Source Code
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This is an attempt to recreate Luminary 99 Rev 2, otherwise known as LUM99R2, from Luminary 99 Rev 1 and ephemeris data from Luminary 116. The differences are confined to the last 10-12 lines of the CONTROLLED CONSTANTS. Luminary 99 Rev 1 source-code was transcribed from a printout in the MIT Museum, while Luminary 116 source code was transcribed from a printout belonging to Don Eyles. AGC developer James Kernan, the "rope mother" for the Apollo 11 Lunar Module's AGC, explains as follows: "At the last minute, Dan Lickly, our chief engineer, appeared with ephemerides updates and it took two tries to get it right. The result was that we created Lum99 Revision 1 and Lum99 Revision 2." It is suspected that the former is what's in the MIT Museum, and the latter is what we are trying to recreate here. As for which revision actually flew in Apollo 11, all of the other available surviving evidence points to Rev 1 rather than to Rev 2, so we're just not sure! |
042287,000002: ## Copyright: Public domain.
042288,000003: ## Filename: DOWN_TELEMETRY_PROGRAM.agc
042289,000004: ## Purpose: Part of the source code for Luminary 1A build 099.
042290,000005: ## It is part of the source code for the Lunar Module's (LM)
042291,000006: ## Apollo Guidance Computer (AGC), for Apollo 11.
042292,000007: ## Assembler: yaYUL
042293,000008: ## Contact: Ron Burkey <info@sandroid.org>.
042294,000009: ## Website: www.ibiblio.org/apollo.
042295,000010: ## Pages: 988-997
042296,000011: ## Mod history: 2009-05-24 RSB Adapted from the corresponding
042297,000012: ## Luminary131 file, using page
042298,000013: ## images from Luminary 1A.
042299,000014: ## 2011-01-06 JL Fixed pseudo-label indentation.
042300,000015: ## 2016-12-17 RSB Proofed text comments with octopus/ProoferComments
042301,000016: ## and corrected the errors found.
042302,000017: ## 2017-01-28 RSB Back-ported some comment-text fixes
042303,000018: ## identified from Luminary 69.
042304,000019: ## 2017-03-03 RSB Snapshot of Luminary 99 Rev 1.
042305,000020: ## 2017-03-13 RSB Comment-text fixes noted in proofing Luminary 116.
042306,000021: ## 2017-03-15 RSB Comment-text fixes identified in 5-way
042307,000022: ## side-by-side diff of Luminary 69/99/116/131/210.
042308,000023:
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042310,000025: # PROGRAM NAME - DOWN TELEMETRY PROGRAM
042311,000026: # MOD NO. - 0 TO COMPLETELY REWRITE THE DOWN TELEMETRY PROGRAM AND DOWNLINK ERASABLE DUMP PROGRAM FOR THE
042312,000027: # PURPOSE OF SAVING APPROXIMATELY 150 WORDS OF CORE STORAGE.
042313,000028: # THIS CHANGE REQUIRES AN ENTIRELY NEW METHOD OF SPECIFYING DOWNLINK LISTS. REFER TO DOWNLINK
042314,000029: # LISTS LOG SECTION FOR MORE DETAILS. HOWEVER THIS CHANGE WILL NOT AFFECT THE GROUND PROCESSING
042315,000030: # OF DOWN TELEMETRY DATA.
042316,000031: # MOD BY - KILROY, SMITH, DEWITT
042317,000032: # DATE - 02 OCT 67
042318,000033: # AUTHORS - KILROY, SMITH, DEWITT, DEWOLF, FAGIN
042319,000034: # LOG SECTION - DOWN-TELEMETRY PROGRAM
042320,000035:
042321,000036: # FUNCTIONAL DESCRIPTION - THIS ROUTINE IS INITIATED BY TELEMETRY END
042322,000037: # PULSE FROM THE DOWNLINK TELEMETRY CONVERTER. THIS PULSE OCCURS
042323,000038: # AT 50 TIMES PER SEC (EVERY 20 MS) THEREFORE DODOWNTM IS
042324,000039: # EXECUTED AT THESE RATES. THIS ROUTINE SELECTS THE APPROPRIATE
042325,000040: # AGC DATA TO BE TRANSMITTED DOWNLINK AND LOADS IT INTO OUTPUT
042326,000041: # CHANNELS 34 AND 35. THE INFORMATION IS THEN GATED OUT FROM THE
042327,000042: # LGC IN SERIAL FASHION.
042328,000043:
042329,000044: # THIS PROGRAM IS CODED FOR A 2 SECOND DOWNLIST. SINCE DOWNRUPTS
042330,000045: # OCCUR EVERY 20 MS AND 2 AGC COMPUTER WORDS CAN BE PLACED IN
042331,000046: # CHANNELS 34 AND 35 DURING EACH DOWNRUPT THE PROGRAM IS CAPABLE
042332,000047: # OF SENDING 200 AGC WORDS EVERY 2 SECONDS.
042333,000048:
042334,000049: # CALLING SEQUENCE - NONE
042335,000050: # PROGRAM IS ENTERED VIA TCF DODOWNTM WHICH IS EXECUTED AS A
042336,000051: # RESULT OF A DOWNRUPT. CONTROL IS RETURNED VIA TCF RESUME WHICH
042337,000052: # IN EFFECT IS A RESUME.
042338,000053:
042339,000054: # SUBROUTINES CALLED - NONE
042340,000055:
042341,000056: # NORMAL EXIT MODE - TCF RESUME
042342,000057:
042343,000058: # ALARM OR ABORT EXIT MODE - NONE
042344,000059:
042345,000060: # RESTART PROTECTION:
042346,000061: # ON A FRESH START AND RESTART THE 'STARTSUB' SUBROUTINE WILL INITIALIZE THE DOWNLIST POINTER (ACTUALLY
042347,000062: # DNTMGOTO) TO THE BEGINNING OF THE CURRENT DOWNLIST (I.E. CURRENT CONTENTS OF DNLSTADR). THIS HAS THE
042348,000063: # EFFECT OF IGNORING THE REMAINDER OF THE DOWNLIST WHICH THE DOWN-TELEMETRY PROGRAM WAS WORKING ON WHEN
042349,000064: # THE RESTART (OR FRESH START) OCCURRED AND RESUME DOWN TELEMETRY FROM THE BEGINNING OF THE CURRENT
042350,000065: # DOWNLIST.
042351,000066:
042352,000067: # ALSO OF INTEREST IS THE FACT THAT ON A RESTART THE AGC WILL ZERO DOWNLINK CHANNELS 13, 34 AND 35.
042353,000068:
042354,000069: # DOWNLINK LIST SELECTION:
042355,000070: # THE APPROPRIATE DOWNLINK LISTS ARE SELECTED BY THE FOLLOWING:
042356,000071: # 1. FRESH START
042357,000072: # 2. V37EXXE WHERE XX = THE MAJOR MODE BEING SELECTED.
042358,000073: # 3. UPDATE PROGRAM (P27)
042359,000074: # 4. NON-V37 SELECTABLE TYPE PROGRAMS (E.G. AGS INITIALIZATION (SUNDANCE, LUMINARY) AND P61-P62
042360,000075: # TRANSITION (COLOSSUS) ETC.).
042361,000076:
042362,000077: # DOWNLINK LIST RULES AND LIMITATIONS:
042363,000078: # READ SECTION(S) WHICH FOLLOW 'DEBRIS' WRITEUP.
042364,000079:
042365,000080: # OUTPUT - EVERY 2 SECONDS 100 DOUBLE PRECISION WORDS (I.E. 200 LGC
042366,000081: # COMPUTER WORDS) ARE TRANSMITTED VIA DOWNLINK.
042367,000082:
042368,000083: # ERASABLE INITIALIZATION REQUIRED - NONE
042369,000084: # 'DNTMGOTO' AND 'DNLSTADR' ARE INITIALIZED BY THE FRESH START PROGRAM.
042370,000085:
042371,000086: # DEBRIS (ERASABLE LOCATIONS DESTROYED BY THIS PROGRAM) -
042372,000087: # LDATALST, DNTMBUFF TO DNTMBUFF +21D, TMINDEX, DNQ.
042373,000088:
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042376,000091:
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042378,000093: # DODOWNTM IS ENTERED EVERY 20 MS BY AN INTERRUPT TRIGGERED BY THE
042379,000094: # RECEIPT OF AN ENDPULSE FROM THE SPACECRAFT TELEMETRY PROGRAMMER.
042380,000095:
042381,000096: # NOTES REGARDING DOWNLINK LISTS ASSOCIATED WITH THIS PROGRAM:
042382,000097: # 1. DOWNLISTS. - DOWNLISTS MUST BE COMPILED IN THE SAME BANK AS THE
042383,000098: # DOWN-TELEMETRY PROGRAM. THIS IS DONE FOR EASE OF CODING, FASTER
042384,000099: # EXECUTION.
042385,000100: # 2. EACH DOWNLINK LIST CONSISTS OF A CONTROL LIST AND A NUMBER OF
042386,000101: # SUBLISTS.
042387,000102: # 3. A SUBLIST REFERS TO A SNAPSHOT OR DATA COMMON TO THE SAME OR OTHER
042388,000103: # DOWNLINK LISTS. ANY SUBLIST CONTAINING COMMON DATA NEEDS TO BE
042389,000104: # CODED ONLY ONCE FOR THE APPLICABLE DOWNLINK LISTS.
042390,000105: # 4. SNAPSHOT SUBLISTS REFER SPECIFICALLY TO HOMOGENOUS DATA WHICH MUST BE
042391,000106: # SAVED IN A BUFFER DURING ONE DOWNRUPT.
042392,000107: # 5. THE 1DNADR FOR THE 1ST WORD OF SNAPSHOT DATA IS FOUND AT THE END
042393,000108: # OF EACH SNAPSHOT SUBLIST, SINCE THE PROGRAM CODING SENDS THIS DP WORD
042394,000109: # IMMEDIATELY AFTER STORING THE OTHERS IN THE SNAPSHOT BUFFER.
042395,000110: # 6. ALL LISTS ARE COMBINATIONS OF CODED ERASABLE ADDRESS CONSTANTS
042396,000111: # CREATED FOR THE DOWNLIST PROGRAM.
042397,000112: # A. 1DNADR 1-WORD DOWNLIST ADDRESS.
042398,000113: # SAME AS ECADR, BUT USED WHEN THE WORD ADDRESSED IS THE LEFT
042399,000114: # HALF OF A DOUBLE-PRECISION WORD FOR DOWN TELEMETRY.
042400,000115: # B. 2DNADR - 6DNADR N-WORD DOWNLIST ADDRESS, N = 2 - 6.
042401,000116: # SAME AS 1DNADR, BUT WITH THE 4 UNUSED BITS OF THE ECADR FORMAT
042402,000117: # FILLED IN WITH 0001-0101. USED TO POINT TO A LIST OF N DOUBLE-
042403,000118: # PRECISION WORDS, STORED CONSECUTIVELY, FOR DOWN TELEMETRY.
042404,000119: # C. DNCHAN DOWNLIST CHANNEL ADDRESS.
042405,000120: # SAME AS 1DNADR, BUT WITH PREFIX BITS 0111. USED TO POINT TO
042406,000121: # A PAIR OF CHANNELS FOR DOWN TELEMETRY.
042407,000122: # D. DNPTR DOWN TELEMETRY SUBLIST POINTER.
042408,000123: # SAME AS CAF BUT TAGGED AS A CONSTANT. USED IN CONTROL LIST TO POINT TO A SUBLIST.
042409,000124: # CAUTION --- A DNPTR CANNOT BE USED IN A SUBLIST.
042410,000125: # 7. THE WORD ORDER CODE IS SET TO ZERO AT THE BEGINNING OF EACH DOWNLIST (I.E. CONTROL LIST) AND WHEN
042411,000126: # A '1DNADR TIME2' IS DETECTED IN THE CONTROL LIST (ONLY).
042412,000127: # 8. IN THE SNAPSHOT SUBLIST ONLY, THE DNADR'S CANNOT POINT TO THE FIRST WORD OF ANY EBANK.
042413,000128:
042414,000129: # DOWNLINK LIST RESTRICTIONS:
042415,000130: # (THE FOLLOWING POINTS MAY BE LISTED ELSEWHERE BUT ARE LISTED HERE SO IT IS CLEAR THAT THESE THINGS CANNOT BE
042416,000131: # DONE)
042417,000132: # 1. SNAPSHOT DOWNLIST:
042418,000133: # (A) CANNOT CONTAIN THE FOLLOWING ECADRS (I.E. 1DNADR'S): 0, 400, 1000, 1400, 2000, 2400, 3000, 3400.
042419,000134: # (B) CAN CONTAIN ONLY 1DNADR'S
042420,000135: # 2. ALL DOWNLINKED DATA (EXCEPT CHANNELS) IS PICKED UP BY A <DCA<SO DOWNLINK LISTS CANNOT CONTAIN THE
042421,000136: # EQUIVALENT OF THE FOLLOWING ECADRS (I.E. IDNADRS): 377, 777, 1377, 1777, 2377, 27777, 3377, 3777.
042422,000137: # (NOTE: THE TERM EQUIVALENT ' MEANT THAT THE IDNADR TO 6DNADR WILL BE PROCESSED LIKE 1 TO 6 ECADRS)
042423,000138: # 3. CONTROL LISTS AND SUBLISTS CANNOT HAVE ENTRIES = OCTAL 00000 OR OCTAL 77777
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042425,000140: # 4. THE '1DNADR TIME2' WHICH WILL CAUSE THE DOWNLINK PROGRAM TO SET THE WORDER CODE TO 3 MUST APPEAR IN THE
042426,000141: # CONTROL SECTION OF THE DOWNLIST.
042427,000142: # 5. 'DNCHAN 0' CANNOT BE USED.
042428,000143: # 6. 'DNPTR 0' CANNOT BE USED.
042429,000144: # 7. DNPTR CANNOT APPEAR IN A SUBLIST.
042430,000145:
042431,000146: # EBANK SETTINGS
042432,000147: # IN THE PROCESS OF SETTING THE EBANK (WHEN PICKING UP DOWNLINK DATA) THE DOWN TELEMETRY PROGRAM PUTS
042433,000148: # 'GARBAGE' INTO BITS15-12 OF EBANK. HUGH BLAIR-SMITH WARNS US THAT BITS15-12 OF EBANK MAY BECOME
042434,000149: # SIGNIFICANT SOMEDAY IN THE FUTURE. IF/WHEN THAT HAPPENS, THE PROGRAM SHOULD INSURE (BY MASKING ETC.)
042435,000150: # THAT BITS 15-12 OF EBANK ARE ZERO.
042436,000151:
042437,000152: # INITIALIZATION REQUIRED - TO INTERRUPT CURRENT LIST AND START A NEW ONE..
042438,000153: # 1. ADRES OF DOWNLINK LIST INTO DNLSTADR
042439,000154: # 2. NEGONE INTO SUBLIST
042440,000155: # 3. NEGONE INTO DNECADR
042441,000156:
042442,000157: 22,3711 BANK 22
042443,000158: 05,2000 SETLOC DOWNTELM
042444,000159: 05,2000 BANK
042445,000160:
042446,000161: 05,3506 0340 EBANK= DNTMBUFF
042447,000162:
042448,000163: 05,3506 COUNT* $$/DPROG
042449,000164: 05,3506 54016 DODOWNTM TS BANKRUPT
042450,000165: 05,3507 00006 EXTEND
042451,000166: 05,3510 22012 QXCH QRUPT # SAVE Q
042452,000167: 05,3511 13763 TCF WOTEST
042453,000168: 05,3512 00006 WO1 EXTEND # SET WORD ORDER BIT TO 1 ONLY IF IT
042454,000169: 05,3513 05013 WOR CHAN13 # ALREADY ISN'T.
042455,000170: 05,3514 00335 TC DNTMGOTO # GOTO APPROPRIATE PHASE OF PROGRAM
042456,000171:
042457,000172: 05,3515 37747 DNPHASE1 CA NEGONE # INITIALIZE ALL CONTROL WORDS
042458,000173: 05,3516 54337 TS SUBLIST # WORDS TO MINUS ONE
042459,000174: 05,3517 54336 TS DNECADR
042460,000175: 05,3520 33640 CA LDNPHAS2 # SET DNTMGOTO =O ALL SUBSEQUENT DOWNRUPTS
042461,000176: 05,3521 54335 TS DNTMGOTO # GO TO DNPHASE2
042462,000177: 05,3522 13536 TCF NEWLIST
042463,000178: 05,3523 10336 DNPHASE2 CCS DNECADR # SENDING OF DATA IN PROGRESS
042464,000179: 05,3524 03653 DODNADR TC FETCH2WD # YES - THEN FETCH THE NEXT 2 SP WORDS
042465,000180: 05,3525 77753 MINTIME2 -1DNADR TIME2 # NEGATIVE OF TIME2 1DNADR
042466,000181: 05,3526 13527 TCF +1 # (ECADR OF 3776 + 74001 = 77777)
042467,000182:
042468,000183: 05,3527 10337 CCS SUBLIST # IS THE SUBLIST IN CONTROL
042469,000184: 05,3530 13666 TCF NEXTINSL # YES
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042471,000186: 05,3531 74001 DNADRDCR OCT 74001 # DNADR COUNT AND ECADR DECREMENTER
042472,000187:
042473,000188: 05,3532 30334 CHKLIST CA CTLIST
042474,000189: 05,3533 00006 EXTEND
042475,000190: 05,3534 63536 BZMF NEWLIST # IT WILL BE NEGATIVE AT END OF LIST
042476,000191: 05,3535 13543 TCF NEXTINCL
042477,000192: 05,3536 50332 NEWLIST INDEX DNLSTCOD
042478,000193: 05,3537 32441 CA DNTABLE # INITIALIZE CTLIST WITH
042479,000194: 05,3540 54334 TS CTLIST # STARTING ADDRESS OF NEW LIST
042480,000195: 05,3541 40332 CS DNLSTCOD
042481,000196: 05,3542 13756 TCF SENDID +3
042482,000197: 05,3543 50334 NEXTINCL INDEX CTLIST
042483,000198: 05,3544 30000 CA 0
042484,000199: 05,3545 10000 CCS A
042485,000200: 05,3546 24334 INCR CTLIST # SET POINTER TO PICK UP NEXT CTLIST WORD
042486,000201: 05,3547 13553 TCF +4 # ON NEXT ENTRY TO PROG. (A SHOULD NOT =0)
042487,000202: 05,3550 56334 XCH CTLIST # SET CTLIST TO NEGATIVE AND PLACE(CODING)
042488,000203: 05,3551 40000 COM # UNCOMPLEMENTED DNADR INTO A. (FOR LA)
042489,000204: 05,3552 56334 XCH CTLIST # (ST IN )
042490,000205: 05,3553 24000 +4 INCR A # (CTLIST)
042491,000206: 05,3554 54336 TS DNECADR # SAVE DNADR
042492,000207: 05,3555 63525 AD MINTIME2 # TEST FOR TIME2 (NEG. OF ECADR)
042493,000208: 05,3556 10000 CCS A
042494,000209: 05,3557 13563 TCF SETWO +1 # DON'T SET WORD ORDER CODE
042495,000210: 05,3560 47777 MINB1314 OCT 47777 # MINUS BIT 13 AND 14 (CAN'T GET HERE)
042496,000211: 05,3561 13563 TCF SETWO +1 # DON'T SET WORD ORDER CODE
042497,000212: 05,3562 03605 SETWO TC WOZERO # GO SET WORD ORDER CODE TO ZERO.
042498,000213: 05,3563 30336 +1 CA DNECADR # RELOAD A WITH THE DNADR.
042499,000214: 05,3564 63560 +2 AD MINB1314 # IS THIS A REGULAR DNADR?
042500,000215: 05,3565 00006 EXTEND
042501,000216: 05,3566 63653 BZMF FETCH2WD # YES. (A MUST NEVER BE ZERO)
042502,000217: 05,3567 67741 AD MINB12 # NO- IS IT A POINTER (DNPTR) OR A
042503,000218: 05,3570 00006 EXTEND # CHANNEL(DNCHAN)
042504,000219: 05,3571 63611 BZMF DODNPTR # IT'S A POINTER. (A MUST NEVER BE ZERO)
042505,000220:
042506,000221: 05,3572 00006 DODNCHAN TC 6 # (EXECUTED AS EXTEND) IT S A CHANNEL
042507,000222: 05,3573 50336 INDEX DNECADR
042508,000223: 05,3574 44000 INDEX 0 -4000 # (EXECUTED AS READ)
042509,000224: 05,3575 54001 TS L
042510,000225: 05,3576 00006 TC 6 # (EXECUTED AS EXTEND)
042511,000226: 05,3577 50336 INDEX DNECADR
042512,000227: 05,3600 43777 INDEX 0 -4001 # (EXECUTED AS READ)
042513,000228: 05,3601 54336 TS DNECADR # SET DNECADR
042514,000229: 05,3602 37747 CA NEGONE # TO MINUS
042515,000230: 05,3603 56336 XCH DNECADR # WHILE PRESERVING A.
042516,000231: 05,3604 13701 TCF DNTMEXIT # GO SEND CHANNELS
042517,000232:
042518,000233: 05,3605 44745 WOZERO CS BIT7
042519,000234: 05,3606 00006 EXTEND
042520,000235: 05,3607 03013 WAND CHAN13 # SET WORD ORDER CODE TO ZERO
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042522,000237: 05,3610 00002 TC Q # RETURN TO CALLER
042523,000238:
042524,000239: 05,3611 50336 DODNPTR INDEX DNECADR # DNECADR CONTAINS ADRES OF SUBLIST
042525,000240: 05,3612 00000 0 0 # CLEAR AND ADD LIST ENTRY INTO A.
042526,000241: 05,3613 10000 CCS A # IS THIS A SNAPSHOT SUBLIST
042527,000242: 05,3614 30336 CA DNECADR # NO, IT IS A REGULAR SUBLIST.
042528,000243: 05,3615 13665 TCF DOSUBLST # A MUST NOT BE ZERO.
042529,000244:
042530,000245: 05,3616 56336 XCH DNECADR # YES, IT IS A SNAPSHOT SUBLIST.
042531,000246: 05,3617 54337 TS SUBLIST # C(DNECADR) INTO SUBLIST
042532,000247: 05,3620 34755 CAF ZERO # A INTO A
042533,000248: 05,3621 56336 XCH TMINDEX # (NOTE.. TMINDEX = DNECADR)
042534,000249:
042535,000250: # THE FOLLOWING CODING (FROM SNAPLOOP TO SNAPEND) IS FOR THE PURPOSE OF TAKING A SNAPSHOT OF 12 DP REGISTERS.
042536,000251: # THIS IS DONE BY SAVING 11 DP REGISTERS IN DNTMBUFF AND SENDING THE FIRST DP WORD IMMEDIATELY.
042537,000252: # THE SNAPSHOT PROCESSING IS THE MOST TIME CONSUMING AND THEREFORE THE CODING AND LIST STRUCTURE WERE DESIGNED
042538,000253: # TO MINIMIZE TIME. THE TIME OPTIMIZATION RESULTS IN RULES UNIQUE TO THE SNAPSHOT PORTION OF THE DOWNLIST.
042539,000254: # THESE RULES ARE ......
042540,000255: # 1. ONLY 1DNADR'S CAN APPEAR IN THE SNAPSHOT SUBLIST
042541,000256: # 2. THE 1DNADR'S CANNOT REFER TO THE FIRST LOCATION IN ANY BANK.
042542,000257:
042543,000258: 05,3622 54003 SNAPLOOP TS EBANK # SET EBANK
042544,000259: 05,3623 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
042545,000260: 05,3624 00006 EXTEND
042546,000261: 05,3625 50000 INDEX A
042547,000262: 05,3626 E3,1401 EBANK= 1401
042548,000263: 05,3626 31402 DCA 1401 # PICK UP 2 SNAPSHOT WORDS.
042549,000264: 05,3627 0340 EBANK= DNTMBUFF
042550,000265: 05,3627 50336 INDEX TMINDEX
042551,000266: 05,3630 52341 DXCH DNTMBUFF # STORE 2 SNAPSHOT WORDS IN BUFFER
042552,000267: 05,3631 24336 INCR TMINDEX # SET BUFFER INDEX FOR NEXT 2 WORDS.
042553,000268: 05,3632 24336 INCR TMINDEX
042554,000269: 05,3633 24337 SNAPAGN INCR SUBLIST # SET POINTER TO NEXT 2 WORDS OF SNAPSHOT
042555,000270: 05,3634 50337 INDEX SUBLIST
042556,000271: 05,3635 00000 0 0 # = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
042557,000272: 05,3636 10000 CCS A # TEST FOR LAST TWO WORDS OF SNAPSHOT.
042558,000273: 05,3637 13622 TCF SNAPLOOP # NOT LAST TWO.
042559,000274: 05,3640 03523 LDNPHAS2 GENADR DNPHASE2
042560,000275: 05,3641 54337 TS SUBLIST # YES, LAST. SAVE A.
042561,000276: 05,3642 37747 CA NEGONE # SET DNECADR AND
042562,000277: 05,3643 54336 TS DNECADR # SUBLIST POINTERS
042563,000278: 05,3644 56337 XCH SUBLIST # TO NEGATIVE VALUES.
042564,000279: 05,3645 54003 TS EBANK
042565,000280: 05,3646 74357 MASK LOW8
042566,000281: 05,3647 00006 EXTEND
042567,000282: 05,3650 50000 INDEX A
042568,000283: 05,3651 E3,1401 EBANK= 1401
042569,000284: 05,3651 31402 DCA 1401 # PICK UP FIRST 2 WORDS OF SNAPSHOT.
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042571,000286: 05,3652 0340 EBANK= DNTMBUFF
042572,000287: 05,3652 13701 SNAPEND TCF DNTMEXIT # NOW GO SEND THEM.
042573,000288:
042574,000289: 05,3653 30336 FETCH2WD CA DNECADR
042575,000290: 05,3654 54003 TS EBANK # SET EBANK
042576,000291: 05,3655 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
042577,000292: 05,3656 54001 TS L
042578,000293: 05,3657 33531 CA DNADRDCR # DECREMENT COUNT AND ECADR
042579,000294: 05,3660 26336 ADS DNECADR
042580,000295: 05,3661 00006 EXTEND
042581,000296: 05,3662 50001 INDEX L
042582,000297: 05,3663 E3,1400 EBANK= 1400
042583,000298: 05,3663 31401 DCA 1400 # PICK UP 2 DATA WORDS
042584,000299: 05,3664 0340 EBANK= DNTMBUFF
042585,000300: 05,3664 13701 TCF DNTMEXIT # NOW GO SEND THEM.
042586,000301:
042587,000302: 05,3665 54337 DOSUBLST TS SUBLIST # SET SUBLIST POINTER
042588,000303: 05,3666 50337 NEXTINSL INDEX SUBLIST
042589,000304: 05,3667 00000 0 0 # = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
042590,000305: 05,3670 10000 CCS A # IS IT THE END OF THE SUBLIST
042591,000306: 05,3671 24337 INCR SUBLIST # NO -
042592,000307: 05,3672 13676 TCF +4
042593,000308: 05,3673 54337 TS SUBLIST # SAVE A.
042594,000309: 05,3674 37747 CA NEGONE # SET SUBLIST TO MINUS
042595,000310: 05,3675 56337 XCH SUBLIST # RETRIEVE A.
042596,000311: 05,3676 24000 +4 INCR A
042597,000312: 05,3677 54336 TS DNECADR # SAVE DNADR
042598,000313: 05,3700 13564 TCF SETWO +2 # GO USE COMMON CODING (PROBLEMS WOULD
042599,000314: # OCCUR IF THE PROGRAM ENCOUNTERED A
042600,000315: # DNPTR NOW)
042601,000316:
042602,000317: 05,3701 00006 DNTMEXIT EXTEND # DOWN-TELEMETRY EXIT
042603,000318: 05,3702 01034 WRITE DNTM1 # TO SEND A + L TO CHANNELS 34 + 35
042604,000319: 05,3703 30001 CA L # RESPECTIVELY
042605,000320: 05,3704 00006 TMEXITL EXTEND
042606,000321: 05,3705 01035 WRITE DNTM2
042607,000322: 05,3706 15270 TMRESUME TCF RESUME # EXIT TELEMETRY PROGRAM VIA RESUME.
042608,000323:
042609,000324: 05,3707 7741 MINB12 EQUALS -1/8
042610,000325: 05,3707 0336 DNECADR EQUALS TMINDEX
042611,000326: 05,3707 0334 CTLIST EQUALS LDATALST
042612,000327: 05,3707 0337 SUBLIST EQUALS DNQ
042613,000328:
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Page 995 |
042615,000330: # SUBROUTINE NAME - DNDUMP
042616,000331:
042617,000332: # FUNCTIONAL DESCRIPTION - TO SEND (DUMP) ALL ERASABLE STORAGE 'N' TIMES. (N=1 TO 4). BANKS ARE SENT ONE AT A TIME
042618,000333: # EACH BANK IS PRECEEDED BY AN ID WORD, SYNCH BITS, ECADR AND TIME1 FOLLOWED BY THE 256D WORDS OF EACH
042619,000334: # EBANK. EBANKS ARE DUMPED IN ORDER (I.E. EBANK 0 FIRST, THEN EBANK1 ETC.)
042620,000335:
042621,000336: # CALLING SEQUENCE - THE GROUND OR ASTRONAUT BY KEYING V74E CAN INITIALIZE THE DUMP.
042622,000337: # AFTER KEYING IN V74E THE CURRENT DOWNLIST WILL BE IMMEDIATELY TERMINATED AND THE DOWNLINK ERASABLE DUMP
042623,000338: # WILL BEGIN.
042624,000339:
042625,000340: # ONCE INITIATED THE DOWNLINK ERASABLE DUMP CAN BE TERMINATED (AND INTERRUPTED DOWNLIST REINSTATED) ONLY
042626,000341: # BY THE FOLLOWING:
042627,000342:
042628,000343: # 1. A FRESH START
042629,000344: # 2. COMPLETION OF ALL DOWNLINK DUMPS REQUESTED (ACCORDING TO BITS SET IN DUMPCNT). NOTE THAT DUMPCNT
042630,000345: # CAN BE ALTERED BY A V21N01.
042631,000346: # 3. AND INVOLUNTARILY BY A RESTART.
042632,000347:
042633,000348: # NORMAL EXIT MODE - TCF DNPHASE1
042634,000349:
042635,000350: # ALARM OR ABORT MODE - NONE
042636,000351:
042637,000352: # *SUBROUTINES CALLED - NONE.
042638,000353:
042639,000354: # ERASABLE INITIALIZATION REQUIRED -
042640,000355: # DUMPCNT OCT 20000 IF 4 COMPLETE ERASABLE DUMPS ARE DESIRED
042641,000356: # DUMPCNT OCT 10000 IF 2 COMPLETE ERASABLE DUMPS ARE DESIRED
042642,000357: # DUMPCNT OCT 04000 IF 1 COMPLETE ERASABLE DUMP IS DESIRED
042643,000358:
042644,000359: # DEBRIS - DUMPLOC, DUMPSW, DNTMGOTO, EBANK AND CENTRAL REGISTERS
042645,000360:
042646,000361: # TIMING - TIME (IN SECS) = ((NO.DUMPS)*(NO.EBANKS)*(WDSPEREBANK + NO.IDWDS)) / NO.WDSPERSEC
042647,000362: # TIME (IN SECS) = ( 4 )*( 8 )*( 256 + 4 ) / 100
042648,000363: # THUS TIME (IN SECS TO SEND DUMP OF ERASABLE 4 TIMES VIA DOWNLINK) = 83.2 SECONDS
042649,000364:
042650,000365: # STRUCTURE OF ONE EBANK AS IT IS SENT BY DOWNLINK PROGRAM -
042651,000366: # (REMINDER - THIS ONLY DESCRIBES ONE OF THE 8 EBANKS X 4 (DUMPS) = 32 EBANKS WHICH WILL BE SENT BY DNDUMP)
042652,000367: # DOWNLIST W
042653,000368: # WORD TAKEN FROM CONTENTS OF EXAMPLE O COMMENTS
042654,000369: # 1 ERASID 0177X 0 DOWNLIST I.D. FOR DOWNLINK ERASABLE DUMP (X=7 CSM, 6 LM)
042655,000370: # 2 LOWIDCOD 77340 1 DOWNLINK SYNCH BITS. (SAME ONE USED IN ALL OTHER DOWNLISTS)
042656,000371: # 3 DUMPLOC 13400 1 (SEE NOTES ON DUMPLOC) 1 = 3RD ERAS DUMP, 3400=ECADR OF 5TH WD
042657,000372: # 4 TIME1 14120 1 TIME IN CENTISECONDS
042658,000373: # 5 FIRST WORD OF EBANK X 03400 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1400 (ECADR 3400)
042659,000374: # 6 2ND WORD OF EBANK X 00142 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1401 (ECADR 3401)
042660,000375: # 7 3RD WORD OF EBANK X 00142 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1402 (ECADR 3402)
042661,000376: # . 1
042662,000377: # . 1
042663,000378: # . 1
042664,000379: # 260D 256TH WORD OF EBANK X 03777 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1777 (ECADR 3777)
042665,000380:
042666,000381: # NOTE - DUMPLOC CONTAINS THE COUNTER AND ECADR FOR EACH WORD BEING SENT.
042667,000382: # THE BIT STRUCTURE OF DUMPLOC IS FOLLOWS---
042668,000383: # X = NOT USED
042669,000384: # X ABC EEE RRRRRRRR ABC = ERASABLE DUMP COUNTER (I.E. ABC = 0,1,2 OR 3 WHICH MEANS THAT
042670,000385: # COMPLETE ERASABLE DUMP NUMBER 1,2,3 OR 4 RESPECTIVELY IS IN PROGRESS)
042671,000386: # EEE = EBANK BITS
042672,000387: # RRRRRRRR = RELATIVE ADDRESS WITHIN AN EBANK.
042673,000388:
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042675,000390: 05,3707 34755 DNDUMPI CA ZERO # INITIALIZE DOWNLINK
042676,000391: 05,3710 54336 TS DUMPLOC # ERASABLE DUMP
042677,000392: 05,3711 03753 +2 TC SENDID # GO SEND ID AND SYNCH BITS
042678,000393: 05,3712 33721 CA LDNDUMP1 # SET DNTMGOTO
042679,000394: 05,3713 54335 TS DNTMGOTO # TO LOCATION FOR NEXT PASS
042680,000395: 05,3714 30025 CA TIME1 # PLACE TIME1
042681,000396: 05,3715 56001 XCH L # INTO L
042682,000397: 05,3716 30336 CA DUMPLOC # AND ECADR OF THIS EBANK INTO A
042683,000398: 05,3717 13701 TCF DNTMEXIT # SEND DUMPLOC AND TIME1
042684,000399:
042685,000400: 05,3720 03722 LDNDUMP ADRES DNDUMP
042686,000401: 05,3721 03735 LDNDUMP1 ADRES DNDUMP1
042687,000402:
042688,000403: 05,3722 34752 DNDUMP CA TWO # INCREMENT ECADR IN DUMPLOC
042689,000404: 05,3723 26336 ADS DUMPLOC # TO NEXT DP WORD TO BE
042690,000405: 05,3724 74357 MASK LOW8 # DUMPED AND SAVE IT.
042691,000406: 05,3725 10000 CCS A # IS THIS THE BEGINNING OF A NEW EBANK
042692,000407: 05,3726 13737 TCF DNDUMP2 # NO - THEN CONTINUE DUMPING
042693,000408: 05,3727 30336 CA DUMPLOC # YES - IS THIS THE END OF THE
042694,000409: 05,3730 70333 MASK DUMPCNT # N TH (N = 1 TO 4) COMPLETE ERASABLE
042695,000410: 05,3731 77722 MASK PRIO34 # DUMP (BIT14 FOR 4, BIT13 FOR 2 OR BIT12
042696,000411: 05,3732 10000 CCS A # FOR 1 COMPLETE ERASABLE DUMP(S)).
042697,000412: 05,3733 13515 TCF DNPHASE1 # YES - START SENDING INTERRUPTED DOWNLIST
042698,000413: # AGAIN
042699,000414: 05,3734 13711 TCF DNDUMPI +2 # NO - GO BACK AND INITIALIZE NEXT BANK
042700,000415:
042701,000416: 05,3735 33720 DNDUMP1 CA LDNDUMP # SET DNTMGOTO
042702,000417: 05,3736 54335 TS DNTMGOTO # FOR WORDS 3 TO 256D OF CURRENT EBANK
042703,000418:
042704,000419: 05,3737 30336 DNDUMP2 CA DUMPLOC
042705,000420: 05,3740 54003 TS EBANK # SET EBANK
042706,000421: 05,3741 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS.
042707,000422: 05,3742 54002 TS Q # (NOTE: MASK INSTRUCTION IS USED TO PICK
042708,000423: 05,3743 34754 CA NEG0 # UP ERASABLE REGISTERS SO THAT EDITING
042709,000424: 05,3744 54001 TS L # REGISTERS 20-23 WILL NOT BE ALTERED.)
042710,000425: 05,3745 50002 INDEX Q
042711,000426: 05,3746 E3,1400 EBANK= 1400 # PICK UP LOW ORDER REGISTER OF PAIR
042712,000427: 05,3746 71401 MASK 1401 # OF ERASABLE REGISTERS.
042713,000428: 05,3747 56001 XCH L
042714,000429: 05,3750 50002 INDEX Q # PICK UP HIGH ORDER REGISTER OF PAIR
042715,000430: 05,3751 71400 MASK 1400 # OF ERASABLE REGISTERS.
042716,000431: 05,3752 0340 EBANK= DNTMBUFF
042717,000432: 05,3752 13701 TCF DNTMEXIT # GO SEND THEM
042718,000433:
042719,000434: 05,3753 00006 SENDID EXTEND # ** ENTRANCE USED BY ERASABLE DUMP PROG.**
042720,000435: 05,3754 22335 QXCH DNTMGOTO # SET DNTMGOTO SO NEXT TIME PROG WILL GO
042721,000436: 05,3755 35011 CAF ERASID # TO LOCATION FOLLOWING :TC SENDID:
042722,000437:
042723,000438: 05,3756 54001 TS L # ** ENTRANCE USED BY REGULAR DOWNLINK PG **
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Page 997 |
042725,000440: 05,3757 03605 TC WOZERO # GO SET WORD ORDER CODE TO ZERO
042726,000441: 05,3760 32065 CAF LOWIDCOD # PLACE SPECIAL ID CODE INTO L
042727,000442: 05,3761 56001 XCH L # AND ID BACK INTO A
042728,000443: 05,3762 13701 TCF DNTMEXIT # SEND DOWNLIST ID CODE(S).
042729,000444:
042730,000445: 05,3763 34745 WOTEST CA BIT7 # AT THE BEGINNING OF THE LIST THE WORD
042731,000446: 05,3764 00006 EXTEND # ORDER BIT WILL BE SET BACK TO ZERO
042732,000447: 05,3765 02013 RAND CHAN13
042733,000448: 05,3766 10000 CCS A
042734,000449: 05,3767 00335 TC DNTMGOTO
042735,000450: 05,3770 34745 CA BIT7
042736,000451: 05,3771 13512 TCF WO1
042737,000452:
End of include-file DOWN-TELEMETRY_PROGRAM.agc. Parent file is MAIN.agc