Source Code
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These source-code files were transcribed from a printout in Don Eyles's personal
collection, scanned by archive.org, and financially sponsored by Linden Sims.
A team of volunteers performed the transcription and proof-reading. The scanned
page images are available at
the Virtual AGC Project website, as well as higher-quality (but much larger)
images at
the Virtual AGC Project's collection in the Internet Archive. Report any problems by creating
"issues" at
the Virtual AGC Project's GitHub Repository. Notations on the program listing read, in part: GAP: ASSEMBLE REVISION 56 OF AGC PROGRAM ZERLINA BY ZOROASTER 9:12 OCT. 21,1970Note that the date is the date of the printout, not the date of the program revision. |
043759,000002: ## Copyright: Public domain.
043760,000003: ## Filename: DOWN-TELEMETRY_PROGRAM.agc
043761,000004: ## Purpose: A log section of Zerlina 56, the final revision of
043762,000005: ## Don Eyles's offline development program for the variable
043763,000006: ## guidance period servicer. It also includes a new P66 with LPD
043764,000007: ## (Landing Point Designator) capability, based on an idea of John
043765,000008: ## Young's. Neither of these advanced features were actually flown,
043766,000009: ## but Zerlina was also the birthplace of other big improvements to
043767,000010: ## Luminary including the terrain model and new (Luminary 1E)
043768,000011: ## analog display programs. Zerlina was branched off of Luminary 145,
043769,000012: ## and revision 56 includes all changes up to and including Luminary
043770,000013: ## 183. It is therefore quite close to the Apollo 14 program,
043771,000014: ## Luminary 178, where not modified with new features.
043772,000015: ## Reference: pp. 979-988
043773,000016: ## Assembler: yaYUL
043774,000017: ## Contact: Ron Burkey <info@sandroid.org>.
043775,000018: ## Website: www.ibiblio.org/apollo/index.html
043776,000019: ## Mod history: 2017-07-28 MAS Created from Luminary 210.
043777,000020: ## 2017-08-27 MAS Updated for Zerlina 56.
043778,000021:
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Page 979 |
043780,000023: # PROGRAM NAME- DOWN TELEMETRY PROGRAM
043781,000024: # MOD NO.- 0 TO COMPLETELY REWRITE THE DOWN TELEMETRY PROGRAM AND DOWNLINK ERASABLE DUMP PROGRAM FOR THE
043782,000025: # PURPOSE OF SAVING APPROXIMATELY 150 WORDS OF CORE STORAGE.
043783,000026: # THIS CHANGE REQUIRES AN ENTIRELY NEW METHOD OF SPECIFYING DOWNLINK LISTS.REFER TO DOWNLINK
043784,000027: # LISTS LOG SECTION FOR MORE DETAILS. HOWEVER THIS CHANGE WILL NOT AFFECT THE GROUND PROCESSING
043785,000028: # OF DOWN TELEMETRY DATA.
043786,000029: # MOD BY- KILROY, SMITH, DEWITT
043787,000030: # DATE- 02OCT67
043788,000031: # AUTHORS- KILROY, SMITH, DEWITT, DEWOLF, FAGIN
043789,000032: # LOG SECTION- DOWN-TELEMETRY PROGRAM
043790,000033: # FUNCTIONAL DESCRIPTION- THIS ROUTINE IS INITIATED BY TELEMETRY END
043791,000034: # PULSE FROM THE DOWNLINK TELEMETRY CONVERTER. THIS PULSE OCCURS
043792,000035: # AT 50 TIMES PER SEC(EVERY 20 MS) THEREFORE DODOWNTM IS
043793,000036: # EXECUTED AT THESE RATES. THIS ROUTINE SELECTS THE APPROPRIATE
043794,000037: # AGC DATA TO BE TRANSMITTED DOWNLINK AND LOADS IT INTO OUTPUT
043795,000038: # CHANNELS 34 AND 35. THE INFORMATION IS THEN GATED OUT FROM THE
043796,000039: # LGC IN SERIAL FASHION.
043797,000040: # THIS PROGRAM IS CODED FOR A 2 SECOND DOWNLIST. SINCE DOWNRUPTS
043798,000041: # OCCUR EVERY 20MS AND 2 AGC COMPUTER WORDS CAN BE PLACED IN
043799,000042: # CHANNELS 34 AND 35 DURING EACH DOWNRUPT THE PROGRAM IS CAPABLE
043800,000043: # OF SENDING 200 AGC WORDS EVERY 2 SECONDS.
043801,000044: # CALLING SEQUENCE- NONE
043802,000045: # PROGRAM IS ENTERED VIA TCF DODOWNTM WHICH IS EXECUTED AS A
043803,000046: # RESULT OF A DOWNRUPT. CONTROL IS RETURNED VIA TCF RESUME WHICH
043804,000047: # IN EFFECT IS A RESUME.
043805,000048: # SUBROUTINES CALLED- NONE
043806,000049: # NORMAL EXIT MODE- TCF RESUME
043807,000050: # ALARM OR ABORT EXIT MODE- NONE
043808,000051: # RESTART PROTECTION:
043809,000052: # ON A FRESH START AND RESTART THE 'STARTSUB' SUBROUTINE WILL INITIALIZE THE DOWNLIST POINTER(ACTUALLY
043810,000053: # DNTMGOTO) TO THE BEGINNING OF THE CURRENT DOWNLIST(I.E. CURRENT CONTENTS OF DNLSTADR). THIS HAS THE
043811,000054: # EFFECT OF IGNORING THE REMAINDER OF THE DOWNLIST WHICH THE DOWN-TELEMETRY PROGRAM WAS WORKING ON WHEN
043812,000055: # THE RESTART(OR FRESH START) OCCURRED AND RESUME DOWN TELEMETRY FROM THE BEGINNING OF THE CURRENT
043813,000056: # DOWNLIST.
043814,000057: # ALSO OF INTEREST IS THE FACT THAT ON A RESTART THE AGC WILL ZERO DOWNLINK CHANNELS 13, 34 AND 35.
043815,000058: # DOWNLINK LIST SELECTION:
043816,000059: # THE APPROPRIATE DOWNLINK LISTS ARE SELECTED BY THE FOLLOWING:
043817,000060: # 1. FRESH START
043818,000061: # 2. V37EXXE WHERE XX = THE MAJOR MODE BEING SELECTED.
043819,000062: # 3. UPDATE PROGRAM(P27)
043820,000063: # 4. NON-V37 SELECTABLE TYPE PROGRAMS(E.G. AGS INITIALIZATION(SUNDANCE,LUMINARY) AND P61-P62
043821,000064: # TRANSITION(COLOSSUS) ETC.).
043822,000065: # DOWNLINK LIST RULES AND LIMITATIONS:
043823,000066: # READ SECTION(S) WHICH FOLLOW 'DEBRIS' WRITEUP.
043824,000067: # OUTPUT- EVERY 2 SECONDS 100 DOUBLE PRECISION WORDS(I.E. 200 LGC
043825,000068: # COMPUTER WORDS) ARE TRANSMITTED VIA DOWNLINK.
043826,000069: # ERASABLE INITIALIZATION REQUIRED- NONE
043827,000070: # 'DNTMGOTO' AND 'DNLSTADR' ARE INITIALIZED BY THE FRESH START PROGRAM.
043828,000071: # DEBRIS(ERASABLE LOCATIONS DESTROYED BY THIS PROGRAM)-
043829,000072: # LDATALST,DNTMBUFF TO DNTMBUFF +21D,TMINDEX,DNQ.
043830,000073:
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Page 980 |
043832,000075:
043833,000076:
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Page 981 |
043835,000078: # DODOWNTM IS ENTERED EVERY 20 MS BY AN INTERRUPT TRIGGERED BY THE
043836,000079: # RECEIPT OF AN ENDPULSE FROM THE SPACECRAFT TELEMETRY PROGRAMMER.
043837,000080:
043838,000081: # NOTES REGARDING DOWNLINK LISTS ASSOCIATED WITH THIS PROGRAM:
043839,000082: # 1. DOWNLISTS. - DOWNLISTS MUST BE COMPILED IN THE SAME BANK AS THE
043840,000083: # DOWN-TELEMETRY PROGRAM. THIS IS DONE FOR EASE OF CODING, FASTER
043841,000084: # EXECUTION.
043842,000085: # 2. EACH DOWNLINK LIST CONSISTS OF A CONTROL LIST AND A NUMBER OF
043843,000086: # SUBLISTS.
043844,000087: # 3. A SUBLIST REFERS TO A SNAPSHOT OR DATA COMMON TO THE SAME OR OTHER
043845,000088: # DOWNLINK LISTS. ANY SUBLIST CONTAINING COMMON DATA NEEDS TO BE
043846,000089: # CODED ONLY ONCE FOR THE APPLICABLE DOWNLINK LISTS.
043847,000090: # 4. SNAPSHOT SUBLISTS REFER SPECIFICALLY TO HOMOGENOUS DATA WHICH MUST BE
043848,000091: # SAVED IN A BUFFER DURING ONE DOWNRUPT.
043849,000092: # 5. THE 1DNADR FOR THE 1ST WORD OF SNAPSHOT DATA IS FOUND AT THE END
043850,000093: # OF EACH SNAPSHOT SUBLIST, SINCE THE PROGRAM CODING SENDS THIS DP WORD
043851,000094: # IMMEDIATELY AFTER STORING THE OTHERS IN THE SNAPSHOT BUFFER.
043852,000095: # 6. ALL LISTS ARE COMBINATIONS OF CODED ERASABLE ADDRESS CONSTANTS
043853,000096: # CREATED FOR THE DOWNLIST PROGRAM.
043854,000097: # A. 1DNADR 1-WORD DOWNLIST ADDRESS.
043855,000098: # SAME AS ECADR, BUT USED WHEN THE WORD ADDRESSED IS THE LEFT
043856,000099: # HALF OF A DOUBLE-PRECISION WORD FOR DOWN TELEMETRY.
043857,000100: # B. 2DNADR - 6DNADR N-WORD DOWNLIST ADDRESS, N = 2 - 6.
043858,000101: # SAME AS 1DNADR, BUT WITH THE 4 UNUSED BITS OF THE ECADR FORMAT
043859,000102: # FILLED IN WITH 0001-0101. USED TO POINT TO A LIST OF N DOUBLE-
043860,000103: # PRECISION WORDS, STORED CONSECUTIVELY, FOR DOWN TELEMETRY.
043861,000104: # C. DNCHAN DOWNLIST CHANNEL ADDRESS.
043862,000105: # SAME AS 1DNADR, BUT WITH PREFIX BITS 0111. USED TO POINT TO
043863,000106: # A PAIR OF CHANNELS FOR DOWN TELEMETRY.
043864,000107: # D. DNPTR DOWN TELEMETRY SUBLIST POINTER.
043865,000108: # SAME AS CAF BUT TAGGED AS A CONSTANT. USED IN CONTROL LIST TO POINT TO A SUBLIST.
043866,000109: # CAUTION--- A DNPTR CANNOT BE USED IN A SUBLIST.
043867,000110: # 7. THE WORD ORDER CODE IS SET TO ZERO AT THE BEGINNING OF EACH DOWNLIST (I.E. CONTROL LIST) AND WHEN
043868,000111: # A '1DNADR TIME2' IS DETECTED IN THE CONTROL LIST(ONLY).
043869,000112: # 8. IN THE SNAPSHOT SUBLIST ONLY, THE DNADR'S CANNOT POINT TO THE FIRST WORD OF ANY EBANK.
043870,000113:
043871,000114: # DOWNLINK LIST RESTRICTIONS:
043872,000115: # (THE FOLLOWING POINTS MAY BE LISTED ELSEWHERE BUT ARE LISTED HERE SO IT IS CLEAR THAT THESE THINGS CANNOT BE
043873,000116: # DONE)
043874,000117: # 1. SNAPSHOT DOWNLIST:
043875,000118: # (A) CANNOT CONTAIN THE FOLLOWING ECADRS(I.E. 1DNADR'S): 0, 400, 1000, 1400, 2000, 2400, 3000, 3400.
043876,000119: # (B) CAN CONTAIN ONLY 1DNADR'S
043877,000120:
043878,000121: # 2. ALL DOWNLINKED DATA(EXCEPT CHANNELS) IS PICKED UP BY A <DCA<SO DOWNLINK LISTS CANNOT CONTAIN THE
043879,000122: # EQUIVALENT OF THE FOLLOWING ECADRS(I.E. IDNADRS): 377, 777, 1377, 1777, 2377, 27777, 3377, 3777.
043880,000123:
043881,000124: # (NOTE: THE TERM EQUIVALENT ' MEANT THAT THE IDNADR TO 6DNADR WILL BE PROCESSED LIKE 1 TO 6 ECADRS)
043882,000125:
043883,000126: # 3. CONTROL LISTS AND SUBLISTS CANNOT HAVE ENTRIES = OCTAL 00000 OR OCTAL 77777
043884,000127:
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043886,000129: # 4. THE '1DNADR TIME2' WHICH WILL CAUSE THE DOWNLINK PROGRAM TO SET THE WORDER CODE TO 3 MUST APPEAR IN THE
043887,000130: # CONTROL SECTION OF THE DOWNLIST.
043888,000131:
043889,000132: # 5. 'DNCHAN 0' CANNOT BE USED.
043890,000133:
043891,000134: # 6. 'DNPTR 0' CANNOT BE USED.
043892,000135:
043893,000136: # 7. DNPTR CANNOT APPEAR IN A SUBLIST.
043894,000137:
043895,000138:
043896,000139:
043897,000140:
043898,000141: # EBANK SETTINGS
043899,000142: # IN THE PROCESS OF SETTING THE EBANK(WHEN PICKING UP DOWNLINK DATA) THE DOWN TELEMETRY PROGRAM PUTS
043900,000143: # 'GARBAGE' INTO BITS15-12 OF EBANK. HUGH BLAIR-SMITH WARNS US THAT BITS15-12 OF EBANK MAY BECOME
043901,000144: # SIGNIFICANT SOMEDAY IN THE FUTURE. IF/WHEN THAT HAPPENS, THE PROGRAM SHOULD INSURE(BY MASKING ETC.)
043902,000145: # THAT BITS15-12 OF EBANK ARE ZERO.
043903,000146: # INITIALIZATION REQUIRED- TO INTERRUPT CURRENT LIST AND START A NEW ONE..
043904,000147: # 1. ADRES OF DOWNLINK LIST INTO DNLSTADR
043905,000148: # 2. NEGONE INTO SUBLIST
043906,000149: # 3. NEGONE INTO DNECADR
043907,000150:
043908,000151: 22,3663 BANK 22
043909,000152: 05,2000 SETLOC DOWNTELM
043910,000153: 05,2000 BANK
043911,000154:
043912,000155: 05,3507 0340 EBANK= DNTMBUFF
043913,000156:
043914,000157: 05,3507 COUNT* $$/DPROG
043915,000158: 05,3507 54016 DODOWNTM TS BANKRUPT
043916,000159: 05,3510 00006 EXTEND
043917,000160: 05,3511 22012 QXCH QRUPT # SAVE Q
043918,000161: 05,3512 34745 CA BIT7 # AT THE BEGINNING OF THE LIST THE WORD
043919,000162: 05,3513 00006 EXTEND # ORDER BIT WILL BE SET BACK TO ZERO.
043920,000163: 05,3514 02013 RAND CHAN13
043921,000164: 05,3515 10000 CCS A
043922,000165: 05,3516 00335 TC DNTMGOTO
043923,000166: 05,3517 06022 TC C13STALL
043924,000167: 05,3520 34745 CA BIT7
043925,000168: 05,3521 00006 EXTEND # SET WORD ORDER BIT TO 1 ONLY IF IT
043926,000169: 05,3522 05013 WOR CHAN13 # ALREADY ISN'T.
043927,000170: 05,3523 00335 TC DNTMGOTO # GO TO APPROPRIATE PHASE OF PROGRAM
043928,000171:
043929,000172: 05,2000 SETLOC DOWNTELM
043930,000173: 05,2000 BANK
043931,000174:
043932,000175: 05,3524 37761 DNPHASE1 CA NEGONE # INITIALIZE ALL CONTROL WORDS
043933,000176: 05,3525 54337 TS SUBLIST # WORDS TO MINUS ONE
043934,000177: 05,3526 54336 TS DNECADR
043935,000178: 05,3527 33654 CA LDNPHAS2 # SET DNTMGOTO =O ALL SUBSEQUENT DOWNRUPTS
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043937,000180: 05,3530 54335 TS DNTMGOTO # GO TO DNPHASE2
043938,000181: 05,3531 13545 TCF NEWLIST
043939,000182: 05,3532 10336 DNPHASE2 CCS DNECADR # SENDING OF DATA IN PROGRESS
043940,000183: 05,3533 03667 DODNADR TC FETCH2WD # YES - THEN FETCH THE NEXT 2 SP WORDS
043941,000184: 05,3534 77753 MINTIME2 -1DNADR TIME2 # NEGATIVE OF TIME2 1DNADR
043942,000185: 05,3535 13536 TCF +1 # (ECADR OF 3776 + 74001 = 77777)
043943,000186:
043944,000187: 05,3536 10337 CCS SUBLIST # IS THE SUBLIST IN CONTROL
043945,000188: 05,3537 13702 TCF NEXTINSL # YES
043946,000189: 05,3540 74001 DNADRDCR OCT 74001 # DNADR COUNT AND ECADR DECREMENTER
043947,000190:
043948,000191: 05,3541 30334 CHKLIST CA CTLIST
043949,000192: 05,3542 00006 EXTEND
043950,000193: 05,3543 63545 BZMF NEWLIST # IT WILL BE NEGATIVE AT END OF LIST
043951,000194: 05,3544 13552 TCF NEXTINCL
043952,000195: 05,3545 50333 NEWLIST INDEX DNLSTCOD
043953,000196: 05,3546 32456 CA DNTABLE # INITIALIZE CTLIST WITH
043954,000197: 05,3547 54334 TS CTLIST # STARTING ADDRESS OF NEW LIST
043955,000198: 05,3550 40333 CS DNLSTCOD
043956,000199: 05,3551 13771 TCF SENDID +3
043957,000200: 05,3552 50334 NEXTINCL INDEX CTLIST
043958,000201: 05,3553 30000 CA 0
043959,000202: 05,3554 10000 CCS A
043960,000203: 05,3555 24334 INCR CTLIST # SET POINTER TO PICK UP NEXT CTLIST WORD
043961,000204: 05,3556 13562 TCF +4 # ON NEXT ENTRY TO PROG. (A SHOULD NOT =0)
043962,000205: 05,3557 56334 XCH CTLIST # SET CTLIST TO NEGATIVE AND PLACE(CODING)
043963,000206: 05,3560 40000 COM # UNCOMPLEMENTED DNADR INTO A. (FOR LA)
043964,000207: 05,3561 56334 XCH CTLIST # (ST IN )
043965,000208: 05,3562 24000 +4 INCR A # (CTLIST)
043966,000209: 05,3563 54336 TS DNECADR # SAVE DNADR
043967,000210: 05,3564 63534 AD MINTIME2 # TEST FOR TIME2 (NEG. OF ECADR)
043968,000211: 05,3565 10000 CCS A
043969,000212: 05,3566 13572 TCF SETWO +1 # DON'T SET WORD ORDER CODE
043970,000213: 05,3567 47777 MINB1314 OCT 47777 # MINUS BIT 13 AND 14 (CAN'T GET HERE)
043971,000214: 05,3570 13572 TCF SETWO +1 # DON'T SET WORD ORDER CODE
043972,000215: 05,3571 03614 SETWO TC WOZERO # GO SET WORD ORDER CODE TO ZERO.
043973,000216: 05,3572 30336 +1 CA DNECADR # RELOAD A WITH THE DNADR.
043974,000217: 05,3573 63567 +2 AD MINB1314 # IS THIS A REGULAR DNADR?
043975,000218: 05,3574 00006 EXTEND
043976,000219: 05,3575 63667 BZMF FETCH2WD # YES. (A MUST NEVER BE ZERO)
043977,000220: 05,3576 67753 AD MINB12 # NO- IS IT A POINTER (DNPTR) OR A
043978,000221: 05,3577 00006 EXTEND # CHANNEL(DNCHAN)
043979,000222: 05,3600 63625 BZMF DODNPTR # IT'S A POINTER. (A MUST NEVER BE ZERO)
043980,000223:
043981,000224: 05,3601 00006 DODNCHAN TC 6 # (EXECUTED AS EXTEND) IT S A CHANNEL
043982,000225: 05,3602 50336 INDEX DNECADR
043983,000226: 05,3603 44000 INDEX 0 -4000 # (EXECUTED AS READ)
043984,000227: 05,3604 54001 TS L
043985,000228: 05,3605 00006 TC 6 # (EXECUTED AS EXTEND)
043986,000229: 05,3606 50336 INDEX DNECADR
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043988,000231: 05,3607 43777 INDEX 0 -4001 # (EXECUTED AS READ)
043989,000232: 05,3610 54336 TS DNECADR # SET DNECADR
043990,000233: 05,3611 37761 CA NEGONE # TO MINUS
043991,000234: 05,3612 56336 XCH DNECADR # WHILE PRESERVING A.
043992,000235: 05,3613 13715 TCF DNTMEXIT # GO SEND CHANNELS
043993,000236:
043994,000237: 05,3614 00006 WOZERO EXTEND
043995,000238: 05,3615 23265 QXCH C13QSAV
043996,000239: 05,3616 22070 LXCH RUPTREG1
043997,000240: 05,3617 06022 TC C13STALL
043998,000241:
043999,000242: 05,3620 22070 LXCH RUPTREG1
044000,000243: 05,3621 44745 CS BIT7
044001,000244: 05,3622 00006 EXTEND
044002,000245: 05,3623 03013 WAND CHAN13 # SET WORD ORDER CODE TO ZERO
044003,000246: 05,3624 01265 TC C13QSAV
044004,000247:
044005,000248: 05,3625 50336 DODNPTR INDEX DNECADR # DNECADR CONTAINS ADRES OF SUBLIST
044006,000249: 05,3626 00000 0 0 # CLEAR AND ADD LIST ENTRY INTO A.
044007,000250: 05,3627 10000 CCS A # IS THIS A SNAPSHOT SUBLIST
044008,000251: 05,3630 30336 CA DNECADR # NO, IT IS A REGULAR SUBLIST.
044009,000252: 05,3631 13701 TCF DOSUBLST # A MUST NOT BE ZERO.
044010,000253:
044011,000254: 05,3632 56336 XCH DNECADR # YES, IT IS A SNAPSHOT SUBLIST.
044012,000255: 05,3633 54337 TS SUBLIST # C(DNECADR) INTO SUBLIST
044013,000256: 05,3634 34755 CAF ZERO # A INTO A
044014,000257: 05,3635 56336 XCH TMINDEX # (NOTE.. TMINDEX = DNECADR)
044015,000258:
044016,000259:
044017,000260: # THE FOLLOWING CODING (FROM SNAPLOOP TO SNAPEND)IS FOR THE PURPOSE OF TAKING A SNAPSHOT OF 12 DP REGISTERS.
044018,000261: # THIS IS DONE BY SAVING 11 DP REGISTERS IN DNTMBUFF AND SENDING THE FIRST DP WORD IMMEDIATELY.
044019,000262: # THE SNAPSHOT PROCESSING IS THE MOST TIME CONSUMING AND THEREFORE THE CODING AND LIST STRUCTURE WERE DESIGNED
044020,000263: # TO MINIMIZE TIME. THE TIME OPTIMIZATION RESULTS IN RULES UNIQUE TO THE SNAPSHOT PORTION OF THE DOWNLIST.
044021,000264: # THESE RULES ARE......
044022,000265: # 1. ONLY 1DNADR'S CAN APPEAR IN THE SNAPSHOT SUBLIST
044023,000266: # 2. THE 1DNADR'S CANNOT REFER TO THE FIRST LOCATION IN ANY BANK.
044024,000267:
044025,000268: 05,3636 54003 SNAPLOOP TS EBANK # SET EBANK
044026,000269: 05,3637 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
044027,000270: 05,3640 00006 EXTEND
044028,000271: 05,3641 50000 INDEX A
044029,000272: 05,3642 E3,1401 EBANK= 1401
044030,000273: 05,3642 31402 DCA 1401 # PICK UP 2 SNAPSHOT WORDS.
044031,000274: 05,3643 0340 EBANK= DNTMBUFF
044032,000275: 05,3643 50336 INDEX TMINDEX
044033,000276: 05,3644 52341 DXCH DNTMBUFF # STORE 2 SNAPSHOT WORDS IN BUFFER
044034,000277: 05,3645 24336 INCR TMINDEX # SET BUFFER INDEX FOR NEXT 2 WORDS.
044035,000278: 05,3646 24336 INCR TMINDEX
044036,000279: 05,3647 24337 SNAPAGN INCR SUBLIST # SET POINTER TO NEXT 2 WORDS OF SNAPSHOT
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044038,000281: 05,3650 50337 INDEX SUBLIST
044039,000282: 05,3651 00000 0 0 # = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
044040,000283: 05,3652 10000 CCS A # TEST FOR LAST TWO WORDS OF SNAPSHOT.
044041,000284: 05,3653 13636 TCF SNAPLOOP # NOT LAST TWO.
044042,000285: 05,3654 03532 LDNPHAS2 GENADR DNPHASE2
044043,000286: 05,3655 54337 TS SUBLIST # YES, LAST. SAVE A.
044044,000287: 05,3656 37761 CA NEGONE # SET DNECADR AND
044045,000288: 05,3657 54336 TS DNECADR # SUBLIST POINTERS
044046,000289: 05,3660 56337 XCH SUBLIST # TO NEGATIVE VALUES.
044047,000290: 05,3661 54003 TS EBANK
044048,000291: 05,3662 74357 MASK LOW8
044049,000292: 05,3663 00006 EXTEND
044050,000293: 05,3664 50000 INDEX A
044051,000294: 05,3665 E3,1401 EBANK= 1401
044052,000295: 05,3665 31402 DCA 1401 # PICK UP FIRST 2 WORDS OF SNAPSHOT.
044053,000296: 05,3666 0340 EBANK= DNTMBUFF
044054,000297: 05,3666 13715 SNAPEND TCF DNTMEXIT # NOW GO SEND THEM.
044055,000298:
044056,000299: 05,3667 30336 FETCH2WD CA DNECADR
044057,000300: 05,3670 54003 TS EBANK # SET EBANK
044058,000301: 05,3671 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
044059,000302: 05,3672 54001 TS L
044060,000303: 05,3673 33540 CA DNADRDCR # DECREMENT COUNT AND ECADR
044061,000304: 05,3674 26336 ADS DNECADR
044062,000305: 05,3675 00006 EXTEND
044063,000306: 05,3676 50001 INDEX L
044064,000307: 05,3677 E3,1400 EBANK= 1400
044065,000308: 05,3677 31401 DCA 1400 # PICK UP 2 DATA WORDS
044066,000309: 05,3700 0340 EBANK= DNTMBUFF
044067,000310: 05,3700 13715 TCF DNTMEXIT # NOW GO SEND THEM.
044068,000311:
044069,000312: 05,3701 54337 DOSUBLST TS SUBLIST # SET SUBLIST POINTER
044070,000313: 05,3702 50337 NEXTINSL INDEX SUBLIST
044071,000314: 05,3703 00000 0 0 # = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
044072,000315: 05,3704 10000 CCS A # IS IT THE END OF THE SUBLIST
044073,000316: 05,3705 24337 INCR SUBLIST # NO-
044074,000317: 05,3706 13712 TCF +4
044075,000318: 05,3707 54337 TS SUBLIST # SAVE A.
044076,000319: 05,3710 37761 CA NEGONE # SET SUBLIST TO MINUS
044077,000320: 05,3711 56337 XCH SUBLIST # RETRIEVE A.
044078,000321: 05,3712 24000 +4 INCR A
044079,000322: 05,3713 54336 TS DNECADR # SAVE DNADR
044080,000323: 05,3714 13573 TCF SETWO +2 # GO USE COMMON CODING(PROBLEMS WOULD
044081,000324: # OCCUR IF THE PROGRAM ENCOUNTERED A
044082,000325: # DNPTR NOW)
044083,000326:
044084,000327: 05,3715 00006 DNTMEXIT EXTEND # DOWN-TELEMETRY EXIT
044085,000328: 05,3716 01034 WRITE DNTM1 # TO SEND A + L TO CHANNELS 34 + 35
044086,000329: 05,3717 30001 CA L # RESPECTIVELY
044087,000330: 05,3720 00006 TMEXITL EXTEND
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Page 986 |
044089,000332: 05,3721 01035 WRITE DNTM2
044090,000333: 05,3722 15301 TMRESUME TCF RESUME # EXIT TELEMETRY PROGRAM VIA RESUME.
044091,000334:
044092,000335: 05,3723 7753 MINB12 EQUALS -1/8
044093,000336:
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Page 987 |
044095,000338: # SUBROUTINE NAME- DNDUMP
044096,000339: # FUNCTIONAL DESCRIPTION - TO SEND (DUMP) ALL 8 BANKS OF ERASABLE STORAGE TWICE. BANKS ARE SENT ONE AT A TIME
044097,000340: # EACH BANK IS PRECEEDED BY AN ID WORD, SYNCH BITS, ECADR AND TIME1 FOLLOWED BY THE 256D WORDS OF EACH
044098,000341: # EBANK. EBANKS ARE DUMPED IN ORDER(I.E. EBANK 0 FIRST, THEN EBANK1 ETC.)
044099,000342: # CALLING SEQUENCE- THE GROUND OR ASTRONAUT BY KEYING V74E CAN INITIALIZE THE DUMP.
044100,000343: # AFTER KEYING IN V74E THE CURRENT DOWNLIST WILL BE IMMEDIATELY TERMINATED AND THE DOWNLINK ERASABLE DUMP
044101,000344: # WILL BEGIN.
044102,000345: # ONCE INITIATED THE DOWNLINK ERASABLE DUMP CAN BE TERMINATED (AND INTERRUPTED DOWNLIST REINSTATED) ONLY
044103,000346: # BY THE FOLLOWING:
044104,000347: # 1. A FRESH START
044105,000348: # 2. COMPLETION OF BOTH COMPLETE DUMPS
044106,000349: # 3. AND INVOLUNTARILY BY A RESTART.
044107,000350: # NORMAL EXIT MODE- TCF DNPHASE1
044108,000351: # ALARM OR ABORT MODE- NONE
044109,000352: # *SUBROUTINES CALLED- NONE.
044110,000353: # ERASABLE INITIALIZATION REQUIRED-
044111,000354: # NONE
044112,000355: # DEBRIS- DUMPLOC, DUMPSW, DNTMGOTO, EBANK AND CENTRAL REGISTERS
044113,000356: # TIMING- TIME(IN SECS) = ((NO.DUMPS)*(NO.EBANKS)* (WDSPEREBANK + NO.IDWDS)) / NO.WDSPERSEC
044114,000357: # TIME(IN SECS) = ( 4 )*( 8 )* ( 256 + 4 ) / 100
044115,000358: # THUS TIME(IN SECS TO SEND DUMP OF ERASABLE 4 TIMES VIA DOWNLINK) = 83.2 SECONDS
044116,000359:
044117,000360: # STRUCTURE OF ONE EBANK AS IT IS SENT BY DOWNLINK PROGRAM-
044118,000361: # (REMINDER-THIS ONLY DESCRIBES ONE OF THE 8 EBANKS X 4 (DUMPS) = 32 EBANKS WHICH WILL BE SENT BY DNDUMP)
044119,000362: # DOWNLIST W
044120,000363: # WORD TAKEN FROM CONTENTS OF EXAMPLE O COMMENTS
044121,000364:
044122,000365: # 1 ERASID 0177X 0 DOWNLIST I.D. FOR DOWNLINK ERASABLE DUMP (X=7 CSM, 6 LM)
044123,000366: # 2 LOWIDCOD 77340 1 DOWNLINK SYNCH BITS.(SAME ONE USED IN ALL OTHER DOWNLISTS)
044124,000367: # 3 DUMPLOC 13400 1 (SEE NOTES ON DUMPLOC)1= 3RD ERAS DUMP, 3400=ECADR OF 5TH WD
044125,000368: # 4 TIME1 14120 1 TIME IN CENTISECONDS
044126,000369: # 5 FIRST WORD OF EBANK X 03400 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1400 (ECADR 3400)
044127,000370: # 6 2ND WORD OF EBANK X 00142 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1401 (ECADR 3401)
044128,000371: # 7 3RD WORD OF EBANK X 00142 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1402 (ECADR 3402)
044129,000372: # . 1
044130,000373: # . 1
044131,000374: # . 1
044132,000375: # 260D 256TH WORD OF EBANK X 03777 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1777 (ECADR 3777)
044133,000376:
044134,000377: # NOTE- DUMPLOC CONTAINS THE COUNTER AND ECADR FOR EACH WORD BEING SENT.
044135,000378: # THE BIT STRUCTURE OF DUMPLOC IS FOLLOWS---
044136,000379: # X = NOT USED
044137,000380: # X ABC EEE RRRRRRRR ABC = ERASABLE DUMP COUNTER(I.E. ABC = 0,1,2 OR 3 WHICH MEANS THAT
044138,000381: # COMPLETE ERASABLE DUMP NUMBER 1,2,3 OR 4 RESPECTIVELY IS IN PROGRESS)
044139,000382: # EEE = EBANK BITS
044140,000383: # RRRRRRRR = RELATIVE ADDRESS WITHIN AN EBANK.
044141,000384:
044142,000385: 05,3723 34755 DNDUMPI CA ZERO # INITIALIZE DOWNLINK
044143,000386: 05,3724 54336 TS DUMPLOC # ERASABLE DUMP
044144,000387: 05,3725 03766 +2 TC SENDID # GO SEND ID AND SYNCH BITS
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Page 988 |
044146,000389: 05,3726 33735 CA LDNDUMP1 # SET DNTMGOTO
044147,000390: 05,3727 54335 TS DNTMGOTO # TO LOCATION FOR NEXT PASS
044148,000391: 05,3730 30025 CA TIME1 # PLACE TIME1
044149,000392: 05,3731 56001 XCH L # INTO L
044150,000393: 05,3732 30336 CA DUMPLOC # AND ECADR OF THIS EBANK INTO A
044151,000394: 05,3733 13715 TCF DNTMEXIT # SEND DUMPLOC AND TIME1
044152,000395:
044153,000396: 05,3734 03736 LDNDUMP ADRES DNDUMP
044154,000397: 05,3735 03750 LDNDUMP1 ADRES DNDUMP1
044155,000398:
044156,000399: 05,3736 34752 DNDUMP CA TWO # INCREMENT ECADR IN DUMPLOC
044157,000400: 05,3737 26336 ADS DUMPLOC # TO NEXT DP WORD TO BE
044158,000401: 05,3740 74357 MASK LOW8 # DUMPED AND SAVE IT.
044159,000402: 05,3741 10000 CCS A # IS THIS THE BEGINNING OF A NEW EBANK
044160,000403: 05,3742 13752 TCF DNDUMP2 # NO- THEN CONTINUE DUMPING
044161,000404: 05,3743 30336 CA DUMPLOC # YES- IS THIS THE END OF THE
044162,000405: 05,3744 74737 MASK BIT13 # SECOND COMPLETE ERASABLE DUMP?
044163,000406: 05,3745 00006 EXTEND
044164,000407: 05,3746 13725 BZF DNDUMPI +2 # NO - GO BACK AND INITIALIZE NEXT BANK
044165,000408: 05,3747 13524 TCF DNPHASE1 # YES - SEND DOWNLIST AGAIN
044166,000409: 05,3750 33734 DNDUMP1 CA LDNDUMP # SET DNTMGOTO
044167,000410: 05,3751 54335 TS DNTMGOTO # FOR WORDS 3 TO 256D OF CURRENT EBANK
044168,000411:
044169,000412: 05,3752 30336 DNDUMP2 CA DUMPLOC
044170,000413: 05,3753 54003 TS EBANK # SET EBANK
044171,000414: 05,3754 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS.
044172,000415: 05,3755 54002 TS Q # (NOTE: MASK INSTRUCTION IS USED TO PICK
044173,000416: 05,3756 34754 CA NEG0 # UP ERASABLE REGISTERS SO THAT EDITING
044174,000417: 05,3757 54001 TS L # REGISTERS 20-23 WILL NOT BE ALTERED.)
044175,000418: 05,3760 50002 INDEX Q
044176,000419: 05,3761 E3,1400 EBANK= 1400 # PICK UP LOW ORDER REGISTER OF PAIR
044177,000420: 05,3761 71401 MASK 1401 # OF ERASABLE REGISTERS.
044178,000421: 05,3762 56001 XCH L
044179,000422: 05,3763 50002 INDEX Q # PICK UP HIGH ORDER REGISTER OF PAIR
044180,000423: 05,3764 71400 MASK 1400 # OF ERASABLE REGISTERS.
044181,000424: 05,3765 0340 EBANK= DNTMBUFF
044182,000425: 05,3765 13715 TCF DNTMEXIT # GO SEND THEM
044183,000426:
044184,000427:
044185,000428: 05,3766 00006 SENDID EXTEND # **ENTRANCE USED BY ERASABLE DUMP PROG.**
044186,000429: 05,3767 22335 QXCH DNTMGOTO # SET DNTMGOTO SO NEXT TIME PROG WILL GO
044187,000430: 05,3770 35011 CAF ERASID # TO LOCATION FOLLOWING :TC SENDID:
044188,000431:
044189,000432: 05,3771 54001 TS L # **ENTRANCE USED BY REGULAR DOWNLINK PG**
044190,000433: 05,3772 03614 TC WOZERO # GO SET WORD ORDER CODE TO ZERO
044191,000434: 05,3773 32065 CAF LOWIDCOD # PLACE SPECIAL ID CODE INTO L
044192,000435: 05,3774 56001 XCH L # AND ID BACK INTO A
044193,000436: 05,3775 13715 TCF DNTMEXIT # SEND DOWNLIST ID CODE(S).
End of include-file DOWN-TELEMETRY_PROGRAM.agc. Parent file is MAIN.agc