Source Code
![]() |
These source-code files were obtained by digitally photographing
an Artemis 72 program listing from a private collection and then
modifying pre-existing Comanche 55 (Apollo 11) source files to
incorporate changes. Note that the page images
presented online are of reduced quality, and that additional images
may be available. Report any conversion errors or legibility
problems in page images to info@sandroid.org.
Notations on the program listing read, in part:GAP: ASSEMBLE REVISION 072 OF AGC PROGRAM ARTEMIS BY NASA 2021114-011 11:40 FEB. 26, 1971 THIS AGC PROGRAM SHALL ALSO BE REFERRED TO AS COLOSSUS 3 THIS PROGRAM IS INTENDED FOR USE IN THE CM AS SPECIFIED IN REPORT R-577. THIS PROGRAM WAS PREPARED UNDER OSR PROJECT 55-23890, SPONSORED BY THE MANNED SPACECRAFT CENTER OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION THROUGH CONTRACT NAS 9-4065 WITH THE CHARLES STARK DRAPER LABORATORY, MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE, MASS. |
022435,000002: # Copyright: Public domain.
022436,000003: # Filename: P76.agc
022437,000004: # Purpose: Part of the source code for Artemis (i.e., Colossus 3),
022438,000005: # build 072. This is for the Command Module's (CM)
022439,000006: # Apollo Guidance Computer (AGC), we believe for
022440,000007: # Apollo 15-17.
022441,000008: # Assembler: yaYUL
022442,000009: # Contact: Hartmuth Gutsche <hgutsche@xplornet.com>
022443,000010: # Website: www.ibiblio.org/apollo/index.html
022444,000011: # Page scans: www.ibiblio.org/apollo/ScansForConversion/Artemis072/
022445,000012: # Mod history: 2009-09-20 HG Adapted from corresponding Comanche 055 file.
022446,000013: # 2009-09-21 JL Fixed minor typos.
022447,000014: # 2010-01-31 JL Fixed build errors.
022448,000015: # 2010-02-20 RSB Un-##'d this header.
022449,000016:
022450,000017: # # Page 513
022451,000018: # 1) PROGRAM NAME - TARGET DELTA V PROGRAM (P76).
022452,000019: # 2) FUNCTIONAL DESCRIPTION - UPON ENTRY BY ASTRONAUT ACTION, P76 FLASHES DSKY REQUESTS TO THE ASTRONAUT
022453,000020: # TO PROVIDE VIA DSKY (1) THE DELTA V TO BE APPLIED TO THE OTHER VEHICLE STATE VECTOR AND (2) THE
022454,000021: # TIME (TIG) AT WHICH THE OTHER VEHICLE VELOCITY WAS CHANGED BY EXECUTION OF A THRUSTING MANEUVER. THE
022455,000022: # OTHER VEHICLE STATE VECTOR IS INTEGRATED TO TIG AND UPDATED BY THE ADDITION OF DELTA V (DELTA V HAVING
022456,000023: # BEEN TRANSFORMED FROM LV TO REF COSYS). USING INTEGRVS, THE PROGRAM THEN INTEGRATES THE OTHER
022457,000024: # VEHICLE STATE VECTOR TO THE STATE VECTOR OF THIS VEHICLE, THUS INSURING THAT THE W-MATRIX AND BOTH VEHICLE
022458,000025: # STATES CORRESPOND TO THE SAME TIME.
022459,000026: # 3) ERASABLE INITIALIZATION REQUIRED - NONE.
022460,000027: # 4) CALLING SEQUENCES AND EXIT MODES - CALLED BY ASTRONAUT REQUEST THRU DSKY V 37 E 76 E.
022461,000028: # EXITS BY TCF ENDOFJOB.
022462,000029: # 5) OUTPUT - OTHER VEHICLE STATE VECTOR INTEGRATED TO TIG AND INCREMENTED BY DELTA V IN REF COSYS.
022463,000030: # THE PUSHLIST CONTAINS THE MATRIX BY WHICH THE INPUT DELTA V MUST BE POST-MULTIPLIED TO CONVERT FROM LV
022464,000031: # TO REF COSYS.
022465,000032: # 6) DEBRIS - OTHER VEHICLE STATE VECTOR.
022466,000033: # 7) SUBROUTINES CALLED - BANKCALL,GOXDSPF,CSMPREC (OR LEMPREC),ATOPCSM (OR ATOPLEM),INTSTALL,INTWAKE, PHASCHNG
022467,000034: # INTPRET, INTEGRVS, AND MINIRECT.
022468,000035: # 8) FLAG USE - MOONFLAG,CMOONFLG,INTYPFLG,RASFLAG, AND MARKCTR.
022469,000036:
022470,000037: 13,2000 SETLOC P76LOC
022471,000038: 13,2000 BANK
022472,000039:
022473,000040: 13,2071 COUNT* $$/P7677
022474,000041: 13,2071 E7,1412 EBANK= TIG
022475,000042:
022476,000043: 13,2071 31214 P76ER77 CA MODREG
022477,000044: 13,2072 74770 MASK BIT1
022478,000045: 13,2073 55545 TS OPTFLAG # OPTFLAG = 0 LM (P76)
022479,000046: 13,2074 00006 EXTEND # = 1 CSM (P77)
022480,000047: 13,2075 31450 DCA NOMTIG
022481,000048: 13,2076 53413 DXCH TIG
022482,000049:
022483,000050: 13,2077 35026 CAF V06N33
022484,000051: 13,2100 04636 TC BANKCALL # AND WAIT FOR KEYBOARD ACTION.
022485,000052: 13,2101 20743 CADR GOFLASH
022486,000053: 13,2102 12234 TCF ENDP76
022487,000054: 13,2103 02105 TC +2 # PROCEED
022488,000055: 13,2104 02077 TC -5 # STORE DATA AND REPEAT FLASHING
022489,000056: 13,2105 05402 TC PHASCHNG
022490,000057: 13,2106 04024 OCT 04024
022491,000058: 13,2107 51545 INDEX OPTFLAG
022492,000059: 13,2110 32237 CAF V06N84 # FLASH V06 N84 OR N81
022493,000060: 13,2111 04636 TC BANKCALL # AND WAIT FOR KEYBOARD ACTION.
022494,000061: 13,2112 20743 CADR GOFLASH
022495,000062: 13,2113 12234 TCF ENDP76
022496,000063: 13,2114 02116 TC +2
022497,000064: 13,2115 02107 TC -6 # STORE DATA AND REPEAT FLASHING
022498,000065: 13,2116 06006 TC INTPRET # RETURN TO INTERPRETIVE CODE
022499,000066: 13,2117 43145 DLOAD SET # SET D(MPAC)=TIG IN CSEC B28
022500,000067: # # Page 514
022501,000068: 13,2120 03413 TIG
022502,000069: 13,2121 01076 NODOFLAG # DISALLOW V37
022503,000070: 13,2122 00041 STORE TDEC1
022504,000071: 13,2123 77711 CCALL
022505,000072: 13,2124 03546 OPTFLAG
022506,000073: 13,2125 26241 INTADR
022507,000074: 13,2126 53575 COMPMAT VLOAD UNIT
022508,000075: 13,2127 00001 RATT
022509,000076: 13,2130 77676 VCOMP # U(-R)
022510,000077: 13,2131 00031 STORE 24D # U(-R) TO 24D
022511,000078: 13,2132 53435 VXV UNIT # U(-R)XV = U(VXR)
022512,000079: 13,2133 00007 VATT
022513,000080: 13,2134 00023 STORE 18D
022514,000081: 13,2135 53435 VXV UNIT # U(VXR)XU(-R) = U((RXV)XR)
022515,000082: 13,2136 00031 24D
022516,000083: 13,2137 00015 STORE 12D
022517,000084: 13,2140 46135 SLOAD BHIZ
022518,000085: 13,2141 03546 OPTFLAG
022519,000086: 13,2142 26146 +4
022520,000087: 13,2143 52175 VLOAD GOTO
022521,000088: 13,2144 03405 DELVLVC # FROM CSM
022522,000089: 13,2145 26150 DVTRANS
022523,000090: 13,2146 77775 VLOAD
022524,000091: 13,2147 03540 DELVOV # FROM LM
022525,000092: 13,2150 76505 DVTRANS VXM VSL1 # V(MPAC)=DELTA-V IN REFCOSYS
022526,000093: 13,2151 00015 12D
022527,000094: 13,2152 77655 VAD
022528,000095: 13,2153 00007 VATT
022529,000096: 13,2154 00007 STORE 6 # V(PD6)=VATT + DELTA V
022530,000097: 13,2155 77624 CALL # PREVENT WOULD-BE USER OF ORBITAL
022531,000098: 13,2156 27516 INTSTALL # INTEG FROM INTERFERING WITH UPDATING
022532,000099: 13,2157 77624 CALL
022533,000100: 13,2160 26245 P76SUB1
022534,000101: 13,2161 53775 VLOAD VSR*
022535,000102: 13,2162 00007 6
022536,000103: 13,2163 57176 0,2
022537,000104: 13,2164 25543 STOVL VCV
022538,000105: 13,2165 00001 RATT
022539,000106: 13,2166 77657 VSR*
022540,000107: 13,2167 57176 0,2
022541,000108: 13,2170 15535 STODL RCV
022542,000109: 13,2171 03413 TIG
022543,000110: 13,2172 01517 STORE TET
022544,000111: 13,2173 71214 CLEAR DLOAD
022545,000112: 13,2174 01673 INTYPFLG
022546,000113: 13,2175 01571 TETTHIS
022547,000114: 13,2176 34041 INTOTHIS STCALL TDEC1
022548,000115: 13,2177 27211 INTEGRVS
022549,000116: 13,2200 77624 CALL
022550,000117: 13,2201 27516 INTSTALL
022551,000118: # # Page 515
022552,000119: 13,2202 77624 CALL
022553,000120: 13,2203 26245 P76SUB1 # SET/CLEAR MOONFLAG
022554,000121: 13,2204 77775 VLOAD
022555,000122: 13,2205 00017 RATT1
022556,000123: 13,2206 01503 STORE RRECT
022557,000124: 13,2207 15535 STODL RCV
022558,000125: 13,2210 00015 TAT
022559,000126: 13,2211 25517 STOVL TET
022560,000127: 13,2212 00025 VATT1
022561,000128: 13,2213 77624 CALL
022562,000129: 13,2214 23434 MINIRECT
022563,000130: 13,2215 77776 EXIT
022564,000131: 13,2216 05402 TC PHASCHNG
022565,000132: 13,2217 04024 OCT 04024
022566,000133:
022567,000134: 13,2220 06006 TC INTPRET
022568,000135: 13,2221 62214 SET CCALL
022569,000136: 13,2222 05062 REINTFLG
022570,000137: 13,2223 03546 OPTFLAG
022571,000138: 13,2224 26243 UPDATADR
022572,000139: 13,2225 77624 CALL
022573,000140: 13,2226 27525 INTWAKE0 # PERMIT USE OF ORBITAL INTEGRATION
022574,000141: 13,2227 77414 OUT CLEAR EXIT # ALLOW V37, NO NEED TO CLEAR NODOFLAG AT
022575,000142: 13,2230 01276 NODOFLAG # ENDP76 SINCE FLAG NOT SET WHEN DISPLAY
022576,000143: # RESPONSES TRANSFER THERE FROM P76+.
022577,000144: 13,2231 37702 CAF NEGONE
022578,000145: 13,2232 55722 TS MRKBUF1
022579,000146: 13,2233 14105 TCF MNKGOPOO
022580,000147:
022581,000148: 13,2234 37702 ENDP76 CAF NEGONE
022582,000149: 13,2235 55722 TS MRKBUF1 # INVALIDATE MARK BUFFER
022583,000150:
022584,000151: 13,2236 14103 TCF GOTOPOOH
022585,000152:
022586,000153: 13,2237 01524 V06N84 NV 0684
022587,000154: 13,2240 01521 NV 0681 # MUST BE EQUAL TO V06N84 + 1
022588,000155: 13,2241 27161 INTADR CADR OTHPREC
022589,000156: 13,2242 27145 CADR THISPREC # MUST BE EQUAL TO INTADR + 1
022590,000157: 13,2243 27034 UPDATADR CADR ATOPOTH
022591,000158: 13,2244 26761 CADR ATOPTHIS # MUST BE EQUAL TO UPDATADR + 1
022592,000159: 13,2245 67214 P76SUB1 CLEAR SLOAD
022593,000160: 13,2246 00263 MOONFLAG
022594,000161: 13,2247 00050 X2
022595,000162: 13,2250 43030 BHIZ SET # X2=0...CLEAR MOONFLAG
022596,000163: 13,2251 26253 +2 # =2.....SET MOONFLAG
022597,000164: 13,2252 00063 MOONFLAG
022598,000165: 13,2253 77616 RVQ
End of include-file P76.agc. Parent file is MAIN.agc