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. |
059317,000002: ## Copyright: Public domain.
059318,000003: ## Filename: SERVICE_ROUTINES.agc
059319,000004: ## Purpose: The main source file for Luminary revision 069.
059320,000005: ## It is part of the source code for the original release
059321,000006: ## of the flight software for the Lunar Module's (LM) Apollo
059322,000007: ## Guidance Computer (AGC) for Apollo 10. The actual flown
059323,000008: ## version was Luminary 69 revision 2, which included a
059324,000009: ## newer lunar gravity model and only affected module 2.
059325,000010: ## This file is intended to be a faithful transcription, except
059326,000011: ## that the code format has been changed to conform to the
059327,000012: ## requirements of the yaYUL assembler rather than the
059328,000013: ## original YUL assembler.
059329,000014: ## Reference: pp. 1368-1374
059330,000015: ## Assembler: yaYUL
059331,000016: ## Contact: Ron Burkey <info@sandroid.org>.
059332,000017: ## Website: www.ibiblio.org/apollo/index.html
059333,000018: ## Mod history: 2016-12-13 MAS Created from Luminary 99.
059334,000019: ## 2016-12-18 MAS Updated from comment-proofed Luminary 99 version.
059335,000020: ## 2017-01-10 RRB Updated for Luminary 69.
059336,000021: ## 2017-01-21 HG fix operand OCT 7 -> OCT7
059337,000022: ## 2017-01-28 RSB Proofed comment text using octopus/prooferComments
059338,000023: ## and fixed errors found.
059339,000024:
![]() |
Page 1368 |
059341,000026: 10,3416 BANK 10
059342,000027: 10,2000 SETLOC DISPLAYS
059343,000028: 10,2000 BANK
059344,000029: 10,3416 COUNT* $$/DSPLA
059345,000030:
059346,000031: 10,3416 54001 UPENT2 TS L # WHICH FLAGWORD IS IT
059347,000032: 10,3417 74757 MASK OCT7
059348,000033: 10,3420 56001 XCH L # SAVE IN L FOR INDEXING
059349,000034:
059350,000035: 10,3421 75660 MASK OCT77770 # OBTAIN THE BIT INFORMATION
059351,000036: 10,3422 00004 INHINT # PREVENT INTERUPTS
059352,000037: 10,3423 54061 TS ITEMP1 # STORE THE BIT INFORMATION TEMPORARIALY
059353,000038:
059354,000039: 10,3424 50001 NDX L
059355,000040: 10,3425 40074 CS FLAGWRD0
059356,000041: 10,3426 70061 MASK ITEMP1
059357,000042: 10,3427 50001 NDX L
059358,000043: 10,3430 26074 ADS FLAGWRD0
059359,000044: 10,3431 00003 RELINT # RELEASE INTERUPT INHIBIT
059360,000045:
059361,000046: 10,3432 24002 INCR Q # OBTAIN THE CORRECT RETURN ADDRESS
059362,000047: 10,3433 00002 TC Q # RETURN
059363,000048:
059364,000049: 10,3434 54001 DOWNENT2 TS L # WHICH FLAGWORD IS IT
059365,000050: 10,3435 74757 MASK OCT7
059366,000051: 10,3436 56001 XCH L # SAVE IN L FOR INDEXING
059367,000052:
059368,000053: 10,3437 75660 MASK OCT77770 # OBTAIN THE BIT INFORMATION
059369,000054: 10,3440 40000 COM # START TO PROCESS THE INFORMATION
059370,000055:
059371,000056: 10,3441 00004 INHINT # PREVENT INTERUPTS
059372,000057: 10,3442 50001 NDX L
059373,000058: 10,3443 70074 MASK FLAGWRD0
059374,000059: 10,3444 50001 NDX L
059375,000060: 10,3445 54074 TS FLAGWRD0
059376,000061: 10,3446 00003 RELINT # RELEASE INTERUPT INHIBIT
059377,000062:
059378,000063: 10,3447 24002 INCR Q # OBTAIN THE CORRECT RETURN ADDRESS
059379,000064: 10,3450 00002 TC Q # RETURN
059380,000065:
059381,000066: 10,3451 4757 OCT7 EQUALS SEVEN
059382,000067:
![]() |
Page 1369 |
059384,000069: # UPFLAG AND DOWNFLAG ARE ENTIRELY GENERAL FLAG SETTING AND CLEARING SUBROUTINES. USING THEM, WHETHER OR
059385,000070: # NOT IN INTERRUPT, ONE MAY SET OR CLEAR ANY SINGLE, NAMED BIT IN ANY ERASABLE REGISTER, SUBJECT OF COURSE TO
059386,000071: # EBANK SETTING. A "NAMED" BIT, AS THE WORD IS USED HERE, IS ANY BIT WITH A NAME FORMALLY ASSIGNED BY THE YUL
059387,000072: # ASSEMBLER.
059388,000073:
059389,000074: # AT PRESENT THE ONLY NAMED BITS ARE THOSE IN THE FLAGWORDS. ASSEMBLER CHANGES WILL MAKE IT POSSIBLE TO
059390,000075: # NAME ANY BIT IN ERASABLE MEMORY.
059391,000076:
059392,000077: # CALLING SEQUENCES ARE AS FOLLOWS :-
059393,000078: # TC UPFLAG TC DOWNFLAG
059394,000079: # ADRES NAME OF FLAG ADRES NAME OF FLAG
059395,000080:
059396,000081: # RETURN IS TO THE LOCATION FOLLOWING THE "ADRES" ABOUT .58 MS AFTER THE "TC".
059397,000082:
059398,000083: # UPON RETURN A CONTAINS THE CURRENT FLAGWRD SETTING.
059399,000084:
059400,000085: 5504 BLOCK 02
059401,000086: 4000 SETLOC FFTAG1
059402,000087: 4000 BANK
059403,000088: 5504 COUNT* $$/FLAG
059404,000089:
059405,000090: 5504 30002 UPFLAG CA Q
059406,000091: 5505 05522 TC DEBIT
059407,000092: 5506 40000 COM # +(15 - BIT)
059408,000093: 5507 00006 EXTEND
059409,000094: 5510 04001 ROR LCHAN # SET BIT
059410,000095: 5511 50061 COMFLAG INDEX ITEMP1
059411,000096: 5512 54074 TS FLAGWRD0
059412,000097: 5513 22063 LXCH ITEMP3
059413,000098: 5514 00003 RELINT
059414,000099: 5515 00001 TC L
059415,000100:
059416,000101: 5516 30002 DOWNFLAG CA Q
059417,000102: 5517 05522 TC DEBIT
059418,000103: 5520 70001 MASK L # RESET BIT
059419,000104: 5521 15511 TCF COMFLAG
059420,000105:
059421,000106: 5522 64753 DEBIT AD ONE # GET DE BITS
059422,000107: 5523 00004 INHINT
059423,000108: 5524 54063 TS ITEMP3
059424,000109: 5525 34762 CA LOW4 # DEC15
059425,000110: 5526 54061 TS ITEMP1
059426,000111: 5527 50063 INDEX ITEMP3
059427,000112: 5530 27777 CA 0 -1 # ADRES
059428,000113: 5531 54001 TS L
059429,000114: 5532 34755 CA ZERO
![]() |
Page 1370 |
059431,000116: 5533 00006 EXTEND
059432,000117: 5534 10061 DV ITEMP1 # A = FLAGWRD, L = (15 - BIT)
059433,000118: 5535 52062 DXCH ITEMP1
059434,000119: 5536 50061 INDEX ITEMP1
059435,000120: 5537 30074 CA FLAGWRD0
059436,000121: 5540 54001 TS L # CURRENT STATE
059437,000122: 5541 50062 INDEX ITEMP2
059438,000123: 5542 44735 CS BIT15 # -(15 - BIT)
059439,000124: 5543 00002 TC Q
059440,000125:
![]() |
Page 1371 |
059442,000127: # DELAYJOB - A GENERAL ROUTINE TO DELAY A JOB A SPECIFIC AMOUNT OF TIME BEFORE PICKING UP AGAIN.
059443,000128:
059444,000129: # ENTRANCE REQUIREMENTS ...
059445,000130: # CAF DT DELAY JOB FOR DT CENTISECS
059446,000131: # TC BANKCALL
059447,000132: # CADR DELAYJOB
059448,000133:
059449,000134: 06,3715 BANK 06
059450,000135: 00,2000 SETLOC DLAYJOB
059451,000136: 00,2000 BANK
059452,000137:
059453,000138: # THIS MUST REMAIN IN BANK 0 *****************************************
059454,000139:
059455,000140: 00,3735 COUNT* $$/DELAY
059456,000141: 00,3735 00004 DELAYJOB INHINT
059457,000142: 00,3736 54002 TS Q # STORE DELAY DT IN Q FOR DLY -1 IN
059458,000143:
059459,000144: 00,3737 34752 CAF DELAYNUM # WAITLIST
059460,000145: 00,3740 54070 DELLOOP TS RUPTREG1
059461,000146: 00,3741 50000 INDEX A
059462,000147: 00,3742 31326 CA DELAYLOC # IS THIS DELAYLOC AVAILABLE
059463,000148: 00,3743 00006 EXTEND
059464,000149: 00,3744 13752 BZF OK2DELAY # YES
059465,000150:
059466,000151: 00,3745 10070 CCS RUPTREG1 # NO, TRY NEXT DELAYLOC
059467,000152: 00,3746 13740 TCF DELLOOP
059468,000153:
059469,000154: 00,3747 52134 DXCH BUF2
059470,000155: 00,3750 05710 TC BAILOUT1 # NO AVAILABLE LOCS.
059471,000156: 00,3751 01104 OCT 1104
059472,000157:
059473,000158: 00,3752 33772 OK2DELAY CA TCSLEEP # SET WAITLIST IMMEDIATE RETURN
059474,000159: 00,3753 54061 TS WAITEXIT
059475,000160:
059476,000161: 00,3754 30004 CA FBANK
059477,000162: 00,3755 60070 AD RUPTREG1 # STORE BBANK FOR TASK CALL
059478,000163: 00,3756 54001 TS L
059479,000164:
059480,000165: 00,3757 33773 CAF WAKECAD # STORE CADR FOR TASK CALL
059481,000166: 00,3760 15211 TCF DLY2 -1 # DLY IS IN WAITLIST ROUTINE
059482,000167:
059483,000168: 00,3761 04645 TCGETCAD TC MAKECADR # GET CALLERS FCADR
059484,000169:
059485,000170: 00,3762 50070 INDEX RUPTREG1
059486,000171: 00,3763 55326 TS DELAYLOC # SAVE DELAY CADRS
059487,000172:
059488,000173: 00,3764 05133 TC JOBSLEEP
059489,000174:
059490,000175: 00,3765 34755 WAKER CAF ZERO
059491,000176: 00,3766 50006 INDEX BBANK
059492,000177: 00,3767 57326 XCH DELAYLOC # MAKE DELAYLOC AVAILABLE
![]() |
Page 1372 |
059494,000179: 00,3770 05137 TC JOBWAKE
059495,000180:
059496,000181: 00,3771 05261 TC TASKOVER
059497,000182:
059498,000183: 00,3772 03757 TCSLEEP GENADR TCGETCAD -2
059499,000184: 00,3773 03765 WAKECAD GENADR WAKER
059500,000185:
![]() |
Page 1373 |
059502,000187: # GENTRAN, A BLOCK TRANSFER ROUTINE.
059503,000188:
059504,000189: # WRITTEN BY D. EYLES
059505,000190: # MOD 1 BY KERNAN UTILITYM REV 17 11/18/67
059506,000191:
059507,000192: # MOD 2 BY SCHULENBERG (REMOVE RELINT) SKIPPER REV 4 2/28/68
059508,000193:
059509,000194: # THIS ROUTINE IS USEFULL FOR TRANSFERING N CONSECUTIVE ERASABLE OR FIXED QUANTITIES TO SOME OTHER N
059510,000195: # CONSECUTIVE ERASABLE LOCATIONS. IF BOTH BLOCKS OF DATA ARE IN SWITCHABLE EBANKS, THEY MUST BE IN THE SAME ONE.
059511,000196:
059512,000197: # GENTRAN IS CALLABLE IN A JOB AS WELL AS A RUPT. THE CALLING SEQUENCE IS:
059513,000198: # I CA N-1 # OF QUANTITIES MINUS ONE.
059514,000199: # I +1 TC GENTRAN IN FIXED-FIXED.
059515,000200: # I +2 ADRES L STARTING ADRES OF DATA TO BE MOVED.
059516,000201: # I +3 ADRES M STARTING ADRES OF DUPLICATION BLOCK.
059517,000202: # I +4 RETURNS HERE.
059518,000203:
059519,000204: # GENTRAN TAKES 25 MCT'S (300 MICROSECONDS) PER ITEM + 5 MCT'S (60 MICS) FOR ENTERING AND EXITING.
059520,000205: # A, L AND ITEMP1 ARE NOT PRESERVED.
059521,000206:
059522,000207: 5544 BLOCK 02
059523,000208: 4000 SETLOC FFTAG4
059524,000209: 4000 BANK
059525,000210:
059526,000211: 5544 0061 EBANK= ITEMP1
059527,000212:
059528,000213: 5544 COUNT* $$/TRAN
059529,000214:
059530,000215: 5544 00004 GENTRAN INHINT
059531,000216: 5545 54061 TS ITEMP1 # SAVE N-1.
059532,000217: 5546 50002 INDEX Q # C(Q) = ADRES L.
059533,000218: 5547 60000 AD 0 # ADRES (L + N - 1).
059534,000219: 5550 50000 INDEX A
059535,000220: 5551 30000 CA 0 # C(ABOVE).
059536,000221: 5552 54001 TS L # SAVE DATA.
059537,000222: 5553 30061 CA ITEMP1
059538,000223: 5554 50002 INDEX Q
059539,000224: 5555 60001 AD 1 # ADRES (M + N - 1).
059540,000225: 5556 50000 INDEX A
059541,000226: 5557 22000 LXCH 0 # STUFF IT.
059542,000227: 5560 10061 CCS ITEMP1 # LOOP UNTIL N-1 = 0.
059543,000228: 5561 15545 TCF GENTRAN +1
059544,000229: 5562 16740 TCF Q+2 # RETURN TO CALLER.
059545,000230:
![]() |
Page 1374 |
059547,000232: # B5OFF ZERO BIT 5 OF EXTVBACT, WHICH IS SET BY TESTXACT.
059548,000233: # MAY BE USED AS NEEDED BY ANY EXTENDED VERB WHICH HAS DONE TESTXACT
059549,000234:
059550,000235: 5563 COUNT* $$/EXTVB
059551,000236:
059552,000237: 5563 44747 B5OFF CS BIT5
059553,000238: 5564 71044 MASK EXTVBACT
059554,000239: 5565 55044 TS EXTVBACT
059555,000240: 5566 05155 TC ENDOFJOB
059556,000241:
059557,000242:
059558,000243:
End of include-file SERVICE_ROUTINES.agc. Parent file is MAIN.agc