Source Code
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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. |
022463,000002: # Copyright: Public domain.
022464,000003: # Filename: P76.agc
022465,000004: # Purpose: Part of the source code for Artemis (i.e., Colossus 3),
022466,000005: # build 072. This is for the Command Module's (CM)
022467,000006: # Apollo Guidance Computer (AGC), we believe for
022468,000007: # Apollo 15-17.
022469,000008: # Assembler: yaYUL
022470,000009: # Contact: Hartmuth Gutsche <hgutsche@xplornet.com>
022471,000010: # Website: www.ibiblio.org/apollo/index.html
022472,000011: # Page scans: www.ibiblio.org/apollo/ScansForConversion/Artemis072/
022473,000012: # Mod history: 2009-09-20 HG Adapted from corresponding Comanche 055 file.
022474,000013: # 2009-09-21 JL Fixed minor typos.
022475,000014: # 2010-01-31 JL Fixed build errors.
022476,000015: # 2010-02-20 RSB Un-##'d this header.
022477,000016:
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Page 513 |
022479,000018: # 1) PROGRAM NAME - TARGET DELTA V PROGRAM (P76).
022480,000019: # 2) FUNCTIONAL DESCRIPTION - UPON ENTRY BY ASTRONAUT ACTION, P76 FLASHES DSKY REQUESTS TO THE ASTRONAUT
022481,000020: # TO PROVIDE VIA DSKY (1) THE DELTA V TO BE APPLIED TO THE OTHER VEHICLE STATE VECTOR AND (2) THE
022482,000021: # TIME (TIG) AT WHICH THE OTHER VEHICLE VELOCITY WAS CHANGED BY EXECUTION OF A THRUSTING MANEUVER. THE
022483,000022: # OTHER VEHICLE STATE VECTOR IS INTEGRATED TO TIG AND UPDATED BY THE ADDITION OF DELTA V (DELTA V HAVING
022484,000023: # BEEN TRANSFORMED FROM LV TO REF COSYS). USING INTEGRVS, THE PROGRAM THEN INTEGRATES THE OTHER
022485,000024: # VEHICLE STATE VECTOR TO THE STATE VECTOR OF THIS VEHICLE, THUS INSURING THAT THE W-MATRIX AND BOTH VEHICLE
022486,000025: # STATES CORRESPOND TO THE SAME TIME.
022487,000026: # 3) ERASABLE INITIALIZATION REQUIRED - NONE.
022488,000027: # 4) CALLING SEQUENCES AND EXIT MODES - CALLED BY ASTRONAUT REQUEST THRU DSKY V 37 E 76 E.
022489,000028: # EXITS BY TCF ENDOFJOB.
022490,000029: # 5) OUTPUT - OTHER VEHICLE STATE VECTOR INTEGRATED TO TIG AND INCREMENTED BY DELTA V IN REF COSYS.
022491,000030: # THE PUSHLIST CONTAINS THE MATRIX BY WHICH THE INPUT DELTA V MUST BE POST-MULTIPLIED TO CONVERT FROM LV
022492,000031: # TO REF COSYS.
022493,000032: # 6) DEBRIS - OTHER VEHICLE STATE VECTOR.
022494,000033: # 7) SUBROUTINES CALLED - BANKCALL,GOXDSPF,CSMPREC (OR LEMPREC),ATOPCSM (OR ATOPLEM),INTSTALL,INTWAKE, PHASCHNG
022495,000034: # INTPRET, INTEGRVS, AND MINIRECT.
022496,000035: # 8) FLAG USE - MOONFLAG,CMOONFLG,INTYPFLG,RASFLAG, AND MARKCTR.
022497,000036:
022498,000037: 13,2000 SETLOC P76LOC
022499,000038: 13,2000 BANK
022500,000039:
022501,000040: 13,2071 COUNT* $$/P7677
022502,000041: 13,2071 E7,1412 EBANK= TIG
022503,000042:
022504,000043: 13,2071 31214 P76ER77 CA MODREG
022505,000044: 13,2072 74770 MASK BIT1
022506,000045: 13,2073 55545 TS OPTFLAG # OPTFLAG = 0 LM (P76)
022507,000046: 13,2074 00006 EXTEND # = 1 CSM (P77)
022508,000047: 13,2075 31450 DCA NOMTIG
022509,000048: 13,2076 53413 DXCH TIG
022510,000049:
022511,000050: 13,2077 35026 CAF V06N33
022512,000051: 13,2100 04636 TC BANKCALL # AND WAIT FOR KEYBOARD ACTION.
022513,000052: 13,2101 20743 CADR GOFLASH
022514,000053: 13,2102 12234 TCF ENDP76
022515,000054: 13,2103 02105 TC +2 # PROCEED
022516,000055: 13,2104 02077 TC -5 # STORE DATA AND REPEAT FLASHING
022517,000056: 13,2105 05402 TC PHASCHNG
022518,000057: 13,2106 04024 OCT 04024
022519,000058: 13,2107 51545 INDEX OPTFLAG
022520,000059: 13,2110 32237 CAF V06N84 # FLASH V06 N84 OR N81
022521,000060: 13,2111 04636 TC BANKCALL # AND WAIT FOR KEYBOARD ACTION.
022522,000061: 13,2112 20743 CADR GOFLASH
022523,000062: 13,2113 12234 TCF ENDP76
022524,000063: 13,2114 02116 TC +2
022525,000064: 13,2115 02107 TC -6 # STORE DATA AND REPEAT FLASHING
022526,000065: 13,2116 06006 TC INTPRET # RETURN TO INTERPRETIVE CODE
022527,000066: 13,2117 43145 DLOAD SET # SET D(MPAC)=TIG IN CSEC B28
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Page 514 |
022529,000068: 13,2120 03413 TIG
022530,000069: 13,2121 01076 NODOFLAG # DISALLOW V37
022531,000070: 13,2122 00041 STORE TDEC1
022532,000071: 13,2123 77711 CCALL
022533,000072: 13,2124 03546 OPTFLAG
022534,000073: 13,2125 26241 INTADR
022535,000074: 13,2126 53575 COMPMAT VLOAD UNIT
022536,000075: 13,2127 00001 RATT
022537,000076: 13,2130 77676 VCOMP # U(-R)
022538,000077: 13,2131 00031 STORE 24D # U(-R) TO 24D
022539,000078: 13,2132 53435 VXV UNIT # U(-R)XV = U(VXR)
022540,000079: 13,2133 00007 VATT
022541,000080: 13,2134 00023 STORE 18D
022542,000081: 13,2135 53435 VXV UNIT # U(VXR)XU(-R) = U((RXV)XR)
022543,000082: 13,2136 00031 24D
022544,000083: 13,2137 00015 STORE 12D
022545,000084: 13,2140 46135 SLOAD BHIZ
022546,000085: 13,2141 03546 OPTFLAG
022547,000086: 13,2142 26146 +4
022548,000087: 13,2143 52175 VLOAD GOTO
022549,000088: 13,2144 03405 DELVLVC # FROM CSM
022550,000089: 13,2145 26150 DVTRANS
022551,000090: 13,2146 77775 VLOAD
022552,000091: 13,2147 03540 DELVOV # FROM LM
022553,000092: 13,2150 76505 DVTRANS VXM VSL1 # V(MPAC)=DELTA-V IN REFCOSYS
022554,000093: 13,2151 00015 12D
022555,000094: 13,2152 77655 VAD
022556,000095: 13,2153 00007 VATT
022557,000096: 13,2154 00007 STORE 6 # V(PD6)=VATT + DELTA V
022558,000097: 13,2155 77624 CALL # PREVENT WOULD-BE USER OF ORBITAL
022559,000098: 13,2156 27516 INTSTALL # INTEG FROM INTERFERING WITH UPDATING
022560,000099: 13,2157 77624 CALL
022561,000100: 13,2160 26245 P76SUB1
022562,000101: 13,2161 53775 VLOAD VSR*
022563,000102: 13,2162 00007 6
022564,000103: 13,2163 57176 0,2
022565,000104: 13,2164 25543 STOVL VCV
022566,000105: 13,2165 00001 RATT
022567,000106: 13,2166 77657 VSR*
022568,000107: 13,2167 57176 0,2
022569,000108: 13,2170 15535 STODL RCV
022570,000109: 13,2171 03413 TIG
022571,000110: 13,2172 01517 STORE TET
022572,000111: 13,2173 71214 CLEAR DLOAD
022573,000112: 13,2174 01673 INTYPFLG
022574,000113: 13,2175 01571 TETTHIS
022575,000114: 13,2176 34041 INTOTHIS STCALL TDEC1
022576,000115: 13,2177 27211 INTEGRVS
022577,000116: 13,2200 77624 CALL
022578,000117: 13,2201 27516 INTSTALL
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022580,000119: 13,2202 77624 CALL
022581,000120: 13,2203 26245 P76SUB1 # SET/CLEAR MOONFLAG
022582,000121: 13,2204 77775 VLOAD
022583,000122: 13,2205 00017 RATT1
022584,000123: 13,2206 01503 STORE RRECT
022585,000124: 13,2207 15535 STODL RCV
022586,000125: 13,2210 00015 TAT
022587,000126: 13,2211 25517 STOVL TET
022588,000127: 13,2212 00025 VATT1
022589,000128: 13,2213 77624 CALL
022590,000129: 13,2214 23434 MINIRECT
022591,000130: 13,2215 77776 EXIT
022592,000131: 13,2216 05402 TC PHASCHNG
022593,000132: 13,2217 04024 OCT 04024
022594,000133:
022595,000134: 13,2220 06006 TC INTPRET
022596,000135: 13,2221 62214 SET CCALL
022597,000136: 13,2222 05062 REINTFLG
022598,000137: 13,2223 03546 OPTFLAG
022599,000138: 13,2224 26243 UPDATADR
022600,000139: 13,2225 77624 CALL
022601,000140: 13,2226 27525 INTWAKE0 # PERMIT USE OF ORBITAL INTEGRATION
022602,000141: 13,2227 77414 OUT CLEAR EXIT # ALLOW V37, NO NEED TO CLEAR NODOFLAG AT
022603,000142: 13,2230 01276 NODOFLAG # ENDP76 SINCE FLAG NOT SET WHEN DISPLAY
022604,000143: # RESPONSES TRANSFER THERE FROM P76+.
022605,000144: 13,2231 37702 CAF NEGONE
022606,000145: 13,2232 55722 TS MRKBUF1
022607,000146: 13,2233 14105 TCF MNKGOPOO
022608,000147:
022609,000148: 13,2234 37702 ENDP76 CAF NEGONE
022610,000149: 13,2235 55722 TS MRKBUF1 # INVALIDATE MARK BUFFER
022611,000150:
022612,000151: 13,2236 14103 TCF GOTOPOOH
022613,000152:
022614,000153: 13,2237 01524 V06N84 NV 0684
022615,000154: 13,2240 01521 NV 0681 # MUST BE EQUAL TO V06N84 + 1
022616,000155: 13,2241 27161 INTADR CADR OTHPREC
022617,000156: 13,2242 27145 CADR THISPREC # MUST BE EQUAL TO INTADR + 1
022618,000157: 13,2243 27034 UPDATADR CADR ATOPOTH
022619,000158: 13,2244 26761 CADR ATOPTHIS # MUST BE EQUAL TO UPDATADR + 1
022620,000159: 13,2245 67214 P76SUB1 CLEAR SLOAD
022621,000160: 13,2246 00263 MOONFLAG
022622,000161: 13,2247 00050 X2
022623,000162: 13,2250 43030 BHIZ SET # X2=0...CLEAR MOONFLAG
022624,000163: 13,2251 26253 +2 # =2.....SET MOONFLAG
022625,000164: 13,2252 00063 MOONFLAG
022626,000165: 13,2253 77616 RVQ
End of include-file P76.agc. Parent file is MAIN.agc