LOC +1,+2,+3 AND
058113,000093: # AN IMMEDIATE RETURN TO THE USER AT CALL LOC +4. EXAMPLE FOLLOWS,
058114,000094: # CAF OCTXX ALARM CODE
058115,000095: # TC BANKCALL
058116,000096: # CADR PRIOLARM
058117,000097: # ... ...
058118,000098: # ... ...
058119,000099: # ... ... ASTRONAUT RETURN
058120,000100: # TC PHASCHNG IMMEDIATE RETURN TO USER. RESTART
058121,000101: # OCT X.1 PHASE CHANGE FOR PRIO DISPLAY
058122,000102:
058123,000103: 10,3562 BANK 10
058124,000104: 10,2000 SETLOC DISPLAYS
058125,000105: 10,2000 BANK
058126,000106:
058127,000107: 10,3562 COUNT* $$/DSPLA
058128,000108: 10,3562 00004 PRIOLARM INHINT # * * * KEEP IN DISPLAY ROUTINES BANK
058129,000109: 10,3563 54001 TS L # SAVE ALARM CODE
058130,000110:
058131,000111: 10,3564 30133 CA BUF2 # 2 CADR OF PRIOLARM USER
058132,000112: 10,3565 55363 TS ALMCADR
058133,000113: 10,3566 30134 CA BUF2 +1
058134,000114: 10,3567 05576 TC PRIOENT +1 # * LEAVE L ALONE
058135,000115: 10,3570 77467 -2SEC DEC -200 B-14 # *** DONT MOVE
058136,000116: 10,3571 35006 CAF V05N09
058137,000117: 10,3572 12504 TCF PRIODSPR
058138,000118:
058139,000119: 5634 BLOCK 02
058140,000120: 4000 SETLOC FFTAG7
058141,000121: 4000 BANK
058142,000122:
058143,000123: 5634 COUNT* $$/ALARM
058144,000124: 5634 00004 BAILOUT INHINT
058145,000125: 5635 30002 CA Q
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Page 1383
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058147,000127: 5636 55363 TS ALMCADR
058148,000128:
058149,000129: 5637 50002 INDEX Q
058150,000130: 5640 30000 CAF 0
058151,000131: 5641 05574 TC BORTENT
058152,000132: 5642 40400 OCT40400 OCT 40400
058153,000133:
058154,000134: 5643 00004 INHINT
058155,000135: 5644 34752 WHIMPER CA TWO
058156,000136: 5645 60005 AD Z
058157,000137: 5646 54017 TS BRUPT
058158,000138: 5647 50017 RESUME
058159,000139: 5650 04635 TC POSTJUMP # RESUME SENDS CONTROL HERE
058160,000140: 5651 12765 CADR ENEMA
058161,000141: 5652 00004 POODOO INHINT
058162,000142: 5653 30002 CA Q
058163,000143: 5654 55363 ABORT2 TS ALMCADR
058164,000144: 5655 50002 INDEX Q
058165,000145: 5656 30000 CAF 0
058166,000146: 5657 05574 TC BORTENT
058167,000147: 5660 77770 OCT77770 OCT 77770 # DON'T MOVE
058168,000148:
058169,000149: 5661 34765 CAF OCT35 # 4.35SPOT FOR GOPOODOO
058170,000150: 5662 54001 TS L
058171,000151: 5663 40000 COM
058172,000152: 5664 52761 DXCH -PHASE4
058173,000153: 5665 00004 GOPOODOO INHINT
058174,000154: 5666 04616 TC BANKCALL # RESET STATEFLG, REINTFLG, AND NODOFLAG.
058175,000155: 5667 27755 CADR FLAGS
058176,000156: 5670 30103 CA FLAGWRD7 # IS SERVICER CURRENTLY IN OPERATION?
058177,000157: 5671 74746 MASK V37FLBIT
058178,000158: 5672 10000 CCS A
058179,000159: 5673 15701 TCF STRTIDLE
058180,000160: 5674 04616 TC BANKCALL # TERMINATE GRPS 1, 3, 5, AND 6
058181,000161: 5675 12652 CADR V37KLEAN
058182,000162: 5676 04616 TC BANKCALL # TERMINATE GRPS 2, 4, 1, 3, 5, AND 6
058183,000163: 5677 12643 CADR MR.KLEAN # (I.E., GRP 4 LAST)
058184,000164: 5700 15644 TCF WHIMPER
058185,000165: 5701 35743 STRTIDLE CAF BBSERVDL
058186,000166: 5702 04727 TC SUPERSW
058187,000167: 5703 04616 TC BANKCALL # PUT SERVICER INTO ITS "GROUND" STATE
058188,000168: 5704 57321 CADR SERVIDLE # AND PROCEED TO GOTOPOOH.
058189,000169: 5705 00004 CCSHOLE INHINT
058190,000170: 5706 30002 CA Q
058191,000171: 5707 05654 TC ABORT2
058192,000172: 5710 01103 OCT21103 OCT 1103
058193,000173: 5711 00004 CURTAINS INHINT
058194,000174: 5712 30002 CA Q
058195,000175: 5713 05571 TC ALARM2
058196,000176: 5714 00217 OCT217 OCT 00217
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Page 1384
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058198,000178: 5715 01363 TC ALMCADR # RETURN TO USER
058199,000179:
058200,000180: 5716 00004 BAILOUT1 INHINT
058201,000181: 5717 53364 DXCH ALMCADR
058202,000182: 5720 35742 CAF ADR40400
058203,000183: 5721 54061 BOTHABRT TS ITEMP1
058204,000184: 5722 50002 INDEX Q
058205,000185: 5723 30000 CAF 0
058206,000186: 5724 54001 TS L
058207,000187: 5725 15603 TCF CHKFAIL1
058208,000188: 5726 00004 POODOO1 INHINT
058209,000189: 5727 53364 DXCH ALMCADR
058210,000190: 5730 35741 CAF ADR77770
058211,000191: 5731 15721 TCF BOTHABRT
058212,000192:
058213,000193: 5732 00004 ALARM1 INHINT
058214,000194: 5733 53364 DXCH ALMCADR
058215,000195: 5734 00004 ALMNCADR INHINT
058216,000196: 5735 50002 INDEX Q
058217,000197: 5736 30000 CA 0
058218,000198: 5737 54001 TS L
058219,000199: 5740 15601 TCF LARMENT
058220,000200:
058221,000201: 5741 15660 ADR77770 TCF OCT77770
058222,000202: 5742 15642 ADR40400 TCF OCT40400
058223,000203: 5743 5155 DOALARM EQUALS ENDOFJOB
058224,000204: 5743 E7,1515 EBANK= DVCNTR
058225,000205: 5743 56067 BBSERVDL BBCON SERVIDLE
058226,000206:
058227,000207: # CALLING SEQUENCE FOR VARALARM
058228,000208: # CAF (ALARM)
058229,000209: # TC VARALARM
058230,000210:
058231,000211: # VARALARM TURNS ON PROGRAM ALARM LIGHT BUT DOES NOT DISPLAY
058232,000212:
058233,000213: 5744 00004 VARALARM INHINT
058234,000214:
058235,000215: 5745 54001 TS L # SAVE USERS ALARM CODE
058236,000216:
058237,000217: 5746 30002 CA Q # SAVE USERS Q
058238,000218: 5747 55363 TS ALMCADR
058239,000219:
058240,000220: 5750 05575 TC PRIOENT
058241,000221: 5751 00014 OCT14 OCT 14 # DONT MOVE
058242,000222:
058243,000223: 5752 01363 TC ALMCADR # RETURN TO USER
058244,000224:
058245,000225: 5753 5644 ABORT EQUALS WHIMPER
058246,000226: 13,3755 BANK 13
058247,000227: 13,2000 SETLOC ABTFLGS
058248,000228: 13,2000 BANK
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Page 1385
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058250,000230: 13,3755 COUNT* $$/ALARM
058251,000231:
058252,000232: 13,3755 44747 FLAGS CS STATEBIT
058253,000233: 13,3756 70077 MASK FLAGWRD3
058254,000234: 13,3757 54077 TS FLAGWRD3
058255,000235: 13,3760 44745 CS REINTBIT
058256,000236: 13,3761 70106 MASK FLGWRD10
058257,000237: 13,3762 54106 TS FLGWRD10
058258,000238: 13,3763 44753 CS NODOBIT
058259,000239: 13,3764 70076 MASK FLAGWRD2
058260,000240: 13,3765 54076 TS FLAGWRD2
058261,000241: 13,3766 00002 TC Q
058262,000242:
End of include-file ALARM_AND_ABORT.agc. Parent file is MAIN.agc