Source Code
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These source-code files are part of a reconstructed copy of Luminary 173, the
second (unflown) release of the Apollo 14 Lunar Module (LM) Apollo Guidance
Computer (AGC) software.
The reconstruction began with reconstructed source code for Luminary 178. Changes
between revision 173 and 178 were backed out, as described by Luminary memo 167
(revision 1). The reconstruction was verified by matching memory-bank checksums
to those listed in drawing 2021152N. Note that page numbers in the reconstructed
code match those for the baseline log section mentioned in each file's changelog;
the page numbers for a real Luminary 173 listing would be different.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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014117,000002: ## Copyright: Public domain.
014118,000003: ## Filename: IMU_COMPENSATION_PACKAGE.agc
014119,000004: ## Purpose: A section of Luminary revision 173.
014120,000005: ## It is part of the reconstructed source code for the second
014121,000006: ## (unflown) release of the flight software for the Lunar
014122,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 14.
014123,000008: ## The code has been recreated from a reconstructed copy of
014124,000009: ## Luminary 178, as well as Luminary memo 167 (revision 1).
014125,000010: ## It has been adapted such that the resulting bugger words
014126,000011: ## exactly match those specified for Luminary 173 in NASA
014127,000012: ## drawing 2021152N, which gives relatively high confidence
014128,000013: ## that the reconstruction is correct.
014129,000014: ## Reference: pp. 331-342
014130,000015: ## Assembler: yaYUL
014131,000016: ## Contact: Ron Burkey <info@sandroid.org>.
014132,000017: ## Website: www.ibiblio.org/apollo/index.html
014133,000018: ## Mod history: 2019-09-18 MAS Created from Luminary 178.
014134,000019:
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Page 331
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014136,000021: 07,2661 BANK 7
014137,000022: 06,2000 SETLOC IMUCOMP
014138,000023: 06,2000 BANK
014139,000024:
014140,000025: 06,3271 E3,1460 EBANK= NBDX
014141,000026:
014142,000027: 06,3271 COUNT* $$/ICOMP
014143,000028: 06,3271 33537 1/PIPA CAF LGCOMP # SAVE EBANK OF CALLING PROGRAM
014144,000029: 06,3272 56003 XCH EBANK
014145,000030: 06,3273 54163 TS MODE
014146,000031:
014147,000032: 06,3274 11477 CCS GCOMPSW # BYPASS IF GCOMPSW NEGATIVE
014148,000033: 06,3275 13300 TCF +3
014149,000034: 06,3276 13300 TCF +2
014150,000035: 06,3277 13361 TCF IRIG1 # RETURN
014151,000036:
014152,000037: 06,3300 34751 1/PIPA1 CAF FOUR # PIPAZ, PIPAY, PIPAX
014153,000038: 06,3301 54132 TS BUF +2
014154,000039:
014155,000040: 06,3302 50132 INDEX BUF +2
014156,000041: 06,3303 31453 CA PIPASCF # (P.P.M.) X 2(-9)
014157,000042: 06,3304 00006 EXTEND
014158,000043: 06,3305 50132 INDEX BUF +2
014159,000044: 06,3306 70324 MP DELVX # (PP) X 2(+14) NOW (PIPA PULSES) X 2(+5)
014160,000045: 06,3307 54002 TS Q # SAVE MAJOR PART
014161,000046:
014162,000047: 06,3310 30001 CA L # MINOR PART
014163,000048: 06,3311 00006 EXTEND
014164,000049: 06,3312 74746 MP BIT6 # SCALE 2(+9) SHIFT RIGHT 9
014165,000050: 06,3313 50132 INDEX BUF +2
014166,000051: 06,3314 54325 TS DELVX +1 # FRACTIONAL PIPA PULSES SCALED 2(+14)
014167,000052:
014168,000053: 06,3315 30002 CA Q # MAJOR PART
014169,000054: 06,3316 00006 EXTEND
014170,000055: 06,3317 74746 MP BIT6 # SCALE 2(+9) SHIFT RIGHT 9
014171,000056: 06,3320 50132 INDEX BUF +2
014172,000057: 06,3321 20325 DAS DELVX # (PIPAI) + (PIPAI)(SFE)
014173,000058:
014174,000059: 06,3322 50132 INDEX BUF +2
014175,000060: 06,3323 41452 CS PIPABIAS # (PIPA PULSES)/(CS) X 2(-3) *
014176,000061: 06,3324 00006 EXTEND
014177,000062: 06,3325 71074 MP 1/PIPADT # (CS) X 2(+8) NOW (PIPA PULSES) X 2(+5)*
014178,000063: 06,3326 00006 EXTEND
014179,000064: 06,3327 74746 MP BIT6 # SCALE 2(+9) SHIFT RIGHT 9 *
014180,000065: 06,3330 50132 INDEX BUF +2
014181,000066: 06,3331 20325 DAS DELVX # (PIPAI) + (PIPAI)(SFE) - (BIAS)(DELTAT)
014182,000067:
014183,000068: 06,3332 10132 CCS BUF +2 # PIPAZ, PIPAY, PIPAX
014184,000069: 06,3333 67752 AD NEG1
014185,000070: 06,3334 13301 TCF 1/PIPA1 +1
014186,000071:
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Page 332
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014188,000073: 06,3335 13336 NOOP # LESS THAN ZERO IMPOSSIBLE
014189,000074:
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Page 333
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014191,000076: 06,3336 55477 IRIGCOMP TS GCOMPSW # INDICATE COMMANDS 2 PULSES OR LESS.
014192,000077: 06,3337 54130 TS BUF # INDEX COUNTER . IRIGX, IRIGY, IRIGZ.
014193,000078:
014194,000079: 06,3340 03364 TC IRIGX # COMPENSATE ACCELERATION TERMS
014195,000080:
014196,000081: 06,3341 41460 CS NBDX # (GYRO PULSES)/(CS) X 2(-5)
014197,000082: 06,3342 03462 TC DRIFTSUB # -(NBOX)(DELTAT) (GYRO PULSES) X 2(+14)
014198,000083:
014199,000084: 06,3343 03401 TC IRIGY # COMPENSATE ACCELERATION TERMS
014200,000085:
014201,000086: 06,3344 41461 CS NBDY # (GYRO PULSES)/(CS) X 2(-5)
014202,000087: 06,3345 03462 TC DRIFTSUB # -(NBDY)(DELTAT) (GYRO PULSES) X 2(+14)
014203,000088:
014204,000089: 06,3346 03416 TC IRIGZ # COMPENSATE ACCELERATION TERMS
014205,000090:
014206,000091: 06,3347 31462 CA NBDZ # (GYRO PULSES)/(CS) X 2(-5)
014207,000092: 06,3350 03462 TC DRIFTSUB # +(NBDZ)(DELTAT) (GYRO PULSES) X 2(+14)
014208,000093:
014209,000094: 06,3351 11477 CCS GCOMPSW # ARE GYRO COMMANDS GREATER THAN 2 PULSES
014210,000095: 06,3352 13354 TCF +2 # YES SEND OUT GYRO TORQUING COMMANDS.
014211,000096: 06,3353 13361 TCF IRIG1 # NO RETURN
014212,000097:
014213,000098: 06,3354 35031 CA PRIO21 # PRIO GREATER THAN SERVICER
014214,000099: 06,3355 05072 TC NOVAC # SEND OUT GYRO TORQUING COMMANDS.
014215,000100: 06,3356 E3,1460 EBANK= NBDX
014216,000101: 06,3356 03515 14063 2CADR 1/GYRO
014217,000102:
014218,000103: 06,3360 00003 RELINT
014219,000104: 06,3361 30163 IRIG1 CA MODE # RESTORE CALLERS EBANK
014220,000105: 06,3362 54003 TS EBANK
014221,000106: 06,3363 14631 TCF SWRETURN
014222,000107:
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Page 334
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014224,000109: 06,3364 00006 IRIGX EXTEND
014225,000110: 06,3365 22156 QXCH MPAC +2 # SAVE Q
014226,000111: 06,3366 00006 EXTEND
014227,000112: 06,3367 40325 DCS DELVX # (PIPA PULSES) X 2(+14)
014228,000113: 06,3370 52155 DXCH MPAC
014229,000114: 06,3371 31463 CA ADIAX # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014230,000115: 06,3372 03433 TC GCOMPSUB # -(ADIAX)(PIPAX) (GYRO PULSES) X 2(+14)
014231,000116:
014232,000117: 06,3373 00006 EXTEND
014233,000118: 06,3374 40327 DCS DELVY # (PIPA PULSES) X 2(+14)
014234,000119: 06,3375 52155 DXCH MPAC
014235,000120: 06,3376 41466 CS ADSRAX # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014236,000121: 06,3377 03433 TC GCOMPSUB # -(ADSRAX)(PIPAY) (GYRO PULSES) X 2(+14)
014237,000122:
014238,000123: # EXTEND ***
014239,000124: # DCS DELVZ *** (PIPA PULSES) X 2(+14)
014240,000125: # DXCH MPAC ***
014241,000126: # CA ADOAX *** (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014242,000127: # TC GCOMPSUB *** -(ADOAX)(PIPAZ) (GYRO PULSES) X 2(+14)
014243,000128:
014244,000129: 06,3400 00156 TC MPAC +2
014245,000130:
014246,000131: 06,3401 00006 IRIGY EXTEND
014247,000132: 06,3402 22156 QXCH MPAC +2 # SAVE Q
014248,000133: 06,3403 00006 EXTEND
014249,000134: 06,3404 40327 DCS DELVY # (PIPA PULSES) X 2(+14)
014250,000135: 06,3405 52155 DXCH MPAC
014251,000136: 06,3406 31464 CA ADIAY # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014252,000137: 06,3407 03433 TC GCOMPSUB # -(ADIAY)(PIPAY) (GYRO PULSES) X 2(+14)
014253,000138:
014254,000139: 06,3410 00006 EXTEND
014255,000140: 06,3411 40331 DCS DELVZ # (PIPA PULSES) X 2(+14)
014256,000141: 06,3412 52155 DXCH MPAC
014257,000142: 06,3413 41467 CS ADSRAY # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014258,000143: 06,3414 03433 TC GCOMPSUB # +(ADSRAY)(PIPAZ) (GYRO PULSES) X 2(+14)
014259,000144:
014260,000145: # EXTEND ***
014261,000146: # DCS DELVX *** (PIPA PULSES) X 2(+14)
014262,000147: # DXCH MPAC ***
014263,000148: # CA ADOAY *** (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014264,000149: # TC GCOMPSUB *** -(ADOAY)(PIPAX) (GYRO PULSES) X 2(+14)
014265,000150:
014266,000151: 06,3415 00156 TC MPAC +2
014267,000152:
014268,000153: 06,3416 00006 IRIGZ EXTEND
014269,000154: 06,3417 22156 QXCH MPAC +2 # SAVE Q
014270,000155: 06,3420 00006 EXTEND
014271,000156: 06,3421 40327 DCS DELVY # (PIPA PULSES) X 2(+14)
014272,000157: 06,3422 52155 DXCH MPAC
014273,000158: 06,3423 31470 CA ADSRAZ # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014274,000159:
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Page 335
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014276,000161: 06,3424 03433 TC GCOMPSUB # -(ADSRAZ)(PIPAY) (GYRO PULSES) X 2(+14)
014277,000162:
014278,000163: 06,3425 00006 EXTEND
014279,000164: 06,3426 40331 DCS DELVZ # (PIPA PULSES) X 2(+14)
014280,000165: 06,3427 52155 DXCH MPAC
014281,000166: 06,3430 31465 CA ADIAZ # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014282,000167: 06,3431 03433 TC GCOMPSUB # -(ADIAZ)(PIPAZ) (GYRO PULSES) X 2(+14)
014283,000168:
014284,000169: # EXTEND ***
014285,000170: # DCS DELVX *** (PIPA PULSE) X 2(+14)
014286,000171: # DXCH MPAC ***
014287,000172: # CS ADOAZ *** (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014288,000173: # TC GCOMPSUB *** +(ADOAZ)(PIPAX) (GYRO PULSES) X 2(+14)
014289,000174:
014290,000175: 06,3432 00156 TC MPAC +2
014291,000176:
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Page 336
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014293,000178: 06,3433 56154 GCOMPSUB XCH MPAC # ADIA OR ADSRA COEFFICIENT ARRIVES IN A
014294,000179: 06,3434 00006 EXTEND # C(MPAC) = (PIPA PULSES) X 2(+14)
014295,000180: 06,3435 70154 MP MPAC # (GYRO PULSES)/(PIPA PULSE) X 2(-6) *
014296,000181: 06,3436 52123 DXCH VBUF # NOW = (GYRO PULSES) X 2(+8) *
014297,000182:
014298,000183: 06,3437 30155 CA MPAC +1 # MINOR PART PIPA PULSES
014299,000184: 06,3440 00006 EXTEND
014300,000185: 06,3441 70154 MP MPAC # ADIA OR ADSRA
014301,000186: 06,3442 54001 TS L
014302,000187: 06,3443 34755 CAF ZERO
014303,000188: 06,3444 20123 DAS VBUF # NOW = (GYRO PULSES) X 2(+8) *
014304,000189:
014305,000190: 06,3445 30122 CA VBUF # PARTIAL RESULT - MAJOR
014306,000191: 06,3446 00006 EXTEND
014307,000192: 06,3447 74743 MP BIT9 # SCALE 2(+6) SHIFT RIGHT 6 *
014308,000193: 06,3450 50130 INDEX BUF # RESULT = (GYRO PULSES) X 2(+14)
014309,000194: 06,3451 21472 DAS GCOMP # HI(ADIA)(PIPAI) OR HI(ADSRA)(PIPAI)
014310,000195:
014311,000196: 06,3452 30123 CA VBUF +1 # PARTIAL RESULT - MINOR
014312,000197: 06,3453 00006 EXTEND
014313,000198: 06,3454 74743 MP BIT9 # SCALE 2(+6) SHIFT RIGHT 6 *
014314,000199: 06,3455 54001 TS L
014315,000200: 06,3456 34755 CAF ZERO
014316,000201: 06,3457 50130 INDEX BUF # RESULT = (GYRO PULSES) X 2(+14)
014317,000202: 06,3460 21472 DAS GCOMP # (ADIA)(PIPAI) OR (ADSRA)(PIPAI)
014318,000203:
014319,000204: 06,3461 00002 TC Q
014320,000205:
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Page 337
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014322,000207: 06,3462 00006 DRIFTSUB EXTEND
014323,000208: 06,3463 22131 QXCH BUF +1
014324,000209:
014325,000210: 06,3464 00006 EXTEND # C(A) = NBD (GYRO PULSES)/(CS) X 2(-5)
014326,000211: 06,3465 71074 MP 1/PIPADT # (CS) X 2(+8) NOW (GYRO PULSES) X 2(+3)
014327,000212: 06,3466 22155 LXCH MPAC +1 # SAVE FOR FRACTIONAL COMPENSATION
014328,000213: 06,3467 00006 EXTEND
014329,000214: 06,3470 74750 MP BIT4 # SCALE 2(+11) SHIFT RIGHT 11
014330,000215: 06,3471 50130 INDEX BUF
014331,000216: 06,3472 21472 DAS GCOMP # HI(NBD)(DELTAT) (GYRO PULSES) X 2(+14)
014332,000217:
014333,000218: 06,3473 30155 CA MPAC +1 # NOW MINOR PART
014334,000219: 06,3474 00006 EXTEND
014335,000220: 06,3475 74750 MP BIT4 # SCALE 2(+11) SHIFT RIGHT 11
014336,000221: 06,3476 54001 TS L
014337,000222: 06,3477 34755 CAF ZERO
014338,000223: 06,3500 50130 INDEX BUF # ADD IN FRACTIONAL COMPENSATION
014339,000224: 06,3501 21472 DAS GCOMP # (NBD)(DELTAT) (GYRO PULSES) X 2(+14)
014340,000225:
014341,000226: 06,3502 34752 DRFTSUB2 CAF TWO # PIPAX, PIPAY, PIPAZ
014342,000227: 06,3503 60130 AD BUF
014343,000228: 06,3504 56130 XCH BUF
014344,000229: 06,3505 50000 INDEX A
014345,000230: 06,3506 11471 CCS GCOMP # ARE GYRO COMMANDS 1 PULSE OR GREATER
014346,000231: 06,3507 13511 TCF +2 # YES
014347,000232: 06,3510 00131 TC BUF +1 # NO
014348,000233:
014349,000234: 06,3511 73561 MASK COMPCHK # DEC -1
014350,000235: 06,3512 10000 CCS A # ARE GYRO COMMANDS GREATER THAN 2 PULSES
014351,000236: 06,3513 55477 TS GCOMPSW # YES - SET GCOMPSW POSITIVE
014352,000237: 06,3514 00131 TC BUF +1 # NO
014353,000238:
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Page 338
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014355,000240: 06,3515 34751 1/GYRO CAF FOUR # PIPAZ, PIPAY, PIPAX
014356,000241: 06,3516 54130 TS BUF
014357,000242:
014358,000243: 06,3517 50130 INDEX BUF # SCALE GYRO COMMANDS FOR IMUPULSE
014359,000244: 06,3520 31472 CA GCOMP +1 # FRACTIONAL PULSES
014360,000245: 06,3521 00006 EXTEND
014361,000246: 06,3522 74744 MP BIT8 # SHIFT RIGHT 7
014362,000247: 06,3523 50130 INDEX BUF
014363,000248: 06,3524 55472 TS GCOMP +1 # FRACTIONAL PULSES SCALED
014364,000249:
014365,000250: 06,3525 34755 CAF ZERO # SET GCOMP = 0 FOR DAS INSTRUCTION
014366,000251: 06,3526 50130 INDEX BUF
014367,000252: 06,3527 57471 XCH GCOMP # GYRO PULSES
014368,000253: 06,3530 00006 EXTEND
014369,000254: 06,3531 74744 MP BIT8 # SHIFT RIGHT 7
014370,000255: 06,3532 50130 INDEX BUF
014371,000256: 06,3533 21472 DAS GCOMP # ADD THESE TO FRACTIONAL PULSES ABOVE
014372,000257:
014373,000258: 06,3534 10130 CCS BUF # PIPAZ, PIPAY, PIPAX
014374,000259: 06,3535 67752 AD NEG1
014375,000260: 06,3536 13516 TCF 1/GYRO +1
014376,000261: 06,3537 01471 LGCOMP ECADR GCOMP # LESS THAN ZERO IMPOSSIBLE
014377,000262:
014378,000263: 06,3540 33537 CAF LGCOMP
014379,000264: 06,3541 04616 TC BANKCALL
014380,000265: 06,3542 17307 CADR IMUPULSE # CALL GYRO TORQUING ROUTINE
014381,000266: 06,3543 04616 TC BANKCALL
014382,000267: 06,3544 17722 CADR IMUSTALL # WAIT FOR PULSES TO GET OUT
014383,000268: 06,3545 15155 TCF ENDOFJOB # TEMPORARY
014384,000269:
014385,000270: 06,3546 34751 GCOMP1 CAF FOUR # PIPAZ, PIPAY, PIPAX
014386,000271: 06,3547 54130 TS BUF
014387,000272:
014388,000273: 06,3550 50130 INDEX BUF # RESCALE
014389,000274: 06,3551 31472 CA GCOMP +1
014390,000275: 06,3552 00006 EXTEND
014391,000276: 06,3553 74744 MP BIT8 # SHIFT MINOR PART LEFT 7 - MAJOR PART = 0
014392,000277: 06,3554 50130 INDEX BUF
014393,000278: 06,3555 23472 LXCH GCOMP +1 # BITS 8-14 OF MINOR PART WERE = 0
014394,000279:
014395,000280: 06,3556 10130 CCS BUF # PIPAZ, PIPAY, PIPAX
014396,000281: 06,3557 67752 AD NEG1
014397,000282: 06,3560 13547 TCF GCOMP1 +1
014398,000283: 06,3561 77776 COMPCHK DEC -1 B-14 # LESS THAN ZERO IMPOSSIBLE
014399,000284: 06,3562 15155 TCF ENDOFJOB
014400,000285:
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Page 339
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014402,000287: 06,3563 11477 NBDONLY CCS GCOMPSW # BYPASS IF GCOMPSW NEGATIVE
014403,000288: 06,3564 13567 TCF +3
014404,000289: 06,3565 13567 TCF +2
014405,000290: 06,3566 15155 TCF ENDOFJOB
014406,000291:
014407,000292: 06,3567 00004 INHINT
014408,000293: 06,3570 10076 CCS FLAGWRD2 # PREREAD T3RUPT MAY COINCIDE
014409,000294: 06,3571 15155 TCF ENDOFJOB
014410,000295: 06,3572 15155 TCF ENDOFJOB
014411,000296: 06,3573 13574 TCF +1
014412,000297:
014413,000298: 06,3574 30104 CA FLAGWRD8 # IF SURFACE FLAG IS SET, SET TEM1
014414,000299: 06,3575 74744 MASK BIT8 # POSITIVE SO THAT THE ACCELERATION TERMS
014415,000300: 06,3576 54141 TS TEM1 # WILL BE COMPENSATED.
014416,000301: 06,3577 00006 EXTEND
014417,000302: 06,3600 13603 BZF +3 # ARE WE ON THE SURFACE
014418,000303:
014419,000304: 06,3601 04674 TC IBNKCALL # ON THE SURFACE
014420,000305: 06,3602 77543 CADR PIPASR +3 # READ PIPAS, BUT DO NOT SCALE THEM
014421,000306:
014422,000307: 06,3603 30025 CA TIME1 # (CS) X 2(+14)
014423,000308: 06,3604 57074 XCH 1/PIPADT # PREVIOUS TIME
014424,000309: 06,3605 00003 RELINT
014425,000310: 06,3606 40000 COM
014426,000311: 06,3607 61074 AD 1/PIPADT # PRESENT TIME - PREVIOUS TIME
014427,000312: 06,3610 64736 NBD2 AD HALF # CORRECT FOR POSSIBLE TIME1 TICK
014428,000313: 06,3611 64736 AD HALF
014429,000314: 06,3612 56001 XCH L # IF TIME1 DID NOT TICK, REMOVE RESULTING
014430,000315: 06,3613 56001 XCH L # OVERFLOW.
014431,000316:
014432,000317: 06,3614 00006 NBD3 EXTEND # C(A) = DELTAT (CS) X 2(+14)
014433,000318: 06,3615 74742 MP BIT10 # SHIFT RIGHT 5
014434,000319: 06,3616 52125 DXCH VBUF +2
014435,000320:
014436,000321: 06,3617 34755 CA ZERO
014437,000322: 06,3620 55477 TS GCOMPSW # INDICATE COMMANDS 2 PULSES OR LESS.
014438,000323: 06,3621 54130 TS BUF # INDEX X, Y, Z.
014439,000324:
014440,000325: 06,3622 10141 CCS TEM1 # IF SURFACE FLAG IS SET,
014441,000326: 06,3623 03364 TC IRIGX # COMPENSATE ACCELERATION TERMS.
014442,000327:
014443,000328: 06,3624 00006 EXTEND
014444,000329: 06,3625 30125 DCA VBUF +2
014445,000330: 06,3626 52155 DXCH MPAC # DELTAT NOW SCALED (CS) X 2(+19)
014446,000331:
014447,000332: 06,3627 41460 CS NBDX # (GYRO PULSES)/(CS) X 2(-5)
014448,000333: 06,3630 03652 TC FBIASSUB # -(NBOX)(DELTAT) (GYRO PULSES) X 2(+14)
014449,000334:
014450,000335: 06,3631 10141 CCS TEM1 # IF SURFACE FLAG IS SET,
014451,000336: 06,3632 03401 TC IRIGY # COMPENSATE ACCELERATION TERMS.
014452,000337:
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Page 340
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014454,000339: 06,3633 00006 EXTEND
014455,000340: 06,3634 40125 DCS VBUF +2
014456,000341: 06,3635 52155 DXCH MPAC # DELTAT SCALED (CS) X 2(+19)
014457,000342: 06,3636 31461 CA NBDY # (GYRO PULSES)/(CS) X 2(-5)
014458,000343: 06,3637 03652 TC FBIASSUB # -(NBDY)(DELTAT) (GYRO PULSES) X 2(+14)
014459,000344:
014460,000345: 06,3640 10141 CCS TEM1 # IF SURFACE FLAG IS SET,
014461,000346: 06,3641 03416 TC IRIGZ # COMPENSATE ACCELERATION TERMS
014462,000347:
014463,000348: 06,3642 00006 EXTEND
014464,000349: 06,3643 40125 DCS VBUF +2
014465,000350: 06,3644 52155 DXCH MPAC # DELTAT SCALED (CS) X 2(+19)
014466,000351: 06,3645 41462 CS NBDZ # (GYRO PULSES)/(CS) X 2(-5)
014467,000352: 06,3646 03652 TC FBIASSUB # +(NBDZ)(DELTAT) (GYRO PULSES) X 2(+14)
014468,000353:
014469,000354: 06,3647 11477 CCS GCOMPSW # ARE GYRO COMMANDS GREATER THAN 2 PULSES
014470,000355: 06,3650 13515 TCF 1/GYRO # YES
014471,000356: 06,3651 15155 TCF ENDOFJOB # NO
014472,000357:
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Page 341
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014474,000359: 06,3652 56002 FBIASSUB XCH Q
014475,000360: 06,3653 54131 TS BUF +1
014476,000361:
014477,000362: 06,3654 30002 CA Q # NBD SCALED (GYRO PULSES)/(CS) X 2(-5)
014478,000363: 06,3655 00006 EXTEND
014479,000364: 06,3656 70154 MP MPAC # DELTAT SCALED (CS) X 2(+19)
014480,000365: 06,3657 50130 INDEX BUF
014481,000366: 06,3660 21472 DAS GCOMP # HI(NBD)(DELTAT) (GYRO PULSES) X 2(+14)
014482,000367:
014483,000368: 06,3661 30002 CA Q # NOW FRACTIONAL PART
014484,000369: 06,3662 00006 EXTEND
014485,000370: 06,3663 70155 MP MPAC +1
014486,000371: 06,3664 54001 TS L
014487,000372: 06,3665 34755 CAF ZERO
014488,000373: 06,3666 50130 INDEX BUF
014489,000374: 06,3667 21472 DAS GCOMP # (NBD)(DELTAT) (GYRO PULSES) X 2(+14)
014490,000375:
014491,000376: 06,3670 13502 TCF DRFTSUB2 # CHECK MAGNITUDE OF COMPENSATION
014492,000377:
014493,000378: 06,3671 04616 LASTBIAS TC BANKCALL
014494,000379: 06,3672 17263 CADR PIPUSE1
014495,000380:
014496,000381: 06,3673 11477 CCS GCOMPSW
014497,000382: 06,3674 13677 TCF +3
014498,000383: 06,3675 13677 TCF +2
014499,000384: 06,3676 15155 TCF ENDOFJOB
014500,000385:
014501,000386: 06,3677 30104 CA FLAGWRD8 # IF SURFACE FLAG IS SET, SET TEM1
014502,000387: 06,3700 74744 MASK SURFFBIT # POSITIVE SO THAT THE ACCELERATION TERMS
014503,000388: 06,3701 54141 TS TEM1 # WILL BE COMPENSATED.
014504,000389:
014505,000390: 06,3702 37721 CAF PRIO31 # 2 SECONDS SCALED (CS) X 2(+8)
014506,000391: 06,3703 57074 XCH 1/PIPADT
014507,000392: 06,3704 40000 COM
014508,000393: 06,3705 61234 AD PIPTIME +1
014509,000394: 06,3706 13610 TCF NBD2
014510,000395:
014511,000396: 06,3707 33537 GCOMPZER CAF LGCOMP # ROUTINE TO ZERO GCOMP BEFORE FIRST
014512,000397: 06,3710 56003 XCH EBANK # CALL TO 1/PIPA
014513,000398: 06,3711 54163 TS MODE
014514,000399:
014515,000400: 06,3712 34755 CAF ZERO
014516,000401: 06,3713 55477 TS GCOMPSW
014517,000402: 06,3714 55471 TS GCOMP
014518,000403: 06,3715 55472 TS GCOMP +1
014519,000404: 06,3716 55473 TS GCOMP +2
014520,000405: 06,3717 55474 TS GCOMP +3
014521,000406: 06,3720 55475 TS GCOMP +4
014522,000407:
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Page 342
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014524,000409: 06,3721 55476 TS GCOMP +5
014525,000410:
014526,000411: 06,3722 13361 TCF IRIG1 # RESTORE EBANK AND RETURN
014527,000412:
End of include-file IMU_COMPENSATION_PACKAGE.agc. Parent file is MAIN.agc