Source Code
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These source-code files are part of a reconstructed copy of Comanche 51, the
initial release (though not the final mission release) of the Apollo 11
Command Module (CM) Apollo Guidance Computer (AGC) software. The flown, final
release was Comanche 55. The reconstruction is believed to be exactly accurate,
but in the absence of an actual Apollo-era listing of Comanche 51, some
explanation of the reconstruction process is needed to insure confidence in
that accuracy.
The starting point was the source code of Comanche 55, whose original source code
is available. Comanche 55 source code was then modified by undoing changes known
to have been made between revisions 51 and 55. The most-significant steps involved
reverting changes related to the R-2 lunar potential model, the details of which
were known from the previous, separate, independent reconstruction of the Apollo 10
Lunar Module software Luminary 69/2. The now-reconstructed
Comanche 51 source code was verified by assembling it and checking that the assembled
code had the expected known-correct memory-bank checksums. Note that page numbers in
the reconstructed code match those on the Comanche 55 or Luminary 69 printouts, although
the source code would likely have different page numbers in a contemporary Comanche 51 listing.
Annotations that were not present in the contemporary source code have been added to
the reconstructed code to justify each change relative to Comanche 55. Here's a guide
to some of the Apollo documentation relevant to those annotations:
Among documentation not actually referenced in the annotations, there is
a short writeup about the reconstruction process in our software repository
that may be helpful in understanding it from a different perspective. There's also
a handy table
that lists what the number of memory-words should be for each routine in Comanche 51,
which could make a nice double-check; however, we've not performed that double-check ourselves.
Comments expected to have been present in 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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063603,000002: ## Copyright: Public domain.
063604,000003: ## Filename: UPDATE_PROGRAM.agc
063605,000004: ## Purpose: A section of Comanche revision 051.
063606,000005: ## It is part of the reconstructed source code for the
063607,000006: ## original release of the flight software for the Command
063608,000007: ## Module's (CM) Apollo Guidance Computer (AGC) for Apollo 11.
063609,000008: ## The code has been recreated from a copy of Comanche 055. It
063610,000009: ## has been adapted such that the resulting bugger words
063611,000010: ## exactly match those specified for Comanche 51 in NASA drawing
063612,000011: ## 2021153D, which gives relatively high confidence that the
063613,000012: ## reconstruction is correct.
063614,000013: ## Reference: pp. 1497-1507
063615,000014: ## Assembler: yaYUL
063616,000015: ## Contact: Ron Burkey <info@sandroid.org>.
063617,000016: ## Website: www.ibiblio.org/apollo/index.html
063618,000017: ## Mod history: 2019-07-30 MAS Created from Comanche 55.
063619,000018:
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Page 1497
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063621,000020: # PROGRAM NAME: P27
063622,000021: # WRITTEN BY: KILROY/ DE WOLF
063623,000022:
063624,000023: # MOD NO: 6
063625,000024: # MOD BY: KILROY
063626,000025: # DATE: 01DEC67
063627,000026:
063628,000027: # LOG SECTION: UPDATE PROGRAM.
063629,000028:
063630,000029: # FUNCT. DESCR: P27 (THE UPDATE PROGRAM) PROCESSES COMMANDS AND DATA
063631,000030: # INSERTIONS REQUESTED BY THE GROUND VIA UPLINK.
063632,000031: # THE P27 PROGRAM WILL ACCEPT UPDATES
063633,000032: # ONLY DURING P00 FOR THE LM, AND ONLY DURING P00,
063634,000033: # P02, AND FRESH START FOR THE CSM
063635,000034:
063636,000035: # CALLING SEQ: PROGRAM IS INITIATED BY UPLINK ENTRY OF VERBS 70, 71, 72 AND 73.
063637,000036:
063638,000037: # SUBROUTINES: TESTXACT, NEWMODEX, NEWMODEX +3, GOXDSPF, BANKCALL, FINDVAC, INTPRET, INTSTALL, TPAGREE,
063639,000038: # INTWAKEU, ENDEXT, POSTJUMP, FALTON, NEWPHASE, PHASCHNG
063640,000039:
063641,000040: # NORMAL EXIT: TC ENDEXT
063642,000041:
063643,000042: # ALARM/ABORT: TC FALTON FOLLOWED BY TC ENDEXT
063644,000043:
063645,000044: # RESTARTS: P27 IS RESTART PROTECTED IN TWO WAYS ...
063646,000045: # 1. PRIOR TO VERIFLAG INVERSION (WHICH IS CAUSED BY THE GROUND/ASTRONAUT'S VERIFICATION OF UPDATE
063647,000046: # DATA BY SENDING A V33E WHEN V21N02 IS FLASHING)---
063648,000047: # NO PROTECTION EXCEPT PRE-P27 MODE IS RESTORED, COAST + ALIGN DOWNLIST IS SELECTED AND UPLINK
063649,000048: # ACTIVITY LIGHT IS TURNED OFF. (JUST AS IF A V34E WAS SENT DURING P27 DATA LOADS).
063650,000049: # V70,V71,V72 OR V73 WILL HAVE TO BE COMPLETELY RESENT BY USER.
063651,000050: # 2. AFTER VERIFLAG INVERSION (WHEN UPDATE OF THE SPECIFIED ERASABLES IS BEING PERFORMED)---
063652,000051: # PROTECTED AGAINST RESTARTS.
063653,000052:
063654,000053: # DEBRIS: UPBUFF (20D) TEMP STORAGE FOR ADDRESSES AND CONTENTS.
063655,000054: # UPVERB (1) VERB NUMBER MINUS 70D (E.G. FOR V72, UPVERB = 72D - 70D = 2)
063656,000055: # UPOLDMOD(1) FOR MAJOR MODE INTERRUPTED BY P27.
063657,000056: # COMPNUMB(1) TOTAL NUMBER OF COMPONENTS TO BE TRANSMITTED.
063658,000057: # UPCOUNT (1) ACTUAL NUMBER OF COMPONENTS RECEIVED.
063659,000058: # UPTEMP (1) SCRATCH, BUT USUALLY CONTAINS COMPONENT NUMBER TO BE CHANGED DURING VERIFY CYCLE
063660,000059:
063661,000060: # INPUT:
063662,000061:
063663,000062: # ENTRY: DESCRIPTION
063664,000063: # V70EXXXXXEXXXXXE (LIFTOFF TIME INCREMENT) DOUBLE PRECISION OCTAL TIME INCREMENT, XXXXX XXXXX,
063665,000064: # IS ADDED TO TEPHEM, SUBTRACTED FROM AGC CLOCK(TIME2,TIME1), SUBTRACTED FROM CSM STATE
063666,000065: # VECTOR TIME(TETCSM) AND SUBTRACTED FROM LEM STATE VECTOR TIME(TETLEM).
063667,000066: # THE DP OCTAL TIME INCREMENT IS SCALED AT 2(28).
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Page 1498
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063669,000068: # V71EIIEAAAAE (CONTIGUOUS BLOCK UPDATE) II-2 OCTAL COMPONENTS, XXXXX,
063670,000069: # XXXXXE ARE LOADED INTO ERASABLE STARTING AT ECADR, AAAA.
063671,000070: # XXXXXE IT IS .GE. 3 .AND. .LE. 20D.,
063672,000071: # AND (AAAA + II -3) DOES NOT PRODUCE AN ADDRESS IN THE
063673,000072: # 9 NEXT BANK
063674,000073: # . SCALING IS SAME AS INTERNAL REGISTERS.
063675,000074: # V72EIIE (SCATTER UPDATE) (II-1)/2 OCTAL COMPONENTS, XXXXX, ARE
063676,000075: # AAAAEXXXXXE LOADED INTO ERASABLE LOCATIONS, AAAA.
063677,000076: # AAAAEXXXXXE II IS .GE. 3 .AND. .LE. 19D, AND MUST BE ODD.
063678,000077: # . SCALING IS SAME AS INTERNAL REGISTERS.
063679,000078:
063680,000079: # V73EXXXXXEXXXXXE (OCTAL CLOCK INCREMENT) DOUBLE PRECISION OCTAL TIME
063681,000080: # INCREMENT XXXXX XXXXX, IS ADDED TO THE AGC CLOCK, IN
063682,000081: # CENTISECONDS SCALED AT (2)28.
063683,000082: # THIS LOAD IS THE OCTAL EQUIVALENT OF V55.
063684,000083:
063685,000084: # OUTPUT: IN ADDITION TO THE ABOVE REGISTER LOADS, ALL UPDATES
063686,000085: # COMPLEMENT BIT3 OF FLAGWORD7.
063687,000086:
063688,000087: # ADDITIONAL NOTES: VERB 71, JUST DEFINED ABOVE WILL BE USED TO PERFORM BUT NOT LIMITED TO THE FOLLOWING UPDATES --
063689,000088: # 1. CSM/LM STATE VECTOR UPDATE
063690,000089: # 2. REFSMMAT UPDATE
063691,000090:
063692,000091: # THE FOLLOWING COMMENTS DELINEATE EACH SPECIAL UPDATE ----
063693,000092:
063694,000093: # 1. CSM/LM STATE VECTOR UPDATE (ALL DATA ENTRIES IN OCTAL)
063695,000094: # ENTRIES: DATA DEFINITION: SCALE FACTORS:
063696,000095: # V71E CONTIGUOUS BLOCK UPDATE VERB
063697,000096: # 21E NUMBER OF COMPONENTS FOR STATE VECTOR UPDATE
063698,000097: # AAAAE ECADR OF 'UPSVFLAG'
063699,000098: # XXXXXE STATE VECTOR IDENTIFIER: 00001 FOR CSM, 77776 FOR LEM - EARTH SPHERE OF INFLUENCE SCALING
063700,000099: # 00002 FOR CSM, 77775 FOR LEM - LUNAR SPHERE OF INFLUENCE SCALING
063701,000100: # XXXXXEXXXXXE X POSITION
063702,000101: # XXXXXEXXXXXE Y POSITION
063703,000102: # XXXXXEXXXXXE Z POSITION
063704,000103: # XXXXXEXXXXXE X VELOCITY
063705,000104: # XXXXXEXXXXXE Y VELOCITY
063706,000105: # XXXXXEXXXXXE Z VELOCITY
063707,000106: # XXXXXEXXXXXE TIME FROM AGC CLOCK ZERO
063708,000107: # V33E VERB 33 TO SIGNAL THAT THE STATE VECTOR IS READY TO BE STORED.
063709,000108:
063710,000109: # 2. REFSMMAT (ALL DATA ENTRIES IN OCTAL)
063711,000110: # ENTRIES: DATA DEFINITIONS: SCALE FACTORS:
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Page 1499
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063713,000112: # V71E CONTIGUOUS BLOCK UPDATE VERB
063714,000113: # 24E NUMBER OF COMPONENTS FOR REFSMMAT UPDATE
063715,000114: # AAAAE ECADR OF 'REFSMMAT'
063716,000115: # XXXXXEXXXXXE ROW 1 COLUMN 1 2(-1)
063717,000116: # XXXXXEXXXXXE ROW 1 COLUMN 2 2(-1)
063718,000117: # XXXXXEXXXXXE ROW 1 COLUMN 3 2(-1)
063719,000118: # XXXXXEXXXXXE ROW 2 COLUMN 1 2(-1)
063720,000119: # XXXXXEXXXXXE ROW 2 COLUMN 2 2(-1)
063721,000120: # XXXXXEXXXXXE ROW 2 COLUMN 3 2(-1)
063722,000121: # XXXXXEXXXXXE ROW 3 COLUMN 1 2(-1)
063723,000122: # XXXXXEXXXXXE ROW 3 COLUMN 2 2(-1)
063724,000123: # XXXXXEXXXXXE ROW 3 COLUMN 3 2(-1)
063725,000124: # V33E VERB 33 TO SIGNAL THAT REFSMMAT IS READY TO BE STORED.
063726,000125:
063727,000126: 07,3777 BANK 07
063728,000127: 43,2000 SETLOC EXTVERBS
063729,000128: 43,2000 BANK
063730,000129:
063731,000130: 43,3726 E3,1706 EBANK= TEPHEM
063732,000131:
063733,000132: 43,3726 COUNT* $$/P27
063734,000133: 43,3726 35021 V70UPDAT CAF UP70 # COMES HERE ON V70E
063735,000134: 43,3727 13735 TCF V73UPDAT +1
063736,000135:
063737,000136: 43,3730 35017 V71UPDAT CAF UP71 # COMES HERE ON V71E
063738,000137: 43,3731 13735 TCF V73UPDAT +1
063739,000138:
063740,000139: 43,3732 35016 V72UPDAT CAF UP72 # COMES HERE ON V72E
063741,000140: 43,3733 13735 TCF V73UPDAT +1
063742,000141:
063743,000142: 43,3734 36214 V73UPDAT CAF UP73 # COMES HERE ON V73E
063744,000143:
063745,000144: 43,3735 54331 +1 TS UPVERBSV # SAVE UPVERB UNTIL IT'S OK TO ENTER P27
063746,000145:
063747,000146: 43,3736 02076 TC TESTXACT # GRAB DISPLAY IF AVAILABLE, OTHERWISE
063748,000147: # TURN *OPERATOR ERROR* ON AND TERMINATE JOB
063749,000148:
063750,000149: 43,3737 31011 CA MODREG # CHECK IF UPDATE ALLOWED
063751,000150: 43,3740 00006 EXTEND # FIRST CHECK FOR MODREG = +0, -0
063752,000151: 43,3741 13743 BZF +2 # (+0 = P00, -0 = FRESHSTART)
063753,000152: 43,3742 03753 TC CKMDMORE # NOW CHECK FOR PROGRAM WHICH CAN BE
063754,000153: # INTERRUPTED BY P27.
063755,000154:
063756,000155: 43,3743 31011 CAE MODREG # UPDATE ALLOWED.
063757,000156: 43,3744 54301 TS UPOLDMOD # SAVE CURRENT MAJOR MODE
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Page 1500
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063759,000158: 43,3745 30331 CAE UPVERBSV # SET UPVERB TO INDICATE TO P27
063760,000159: 43,3746 54302 TS UPVERB # WHICH EXTENDED VERB CALLED IT.
063761,000160:
063762,000161: 43,3747 35017 CAF ONE
063763,000162: 43,3750 54303 TS UPCOUNT # INITIALIZE UPCOUNT TO 1
063764,000163:
063765,000164: 43,3751 04701 TC POSTJUMP # LEAVE EXTENDED VERB BANK AND
063766,000165: 43,3752 57373 CADR UPPART2 # GO TO UPDATE PROGRAM (P27) BANK.
063767,000166:
063768,000167: 43,3753 40101 CKMDMORE CS FLAGWRD5
063769,000168: 43,3754 75010 MASK BIT8 # CHECK IF COMPUTER IS LGC
063770,000169: 43,3755 10000 CCS A # IS COMPUTER LGC OR AGC
063771,000170: 43,3756 13764 UPERLEM TCF UPERROR # ERROR- IT'S THE LEM + MODE IS NOT POO.
063772,000171: 43,3757 45016 CS TWO
063773,000172: 43,3760 71011 MASK MODREG
063774,000173: 43,3761 10000 CCS A
063775,000174: 43,3762 13764 UPERCMC TCF UPERROR # ERROR- IT'S THE CMC AND MODE IS NOT
063776,000175: # P00 OR P02.
063777,000176: 43,3763 00002 TC Q # ALLOW UPDATE TO PROCEED
063778,000177:
063779,000178: 43,3764 04701 UPERROR TC POSTJUMP # TURN ON 'OPERATOR ERROR' LIGHT
063780,000179: 43,3765 57754 CADR UPERROUT +2 # GO TO COMMON UPDATE PROGRAM EXIT
063781,000180:
063782,000181: 43,3766 30,2000 SBANK= LOWSUPER
063783,000182: 43,3766 5021 UP70 EQUALS ZERO
063784,000183: 43,3766 5017 UP71 EQUALS ONE
063785,000184: 43,3766 5016 UP72 EQUALS TWO
063786,000185: 43,3766 6214 UP73 EQUALS THREE
063787,000186:
063788,000187: 04,3757 BANK 04
063789,000188: 27,2000 SETLOC UPDATE2
063790,000189: 27,2000 BANK
063791,000190:
063792,000191: 27,3373 COUNT* $$/P27
063793,000192:
063794,000193: 27,3373 UPPART2 EQUALS # UPDATE PROGRAM - PART 2
063795,000194:
063796,000195: 27,3373 05412 TC PHASCHNG # SET RESTART GROUP 6 TO RESTORE OLD MODE
063797,000196: 27,3374 07026 OCT 07026 # AND DOWNLIST AND EXIT IF RESTART OCCURS.
063798,000197: 27,3375 30000 OCT 30000 # PRIORITY SAME AS CHRPRIO
063799,000198: 27,3376 0304 EBANK= UPBUFF
063800,000199: 27,3376 03704 56060 2CADR UPOUT +1
063801,000200:
063802,000201: 27,3400 35017 CAF ONE
063803,000202: 27,3401 54332 TS DNLSTCOD # DOWNLIST
063804,000203:
063805,000204: 27,3402 05354 TC NEWMODEX # SET MAJOR MODE = 27
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Page 1501
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063807,000206: 27,3403 00033 DEC 27 B-14
063808,000207:
063809,000208: 27,3404 50302 INDEX UPVERB # BRANCH DEPENDING ON WHETHER THE UPDATE
063810,000209: 27,3405 13406 TCF +1 # VERB REQUIRES A FIXED OR VARIABLE NUMBER
063811,000210: 27,3406 13411 TCF +3 # V70 FIXED. (OF COMPONENTS.
063812,000211: 27,3407 13414 TCF OHWELL1 # V71 VARIABLE - GO GET NO. OF COMPONENTS
063813,000212: 27,3410 13414 TCF OHWELL1 # V72 VARIABLE - GO GET NO. OF COMPONENTS
063814,000213: 27,3411 35016 CA TWO # V73 (AND V70) FIXED
063815,000214: 27,3412 54300 TS COMPNUMB # SET NUMBER OF COMPONENTS TO 2.
063816,000215: 27,3413 13437 TCF OHWELL2 # GO GET THE TWO UPDATE COMPONENTS
063817,000216:
063818,000217: 27,3414 33507 OHWELL1 CAF ADUPBUFF # * REQUEST USER TO SEND NUMBER *
063819,000218: 27,3415 54156 TS MPAC +2 # * OF COMPONENTS PARAMETER(II). *
063820,000219: 27,3416 33510 +2 CAF UPLOADNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
063821,000220: 27,3417 04662 TC BANKCALL # DISPLAY A FLASHING V21N01
063822,000221: 27,3420 20561 CADR GOXDSPF # TO REQUEST II.
063823,000222: 27,3421 13704 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN
063824,000223: 27,3422 13416 TCF OHWELL1 +2
063825,000224: 27,3423 03500 TC CK4V32 # DATA OR V32 RETURN
063826,000225: 27,3424 45016 CS BIT2
063827,000226: 27,3425 60304 AD UPBUFF # IS II (NUMBER OF COMPONENTS PARAMETER)
063828,000227: 27,3426 00006 EXTEND # .GE. 3 AND .LE. 20D.
063829,000228: 27,3427 63416 BZMF OHWELL1 +2
063830,000229: 27,3430 40304 CS UPBUFF
063831,000230: 27,3431 64376 AD UP21
063832,000231: 27,3432 00006 EXTEND
063833,000232: 27,3433 63416 BZMF OHWELL1 +2
063834,000233: 27,3434 30304 CAE UPBUFF
063835,000234: 27,3435 54300 TS COMPNUMB # SAVE II IN COMPNUMB
063836,000235:
063837,000236: # UPBUFF LOADING SEQUENCE
063838,000237:
063839,000238: 27,3436 24303 INCR UPCOUNT # INCREMENT COUNT OF COMPONENTS RECEIVED.
063840,000239: 27,3437 33654 OHWELL2 CAF ADUPBFM1 # CALCULATE LOCATION (ECADR) IN UPBUFF
063841,000240: 27,3440 60303 AD UPCOUNT # WHERE NEXT COMPONENT SHOULD BE STORED.
063842,000241: 27,3441 54156 +2 TS MPAC +2 # PLACE ECADR INTO R3.
063843,000242: 27,3442 33510 +3 CAF UPLOADNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
063844,000243: 27,3443 04662 TC BANKCALL # DISPLAY A FLASHING V21N01
063845,000244: 27,3444 20561 CADR GOXDSPF # TO REQUEST DATA.
063846,000245: 27,3445 13704 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN.
063847,000246: 27,3446 13442 TCF OHWELL2 +3 # V33 PROCEED RETURN
063848,000247: 27,3447 03500 TC CK4V32 # DATA OR V32 RETURN
063849,000248: 27,3450 40303 CS UPCOUNT # HAVE WE FINISHED RECEIVING ALL
063850,000249: 27,3451 60300 AD COMPNUMB # THE DATA WE EXPECTED.
063851,000250: 27,3452 00006 EXTEND
063852,000251: 27,3453 63455 BZMF UPVERIFY # YES- GO TO VERIFICATION SEQUENCE
063853,000252: 27,3454 13436 TCF OHWELL2 -1 # NO- REQUEST ADDITIONAL DATA.
063854,000253:
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Page 1502
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063856,000255: # VERIFY SEQUENCE
063857,000256: 27,3455 33506 UPVERIFY CAF ADUPTEMP # PLACE ECADR WHERE COMPONENT NO. INDEX
063858,000257: 27,3456 54156 TS MPAC +2 # IS TO BE STORED INTO R3.
063859,000258: 27,3457 33511 CAF UPVRFYNV # (CK4V32 RETURNS HERE IF V32 ENCOUNTERED)
063860,000259: 27,3460 04662 TC BANKCALL # DISPLAY A FLASHING V21N02 TO REQUEST
063861,000260: 27,3461 20561 CADR GOXDSPF # DATA CORRECTION OR VERIFICATION.
063862,000261: 27,3462 13704 TCF UPOUT4 # V34 TERMINATE UPDATE (P27) RETURN
063863,000262: 27,3463 13512 TCF UPSTORE # V33 DATA SENT IS GOOD. GO STORE IT.
063864,000263: 27,3464 03500 TC CK4V32 # COMPONENT NO. INDEX OR V32 RETURN
063865,000264: 27,3465 30330 CA UPTEMP # DOES THE COMPONENT NO. INDEX JUST SENT
063866,000265: 27,3466 00006 EXTEND # SPECIFY A LEGAL COMPONENT NUMBER?
063867,000266: 27,3467 63455 BZMF UPVERIFY # NO, IT IS NOT POSITIVE NONZERO
063868,000267: 27,3470 40330 CS UPTEMP
063869,000268: 27,3471 60300 AD COMPNUMB
063870,000269: 27,3472 65017 AD BIT1
063871,000270: 27,3473 00006 EXTEND
063872,000271: 27,3474 63455 BZMF UPVERIFY # NO
063873,000272: 27,3475 33654 CAF ADUPBFM1 # YES- BASED ON THE COMPONENT NO. INDEX
063874,000273: 27,3476 60330 AD UPTEMP # CALCULATE THE ECADR OF LOCATION IN
063875,000274: 27,3477 13441 TCF OHWELL2 +2 # UPBUFF WHICH USER WANTS TO CHANGE.
063876,000275:
063877,000276: 27,3500 27,3704 UPOUT4 EQUALS UPOUT +1 # COMES HERE ON V34 TO TERMINATE UPDATE
063878,000277:
063879,000278: # CHECK FOR VERB 32 SEQUENCE
063880,000279:
063881,000280: 27,3500 40154 CK4V32 CS MPAC # ON DATA RETURN FROM 'GOXDSPF'
063882,000281: 27,3501 75012 MASK BIT6 # ON DATA RETURN FROM "GOXDSP"& THE CON-
063883,000282: 27,3502 10000 CCS A # TENTS OF MPAC = VERB. SO TEST FOR V32.
063884,000283: 27,3503 00002 TC Q # IT'S NOT A V32, IT'S DATA. PROCEED.
063885,000284: 27,3504 50002 INDEX Q
063886,000285: 27,3505 77771 TC 0 -6 # V32 ENCOUNTERED - GO BACK AND GET DATA
063887,000286:
063888,000287: 27,3506 00330 ADUPTEMP ADRES UPTEMP # ADDRESS OF TEMP STORAGE FOR CORRECTIONS
063889,000288: 27,3507 00304 ADUPBUFF ADRES UPBUFF # ADDRESS OF UPDATE DATA STORAGE BUFFER
063890,000289: 27,3510 05201 UPLOADNV VN 2101 # VERB 21 NOUN 01
063891,000290: 27,3511 05202 UPVRFYNV VN 2102 # VERB 21 NOUN 02
063892,000291: 27,3512 4376 UP21 = MD1 # DEC 21 = MAX NO OF COMPONENTS +1
063893,000292: 27,3512 5022 UPDTPHAS EQUALS FIVE
063894,000293:
063895,000294: # PRE-STORE AND FAN TO APPROPRIATE BRANCH SEQUENCE
063896,000295:
063897,000296: 27,3512 UPSTORE EQUALS # GROUND HAS VERIFIED UPDATE. STORE DATA.
063898,000297:
063899,000298: 27,3512 00004 INHINT
063900,000299:
063901,000300: 27,3513 30103 CAE FLAGWRD7 # INVERT VERIFLAG (BIT 3 OF FLAGWRD7) TO
063902,000301: 27,3514 56001 XCH L # INDICATE TO THE GROUND (VIA DOWNLINK)
063903,000302: 27,3515 35015 CAF BIT3 # THAT THE V33 (WHICH THE GROUND SENT TO
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Page 1503
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063905,000304: 27,3516 00006 EXTEND # VERIFY THE UPDATE) HAS BEEN SUCCESSFULLY
063906,000305: 27,3517 06001 RXOR LCHAN # RECEIVED BY THE UPDATE PROGRAM
063907,000306: 27,3520 54103 TS FLAGWRD7
063908,000307:
063909,000308: 27,3521 05412 TC PHASCHNG # SET RESTART GROUP 6 TO REDO THE UPDATE
063910,000309: 27,3522 04026 OCT 04026 # DATA STORE IF A RESTART OCCURS.
063911,000310: 27,3523 00004 INHINT # (BECAUSE PHASCHNG DID A RELINT)
063912,000311:
063913,000312: 27,3524 45016 CS TWO # GO TO UPFNDVAC IF INSTALL IS REQUIRED,
063914,000313: 27,3525 60302 AD UPVERB # THAT IS, IF IT'S A V70 - V72.
063915,000314: 27,3526 00006 EXTEND # GO TO UPEND73 IF IT'S A V73.
063916,000315: 27,3527 63536 BZMF UPFNDVAC
063917,000316:
063918,000317: # VERB 73 BRANCH
063919,000318:
063920,000319: 27,3530 00006 UPEND73 EXTEND # V73-PERFORM DP OCTAL AGC CLOCK INCREMENT
063921,000320: 27,3531 30305 DCA UPBUFF
063922,000321: 27,3532 52315 DXCH UPBUFF +8D
063923,000322: 27,3533 03561 TC TIMEDIDL
063924,000323: 27,3534 04400 TC FALTON # ERROR- TURN ON *OPERATOR ERROR* LIGHT
063925,000324: 27,3535 03704 TC UPOUT +1 # GO TO COMMON UPDATE PROGRAM EXIT
063926,000325:
063927,000326: 27,3536 34371 UPFNDVAC CAF CHRPRIO # (USE EXTENDED VERB PRIORITY)
063928,000327: 27,3537 05147 TC FINDVAC # GET VAC AREA FOR 'CALL INTSTALL'
063929,000328: 27,3540 E3,1706 EBANK= TEPHEM
063930,000329: 27,3540 03543 56063 2CADR UPJOB # (NOTE: THIS WILL ALSO SET EBANK FOR
063931,000330: 27,3542 05217 TC ENDOFJOB # 'TEPHEM' UPDATE BY V70)
063932,000331:
063933,000332: 27,3543 06006 UPJOB TC INTPRET # THIS COULD BE A STATE VECTOR UPDATE -- SO
063934,000333: 27,3544 77624 CALL # WAIT (PUT JOB TO SLEEP) IF ORBIT INT(OI)
063935,000334: 27,3545 27442 INTSTALL # IS IN PROGRESS -- OR -- GRAB OI AND RETURN
063936,000335: # TO UPWAKE IF OI IS NOT IN PROGRESS.
063937,000336:
063938,000337: 27,3546 77776 UPWAKE EXIT
063939,000338:
063940,000339: 27,3547 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063941,000340: 27,3550 04026 OCT 04026
063942,000341:
063943,000342: 27,3551 05546 TC UPFLAG # SET INTEGRATION RESTART BIT
063944,000343: 27,3552 00236 ADRES REINTFLG
063945,000344: 27,3553 00004 INHINT
063946,000345: 27,3554 UPPART3 EQUALS
063947,000346:
063948,000347: 27,3554 50302 INDEX UPVERB # BRANCH TO THE APPROPRIATE UPDATE VERB
063949,000348: 27,3555 13556 TCF +1 # ROUTINE TO ACTUALLY PERFORM THE UPDATE
063950,000349: 27,3556 13715 TCF UPEND70 # V70
063951,000350: 27,3557 13624 TCF UPEND71 # V71
063952,000351: 27,3560 13656 TCF UPEND72 # V72
063953,000352:
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063955,000354: # ROUTINE TO INCREMENT CLOCK (TIME2,TIME1) WITH CONTENTS OF DP WORD AT UPBUFF.
063956,000355: 27,3561 00006 TIMEDIDL EXTEND
063957,000356: 27,3562 22330 QXCH UPTEMP # SAVE Q FOR RETURN
063958,000357: 27,3563 35021 CAF ZERO # ZERO AND SAVE TIME2,TIME1
063959,000358: 27,3564 22007 ZL
063960,000359: 27,3565 52025 DXCH TIME2
063961,000360: 27,3566 52327 DXCH UPBUFF +18D # STORE IN CASE OF OVERFLOW
063962,000361:
063963,000362: 27,3567 35022 CAF UPDTPHAS # DO
063964,000363: 27,3570 54001 TS L # A
063965,000364: 27,3571 40000 COM # QUICK
063966,000365: 27,3572 52765 DXCH -PHASE6 # PHASCHNG
063967,000366:
063968,000367: 27,3573 00004 TIMEDIDR INHINT
063969,000368: 27,3574 35021 CAF ZERO
063970,000369: 27,3575 22007 ZL # PICK UP INCREMENTER(AND ZERO
063971,000370: 27,3576 54156 TS MPAC +2 # IT IN CASE OF RESTARTS) AND
063972,000371: 27,3577 52315 DXCH UPBUFF +8D # STORE IT
063973,000372: 27,3600 52155 DXCH MPAC # INTO MPAC FOR TPAGREE.
063974,000373:
063975,000374: 27,3601 00006 EXTEND
063976,000375: 27,3602 30327 DCA UPBUFF +18D
063977,000376: 27,3603 20155 DAS MPAC # FORM SUM IN MPAC
063978,000377: 27,3604 00006 EXTEND
063979,000378: 27,3605 13614 BZF DELTAOK # TEST FOR OVERFLOW
063980,000379: 27,3606 35021 CAF ZERO
063981,000380: 27,3607 52327 DXCH UPBUFF +18D # OVERFLOW, RESTORE OLD VALUE OF CLOCK
063982,000381: 27,3610 20025 DAS TIME2 # AND TURN ON OPERATOR ERROR
063983,000382:
063984,000383: 27,3611 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063985,000384: 27,3612 04026 OCT 04026
063986,000385:
063987,000386: 27,3613 00330 TC UPTEMP # GO TO ERROR EXIT
063988,000387:
063989,000388: 27,3614 07226 DELTAOK TC TPAGREE # FORCE SIGN AGREEMENT
063990,000389: 27,3615 52155 DXCH MPAC
063991,000390: 27,3616 20025 DAS TIME2 # INCREMENT TIME2,TIME1
063992,000391:
063993,000392: 27,3617 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
063994,000393: 27,3620 04026 OCT 04026
063995,000394:
063996,000395: 27,3621 00004 INHINT
063997,000396: 27,3622 50330 INDEX UPTEMP # (CODED THIS WAY FOR RESTART PROTECTION)
063998,000397: 27,3623 00001 TC 1 # NORMAL RETURN
063999,000398:
064000,000399: # VERB 71 BRANCH
064001,000400:
064002,000401: 27,3624 30305 UPEND71 CAE UPBUFF +1 # SET EBANK
064003,000402: 27,3625 54003 TS EBANK # AND
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Page 1505
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064005,000404: 27,3626 74373 MASK LOW8 # CALCULATE
064006,000405: 27,3627 54330 TS UPTEMP # S-REG VALUE OF RECEIVING AREA
064007,000406: 27,3630 67714 AD NEG3 # IN THE PROCESS OF
064008,000407: 27,3631 60300 AD COMPNUMB # PERFORMING
064009,000408: 27,3632 00006 EXTEND # THIS UPDATE
064010,000409: 27,3633 13641 BZF STORLP71 # WILL WE
064011,000410: 27,3634 75007 MASK BIT9 # OVERFLOW
064012,000411: 27,3635 10000 CCS A # INTO THE NEXT EBANK....
064013,000412: 27,3636 13752 TCF UPERROUT # YES
064014,000413:
064015,000414: 27,3637 37714 CA NEG3 # NO- CALCULATE NUMBER OF
064016,000415: 27,3640 60300 AD COMPNUMB # WORDS TO BE STORED MINUS ONE
064017,000416: 27,3641 54154 STORLP71 TS MPAC # SAVE NO. OF WORDS REMAINING MINUS ONE
064018,000417: 27,3642 50000 INDEX A # TAKE NEXT UPDATE WORD FROM
064019,000418: 27,3643 30306 CA UPBUFF +2 # UPBUFF AND
064020,000419: 27,3644 54001 TS L # SAVE IT IN L
064021,000420: 27,3645 30154 CA MPAC # CALCULATE NEXT
064022,000421: 27,3646 60330 AD UPTEMP # RECEIVING ADDRESS
064023,000422: 27,3647 50000 INDEX A
064024,000423: 27,3650 E3,1400 EBANK= 1400
064025,000424: 27,3650 23400 LXCH 1400 # UPDATE THE REGISTER BY CONTENTS OF L
064026,000425: 27,3651 E3,1706 EBANK= TEPHEM
064027,000426: 27,3651 10154 CCS MPAC # ARE THERE ANY WORDS LEFT TO BE STORED
064028,000427: 27,3652 13641 TCF STORLP71 # YES
064029,000428: 27,3653 13703 TCF UPOUT # NO- THEN EXIT UPDATE PROGRAM
064030,000429: 27,3654 00303 ADUPBFM1 ADRES UPBUFF -1 # SAME AS ADUPBUFF BUT LESS 1 (DON'T MOVE)
064031,000430: 27,3655 13703 TCF UPOUT # NO- EXIT UPDATE (HERE WHEN COMPNUMB = 3)
064032,000431:
064033,000432: # VERB 72 BRANCH
064034,000433:
064035,000434: 27,3656 35017 UPEND72 CAF BIT1 # HAVE AN ODD NO. OF COMPONENTS
064036,000435: 27,3657 70300 MASK COMPNUMB # BEEN SENT FOR A V72 UPDATE ...
064037,000436: 27,3660 10000 CCS A
064038,000437: 27,3661 13663 TCF +2 # YES
064039,000438: 27,3662 13752 TCF UPERROUT # ERROR- SHOULD BE ODD NO. OF COMPONENTS
064040,000439: 27,3663 45016 CS BIT2
064041,000440: 27,3664 60300 AD COMPNUMB
064042,000441: 27,3665 54154 LDLOOP72 TS MPAC # NOW PERFORM THE UPDATE
064043,000442: 27,3666 50000 INDEX A
064044,000443: 27,3667 30305 CAE UPBUFF +1 # PICK UP NEXT UPDATE WORD
064045,000444: 27,3670 22000 LXCH A
064046,000445: 27,3671 10154 CCS MPAC # SET POINTER TO ECADR (MUST BE CCS)
064047,000446: 27,3672 54154 TS MPAC
064048,000447: 27,3673 50000 INDEX A
064049,000448: 27,3674 30305 CAE UPBUFF +1 # PICK UP NEXT ECADR OF REG TO BE UPDATED
064050,000449: 27,3675 54003 TS EBANK # SET EBANK
064051,000450: 27,3676 74373 MASK LOW8 # ISOLATE RELATIVE ADDRESS
064052,000451: 27,3677 50000 INDEX A
064053,000452:
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064055,000454: 27,3700 E3,1400 EBANK= 1400
064056,000455: 27,3700 23400 LXCH 1400 # UPDATE THE REGISTER BY CONTENTS OF L
064057,000456: 27,3701 E3,1706 EBANK= TEPHEM
064058,000457: 27,3701 10154 CCS MPAC # ARE WE THROUGH THE V72 UPDATE...
064059,000458: 27,3702 13665 TCF LDLOOP72 # NO
064060,000459:
064061,000460: # NORMAL FINISH OF P27
064062,000461:
064063,000462: 27,3703 UPOUT EQUALS
064064,000463: 27,3703 02671 TC INTWAKEU # RELEASE GRAB OF ORBITAL INTEGRATION
064065,000464: 27,3704 30301 +1 CAE UPOLDMOD # RESTORE PRIOR P27 MODE
064066,000465: 27,3705 05357 TC NEWMODEX +3
064067,000466: 27,3706 35021 CAF ZERO
064068,000467: 27,3707 54332 TS DNLSTCOD
064069,000468: 27,3710 03757 TC UPACTOFF # TURN OFF 'UPLINK ACTIVITY' LIGHT
064070,000469: 27,3711 00006 EXTEND # KILL GROUP 6.
064071,000470: 27,3712 35021 DCA NEG0
064072,000471: 27,3713 52765 DXCH -PHASE6
064073,000472:
064074,000473: 27,3714 05534 TC ENDEXT # EXTENDED VERB EXIT
064075,000474:
064076,000475: # VERB 70 BRANCH
064077,000476:
064078,000477: 27,3715 00006 UPEND70 EXTEND # V70 DOES THE FOLLOWING WITH DP DELTA
064079,000478: 27,3716 40305 DCS UPBUFF # TIME IN UPBUFF
064080,000479: 27,3717 52315 DXCH UPBUFF +8D
064081,000480: 27,3720 03561 TC TIMEDIDL # DECREMENT AGC CLOCK
064082,000481:
064083,000482: 27,3721 03752 TC UPERROUT # ERROR WHILE DECREMENTING CLOCK -- EXIT
064084,000483:
064085,000484: 27,3722 E3,1706 EBANK= TEPHEM
064086,000485: 27,3722 00006 EXTEND
064087,000486: 27,3723 40305 DCS UPBUFF # COPY DECREMENTERS FOR
064088,000487: 27,3724 52317 DXCH UPBUFF +10D # RESTART PROTECTION
064089,000488: 27,3725 00006 EXTEND
064090,000489: 27,3726 40305 DCS UPBUFF
064091,000490: 27,3727 52321 DXCH UPBUFF +12D
064092,000491:
064093,000492: 27,3730 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
064094,000493: 27,3731 04026 OCT 04026
064095,000494:
064096,000495: 27,3732 35021 CAF ZERO
064097,000496: 27,3733 22007 ZL
064098,000497: 27,3734 52317 DXCH UPBUFF +10D # DECREMENT CSM STATE VECTOR TIME
064099,000498: 27,3735 21571 DAS TETCSM
064100,000499:
064101,000500: 27,3736 35021 CAF ZERO
064102,000501:
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064104,000503: 27,3737 22007 ZL
064105,000504: 27,3740 52321 DXCH UPBUFF +12D # DECREMENT LEM STATE VECTOR TIME
064106,000505: 27,3741 21643 DAS TETLEM
064107,000506: 27,3742 35021 CAF ZERO
064108,000507: 27,3743 22007 ZL
064109,000508: 27,3744 52305 DXCH UPBUFF
064110,000509: 27,3745 21710 DAS TEPHEM +1 # INCREMENT TP TEPHEM
064111,000510: 27,3746 27706 ADS TEPHEM
064112,000511:
064113,000512: 27,3747 05412 TC PHASCHNG # RESTART PROTECT (GROUP 6)
064114,000513: 27,3750 04026 OCT 04026
064115,000514:
064116,000515: 27,3751 0304 EBANK= UPBUFF
064117,000516:
064118,000517: 27,3751 03703 TC UPOUT # GO TO STANDARD UPDATE PROGRAM EXIT
064119,000518:
064120,000519: # ERROR SEQUENCE
064121,000520:
064122,000521: 27,3752 04400 UPERROUT TC FALTON # TURN ON *OPERATOR ERROR* LIGHT
064123,000522: 27,3753 13703 TCF UPOUT # GO TO COMMON UPDATE PROGRAM EXIT
064124,000523:
064125,000524: 27,3754 04400 +2 TC FALTON # TURN ON 'OPERATOR ERROR' LIGHT
064126,000525: 27,3755 03757 TC UPACTOFF # TURN OFF 'UPLINK ACTIVITY' LIGHT
064127,000526: 27,3756 05534 TC ENDEXT # EXTENDED VERB EXIT
064128,000527: # (THE PURPOSE OF UPERROUT +2 EXIT IS
064129,000528: # TO PROVIDE AN ERROR EXIT WHICH DOES NOT
064130,000529: # RESET ANY RESTART GROUPS)
064131,000530:
064132,000531: # :UPACTOFF: IS A ROUTINE TO TURN OFF UPLINK ACTIVITY LIGHT ON ALL EXITS FROM UPDATE PROGRAM (P27).
064133,000532:
064134,000533: 27,3757 45015 UPACTOFF CS BIT3
064135,000534: 27,3760 00006 EXTEND # TURN OFF UPLINK ACTIVITY LIGHT
064136,000535: 27,3761 03011 WAND DSALMOUT # (BIT 3 OF CHANNEL 11)
064137,000536: 27,3762 00002 TC Q
End of include-file UPDATE_PROGRAM.agc. Parent file is MAIN.agc