Source Code
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These source-code files are part of a reconstructed copy of LUM69 Revision 2, the
flown Apollo 10 Lunar Module (LM) Apollo Guidance Computer (AGC) software.
The reconstruction began with source code of Luminary 69 revision 0 previously
transcribed from a digitized copy of that program. The code was then updated
by back-porting the R-2 lunar potential model from previously-transcribed source
code of Luminary 99. These required changes were described in the original
Luminary memos 75 and 78. The reconstructed code 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 069 printout,
although the added code would likely have changed page numbers for a real LUM69
Revision 2 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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010947,000002: ## Copyright: Public domain.
010948,000003: ## Filename: RESTART_TABLES.agc
010949,000004: ## Purpose: A section of LUM69 revision 2.
010950,000005: ## It is part of the reconstructed source code for the flown
010951,000006: ## version of the flight software for the Lunar Module's (LM)
010952,000007: ## Apollo Guidance Computer (AGC) for Apollo 10. The code has
010953,000008: ## been recreated from a copy of Luminary revsion 069, using
010954,000009: ## changes present in Luminary 099 which were described in
010955,000010: ## Luminary memos 75 and 78. The code has been adapted such
010956,000011: ## that the resulting bugger words exactly match those specified
010957,000012: ## for LUM69 revision 2 in NASA drawing 2021152B, which gives
010958,000013: ## relatively high confidence that the reconstruction is correct.
010959,000014: ## Reference: pp. 253-258
010960,000015: ## Assembler: yaYUL
010961,000016: ## Contact: Ron Burkey <info@sandroid.org>.
010962,000017: ## Website: www.ibiblio.org/apollo/index.html
010963,000018: ## Mod history: 2019-07-27 MAS Created from Luminary 69.
010964,000019:
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Page 253
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010966,000021: # RESTART TABLES
010967,000022:
010968,000023: # ------------------
010969,000024:
010970,000025: # THERE ARE TWO FORMS OF RESTART TABLES FOR EACH GROUP. THEY ARE KNOWN AS THE EVEN RESTART TABLES AND THE ODD
010971,000026: # RESTART TABLES. THE ODD TABLES HAVE ONLY ONE ENTRY OF THREE LOCATIONS WHILE THE EVEN TABLES HAVE TWO ENTRIES
010972,000027: # EACH USING THREE LOCATIONS. THE INFORMATION AS TO WHETHER IT IS A JOB, WAITLIST, OR A LONGCALL IS GIVEN BY THE
010973,000028: # WAY THINGS ARE PUT INTO THE TABLES.
010974,000029: # A JOB HAS ITS PRIORITY STORED IN PRDTTAB OF THE CORRECT PHASE SPOT - A POSITIVE PRIORITY INDICATES A
010975,000030: # FINDVAC JOB, A NEGATIVE PRIORITY A NOVAC. THE 2CADR OF THE JOB IS STORED IN THE CADRTAB.
010976,000031: # FOR EXAMPLE,
010977,000032:
010978,000033: # 5.7SPOT OCT 23000
010979,000034: # 2CADR SOMEJOB
010980,000035:
010981,000036: # A RESTART OF GROUP 5 WITH PHASE SEVEN WOULD THEN CAUSE SOMEJOB TO BE RESTARTED AS A FINDVAC WITH PRIORITY 23.
010982,000037:
010983,000038: # 5.5SPOT OCT -23000
010984,000039: # 2CADR ANYJOB
010985,000040:
010986,000041: # HERE A RESTART OF GROUP 5 WITH PHASE 7 WOULD CAUSE ANYJOB TO BE RESTARTED AS A NOVAC WITH PRIORITY 23.
010987,000042: # A LONGCALL HAS ITS GENADR OF ITS 2CADR STORED NEGATIVELY AND ITS BBCON STORED POSITIVELY. IN ITS PRDTTAB IS
010988,000043: # PLACED THE LOCATION OF A DP REGISTER THAT CONTAINS THE DELTA TIME THAT LONGCALL HAD BEEN ORIGINALLY STARTED
010989,000044: # WITH. EXAMPLE,
010990,000045:
010991,000046: # 3.6SPOT GENADR DELTAT
010992,000047: # -GENADR LONGTASK
010993,000048: # BBCON LONGTASK
010994,000049:
010995,000050: # OCT 31000
010996,000051: # 2CADR JOBAGAIN
010997,000052:
010998,000053: # THIS WOULD START UP LONGTASK AT THE APPROPRIATE TIME, OR IMMEDIATELY IF THE TIME HAD ALREADY PASSED. IT SHOULD
010999,000054: # BE NOTED THAT IF DELTAT IS IN A SWITCHED E BANK, THIS INFORMATOIN SHOULD BE IN THE BBCON OFTHE 2CADR OF THE
011000,000055: # TASK. FROM ABOVE, WE SEE THAT THE SECOND PART OF THIS PHASE WOULD BE STARTED AS A JOB WITH A PRIORITY OF 31.
011001,000056:
011002,000057: # WAITLIST CALLS ARE IDENTIFIED BY THE FACT THAT THEIR 2CADR IS STORED NEGATIVELY. IF PRDTTAB OF THE PHASE SPOT
011003,000058: # IS POSITIVE, THEN IT CONTAINS THE DELTA TIME, IF PRDTTAB IS NEGATIVE THEN IT IS THE -GENADR OF AN ERASABLE
011004,000059: # LOCATION CONTAINING THE DELTA TIME, THAT IS, THE TIME IS STORED INDIRECTLY. IT SHOULD BE NOTED AS ABOVE, THAT
011005,000060: # IF THE TIME IS STORED INDIRECTLY, THE BBCON MUST CONTAIN THE NECESSARY E BANK INFORMATION IF APPLICABLE. WITH
011006,000061: # WAITLIST WE HAVE ONE FURTHER OPTION, IF -0 IS STORED IN PRDTTAB, IT WILL CAUSE AN IMMEDIATE RESTART OF THE
011007,000062: # TASK. EXAMPLES,
011008,000063:
011009,000064: # OCT 77777 THIS WILL CAUSE AN IMMEDIATE RESTART
011010,000065: # -2CADR ATASK OF THE TASK :ATASK:
011011,000066:
011012,000067: # DEC 200 IF THE TIME OF THE 2 SECONDS SINCE DUMMY
011013,000068: # -2CADR DUMMY WAS PUT ON WAITLIST IS UP, IT WILL BEGIN
011014,000069: # IN 10 MS, OTHERWISE IT WILL BEGIN WHEN
011015,000070: # IT NORMALLY WOULD HAVE BEGUN.
011016,000071:
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011018,000073: # -GENADR DTIME WHERE DTIME CONTAINS THE DELTA TIME
011019,000074: # -2CADR TASKTASK OTHERWISE THIS IS AS ABOVE
011020,000075:
011021,000076: # ***** NOW THE TABLES THEMSELVES *****
011022,000077:
011023,000078: 01,2002 BANK 01
011024,000079: 01,2000 SETLOC RESTART
011025,000080: 01,2000 BANK
011026,000081:
011027,000082: 01,2002 PRDTTAB EQUALS 12000 # USED TO FIND THE PRIORITY OR DELTATIME
011028,000083: 01,2002 CADRTAB EQUALS 12001 # THIS AND THE NEXT RELATIVE LOC CONTAIN
011029,000084: # RESTART 2CADR
011030,000085:
011031,000086: 01,2002 COUNT* $$/RSTAB # TABLES IN BANK 1.
011032,000087: 01,2002 00010 SIZETAB TC 1.2SPOT -12006
011033,000088: 01,2003 00020 TC 1.3SPOT -12004
011034,000089: 01,2004 00010 TC 2.2SPOT -12006
011035,000090: 01,2005 00023 TC 2.3SPOT -12004
011036,000091: 01,2006 00010 TC 3.2SPOT -12006
011037,000092: 01,2007 00053 TC 3.3SPOT -12004
011038,000093: 01,2010 00054 TC 4.2SPOT -12006
011039,000094: 01,2011 00064 TC 4.3SPOT -12004
011040,000095: 01,2012 00137 TC 5.2SPOT -12006
011041,000096: 01,2013 00155 TC 5.3SPOT -12004
011042,000097: 01,2014 00010 TC 6.2SPOT -12006
011043,000098: 01,2015 00166 TC 6.3SPOT -12004
011044,000099: 01,2016 21000 1.2SPOT OCT 21000 # A DUMMY EXAMPLE TO BE REPLACED AS SOON
011045,000100: 01,2017 0074 EBANK= STATE
011046,000101: 01,2017 05155 04060 2CADR ENDOFJOB # AS THERE IS A LEGITIMATE 1.2SPOT
011047,000102: 01,2021 00144 DEC 100 B-14
011048,000103: 01,2022 0074 EBANK= STATE
011049,000104: 01,2022 05261 04060 2CADR TASKOVER
011050,000105:
011051,000106: # ANY MORE GROUP 1.EVEN RESTART VALUES SHOULD GO HERE
011052,000107:
011053,000108: 01,2024 76302 1.3SPOT -GENADR SAVET-30
011054,000109: 01,2025 E7,1513 EBANK= DVCNTR
011055,000110: 01,2025 75440 03710 -2CADR ULLGTASK
011056,000111: # ANY MORE GROUP 1.ODD RESTART VALUES SHOULD GO HERE
011057,000112:
011058,000113: 01,2027 01,2016 2.2SPOT EQUALS 1.2SPOT
011059,000114: # ANY MORE GROUP 2.EVEN RESTART VALUES SHOULD GO HERE
011060,000115:
011061,000116: 01,2027 02630 2.3SPOT GENADR 600SECS
011062,000117: 01,2030 75173 -GENADR STATEINT
011063,000118: 01,2031 E3,1554 EBANK= RRECTCSM
011064,000119: 01,2031 26063 BBCON STATEINT
011065,000120:
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011067,000122: 01,2032 05000 2.5SPOT OCT 05000
011068,000123: 01,2033 E3,1554 EBANK= RRECTCSM
011069,000124: 01,2033 02613 26063 2CADR STATINT1
011070,000125: 01,2035 02734 2.7SPOT DEC 1500 B-14
011071,000126: 01,2036 E7,1454 EBANK= LOSCOUNT
011072,000127: 01,2036 75502 27710 -2CADR P20LEMC1
011073,000128:
011074,000129: 01,2040 14000 2.11SPOT OCT 14000
011075,000130: 01,2041 E7,1756 EBANK= P21TIME
011076,000131: 01,2041 02441 50067 2CADR P25LEM1
011077,000132: 01,2043 10000 2.13SPOT OCT 10000
011078,000133: 01,2044 E7,1454 EBANK= LOSCOUNT
011079,000134: 01,2044 02175 54067 2CADR RELINUS
011080,000135: 01,2046 26000 2.15SPOT OCT 26000
011081,000136: 01,2047 E7,1454 EBANK= LOSCOUNT
011082,000137: 01,2047 02677 50067 2CADR R22RSTRT
011083,000138: 01,2051 77777 2.17SPOT OCT 77777
011084,000139: 01,2052 E7,1704 EBANK= VGPREV
011085,000140: 01,2052 75447 03710 -2CADR REDO2.17
011086,000141: 01,2054 00031 2.21SPOT DEC 25 B-14
011087,000142: 01,2055 E7,1513 EBANK= DVCNTR
011088,000143: 01,2055 75675 35710 -2CADR R10,R11
011089,000144: # ANY MORE GROUP 2.ODD RESTART VALUES SHOULD GO HERE.
011090,000145:
011091,000146: 01,2057 01,2016 3.2SPOT EQUALS 1.2SPOT
011092,000147: # ANY MORE GROUP 3.EVEN RESTART VALUES SHOULD GO HERE
011093,000148:
011094,000149: 01,2057 76353 3.3SPOT -GENADR ZOOMTIME
011095,000150: 01,2060 E7,1513 EBANK= DVCNTR
011096,000151: 01,2060 75223 03710 -2CADR ZOOM
011097,000152: # ANY MORE GROUP 3.ODD RESTART VALUES SHOULD GO HERE
011098,000153:
011099,000154: 01,2062 04704 4.2SPOT DEC 2500 B-14
011100,000155: 01,2063 E7,1451 EBANK= TTOGO
011101,000156: 01,2063 75434 03710 -2CADR TIG-5
011102,000157: 01,2065 77777 OCT 77777
011103,000158: 01,2066 E7,1451 EBANK= TTOGO
011104,000159: 01,2066 75444 03710 -2CADR REDO4.2
011105,000160: # ANY MORE GROUP 4.EVEN RESTART VALUES SHOULD GO HERE
011106,000161:
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011108,000163: 01,2070 25000 4.3SPOT OCT 25000
011109,000164: 01,2071 E7,1513 EBANK= DVCNTR
011110,000165: 01,2071 03257 64067 2CADR GOABORT
011111,000166: 01,2073 00062 4.5SPOT DEC 50 B-14
011112,000167: 01,2074 E7,1451 EBANK= TTOGO
011113,000168: 01,2074 75237 03710 -2CADR ULLAGOFF
011114,000169: 01,2076 00764 4.7SPOT DEC 500 B-14
011115,000170: 01,2077 E7,1513 EBANK= DVCNTR
011116,000171: 01,2077 75410 03710 -2CADR TIG-0
011117,000172: 01,2101 76262 4.11SPOT -GENADR TGO +1
011118,000173: 01,2102 E7,1513 EBANK= DVCNTR
011119,000174: 01,2102 74235 03710 -2CADR ENGOFTSK
011120,000175: 01,2104 12000 4.13SPOT OCT 12000
011121,000176: 01,2105 E7,1460 EBANK= TRKMKCNT
011122,000177: 01,2105 03223 74067 2CADR POSTBURN
011123,000178:
011124,000179: 01,2107 00764 4.15SPOT DEC 500 B-14
011125,000180: 01,2110 E7,1451 EBANK= TTOGO
011126,000181: 01,2110 75503 03710 -2CADR TIG-30
011127,000182: 01,2112 77777 4.17SPOT OCT 77777
011128,000183: 01,2113 E7,1513 EBANK= DVCNTR
011129,000184: 01,2113 75434 03710 -2CADR TIG-5
011130,000185: 01,2115 13000 4.21SPOT OCT 13000
011131,000186: 01,2116 E5,1730 EBANK= STAR
011132,000187: 01,2116 02661 30065 2CADR R51.1 +1
011133,000188: 01,2120 77777 4.23SPOT OCT 77777
011134,000189: 01,2121 E7,1513 EBANK= DVCNTR
011135,000190: 01,2121 75366 03710 -2CADR IGNITION
011136,000191: 01,2123 01475 4.25SPOT GENADR SAVET-30
011137,000192: 01,2124 75541 -GENADR TIG-35
011138,000193: 01,2125 E7,1475 EBANK= SAVET-30
011139,000194: 01,2125 74067 BBCON TIG-35
011140,000195:
011141,000196: 01,2126 52777 4.27SPOT OCT 52777
011142,000197: 01,2127 E7,1513 EBANK= DVCNTR
011143,000198: 01,2127 02167 42067 2CADR P70A
011144,000199: 01,2131 52777 4.31SPOT OCT 52777
011145,000200: 01,2132 E7,1513 EBANK= DVCNTR
011146,000201: 01,2132 02172 42067 2CADR P71A
011147,000202:
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011149,000204: 01,2134 46777 4.33SPOT OCT 46777
011150,000205: 01,2135 E7,1513 EBANK= DVCNTR
011151,000206: 01,2135 02024 10067 2CADR GOPOOFIX
011152,000207: 01,2137 46777 4.35SPOT OCT 46777
011153,000208: 01,2140 E7,1513 EBANK= DVCNTR
011154,000209: 01,2140 05665 04067 2CADR GOPOODOO
011155,000210: 01,2142 52777 4.37SPOT OCT 52777
011156,000211: 01,2143 E7,1453 EBANK= WHICH
011157,000212: 01,2143 02574 74067 2CADR COMFAIL
011158,000213: # ANY MORE 4.ODD RESTART VALUES SHOULD GO HERE.
011159,000214:
011160,000215: 01,2145 22000 5.2SPOT OCT 22000
011161,000216: 01,2146 E7,1513 EBANK= DVCNTR
011162,000217: 01,2146 02421 66067 2CADR NORMLIZE
011163,000218: 01,2150 00310 DEC 200 B-14
011164,000219: 01,2151 E7,1513 EBANK= DVCNTR
011165,000220: 01,2151 74177 01710 -2CADR REREADAC
011166,000221:
011167,000222: 01,2153 00310 5.4SPOT DEC 200 B-14
011168,000223: 01,2154 E7,1513 EBANK= DVCNTR
011169,000224: 01,2154 74177 01710 -2CADR REREADAC
011170,000225:
011171,000226: 01,2156 20000 OCT 20000
011172,000227: 01,2157 E7,1513 EBANK= DVCNTR
011173,000228: 01,2157 02200 66067 2CADR SERVICER
011174,000229: # ANY MORE GROUP 5.EVEN RESTART VALUES SHOULD GO HERE
011175,000230:
011176,000231: 01,2161 00310 5.3SPOT DEC 200 B-14
011177,000232: 01,2162 E7,1513 EBANK= DVCNTR
011178,000233: 01,2162 74177 01710 -2CADR REREADAC
011179,000234:
011180,000235: 01,2164 77777 5.5SPOT OCT 77777
011181,000236: 01,2165 E7,1513 EBANK= DVCNTR
011182,000237: 01,2165 74340 01710 -2CADR REDO5.5
011183,000238:
011184,000239: 01,2167 77777 5.7SPOT OCT 77777
011185,000240: 01,2170 E7,1513 EBANK= DVCNTR
011186,000241: 01,2170 74375 01710 -2CADR BIBIBIAS
011187,000242: # ANY MORE GROUP 5.ODD RESTART VALUES SHOULD GO HERE
011188,000243:
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011190,000245: 01,2172 01,2016 6.2SPOT EQUALS 1.2SPOT
011191,000246: 01,2172 00144 6.3SPOT DEC 100 B-14
011192,000247: 01,2173 E7,1437 EBANK= TIG
011193,000248: 01,2173 75055 03710 -2CADR CLOKTASK
011194,000249: 01,2175 30000 6.5SPOT OCT 30000 # PROTECT INCREMENTING OF TIME2,TIME1 BY
011195,000250: 01,2176 E3,1706 EBANK= TEPHEM # P27(UPDATE PROGRAM) VIA V70 OR V73.
011196,000251: 01,2176 03522 10063 2CADR TIMEDIDR
011197,000252: 01,2200 17000 6.7SPOT OCT 17000
011198,000253: 01,2201 E7,1704 EBANK= VGPREV
011199,000254: 01,2201 03350 74067 2CADR REDO6.7
End of include-file RESTART_TABLES.agc. Parent file is MAIN.agc