Source Code
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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. |
060790,000002: ## Copyright: Public domain.
060791,000003: ## Filename: DAP_INTERFACE_SUBROUTINES.agc
060792,000004: ## Purpose: The main source file for Luminary revision 069.
060793,000005: ## It is part of the source code for the original release
060794,000006: ## of the flight software for the Lunar Module's (LM) Apollo
060795,000007: ## Guidance Computer (AGC) for Apollo 10. The actual flown
060796,000008: ## version was Luminary 69 revision 2, which included a
060797,000009: ## newer lunar gravity model and only affected module 2.
060798,000010: ## This file is intended to be a faithful transcription, except
060799,000011: ## that the code format has been changed to conform to the
060800,000012: ## requirements of the yaYUL assembler rather than the
060801,000013: ## original YUL assembler.
060802,000014: ## Reference: pp. 1401-1404
060803,000015: ## Assembler: yaYUL
060804,000016: ## Contact: Ron Burkey <info@sandroid.org>.
060805,000017: ## Website: www.ibiblio.org/apollo/index.html
060806,000018: ## Mod history: 2016-12-13 MAS Created from Luminary 99.
060807,000019: ## 2016-12-18 MAS Updated from comment-proofed Luminary 99 version.
060808,000020: ## 2016-12-24 RRB Updated for Luminary 69.
060809,000021: ## 2017-01-28 RSB Proofed comment text using octopus/prooferComments
060810,000022: ## but no errors found.
060811,000023: ## 2017-03-10 RSB Comment-text fixes noted in proofing Luminary 116.
060812,000024:
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Page 1401 |
060814,000026: 20,2123 BANK 20
060815,000027: 20,2000 SETLOC DAPS3
060816,000028: 20,2000 BANK
060817,000029:
060818,000030: 20,2123 E6,1633 EBANK= CDUXD
060819,000031: 20,2123 COUNT* $$/DAPIF
060820,000032:
060821,000033: # MOD 0 DATE 11/15/66 BY GEORGE W. CHERRY
060822,000034: # MOD 1 1/23/67 MODIFICATION BY PETER ADLER
060823,000035:
060824,000036: # FUNCTIONAL DESCRIPTION
060825,000037: # HEREIN ARE A COLLECTION OF SUBROUTINES WHICH ALLOW MISSION CONTROL PROGRAMS TO CONTROL THE MODE
060826,000038: # AND INTERFACE WITH THE DAP.
060827,000039:
060828,000040: # CALLING SEQUENCES
060829,000041: # IN INTERRUPT OR WITH INTERRUPT INHIBITED
060830,000042: # TC IBNKCALL
060831,000043: # FCADR ROUTINE
060832,000044: # IN A JOB WITHOUT INTERRUPT INHIBITED
060833,000045: # INHINT
060834,000046: # TC IBNKCALL
060835,000047: # FCADR ROUTINE
060836,000048: # RELINT
060837,000049:
060838,000050: # OUTPUT
060839,000051: # SEE INDIVIDUAL ROUTINES BELOW
060840,000052:
060841,000053: # DEBRIS
060842,000054: # A, L, AND SOMETIMES MDUETEMP ODE NOT IN PULSES MODE
060843,000055:
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Page 1402 |
060845,000057: # SUBROUTINE NAMES:
060846,000058: # SETMAXDB, SETMINDB, RESTORDB, PFLITEDB
060847,000059: # MODIFIED: 30 JANUARY 1968 BY P S WEISSMAN TO CREATE RESTORDB.
060848,000060: # MODIFIED: 1 MARCH 1968 BY P S WEISSMAN TO SAVE EBANK AND CREATE PFLITEDB
060849,000061:
060850,000062: # FUNCTIONAL DESCRIPTION:
060851,000063: # SETMAXDB - SET DEADBAND TO 5.0 DEGREES
060852,000064: # SETMINDB - SET DEADBAND TO 0.3 DEGREE
060853,000065: # RESTORDB - SET DEADBAND TO MAX OR MIN ACCORDING TO SETTING OF DBSELECT BIT OF DAPBOOLS
060854,000066: # PFLITEDB - SET DEADBAND TO 1.0 DEGREE AND ZERO THE COMMANDED ATTITUDE CHANGE AND COMMANDED RATE
060855,000067:
060856,000068: # ALL ENTRIES SET UP A NOVAC JOB TO DO 1/ACCS SO THAT THE TJETLAW SWITCH CURVES ARE POSITIONED TO
060857,000069: # REFLECT THE NEW DEADBAND. IT SHOULD BE NOTED THAT THE DEADBAND REFERS TO THE ATTITUDE IN THE P-, U-, AND V-AXES.
060858,000070:
060859,000071: # SUBROUTINE CALLED: NOVAC
060860,000072:
060861,000073: # CALLING SEQUENCE: SAME AS ABOVE
060862,000074: # OR TC RESTORDB +1 FROM ALLCOAST
060863,000075:
060864,000076: # DEBRIS: A, L, Q, RUPTREG1, (ITEMPS IN NOVAC)
060865,000077:
060866,000078: 20,2123 30111 RESTORDB CAE DAPBOOLS # DETERMINE CREW-SELECTED DEADBAND.
060867,000079: 20,2124 74750 MASK DBSELECT
060868,000080: 20,2125 00006 EXTEND
060869,000081: 20,2126 12140 BZF SETMINDB
060870,000082:
060871,000083: 20,2127 32151 SETMAXDB CAF WIDEDB # SET 5 DEGREE DEADBAND.
060872,000084: 20,2130 55346 +1 TS DB
060873,000085:
060874,000086: 20,2131 00006 EXTEND # SET UP JOB TO RE-POSITION SWITCH CURVES.
060875,000087: 20,2132 22070 QXCH RUPTREG1
060876,000088: 20,2133 37714 CALLACCS CAF PRIO27
060877,000089: 20,2134 05072 TC NOVAC
060878,000090: 20,2135 E6,1537 EBANK= AOSQ
060879,000091: 20,2135 02454 40106 2CADR 1/ACCJOB
060880,000092:
060881,000093: 20,2137 00070 TC RUPTREG1 # RETURN TO CALLER.
060882,000094:
060883,000095: 20,2140 32150 SETMINDB CAF NARROWDB # SET 0.3 DEGREE DEADBAND.
060884,000096: 20,2141 12130 TCF SETMAXDB +1
060885,000097:
060886,000098: 20,2142 00006 PFLITEDB EXTEND # THE RETURN FROM CALLACCS IS TO RUPTREG1.
060887,000099: 20,2143 22070 QXCH RUPTREG1
060888,000100: 20,2144 02153 TC ZATTEROR # ZERO THE ERRORS AND COMMANDED RATES.
060889,000101: 20,2145 32152 CAF POWERDB # SET DB TO 1.0 DEG.
060890,000102: 20,2146 55346 TS DB
060891,000103: 20,2147 12133 TCF CALLACCS # SET UP 1/ACCS AND RETURN TO CALLER.
060892,000104: 20,2150 00155 NARROWDB OCTAL 00155 # 0.3 DEGREE SCALED AT 45.
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Page 1403 |
060894,000106: 20,2151 03434 WIDEDB OCTAL 03434 # 5.0 DEGREES SCALED AT 45.
060895,000107: 20,2152 00554 POWERDB DEC .02222 # 1.0 DEGREE SCALED AT 45.
060896,000108:
060897,000109: 20,2153 35015 ZATTEROR CAF EBANK6
060898,000110: 20,2154 56003 XCH EBANK
060899,000111: 20,2155 54001 TS L # SAVE CALLERS EBANK IN L.
060900,000112: 20,2156 30032 CAE CDUX
060901,000113: 20,2157 55633 TS CDUXD
060902,000114: 20,2160 30033 CAE CDUY
060903,000115: 20,2161 55634 TS CDUYD
060904,000116: 20,2162 30034 CAE CDUZ
060905,000117: 20,2163 55635 TS CDUZD
060906,000118: 20,2164 12170 TCF STOPRATE +3
060907,000119:
060908,000120: 20,2165 35015 STOPRATE CAF EBANK6
060909,000121: 20,2166 56003 XCH EBANK
060910,000122: 20,2167 54001 TS L # SAVE CALLERS EBANK IN L.
060911,000123: 20,2170 34755 +3 CAF ZERO
060912,000124: 20,2171 55641 TS OMEGAPD
060913,000125: 20,2172 55642 TS OMEGAQD
060914,000126: 20,2173 55643 TS OMEGARD
060915,000127: 20,2174 55636 TS DELCDUX
060916,000128: 20,2175 55637 TS DELCDUY
060917,000129: 20,2176 55640 TS DELCDUZ
060918,000130: 20,2177 55277 TS DELPEROR
060919,000131: 20,2200 55300 TS DELQEROR
060920,000132: 20,2201 55301 TS DELREROR
060921,000133: 20,2202 22003 LXCH EBANK # RESTORE CALLERS EBANK.
060922,000134: 20,2203 00002 TC Q
060923,000135:
060924,000136: # SUBROUTINE NAME: ALLCOAST
060925,000137: # WILL BE CALLED BY FRESH STARTS AND ENGINE OFF ROUTINES. .
060926,000138:
060927,000139: # CALLING SEQUENCE: (SAME AS ABOVE)
060928,000140:
060929,000141: # EXIT: RETURN TO Q.
060930,000142:
060931,000143: # SUBROUTINES CALLED: STOPRATE, RESTORDB, NOVAC
060932,000144:
060933,000145: # ZERO: (FOR ALL AXES) AOS, ALPHA, AOSTERM, OMEGAD, DELCDU, DELEROR
060934,000146:
060935,000147: # OUTPUT: DRIFTBIT/DAPBOOLS, DB, JOB TO DO 1/ACCS
060936,000148:
060937,000149: # DEBRIS: A, L, Q, RUPTREG1, RUPTREG2, (ITEMPS IN NOVAC)
060938,000150:
060939,000151: 20,2204 00006 ALLCOAST EXTEND # SAVE Q FOR RETURN
060940,000152: 20,2205 22071 QXCH RUPTREG2
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Page 1404 |
060942,000154: 20,2206 02165 TC STOPRATE # CLEAR RATE INTERFACE. RETURN WITH A=0
060943,000155: 20,2207 22003 LXCH EBANK # AND L=EBANK6. SAVE CALLERS EBANK.
060944,000156: 20,2210 55537 TS AOSQ
060945,000157: 20,2211 55540 TS AOSQ +1
060946,000158: 20,2212 55541 TS AOSR
060947,000159: 20,2213 55542 TS AOSR +1
060948,000160: 20,2214 55422 TS ALPHAQ # FOR DOWNLIST.
060949,000161: 20,2215 55423 TS ALPHAR
060950,000162: 20,2216 55545 TS AOSQTERM
060951,000163: 20,2217 55546 TS AOSRTERM
060952,000164: 20,2220 22003 LXCH EBANK # RESTORE EBANK (EBANK6 NO LONGER NEEDED)
060953,000165:
060954,000166: 20,2221 40111 CS DAPBOOLS # SET UP DRIFTBIT
060955,000167: 20,2222 74744 MASK DRIFTBIT
060956,000168: 20,2223 26111 ADS DAPBOOLS
060957,000169: 20,2224 02124 TC RESTORDB +1 # RESTORE DEADBANK TO CREW-SELECTED VALUE.
060958,000170:
060959,000171: 20,2225 00071 TC RUPTREG2 # RETURN.
060960,000172:
End of include-file DAP_INTERFACE_SUBROUTINES.agc. Parent file is MAIN.agc