Source Code
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This source code is very close to the Apollo Guidance Computer software for the
Apollo 13 Lunar module. This revision of the Luminary 131 program is from December
of 1969, whereas there was a later revision in January of 1970, and still another
revision in February, which is the code that flew on the mission.
As far as this transcription is concerned, it was originally from a copy made in 1991 of
a printout from the collection of AGC developer Don Eyles for collector David Craig.
It was subsequently scanned by Gary Neff, reprocessed for online
presentation at the now-discontinued History of Recent Science and Technology (HRST) website
of MIT's Dibner Institute (the full-quality scans being discarded in the process),
and finally transcribed by Ron Burkey for the Virtual AGC Project. Although a
high-quality replacement scan for a completely illegible page was later provided by Gary
Neff, the reduced legibility of the reprocessed HRST posting nevertheless caused many
errors to be introduced into the transcription. Accordingly, a second scan of the same physical
printout was made in 2017 for the Virtual AGC Project's collection at the Internet Archive,
and used to correct the transcription errors. All of the scanned materials mentioned,
as well as other Luminary 131 related material, are available online.
Don Eyles apprently made additional hand-written notes in printout between 1991 and 2017,
so the two scans are not identical in that respect. The page-headings in the printout read, in part:GAP: ASSEMBLE REVISION 131 OF AGC PROGRAM LUMINARY BY NASA 2021112-091 17:53 DEC. 19, 1969Note that the date is the date the printout was made, not the date on which the program revision was released, although these happen to be very close together. |
058077,000002: ## Copyright: Public domain.
058078,000003: ## Filename: UPDATE_PROGRAM.agc
058079,000004: ## Purpose: A section of Luminary 1C, revision 131.
058080,000005: ## It is part of the source code for the Lunar Module's (LM)
058081,000006: ## Apollo Guidance Computer (AGC) for Apollo 13.
058082,000007: ## This file is intended to be a faithful transcription, except
058083,000008: ## that the code format has been changed to conform to the
058084,000009: ## requirements of the yaYUL assembler rather than the
058085,000010: ## original YUL assembler.
058086,000011: ## Reference: pp. 1378-1388
058087,000012: ## Contact: Ron Burkey <info@sandroid.org>.
058088,000013: ## Website: www.ibiblio.org/apollo/index.html
058089,000014: ## Mod history: 06/07/03 RSB. Began transcribing.
058090,000015: ## 05/14/05 RSB Corrected website reference above.
058091,000016: ## 2010-10-25 JL Indentation fixes.
058092,000017: ## 2011-05-07 JL Flagged SBANK= workaround for future removal.
058093,000018: ## 2017-01-06 RSB Page numbers now agree with those on the
058094,000019: ## original hardcopy, as opposed to the PDF page
058095,000020: ## numbers in 1701.pdf.
058096,000021: ## 2017-01-28 RSB Comment-text fixes identified for Luminary 69.
058097,000022: ## 2017-02-09 RSB Comment-text fixes identified for Artemis 72.
058098,000023: ## 2017-02-28 RSB Proofed comment text using octopus/ProoferComments.
058099,000024: ## 2017-03-13 RSB Comment-text fixes noted in proofing Luminary 116.
058100,000025: ## 2017-03-16 RSB Comment-text fixes identified in 5-way
058101,000026: ## side-by-side diff of Luminary 69/99/116/131/210.
058102,000027: ## 2017-06-17 MAS Globally removed all SBANK= workarounds.
058103,000028:
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Page 1378 |
058105,000030: # PROGRAM NAME: P27
058106,000031: # WRITTEN BY: KILROY/ DE WOLF
058107,000032:
058108,000033: # MOD NO: 6
058109,000034: # MOD BY: KILROY
058110,000035: # DATE: 01DEC67
058111,000036:
058112,000037: # LOG SECTION: UPDATE PROGRAM.
058113,000038:
058114,000039: # FUNCT. DESCR: P27 (THE UPDATE PROGRAM) PROCESSES COMMANDS AND DATA
058115,000040: # INSERTIONS REQUESTED BY THE GROUND VIA UPLINK.
058116,000041: # THE P27 PROGRAM WILL ACCEPT UPDATES
058117,000042: # ONLY DURING P00 FOR THE LM, AND ONLY DURING P00,
058118,000043: # P02, AND FRESH START FOR THE CSM
058119,000044:
058120,000045: # CALLING SEQ: PROGRAM IS INITIATED BY UPLINK ENTRY OF VERBS 70, 71, 72 AND 73.
058121,000046:
058122,000047: # SUBROUTINES: TESTXACT, NEWMODEX, NEWMODEX +3, GOXDSPF, BANKCALL, FINDVAC, INTPRET, INTSTALL, TPAGREE,
058123,000048: # INTWAKEU, ENDEXT, POSTJUMP, FALTON, NEWPHASE, PHASCHNG
058124,000049:
058125,000050: # NORMAL EXIT: TC ENDEXT
058126,000051:
058127,000052: # ALARM/ABORT: TC FALTON FOLLOWED BY TC ENDEXT
058128,000053:
058129,000054: # RESTARTS: P27 IS RESTART PROTECTED IN TWO WAYS ...
058130,000055: # 1. PRIOR TO VERIFLAG INVERSION (WHICH IS CAUSED BY THE GROUND/ASTRONAUT'S VERIFICATION OF UPDATE
058131,000056: # DATA BY SENDING A V33E WHEN V21N02 IS FLASHING)---
058132,000057: # NO PROTECTION EXCEPT PRE-P27 MODE IS RESTORED, COAST + ALIGN DOWNLIST IS SELECTED AND UPLINK
058133,000058: # ACTIVITY LIGHT IS TURNED OFF. (JUST AS IF A V34E WAS SENT DURING P27 DATA LOADS).
058134,000059: # V70,V71,V72 OR V73 WILL HAVE TO BE COMPLETELY RESENT BY USER.
058135,000060: # 2. AFTER VERIFLAG INVERSION (WHEN UPDATE OF THE SPECIFIED ERASABLES IS BEING PERFORMED)---
058136,000061: # PROTECTED AGAINST RESTARTS.
058137,000062:
058138,000063: # DEBRIS: UPBUFF (20D) TEMP STORAGE FOR ADDRESSES AND CONTENTS.
058139,000064: # UPVERB (1) VERB NUMBER MINUS 70D (E.G. FOR V72, UPVERB = 72D - 70D = 2)
058140,000065: # UPOLDMOD(1) FOR MAJOR MODE INTERRUPTED BY P27.
058141,000066: # COMPNUMB(1) TOTAL NUMBER OF COMPONENTS TO BE TRANSMITTED.
058142,000067: # UPCOUNT (1) ACTUAL NUMBER OF COMPONENTS RECEIVED.
058143,000068: # UPTEMP (1) SCRATCH, BUT USUALLY CONTAINS COMPONENT NUMBER TO BE CHANGED DURING VERIFY CYCLE
058144,000069:
058145,000070: # INPUT:
058146,000071:
058147,000072: # ENTRY: DESCRIPTION
058148,000073: # V70EXXXXXEXXXXXE (LIFTOFF TIME INCREMENT) DOUBLE PRECISION OCTAL TIME INCREMENT, XXXXX XXXXX,
058149,000074: # IS ADDED TO TEPHEM, SUBTRACTED FROM AGC CLOCK(TIME2,TIME1), SUBTRACTED FROM CSM STATE
058150,000075: # VECTOR TIME(TETCSM) AND SUBTRACTED FROM LEM STATE VECTOR TIME(TETLEM).
058151,000076: # THE DP OCTAL TIME INCREMENT IS SCALED AT 2(28).
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Page 1379 |
058153,000078: # V71EIIEAAAAE (CONTIGUOUS BLOCK UPDATE) II-2 OCTAL COMPONENTS, XXXXX,
058154,000079: # XXXXXE ARE LOADED INTO ERASABLE STARTING AT ECADR, AAAA.
058155,000080: # XXXXXE IT IS .GE. 3 .AND. .LE. 20D.,
058156,000081: # AND (AAAA + II -3) DOES NOT PRODUCE AN ADDRESS IN THE
058157,000082: # 9 NEXT BANK
058158,000083: # . SCALING IS SAME AS INTERNAL REGISTERS.
058159,000084:
058160,000085: # V72EIIE (SCATTER UPDATE) (II-1)/2 OCTAL COMPONENTS, XXXXX, ARE
058161,000086: # AAAAEXXXXXE LOADED INTO ERASABLE LOCATIONS, AAAA.
058162,000087: # AAAAEXXXXXE II IS .GE. 3 .AND. .LE. 19D, AND MUST BE ODD.
058163,000088: # . SCALING IS SAME AS INTERNAL REGISTERS.
058164,000089:
058165,000090: # V73EXXXXXEXXXXXE (OCTAL CLOCK INCREMENT) DOUBLE PRECISION OCTAL TIME
058166,000091: # INCREMENT XXXXX XXXXX, IS ADDED TO THE AGC CLOCK, IN
058167,000092: # CENTISECONDS SCALED AT (2)28.
058168,000093: # THIS LOAD IS THE OCTAL EQUIVALENT OF V55.
058169,000094:
058170,000095: # OUTPUT: IN ADDITION TO THE ABOVE REGISTER LOADS, ALL UPDATES
058171,000096: # COMPLEMENT BIT3 OF FLAGWORD7.
058172,000097:
058173,000098: # ADDITIONAL NOTES: VERB 71, JUST DEFINED ABOVE WILL BE USED TO PERFORM BUT NOT LIMITED TO THE FOLLOWING UPDATES --
058174,000099: # 1. CSM/LM STATE VECTOR UPDATE
058175,000100: # 2. REFSMMAT UPDATE
058176,000101:
058177,000102: # THE FOLLOWING COMMENTS DELINEATE EACH SPECIAL UPDATE----
058178,000103:
058179,000104: # 1. CSM/LM STATE VECTOR UPDATE (ALL DATA ENTRIES IN OCTAL)
058180,000105: # ENTRIES: DATA DEFINITION: SCALE FACTORS:
058181,000106: # V71E CONTIGUOUS BLOCK UPDATE VERB
058182,000107: # 21E NUMBER OF COMPONENTS FOR STATE VECTOR UPDATE
058183,000108: # AAAAE ECADR OF 'UPSVFLAG'
058184,000109: # XXXXXE STATE VECTOR IDENTIFIER: 00001 FOR CSM, 77776 FOR LEM - EARTH SPHERE OF INFLUENCE SCALING
058185,000110: # 00002 FOR CSM, 77775 FOR LEM - LUNAR SPHERE OF INFLUENCE SCALING
058186,000111: # XXXXXEXXXXXE X POSITION
058187,000112: # XXXXXEXXXXXE Y POSITION
058188,000113: # XXXXXEXXXXXE Z POSITION
058189,000114: # XXXXXEXXXXXE X VELOCITY
058190,000115: # XXXXXEXXXXXE Y VELOCITY
058191,000116: # XXXXXEXXXXXE Z VELOCITY
058192,000117: # XXXXXEXXXXXE TIME FROM AGC CLOCK ZERO
058193,000118: # V33E VERB 33 TO SIGNAL THAT THE STATE VECTOR IS READY TO BE STORED.
058194,000119:
058195,000120: # 2. REFSMMAT (ALL DATA ENTRIES IN OCTAL)
058196,000121: # ENTRIES: DATA DEFINITIONS: SCALE FACTORS:
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Page 1380 |
058198,000123: # V71E CONTIGUOUS BLOCK UPDATE VERB
058199,000124: # 24E NUMBER OF COMPONENTS FOR REFSMMAT UPDATE
058200,000125: # AAAAE ECADR OF 'REFSMMAT'
058201,000126: # XXXXXEXXXXXE ROW 1 COLUMN 1 2(-1)
058202,000127: # XXXXXEXXXXXE ROW 1 COLUMN 2 2(-1)
058203,000128: # XXXXXEXXXXXE ROW 1 COLUMN 3 2(-1)
058204,000129: # XXXXXEXXXXXE ROW 2 COLUMN 1 2(-1)
058205,000130: # XXXXXEXXXXXE ROW 2 COLUMN 2 2(-1)
058206,000131: # XXXXXEXXXXXE ROW 2 COLUMN 3 2(-1)
058207,000132: # XXXXXEXXXXXE ROW 3 COLUMN 1 2(-1)
058208,000133: # XXXXXEXXXXXE ROW 3 COLUMN 2 2(-1)
058209,000134: # XXXXXEXXXXXE ROW 3 COLUMN 3 2(-1)
058210,000135: # V33E VERB 33 TO SIGNAL THAT REFSMMAT IS READY TO BE STORED.
058211,000136:
058212,000137: 07,3763 BANK 07
058213,000138: 43,2000 SETLOC EXTVERBS
058214,000139: 43,2000 BANK
058215,000140:
058216,000141: 43,3751 E3,1706 EBANK= TEPHEM
058217,000142:
058218,000143: 43,3751 COUNT* $$/P27
058219,000144: 43,3751 34755 V70UPDAT CAF UP70 # COMES HERE ON V70E
058220,000145: 43,3752 13760 TCF V73UPDAT +1
058221,000146:
058222,000147: 43,3753 34753 V71UPDAT CAF UP71 # COMES HERE ON V71E
058223,000148: 43,3754 13760 TCF V73UPDAT +1
058224,000149:
058225,000150: 43,3755 34752 V72UPDAT CAF UP72 # COMES HERE ON V72E
058226,000151: 43,3756 13760 TCF V73UPDAT +1
058227,000152:
058228,000153: 43,3757 36250 V73UPDAT CAF UP73 # COMES HERE ON V73E
058229,000154:
058230,000155: 43,3760 55165 +1 TS UPVERBSV # SAVE UPVERB UNTIL IT'S OK TO ENTER P27
058231,000156:
058232,000157: 43,3761 02076 TC TESTXACT # GRAB DISPLAY IF AVAILABLE, OTHERWISE
058233,000158: # TURN *OPERATOR ERROR* ON AND TERMINATEJOB
058234,000159:
058235,000160: 43,3762 31010 CA MODREG # CHECK IF UPDATE ALLOWED
058236,000161: 43,3763 00006 EXTEND # FIRST CHECK FOR MODREG = +0, -0
058237,000162: 43,3764 13767 BZF +3 # (+0 = P00, -0 = FRESHSTART)
058238,000163: 43,3765 04635 UPERROR TC POSTJUMP # TURN ON 'OPERATOR ERROR' LIGHT
058239,000164: 43,3766 11740 CADR UPERROUT +2 # GO TO COMMON UPDATE PROGRAM EXIT
058240,000165:
058241,000166: 43,3767 43,3765 CKMDMORE = UPERROR
058242,000167: 43,3767 55170 +3 TS UPOLDMOD # SET UPOLDMOD TO ZERO.
058243,000168: 43,3770 31165 CAE UPVERBSV # SET UPVERB TO INDICATE TO P27
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Page 1381 |
058245,000170: 43,3771 55171 TS UPVERB # WHICH EXTENDED VERB CALLED IT.
058246,000171:
058247,000172: 43,3772 34753 CAF ONE
058248,000173: 43,3773 55172 TS UPCOUNT # INITIALIZE UPCOUNT TO 1
058249,000174:
058250,000175: 43,3774 04635 TC POSTJUMP # LEAVE EXTENDED VERB BANK AND
058251,000176: 43,3775 11357 CADR UPPART2 # GO TO UPDATE PROGRAM (P27) BANK.
058252,000177:
058253,000178: 43,3776 4755 UP70 EQUALS ZERO
058254,000179: 43,3776 4753 UP71 EQUALS ONE
058255,000180: 43,3776 4752 UP72 EQUALS TWO
058256,000181: 43,3776 6250 UP73 EQUALS THREE
058257,000182:
058258,000183: 04,3357 BANK 04
058259,000184: 04,2000 SETLOC UPDATE2
058260,000185: 04,2000 BANK
058261,000186:
058262,000187: 04,3357 COUNT* $$/P27
058263,000188:
058264,000189: 04,3357 UPPART2 EQUALS # UPDATE PROGRAM - PART 2
058265,000190:
058266,000191: 04,3357 05353 TC PHASCHNG # SET RESTART GROUP 6 TO RESTORE OLD MODE
058267,000192: 04,3360 07026 OCT 07026 # AND DOWNLIST AND EXIT IF RESTART OCCURS.
058268,000193: 04,3361 30000 OCT 30000 # PRIORITY SAME AS CHRPRIO
058269,000194: 04,3362 1173 EBANK= UPBUFF
058270,000195: 04,3362 03670 10102 2CADR UPOUT +1
058271,000196:
058272,000197: 04,3364 34753 CAF ONE
058273,000198: 04,3365 54333 TS DNLSTCOD # DOWNLIST
058274,000199:
058275,000200: 04,3366 05311 TC NEWMODEX # SET MAJOR MODE = 27
058276,000201: 04,3367 00033 DEC 27 B-14
058277,000202:
058278,000203: 04,3370 51171 INDEX UPVERB # BRANCH DEPENDING ON WHETHER THE UPDATE
058279,000204: 04,3371 13372 TCF +1 # VERB REQUIRES A FIXED OR VARIABLE NUMBER
058280,000205: 04,3372 13375 TCF +3 # V70 FIXED. (OF COMPONENTS.
058281,000206: 04,3373 13400 TCF OHWELL1 # V71 VARIABLE - GO GET NO. OF COMPONENTS
058282,000207: 04,3374 13400 TCF OHWELL1 # V72 VARIABLE - GO GET NO. OF COMPONENTS
058283,000208: 04,3375 34752 CA TWO # V73 (AND V70) FIXED
058284,000209: 04,3376 55167 TS COMPNUMB # SET NUMBER OF COMPONENTS TO 2.
058285,000210: 04,3377 13423 TCF OHWELL2 # GO GET THE TWO UPDATE COMPONENTS
058286,000211:
058287,000212: 04,3400 33473 OHWELL1 CAF ADUPBUFF # * REQUEST USER TO SEND NUMBER *
058288,000213: 04,3401 54156 TS MPAC +2 # * OF COMPONENTS PARAMETER(II). *
058289,000214: 04,3402 33474 +2 CAF UPLOADNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
058290,000215: 04,3403 04616 TC BANKCALL # DISPLAY A FLASHING V21N01
058291,000216: 04,3404 20334 CADR GOXDSPF # TO REQUEST II.
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Page 1382 |
058293,000218: 04,3405 13670 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN
058294,000219: 04,3406 13402 TCF OHWELL1 +2
058295,000220: 04,3407 03464 TC CK4V32 # DATA OR V32 RETURN
058296,000221: 04,3410 44752 CS BIT2
058297,000222: 04,3411 61173 AD UPBUFF # IS II (NUMBER OF COMPONENTS PARAMETER)
058298,000223: 04,3412 00006 EXTEND # .GE. 3 AND .LE. 20D.
058299,000224: 04,3413 63402 BZMF OHWELL1 +2
058300,000225: 04,3414 41173 CS UPBUFF
058301,000226: 04,3415 64362 AD UP21
058302,000227: 04,3416 00006 EXTEND
058303,000228: 04,3417 63402 BZMF OHWELL1 +2
058304,000229: 04,3420 31173 CAE UPBUFF
058305,000230: 04,3421 55167 TS COMPNUMB # SAVE II IN COMPNUMB
058306,000231:
058307,000232: # UPBUFF LOADING SEQUENCE
058308,000233:
058309,000234: 04,3422 25172 INCR UPCOUNT # INCREMENT COUNT OF COMPONENTS RECEIVED.
058310,000235: 04,3423 33640 OHWELL2 CAF ADUPBFM1 # CALCULATE LOCATION (ECADR) IN UPBUFF
058311,000236: 04,3424 61172 AD UPCOUNT # WHERE NEXT COMPONENT SHOULD BE STORED.
058312,000237: 04,3425 54156 +2 TS MPAC +2 # PLACE ECADR INTO R3.
058313,000238: 04,3426 33474 +3 CAF UPLOADNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
058314,000239: 04,3427 04616 TC BANKCALL # DISPLAY A FLASHING V21N01
058315,000240: 04,3430 20334 CADR GOXDSPF # TO REQUEST DATA.
058316,000241: 04,3431 13670 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN.
058317,000242: 04,3432 13426 TCF OHWELL2 +3 # V33 PROCEED RETURN
058318,000243: 04,3433 03464 TC CK4V32 # DATA OR V32 RETURN
058319,000244: 04,3434 41172 CS UPCOUNT # HAVE WE FINISHED RECEIVING ALL
058320,000245: 04,3435 61167 AD COMPNUMB # THE DATA WE EXPECTED.
058321,000246: 04,3436 00006 EXTEND
058322,000247: 04,3437 63441 BZMF UPVERIFY # YES - GO TO VERIFICATION SEQUENCE
058323,000248: 04,3440 13422 TCF OHWELL2 -1 # NO - REQUEST ADDITIONAL DATA.
058324,000249:
058325,000250: # VERIFY SEQUENCE
058326,000251:
058327,000252: 04,3441 33472 UPVERIFY CAF ADUPTEMP # PLACE ECADR WHERE COMPONENT NO. INDEX
058328,000253: 04,3442 54156 TS MPAC +2 # IS TO BE STORED INTO R3.
058329,000254: 04,3443 33475 CAF UPVRFYNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
058330,000255: 04,3444 04616 TC BANKCALL # DISPLAY A FLASHING V21N02 TO REQUEST
058331,000256: 04,3445 20334 CADR GOXDSPF # DATA CORRECTION OR VERIFICATION.
058332,000257: 04,3446 13670 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN
058333,000258: 04,3447 13476 TCF UPSTORE # V33 DATA SENT IS GOOD. GO STORE IT.
058334,000259: 04,3450 03464 TC CK4V32 # COMPONENT NO. INDEX OR V32 RETURN
058335,000260: 04,3451 31166 CA UPTEMP # DOES THE COMPONENT NO. INDEX JUST SENT
058336,000261: 04,3452 00006 EXTEND # SPECIFY A LEGAL COMPONENT NUMBER?
058337,000262: 04,3453 63441 BZMF UPVERIFY # NO, IT IS NOT POSITIVE NONZERO
058338,000263: 04,3454 41166 CS UPTEMP
058339,000264: 04,3455 61167 AD COMPNUMB
058340,000265: 04,3456 64753 AD BIT1
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Page 1383 |
058342,000267: 04,3457 00006 EXTEND
058343,000268: 04,3460 63441 BZMF UPVERIFY # NO
058344,000269: 04,3461 33640 CAF ADUPBFM1 # YES - BASED ON THE COMPONENT NO. INDEX
058345,000270: 04,3462 61166 AD UPTEMP # CALCULATE THE ECADR OF LOCATION IN
058346,000271: 04,3463 13425 TCF OHWELL2 +2 # UPBUFF WHICH USER WANTS TO CHANGE.
058347,000272:
058348,000273: 04,3464 04,3670 UPOUT4 EQUALS UPOUT +1 # COMES HERE ON V34 TO TERMINATE UPDATE
058349,000274:
058350,000275: # CHECK FOR VERB 32 SEQUENCE
058351,000276:
058352,000277: 04,3464 40154 CK4V32 CS MPAC # ON DATA RETURN FROM 'GOXDSPF'
058353,000278: 04,3465 74746 MASK BIT6 # ON DATA RETURN FROM "GOXDSP" & THE CON-
058354,000279: 04,3466 10000 CCS A # TENTS OF MPAC = VERB. SO TEST FOR V32.
058355,000280: 04,3467 00002 TC Q # IT'S NOT A V32, IT'S DATA. PROCEED.
058356,000281: 04,3470 50002 INDEX Q
058357,000282: 04,3471 77771 TC 0 -6 # V32 ENCOUNTERED - GO BACK AND GET DATA
058358,000283:
058359,000284: 04,3472 01166 ADUPTEMP ADRES UPTEMP # ADDRESS OF TEMP STORAGE FOR CORRECTIONS
058360,000285: 04,3473 01173 ADUPBUFF ADRES UPBUFF # ADDRESS OF UPDATE DATA STORAGE BUFFER
058361,000286: 04,3474 05201 UPLOADNV VN 2101 # VERB 21 NOUN 01
058362,000287: 04,3475 05202 UPVRFYNV VN 2102 # VERB 21 NOUN 02
058363,000288: 04,3476 4362 UP21 = MD1 # DEC 21 = MAX NO OF COMPONENTS +1
058364,000289: 04,3476 4756 UPDTPHAS EQUALS FIVE
058365,000290:
058366,000291: # PRE-STORE AND FAN TO APPROPRIATE BRANCH SEQUENCE
058367,000292:
058368,000293: 04,3476 UPSTORE EQUALS # GROUND HAS VERIFIED UPDATE. STORE DATA.
058369,000294:
058370,000295: 04,3476 00004 INHINT
058371,000296:
058372,000297: 04,3477 30103 CAE FLAGWRD7 # INVERT VERIFLAG (BIT 3 OF FLAGWRD7) TO
058373,000298: 04,3500 56001 XCH L # INDICATE TO THE GROUND (VIA DOWNLINK)
058374,000299: 04,3501 34751 CAF VERIFBIT # THAT THE V33 (WHICH THE GROUND SENT TO
058375,000300: 04,3502 00006 EXTEND # VERIFY THE UPDATE) HAS BEEN SUCCESSFULLY
058376,000301: 04,3503 06001 RXOR LCHAN # RECEIVED BY THE UPDATE PROGRAM
058377,000302: 04,3504 54103 TS FLAGWRD7
058378,000303:
058379,000304: 04,3505 05353 TC PHASCHNG # SET RESTART GROUP 6 TO REDO THE UPDATE
058380,000305: 04,3506 04026 OCT 04026 # DATA STORE IF A RESTART OCCURS.
058381,000306: 04,3507 00004 INHINT # (BECAUSE PHASCHNG DID A RELINT)
058382,000307:
058383,000308: 04,3510 44752 CS TWO # GO TO UPFNDVAC IF INSTALL IS REQUIRED,
058384,000309: 04,3511 61171 AD UPVERB # THAT IS, IF IT'S A V70 - V72.
058385,000310: 04,3512 00006 EXTEND # GO TO UPEND73 IF IT'S A V73.
058386,000311: 04,3513 63522 BZMF UPFNDVAC
058387,000312:
058388,000313: # VERB 73 BRANCH
058389,000314:
058390,000315: 04,3514 00006 UPEND73 EXTEND # V73 - PERFORM DP OCTAL AGC CLOCK INCREMENT
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Page 1384 |
058392,000317: 04,3515 31174 DCA UPBUFF
058393,000318: 04,3516 53204 DXCH UPBUFF +8D
058394,000319: 04,3517 03545 TC TIMEDIDL
058395,000320: 04,3520 04364 TC FALTON # ERROR - TURN ON *OPERATOR ERROR* LIGHT
058396,000321: 04,3521 03670 TC UPOUT +1 # GO TO COMMON UPDATE PROGRAM EXIT
058397,000322:
058398,000323: 04,3522 34355 UPFNDVAC CAF CHRPRIO # (USE EXTENDED VERB PRIORITY)
058399,000324: 04,3523 05105 TC FINDVAC # GET VAC AREA FOR 'CALL INTSTALL'
058400,000325: 04,3524 E3,1706 EBANK= TEPHEM
058401,000326: 04,3524 03527 10103 2CADR UPJOB # (NOTE: THIS WILL ALSO SET EBANK FOR
058402,000327: 04,3526 05155 TC ENDOFJOB # 'TEPHEM' UPDATE BY V70)
058403,000328:
058404,000329: 04,3527 06042 UPJOB TC INTPRET # THIS COULD BE A STATE VECTOR UPDATE -- SO
058405,000330: 04,3530 77624 CALL # WAIT (PUT JOB TO SLEEP) IF ORBIT INT(OI)
058406,000331: 04,3531 27410 INTSTALL # IS IN PROGRESS -- OR -- GRAB OI AND RETURN
058407,000332: # TO UPWAKE IF OI IS NOT IN PROGRESS.
058408,000333:
058409,000334: 04,3532 77776 UPWAKE EXIT
058410,000335:
058411,000336: 04,3533 05353 TC PHASCHNG # RESTART PROTECT (GROUP 6)
058412,000337: 04,3534 04026 OCT 04026
058413,000338:
058414,000339: 04,3535 05504 TC UPFLAG # SET INTEGRATION RESTART BIT
058415,000340: 04,3536 00236 ADRES REINTFLG
058416,000341: 04,3537 00004 INHINT
058417,000342: 04,3540 UPPART3 EQUALS
058418,000343:
058419,000344: 04,3540 51171 INDEX UPVERB # BRANCH TO THE APPROPRIATE UPDATE VERB
058420,000345: 04,3541 13542 TCF +1 # ROUTINE TO ACTUALLY PERFORM THE UPDATE
058421,000346: 04,3542 13701 TCF UPEND70 # V70
058422,000347: 04,3543 13610 TCF UPEND71 # V71
058423,000348: 04,3544 13642 TCF UPEND72 # V72
058424,000349:
058425,000350: # ROUTINE TO INCREMENT CLOCK (TIME2,TIME1) WITH CONTENTS OF DP WORD AT UPBUFF.
058426,000351:
058427,000352: 04,3545 00006 TIMEDIDL EXTEND
058428,000353: 04,3546 23166 QXCH UPTEMP # SAVE Q FOR RETURN
058429,000354: 04,3547 34755 CAF ZERO # ZERO AND SAVE TIME2,TIME1
058430,000355: 04,3550 22007 ZL
058431,000356: 04,3551 52025 DXCH TIME2
058432,000357: 04,3552 53216 DXCH UPBUFF +18D # STORE IN CASE OF OVERFLOW
058433,000358:
058434,000359: 04,3553 34756 CAF UPDTPHAS # DO
058435,000360: 04,3554 54001 TS L # A
058436,000361: 04,3555 40000 COM # QUICK
058437,000362: 04,3556 52764 DXCH -PHASE6 # PHASCHNG
058438,000363:
058439,000364: 04,3557 00004 TIMEDIDR INHINT
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Page 1385 |
058441,000366: 04,3560 34755 CAF ZERO
058442,000367: 04,3561 22007 ZL # PICK UP INCREMENTER(AND ZERO
058443,000368: 04,3562 54156 TS MPAC +2 # IT IN CASE OF RESTARTS) AND
058444,000369: 04,3563 53204 DXCH UPBUFF +8D # STORE IT
058445,000370: 04,3564 52155 DXCH MPAC # INTO MPAC FOR TPAGREE.
058446,000371:
058447,000372: 04,3565 00006 EXTEND
058448,000373: 04,3566 31216 DCA UPBUFF +18D
058449,000374: 04,3567 20155 DAS MPAC # FORM SUM IN MPAC
058450,000375: 04,3570 00006 EXTEND
058451,000376: 04,3571 13600 BZF DELTAOK # TEST FOR OVERFLOW
058452,000377: 04,3572 34755 CAF ZERO
058453,000378: 04,3573 53216 DXCH UPBUFF +18D # OVERFLOW, RESTORE OLD VALUE OF CLOCK
058454,000379: 04,3574 20025 DAS TIME2 # AND TURN ON OPERATOR ERROR
058455,000380:
058456,000381: 04,3575 05353 TC PHASCHNG # RESTART PROTECT (GROUP 6)
058457,000382: 04,3576 04026 OCT 04026
058458,000383:
058459,000384: 04,3577 01166 TC UPTEMP # GO TO ERROR EXIT
058460,000385:
058461,000386: 04,3600 07262 DELTAOK TC TPAGREE # FORCE SIGN AGREEMENT
058462,000387: 04,3601 52155 DXCH MPAC
058463,000388: 04,3602 20025 DAS TIME2 # INCREMENT TIME2,TIME1
058464,000389:
058465,000390: 04,3603 05353 TC PHASCHNG # RESTART PROTECT (GROUP 6)
058466,000391: 04,3604 04026 OCT 04026
058467,000392:
058468,000393: 04,3605 00004 INHINT
058469,000394: 04,3606 51166 INDEX UPTEMP # (CODED THIS WAY FOR RESTART PROTECTION)
058470,000395: 04,3607 00001 TC 1 # NORMAL RETURN
058471,000396:
058472,000397: # VERB 71 BRANCH
058473,000398:
058474,000399: 04,3610 31174 UPEND71 CAE UPBUFF +1 # SET EBANK
058475,000400: 04,3611 54003 TS EBANK # AND
058476,000401: 04,3612 74357 MASK LOW8 # CALCULATE
058477,000402: 04,3613 55166 TS UPTEMP # S-REG VALUE OF RECEIVING AREA
058478,000403:
058479,000404: 04,3614 67750 AD NEG3 # IN THE PROCESS OF
058480,000405: 04,3615 61167 AD COMPNUMB # PERFORMING
058481,000406: 04,3616 00006 EXTEND # THIS UPDATE
058482,000407: 04,3617 13625 BZF STORLP71 # WILL WE
058483,000408: 04,3620 74743 MASK BIT9 # OVERFLOW
058484,000409: 04,3621 10000 CCS A # INTO THE NEXT EBANK....
058485,000410: 04,3622 13736 TCF UPERROUT # YES
058486,000411:
058487,000412: 04,3623 37750 CA NEG3 # NO - CALCULATE NUMBER OF
058488,000413: 04,3624 61167 AD COMPNUMB # WORDS TO BE STORED MINUS ONE
058489,000414: 04,3625 54154 STORLP71 TS MPAC # SAVE NO. OF WORDS REMAINING MINUS ONE
058490,000415: 04,3626 50000 INDEX A # TAKE NEXT UPDATE WORD FROM
058491,000416: 04,3627 31175 CA UPBUFF +2 # UPBUFF AND
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Page 1386 |
058493,000418: 04,3630 54001 TS L # SAVE IT IN L
058494,000419: 04,3631 30154 CA MPAC # CALCULATE NEXT
058495,000420: 04,3632 61166 AD UPTEMP # RECEIVING ADDRESS
058496,000421: 04,3633 50000 INDEX A
058497,000422: 04,3634 E3,1400 EBANK= 1400
058498,000423: 04,3634 23400 LXCH 1400 # UPDATE THE REGISTER BY CONTENTS OF L
058499,000424: 04,3635 E3,1706 EBANK= TEPHEM
058500,000425: 04,3635 10154 CCS MPAC # ARE THERE ANY WORDS LEFT TO BE STORED
058501,000426: 04,3636 13625 TCF STORLP71 # YES
058502,000427: 04,3637 13667 TCF UPOUT # NO - THEN EXIT UPDATE PROGRAM
058503,000428: 04,3640 01172 ADUPBFM1 ADRES UPBUFF -1 # SAME AS ADUPBUFF BUT LESS 1 (DON'T MOVE)
058504,000429: 04,3641 13667 TCF UPOUT # NO - EXIT UPDATE (HERE WHEN COMPNUMB = 3)
058505,000430:
058506,000431: # VERB 72 BRANCH
058507,000432:
058508,000433: 04,3642 34753 UPEND72 CAF BIT1 # HAVE AN ODD NO. OF COMPONENTS
058509,000434: 04,3643 71167 MASK COMPNUMB # BEEN SENT FOR A V72 UPDATE ...
058510,000435: 04,3644 10000 CCS A
058511,000436: 04,3645 13647 TCF +2 # YES
058512,000437: 04,3646 13736 TCF UPERROUT # ERROR - SHOULD BE ODD NO. OF COMPONENTS
058513,000438: 04,3647 44752 CS BIT2
058514,000439: 04,3650 61167 AD COMPNUMB
058515,000440: 04,3651 54154 LDLOOP72 TS MPAC # NOW PERFORM THE UPDATE
058516,000441: 04,3652 50000 INDEX A
058517,000442: 04,3653 31174 CAE UPBUFF +1 # PICK UP NEXT UPDATE WORD
058518,000443: 04,3654 22000 LXCH A
058519,000444: 04,3655 10154 CCS MPAC # SET POINTER TO ECADR (MUST BE CCS)
058520,000445: 04,3656 54154 TS MPAC
058521,000446: 04,3657 50000 INDEX A
058522,000447: 04,3660 31174 CAE UPBUFF +1 # PICK UP NEXT ECADR OF REG TO BE UPDATED
058523,000448: 04,3661 54003 TS EBANK # SET EBANK
058524,000449: 04,3662 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
058525,000450: 04,3663 50000 INDEX A
058526,000451: 04,3664 E3,1400 EBANK= 1400
058527,000452: 04,3664 23400 LXCH 1400 # UPDATE THE REGISTER BY CONTENTS OF L
058528,000453: 04,3665 E3,1706 EBANK= TEPHEM
058529,000454: 04,3665 10154 CCS MPAC # ARE WE THROUGH THE V72 UPDATE...
058530,000455: 04,3666 13651 TCF LDLOOP72 # NO
058531,000456:
058532,000457: # NORMAL FINISH OF P27
058533,000458:
058534,000459: 04,3667 UPOUT EQUALS
058535,000460: 04,3667 03131 TC INTWAKEU # RELEASE GRAB OF ORBITAL INTEGRATION
058536,000461: 04,3670 31170 +1 CAE UPOLDMOD # RESTORE PRIOR P27 MODE
058537,000462: 04,3671 05314 TC NEWMODEX +3
058538,000463: 04,3672 34755 CAF ZERO
058539,000464: 04,3673 54333 TS DNLSTCOD
058540,000465: 04,3674 03743 TC UPACTOFF # TURN OFF 'UPLINK ACTIVITY' LIGHT
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Page 1387 |
058542,000467: 04,3675 00006 EXTEND # KILL GROUP 6.
058543,000468: 04,3676 34755 DCA NEG0
058544,000469: 04,3677 52764 DXCH -PHASE6
058545,000470:
058546,000471: 04,3700 05472 TC ENDEXT # EXTENDED VERB EXIT
058547,000472:
058548,000473: # VERB 70 BRANCH
058549,000474:
058550,000475: 04,3701 00006 UPEND70 EXTEND # V70 DOES THE FOLLOWING WITH DP DELTA
058551,000476: 04,3702 41174 DCS UPBUFF # TIME IN UPBUFF
058552,000477: 04,3703 53204 DXCH UPBUFF +8D
058553,000478: 04,3704 03545 TC TIMEDIDL # DECREMENT AGC CLOCK
058554,000479:
058555,000480: 04,3705 03736 TC UPERROUT # ERROR WHILE DECREMENTING CLOCK -- EXIT
058556,000481:
058557,000482: 04,3706 E3,1706 EBANK= TEPHEM
058558,000483: 04,3706 00006 EXTEND
058559,000484: 04,3707 41174 DCS UPBUFF # COPY DECREMENTERS FOR
058560,000485: 04,3710 53206 DXCH UPBUFF +10D # RESTART PROTECTION
058561,000486: 04,3711 00006 EXTEND
058562,000487: 04,3712 41174 DCS UPBUFF
058563,000488: 04,3713 53210 DXCH UPBUFF +12D
058564,000489:
058565,000490: 04,3714 05353 TC PHASCHNG # RESTART PROTECT (GROUP 6)
058566,000491: 04,3715 04026 OCT 04026
058567,000492:
058568,000493: 04,3716 34755 CAF ZERO
058569,000494: 04,3717 22007 ZL
058570,000495: 04,3720 53206 DXCH UPBUFF +10D # DECREMENT CSM STATE VECTOR TIME
058571,000496: 04,3721 21571 DAS TETCSM
058572,000497:
058573,000498: 04,3722 34755 CAF ZERO
058574,000499: 04,3723 22007 ZL
058575,000500: 04,3724 53210 DXCH UPBUFF +12D # DECREMENT LEM STATE VECTOR TIME
058576,000501: 04,3725 21643 DAS TETLEM
058577,000502:
058578,000503: 04,3726 34755 CAF ZERO
058579,000504: 04,3727 22007 ZL
058580,000505: 04,3730 53174 DXCH UPBUFF
058581,000506: 04,3731 21710 DAS TEPHEM +1 # INCREMENT TP TEPHEM
058582,000507: 04,3732 27706 ADS TEPHEM
058583,000508:
058584,000509: 04,3733 05353 TC PHASCHNG # RESTART PROTECT (GROUP 6)
058585,000510: 04,3734 04026 OCT 04026
058586,000511:
058587,000512: 04,3735 1173 EBANK= UPBUFF
058588,000513:
058589,000514: 04,3735 03667 TC UPOUT # GO TO STANDARD UPDATE PROGRAM EXIT
058590,000515:
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Page 1388 |
058592,000517: # ERROR SEQUENCE
058593,000518:
058594,000519: 04,3736 04364 UPERROUT TC FALTON # TURN ON *OPERATOR ERROR* LIGHT
058595,000520: 04,3737 13667 TCF UPOUT # GO TO COMMON UPDATE PROGRAM EXIT
058596,000521:
058597,000522: 04,3740 04364 +2 TC FALTON # TURN ON 'OPERATOR ERROR' LIGHT
058598,000523: 04,3741 03743 TC UPACTOFF # TURN OFF 'UPLINK ACTIVITY' LIGHT
058599,000524: 04,3742 05472 TC ENDEXT # EXTENDED VERB EXIT
058600,000525: # (THE PURPOSE OF UPERROUT +2 EXIT IS
058601,000526: # TO PROVIDE AN ERROR EXIT WHICH DOES NOT
058602,000527: # RESET ANY RESTART GROUPS)
058603,000528:
058604,000529: # :UPACTOFF: IS A ROUTINE TO TURN OFF UPLINK ACTIVITY LIGHT ON ALL EXITS FROM UPDATE PROGRAM (P27).
058605,000530:
058606,000531: 04,3743 44751 UPACTOFF CS BIT3
058607,000532: 04,3744 00006 EXTEND # TURN OFF UPLINK ACTIVITY LIGHT
058608,000533: 04,3745 03011 WAND DSALMOUT # (BIT 3 OF CHANNEL 11)
058609,000534: 04,3746 00002 TC Q
058610,000535:
End of include-file UPDATE_PROGRAM.agc. Parent file is MAIN.agc