- B1 — Revision 292
- B2 — Revision 302
- B3 — Revision 302
- B4 — Revision 302
- B5 — Revision 292
- B6 — Revision 306
Source Code
|
|
These source code files are an attempted reconstruction of Sundance revision 306, the Apollo 9
LM (Lunar Module) AGC (Apollo Guidance Computer) flight software, created from binary dumps of
original core rope program modules, as follows:
|
001368,000002: ## Copyright: Public domain.
001369,000003: ## Filename: INPUT_OUTPUT_CHANNEL_BIT_DESCRIPTIONS.agc
001370,000004: ## Purpose: A section of an attempt to reconstruct Sundance revision 306
001371,000005: ## as closely as possible with available information. Sundance
001372,000006: ## 306 is the source code for the Lunar Module's (LM) Apollo
001373,000007: ## Guidance Computer (AGC) for Apollo 9. This program was created
001374,000008: ## using the mixed-revision SundanceXXX as a starting point, and
001375,000009: ## pulling back features from Luminary 69 believed to have been
001376,000010: ## added based on memos, checklists, observed address changes,
001377,000011: ## or the Sundance GSOPs.
001378,000012: ## Assembler: yaYUL
001379,000013: ## Contact: Ron Burkey <info@sandroid.org>.
001380,000014: ## Website: www.ibiblio.org/apollo/index.html
001381,000015: ## Mod history: 2020-07-24 MAS Created from SundanceXXX.
001382,000016:
001383,000017:
001384,000018:
001385,000019: # *** CHANNEL DESCRIPTIONSF WORDS ARE ALLOCATED IN ERASABLE ASSIGNMENTS ***
001386,000020:
001387,000021: # CHANNEL 1 IDENTICAL TO COMPUTER REGISTER L (0001)
001388,000022:
001389,000023:
001390,000024: # CHANNEL 2 IDENTICAL TO COMPUTER REGISTER Q (0002)
001391,000025:
001392,000026:
001393,000027: # CHANNEL 3 HISCALAR; INPUT CHANNEL; MOST SIGNIFICANT 14 BITS FROM 33 STAGE BINARY COUNTER. SCALE
001394,000028: # FACTOR IS B23 IN CSEC, SO MAX VALUE ABOUT 23.3 HOURS AND LEAST SIGNIFICANT BIT 5.12 SECS.
001395,000029:
001396,000030:
001397,000031: # CHANNEL 4 LOSCALAR; INPUT CHANNEL; NEXT MOST SIGNIFICANT 14 BITS FROM THE 33 STAGE BINARY COUNTER
001398,000032: # ASSOCIATED WITH CHANNEL 3. SCALE FACTOR IS B9 IN CSEC. SO MAX VAL IS 5.12 SEC AND LEAST
001399,000033: # SIGNIFICANT BIT IS 1/3200 SEC. SCALE FACTOR OF D.P. WORD WITH CHANNEL 3 IS B23 CSEC.
001400,000034:
001401,000035:
001402,000036: # CHANNEL 5 PYJETS; OUTPUT CHANNEL; PITCH RCS JET CONTROL. (REACTION CONTROL SYSTEM) USES BITS 1-8.
001403,000037:
001404,000038:
001405,000039: # CHANNEL 6 ROLLJETS; OUTPUT CHANNEL; ROLL RCS JET CONTROL. (REACTION CONTROL SYSTEM) USES BIT 1-8.
001406,000040:
001407,000041:
001408,000042: # CHANNEL 7 SUPERBNK; OUTPUT CHANNEL; NOT RESET BY RESTART; FIXED EXTENSION BITS USED TO SELECT THE
001409,000043: # APPROPRIATE FIXED MEMORY BANK IF FBANK IS 30 OCTAL OR MORE. USES BITS 5-7.
001410,000044:
001411,000045:
001412,000046: # CHANNEL 10 OUTO; OUTPUT CHANNEL; REGISTER USED TO TRANSMIT LATCHING-RELAY DRIVING INFORMATION FOR
001413,000047: # THE DISPLAY SYSTEM. BITS 15-12 ARE SET TO THE ROW NUMBER (1-14 OCTAL) OF THE RELAY TO BE
001414,000048: # CHANGED AND BITS 11-1 CONTAIN THE REQUIRED SETTINGS FOR THE RELAYS IN THE ROW.
001415,000049:
001416,000050:
001417,000051: # CHANNEL 11 DSALMOUT; OUTPUT CHANNEL; REGISTER WHOSE BITS ARE USED FOR ENGINE ON-OFF CONTROL AND TO
001418,000052: # DRIVE INDIVIDUAL INDICATORS OF THE DISPLAY SYSTEM. BITS 1-7 ARE A RELAYS.
001419,000053:
001420,000054: # BIT 1 ISS WARNING
001421,000055:
001422,000056: # BIT 2 LIGHT COMPUTER ACTIVITY LAMP
001423,000057:
001424,000058: # BIT 3 LIGHT UPLINK ACTIVITY LAMP
001425,000059:
001426,000060: # BIT 4 LIGHT TEMP CAUTION LAMP
001427,000061:
001428,000062: # BIT 5 LIGHT KEYBOARD RELEASE LAMP
001429,000063:
001430,000064: # BIT 6 FLASH VERB AND NOUN LAMPS
001431,000065:
001432,000066: # BIT 7 LIGHT OPERATOR ERROR LAMP
001433,000067:
001434,000068:
001435,000069: # BIT 8 SPARE
001436,000070:
001437,000071: # BIT 9 TEST CONNECTOR OUTBIT
001438,000072:
001439,000073: # BIT 10 CAUTION RESET
001440,000074:
001441,000075: # BIT 11 SPARE
001442,000076:
001443,000077: # BIT 12 SPARE
001444,000078:
001445,000079: # BIT 13 ENGINE ON
001446,000080:
001447,000081: # BIT 14 ENGINE OFF
001448,000082:
001449,000083: # BIT 15 SPARE
001450,000084:
001451,000085:
001452,000086: # CHANNEL 12 CHAN12; OUTPUT CHANNEL; BITS USED TO DRIVE NAVIGATION AND SPAECRAFT HARDWARE
001453,000087:
001454,000088: # BIT 1 ZERO RR CDU; CDU'S GIVE RRADAR INFORMATION FOR LM
001455,000089:
001456,000090: # BIT 2 ENABLE CDU RADAR ERROR COUNTERS
001457,000091:
001458,000092: # BIT 3 NOT USED
001459,000093:
001460,000094: # BIT 4 COARSE ALIGN ENABLE OF IMU
001461,000095:
001462,000096: # BIT 5 ZERO IMU CDU'S
001463,000097:
001464,000098: # BIT 6 ENABLE IMU ERROR COUNTER, CDU ERROR COUNTER.
001465,000099:
001466,000100: # BIT 7 SPARE
001467,000101:
001468,000102: # BIT 8 DISPLAY INERTIAL DATA
001469,000103:
001470,000104: # BIT 9 -PITCH GIMBAL TRIM (BELL MOTION) DESCENT ENGINE
001471,000105:
001472,000106: # BIT 10 +PITCH GIMBAL TRIM (BELL MOTION) DESCENT ENGINE
001473,000107:
001474,000108: # BIT 11 -ROLL GIMBAL TRIM (BELL MOTION) DESCENT ENGINE
001475,000109:
001476,000110: # BIT 12 +ROLL GIMBAL TRIM (BELL MOTION) DESCENT ENGINE
001477,000111:
001478,000112: # BIT 13 LR POSITION 2 COMMAND
001479,000113:
001480,000114: # BIT 14 ENABLE RENDESVOUS RADAR LOCK-ON;AUTO ANGLE TRACK'G
001481,000115:
001482,000116: # BIT 15 ISS TURN ON DELAY COMPLETE
001483,000117:
001484,000118:
001485,000119: # CHANNEL 13 CHAN13; OUTPUT CHANNEL
001486,000120:
001487,000121: # BIT 1 RADAR C PROPER SETTING OF THE A,B,C MATRIX
001488,000122: # BIT 2 RADAR B SELECTS CERTAIN RADAR
001489,000123: # BIT 3 RADAR A PARAMETERS TO BE READ.
001490,000124:
001491,000125: # BIT 4 RADAR ACTIVITY
001492,000126:
001493,000127: # BIT 5 NOT USED (CONNECTS AN ALTERNATE INPUT TO UPLINK)
001494,000128:
001495,000129: # BIT 6 BLOCK INPUTS TO UPLINK CELL
001496,000130:
001497,000131: # BIT 7 DOWNLINK TELEMETRY WORD ORDER CODE BIT
001498,000132:
001499,000133: # BIT 8 RHC COUNTER ENABLE (READ HAND CONTROLLER ANGLES)
001500,000134:
001501,000135: # BIT 9 START RHC READ INTO COUNTERS IF BIT 8 SET
001502,000136:
001503,000137: # BIT 10 TEST ALARMS, TEST DSKY LIGHTS
001504,000138:
001505,000139: # BIT 11 ENABLE STANDBY
001506,000140:
001507,000141: # BIT 12 RESET TRAP 31-A ALWAYS APPEAR TO BE SET TO 0
001508,000142:
001509,000143: # BIT 13 RESET TRAP 31-B ALWAYS APPEAR TO BE SET TO 0
001510,000144:
001511,000145: # BIT 14 RESET TRAP 32 ALWAYS APPEAR TO BE SET TO 0
001512,000146:
001513,000147: # BIT 15 ENABLE T6 RUPT
001514,000148:
001515,000149:
001516,000150: # CHANNEL 14 CHAN14; OUTPUT CHANNEL; USED TO CONTROL COMPUTER COUNTER CELLS (CDU,GYRO,SPACECRAFT FUNC.
001517,000151:
001518,000152: # BIT 1 OUTLINK ACTIVITY (NOT USED)
001519,000153:
001520,000154: # BIT 2 ALTITUDE RATE OR ALTITIDE SELECTOR
001521,000155:
001522,000156: # BIT 3 ALTITUDE METER ACTIVITY
001523,000157:
001524,000158: # BIT 4 THRUST DRIVE ACTIVITY FOR DESCENT ENGINE
001525,000159:
001526,000160: # BIT 5 SPARE
001527,000161:
001528,000162: # BIT 6 GYRO ENABLE POWER FOR PULSES
001529,000163:
001530,000164: # BIT 7 GYRO SELECT B PAIR OF BITS IDENTIFIES AXIS OF -
001531,000165: # BIT 8 GYRO SELECT A GYRO SYSTEM TO BE TORQUED.
001532,000166:
001533,000167: # BIT 9 GYRO TORQUING COMMAND IN NEGATIVE DIRECTION
001534,000168:
001535,000169:
001536,000170: # BIT 10 GYRO ACTIVITY
001537,000171:
001538,000172: # BIT 11 DRIVE CDU S
001539,000173:
001540,000174: # BIT 12 DRIVE CDU T
001541,000175:
001542,000176: # BIT 13 DRIVE CDU Z
001543,000177:
001544,000178: # BIT 14 DRIVE CDU Y
001545,000179:
001546,000180: # BIT 15 DRIVE CDU X
001547,000181:
001548,000182:
001549,000183: # CHANNEL 15 MNKEYIN; INPUT CHANNEL;KEY CODE INPUT FROM KEYBOARD OF DSKY, SENSED BY PROGRAM WHEN
001550,000184: # PROGRAM INTERRUPT #5 IS RECEIVED. USES BITS 5-1
001551,000185:
001552,000186:
001553,000187: # CHANNEL 16 NAVKEYIN; INPUT CHANNEL; OPTICS MARK INFORMATION AND NAVIGA ION PANEL DSKY (CM) OR THRUST
001554,000188: # CONTROL (LM) SENSED BY PROGRAM WHEN PROGRAM INTER-RUPT #6 IS RECEIVED. USES BITS 3-7 ONLY.
001555,000189:
001556,000190: # BIT 1 NOT ASSIGNED
001557,000191:
001558,000192: # BIT 2 NOT ASSIGNED
001559,000193:
001560,000194: # BIT 3 OPTICS X-AXIS MARK SIGNAL FOR ALIGN OPTICAL TSCOPE
001561,000195:
001562,000196: # BIT 4 OPTICS Y-AXIS MARK SIGNAL FOR AOT
001563,000197:
001564,000198: # BIT 5 OPTICS MARK REJECT SIGNAL
001565,000199:
001566,000200: # BIT 6 DESCENT+ ; CREW DESIRED SLOWING RATE OF DESCENT
001567,000201:
001568,000202: # BIT 7 DESCENT- ; CREW DESIRED SPEEDING UP RATE OF D'CENT
001569,000203:
001570,000204:
001571,000205: # NOTE: ALL BITS IN CHANNELS 30-33 ARE INVERTED AS SENSED BY THE PROGRAM, SO THAT A VALUE OF ZERO MEANS
001572,000206: # THAT THE INDICATED SIGNAL IS PRESENT.
001573,000207:
001574,000208:
001575,000209: # CHANNEL 30 INPUT CHANNEL
001576,000210:
001577,000211: # BIT 1 ABORT WITH DESCENT STAGE
001578,000212:
001579,000213: # BIT 2 STAGE VERIFY SIGNAL
001580,000214:
001581,000215: # BIT 3 ENGINE ARMED SIGNAL
001582,000216:
001583,000217: # BIT 4 ABORT WITH ASCENT ENGINE STAGE
001584,000218:
001585,000219: # BIT 5 AUTO THROTTLE; COMPUTER CONTROL OF DESCENT ENGINE
001586,000220:
001587,000221: # BIT 6 DISPLAY INERTIAL DATA
001588,000222:
001589,000223: # BIT 7 RR CDU FAIL
001590,000224:
001591,000225: # BIT 8 SPARE
001592,000226:
001593,000227: # BIT 9 IMU OPERATE WITH NO MALFUNCTION
001594,000228:
001595,000229: # BIT 10 LM COMPUTER (NOT AGS) HAS CONTROL OF LM
001596,000230:
001597,000231: # BIT 11 IMU CAGE COMMAND TO DRIVE IMU GIMBAL ANGLES TO 0.
001598,000232:
001599,000233: # BIT 12 IMU CDU FAIL (MALFUNCTION OF IMU CDU,S)
001600,000234:
001601,000235: # BIT 13 IMU FAIL (MALFUNCTION OF IMU STABILIZATION LOOPS)
001602,000236:
001603,000237: # BIT 14 ISS TURN ON REQUESTED
001604,000238:
001605,000239: # BIT 15 TEMPERATURE OF STABLE MEMBER WITHIN DESIGN LIMITS
001606,000240:
001607,000241:
001608,000242: # CHANNEL 31 INPUT CHANNEL; BITS ASSOCIATED WITH THE ATTITUDE CONTROLLER, TRANSLATIONAL CONTROLLER,
001609,000243: # AND SPACECRAFT ATTITUDE CONTROL; USED BY RCS DAP
001610,000244:
001611,000245: # BIT 1 ROTATION (BY RHC) COMMANDED IN POSITIVE PITCH DIRECTION; MUST BE IN MINIMUM IMPULSE MODE.
001612,000246: # ALSO POSITIVE ELEVATION CHANGE FOR LANDING POINT DESIGNATOR
001613,000247:
001614,000248: # BIT 2 AS BIT 1 EXCEPT NEGATIVE PITCH AND ELEVATION
001615,000249:
001616,000250: # BIT 3 ROTATION (BY RHC) COMMANDED IN POSITIVE YAW DIRECTION; MUST BE IN MINUMUM IMPULSE MODE.
001617,000251:
001618,000252: # BIT 4 AS BIT 3 EXCEPT NEGATIVE YAW
001619,000253:
001620,000254: # BIT 5 ROTATION (BY RHC) COMMANDED IN POSITIVE ROLL DIRECTION; MUST BE IN MINIMUM IMPULSE MODE.
001621,000255: # ALSO POSITIVE AZIMUTH CHANGE FOR LANDING POINT DESIGNATOR
001622,000256:
001623,000257: # BIT 6 AS BIT 5 EXCEPT NEGATIVE ROLL AND AZIMUTH
001624,000258:
001625,000259: # BIT 7 TRANSLATION IN +X DIRECTION COMMANDED BY THC
001626,000260:
001627,000261: # BIT 8 TRANSLATION IN -X DIRECTION COMMANDED BY THC
001628,000262:
001629,000263: # BIT 9 TRANSLATION IN +Y DIRECTION COMMANDED BY THC
001630,000264:
001631,000265: # BIT 10 TRANSLATION IN -Y DIRECTION COMMANDED BY THC
001632,000266:
001633,000267: # BIT 11 TRANSLATION IN +Z DIRECTION COMMANDED BY THC
001634,000268:
001635,000269: # BIT 12 TRANSLATION IN -Z DIRECTION COMMANDED BY THC
001636,000270:
001637,000271:
001638,000272: # BIT 13 ATTITUDE HOLD MODE ON SCS MODE CONTROL SWITCH
001639,000273:
001640,000274: # BIT 14 AUTO STABILIZATION OF ATTITUDE ON SCS MODE SWITCH
001641,000275:
001642,000276: # BIT 15 ATTITUDE CONTROL OUT OF DETENT (RHC NOT IN NEUTRAL
001643,000277:
001644,000278:
001645,000279: # CHANNEL 32 INPUT CHANNEL.
001646,000280:
001647,000281: # BIT 1 THRUSTERS 2 & 4 DISABLED BY CREW
001648,000282:
001649,000283: # BIT 2 THRUSTERS 5 & 8 DISABLED BY CREW
001650,000284:
001651,000285: # BIT 3 THRUSTERS 1 & 3 DISABLED BY CREW
001652,000286:
001653,000287: # BIT 4 THRUSTERS 6 & 7 DISABLED BY CREW
001654,000288:
001655,000289: # BIT 5 THRUSTERS 14 & 16 DISABLED BY CREW
001656,000290:
001657,000291: # BIT 6 THRUSTERS 13 & 15 DISABLED BY CREW
001658,000292:
001659,000293: # BIT 7 THRUSTERS 9 & 12 DISABLED BY CREW
001660,000294:
001661,000295: # BIT 8 THRUSTERS 10 & 11 DISABLED BY CREW
001662,000296:
001663,000297: # BIT 9 DESCENT ENGINE GIMBALS DISABLED BY CREW
001664,000298:
001665,000299: # BIT 10 APPARENT DESCENT ENGINE GIMBAL FAILURE
001666,000300:
001667,000301: # BIT 14 INDICATES PROCEED KEY IS DEPRESSED
001668,000302:
001669,000303:
001670,000304: # CHANNEL 33 CHAN33; INPUT CHANNEL; FOR HARDWARE STATUS AND COMMAND INFORMATION. BITS 15-11 ARE FLIP-
001671,000305: # FLOP BITS RESET BY A CHANNEL "WRITE" COMMAND THAT ARE RESET BY A RESTART & BY T4RUPT LOOP.
001672,000306:
001673,000307: # BIT 1 SPARE
001674,000308:
001675,000309: # BIT 2 RR AUTO-POWER ON
001676,000310:
001677,000311: # BIT 3 RR RANGE LOW SCALE
001678,000312:
001679,000313: # BIT 4 RR DATA GOOD
001680,000314:
001681,000315: # BIT 5 LR RANGE DATA GOOD
001682,000316:
001683,000317: # BIT 6 LR POS1
001684,000318:
001685,000319: # BIT 7 LR POS2
001686,000320:
001687,000321:
001688,000322: # BIT 8 LR VEL DATA GOOD
001689,000323:
001690,000324: # BIT 9 LR RANGE LOW SCALE
001691,000325:
001692,000326: # BIT 10 BLOCK UPLINK INPUT
001693,000327:
001694,000328: # BIT 11 UPLINK TOO FAST
001695,000329:
001696,000330: # BIT 12 DOWNLINK TOO FAST
001697,000331:
001698,000332: # BIT 13 PIPA FAIL
001699,000333:
001700,000334: # BIT 14 WARNING OF REPEATED ALARMS: RESTART,COUNTER FAIL, VOLTAGE FAIL,AND SCALAR DOUBLE.
001701,000335:
001702,000336: # BIT 15 LGC OSCILLATOR STOPPED
001703,000337:
001704,000338:
001705,000339: # CHANNEL 34 DNT M1; OUTPUT CHANNEL; DOWNLINK 1 FIRST OF TWO WORDS SERIALIZATION.
001706,000340: # CHANNEL 35 DNT M2; OUTPUT CHANNEL DOWNLINK 2 SOCOND OF TWO WORDS SERIALIZATION.
End of include-file INPUT_OUTPUT_CHANNEL_BIT_DESCRIPTIONS.agc. Parent file is MAIN.agc