Source Code
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These source-code files were obtained by digitally photographing
an Artemis 72 program listing from a private collection and then
modifying pre-existing Comanche 55 (Apollo 11) source files to
incorporate changes. Note that the page images
presented online are of reduced quality, and that additional images
may be available. Report any conversion errors or legibility
problems in page images to info@sandroid.org.
Notations on the program listing read, in part:GAP: ASSEMBLE REVISION 072 OF AGC PROGRAM ARTEMIS BY NASA 2021114-011 11:40 FEB. 26, 1971 THIS AGC PROGRAM SHALL ALSO BE REFERRED TO AS COLOSSUS 3 THIS PROGRAM IS INTENDED FOR USE IN THE CM AS SPECIFIED IN REPORT R-577. THIS PROGRAM WAS PREPARED UNDER OSR PROJECT 55-23890, SPONSORED BY THE MANNED SPACECRAFT CENTER OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION THROUGH CONTRACT NAS 9-4065 WITH THE CHARLES STARK DRAPER LABORATORY, MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE, MASS. |
041274,000002: # Copyright: Public domain.
041275,000003: # Filename: S-BAND_ANTENNA_FOR_CM.agc
041276,000004: # Purpose: Part of the source code for Artemis (i.e., Colossus 3),
041277,000005: # build 072. This is for the Command Module's (CM)
041278,000006: # Apollo Guidance Computer (AGC), we believe for
041279,000007: # Apollo 15-17.
041280,000008: # Assembler: yaYUL
041281,000009: # Contact: Steve Case <case.steve@gmail.com>
041282,000010: # Website: www.ibiblio.org/apollo/index.html
041283,000011: # Page scans: www.ibiblio.org/apollo/ScansForConversion/Artemis072/
041284,000012: # Mod history: 2009-09-01 SMC Adapted from Comanche055 files.
041285,000013: # 2009-09-04 JL Fixed page comments. Fixed typos.
041286,000014: # 2010-02-20 RSB Un-##'d this header.
041287,000015:
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Page 940 |
041289,000017: 42,2000 SETLOC SBAND
041290,000018: 42,2000 BANK
041291,000019:
041292,000020: 42,3504 COUNT* $$/R05
041293,000021: 42,3504 E4,1417 EBANK= EMSALT
041294,000022:
041295,000023: 42,3504 06006 SBANDANT TC INTPRET
041296,000024: 42,3505 45034 RTB CALL
041297,000025: 42,3506 51751 LOADTIME # PICKUP CURRENT TIME SCALED B-28
041298,000026: 42,3507 47530 CDUTRIG # COMPUTE SINES AND COSINES OF CDU ANGLES
041299,000027: 42,3510 34041 STCALL TDEC1 # ADVANCE INTEGRATION TO TIME IN TDEC1
041300,000028: 42,3511 27170 CSMCONIC # USING CONIC INTEGRATION
041301,000029: 42,3512 46135 SLOAD BHIZ # ORIGIN OF REFERENCE INERTIAL SYSTEM IS
041302,000030: 42,3513 00050 X2 # EARTH = 0, MOON = 2
041303,000031: 42,3514 65527 EISOI
041304,000032: 42,3515 77775 VLOAD
041305,000033: 42,3516 00001 RATT
041306,000034: 42,3517 00003 STORE RCM # MOVE RATT TO PREVENT WIPEOUT
041307,000035: 42,3520 45145 DLOAD CALL # MOON, PUSH ON
041308,000036: 42,3521 00015 TAT # GET ORIGINAL TIME
041309,000037: 42,3522 54141 LUNPOS # COMPUTE POSITION VECTOR OF MOON
041310,000038: 42,3523 57455 VAD VCOMP # R= -(REM+RCM) = NEG. OF S/C POS. VEC
041311,000039: 42,3524 00003 RCM
041312,000040: 42,3525 77650 GOTO
041313,000041: 42,3526 65531 EISOI +2
041314,000042: 42,3527 57575 EISOI VLOAD VCOMP # EARTH, R= -RCM
041315,000043: 42,3530 00001 RATT
041316,000044: 42,3531 64201 SETPD MXV # RCS TO STABLE MEMBER- B-1X B-29X B+1
041317,000045: 42,3532 00003 2D # 2D
041318,000046: 42,3533 01734 REFSMMAT # STABLE MEMBER. B-1X B-29X B+1= B-29
041319,000047: 42,3534 65372 VSL1 PDDL # 8D
041320,000048: 42,3535 15336 HI6ZEROS
041321,000049: 42,3536 24025 STOVL YAWANG # ZERO OUT YAWANG, SET UP FOR SMNB
041322,000050: 42,3537 00003 RCM # TRANSFORMATION. SM COORD. SCALED B-29
041323,000051: 42,3540 77624 CALL
041324,000052: 42,3541 47633 *SMNB*
041325,000053: 42,3542 00003 STORE R # SAVE NAV. BASE COORDINATES
041326,000054: 42,3543 63256 UNIT PDVL # 14D
041327,000055: 42,3544 00003 R
041328,000056: 42,3545 72431 VPROJ VSL2 # COMPUTE PROJECTION OF VECTOR INTO CM
041329,000057: 42,3546 15330 HIUNITZ # XY-PLANE, R-(R.UZ)UZ
041330,000058: 42,3547 40045 BVSU BOV # CLEAR OVERFLOW INDICATOR IF SET
041331,000059: 42,3550 00003 R
041332,000060: 42,3551 65552 COVCNV
041333,000061: 42,3552 40056 COVCNV UNIT BOV # TEST OVERFLOW FOR INDICATION OF NULL
041334,000062: 42,3553 65567 NOADJUST # VECTOR
041335,000063: 42,3554 50206 PUSH DOT # 20D
041336,000064: 42,3555 15334 HIUNITX # COMPUTE YAW ANGLE = ACOS (URP.UX)
041337,000065: 42,3556 65552 SL1 ACOS # REVOLUTIONS SCALED B0
041338,000066: 42,3557 50315 PDVL DOT # 22D YAWANG
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Page 941 |
041340,000068: 42,3560 00017 URP
041341,000069: 42,3561 15332 HIUNITY # COMPUTE FOLLOWING- URP.UY
041342,000070: 42,3562 51152 SL1 BPL # POSITIVE
041343,000071: 42,3563 65567 NOADJUST # YES, 0- 180 DEGREES
041344,000072: 42,3564 45345 DLOAD DSU # NO, 181-360 DEGREES 20D
041345,000073: 42,3565 15344 DPPOSMAX # COMPUTE 2 PI MINUS YAW ANGLE
041346,000074: 42,3566 77606 PUSH # 22D YAWANG
041347,000075: 42,3567 50375 NOADJUST VLOAD DOT # COMPUTE PITCH ANGLE
041348,000076: 42,3570 00011 UR # ACOS (UR.UZ) - PI/2
041349,000077: 42,3571 15330 HIUNITZ
041350,000078: 42,3572 65552 SL1 ACOS # REVOLUTIONS B0
041351,000079: 42,3573 77625 DSU
041352,000080: 42,3574 15326 HIDP1/4
041353,000081: 42,3575 16312 STODL RHOSB
041354,000082: 42,3576 00025 YAWANG
041355,000083: 42,3577 02314 STORE GAMMASB # PATCH FOR CHECKOUT
041356,000084: 42,3600 77776 EXIT
041357,000085: 42,3601 35047 CAF PRIO5
041358,000086: 42,3602 05176 TC PRIOCHNG
041359,000087:
041360,000088: 42,3603 31247 CA EXTVBACT # IS BIT 5 STILL ON
041361,000089: 42,3604 74764 MASK BIT5
041362,000090: 42,3605 00006 EXTEND
041363,000091: 42,3606 15524 BZF ENDEXT # NO, WE HAVE BEEN ANSWERED
041364,000092: 42,3607 33625 CAF V06N51 # DISPLAY ANGLES
041365,000093: 42,3610 04636 TC BANKCALL
041366,000094: 42,3611 20607 CADR GOMARKFR
041367,000095: 42,3612 05626 TC B5OFF # TERMINATE
041368,000096: 42,3613 05626 TC B5OFF
041369,000097: 42,3614 05205 TC ENDOFJOB # RECYCLE
041370,000098: 42,3615 34766 CAF BIT3 # IMMEDIATE RETURN
041371,000099: 42,3616 05516 TC BLANKET # BLANK R3
041372,000100: 42,3617 34755 CAF PRIO4
041373,000101: 42,3620 05176 TC PRIOCHNG
041374,000102:
041375,000103: 42,3621 34770 CAF BIT1 # DELAY MINIMUM TIME TO ALLOW DISPLAY IN
041376,000104: 42,3622 04636 TC BANKCALL
041377,000105: 42,3623 01731 CADR DELAYJOB
041378,000106: 42,3624 13504 TCF SBANDANT
041379,000107: 42,3625 01463 V06N51 VN 0651
041380,000108: 42,3626 RCM EQUALS 2D
041381,000109: 42,3626 UR EQUALS 8D
041382,000110: 42,3626 URP EQUALS 14D
041383,000111: 42,3626 YAWANG EQUALS 20D
041384,000112: 42,3626 PITCHANG EQUALS 22D
041385,000113: 42,3626 0000002 R EQUALS RCM
041386,000114: 42,3626 30,2000 SBANK= LOWSUPER
041387,000115:
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Page 942 |
041389,000117: # *** END OF MENELAUS.061 ***
041390,000118:
End of include-file S-BAND_ANTENNA_FOR_CM.agc. Parent file is MAIN.agc