Source Code

These source-code files are part of a reconstructed copy of Aurora 88, the final release of the Lunar Module (LM) Apollo Guidance Computer (AGC) system test software.

They have been created via disassembly of binary dumps of original core rope memory modules, part numbers 2003972-011, 2003972-091, and 2003972-111, belonging to Steve Jurvetson.

Since only binary dumps (rather than listings) of Aurora 88 are available as source material, all comments and labels are approximate. They have been taken from other AGC programs where possible, or, in some places, written from scratch to match what we believe would have been in the original listing.

013701,000002:                                                                                                  ## Copyright:   Public domain.
013702,000003:                                                                                                  ## Filename:    DOWN-TELEMETRY_PROGRAM.agc
013703,000004:                                                                                                  ## Purpose:     A section of Aurora 88.
013704,000005:                                                                                                  ##              It is part of the reconstructed source code for the final
013705,000006:                                                                                                  ##              release of the Lunar Module system test software. No original
013706,000007:                                                                                                  ##              listings of this program are available; instead, this file
013707,000008:                                                                                                  ##              was created via disassembly of dumps of Aurora 88 core rope
013708,000009:                                                                                                  ##              modules and comparison with other AGC programs.
013709,000010:                                                                                                  ## Assembler:   yaYUL
013710,000011:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
013711,000012:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
013712,000013:                                                                                                  ## Mod history: 2023-06-30 MAS  Created from Aurora 12.
013713,000014:                                                                                                  ##              2023-07-12 MAS  Updated for Aurora 88.
013714,000015: 
013715,000016: 15,2000                                           BANK     15                                    
013716,000017: 15,2000  E7,1403                                  EBANK=   DNTMBUFF                              
013717,000018: 15,2000           00437        LOWIDCOD           OCT      00437                                 #  FOD'S CHOICE.
013718,000019:                                                                                                  #        SPECIAL DOWNLINK LIST FOR AGS INITIALIZATION, MUST BE IN LOCATION 2001 OF DOWNLINK FBANK,
013719,000020: 15,2001           00342        AGSLIST            ECADR    UPLOCK                                
013720,000021: 15,2002           00025                           ECADR    TIME1                                 
013721,000022: 15,2003           00024                           ECADR    TIME2                                 
013722,000023: 15,2004           00412                           ECADR    AGSWORD                               
013723,000024: 15,2005           03602                           ECADR    AGSBUFF    +27D                       
013724,000025: 15,2006           03601                           ECADR    AGSBUFF    +26D                       
013725,000026: 15,2007           03600                           ECADR    AGSBUFF    +25D                       
013726,000027: 15,2010           03577                           ECADR    AGSBUFF    +24D                       
013727,000028: 15,2011           00412                           ECADR    AGSWORD                               
013728,000029: 15,2012           03576                           ECADR    AGSBUFF    +23D                       
013729,000030: 15,2013           03575                           ECADR    AGSBUFF    +22D                       
013730,000031: 15,2014           03574                           ECADR    AGSBUFF    +21D                       
013731,000032: 15,2015           03573                           ECADR    AGSBUFF    +20D                       
013732,000033: 15,2016           00412                           ECADR    AGSWORD                               
013733,000034: 15,2017           03572                           ECADR    AGSBUFF    +19D                       
013734,000035: 15,2020           03571                           ECADR    AGSBUFF    +18D                       
013735,000036: 15,2021           03570                           ECADR    AGSBUFF    +17D                       
013736,000037: 15,2022           03567                           ECADR    AGSBUFF    +16D                       
013737,000038: 15,2023           00412                           ECADR    AGSWORD                               
013738,000039: 15,2024           03566                           ECADR    AGSBUFF    +15D                       
013739,000040: 15,2025           03565                           ECADR    AGSBUFF    +14D                       
013740,000041: 15,2026           03564                           ECADR    AGSBUFF    +13D                       
013741,000042: 15,2027           03563                           ECADR    AGSBUFF    +12D                       
013742,000043: 15,2030           00412                           ECADR    AGSWORD                               
013743,000044: 15,2031           03562                           ECADR    AGSBUFF    +11D                       
013744,000045: 15,2032           03561                           ECADR    AGSBUFF    +10D                       
013745,000046: 15,2033           01560                           ADRES    AGSBUFF    +9D                        
013746,000047: 15,2034           01557                           ADRES    AGSBUFF    +8D                        
013747,000048: 15,2035           00412                           ADRES    AGSWORD                               
013748,000049: 15,2036           01556                           ADRES    AGSBUFF    +7                         
013749,000050: 15,2037           01555                           ADRES    AGSBUFF    +6                         
013750,000051: 15,2040           01554                           ADRES    AGSBUFF    +5                         
013751,000052: 15,2041           01553                           ADRES    AGSBUFF    +4                         
013752,000053: 15,2042           00412                           ADRES    AGSWORD                               
013753,000054: 15,2043           01552                           ADRES    AGSBUFF    +3                         
013754,000055: 15,2044           01551                           ADRES    AGSBUFF    +2                         
013755,000056: 15,2045           01550                           ADRES    AGSBUFF    +1                         
013756,000057: 15,2046           01547                           ADRES    AGSBUFF                               
013757,000058:                                                                                                  #        THIS ROUTINE IS INITITATED EVERY 20MS BY AN INTERRUPT TRIGGERED
013758,000059:                                                                                                  #  BY THE RECEIPT OF AN ENDPULSE FROM THE SPACECRAFT TELEMETRY PROGRAMMER.
013759,000060: 
013760,000061: 15,2047           54016        DODOWNTM           TS       BANKRUPT                              #  DO APPROPRIATE TM PHASE.
013761,000062: 15,2050           51401                           INDEX    DNTMGOTO                              
013762,000063: 15,2051           10000                           TCF      0                                     
013763,000064: 
013764,000065: 15,2052           30411        DNPHASE1           CA       DNLSTADR                              #  ONCE PER CYCLE (1 SECOND), AN ID IS SENT
013765,000066: 15,2053           55400                           TS       LDATALST                              #  AND THE DATA LIST SWITCHED TO THAT
013766,000067: 15,2054           76426                           MASK     LOW10                                 #  SELECTED BY A MISSION OR TEST PROGRAM.
013767,000068: 15,2055           00006                           EXTEND                                         
013768,000069: 15,2056           01034                           WRITE    DNTM1                                 
013769,000070: 15,2057           47644                           CS       BIT7                                  #  WORD ORDER BIT IS 0 FOR ID OWRD ONLY.
013770,000071: 15,2060           00006                           EXTEND                                         
013771,000072: 15,2061           03013                           WAND     13                                    
013772,000073: 
013773,000074: 15,2062           32212                           CAF      LDNPHAS2                              #  SWITCH TO PHASE 2.
013774,000075: 15,2063           55401                           TS       DNTMGOTO                              
013775,000076: 15,2064           32000                           CAF      LOWIDCOD                              #  SPECIAL ID CODE IN L.
013776,000077: 15,2065           12151                           TCF      TMEXITL                               
013777,000078: 
013778,000079: 15,2066           37644        DNPHASE2           CAF      BIT7                                  #  SET WORD ORDER BACK TO 1 FOR REMAINDER
013779,000080: 15,2067           00006                           EXTEND                                         #  OF CYCLE AND SET UP TO PICK UP 12 PAIRS
013780,000081: 15,2070           05013                           WOR      13                                    #  FROM ANYWHERE IN COMMON ERASABLE OR E7.
013781,000082: 
013782,000083: 15,2071           37657                           CAF      ZERO                                  
013783,000084: 15,2072           54065                           TS       ITEMP1                                #  TAKE SNAPSHOT OF 12 DP WORDS.
013784,000085: 15,2073           37654                           CAF      TEN                                   
013785,000086: 
013786,000087: 15,2074           54066        LOOP               TS       ITEMP2                                #  THESE 12 DP WORDS ARE READ INTO AN
013787,000088: 15,2075           61400                           AD       LDATALST                              #  INTERMEDIATE BUFFER SO THEY REFER TO THE
013788,000089: 15,2076           00006                           EXTEND                                         #  SAME POINT IN THE EXECUTION OF A MISSION
013789,000090: 15,2077           50000                           INDEX    A                                     #  PROGRAM. THE WORDS MAY BE IN NON-
013790,000091: 15,2100           50032                           INDEX    26D                                   
013791,000092: 15,2101           30001                           DCA      0                                     #  12 OF THE DATA LIST ARE USED AS
013792,000093: 15,2102           50065                           INDEX    ITEMP1                                #  ADDRESSES OF THE DESIRED DATA.
013793,000094: 15,2103           53404                           DXCH     DNTMBUFF                              
013794,000095: 
013795,000096: 15,2104           37651                           CAF      TWO                                   
013796,000097: 15,2105           26065                           ADS      ITEMP1                                
013797,000098: 15,2106           10066                           CCS      ITEMP2                                
013798,000099: 15,2107           12074                           TCF      LOOP                                  
013799,000100: 
013800,000101: 15,2110           32220                           CAF      DEC11                                 #  SET UP TO SEND 11 REMAINING WORDS
013801,000102: 15,2111           55402                           TS       TMINDEX                               
013802,000103: 15,2112           32213                           CAF      LDNPHASX                              
013803,000104: 15,2113           55401                           TS       DNTMGOTO                              
013804,000105: 
013805,000106: 15,2114           00006                           EXTEND                                         
013806,000107: 15,2115           51400                           INDEX    LDATALST                              
013807,000108: 15,2116           50045                           INDEX    37D                                   
013808,000109: 15,2117           30001                           DCA      0                                     
013809,000110: 15,2120           12146                           TCF      DNTMEXIT                              
013810,000111: 
013811,000112: 15,2121           55402        DNPHASXA           TS       TMINDEX                               
013812,000113: 15,2122           00006                           EXTEND                                         
013813,000114: 15,2123           50000                           INDEX    A                                     #  SENDS SNAPSHOT BUFFER.
013814,000115: 15,2124           52230                           INDEX    FIXLISTB                              
013815,000116: 15,2125           30001                           DCA      0                                     
013816,000117: 15,2126           12146                           TCF      DNTMEXIT                              
013817,000118: 
013818,000119: 15,2127           11402        DNPHASEX           CCS      TMINDEX                               #  AT END OF SNAPSHOT TRANSMISSION, SET UP
013819,000120: 15,2130           12121                           TCF      DNPHASXA                              #  TO SEND 26 PRS FROM ANY ERASABLE LOC AS
013820,000121: 
013821,000122: 15,2131           32214                           CAF      LDNPHAS3                              #  SPECIFIED BY WORDS 1 - 26 OF THE DATA
013822,000123: 15,2132           55401                           TS       DNTMGOTO                              #  LIST.
013823,000124: 15,2133           32217                           CAF      NOGENWDS                              
013824,000125: 
013825,000126: 15,2134           55402        PHASE3A            TS       TMINDEX                               #  GET DP WORD FROM ANY EBANK.
013826,000127: 15,2135           61400                           AD       LDATALST                              
013827,000128: 15,2136           00006                           EXTEND                                         
013828,000129: 15,2137           50000                           INDEX    A                                     
013829,000130: 15,2140           30001                           DCA      0                                     #  THIS GETS THE ADDRESS - MUST USE DCA
013830,000131: 15,2141           54003                           TS       EBANK                                 
013831,000132: 15,2142           75137                           MASK     LOW8                                  
013832,000133: 15,2143           00006                           EXTEND                                         
013833,000134: 15,2144           50000                           INDEX    A                                     
013834,000135: 15,2145           31401                           DCA      3400                                  #  (NOTE ASSEMBLY AS DCA 1400)
013835,000136: 15,2146           00006        DNTMEXIT           EXTEND                                         #  GENERAL DNTM EXIT LOCATION.
013836,000137: 15,2147           01034                           WRITE    DNTM1                                 
013837,000138: 15,2150           30001                           CA       L                                     
013838,000139: 15,2151           00006        TMEXITL            EXTEND                                         
013839,000140: 15,2152           01035                           WRITE    DNTM2                                 
013840,000141: 15,2153           14513                           TCF      NOQRSM                                
013841,000142: 
013842,000143: 15,2154           11402        DNPHASE3           CCS      TMINDEX                               
013843,000144: 15,2155           12134                           TCF      PHASE3A                               
013844,000145: 
013845,000146: 15,2156           32215                           CAF      LDNPHAS4                              #  SEND FIXED FORMAT LIST OF DSPTAB AND
013846,000147: 15,2157           55401                           TS       DNTMGOTO                              #  T2, T1.
013847,000148: 15,2160           36162                           CAF      SIX                                   
013848,000149: 
013849,000150: 15,2161           55402        PHASE4A            TS       TMINDEX                               
013850,000151: 15,2162           00006                           EXTEND                                         #  FIXED DATA LIST FOR DSPTAB AND TIME.
013851,000152: 15,2163           50000                           INDEX    A                                     
013852,000153: 15,2164           52221                           INDEX    FIXLIST                               
013853,000154: 15,2165           30001                           DCA      0                                     
013854,000155: 15,2166           12146                           TCF      DNTMEXIT                              
013855,000156: 15,2167           11402        DNPHASE4           CCS      TMINDEX                               
013856,000157: 15,2170           12161                           TCF      PHASE4A                               
013857,000158: 
013858,000159: 15,2171           32216                           CAF      LPHASE5                               #  SET UP FOR CHANNEL TRANSMISSION.
013859,000160: 15,2172           55401                           TS       DNTMGOTO                              
013860,000161: 15,2173           36165                           CAF      THREE                                 #  FOUR PAIRS OF CHANNELS.
013861,000162: 
013862,000163: 15,2174           55402        PHASE5A            TS       TMINDEX                               
013863,000164: 15,2175           00006                           EXTEND                                         
013864,000165: 15,2176           50000                           INDEX    A                                     
013865,000166: 15,2177           52247                           INDEX    FIXLSTCL                              
013866,000167: 15,2200           00000                           READ     0                                     
013867,000168: 15,2201           54001                           TS       L                                     
013868,000169: 15,2202           00006                           EXTEND                                         
013869,000170: 15,2203           51402                           INDEX    TMINDEX                               
013870,000171: 15,2204           52243                           INDEX    FIXLSTCA                              
013871,000172: 15,2205           00000                           READ     0                                     
013872,000173: 15,2206           12146                           TCF      DNTMEXIT                              
013873,000174: 15,2207           11402        DNPHASE5           CCS      TMINDEX                               
013874,000175: 15,2210           12174                           TCF      PHASE5A                               
013875,000176: 15,2211           12052                           TCF      DNPHASE1                              #  START NEXT CYCLE.
013876,000177:                                                                                                  #        CONSTNATS AND FIXED FORMAT DATA LIST.
013877,000178: 15,2212           02066        LDNPHAS2           ADRES    DNPHASE2                              
013878,000179: 15,2213           02127        LDNPHASX           ADRES    DNPHASEX                              
013879,000180: 15,2214           02154        LDNPHAS3           ADRES    DNPHASE3                              
013880,000181: 15,2215           02167        LDNPHAS4           ADRES    DNPHASE4                              
013881,000182: 15,2216           02207        LPHASE5            ADRES    DNPHASE5                              
013882,000183: 
013883,000184: 15,2217           00031        NOGENWDS           DEC      25         B-14                       #  26 WORDS SENT DURING PHASE 3.
013884,000185: 15,2220           00013        DEC11              DEC      11         B-14                       
013885,000186: 
013886,000187: 15,2221           00024        FIXLIST            ADRES    TIME2                                 #  FIXED-FORMAT PORTION INCLUDES BUFFER,
013887,000188: 15,2222           00321                           ADRES    DSPTAB     +10D                       #  DSPTAB, AND TIME.
013888,000189: 15,2223           00317                           ADRES    DSPTAB     +8D                        
013889,000190: 15,2224           00315                           ADRES    DSPTAB     +6                         
013890,000191: 15,2225           00313                           ADRES    DSPTAB     +4                         
013891,000192: 15,2226           00311                           ADRES    DSPTAB     +2                         
013892,000193: 15,2227           00307                           ADRES    DSPTAB                                
013893,000194: 
013894,000195: 15,2230           01427        FIXLISTB           ADRES    DNTMBUFF   +20D                       
013895,000196: 15,2231           01425                           ADRES    DNTMBUFF   +18D                       
013896,000197: 15,2232           01423                           ADRES    DNTMBUFF   +16D                       
013897,000198: 15,2233           01421                           ADRES    DNTMBUFF   +14D                       
013898,000199: 15,2234           01417                           ADRES    DNTMBUFF   +12D                       
013899,000200: 15,2235           01415                           ADRES    DNTMBUFF   +10D                       
013900,000201: 15,2236           01413                           ADRES    DNTMBUFF   +8D                        
013901,000202: 15,2237           01411                           ADRES    DNTMBUFF   +6D                        
013902,000203: 15,2240           01407                           ADRES    DNTMBUFF   +4D                        
013903,000204: 15,2241           01405                           ADRES    DNTMBUFF   +2D                        
013904,000205: 15,2242           01403                           ADRES    DNTMBUFF                              
013905,000206: 
013906,000207: 15,2243           00032        FIXLSTCA           OCT      32                                    #  CHANNEL ADDRESSES.
013907,000208: 15,2244           00030                           OCT      30                                    
013908,000209: 15,2245           00013                           OCT      13                                    
013909,000210: 15,2246           00011                           OCT      11                                    
013910,000211: 
013911,000212: 15,2247           00033        FIXLSTCL           OCT      33                                    
013912,000213: 15,2250           00031                           OCT      31                                    
013913,000214: 15,2251           00014                           OCT      14                                    
013914,000215: 15,2252           00012                           OCT      12                                    
013915,000216:                                                                                                  #        SPECIAL DATA LIST FOR HIGH SPEED RADAR SAMPLING. TELEMETERS TABLE OF 12 MEASUREMENTS OF 5 WORDS EACH -
013916,000217:                                                                                                  #  DATA IN WORDS 1 & 2, RR CDU ANGLES IN 3 & 4, AND TIME 1 IN 5.
013917,000218: 15,2253           00342        FSTRADTM           ECADR    UPLOCK                                
013918,000219: 15,2254           03436                           ECADR    RFAILCNT                              #  COUNTS BAD SAMPLES.
013919,000220: 15,2255           03545                           ECADR    RSTACK     +70D                       
013920,000221: 15,2256           03543                           ECADR    RSTACK     +68D                       
013921,000222: 15,2257           03541                           ECADR    RSTACK     +66D                       
013922,000223: 15,2260           03537                           ECADR    RSTACK     +64D                       
013923,000224: 15,2261           03535                           ECADR    RSTACK     +62D                       
013924,000225: 15,2262           03533                           ECADR    RSTACK     +60D                       
013925,000226: 15,2263           03531                           ECADR    RSTACK     +58D                       
013926,000227: 15,2264           03527                           ECADR    RSTACK     +56D                       
013927,000228: 15,2265           03525                           ECADR    RSTACK     +54D                       
013928,000229: 15,2266           03523                           ECADR    RSTACK     +52D                       
013929,000230: 15,2267           03521                           ECADR    RSTACK     +50D                       
013930,000231: 15,2270           03517                           ECADR    RSTACK     +48D                       
013931,000232: 15,2271           03515                           ECADR    RSTACK     +46D                       
013932,000233: 15,2272           03513                           ECADR    RSTACK     +44D                       
013933,000234: 15,2273           03511                           ECADR    RSTACK     +42D                       
013934,000235: 15,2274           03507                           ECADR    RSTACK     +40D                       
013935,000236: 15,2275           03505                           ECADR    RSTACK     +38D                       
013936,000237: 15,2276           03503                           ECADR    RSTACK     +36D                       
013937,000238: 15,2277           03501                           ECADR    RSTACK     +34D                       
013938,000239: 15,2300           03477                           ECADR    RSTACK     +32D                       
013939,000240: 15,2301           03475                           ECADR    RSTACK     +30D                       
013940,000241: 15,2302           03473                           ECADR    RSTACK     +28D                       
013941,000242: 15,2303           03471                           ECADR    RSTACK     +26D                       
013942,000243: 15,2304           03467                           ECADR    RSTACK     +24D                       
013943,000244: 15,2305           01465                           ADRES    RSTACK     +22D                       
013944,000245: 15,2306           01463                           ADRES    RSTACK     +20D                       
013945,000246: 15,2307           01461                           ADRES    RSTACK     +18D                       
013946,000247: 15,2310           01457                           ADRES    RSTACK     +16D                       
013947,000248: 15,2311           01455                           ADRES    RSTACK     +14D                       
013948,000249: 15,2312           01453                           ADRES    RSTACK     +12D                       
013949,000250: 15,2313           01451                           ADRES    RSTACK     +10D                       
013950,000251: 15,2314           01447                           ADRES    RSTACK     +8D                        
013951,000252: 15,2315           01445                           ADRES    RSTACK     +6                         
013952,000253: 15,2316           01443                           ADRES    RSTACK     +4                         
013953,000254: 15,2317           01441                           ADRES    RSTACK     +2                         
013954,000255: 15,2320           01437                           ADRES    RSTACK                                
013955,000256:                                                                                                  #        NOMINAL AURORA DOWNLIST.
013956,000257: 15,2321           00342        NOMDNLST           ECADR    UPLOCK                                
013957,000258: 15,2322           03461                           ECADR    RSTACK     +18D                       
013958,000259: 15,2323           03453                           ECADR    RSTACK     +12D                       
013959,000260: 15,2324           03445                           ECADR    RSTACK     +6                         
013960,000261: 15,2325           03437                           ECADR    RSTACK                                
013961,000262: 15,2326           02653                           ECADR    VLAUN      +4                         
013962,000263: 15,2327           02647                           ECADR    VLAUN                                 
013963,000264: 15,2330           02637                           ECADR    ANGX                                  
013964,000265: 15,2331           02635                           ECADR    ANGY                                  
013965,000266: 15,2332           02631                           ECADR    ANGZ                                  
013966,000267: 15,2333           02621                           ECADR    TORQUE                                
013967,000268: 15,2334           02645                           ECADR    DRIFTT                                
013968,000269: 15,2335           02643                           ECADR    DRIFTI                                
013969,000270: 15,2336           02641                           ECADR    DRIFTO                                
013970,000271: 15,2337           00374                           ECADR    MARKSTAT                              
013971,000272: 15,2340           00402                           ECADR    THETAD     +2                         
013972,000273: 15,2341           00400                           ECADR    THETAD                                
013973,000274: 15,2342           00423                           ECADR    TANG                                  
013974,000275: 15,2343           00362                           ECADR    LASTYCMD                              
013975,000276: 15,2344           00366                           ECADR    LMPCMD                                
013976,000277: 15,2345           01362                           ECADR    REDOCTR                               #  INCLUDES FAILREG.
013977,000278: 15,2346           00063                           ECADR    STATE      +2                         
013978,000279: 15,2347           00061                           ECADR    STATE                                 
013979,000280: 15,2350           00035                           ECADR    OPTY                                  
013980,000281: 15,2351           00034                           ECADR    CDUZ                                  
013981,000282: 15,2352           00032                           ECADR    CDUX                                  
013982,000283: 15,2353           00360                           ADRES    FORVEL                                
013983,000284: 15,2354           00355                           ADRES    FINALT                                
013984,000285: 15,2355           00364                           ADRES    ALTSAVE                               
013985,000286: 15,2356           00354                           ADRES    ALTRATE                               
013986,000287: 15,2357           00352                           ADRES    ALT                                   
013987,000288: 15,2360           00421                           ADRES    TIMEHOLD                              
013988,000289: 15,2361           00417                           ADRES    OPTYHOLD                              
013989,000290: 15,2362           00415                           ADRES    SAMPLSUM                              
013990,000291: 15,2363           00427                           ADRES    OLDATAGD                              
013991,000292: 15,2364           00413                           ADRES    RADMODES                              
013992,000293: 15,2365           00041                           ADRES    PIPAZ                                 
013993,000294: 15,2366           00037                           ADRES    PIPAX                                 
013994,000295: 15,2367                        ENDDNTMS           EQUALS                                         

End of include-file DOWN-TELEMETRY_PROGRAM.agc.  Parent file is MAIN.agc