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. |
059342,000002: ## Copyright: Public domain.
059343,000003: ## Filename: SERVICE_ROUTINES.agc
059344,000004: ## Purpose: The main source file for Luminary revision 069.
059345,000005: ## It is part of the source code for the original release
059346,000006: ## of the flight software for the Lunar Module's (LM) Apollo
059347,000007: ## Guidance Computer (AGC) for Apollo 10. The actual flown
059348,000008: ## version was Luminary 69 revision 2, which included a
059349,000009: ## newer lunar gravity model and only affected module 2.
059350,000010: ## This file is intended to be a faithful transcription, except
059351,000011: ## that the code format has been changed to conform to the
059352,000012: ## requirements of the yaYUL assembler rather than the
059353,000013: ## original YUL assembler.
059354,000014: ## Reference: pp. 1368-1374
059355,000015: ## Assembler: yaYUL
059356,000016: ## Contact: Ron Burkey <info@sandroid.org>.
059357,000017: ## Website: www.ibiblio.org/apollo/index.html
059358,000018: ## Mod history: 2016-12-13 MAS Created from Luminary 99.
059359,000019: ## 2016-12-18 MAS Updated from comment-proofed Luminary 99 version.
059360,000020: ## 2017-01-10 RRB Updated for Luminary 69.
059361,000021: ## 2017-01-21 HG fix operand OCT 7 -> OCT7
059362,000022: ## 2017-01-28 RSB Proofed comment text using octopus/prooferComments
059363,000023: ## and fixed errors found.
059364,000024:
Page 1368 |
059366,000026: 10,3416 BANK 10
059367,000027: 10,2000 SETLOC DISPLAYS
059368,000028: 10,2000 BANK
059369,000029: 10,3416 COUNT* $$/DSPLA
059370,000030:
059371,000031: 10,3416 54001 UPENT2 TS L # WHICH FLAGWORD IS IT
059372,000032: 10,3417 74757 MASK OCT7
059373,000033: 10,3420 56001 XCH L # SAVE IN L FOR INDEXING
059374,000034:
059375,000035: 10,3421 75660 MASK OCT77770 # OBTAIN THE BIT INFORMATION
059376,000036: 10,3422 00004 INHINT # PREVENT INTERUPTS
059377,000037: 10,3423 54061 TS ITEMP1 # STORE THE BIT INFORMATION TEMPORARIALY
059378,000038:
059379,000039: 10,3424 50001 NDX L
059380,000040: 10,3425 40074 CS FLAGWRD0
059381,000041: 10,3426 70061 MASK ITEMP1
059382,000042: 10,3427 50001 NDX L
059383,000043: 10,3430 26074 ADS FLAGWRD0
059384,000044: 10,3431 00003 RELINT # RELEASE INTERUPT INHIBIT
059385,000045:
059386,000046: 10,3432 24002 INCR Q # OBTAIN THE CORRECT RETURN ADDRESS
059387,000047: 10,3433 00002 TC Q # RETURN
059388,000048:
059389,000049: 10,3434 54001 DOWNENT2 TS L # WHICH FLAGWORD IS IT
059390,000050: 10,3435 74757 MASK OCT7
059391,000051: 10,3436 56001 XCH L # SAVE IN L FOR INDEXING
059392,000052:
059393,000053: 10,3437 75660 MASK OCT77770 # OBTAIN THE BIT INFORMATION
059394,000054: 10,3440 40000 COM # START TO PROCESS THE INFORMATION
059395,000055:
059396,000056: 10,3441 00004 INHINT # PREVENT INTERUPTS
059397,000057: 10,3442 50001 NDX L
059398,000058: 10,3443 70074 MASK FLAGWRD0
059399,000059: 10,3444 50001 NDX L
059400,000060: 10,3445 54074 TS FLAGWRD0
059401,000061: 10,3446 00003 RELINT # RELEASE INTERUPT INHIBIT
059402,000062:
059403,000063: 10,3447 24002 INCR Q # OBTAIN THE CORRECT RETURN ADDRESS
059404,000064: 10,3450 00002 TC Q # RETURN
059405,000065:
059406,000066: 10,3451 4757 OCT7 EQUALS SEVEN
059407,000067:
Page 1369 |
059409,000069: # UPFLAG AND DOWNFLAG ARE ENTIRELY GENERAL FLAG SETTING AND CLEARING SUBROUTINES. USING THEM, WHETHER OR
059410,000070: # NOT IN INTERRUPT, ONE MAY SET OR CLEAR ANY SINGLE, NAMED BIT IN ANY ERASABLE REGISTER, SUBJECT OF COURSE TO
059411,000071: # EBANK SETTING. A "NAMED" BIT, AS THE WORD IS USED HERE, IS ANY BIT WITH A NAME FORMALLY ASSIGNED BY THE YUL
059412,000072: # ASSEMBLER.
059413,000073:
059414,000074: # AT PRESENT THE ONLY NAMED BITS ARE THOSE IN THE FLAGWORDS. ASSEMBLER CHANGES WILL MAKE IT POSSIBLE TO
059415,000075: # NAME ANY BIT IN ERASABLE MEMORY.
059416,000076:
059417,000077: # CALLING SEQUENCES ARE AS FOLLOWS :-
059418,000078: # TC UPFLAG TC DOWNFLAG
059419,000079: # ADRES NAME OF FLAG ADRES NAME OF FLAG
059420,000080:
059421,000081: # RETURN IS TO THE LOCATION FOLLOWING THE "ADRES" ABOUT .58 MS AFTER THE "TC".
059422,000082:
059423,000083: # UPON RETURN A CONTAINS THE CURRENT FLAGWRD SETTING.
059424,000084:
059425,000085: 5504 BLOCK 02
059426,000086: 4000 SETLOC FFTAG1
059427,000087: 4000 BANK
059428,000088: 5504 COUNT* $$/FLAG
059429,000089:
059430,000090: 5504 30002 UPFLAG CA Q
059431,000091: 5505 05522 TC DEBIT
059432,000092: 5506 40000 COM # +(15 - BIT)
059433,000093: 5507 00006 EXTEND
059434,000094: 5510 04001 ROR LCHAN # SET BIT
059435,000095: 5511 50061 COMFLAG INDEX ITEMP1
059436,000096: 5512 54074 TS FLAGWRD0
059437,000097: 5513 22063 LXCH ITEMP3
059438,000098: 5514 00003 RELINT
059439,000099: 5515 00001 TC L
059440,000100:
059441,000101: 5516 30002 DOWNFLAG CA Q
059442,000102: 5517 05522 TC DEBIT
059443,000103: 5520 70001 MASK L # RESET BIT
059444,000104: 5521 15511 TCF COMFLAG
059445,000105:
059446,000106: 5522 64753 DEBIT AD ONE # GET DE BITS
059447,000107: 5523 00004 INHINT
059448,000108: 5524 54063 TS ITEMP3
059449,000109: 5525 34762 CA LOW4 # DEC15
059450,000110: 5526 54061 TS ITEMP1
059451,000111: 5527 50063 INDEX ITEMP3
059452,000112: 5530 27777 CA 0 -1 # ADRES
059453,000113: 5531 54001 TS L
059454,000114: 5532 34755 CA ZERO
Page 1370 |
059456,000116: 5533 00006 EXTEND
059457,000117: 5534 10061 DV ITEMP1 # A = FLAGWRD, L = (15 - BIT)
059458,000118: 5535 52062 DXCH ITEMP1
059459,000119: 5536 50061 INDEX ITEMP1
059460,000120: 5537 30074 CA FLAGWRD0
059461,000121: 5540 54001 TS L # CURRENT STATE
059462,000122: 5541 50062 INDEX ITEMP2
059463,000123: 5542 44735 CS BIT15 # -(15 - BIT)
059464,000124: 5543 00002 TC Q
059465,000125:
Page 1371 |
059467,000127: # DELAYJOB - A GENERAL ROUTINE TO DELAY A JOB A SPECIFIC AMOUNT OF TIME BEFORE PICKING UP AGAIN.
059468,000128:
059469,000129: # ENTRANCE REQUIREMENTS ...
059470,000130: # CAF DT DELAY JOB FOR DT CENTISECS
059471,000131: # TC BANKCALL
059472,000132: # CADR DELAYJOB
059473,000133:
059474,000134: 06,3715 BANK 06
059475,000135: 00,2000 SETLOC DLAYJOB
059476,000136: 00,2000 BANK
059477,000137:
059478,000138: # THIS MUST REMAIN IN BANK 0 *****************************************
059479,000139:
059480,000140: 00,3735 COUNT* $$/DELAY
059481,000141: 00,3735 00004 DELAYJOB INHINT
059482,000142: 00,3736 54002 TS Q # STORE DELAY DT IN Q FOR DLY -1 IN
059483,000143:
059484,000144: 00,3737 34752 CAF DELAYNUM # WAITLIST
059485,000145: 00,3740 54070 DELLOOP TS RUPTREG1
059486,000146: 00,3741 50000 INDEX A
059487,000147: 00,3742 31326 CA DELAYLOC # IS THIS DELAYLOC AVAILABLE
059488,000148: 00,3743 00006 EXTEND
059489,000149: 00,3744 13752 BZF OK2DELAY # YES
059490,000150:
059491,000151: 00,3745 10070 CCS RUPTREG1 # NO, TRY NEXT DELAYLOC
059492,000152: 00,3746 13740 TCF DELLOOP
059493,000153:
059494,000154: 00,3747 52134 DXCH BUF2
059495,000155: 00,3750 05710 TC BAILOUT1 # NO AVAILABLE LOCS.
059496,000156: 00,3751 01104 OCT 1104
059497,000157:
059498,000158: 00,3752 33772 OK2DELAY CA TCSLEEP # SET WAITLIST IMMEDIATE RETURN
059499,000159: 00,3753 54061 TS WAITEXIT
059500,000160:
059501,000161: 00,3754 30004 CA FBANK
059502,000162: 00,3755 60070 AD RUPTREG1 # STORE BBANK FOR TASK CALL
059503,000163: 00,3756 54001 TS L
059504,000164:
059505,000165: 00,3757 33773 CAF WAKECAD # STORE CADR FOR TASK CALL
059506,000166: 00,3760 15211 TCF DLY2 -1 # DLY IS IN WAITLIST ROUTINE
059507,000167:
059508,000168: 00,3761 04645 TCGETCAD TC MAKECADR # GET CALLERS FCADR
059509,000169:
059510,000170: 00,3762 50070 INDEX RUPTREG1
059511,000171: 00,3763 55326 TS DELAYLOC # SAVE DELAY CADRS
059512,000172:
059513,000173: 00,3764 05133 TC JOBSLEEP
059514,000174:
059515,000175: 00,3765 34755 WAKER CAF ZERO
059516,000176: 00,3766 50006 INDEX BBANK
059517,000177: 00,3767 57326 XCH DELAYLOC # MAKE DELAYLOC AVAILABLE
Page 1372 |
059519,000179: 00,3770 05137 TC JOBWAKE
059520,000180:
059521,000181: 00,3771 05261 TC TASKOVER
059522,000182:
059523,000183: 00,3772 03757 TCSLEEP GENADR TCGETCAD -2
059524,000184: 00,3773 03765 WAKECAD GENADR WAKER
059525,000185:
Page 1373 |
059527,000187: # GENTRAN, A BLOCK TRANSFER ROUTINE.
059528,000188:
059529,000189: # WRITTEN BY D. EYLES
059530,000190: # MOD 1 BY KERNAN UTILITYM REV 17 11/18/67
059531,000191:
059532,000192: # MOD 2 BY SCHULENBERG (REMOVE RELINT) SKIPPER REV 4 2/28/68
059533,000193:
059534,000194: # THIS ROUTINE IS USEFULL FOR TRANSFERING N CONSECUTIVE ERASABLE OR FIXED QUANTITIES TO SOME OTHER N
059535,000195: # CONSECUTIVE ERASABLE LOCATIONS. IF BOTH BLOCKS OF DATA ARE IN SWITCHABLE EBANKS, THEY MUST BE IN THE SAME ONE.
059536,000196:
059537,000197: # GENTRAN IS CALLABLE IN A JOB AS WELL AS A RUPT. THE CALLING SEQUENCE IS:
059538,000198: # I CA N-1 # OF QUANTITIES MINUS ONE.
059539,000199: # I +1 TC GENTRAN IN FIXED-FIXED.
059540,000200: # I +2 ADRES L STARTING ADRES OF DATA TO BE MOVED.
059541,000201: # I +3 ADRES M STARTING ADRES OF DUPLICATION BLOCK.
059542,000202: # I +4 RETURNS HERE.
059543,000203:
059544,000204: # GENTRAN TAKES 25 MCT'S (300 MICROSECONDS) PER ITEM + 5 MCT'S (60 MICS) FOR ENTERING AND EXITING.
059545,000205: # A, L AND ITEMP1 ARE NOT PRESERVED.
059546,000206:
059547,000207: 5544 BLOCK 02
059548,000208: 4000 SETLOC FFTAG4
059549,000209: 4000 BANK
059550,000210:
059551,000211: 5544 0061 EBANK= ITEMP1
059552,000212:
059553,000213: 5544 COUNT* $$/TRAN
059554,000214:
059555,000215: 5544 00004 GENTRAN INHINT
059556,000216: 5545 54061 TS ITEMP1 # SAVE N-1.
059557,000217: 5546 50002 INDEX Q # C(Q) = ADRES L.
059558,000218: 5547 60000 AD 0 # ADRES (L + N - 1).
059559,000219: 5550 50000 INDEX A
059560,000220: 5551 30000 CA 0 # C(ABOVE).
059561,000221: 5552 54001 TS L # SAVE DATA.
059562,000222: 5553 30061 CA ITEMP1
059563,000223: 5554 50002 INDEX Q
059564,000224: 5555 60001 AD 1 # ADRES (M + N - 1).
059565,000225: 5556 50000 INDEX A
059566,000226: 5557 22000 LXCH 0 # STUFF IT.
059567,000227: 5560 10061 CCS ITEMP1 # LOOP UNTIL N-1 = 0.
059568,000228: 5561 15545 TCF GENTRAN +1
059569,000229: 5562 16740 TCF Q+2 # RETURN TO CALLER.
059570,000230:
Page 1374 |
059572,000232: # B5OFF ZERO BIT 5 OF EXTVBACT, WHICH IS SET BY TESTXACT.
059573,000233: # MAY BE USED AS NEEDED BY ANY EXTENDED VERB WHICH HAS DONE TESTXACT
059574,000234:
059575,000235: 5563 COUNT* $$/EXTVB
059576,000236:
059577,000237: 5563 44747 B5OFF CS BIT5
059578,000238: 5564 71044 MASK EXTVBACT
059579,000239: 5565 55044 TS EXTVBACT
059580,000240: 5566 05155 TC ENDOFJOB
059581,000241:
059582,000242:
059583,000243:
End of include-file SERVICE_ROUTINES.agc. Parent file is MAIN.agc