Source Code
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These source-code files are part of a reconstructed copy of Comanche 051, the
original release of the Apollo 11 Command Module (CM) Apollo Guidance Computer
(AGC) software.
The reconstruction began with source code of Comanche 055 previously transcribed
from a digitized copy of that program. The code was then updated by undoing
changes related to the R-2 lunar potential model, using hints from program
comments and change-indicating asterisks in the Comanche 055 listing as a guide.
The reconstruction was verified by matching memory-bank checksums to those listed
in drawing 2021153D. Note that page numbers in the reconstructed code match those
on the Comanche 055 printout, although the added code would likely have changed page
numbers for a real Comanche 051 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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063498,000002: ## Copyright: Public domain.
063499,000003: ## Filename: UPDATE_PROGRAM.agc
063500,000004: ## Purpose: A section of Comanche revision 051.
063501,000005: ## It is part of the reconstructed source code for the
063502,000006: ## original release of the flight software for the Command
063503,000007: ## Module's (CM) Apollo Guidance Computer (AGC) for Apollo 11.
063504,000008: ## The code has been recreated from a copy of Comanche 055. It
063505,000009: ## has been adapted such that the resulting bugger words
063506,000010: ## exactly match those specified for Comanche 51 in NASA drawing
063507,000011: ## 2021153D, which gives relatively high confidence that the
063508,000012: ## reconstruction is correct.
063509,000013: ## Reference: pp. 1497-1507
063510,000014: ## Assembler: yaYUL
063511,000015: ## Contact: Ron Burkey <info@sandroid.org>.
063512,000016: ## Website: www.ibiblio.org/apollo/index.html
063513,000017: ## Mod history: 2019-07-30 MAS Created from Comanche 55.
063514,000018:
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Page 1497
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063516,000020: # PROGRAM NAME: P27
063517,000021: # WRITTEN BY: KILROY/ DE WOLF
063518,000022:
063519,000023: # MOD NO: 6
063520,000024: # MOD BY: KILROY
063521,000025: # DATE: 01DEC67
063522,000026:
063523,000027: # LOG SECTION: UPDATE PROGRAM.
063524,000028:
063525,000029: # FUNCT. DESCR: P27 (THE UPDATE PROGRAM) PROCESSES COMMANDS AND DATA
063526,000030: # INSERTIONS REQUESTED BY THE GROUND VIA UPLINK.
063527,000031: # THE P27 PROGRAM WILL ACCEPT UPDATES
063528,000032: # ONLY DURING P00 FOR THE LM, AND ONLY DURING P00,
063529,000033: # P02, AND FRESH START FOR THE CSM
063530,000034:
063531,000035: # CALLING SEQ: PROGRAM IS INITIATED BY UPLINK ENTRY OF VERBS 70, 71, 72 AND 73.
063532,000036:
063533,000037: # SUBROUTINES: TESTXACT, NEWMODEX, NEWMODEX +3, GOXDSPF, BANKCALL, FINDVAC, INTPRET, INTSTALL, TPAGREE,
063534,000038: # INTWAKEU, ENDEXT, POSTJUMP, FALTON, NEWPHASE, PHASCHNG
063535,000039:
063536,000040: # NORMAL EXIT: TC ENDEXT
063537,000041:
063538,000042: # ALARM/ABORT: TC FALTON FOLLOWED BY TC ENDEXT
063539,000043:
063540,000044: # RESTARTS: P27 IS RESTART PROTECTED IN TWO WAYS ...
063541,000045: # 1. PRIOR TO VERIFLAG INVERSION (WHICH IS CAUSED BY THE GROUND/ASTRONAUT'S VERIFICATION OF UPDATE
063542,000046: # DATA BY SENDING A V33E WHEN V21N02 IS FLASHING)---
063543,000047: # NO PROTECTION EXCEPT PRE-P27 MODE IS RESTORED, COAST + ALIGN DOWNLIST IS SELECTED AND UPLINK
063544,000048: # ACTIVITY LIGHT IS TURNED OFF. (JUST AS IF A V34E WAS SENT DURING P27 DATA LOADS).
063545,000049: # V70,V71,V72 OR V73 WILL HAVE TO BE COMPLETELY RESENT BY USER.
063546,000050: # 2. AFTER VERIFLAG INVERSION (WHEN UPDATE OF THE SPECIFIED ERASABLES IS BEING PERFORMED)---
063547,000051: # PROTECTED AGAINST RESTARTS.
063548,000052:
063549,000053: # DEBRIS: UPBUFF (20D) TEMP STORAGE FOR ADDRESSES AND CONTENTS.
063550,000054: # UPVERB (1) VERB NUMBER MINUS 70D (E.G. FOR V72, UPVERB = 72D - 70D = 2)
063551,000055: # UPOLDMOD(1) FOR MAJOR MODE INTERRUPTED BY P27.
063552,000056: # COMPNUMB(1) TOTAL NUMBER OF COMPONENTS TO BE TRANSMITTED.
063553,000057: # UPCOUNT (1) ACTUAL NUMBER OF COMPONENTS RECEIVED.
063554,000058: # UPTEMP (1) SCRATCH, BUT USUALLY CONTAINS COMPONENT NUMBER TO BE CHANGED DURING VERIFY CYCLE
063555,000059:
063556,000060: # INPUT:
063557,000061:
063558,000062: # ENTRY: DESCRIPTION
063559,000063: # V70EXXXXXEXXXXXE (LIFTOFF TIME INCREMENT) DOUBLE PRECISION OCTAL TIME INCREMENT, XXXXX XXXXX,
063560,000064: # IS ADDED TO TEPHEM, SUBTRACTED FROM AGC CLOCK(TIME2,TIME1), SUBTRACTED FROM CSM STATE
063561,000065: # VECTOR TIME(TETCSM) AND SUBTRACTED FROM LEM STATE VECTOR TIME(TETLEM).
063562,000066: # THE DP OCTAL TIME INCREMENT IS SCALED AT 2(28).
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Page 1498
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063564,000068: # V71EIIEAAAAE (CONTIGUOUS BLOCK UPDATE) II-2 OCTAL COMPONENTS, XXXXX,
063565,000069: # XXXXXE ARE LOADED INTO ERASABLE STARTING AT ECADR, AAAA.
063566,000070: # XXXXXE IT IS .GE. 3 .AND. .LE. 20D.,
063567,000071: # AND (AAAA + II -3) DOES NOT PRODUCE AN ADDRESS IN THE
063568,000072: # 9 NEXT BANK
063569,000073: # . SCALING IS SAME AS INTERNAL REGISTERS.
063570,000074: # V72EIIE (SCATTER UPDATE) (II-1)/2 OCTAL COMPONENTS, XXXXX, ARE
063571,000075: # AAAAEXXXXXE LOADED INTO ERASABLE LOCATIONS, AAAA.
063572,000076: # AAAAEXXXXXE II IS .GE. 3 .AND. .LE. 19D, AND MUST BE ODD.
063573,000077: # . SCALING IS SAME AS INTERNAL REGISTERS.
063574,000078:
063575,000079: # V73EXXXXXEXXXXXE (OCTAL CLOCK INCREMENT) DOUBLE PRECISION OCTAL TIME
063576,000080: # INCREMENT XXXXX XXXXX, IS ADDED TO THE AGC CLOCK, IN
063577,000081: # CENTISECONDS SCALED AT (2)28.
063578,000082: # THIS LOAD IS THE OCTAL EQUIVALENT OF V55.
063579,000083:
063580,000084: # OUTPUT: IN ADDITION TO THE ABOVE REGISTER LOADS, ALL UPDATES
063581,000085: # COMPLEMENT BIT3 OF FLAGWORD7.
063582,000086:
063583,000087: # ADDITIONAL NOTES: VERB 71, JUST DEFINED ABOVE WILL BE USED TO PERFORM BUT NOT LIMITED TO THE FOLLOWING UPDATES --
063584,000088: # 1. CSM/LM STATE VECTOR UPDATE
063585,000089: # 2. REFSMMAT UPDATE
063586,000090:
063587,000091: # THE FOLLOWING COMMENTS DELINEATE EACH SPECIAL UPDATE ----
063588,000092:
063589,000093: # 1. CSM/LM STATE VECTOR UPDATE (ALL DATA ENTRIES IN OCTAL)
063590,000094: # ENTRIES: DATA DEFINITION: SCALE FACTORS:
063591,000095: # V71E CONTIGUOUS BLOCK UPDATE VERB
063592,000096: # 21E NUMBER OF COMPONENTS FOR STATE VECTOR UPDATE
063593,000097: # AAAAE ECADR OF 'UPSVFLAG'
063594,000098: # XXXXXE STATE VECTOR IDENTIFIER: 00001 FOR CSM, 77776 FOR LEM - EARTH SPHERE OF INFLUENCE SCALING
063595,000099: # 00002 FOR CSM, 77775 FOR LEM - LUNAR SPHERE OF INFLUENCE SCALING
063596,000100: # XXXXXEXXXXXE X POSITION
063597,000101: # XXXXXEXXXXXE Y POSITION
063598,000102: # XXXXXEXXXXXE Z POSITION
063599,000103: # XXXXXEXXXXXE X VELOCITY
063600,000104: # XXXXXEXXXXXE Y VELOCITY
063601,000105: # XXXXXEXXXXXE Z VELOCITY
063602,000106: # XXXXXEXXXXXE TIME FROM AGC CLOCK ZERO
063603,000107: # V33E VERB 33 TO SIGNAL THAT THE STATE VECTOR IS READY TO BE STORED.
063604,000108:
063605,000109: # 2. REFSMMAT (ALL DATA ENTRIES IN OCTAL)
063606,000110: # ENTRIES: DATA DEFINITIONS: SCALE FACTORS:
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Page 1499
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063608,000112: # V71E CONTIGUOUS BLOCK UPDATE VERB
063609,000113: # 24E NUMBER OF COMPONENTS FOR REFSMMAT UPDATE
063610,000114: # AAAAE ECADR OF 'REFSMMAT'
063611,000115: # XXXXXEXXXXXE ROW 1 COLUMN 1 2(-1)
063612,000116: # XXXXXEXXXXXE ROW 1 COLUMN 2 2(-1)
063613,000117: # XXXXXEXXXXXE ROW 1 COLUMN 3 2(-1)
063614,000118: # XXXXXEXXXXXE ROW 2 COLUMN 1 2(-1)
063615,000119: # XXXXXEXXXXXE ROW 2 COLUMN 2 2(-1)
063616,000120: # XXXXXEXXXXXE ROW 2 COLUMN 3 2(-1)
063617,000121: # XXXXXEXXXXXE ROW 3 COLUMN 1 2(-1)
063618,000122: # XXXXXEXXXXXE ROW 3 COLUMN 2 2(-1)
063619,000123: # XXXXXEXXXXXE ROW 3 COLUMN 3 2(-1)
063620,000124: # V33E VERB 33 TO SIGNAL THAT REFSMMAT IS READY TO BE STORED.
063621,000125:
063622,000126: 07,3777 BANK 07
063623,000127: 43,2000 SETLOC EXTVERBS
063624,000128: 43,2000 BANK
063625,000129:
063626,000130: 43,3726 E3,1706 EBANK= TEPHEM
063627,000131:
063628,000132: 43,3726 COUNT* $$/P27
063629,000133: 43,3726 35021 V70UPDAT CAF UP70 # COMES HERE ON V70E
063630,000134: 43,3727 13735 TCF V73UPDAT +1
063631,000135:
063632,000136: 43,3730 35017 V71UPDAT CAF UP71 # COMES HERE ON V71E
063633,000137: 43,3731 13735 TCF V73UPDAT +1
063634,000138:
063635,000139: 43,3732 35016 V72UPDAT CAF UP72 # COMES HERE ON V72E
063636,000140: 43,3733 13735 TCF V73UPDAT +1
063637,000141:
063638,000142: 43,3734 36214 V73UPDAT CAF UP73 # COMES HERE ON V73E
063639,000143:
063640,000144: 43,3735 54331 +1 TS UPVERBSV # SAVE UPVERB UNTIL IT'S OK TO ENTER P27
063641,000145:
063642,000146: 43,3736 02076 TC TESTXACT # GRAB DISPLAY IF AVAILABLE, OTHERWISE
063643,000147: # TURN *OPERATOR ERROR* ON AND TERMINATE JOB
063644,000148:
063645,000149: 43,3737 31011 CA MODREG # CHECK IF UPDATE ALLOWED
063646,000150: 43,3740 00006 EXTEND # FIRST CHECK FOR MODREG = +0, -0
063647,000151: 43,3741 13743 BZF +2 # (+0 = P00, -0 = FRESHSTART)
063648,000152: 43,3742 03753 TC CKMDMORE # NOW CHECK FOR PROGRAM WHICH CAN BE
063649,000153: # INTERRUPTED BY P27.
063650,000154:
063651,000155: 43,3743 31011 CAE MODREG # UPDATE ALLOWED.
063652,000156: 43,3744 54301 TS UPOLDMOD # SAVE CURRENT MAJOR MODE
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Page 1500
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063654,000158: 43,3745 30331 CAE UPVERBSV # SET UPVERB TO INDICATE TO P27
063655,000159: 43,3746 54302 TS UPVERB # WHICH EXTENDED VERB CALLED IT.
063656,000160:
063657,000161: 43,3747 35017 CAF ONE
063658,000162: 43,3750 54303 TS UPCOUNT # INITIALIZE UPCOUNT TO 1
063659,000163:
063660,000164: 43,3751 04701 TC POSTJUMP # LEAVE EXTENDED VERB BANK AND
063661,000165: 43,3752 57373 CADR UPPART2 # GO TO UPDATE PROGRAM (P27) BANK.
063662,000166:
063663,000167: 43,3753 40101 CKMDMORE CS FLAGWRD5
063664,000168: 43,3754 75010 MASK BIT8 # CHECK IF COMPUTER IS LGC
063665,000169: 43,3755 10000 CCS A # IS COMPUTER LGC OR AGC
063666,000170: 43,3756 13764 UPERLEM TCF UPERROR # ERROR- IT'S THE LEM + MODE IS NOT POO.
063667,000171: 43,3757 45016 CS TWO
063668,000172: 43,3760 71011 MASK MODREG
063669,000173: 43,3761 10000 CCS A
063670,000174: 43,3762 13764 UPERCMC TCF UPERROR # ERROR- IT'S THE CMC AND MODE IS NOT
063671,000175: # P00 OR P02.
063672,000176: 43,3763 00002 TC Q # ALLOW UPDATE TO PROCEED
063673,000177:
063674,000178: 43,3764 04701 UPERROR TC POSTJUMP # TURN ON 'OPERATOR ERROR' LIGHT
063675,000179: 43,3765 57754 CADR UPERROUT +2 # GO TO COMMON UPDATE PROGRAM EXIT
063676,000180:
063677,000181: 43,3766 30,2000 SBANK= LOWSUPER
063678,000182: 43,3766 5021 UP70 EQUALS ZERO
063679,000183: 43,3766 5017 UP71 EQUALS ONE
063680,000184: 43,3766 5016 UP72 EQUALS TWO
063681,000185: 43,3766 6214 UP73 EQUALS THREE
063682,000186:
063683,000187: 04,3757 BANK 04
063684,000188: 27,2000 SETLOC UPDATE2
063685,000189: 27,2000 BANK
063686,000190:
063687,000191: 27,3373 COUNT* $$/P27
063688,000192:
063689,000193: 27,3373 UPPART2 EQUALS # UPDATE PROGRAM - PART 2
063690,000194:
063691,000195: 27,3373 05412 TC PHASCHNG # SET RESTART GROUP 6 TO RESTORE OLD MODE
063692,000196: 27,3374 07026 OCT 07026 # AND DOWNLIST AND EXIT IF RESTART OCCURS.
063693,000197: 27,3375 30000 OCT 30000 # PRIORITY SAME AS CHRPRIO
063694,000198: 27,3376 0304 EBANK= UPBUFF
063695,000199: 27,3376 03704 56060 2CADR UPOUT +1
063696,000200:
063697,000201: 27,3400 35017 CAF ONE
063698,000202: 27,3401 54332 TS DNLSTCOD # DOWNLIST
063699,000203:
063700,000204: 27,3402 05354 TC NEWMODEX # SET MAJOR MODE = 27
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Page 1501
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063702,000206: 27,3403 00033 DEC 27 B-14
063703,000207:
063704,000208: 27,3404 50302 INDEX UPVERB # BRANCH DEPENDING ON WHETHER THE UPDATE
063705,000209: 27,3405 13406 TCF +1 # VERB REQUIRES A FIXED OR VARIABLE NUMBER
063706,000210: 27,3406 13411 TCF +3 # V70 FIXED. (OF COMPONENTS.
063707,000211: 27,3407 13414 TCF OHWELL1 # V71 VARIABLE - GO GET NO. OF COMPONENTS
063708,000212: 27,3410 13414 TCF OHWELL1 # V72 VARIABLE - GO GET NO. OF COMPONENTS
063709,000213: 27,3411 35016 CA TWO # V73 (AND V70) FIXED
063710,000214: 27,3412 54300 TS COMPNUMB # SET NUMBER OF COMPONENTS TO 2.
063711,000215: 27,3413 13437 TCF OHWELL2 # GO GET THE TWO UPDATE COMPONENTS
063712,000216:
063713,000217: 27,3414 33507 OHWELL1 CAF ADUPBUFF # * REQUEST USER TO SEND NUMBER *
063714,000218: 27,3415 54156 TS MPAC +2 # * OF COMPONENTS PARAMETER(II). *
063715,000219: 27,3416 33510 +2 CAF UPLOADNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
063716,000220: 27,3417 04662 TC BANKCALL # DISPLAY A FLASHING V21N01
063717,000221: 27,3420 20561 CADR GOXDSPF # TO REQUEST II.
063718,000222: 27,3421 13704 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN
063719,000223: 27,3422 13416 TCF OHWELL1 +2
063720,000224: 27,3423 03500 TC CK4V32 # DATA OR V32 RETURN
063721,000225: 27,3424 45016 CS BIT2
063722,000226: 27,3425 60304 AD UPBUFF # IS II (NUMBER OF COMPONENTS PARAMETER)
063723,000227: 27,3426 00006 EXTEND # .GE. 3 AND .LE. 20D.
063724,000228: 27,3427 63416 BZMF OHWELL1 +2
063725,000229: 27,3430 40304 CS UPBUFF
063726,000230: 27,3431 64376 AD UP21
063727,000231: 27,3432 00006 EXTEND
063728,000232: 27,3433 63416 BZMF OHWELL1 +2
063729,000233: 27,3434 30304 CAE UPBUFF
063730,000234: 27,3435 54300 TS COMPNUMB # SAVE II IN COMPNUMB
063731,000235:
063732,000236: # UPBUFF LOADING SEQUENCE
063733,000237:
063734,000238: 27,3436 24303 INCR UPCOUNT # INCREMENT COUNT OF COMPONENTS RECEIVED.
063735,000239: 27,3437 33654 OHWELL2 CAF ADUPBFM1 # CALCULATE LOCATION (ECADR) IN UPBUFF
063736,000240: 27,3440 60303 AD UPCOUNT # WHERE NEXT COMPONENT SHOULD BE STORED.
063737,000241: 27,3441 54156 +2 TS MPAC +2 # PLACE ECADR INTO R3.
063738,000242: 27,3442 33510 +3 CAF UPLOADNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
063739,000243: 27,3443 04662 TC BANKCALL # DISPLAY A FLASHING V21N01
063740,000244: 27,3444 20561 CADR GOXDSPF # TO REQUEST DATA.
063741,000245: 27,3445 13704 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN.
063742,000246: 27,3446 13442 TCF OHWELL2 +3 # V33 PROCEED RETURN
063743,000247: 27,3447 03500 TC CK4V32 # DATA OR V32 RETURN
063744,000248: 27,3450 40303 CS UPCOUNT # HAVE WE FINISHED RECEIVING ALL
063745,000249: 27,3451 60300 AD COMPNUMB # THE DATA WE EXPECTED.
063746,000250: 27,3452 00006 EXTEND
063747,000251: 27,3453 63455 BZMF UPVERIFY # YES- GO TO VERIFICATION SEQUENCE
063748,000252: 27,3454 13436 TCF OHWELL2 -1 # NO- REQUEST ADDITIONAL DATA.
063749,000253:
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Page 1502
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063751,000255: # VERIFY SEQUENCE
063752,000256: 27,3455 33506 UPVERIFY CAF ADUPTEMP # PLACE ECADR WHERE COMPONENT NO. INDEX
063753,000257: 27,3456 54156 TS MPAC +2 # IS TO BE STORED INTO R3.
063754,000258: 27,3457 33511 CAF UPVRFYNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
063755,000259: 27,3460 04662 TC BANKCALL # DISPLAY A FLASHING V21N02 TO REQUEST
063756,000260: 27,3461 20561 CADR GOXDSPF # DATA CORRECTION OR VERIFICATION.
063757,000261: 27,3462 13704 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN
063758,000262: 27,3463 13512 TCF UPSTORE # V33 DATA SENT IS GOOD. GO STORE IT.
063759,000263: 27,3464 03500 TC CK4V32 # COMPONENT NO. INDEX OR V32 RETURN
063760,000264: 27,3465 30330 CA UPTEMP # DOES THE COMPONENT NO. INDEX JUST SENT
063761,000265: 27,3466 00006 EXTEND # SPECIFY A LEGAL COMPONENT NUMBER?
063762,000266: 27,3467 63455 BZMF UPVERIFY # NO, IT IS NOT POSITIVE NONZERO
063763,000267: 27,3470 40330 CS UPTEMP
063764,000268: 27,3471 60300 AD COMPNUMB
063765,000269: 27,3472 65017 AD BIT1
063766,000270: 27,3473 00006 EXTEND
063767,000271: 27,3474 63455 BZMF UPVERIFY # NO
063768,000272: 27,3475 33654 CAF ADUPBFM1 # YES- BASED ON THE COMPONENT NO. INDEX
063769,000273: 27,3476 60330 AD UPTEMP # CALCULATE THE ECADR OF LOCATION IN
063770,000274: 27,3477 13441 TCF OHWELL2 +2 # UPBUFF WHICH USER WANTS TO CHANGE.
063771,000275:
063772,000276: 27,3500 27,3704 UPOUT4 EQUALS UPOUT +1 # COMES HERE ON V34 TO TERMINATE UPDATE
063773,000277:
063774,000278: # CHECK FOR VERB 32 SEQUENCE
063775,000279:
063776,000280: 27,3500 40154 CK4V32 CS MPAC # ON DATA RETURN FROM 'GOXDSPF'
063777,000281: 27,3501 75012 MASK BIT6 # ON DATA RETURN FROM "GOXDSP"& THE CON-
063778,000282: 27,3502 10000 CCS A # TENTS OF MPAC = VERB. SO TEST FOR V32.
063779,000283: 27,3503 00002 TC Q # IT'S NOT A V32, IT'S DATA. PROCEED.
063780,000284: 27,3504 50002 INDEX Q
063781,000285: 27,3505 77771 TC 0 -6 # V32 ENCOUNTERED - GO BACK AND GET DATA
063782,000286:
063783,000287: 27,3506 00330 ADUPTEMP ADRES UPTEMP # ADDRESS OF TEMP STORAGE FOR CORRECTIONS
063784,000288: 27,3507 00304 ADUPBUFF ADRES UPBUFF # ADDRESS OF UPDATE DATA STORAGE BUFFER
063785,000289: 27,3510 05201 UPLOADNV VN 2101 # VERB 21 NOUN 01
063786,000290: 27,3511 05202 UPVRFYNV VN 2102 # VERB 21 NOUN 02
063787,000291: 27,3512 4376 UP21 = MD1 # DEC 21 = MAX NO OF COMPONENTS +1
063788,000292: 27,3512 5022 UPDTPHAS EQUALS FIVE
063789,000293:
063790,000294: # PRE-STORE AND FAN TO APPROPRIATE BRANCH SEQUENCE
063791,000295:
063792,000296: 27,3512 UPSTORE EQUALS # GROUND HAS VERIFIED UPDATE. STORE DATA.
063793,000297:
063794,000298: 27,3512 00004 INHINT
063795,000299:
063796,000300: 27,3513 30103 CAE FLAGWRD7 # INVERT VERIFLAG (BIT 3 OF FLAGWRD7) TO
063797,000301: 27,3514 56001 XCH L # INDICATE TO THE GROUND (VIA DOWNLINK)
063798,000302: 27,3515 35015 CAF BIT3 # THAT THE V33 (WHICH THE GROUND SENT TO
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Page 1503
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063800,000304: 27,3516 00006 EXTEND # VERIFY THE UPDATE) HAS BEEN SUCCESSFULLY
063801,000305: 27,3517 06001 RXOR LCHAN # RECEIVED BY THE UPDATE PROGRAM
063802,000306: 27,3520 54103 TS FLAGWRD7
063803,000307:
063804,000308: 27,3521 05412 TC PHASCHNG # SET RESTART GROUP 6 TO REDO THE UPDATE
063805,000309: 27,3522 04026 OCT 04026 # DATA STORE IF A RESTART OCCURS.
063806,000310: 27,3523 00004 INHINT # (BECAUSE PHASCHNG DID A RELINT)
063807,000311:
063808,000312: 27,3524 45016 CS TWO # GO TO UPFNDVAC IF INSTALL IS REQUIRED,
063809,000313: 27,3525 60302 AD UPVERB # THAT IS, IF IT'S A V70 - V72.
063810,000314: 27,3526 00006 EXTEND # GO TO UPEND73 IF IT'S A V73.
063811,000315: 27,3527 63536 BZMF UPFNDVAC
063812,000316:
063813,000317: # VERB 73 BRANCH
063814,000318:
063815,000319: 27,3530 00006 UPEND73 EXTEND # V73-PERFORM DP OCTAL AGC CLOCK INCREMENT
063816,000320: 27,3531 30305 DCA UPBUFF
063817,000321: 27,3532 52315 DXCH UPBUFF +8D
063818,000322: 27,3533 03561 TC TIMEDIDL
063819,000323: 27,3534 04400 TC FALTON # ERROR- TURN ON *OPERATOR ERROR* LIGHT
063820,000324: 27,3535 03704 TC UPOUT +1 # GO TO COMMON UPDATE PROGRAM EXIT
063821,000325:
063822,000326: 27,3536 34371 UPFNDVAC CAF CHRPRIO # (USE EXTENDED VERB PRIORITY)
063823,000327: 27,3537 05147 TC FINDVAC # GET VAC AREA FOR 'CALL INTSTALL'
063824,000328: 27,3540 E3,1706 EBANK= TEPHEM
063825,000329: 27,3540 03543 56063 2CADR UPJOB # (NOTE: THIS WILL ALSO SET EBANK FOR
063826,000330: 27,3542 05217 TC ENDOFJOB # 'TEPHEM' UPDATE BY V70)
063827,000331:
063828,000332: 27,3543 06006 UPJOB TC INTPRET # THIS COULD BE A STATE VECTOR UPDATE -- SO
063829,000333: 27,3544 77624 CALL # WAIT (PUT JOB TO SLEEP) IF ORBIT INT(OI)
063830,000334: 27,3545 27442 INTSTALL # IS IN PROGRESS -- OR -- GRAB OI AND RETURN
063831,000335: # TO UPWAKE IF OI IS NOT IN PROGRESS.
063832,000336:
063833,000337: 27,3546 77776 UPWAKE EXIT
063834,000338:
063835,000339: 27,3547 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063836,000340: 27,3550 04026 OCT 04026
063837,000341:
063838,000342: 27,3551 05546 TC UPFLAG # SET INTEGRATION RESTART BIT
063839,000343: 27,3552 00236 ADRES REINTFLG
063840,000344: 27,3553 00004 INHINT
063841,000345: 27,3554 UPPART3 EQUALS
063842,000346:
063843,000347: 27,3554 50302 INDEX UPVERB # BRANCH TO THE APPROPRIATE UPDATE VERB
063844,000348: 27,3555 13556 TCF +1 # ROUTINE TO ACTUALLY PERFORM THE UPDATE
063845,000349: 27,3556 13715 TCF UPEND70 # V70
063846,000350: 27,3557 13624 TCF UPEND71 # V71
063847,000351: 27,3560 13656 TCF UPEND72 # V72
063848,000352:
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Page 1504
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063850,000354: # ROUTINE TO INCREMENT CLOCK (TIME2,TIME1) WITH CONTENTS OF DP WORD AT UPBUFF.
063851,000355: 27,3561 00006 TIMEDIDL EXTEND
063852,000356: 27,3562 22330 QXCH UPTEMP # SAVE Q FOR RETURN
063853,000357: 27,3563 35021 CAF ZERO # ZERO AND SAVE TIME2,TIME1
063854,000358: 27,3564 22007 ZL
063855,000359: 27,3565 52025 DXCH TIME2
063856,000360: 27,3566 52327 DXCH UPBUFF +18D # STORE IN CASE OF OVERFLOW
063857,000361:
063858,000362: 27,3567 35022 CAF UPDTPHAS # DO
063859,000363: 27,3570 54001 TS L # A
063860,000364: 27,3571 40000 COM # QUICK
063861,000365: 27,3572 52765 DXCH -PHASE6 # PHASCHNG
063862,000366:
063863,000367: 27,3573 00004 TIMEDIDR INHINT
063864,000368: 27,3574 35021 CAF ZERO
063865,000369: 27,3575 22007 ZL # PICK UP INCREMENTER(AND ZERO
063866,000370: 27,3576 54156 TS MPAC +2 # IT IN CASE OF RESTARTS) AND
063867,000371: 27,3577 52315 DXCH UPBUFF +8D # STORE IT
063868,000372: 27,3600 52155 DXCH MPAC # INTO MPAC FOR TPAGREE.
063869,000373:
063870,000374: 27,3601 00006 EXTEND
063871,000375: 27,3602 30327 DCA UPBUFF +18D
063872,000376: 27,3603 20155 DAS MPAC # FORM SUM IN MPAC
063873,000377: 27,3604 00006 EXTEND
063874,000378: 27,3605 13614 BZF DELTAOK # TEST FOR OVERFLOW
063875,000379: 27,3606 35021 CAF ZERO
063876,000380: 27,3607 52327 DXCH UPBUFF +18D # OVERFLOW, RESTORE OLD VALUE OF CLOCK
063877,000381: 27,3610 20025 DAS TIME2 # AND TURN ON OPERATOR ERROR
063878,000382:
063879,000383: 27,3611 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063880,000384: 27,3612 04026 OCT 04026
063881,000385:
063882,000386: 27,3613 00330 TC UPTEMP # GO TO ERROR EXIT
063883,000387:
063884,000388: 27,3614 07226 DELTAOK TC TPAGREE # FORCE SIGN AGREEMENT
063885,000389: 27,3615 52155 DXCH MPAC
063886,000390: 27,3616 20025 DAS TIME2 # INCREMENT TIME2,TIME1
063887,000391:
063888,000392: 27,3617 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063889,000393: 27,3620 04026 OCT 04026
063890,000394:
063891,000395: 27,3621 00004 INHINT
063892,000396: 27,3622 50330 INDEX UPTEMP # (CODED THIS WAY FOR RESTART PROTECTION)
063893,000397: 27,3623 00001 TC 1 # NORMAL RETURN
063894,000398:
063895,000399: # VERB 71 BRANCH
063896,000400:
063897,000401: 27,3624 30305 UPEND71 CAE UPBUFF +1 # SET EBANK
063898,000402: 27,3625 54003 TS EBANK # AND
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063900,000404: 27,3626 74373 MASK LOW8 # CALCULATE
063901,000405: 27,3627 54330 TS UPTEMP # S-REG VALUE OF RECEIVING AREA
063902,000406: 27,3630 67714 AD NEG3 # IN THE PROCESS OF
063903,000407: 27,3631 60300 AD COMPNUMB # PERFORMING
063904,000408: 27,3632 00006 EXTEND # THIS UPDATE
063905,000409: 27,3633 13641 BZF STORLP71 # WILL WE
063906,000410: 27,3634 75007 MASK BIT9 # OVERFLOW
063907,000411: 27,3635 10000 CCS A # INTO THE NEXT EBANK....
063908,000412: 27,3636 13752 TCF UPERROUT # YES
063909,000413:
063910,000414: 27,3637 37714 CA NEG3 # NO- CALCULATE NUMBER OF
063911,000415: 27,3640 60300 AD COMPNUMB # WORDS TO BE STORED MINUS ONE
063912,000416: 27,3641 54154 STORLP71 TS MPAC # SAVE NO. OF WORDS REMAINING MINUS ONE
063913,000417: 27,3642 50000 INDEX A # TAKE NEXT UPDATE WORD FROM
063914,000418: 27,3643 30306 CA UPBUFF +2 # UPBUFF AND
063915,000419: 27,3644 54001 TS L # SAVE IT IN L
063916,000420: 27,3645 30154 CA MPAC # CALCULATE NEXT
063917,000421: 27,3646 60330 AD UPTEMP # RECEIVING ADDRESS
063918,000422: 27,3647 50000 INDEX A
063919,000423: 27,3650 E3,1400 EBANK= 1400
063920,000424: 27,3650 23400 LXCH 1400 # UPDATE THE REGISTER BY CONTENTS OF L
063921,000425: 27,3651 E3,1706 EBANK= TEPHEM
063922,000426: 27,3651 10154 CCS MPAC # ARE THERE ANY WORDS LEFT TO BE STORED
063923,000427: 27,3652 13641 TCF STORLP71 # YES
063924,000428: 27,3653 13703 TCF UPOUT # NO- THEN EXIT UPDATE PROGRAM
063925,000429: 27,3654 00303 ADUPBFM1 ADRES UPBUFF -1 # SAME AS ADUPBUFF BUT LESS 1 (DON'T MOVE)
063926,000430: 27,3655 13703 TCF UPOUT # NO- EXIT UPDATE (HERE WHEN COMPNUMB = 3)
063927,000431:
063928,000432: # VERB 72 BRANCH
063929,000433:
063930,000434: 27,3656 35017 UPEND72 CAF BIT1 # HAVE AN ODD NO. OF COMPONENTS
063931,000435: 27,3657 70300 MASK COMPNUMB # BEEN SENT FOR A V72 UPDATE ...
063932,000436: 27,3660 10000 CCS A
063933,000437: 27,3661 13663 TCF +2 # YES
063934,000438: 27,3662 13752 TCF UPERROUT # ERROR- SHOULD BE ODD NO. OF COMPONENTS
063935,000439: 27,3663 45016 CS BIT2
063936,000440: 27,3664 60300 AD COMPNUMB
063937,000441: 27,3665 54154 LDLOOP72 TS MPAC # NOW PERFORM THE UPDATE
063938,000442: 27,3666 50000 INDEX A
063939,000443: 27,3667 30305 CAE UPBUFF +1 # PICK UP NEXT UPDATE WORD
063940,000444: 27,3670 22000 LXCH A
063941,000445: 27,3671 10154 CCS MPAC # SET POINTER TO ECADR (MUST BE CCS)
063942,000446: 27,3672 54154 TS MPAC
063943,000447: 27,3673 50000 INDEX A
063944,000448: 27,3674 30305 CAE UPBUFF +1 # PICK UP NEXT ECADR OF REG TO BE UPDATED
063945,000449: 27,3675 54003 TS EBANK # SET EBANK
063946,000450: 27,3676 74373 MASK LOW8 # ISOLATE RELATIVE ADDRESS
063947,000451: 27,3677 50000 INDEX A
063948,000452:
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Page 1506
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063950,000454: 27,3700 E3,1400 EBANK= 1400
063951,000455: 27,3700 23400 LXCH 1400 # UPDATE THE REGISTER BY CONTENTS OF L
063952,000456: 27,3701 E3,1706 EBANK= TEPHEM
063953,000457: 27,3701 10154 CCS MPAC # ARE WE THROUGH THE V72 UPDATE...
063954,000458: 27,3702 13665 TCF LDLOOP72 # NO
063955,000459:
063956,000460: # NORMAL FINISH OF P27
063957,000461:
063958,000462: 27,3703 UPOUT EQUALS
063959,000463: 27,3703 02671 TC INTWAKEU # RELEASE GRAB OF ORBITAL INTEGRATION
063960,000464: 27,3704 30301 +1 CAE UPOLDMOD # RESTORE PRIOR P27 MODE
063961,000465: 27,3705 05357 TC NEWMODEX +3
063962,000466: 27,3706 35021 CAF ZERO
063963,000467: 27,3707 54332 TS DNLSTCOD
063964,000468: 27,3710 03757 TC UPACTOFF # TURN OFF 'UPLINK ACTIVITY' LIGHT
063965,000469: 27,3711 00006 EXTEND # KILL GROUP 6.
063966,000470: 27,3712 35021 DCA NEG0
063967,000471: 27,3713 52765 DXCH -PHASE6
063968,000472:
063969,000473: 27,3714 05534 TC ENDEXT # EXTENDED VERB EXIT
063970,000474:
063971,000475: # VERB 70 BRANCH
063972,000476:
063973,000477: 27,3715 00006 UPEND70 EXTEND # V70 DOES THE FOLLOWING WITH DP DELTA
063974,000478: 27,3716 40305 DCS UPBUFF # TIME IN UPBUFF
063975,000479: 27,3717 52315 DXCH UPBUFF +8D
063976,000480: 27,3720 03561 TC TIMEDIDL # DECREMENT AGC CLOCK
063977,000481:
063978,000482: 27,3721 03752 TC UPERROUT # ERROR WHILE DECREMENTING CLOCK -- EXIT
063979,000483:
063980,000484: 27,3722 E3,1706 EBANK= TEPHEM
063981,000485: 27,3722 00006 EXTEND
063982,000486: 27,3723 40305 DCS UPBUFF # COPY DECREMENTERS FOR
063983,000487: 27,3724 52317 DXCH UPBUFF +10D # RESTART PROTECTION
063984,000488: 27,3725 00006 EXTEND
063985,000489: 27,3726 40305 DCS UPBUFF
063986,000490: 27,3727 52321 DXCH UPBUFF +12D
063987,000491:
063988,000492: 27,3730 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063989,000493: 27,3731 04026 OCT 04026
063990,000494:
063991,000495: 27,3732 35021 CAF ZERO
063992,000496: 27,3733 22007 ZL
063993,000497: 27,3734 52317 DXCH UPBUFF +10D # DECREMENT CSM STATE VECTOR TIME
063994,000498: 27,3735 21571 DAS TETCSM
063995,000499:
063996,000500: 27,3736 35021 CAF ZERO
063997,000501:
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Page 1507
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063999,000503: 27,3737 22007 ZL
064000,000504: 27,3740 52321 DXCH UPBUFF +12D # DECREMENT LEM STATE VECTOR TIME
064001,000505: 27,3741 21643 DAS TETLEM
064002,000506: 27,3742 35021 CAF ZERO
064003,000507: 27,3743 22007 ZL
064004,000508: 27,3744 52305 DXCH UPBUFF
064005,000509: 27,3745 21710 DAS TEPHEM +1 # INCREMENT TP TEPHEM
064006,000510: 27,3746 27706 ADS TEPHEM
064007,000511:
064008,000512: 27,3747 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
064009,000513: 27,3750 04026 OCT 04026
064010,000514:
064011,000515: 27,3751 0304 EBANK= UPBUFF
064012,000516:
064013,000517: 27,3751 03703 TC UPOUT # GO TO STANDARD UPDATE PROGRAM EXIT
064014,000518:
064015,000519: # ERROR SEQUENCE
064016,000520:
064017,000521: 27,3752 04400 UPERROUT TC FALTON # TURN ON *OPERATOR ERROR* LIGHT
064018,000522: 27,3753 13703 TCF UPOUT # GO TO COMMON UPDATE PROGRAM EXIT
064019,000523:
064020,000524: 27,3754 04400 +2 TC FALTON # TURN ON 'OPERATOR ERROR' LIGHT
064021,000525: 27,3755 03757 TC UPACTOFF # TURN OFF 'UPLINK ACTIVITY' LIGHT
064022,000526: 27,3756 05534 TC ENDEXT # EXTENDED VERB EXIT
064023,000527: # (THE PURPOSE OF UPERROUT +2 EXIT IS
064024,000528: # TO PROVIDE AN ERROR EXIT WHICH DOES NOT
064025,000529: # RESET ANY RESTART GROUPS)
064026,000530:
064027,000531: # :UPACTOFF: IS A ROUTINE TO TURN OFF UPLINK ACTIVITY LIGHT ON ALL EXITS FROM UPDATE PROGRAM (P27).
064028,000532:
064029,000533: 27,3757 45015 UPACTOFF CS BIT3
064030,000534: 27,3760 00006 EXTEND # TURN OFF UPLINK ACTIVITY LIGHT
064031,000535: 27,3761 03011 WAND DSALMOUT # (BIT 3 OF CHANNEL 11)
064032,000536: 27,3762 00002 TC Q
End of include-file UPDATE_PROGRAM.agc. Parent file is MAIN.agc