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. |
060824,000002: ## Copyright: Public domain.
060825,000003: ## Filename: DAP_INTERFACE_SUBROUTINES.agc
060826,000004: ## Purpose: The main source file for Luminary revision 069.
060827,000005: ## It is part of the source code for the original release
060828,000006: ## of the flight software for the Lunar Module's (LM) Apollo
060829,000007: ## Guidance Computer (AGC) for Apollo 10. The actual flown
060830,000008: ## version was Luminary 69 revision 2, which included a
060831,000009: ## newer lunar gravity model and only affected module 2.
060832,000010: ## This file is intended to be a faithful transcription, except
060833,000011: ## that the code format has been changed to conform to the
060834,000012: ## requirements of the yaYUL assembler rather than the
060835,000013: ## original YUL assembler.
060836,000014: ## Reference: pp. 1401-1404
060837,000015: ## Assembler: yaYUL
060838,000016: ## Contact: Ron Burkey <info@sandroid.org>.
060839,000017: ## Website: www.ibiblio.org/apollo/index.html
060840,000018: ## Mod history: 2016-12-13 MAS Created from Luminary 99.
060841,000019: ## 2016-12-18 MAS Updated from comment-proofed Luminary 99 version.
060842,000020: ## 2016-12-24 RRB Updated for Luminary 69.
060843,000021: ## 2017-01-28 RSB Proofed comment text using octopus/prooferComments
060844,000022: ## but no errors found.
060845,000023: ## 2017-03-10 RSB Comment-text fixes noted in proofing Luminary 116.
060846,000024:
Page 1401 |
060848,000026: 20,2123 BANK 20
060849,000027: 20,2000 SETLOC DAPS3
060850,000028: 20,2000 BANK
060851,000029:
060852,000030: 20,2123 E6,1633 EBANK= CDUXD
060853,000031: 20,2123 COUNT* $$/DAPIF
060854,000032:
060855,000033: # MOD 0 DATE 11/15/66 BY GEORGE W. CHERRY
060856,000034: # MOD 1 1/23/67 MODIFICATION BY PETER ADLER
060857,000035:
060858,000036: # FUNCTIONAL DESCRIPTION
060859,000037: # HEREIN ARE A COLLECTION OF SUBROUTINES WHICH ALLOW MISSION CONTROL PROGRAMS TO CONTROL THE MODE
060860,000038: # AND INTERFACE WITH THE DAP.
060861,000039:
060862,000040: # CALLING SEQUENCES
060863,000041: # IN INTERRUPT OR WITH INTERRUPT INHIBITED
060864,000042: # TC IBNKCALL
060865,000043: # FCADR ROUTINE
060866,000044: # IN A JOB WITHOUT INTERRUPT INHIBITED
060867,000045: # INHINT
060868,000046: # TC IBNKCALL
060869,000047: # FCADR ROUTINE
060870,000048: # RELINT
060871,000049:
060872,000050: # OUTPUT
060873,000051: # SEE INDIVIDUAL ROUTINES BELOW
060874,000052:
060875,000053: # DEBRIS
060876,000054: # A, L, AND SOMETIMES MDUETEMP ODE NOT IN PULSES MODE
060877,000055:
Page 1402 |
060879,000057: # SUBROUTINE NAMES:
060880,000058: # SETMAXDB, SETMINDB, RESTORDB, PFLITEDB
060881,000059: # MODIFIED: 30 JANUARY 1968 BY P S WEISSMAN TO CREATE RESTORDB.
060882,000060: # MODIFIED: 1 MARCH 1968 BY P S WEISSMAN TO SAVE EBANK AND CREATE PFLITEDB
060883,000061:
060884,000062: # FUNCTIONAL DESCRIPTION:
060885,000063: # SETMAXDB - SET DEADBAND TO 5.0 DEGREES
060886,000064: # SETMINDB - SET DEADBAND TO 0.3 DEGREE
060887,000065: # RESTORDB - SET DEADBAND TO MAX OR MIN ACCORDING TO SETTING OF DBSELECT BIT OF DAPBOOLS
060888,000066: # PFLITEDB - SET DEADBAND TO 1.0 DEGREE AND ZERO THE COMMANDED ATTITUDE CHANGE AND COMMANDED RATE
060889,000067:
060890,000068: # ALL ENTRIES SET UP A NOVAC JOB TO DO 1/ACCS SO THAT THE TJETLAW SWITCH CURVES ARE POSITIONED TO
060891,000069: # REFLECT THE NEW DEADBAND. IT SHOULD BE NOTED THAT THE DEADBAND REFERS TO THE ATTITUDE IN THE P-, U-, AND V-AXES.
060892,000070:
060893,000071: # SUBROUTINE CALLED: NOVAC
060894,000072:
060895,000073: # CALLING SEQUENCE: SAME AS ABOVE
060896,000074: # OR TC RESTORDB +1 FROM ALLCOAST
060897,000075:
060898,000076: # DEBRIS: A, L, Q, RUPTREG1, (ITEMPS IN NOVAC)
060899,000077:
060900,000078: 20,2123 30111 RESTORDB CAE DAPBOOLS # DETERMINE CREW-SELECTED DEADBAND.
060901,000079: 20,2124 74750 MASK DBSELECT
060902,000080: 20,2125 00006 EXTEND
060903,000081: 20,2126 12140 BZF SETMINDB
060904,000082:
060905,000083: 20,2127 32151 SETMAXDB CAF WIDEDB # SET 5 DEGREE DEADBAND.
060906,000084: 20,2130 55346 +1 TS DB
060907,000085:
060908,000086: 20,2131 00006 EXTEND # SET UP JOB TO RE-POSITION SWITCH CURVES.
060909,000087: 20,2132 22070 QXCH RUPTREG1
060910,000088: 20,2133 37714 CALLACCS CAF PRIO27
060911,000089: 20,2134 05072 TC NOVAC
060912,000090: 20,2135 E6,1537 EBANK= AOSQ
060913,000091: 20,2135 02454 40106 2CADR 1/ACCJOB
060914,000092:
060915,000093: 20,2137 00070 TC RUPTREG1 # RETURN TO CALLER.
060916,000094:
060917,000095: 20,2140 32150 SETMINDB CAF NARROWDB # SET 0.3 DEGREE DEADBAND.
060918,000096: 20,2141 12130 TCF SETMAXDB +1
060919,000097:
060920,000098: 20,2142 00006 PFLITEDB EXTEND # THE RETURN FROM CALLACCS IS TO RUPTREG1.
060921,000099: 20,2143 22070 QXCH RUPTREG1
060922,000100: 20,2144 02153 TC ZATTEROR # ZERO THE ERRORS AND COMMANDED RATES.
060923,000101: 20,2145 32152 CAF POWERDB # SET DB TO 1.0 DEG.
060924,000102: 20,2146 55346 TS DB
060925,000103: 20,2147 12133 TCF CALLACCS # SET UP 1/ACCS AND RETURN TO CALLER.
060926,000104: 20,2150 00155 NARROWDB OCTAL 00155 # 0.3 DEGREE SCALED AT 45.
Page 1403 |
060928,000106: 20,2151 03434 WIDEDB OCTAL 03434 # 5.0 DEGREES SCALED AT 45.
060929,000107: 20,2152 00554 POWERDB DEC .02222 # 1.0 DEGREE SCALED AT 45.
060930,000108:
060931,000109: 20,2153 35015 ZATTEROR CAF EBANK6
060932,000110: 20,2154 56003 XCH EBANK
060933,000111: 20,2155 54001 TS L # SAVE CALLERS EBANK IN L.
060934,000112: 20,2156 30032 CAE CDUX
060935,000113: 20,2157 55633 TS CDUXD
060936,000114: 20,2160 30033 CAE CDUY
060937,000115: 20,2161 55634 TS CDUYD
060938,000116: 20,2162 30034 CAE CDUZ
060939,000117: 20,2163 55635 TS CDUZD
060940,000118: 20,2164 12170 TCF STOPRATE +3
060941,000119:
060942,000120: 20,2165 35015 STOPRATE CAF EBANK6
060943,000121: 20,2166 56003 XCH EBANK
060944,000122: 20,2167 54001 TS L # SAVE CALLERS EBANK IN L.
060945,000123: 20,2170 34755 +3 CAF ZERO
060946,000124: 20,2171 55641 TS OMEGAPD
060947,000125: 20,2172 55642 TS OMEGAQD
060948,000126: 20,2173 55643 TS OMEGARD
060949,000127: 20,2174 55636 TS DELCDUX
060950,000128: 20,2175 55637 TS DELCDUY
060951,000129: 20,2176 55640 TS DELCDUZ
060952,000130: 20,2177 55277 TS DELPEROR
060953,000131: 20,2200 55300 TS DELQEROR
060954,000132: 20,2201 55301 TS DELREROR
060955,000133: 20,2202 22003 LXCH EBANK # RESTORE CALLERS EBANK.
060956,000134: 20,2203 00002 TC Q
060957,000135:
060958,000136: # SUBROUTINE NAME: ALLCOAST
060959,000137: # WILL BE CALLED BY FRESH STARTS AND ENGINE OFF ROUTINES. .
060960,000138:
060961,000139: # CALLING SEQUENCE: (SAME AS ABOVE)
060962,000140:
060963,000141: # EXIT: RETURN TO Q.
060964,000142:
060965,000143: # SUBROUTINES CALLED: STOPRATE, RESTORDB, NOVAC
060966,000144:
060967,000145: # ZERO: (FOR ALL AXES) AOS, ALPHA, AOSTERM, OMEGAD, DELCDU, DELEROR
060968,000146:
060969,000147: # OUTPUT: DRIFTBIT/DAPBOOLS, DB, JOB TO DO 1/ACCS
060970,000148:
060971,000149: # DEBRIS: A, L, Q, RUPTREG1, RUPTREG2, (ITEMPS IN NOVAC)
060972,000150:
060973,000151: 20,2204 00006 ALLCOAST EXTEND # SAVE Q FOR RETURN
060974,000152: 20,2205 22071 QXCH RUPTREG2
Page 1404 |
060976,000154: 20,2206 02165 TC STOPRATE # CLEAR RATE INTERFACE. RETURN WITH A=0
060977,000155: 20,2207 22003 LXCH EBANK # AND L=EBANK6. SAVE CALLERS EBANK.
060978,000156: 20,2210 55537 TS AOSQ
060979,000157: 20,2211 55540 TS AOSQ +1
060980,000158: 20,2212 55541 TS AOSR
060981,000159: 20,2213 55542 TS AOSR +1
060982,000160: 20,2214 55422 TS ALPHAQ # FOR DOWNLIST.
060983,000161: 20,2215 55423 TS ALPHAR
060984,000162: 20,2216 55545 TS AOSQTERM
060985,000163: 20,2217 55546 TS AOSRTERM
060986,000164: 20,2220 22003 LXCH EBANK # RESTORE EBANK (EBANK6 NO LONGER NEEDED)
060987,000165:
060988,000166: 20,2221 40111 CS DAPBOOLS # SET UP DRIFTBIT
060989,000167: 20,2222 74744 MASK DRIFTBIT
060990,000168: 20,2223 26111 ADS DAPBOOLS
060991,000169: 20,2224 02124 TC RESTORDB +1 # RESTORE DEADBANK TO CREW-SELECTED VALUE.
060992,000170:
060993,000171: 20,2225 00071 TC RUPTREG2 # RETURN.
060994,000172:
End of include-file DAP_INTERFACE_SUBROUTINES.agc. Parent file is MAIN.agc