Source Code
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These source-code files derive from a printout of Luminary 116 (the Apollo 12
Lunar Module guidance computer program), from the personal library of
original AGC developer Don Eyles, digitally photographed at archive.org,
financially sponsored by Ron Burkey, and transcribed to source code by a
team of volunteers. This colorized, syntax-highlighted form was created
by assembling that transcribed source code. Note that the full page images
are available on the
Virtual AGC project page at archive.org, while reduced-size images
are presented at the VirtualAGC project website. Report or fix any
transcription errors at
the Virtual AGC project code repository. Notations on the program listing read, in part: GAP: ASSEMBLE REVISION 116 OF AGC PROGRAM LUMINARY BY NASA 2021112-071 19:09 AUG. 11,1969Note that the date is the date of the printout, not the date of the program revision. |
036036,000002: ## Copyright: Public domain.
036037,000003: ## Filename: ASCENT_GUIDANCE.agc
036038,000004: ## Purpose: A section of Luminary revision 116.
036039,000005: ## It is part of the source code for the Lunar Module's (LM)
036040,000006: ## Apollo Guidance Computer (AGC) for Apollo 12.
036041,000007: ## This file is intended to be a faithful transcription, except
036042,000008: ## that the code format has been changed to conform to the
036043,000009: ## requirements of the yaYUL assembler rather than the
036044,000010: ## original YUL assembler.
036045,000011: ## Reference: pp. 836-851
036046,000012: ## Assembler: yaYUL
036047,000013: ## Contact: Ron Burkey <info@sandroid.org>.
036048,000014: ## Website: www.ibiblio.org/apollo/index.html
036049,000015: ## Mod history: 2017-01-22 MAS Created from Luminary 99.
036050,000016: ## 2017-03-14 RSB Comment-text fixes identified in 5-way
036051,000017: ## side-by-side diff of Luminary 69/99/116/131/210.
036052,000018: ## 2017-03-15 HG Transcribed
036053,000019:
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Page 836 |
036055,000021: 34,3372 BANK 34
036056,000022: 34,2000 SETLOC ASCFILT
036057,000023: 34,2000 BANK
036058,000024:
036059,000025: 34,3372 E7,1515 EBANK= DVCNTR
036060,000026:
036061,000027: 34,3372 COUNT* $$/ASENT
036062,000028:
036063,000029: 34,3372 05353 ATMAG TC PHASCHNG
036064,000030: 34,3373 00035 OCT 00035
036065,000031: 34,3374 06042 TC INTPRET
036066,000032: 34,3375 77614 BON
036067,000033: 34,3376 04705 FLRCS
036068,000034: 34,3377 60315 ASCENT
036069,000035: 34,3400 45345 DLOAD DSU
036070,000036: 34,3401 03514 ABDVCONV
036071,000037: 34,3402 26203 MINABDV
036072,000038: 34,3403 43040 BMN CLEAR
036073,000039: 34,3404 60756 ASCTERM4
036074,000040: 34,3405 04267 SURFFLAG
036075,000041: 34,3406 67214 CLEAR SLOAD
036076,000042: 34,3407 02676 RENDWFLG
036077,000043: 34,3410 31446 BIT3H
036078,000044: 34,3411 77471 DDV EXIT
036079,000045: 34,3412 03514 ABDVCONV
036080,000046: 34,3413 52155 DXCH MPAC
036081,000047: 34,3414 53641 DXCH 1/DV3
036082,000048: 34,3415 53637 DXCH 1/DV2
036083,000049: 34,3416 53635 DXCH 1/DV1
036084,000050: 34,3417 53571 DXCH 1/DV0
036085,000051: 34,3420 06042 TC INTPRET
036086,000052: 34,3421 43345 DLOAD DAD
036087,000053: 34,3422 03571 1/DV0
036088,000054: 34,3423 03635 1/DV1
036089,000055: 34,3424 43215 DAD DAD
036090,000056: 34,3425 03637 1/DV2
036091,000057: 34,3426 03641 1/DV3
036092,000058: 34,3427 41205 DMP DMP
036093,000059: 34,3430 02265 VE
036094,000060: 34,3431 21017 2SEC(9)
036095,000061: 34,3432 65252 SL3 PDDL
036096,000062: 34,3433 02271 TBUP
036097,000063: 34,3434 43342 SR1 DAD
036098,000064: 34,3435 77625 DSU
036099,000065: 34,3436 21014 6SEC(18)
036100,000066: 34,3437 16271 STODL TBUP
036101,000067: 34,3440 02265 VE
036102,000068: 34,3441 56342 SR1 DDV
036103,000069: 34,3442 02271 TBUP
036104,000070: 34,3443 36263 STCALL AT
036105,000071:
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Page 837 |
036107,000073: 34,3444 60315 ASCENT
036108,000074: 34,3445 00004 BIT3H OCT 4
036109,000075:
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Page 838 |
036111,000077: 30,2315 BANK 30
036112,000078: 30,2000 SETLOC ASENT
036113,000079: 30,2000 BANK
036114,000080: 30,2315 COUNT* $$/ASENT
036115,000081:
036116,000082: 30,2315 51575 ASCENT VLOAD ABVAL
036117,000083: 30,2316 03521 R
036118,000084: 30,2317 26301 STOVL /R/MAG
036119,000085: 30,2320 03726 ZAXIS1
036120,000086: 30,2321 72441 DOT SL1
036121,000087: 30,2322 03527 V # Z.V = ZDOT*2(-8).
036122,000088: 30,2323 26313 STOVL ZDOT # ZDOT*2(-7)
036123,000089: 30,2324 03726 ZAXIS1
036124,000090: 30,2325 76435 VXV VSL1
036125,000091: 30,2326 03537 UNIT/R/ # Z X UR = LAXIS*2(-2)
036126,000092: 30,2327 02303 STORE LAXIS # LAXIS*2(-1)
036127,000093: 30,2330 72441 DOT SL1
036128,000094: 30,2331 03527 V # L.V = YDOT*2(-8).
036129,000095: 30,2332 36311 STCALL YDOT # YDOT * 2(-7)
036130,000096: 30,2333 57312 YCOMP
036131,000097: 30,2334 77775 VLOAD
036132,000098: 30,2335 03563 GDT1/2 # LOAD GDT1/2*2(-7)M/CS.
036133,000099: 30,2336 50341 V/SC DOT
036134,000100: 30,2337 27106 2SEC(18)
036135,000101: 30,2340 03537 UNIT/R/ # G.UR*2(9) = GR*2(9).
036136,000102: 30,2341 47315 PDVL VXV # STORE IN PDL(0) (2)
036137,000103: 30,2342 03537 UNIT/R/ # LOAD UNIT/R/*2(-1).
036138,000104: 30,2343 03527 V # UR*2(-1) X V*2(-7) = H/R*2(-8).
036139,000105: 30,2344 56236 VSQ DDV # H(2)/R(2)*2(-16).
036140,000106: 30,2345 02301 /R/MAG # H(2)/R(3)*2(9).
036141,000107: 30,2346 43352 SL1 DAD
036142,000108: 30,2347 77626 STADR
036143,000109: 30,2350 75462 STORE GEFF # GEFF*2(10)M/CS/CS.
036144,000110: 30,2351 45014 BOFF CALL # IF P7071FLG = 1 (I.E. P70 OR P71)
036145,000111: 30,2352 04742 P7071FLG # CALL ZDOTCOMP TO UPDATE ZDOTD
036146,000112: 30,2353 60355 +2 # ON THE BASIS OF THE LAST RP.
036147,000113: 30,2354 71524 ZDOTCOMP
036148,000114: 30,2355 45345 +2 DLOAD DSU
036149,000115: 30,2356 02277 ZDOTD
036150,000116: 30,2357 02313 ZDOT
036151,000117: 30,2360 02343 STORE DZDOT # DZDOT = (ZDOTD - ZDOT)*2(7)M/CS.
036152,000118: 30,2361 65361 VXSC PDDL
036153,000119: 30,2362 03726 ZAXIS1
036154,000120: 30,2363 02275 YDOTD
036155,000121: 30,2364 77625 DSU
036156,000122: 30,2365 02311 YDOT
036157,000123:
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Page 839 |
036159,000125: 30,2366 02341 STORE DYDOT # DYDOT = (YDOTD - YDOT)*2(7)M/CS.
036160,000126: 30,2367 65361 VXSC PDDL
036161,000127: 30,2370 02303 LAXIS
036162,000128: 30,2371 02273 RDOTD
036163,000129: 30,2372 77625 DSU
036164,000130: 30,2373 03474 RDOT
036165,000131: 30,2374 02337 STORE DRDOT # DRDOT = (RDOTD - RDOT)*2(7)M/CS.
036166,000132: 30,2375 53361 VXSC VAD
036167,000133: 30,2376 03537 UNIT/R/
036168,000134: 30,2377 76455 VAD VSL1
036169,000135: 30,2400 77626 STADR
036170,000136: 30,2401 74131 STORE VGVECT # VG = (DRDOT)R + (DYDOT)L + (DZDOT)Z.
036171,000137: 30,2402 41345 DLOAD DMP # LOAD TGO
036172,000138: 30,2403 03517 TGO # TGO GEFF
036173,000139: 30,2404 02315 GEFF
036174,000140: 30,2405 76561 VXSC VSL1
036175,000141: 30,2406 03537 UNIT/R/ # TGO GEFF UR
036176,000142: 30,2407 77645 BVSU
036177,000143: 30,2410 03646 VGVECT # COMPENSATED FOR GEFF
036178,000144: 30,2411 03646 STORE VGVECT # STORE FOR DOWNLINK
036179,000145: 30,2412 76521 MXV VSL1 # GET VGBODY FOR N85 DISPLAY
036180,000146: 30,2413 02146 XNBPIP
036181,000147: 30,2414 27502 STOVL VGBODY
036182,000148: 30,2415 03646 VGVECT
036183,000149: 30,2416 43046 ABVAL BOFF # MAGNITUDE OF VGVECT
036184,000150: 30,2417 04745 FLRCS # IF FLRCS=0,DO NORMAL GUIDANCE
036185,000151: 30,2420 60427 MAINENG
036186,000152: 30,2421 77671 DDV # USE TGO=VG/AT WITH RCS
036187,000153: 30,2422 20001 AT/RCS
036188,000154: 30,2423 37517 STCALL TGO # THIS WILL BE USED ON NEXT CYCLE
036189,000155: 30,2424 71475 RPCOMP1 # COMPUTE NEW RR FOR NEXT CYCLE.
036190,000156: 30,2425 77650 GOTO
036191,000157: 30,2426 60754 ASCTERM2
036192,000158: 30,2427 41471 MAINENG DDV PUSH # VG/VE IN PDL(0) (2)
036193,000159: 30,2430 02265 VE
036194,000160: 30,2431 44342 SR1 BDSU # 1 - KT VG/VE
036195,000161: 30,2432 17771 NEARONE
036196,000162: 30,2433 41205 DMP DMP # TBUP VG(1-KT VG/VE)/VE (0)
036197,000163: 30,2434 02271 TBUP # = TGO
036198,000164: 30,2435 77625 DSU # COMPENSATE FOR TAILOFF
036199,000165: 30,2436 02267 TTO
036200,000166: 30,2437 03517 STORE TGO
036201,000167: 30,2440 57461 SR DCOMP
036202,000168: 30,2441 20614 11D
036203,000169: 30,2442 17454 STODL TTOGO # TGO*2(-28) CS
036204,000170: 30,2443 03517 TGO
036205,000171: 30,2444 45214 BON DSU
036206,000172: 30,2445 03710 IDLEFLAG
036207,000173: 30,2446 60452 T2TEST
036208,000174: 30,2447 21006 4SEC(17) # ( TGO - 4 )*2(-17)CS.
036209,000175:
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Page 840 |
036211,000177: 30,2450 77640 BMN
036212,000178: 30,2451 30347 ENGOFF
036213,000179: 30,2452 77745 T2TEST DLOAD
036214,000180: 30,2453 03517 TGO
036215,000181: 30,2454 50025 DSU BMN # IF TGO - T2 NEG., GO TO CMPONENT
036216,000182: 30,2455 21010 T2A
036217,000183: 30,2456 60612 CMPONENT
036218,000184: 30,2457 45345 DLOAD DSU
036219,000185: 30,2460 02271 TBUP
036220,000186: 30,2461 03517 TGO
036221,000187: 30,2462 45071 DDV CALL # 1-TGO/TBUP
036222,000188: 30,2463 02271 TBUP
036223,000189: 30,2464 61023 LOGSUB
036224,000190: 30,2465 41461 SL PUSH # -L IN PDL(0) (2)
036225,000191: 30,2466 20206 5
036226,000192: 30,2467 44265 BDDV BDSU # -TGO/L*2(-17)
036227,000193: 30,2470 03517 TGO
036228,000194: 30,2471 02271 TBUP # TBUP + TGO/L = D12*2(-17)
036229,000195: 30,2472 43006 PUSH BON # STORE IN PDL(2) (4)
036230,000196: 30,2473 04703 FLPC # IF FLPC = 1, GO TO CONST
036231,000197: 30,2474 60503 NORATES
036232,000198: 30,2475 45345 DLOAD DSU
036233,000199: 30,2476 03517 TGO
036234,000200: 30,2477 21012 T3
036235,000201: 30,2500 43044 BPL SET # FLPC=1
036236,000202: 30,2501 60510 RATES
036237,000203: 30,2502 04463 FLPC
036238,000204: 30,2503 77745 NORATES DLOAD
036239,000205: 30,2504 06524 HI6ZEROS
036240,000206: 30,2505 02351 STORE PRATE # B = 0
036241,000207: 30,2506 36353 STCALL YRATE # D = 0
036242,000208: 30,2507 60572 CONST # GO TO CONST
036243,000209: 30,2510 45345 RATES DLOAD DSU
036244,000210: 30,2511 03517 TGO
036245,000211: 30,2512 00003 02D # TGO - D12 = D21*2(-17)
036246,000212: 30,2513 72406 PUSH SL1 # IN PDL(4) (6)
036247,000213: 30,2514 52421 BDSU SL3 # (1/2TGO - D21)*2(-13) = E * 2(-13)
036248,000214: 30,2515 03517 TGO # (8)
036249,000215: 30,2516 41325 PDDL DMP # IN PDL(6)
036250,000216: 30,2517 03517 TGO
036251,000217: 30,2520 03474 RDOT # RDOT TGO * 2(-24)
036252,000218: 30,2521 45215 DAD DSU # R + RDOT TGO
036253,000219: 30,2522 02301 /R/MAG # R + RDOT TGO - RCO
036254,000220: 30,2523 03631 RCO # MPAC = -DR *2(-24).
036255,000221: 30,2524 41325 PDDL DMP # -DR IN PDL(8) (10)
036256,000222: 30,2525 02337 DRDOT
036257,000223: 30,2526 00005 04D # D21 DRDOT*2(-24)
036258,000224: 30,2527 62415 DAD SL2 # (D21 DRDOT-DR)*2(-22) (8)
036259,000225: 30,2530 56271 DDV DDV
036260,000226: 30,2531 00007 06D # (D21 DRDOT-DR)/E*2(-9)
036261,000227:
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Page 841 |
036263,000229: 30,2532 03517 TGO
036264,000230: 30,2533 02351 STORE PRATE # B * 2(8)
036265,000231: 30,2534 71240 BMN DLOAD # B>0 NOT PERMITTED
036266,000232: 30,2535 60541 CHKBMAG
036267,000233: 30,2536 06524 HI6ZEROS
036268,000234: 30,2537 36351 STCALL PRATE
036269,000235: 30,2540 60553 PROK
036270,000236: 30,2541 56202 CHKBMAG SR4 DDV # B*2(4)
036271,000237: 30,2542 02271 TBUP # (B / TAU) * 2(21)
036272,000238: 30,2543 51025 DSU BPL
036273,000239: 30,2544 26201 PRLIMIT # ( B/ TAU) * 2(21) MAX.
036274,000240: 30,2545 60553 PROK
036275,000241: 30,2546 41345 DLOAD DMP
036276,000242: 30,2547 26201 PRLIMIT
036277,000243: 30,2550 02271 TBUP # B MAX. * 2(4)
036278,000244: 30,2551 77612 SL4 # BMAX*2(8)
036279,000245: 30,2552 02351 STORE PRATE
036280,000246: 30,2553 77745 PROK DLOAD
036281,000247: 30,2554 03517 TGO
036282,000248: 30,2555 43205 DMP DAD # YDOT TGO
036283,000249: 30,2556 02311 YDOT
036284,000250: 30,2557 02335 Y # Y + YDOT TGO
036285,000251: 30,2560 65225 DSU PDDL # Y + YDOT TGO - YCO
036286,000252: 30,2561 03633 YCO # MPAC = - DY*2(-24.) IN PDL(8) (10)
036287,000253: 30,2562 02341 DYDOT
036288,000254: 30,2563 43205 DMP DAD # D21 DYDOT - DY (8)
036289,000255: 30,2564 00005 04D
036290,000256: 30,2565 56312 SL2 DDV # (D21 DYDOT - DY)/E*2(-9)
036291,000257: 30,2566 40271 DDV SETPD # (D21 DYDOT - DY)/E TGO*2(8)
036292,000258: 30,2567 03517 TGO # = D*2(8)
036293,000259: 30,2570 00005 04
036294,000260: 30,2571 02353 STORE YRATE
036295,000261: 30,2572 41345 CONST DLOAD DMP # LOAD B*2(8)
036296,000262: 30,2573 02351 PRATE # B D12*2(-9)
036297,000263: 30,2574 00003 02D
036298,000264: 30,2575 56325 PDDL DDV # D12 B IN PDL(4) (6)
036299,000265: 30,2576 02337 DRDOT # LOAD DRDOT*2(-7)
036300,000266: 30,2577 00001 00D # -DRDOT/L*2(-7)
036301,000267: 30,2600 45302 SR2 DSU # (-DRDOT/L-D12 B)=A*2(-9) (4)
036302,000268: 30,2601 77626 STADR
036303,000269: 30,2602 61432 STODL PCONS
036304,000270: 30,2603 02353 YRATE # D*2(8)
036305,000271: 30,2604 65205 DMP PDDL # D12 D,EXCH WITH -L IN PDL(0) (2,2)
036306,000272: 30,2605 60465 BDDV SR2 # -DYDOT/L*2(-9)
036307,000273: 30,2606 02341 DYDOT
036308,000274: 30,2607 77625 DSU # (-DYDOT/L-D12 D)=C*2(-9)
036309,000275: 30,2610 00001 00D
036310,000276: 30,2611 02347 STORE YCONS
036311,000277: 30,2612 43001 CMPONENT SETPD BOFF
036312,000278: 30,2613 00001 00D
036313,000279:
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Page 842 |
036315,000281: 30,2614 04742 P7071FLG
036316,000282: 30,2615 60620 +3 # IF P7071FLG = 1 (I.E. P70 OR P71)
036317,000283: 30,2616 77624 CALL # COMPUTE NEW RP FOR NEXT CYCLE.
036318,000284: 30,2617 71501 RPCOMP2
036319,000285: 30,2620 41345 +3 DLOAD DMP
036320,000286: 30,2621 27106 100CS
036321,000287: 30,2622 02351 PRATE # B(T-T0)*2(-9)
036322,000288: 30,2623 56215 DAD DDV # (A+B(T-T0))*2(-9)
036323,000289: 30,2624 02345 PCONS # (A+B(T-T0))/TBUP*2(8)
036324,000290: 30,2625 02271 TBUP
036325,000291: 30,2626 45352 SL1 DSU
036326,000292: 30,2627 02315 GEFF # ATR*2(9)
036327,000293: 30,2630 16357 STODL ATR
036328,000294: 30,2631 27106 100CS
036329,000295: 30,2632 43205 DMP DAD
036330,000296: 30,2633 02353 YRATE
036331,000297: 30,2634 02347 YCONS # (C+D(T-T0))*2(-9)
036332,000298: 30,2635 72471 DDV SL1
036333,000299: 30,2636 02271 TBUP
036334,000300: 30,2637 02355 STORE ATY # ATY*2(9)
036335,000301: 30,2640 65361 VXSC PDDL # ATY UY*2(8) (6)
036336,000302: 30,2641 02303 LAXIS
036337,000303: 30,2642 02357 ATR
036338,000304: 30,2643 53361 VXSC VAD # (0)
036339,000305: 30,2644 03537 UNIT/R/
036340,000306: 30,2645 41572 VSL1 PUSH # AH*2(9) IN PDL(0) (6)
036341,000307: 30,2646 65246 ABVAL PDDL # AH(2) IN PDL(34)
036342,000308: 30,2647 02263 AT # AHMAG IN PDL(6) (8)
036343,000309: 30,2650 45316 DSQ DSU # (AT(2)-AH(2))*2(18)
036344,000310: 30,2651 00043 34D # =ATP2*2(18)
036345,000311: 30,2652 41525 PDDL PUSH # (12)
036346,000312: 30,2653 02263 AT
036347,000313: 30,2654 45316 DSQ DSU # (AT(2)KR(2)-AH(2))*2(18) (10)
036348,000314: 30,2655 00043 34D # =ATP3*2(18)
036349,000315: 30,2656 71240 BMN DLOAD # IF ATP3 NEG,GO TO NO-ATP
036350,000316: 30,2657 60663 NO-ATP # LOAD ATP2,IF ATP3 POS
036351,000317: 30,2660 00011 8D
036352,000318: 30,2661 52166 SQRT GOTO # ATP*2(9)
036353,000319: 30,2662 60671 AIMER
036354,000320: 30,2663 55345 NO-ATP DLOAD BDDV # KR AT/AH = KH (8)
036355,000321: 30,2664 00007 6D
036356,000322: 30,2665 77761 VXSC # KH AH*2(9)
036357,000323: 30,2666 00001 00D
036358,000324: 30,2667 14001 STODL 00D # STORE NEW AH IN PDL(0)
036359,000325: 30,2670 06524 HI6ZEROS
036360,000326: 30,2671 77765 AIMER SIGN
036361,000327: 30,2672 02343 DZDOT
036362,000328: 30,2673 02361 STORE ATP
036363,000329: 30,2674 77761 VXSC
036364,000330: 30,2675 03726 ZAXIS1 # ATP ZAXIS *2(8).
036365,000331:
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Page 843 |
036367,000333: 30,2676 53372 VSL1 VAD # AT*2(9)
036368,000334: 30,2677 00001 00D
036369,000335: 30,2700 03254 STORE UNFC/2 # WILL BE OVERWRITTEN IF IN VERT. RISE.
036370,000336: 30,2701 43001 SETPD BON
036371,000337: 30,2702 00001 00D
036372,000338: 30,2703 04704 FLPI
036373,000339: 30,2704 60216 P12RET
036374,000340: 30,2705 77614 BON
036375,000341: 30,2706 04701 FLVR
036376,000342: 30,2707 60763 CHECKALT
036377,000343: 30,2710 57575 MAINLINE VLOAD VCOMP
036378,000344: 30,2711 03537 UNIT/R/
036379,000345: 30,2712 17262 STODL UNWC/2
036380,000346: 30,2713 03654 TXO
036381,000347: 30,2714 51025 DSU BPL
036382,000348: 30,2715 01234 PIPTIME
036383,000349: 30,2716 60730 ASCTERM
036384,000350: 30,2717 77614 BON
036385,000351: 30,2720 04711 ROTFLAG
036386,000352: 30,2721 57273 ANG1CHEK
036387,000353: 30,2722 43014 CLRXFLAG CLEAR BON # ALLOW X-AXIS OVERRIDE
036388,000354: 30,2723 06666 XOVINFLG
036389,000355: 30,2724 04702 P7071FLG # ONLY ACTIVATE R29 IF IN P12
036390,000356: 30,2725 60730 ASCTERM
036391,000357: 30,2726 77614 CLEAR
036392,000358: 30,2727 01664 NOR29FLG
036393,000359: 30,2730 77776 ASCTERM EXIT
036394,000360: 30,2731 30105 CA FLAGWRD9
036395,000361: 30,2732 74742 MASK FLRCSBIT
036396,000362: 30,2733 10000 CCS A
036397,000363: 30,2734 12755 TCF ASCTERM3
036398,000364: 30,2735 06042 TC INTPRET
036399,000365: 30,2736 77624 CALL
036400,000366: 30,2737 61076 FINDCDUW -2
036401,000367: 30,2740 77776 ASCTERM1 EXIT
036402,000368: 30,2741 30105 +1 CA FLAGWRD9 # INSURE THAT THE NOUN 63 DISPLAY IS
036403,000369: 30,2742 74742 MASK FLRCSBIT # BYPASSED IF WE ARE IN THE RCS TRIMMING
036404,000370: 30,2743 10000 CCS A # MODE OF OPERATION
036405,000371: 30,2744 12755 TCF ASCTERM3
036406,000372: 30,2745 30104 CA FLAGWRD8 # BYPASS DISPLAYS IF ENGINE FAILURE IS
036407,000373: 30,2746 74742 MASK FLUNDBIT # INDICATED.
036408,000374: 30,2747 10000 CCS A
036409,000375: 30,2750 12755 TCF ASCTERM3
036410,000376: 30,2751 33020 CAF V06N63*
036411,000377: 30,2752 04616 TC BANKCALL
036412,000378: 30,2753 20444 CADR GODSP
036413,000379: 30,2754 77776 ASCTERM2 EXIT
036414,000380: 30,2755 15155 ASCTERM3 TCF ENDOFJOB
036415,000381: 30,2756 77776 ASCTERM4 EXIT
036416,000382: 30,2757 00004 INHINT
036417,000383:
![]() |
Page 844 |
036419,000385: 30,2760 04674 TC IBNKCALL # NO GUIDANCE THIS CYCLE -- HENCE ZERO
036420,000386: 30,2761 40166 CADR STOPRATE # THE DAP COMMANDED RATES.
036421,000387: 30,2762 12741 TCF ASCTERM1 +1
036422,000388:
036423,000389: 30,2763 45345 CHECKALT DLOAD DSU
036424,000390: 30,2764 02301 /R/MAG
036425,000391: 30,2765 02333 /LAND/
036426,000392: 30,2766 50025 DSU BMN # IF H LT 25K CHECK Z AXIS ORIENTATION.
036427,000393: 30,2767 26205 25KFT
036428,000394: 30,2770 16667 CHECKYAW
036429,000395: 30,2771 43014 EXITVR CLEAR BON
036430,000396: 30,2772 04661 FLVR
036431,000397: 30,2773 04711 ROTFLAG
036432,000398: 30,2774 60710 MAINLINE
036433,000399: 30,2775 43345 DLOAD DAD
036434,000400: 30,2776 01234 PIPTIME
036435,000401: 30,2777 25747 10SECS
036436,000402: 30,3000 37654 STCALL TXO
036437,000403: 30,3001 60710 MAINLINE
036438,000404: 30,3002 77614 EXITVR1 CLRGO
036439,000405: 30,3003 04631 ROTFLAG
036440,000406: 30,3004 60771 EXITVR
036441,000407:
036442,000408: 27,2000 SETLOC ASENT1
036443,000409: 27,2000 BANK
036444,000410: 27,3273 COUNT* $$/ASENT
036445,000411:
036446,000412: 27,3273 50375 ANG1CHEK VLOAD DOT
036447,000413: 27,3274 03254 UNFC/2
036448,000414: 27,3275 02146 XNBPIP
036449,000415: 27,3276 51025 DSU BPL
036450,000416: 27,3277 02571 COSTHET1
036451,000417: 27,3300 57307 OFFROT
036452,000418: 27,3301 50375 VLOAD DOT
036453,000419: 27,3302 02146 XNBPIP
036454,000420: 27,3303 03537 UNIT/R/
036455,000421: 27,3304 50025 DSU BMN
036456,000422: 27,3305 02573 COSTHET2
036457,000423: 27,3306 71450 KEEPVR1
036458,000424: 27,3307 77614 OFFROT CLRGO
036459,000425: 27,3310 04631 ROTFLAG
036460,000426: 27,3311 60722 CLRXFLAG
036461,000427:
036462,000428: 07,2667 BANK 7
036463,000429: 07,2000 SETLOC ASENT2
036464,000430: 07,2000 BANK
036465,000431: 07,2667 COUNT* $$/ASENT
036466,000432:
036467,000433: 07,2667 07,2667 SETXFLAG = CHECKYAW
036468,000434:
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Page 845 |
036470,000436: 07,2667 77614 CHECKYAW SET
036471,000437: 07,2670 06466 XOVINFLG # PROHIBIT X-AXIS OVERRIDE
036472,000438: 07,2671 74345 DLOAD VXSC
036473,000439: 07,2672 02355 ATY
036474,000440: 07,2673 02303 LAXIS
036475,000441: 07,2674 74325 PDDL VXSC
036476,000442: 07,2675 02361 ATP
036477,000443: 07,2676 03726 ZAXIS1
036478,000444: 07,2677 53455 VAD UNIT
036479,000445: 07,2700 45325 PDDL DSU
036480,000446: 07,2701 03474 RDOT
036481,000447: 07,2702 13471 40FPS
036482,000448: 07,2703 52044 BPL GOTO
036483,000449: 07,2704 61002 EXITVR1
036484,000450: 07,2705 71446 KEEPVR
036485,000451:
036486,000452: 05,3470 BANK 5
036487,000453: 05,2000 SETLOC ASENT3
036488,000454: 05,2000 BANK
036489,000455: 05,3470 COUNT* $$/ASENT
036490,000456:
036491,000457: 05,3470 00017 23305 40FPS 2DEC 0.12192 B-7
036492,000458: 34,3446 BANK 34
036493,000459: 34,2000 SETLOC ASENT8
036494,000460: 34,2000 BANK
036495,000461: 34,3446 COUNT* $$/ASENT
036496,000462:
036497,000463: 34,3446 45575 KEEPVR VLOAD STADR # RECALL LOSVEC FROM PUSHLIST
036498,000464: 34,3447 74515 STORE UNWC/2
036499,000465: 34,3450 77775 KEEPVR1 VLOAD
036500,000466: 34,3451 03537 UNIT/R/
036501,000467: 34,3452 37254 STCALL UNFC/2
036502,000468: 34,3453 60730 ASCTERM
036503,000469:
036504,000470:
036505,000471: 14,2347 BANK 14
036506,000472: 14,2000 SETLOC ASENT4
036507,000473: 14,2000 BANK
036508,000474: 14,2347 COUNT* $$/ASENT
036509,000475:
036510,000476: 14,2347 77634 ENGOFF RTB
036511,000477: 14,2350 21574 LOADTIME
036512,000478: 14,2351 43225 DSU DAD
036513,000479: 14,2352 01234 PIPTIME
036514,000480: 14,2353 03454 TTOGO
036515,000481: 14,2354 77476 DCOMP EXIT
036516,000482: 14,2355 07262 TC TPAGREE # FORCE SIGN AGREEMENT ON MPAC, MPAC +1.
036517,000483: 14,2356 35016 CAF EBANK7
036518,000484: 14,2357 54003 TS EBANK
036519,000485:
![]() |
Page 846 |
036521,000487: 14,2360 E7,1516 EBANK= TGO
036522,000488: 14,2360 00004 INHINT
036523,000489: 14,2361 10155 CCS MPAC +1
036524,000490: 14,2362 12365 TCF +3 # C(A) = DT - 1 BIT
036525,000491: 14,2363 12365 TCF +2 # C(A) = 0
036526,000492: 14,2364 34755 CAF ZERO # C(A) = 0
036527,000493: 14,2365 64753 AD BIT1 # C(A) = 1 BIT OR DT.
036528,000494: 14,2366 55644 TS ENGOFFDT
036529,000495: 14,2367 05173 TC TWIDDLE
036530,000496: 14,2370 02402 ADRES ENGOFF1
036531,000497: 14,2371 05353 TC PHASCHNG
036532,000498: 14,2372 47014 OCT 47014
036533,000499: 14,2373 76133 -GENADR ENGOFFDT
036534,000500: 14,2374 E7,1516 EBANK= TGO
036535,000501: 14,2374 02402 30067 2CADR ENGOFF1
036536,000502:
036537,000503: 14,2376 06042 TC INTPRET
036538,000504: 14,2377 52014 SET GOTO
036539,000505: 14,2400 03470 IDLEFLAG # DISABLE DELTA-V MONITOR
036540,000506: 14,2401 60452 T2TEST
036541,000507:
036542,000508: 14,2402 04674 ENGOFF1 TC IBNKCALL # SHUT OFF THE ENGINE.
036543,000509: 14,2403 75555 CADR ENGINOF2
036544,000510:
036545,000511: 14,2404 35027 CAF PRIO17 # SET UP A JOB FOR THE ASCENT GUIDANCE
036546,000512: 14,2405 05105 TC FINDVAC # POSTBURN LOGIC.
036547,000513: 14,2406 E7,1455 EBANK= WHICH
036548,000514: 14,2406 02416 30067 2CADR CUTOFF
036549,000515:
036550,000516: 14,2410 05353 TC PHASCHNG
036551,000517: 14,2411 07024 OCT 07024
036552,000518: 14,2412 17000 OCT 17000
036553,000519: 14,2413 E7,1516 EBANK= TGO
036554,000520: 14,2413 02416 30067 2CADR CUTOFF
036555,000521:
036556,000522: 14,2415 15261 TCF TASKOVER
036557,000523:
036558,000524: 14,2416 05504 CUTOFF TC UPFLAG # SET FLRCS FLAG.
036559,000525: 14,2417 00214 ADRES FLRCS
036560,000526:
036561,000527: 14,2420 32437 -5 CAF V16N63
036562,000528: 14,2421 04616 TC BANKCALL
036563,000529: 14,2422 20477 CADR GOFLASH
036564,000530: 14,2423 12426 TCF +3
036565,000531: 14,2424 12430 TCF CUTOFF1
036566,000532: 14,2425 12420 TCF -5
036567,000533:
036568,000534: 14,2426 04635 +3 TC POSTJUMP
036569,000535: 14,2427 71464 CADR TERMASC
036570,000536:
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Page 847 |
036572,000538:
036573,000539: 14,2430 00004 CUTOFF1 INHINT
036574,000540: 14,2431 04674 TC IBNKCALL # ZERO ATTITUDE ERRORS BEFORE REDUCING DB.
036575,000541: 14,2432 40154 CADR ZATTEROR
036576,000542: 14,2433 04674 TC IBNKCALL
036577,000543: 14,2434 40141 CADR SETMINDB
036578,000544: 14,2435 04635 TC POSTJUMP
036579,000545: 14,2436 71454 CADR CUTOFF2
036580,000546:
036581,000547: 14,2437 04077 V16N63 VN 1663
036582,000548: 34,3454 BANK 34
036583,000549: 34,2000 SETLOC ASENT8
036584,000550: 34,2000 BANK
036585,000551: 34,3454 COUNT* $$/ASENT
036586,000552:
036587,000553: 34,3454 05353 CUTOFF2 TC PHASCHNG
036588,000554: 34,3455 04024 OCT 04024
036589,000555:
036590,000556: 34,3456 33474 CAF V16N85C
036591,000557: 34,3457 04616 TC BANKCALL
036592,000558: 34,3460 20477 CADR GOFLASH
036593,000559: 34,3461 13464 TCF TERMASC
036594,000560: 34,3462 13464 TCF +2 # PROCEED
036595,000561: 34,3463 13454 TCF CUTOFF2
036596,000562:
036597,000563: 34,3464 05353 TERMASC TC PHASCHNG
036598,000564: 34,3465 04024 OCT 04024
036599,000565:
036600,000566: 34,3466 00004 INHINT # RESTORE DEADBAND DESIRED BY ASTRONAUT.
036601,000567: 34,3467 04674 TC IBNKCALL
036602,000568: 34,3470 40115 CADR RESTORDB
036603,000569: 34,3471 05516 TC DOWNFLAG # DISALLOW ABORTS AT THIS TIME.
036604,000570: 34,3472 00215 ADRES LETABORT
036605,000571: 34,3473 16001 TCF GOTOPOOH
036606,000572:
036607,000573: 34,3474 04125 V16N85C VN 1685
036608,000574:
036609,000575: 34,3475 77745 RPCOMP1 DLOAD # FLRCS = 1 (TRIM MODE)
036610,000576: 34,3476 06524 HI6ZEROS
036611,000577: 34,3477 02345 STORE PCONS # SET PCONS = PRATE = 0 SO THAT
036612,000578: 34,3500 02351 STORE PRATE # RF = R + RDOT TGO
036613,000579: 34,3501 41345 RPCOMP2 DLOAD DMP # FLRCS =C (GUIDANCE MODE)
036614,000580: 34,3502 02351 PRATE # LEAVE FCONS AND PRATE ALONE SO THAT
036615,000581: 34,3503 03517 TGO # RF = R + RDOT TGO + (FCONS*TGC**2)/
036616,000582: 34,3504 43205 DMP DAD # (2 TBUP) + (PRATE*TGO**3)/(6 TBUP)
036617,000583: 34,3505 33645 THIRD
036618,000584: 34,3506 02345 PCONS
036619,000585: 34,3507 41205 DMP DMP
036620,000586: 34,3510 03517 TGO
036621,000587: 34,3511 03517 TGO
036622,000588: 34,3512 72471 DDV SL1
036623,000589:
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Page 848 |
036625,000591: 34,3513 02271 TBUP
036626,000592: 34,3514 65215 DAD PDDL
036627,000593: 34,3515 02301 /R/MAG
036628,000594: 34,3516 03474 RDOT
036629,000595: 34,3517 43205 DMP DAD
036630,000596: 34,3520 03517 TGO
036631,000597: 34,3521 77626 STADR
036632,000598: 34,3522 75152 STORE RP
036633,000599: 34,3523 77616 RVQ
036634,000600:
036635,000601: 34,3524 45020 ZDOTCOMP STQ CALL # COMPUTE CETRAL ANGLE (0)
036636,000602: 34,3525 02574 ASCSAVE
036637,000603: 34,3526 71554 THETCOMP
036638,000604: 34,3527 43205 DMP DAD
036639,000605: 34,3530 02623 KPARM
036640,000606: 34,3531 02621 JPARM
036641,000607: 34,3532 41425 DSU PUSH # RA IN MPAC AND IN PUSHLIST (2)
036642,000608: 34,3533 02625 RP
036643,000609: 34,3534 51025 DSU BPL
036644,000610: 34,3535 02563 RAMIN
036645,000611: 34,3536 71541 +3
036646,000612: 34,3537 65345 DLOAD PDDL # RA < RAMIN. SET RA = RAMIN. (2)
036647,000613: 34,3540 02563 RAMIN
036648,000614: 34,3541 41345 +3 DLOAD DMP
036649,000615: 34,3542 00001 0D
036650,000616: 34,3543 16025 MUM(-37)
036651,000617: 34,3544 77725 PDDL
036652,000618: 34,3545 41215 DAD DMP
036653,000619: 34,3546 02625 RP
036654,000620: 34,3547 02625 RP
036655,000621: 34,3550 75465 BDDV SQRT # (0)
036656,000622: 34,3551 77626 STADR
036657,000623: 34,3552 41500 STCALL ZDOTD # UPDATE ZDOTD FOR GUIDANCE AND DOWNLINK.
036658,000624: 34,3553 02574 ASCSAVE
036659,000625:
036660,000626: 34,3554 53575 THETCOMP VLOAD UNIT
036661,000627: 34,3555 03521 R
036662,000628: 34,3556 53515 PDVL UNIT # (6)
036663,000629: 34,3557 01720 R(CSM)
036664,000630: 34,3560 47206 PUSH VXV # (12)
036665,000631: 34,3561 00001 0D
036666,000632: 34,3562 77641 DOT
036667,000633: 34,3563 02325 WM
036668,000634: 34,3564 24037 STOVL 30D # (6)
036669,000635: 34,3565 72441 DOT SL1 # (0)
036670,000636: 34,3566 75326 ARCCOS SIGN
036671,000637: 34,3567 00037 30D
036672,000638: 34,3570 77616 RVQ
036673,000639:
036674,000640: 34,3571 E5,1574 ASCSAVE = CG
036675,000641:
![]() |
Page 849 |
036677,000643: 27,3312 BANK 27
036678,000644: 27,2000 SETLOC ASENT1
036679,000645: 27,2000 BANK
036680,000646: 27,3312 COUNT* $$/ASENT
036681,000647:
036682,000648: 27,3312 50375 YCOMP VLOAD DOT
036683,000649: 27,3313 03537 UNIT/R/
036684,000650: 27,3314 03720 QAXIS
036685,000651: 27,3315 41312 SL2 DMP
036686,000652: 27,3316 03631 RCO
036687,000653: 27,3317 02335 STORE Y
036688,000654: 27,3320 77616 RVQ
036689,000655:
036690,000656:
036691,000657: 30,3005 BANK 30
036692,000658: 30,2000 SETLOC ASENT
036693,000659: 30,2000 BANK
036694,000660:
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Page 850 |
036696,000662: # ASCENT GUIDANCE CONSTANTS
036697,000663:
036698,000664: 30,3005 33,3105 100CS EQUALS 2SEC(18)
036699,000665: 30,3005 30,3007 T2A EQUALS 2SEC(17)
036700,000666: 30,3005 00062 00000 4SEC(17) 2DEC 400 B-17
036701,000667: 30,3007 00031 00000 2SEC(17) 2DEC 200 B-17
036702,000668: 30,3011 00175 00000 T3 2DEC 1000 B-17
036703,000669: 30,3013 00045 20000 6SEC(18) 2DEC 600 B-18
036704,000670: 30,3015 00010 BIT4H OCT 10
036705,000671: 30,3016 14400 00000 2SEC(9) 2DEC 200 B-9
036706,000672: 30,3020 01477 V06N63* VN 0663
036707,000673: 30,3021 01514 V06N76 VN 0676
036708,000674: 30,3022 01441 V06N33A VN 0633
036709,000675:
036710,000676: 33,2200 BANK 33
036711,000677: 33,2000 SETLOC ASENT6
036712,000678: 33,2000 BANK
036713,000679: 33,2200 COUNT* $$/ASENT
036714,000680:
036715,000681: 33,2200 75751 41775 PRLIMIT 2DEC -.0639 # (B/TBUP)MIN=-.1FT.SEC(-3)
036716,000682: 33,2202 00022 07212 MINABDV 2DEC .0356 B-5 # 10 PERCENT BIGGER THAN GRAVITY
036717,000683: 33,2204 00007 16100 25KFT 2DEC 7620 B-24
036718,000684: 33,2206 E7,1570 1/DV0 = MASS1
036719,000685:
![]() |
Page 851 |
036721,000687: # THE LOGARITHM SUBROUTINE
036722,000688:
036723,000689: 24,3677 BANK 24
036724,000690: 30,2000 SETLOC FLOGSUB
036725,000691: 30,2000 BANK
036726,000692:
036727,000693: # INPUT ..... X IN MPAC
036728,000694: # OUTPUT ..... -LOG(X) IN MPAC
036729,000695:
036730,000696: 30,3023 44301 LOGSUB NORM BDSU
036731,000697: 30,3024 00163 MPAC +6
036732,000698: 30,3025 17771 NEARONE
036733,000699: 30,3026 77776 EXIT
036734,000700: 30,3027 07225 TC POLY
036735,000701: 30,3030 00006 DEC 6 B-14
036736,000702: 30,3031 00000 00002 2DEC .0000000060
036737,000703: 30,3033 76777 77175 2DEC -.0312514377
036738,000704: 30,3035 77400 75416 2DEC -.0155686771
036739,000705: 30,3037 77507 65515 2DEC -.0112502068
036740,000706: 30,3041 77741 63547 2DEC -.0018545108
036741,000707: 30,3043 77052 55373 2DEC -.0286607906
036742,000708: 30,3045 01167 30361 2DEC .0385598563
036743,000709: 30,3047 76520 75267 2DEC -.0419361902
036744,000710:
036745,000711: 30,3051 34755 CAF ZERO
036746,000712: 30,3052 54156 TS MPAC +2
036747,000713: 30,3053 00006 EXTEND
036748,000714: 30,3054 33070 DCA CLOG2/32
036749,000715: 30,3055 52155 DXCH MPAC
036750,000716: 30,3056 52132 DXCH BUF +1
036751,000717: 30,3057 30162 CA MPAC +6
036752,000718: 30,3060 07312 TC SHORTMP
036753,000719: 30,3061 52156 DXCH MPAC +1
036754,000720: 30,3062 52155 DXCH MPAC
036755,000721: 30,3063 52132 DXCH BUF +1
036756,000722: 30,3064 20155 DAS MPAC
036757,000723: 30,3065 06042 TC INTPRET
036758,000724: 30,3066 43476 DCOMP RVQ
036759,000725:
036760,000726: 30,3067 00542 34414 CLOG2/32 2DEC .0216608494
End of include-file ASCENT_GUIDANCE.agc. Parent file is MAIN.agc