Source Code
These source-code files were transcribed from scans made from Don Eyles's personal
copy of Luminary 069. They were scanned at archive.org's Boston
facility, and the scanning was sponsored by Onno Hommes. The code was transcribed
from these scans by a team of volunteers who are referenced in the program
comments. Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". In some cases, where
similar code blocks exist in previously-transcribed AGC programs (primarily
Luminary 99, from Apollo 11) those code blocks were used as a starting point and
then corrected to agree with the Luminary 69 scans. The full scans are available
at the Virtual AGC
project's collection at archive.org, while more-convenient reduced-size (but reduced-quality)
images are available at
the main Virtual AGC website. Report any errors noted by creating an
issue report at the Virtual AGC
project's GitHub repository. Notations on the program listing read, in part:GAP: ASSEMBLE REVISION 069 OF AGC PROGRAM LUMINARY BY NASA 2021112-011 19:02 NOV. 25,1968Note that the date is the date of the printout, not the date of the program revision. |
017144,000002: ## Copyright: Public domain.
017145,000003: ## Filename: IMU_PERFORMANCE_TESTS_4.agc
017146,000004: ## Purpose: The main source file for Luminary revision 069.
017147,000005: ## It is part of the source code for the original release
017148,000006: ## of the flight software for the Lunar Module's (LM) Apollo
017149,000007: ## Guidance Computer (AGC) for Apollo 10. The actual flown
017150,000008: ## version was Luminary 69 revision 2, which included a
017151,000009: ## newer lunar gravity model and only affected module 2.
017152,000010: ## This file is intended to be a faithful transcription, except
017153,000011: ## that the code format has been changed to conform to the
017154,000012: ## requirements of the yaYUL assembler rather than the
017155,000013: ## original YUL assembler.
017156,000014: ## Reference: pp. 395-402
017157,000015: ## Assembler: yaYUL
017158,000016: ## Contact: Ron Burkey <info@sandroid.org>.
017159,000017: ## Website: www.ibiblio.org/apollo/index.html
017160,000018: ## Mod history: 2016-12-13 MAS Created from Luminary 99.
017161,000019: ## 2016-12-14 MAS Updated from comment-proofed Luminary 99 version.
017162,000020: ## 2017-01-11 RRB Updated for Luminary 69.
017163,000021: ## 2017-01-27 RSB Proofed comment text using octopus/prooferComments
017164,000022: ## and fixed errors found.
017165,000023: ## 2017-03-07 RSB Comment-text error-fixes noted in proofing Luminary 116.
017166,000024:
Page 395 |
017168,000026: # PROGRAM-IMU PERFORMANCE TESTS 4
017169,000027: # DATE-NOV 15, 1966
017170,000028: # BY-GEORGE SCHMIDT IL7-146 EXT 1126
017171,000029: # MOD NO-ZERO
017172,000030:
017173,000031: # FUNCTIONAL DESCRIPTION
017174,000032:
017175,000033: # THIS SECTION CONSISTS OF THE FILTER FOR THE GYRO DRIFT TESTS. NO COMPASS
017176,000034: # IS DONE IN LEM. FOR A DESCRIPTION OF THE FILTER SEE E-1973. THIS
017177,000035: # SECTION IS ENTERED FROM IMU 2. IT RETURNS THERE AT END OF TEST.
017178,000036:
017179,000037: # EARTHR,OGC ZERO,ERTHRVSE
017180,000038:
017181,000039: # NORMAL EXIT
017182,000040:
017183,000041: # LENGTHOT GOES TO ZERO-RETURN TO IMU PERF TESTS 2 CONTROL
017184,000042:
017185,000043: # ALARMS
017186,000044:
017187,000045: # 1600 OVERFLOW IN DRIFT TEST
017188,000046: # 1601 BAD IMU MODING IN ANY ROUTINE THAT USES IMUSTALL
017189,000047: # OUTPUT
017190,000048:
017191,000049: # FLASHING DISPLAY OF RESULTS - CONTROLLED IN IMU PERF TESTS 2
017192,000050:
017193,000051: # DEBRIS
017194,000052:
017195,000053: # ALL CENTRALS - ALL OF EBANK XSM
017196,000054:
Page 396 |
017198,000056: 33,2045 BANK 33
017199,000057: 37,2000 SETLOC IMU4
017200,000058: 37,2000 BANK
017201,000059: 37,2500 COUNT* $$/P07
017202,000060:
017203,000061: 37,2500 E5,1642 EBANK= XSM
017204,000062:
017205,000063: 37,2500 00004 ESTIMS INHINT
017206,000064: 37,2501 31572 CAE 1SECXT
017207,000065: 37,2502 05173 TC TWIDDLE
017208,000066: 37,2503 E5,1642 EBANK= XSM
017209,000067: 37,2503 02536 ADRES ALLOOP
017210,000068: 37,2504 34755 CAF ZERO # ZERO THE PIPAS
017211,000069: 37,2505 54037 TS PIPAX
017212,000070: 37,2506 54040 TS PIPAY
017213,000071: 37,2507 54041 TS PIPAZ
017214,000072: 37,2510 00003 RELINT
017215,000073: 37,2511 33075 CA 77DECML
017216,000074: 37,2512 55571 TS ZERONDX
017217,000075: 37,2513 33076 CA ALXXXZ
017218,000076: 37,2514 02367 TC ZEROING
017219,000077: 37,2515 06036 TC INTPRET
017220,000078: 37,2516 77735 SLOAD
017221,000079: 37,2517 37057 SCHZEROS
017222,000080: 37,2520 25477 STOVL GCOMPSW -1
017223,000081: 37,2521 37070 INTVAL +2
017224,000082: 37,2522 26445 STOVL ALX1S
017225,000083: 37,2523 37057 SCHZEROS
017226,000084: 37,2524 00325 STORE DELVX
017227,000085: 37,2525 01472 STORE GCOMP
017228,000086: 37,2526 77735 SLOAD
017229,000087: 37,2527 02441 TORQNDX
017230,000088: 37,2530 50076 DCOMP BMN
017231,000089: 37,2531 76534 VERTSKIP
017232,000090: 37,2532 77624 CALL
017233,000091: 37,2533 76401 ERTHRVSE
017234,000092: 37,2534 77776 VERTSKIP EXIT
017235,000093: 37,2535 03035 TC SLEEPIE +1
017236,000094:
Page 397 |
017238,000096: 37,2536 31576 ALLOOP CA OVFLOWCK
017239,000097: 37,2537 00006 EXTEND
017240,000098: 37,2540 12542 BZF +2
017241,000099: 37,2541 05261 TC TASKOVER
017242,000100: 37,2542 11530 CCS ALTIM
017243,000101: 37,2543 30000 CA A # SHOULD NEVER HIT THIS LOCATION
017244,000102: 37,2544 55531 TS ALTIMS
017245,000103: 37,2545 40000 CS A
017246,000104: 37,2546 55530 TS ALTIM
017247,000105: 37,2547 44753 CS ONE
017248,000106: 37,2550 61562 AD GEOCOMPS
017249,000107: 37,2551 00006 EXTEND
017250,000108: 37,2552 12556 BZF +4
017251,000109: 37,2553 31412 CA LENGTHOT
017252,000110: 37,2554 00006 EXTEND
017253,000111: 37,2555 62562 BZMF +5
017254,000112: 37,2556 31572 CAE 1SECXT
017255,000113: 37,2557 05173 TC TWIDDLE
017256,000114: 37,2560 E5,1642 EBANK= XSM
017257,000115: 37,2560 02536 ADRES ALLOOP
017258,000116: 37,2561 34755 CAF ZERO
017259,000117: 37,2562 56037 XCH PIPAX
017260,000118: 37,2563 54324 TS DELVX
017261,000119: 37,2564 34755 CAF ZERO
017262,000120: 37,2565 56040 XCH PIPAY
017263,000121: 37,2566 54326 TS DELVY
017264,000122: 37,2567 34755 CAF ZERO
017265,000123: 37,2570 56041 XCH PIPAZ
017266,000124: 37,2571 54330 TS DELVZ
017267,000125: 37,2572 34736 SPECSTS CAF PRIO20
017268,000126: 37,2573 05105 TC FINDVAC
017269,000127: 37,2574 E5,1642 EBANK= XSM
017270,000128: 37,2574 02577 76065 2CADR ALFLT # START THE JOB
017271,000129:
017272,000130: 37,2576 05261 TC TASKOVER
017273,000131:
Page 398 |
017275,000133: 37,2577 11562 ALFLT CCS GEOCOMPS
017276,000134: 37,2600 02602 TC +2
017277,000135: 37,2601 02604 TC NORMLOP
017278,000136: 37,2602 04616 TC BANKCALL
017279,000137: 37,2603 15263 CADR 1/PIPA
017280,000138: 37,2604 06036 NORMLOP TC INTPRET
017281,000139: 37,2605 77745 DLOAD
017282,000140: 37,2606 37066 INTVAL
017283,000141: 37,2607 24051 STOVL S1
017284,000142: 37,2610 00325 DELVX
017285,000143: 37,2611 76505 VXM VSL1
017286,000144: 37,2612 02643 XSM
017287,000145: 37,2613 57545 DLOAD DCOMP
017288,000146: 37,2614 00160 MPAC +3
017289,000147: 37,2615 16523 STODL DPIPAY
017290,000148: 37,2616 00162 MPAC +5
017291,000149: 37,2617 02527 STORE DPIPAZ
017292,000150:
017293,000151: 37,2620 76001 SETPD AXT,1
017294,000152: 37,2621 00001 0
017295,000153: 37,2622 00010 8D
017296,000154: 37,2623 57535 SLOAD DCOMP
017297,000155: 37,2624 02563 GEOCOMPS
017298,000156: 37,2625 77640 BMN
017299,000157: 37,2626 76772 PERFERAS
017300,000158: 37,2627 50135 ALCGKK SLOAD BMN
017301,000159: 37,2630 02532 ALTIMS
017302,000160: 37,2631 76644 ALFLT3
017303,000161: 37,2632 72174 ALKCG AXT,2 LXA,1 # LOADS SLOPES AND TIME CONSTANTS AT RQST
017304,000162: 37,2633 00014 12D
017305,000163: 37,2634 02444 ALX1S
017306,000164: 37,2635 62143 ALKCG2 DLOAD* INCR,1
017307,000165: 37,2636 02243 ALFDK +144D,1
017308,000166: 37,2637 77775 DEC -2 B-14
017309,000167: 37,2640 12545 STORE ALDK +10D,2
017310,000168: 37,2641 66104 TIX,2 SXA,1
017311,000169: 37,2642 76635 ALKCG2
017312,000170: 37,2643 02444 ALX1S
017313,000171:
017314,000172: 37,2644 77770 ALFLT3 AXT,1
017315,000173: 37,2645 00010 8D
017316,000174: 37,2646 41343 DELMLP DLOAD* DMP
017317,000175: 37,2647 02533 DPIPAY +8D,1
017318,000176: 37,2650 37100 PIPASC
017319,000177: 37,2651 43661 SLR BDSU*
017320,000178: 37,2652 21212 9D
017321,000179: 37,2653 02501 INTY +8D,1
017322,000180: 37,2654 06501 STORE INTY +8D,1
017323,000181: 37,2655 40725 PDDL DMP*
017324,000182: 37,2656 37102 VELSC
Page 399 |
017326,000184: 37,2657 02521 VLAUN +8D,1
017327,000185: 37,2660 77732 SL2R
017328,000186: 37,2661 45425 DSU STADR
017329,000187: 37,2662 71216 STORE DELM +8D,1
017330,000188: 37,2663 06563 STORE DELM +10D,1
017331,000189: 37,2664 77100 TIX,1 AXT,2
017332,000190: 37,2665 76646 DELMLP
017333,000191: 37,2666 00004 4
017334,000192: 37,2667 56743 ALILP DLOAD* DMPR*
017335,000193: 37,2670 75324 ALK +4,2
017336,000194: 37,2671 75240 ALDK +4,2
017337,000195: 37,2672 12453 STORE ALK +4,2
017338,000196: 37,2673 77104 TIX,2 AXT,2
017339,000197: 37,2674 76667 ALILP
017340,000198: 37,2675 00010 8D
017341,000199: 37,2676 66140 ALKLP LXC,1 SXA,1
017342,000200: 37,2677 02445 CMPX1
017343,000201: 37,2700 02445 CMPX1
017344,000202: 37,2701 56743 DLOAD* DMPR*
017345,000203: 37,2702 02450 ALK +1,1
017346,000204: 37,2703 75216 DELM +8D,2
017347,000205: 37,2704 77613 DAD*
017348,000206: 37,2705 75276 INTY +8D,2
017349,000207: 37,2706 12501 STORE INTY +8D,2
017350,000208: 37,2707 42743 DLOAD* DAD*
017351,000209: 37,2710 75314 ALK +12D,2
017352,000210: 37,2711 75230 ALDK +12D,2
017353,000211: 37,2712 12463 STORE ALK +12D,2
017354,000212: 37,2713 42673 DMPR* DAD*
017355,000213: 37,2714 75216 DELM +8D,2
017356,000214: 37,2715 75266 INTY +16D,2
017357,000215: 37,2716 12511 STORE INTY +16D,2
017358,000216: 37,2717 40743 DLOAD* DMP*
017359,000217: 37,2720 37105 ALSK +1,1
017360,000218: 37,2721 75216 DELM +8D,2
017361,000219: 37,2722 42772 SL1R DAD*
017362,000220: 37,2723 75256 VLAUN +8D,2
017363,000221: 37,2724 12521 STORE VLAUN +8D,2
017364,000222: 37,2725 76104 TIX,2 AXT,1
017365,000223: 37,2726 76676 ALKLP
017366,000224: 37,2727 00010 8D
017367,000225:
017368,000226: 37,2730 64743 LOOSE DLOAD* PDDL*
017369,000227: 37,2731 02523 ACCWD +8D,1
017370,000228: 37,2732 02521 VLAUN +8D,1
017371,000229: 37,2733 55523 PDDL* VDEF
017372,000230: 37,2734 02531 POSNV +8D,1
017373,000231: 37,2735 76521 MXV VSL1
017374,000232: 37,2736 02001 TRANSM1
Page 400 |
017376,000234: 37,2737 77745 DLOAD
017377,000235: 37,2740 00155 MPAC
017378,000236: 37,2741 06531 STORE POSNV +8D,1
017379,000237: 37,2742 77745 DLOAD
017380,000238: 37,2743 00160 MPAC +3
017381,000239: 37,2744 06521 STORE VLAUN +8D,1
017382,000240: 37,2745 77745 DLOAD
017383,000241: 37,2746 00162 MPAC +5
017384,000242: 37,2747 06523 STORE ACCWD +8D,1
017385,000243: 37,2750 77700 TIX,1
017386,000244: 37,2751 76730 LOOSE
017387,000245:
017388,000246: 37,2752 76174 AXT,2 AXT,1 # EVALUATE SINES AND COSINES
017389,000247: 37,2753 00006 6
017390,000248: 37,2754 00002 2
017391,000249: 37,2755 57343 BOOP DLOAD* DMPR
017392,000250: 37,2756 02503 ANGX +2,1
017393,000251: 37,2757 37110 GEORGEJ
017394,000252: 37,2760 77722 SR2R
017395,000253: 37,2761 73406 PUSH SIN
017396,000254: 37,2762 56072 SL3R XAD,1
017397,000255: 37,2763 00046 X1
017398,000256: 37,2764 10021 STORE 16D,2
017399,000257: 37,2765 77745 DLOAD
017400,000258: 37,2766 77746 COS
017401,000259: 37,2767 10027 STORE 22D,2 # COSINES
017402,000260: 37,2770 77704 TIX,2
017403,000261: 37,2771 76755 BOOP
017404,000262:
017405,000263: 37,2772 77776 PERFERAS EXIT
017406,000264: 37,2773 35016 CA EBANK7
017407,000265: 37,2774 54003 TS EBANK
017408,000266: 37,2775 E7,1400 EBANK= ATIGINC
017409,000267: 37,2775 01400 TC ATIGINC # GOTO ERASABLE TO CALCULATE ONLY TO RETN
017410,000268:
017411,000269: # CAUTION
017412,000270:
017413,000271: # THE ERASABLE PROGRAM THAT DOES THE CALCULATIONS MUST BE LOADED
017414,000272: # BEFORE ANY ATTEMPT IS MADE TO RUN THE IMU PERFORMANCE TEST
017415,000273:
017416,000274: 37,2776 E5,1400 EBANK= AZIMUTH
017417,000275: 37,2776 11412 CCS LENGTHOT
017418,000276: 37,2777 03034 TC SLEEPIE
017419,000277: 37,3000 11440 CCS TORQNDX
017420,000278: 37,3001 13003 TCF +2
017421,000279: 37,3002 03005 TC SETUPER1
017422,000280: 37,3003 30032 CA CDUX
017423,000281: 37,3004 55414 TS LOSVEC +1 # FOR TROUBLESHOOTING VD POSNS 2$4
017424,000282:
Page 401 |
017426,000284: 37,3005 06036 SETUPER1 TC INTPRET
017427,000285: 37,3006 65345 DLOAD PDDL # ANGLES FROM DRIFT TEST ONLY
017428,000286: 37,3007 02473 ANGZ
017429,000287: 37,3010 02477 ANGY
017430,000288: 37,3011 55525 PDDL VDEF
017431,000289: 37,3012 02501 ANGX
017432,000290: 37,3013 74276 VCOMP VXSC
017433,000291: 37,3014 37110 GEORGEJ
017434,000292: 37,3015 74521 MXV VSR1
017435,000293: 37,3016 02643 XSM
017436,000294: 37,3017 02740 STORE OGC
017437,000295: 37,3020 77776 EXIT
017438,000296:
017439,000297: 37,3021 32475 CA OGCPL
017440,000298: 37,3022 04616 TC BANKCALL
017441,000299: 37,3023 17276 CADR IMUPULSE
017442,000300: 37,3024 02315 TC IMUSLLLG
017443,000301: 37,3025 11440 GEOSTRT4 CCS TORQNDX # ONLY POSITIVE IF IN VERTICAL DRIFT TEST
017444,000302: 37,3026 02263 TC VALMIS
017445,000303: 37,3027 06036 TC INTPRET
017446,000304: 37,3030 77624 CALL
017447,000305: 37,3031 76401 ERTHRVSE
017448,000306: 37,3032 77776 EXIT
017449,000307: 37,3033 02117 TC TORQUE
017450,000308:
017451,000309: 37,3034 55412 SLEEPIE TS LENGTHOT # TEST NOT OVER-DECREMENT LENGTHOT
017452,000310: 37,3035 11440 CCS TORQNDX # ARE WE DOING VERTDRIFT
017453,000311: 37,3036 02447 TC EARTHR*
017454,000312: 37,3037 05155 TC ENDOFJOB
017455,000313:
017456,000314: 37,3040 35014 SOMEERRR CA EBANK5
017457,000315: 37,3041 54003 TS EBANK
017458,000316: 37,3042 34753 CA ONE
017459,000317: 37,3043 55576 TS OVFLOWCK # STOP ALLOOP FROM CALLING ITSELF
017460,000318: 37,3044 05567 TC ALARM
017461,000319: 37,3045 01600 OCT 1600
017462,000320: 37,3046 02270 TC ENDTEST1
017463,000321: 37,3047 33054 SOMERR2 CAF OCT1601
017464,000322: 37,3050 05735 TC VARALARM
017465,000323: 37,3051 05516 TC DOWNFLAG
017466,000324: 37,3052 00007 ADRES IMUSE
017467,000325: 37,3053 05155 TC ENDOFJOB
017468,000326:
017469,000327: 37,3054 01601 OCT1601 OCT 01601
017470,000328: 37,3055 06200 DEC585 OCT 06200 # 3200 B+14 ORDER IS IMPORTANT
017471,000329: 37,3056 00000 00000 SCHZEROS 2DEC .00000000
Page 402 |
017473,000331: 37,3060 00000 00000 2DEC .00000000
017474,000332:
017475,000333: 37,3062 00000 OCT 00000
017476,000334: 37,3063 00000 ONEDPP OCT 00000 # ORDER IS IMPORTANT
017477,000335: 37,3064 00001 OCT 00001
017478,000336:
017479,000337: 37,3065 00004 INTVAL OCT 4
017480,000338: 37,3066 00002 OCT 2
017481,000339: 37,3067 00220 DEC 144 B-14
017482,000340: 37,3070 77776 DEC -1 B-14
017483,000341: 37,3071 35730 00035 SOUPLY 2DEC .93505870 # INITIAL GAINS FOR PIP OUTPUTS
017484,000342:
017485,000343: 37,3073 10317 17550 2DEC .26266423 # INITIAL GAINS/4 FOR ERECTION ANGLES
017486,000344:
017487,000345: 37,3075 00115 77DECML DEC 77 B-14
017488,000346: 37,3076 01443 ALXXXZ GENADR ALX1S -1
017489,000347: 37,3077 04133 02265 PIPASC 2DEC .13055869
017490,000348:
017491,000349: 37,3101 57223 66451 VELSC 2DEC -.52223476 # 512/980.402
017492,000350:
017493,000351: 37,3103 05427 12577 ALSK 2DEC .17329931 # SSWAY VEL GAIN X 980.402/4096
017494,000352:
017495,000353: 37,3105 77567 44202 2DEC -.00835370 # SSWAY ACCEL GAIN X 980.402/4096
017496,000354:
017497,000355: 37,3107 24276 14066 GEORGEJ 2DEC .63661977
017498,000356:
017499,000357: 37,3111 23073 11773 GEORGEK 2DEC .59737013
017500,000358:
End of include-file IMU_PERFORMANCE_TESTS_4.agc. Parent file is MAIN.agc