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.
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. |
043768,000002: ## Copyright: Public domain.
043769,000003: ## Filename: DOWN-TELEMETRY_PROGRAM.agc
043770,000004: ## Purpose: A log section of Zerlina 56, the final revision of
043771,000005: ## Don Eyles's offline development program for the variable
043772,000006: ## guidance period servicer. It also includes a new P66 with LPD
043773,000007: ## (Landing Point Designator) capability, based on an idea of John
043774,000008: ## Young's. Neither of these advanced features were actually flown,
043775,000009: ## but Zerlina was also the birthplace of other big improvements to
043776,000010: ## Luminary including the terrain model and new (Luminary 1E)
043777,000011: ## analog display programs. Zerlina was branched off of Luminary 145,
043778,000012: ## and revision 56 includes all changes up to and including Luminary
043779,000013: ## 183. It is therefore quite close to the Apollo 14 program,
043780,000014: ## Luminary 178, where not modified with new features.
043781,000015: ## Reference: pp. 979-988
043782,000016: ## Assembler: yaYUL
043783,000017: ## Contact: Ron Burkey <info@sandroid.org>.
043784,000018: ## Website: www.ibiblio.org/apollo/index.html
043785,000019: ## Mod history: 2017-07-28 MAS Created from Luminary 210.
043786,000020: ## 2017-08-27 MAS Updated for Zerlina 56.
043787,000021:
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Page 979 |
043789,000023: # PROGRAM NAME- DOWN TELEMETRY PROGRAM
043790,000024: # MOD NO.- 0 TO COMPLETELY REWRITE THE DOWN TELEMETRY PROGRAM AND DOWNLINK ERASABLE DUMP PROGRAM FOR THE
043791,000025: # PURPOSE OF SAVING APPROXIMATELY 150 WORDS OF CORE STORAGE.
043792,000026: # THIS CHANGE REQUIRES AN ENTIRELY NEW METHOD OF SPECIFYING DOWNLINK LISTS.REFER TO DOWNLINK
043793,000027: # LISTS LOG SECTION FOR MORE DETAILS. HOWEVER THIS CHANGE WILL NOT AFFECT THE GROUND PROCESSING
043794,000028: # OF DOWN TELEMETRY DATA.
043795,000029: # MOD BY- KILROY, SMITH, DEWITT
043796,000030: # DATE- 02OCT67
043797,000031: # AUTHORS- KILROY, SMITH, DEWITT, DEWOLF, FAGIN
043798,000032: # LOG SECTION- DOWN-TELEMETRY PROGRAM
043799,000033: # FUNCTIONAL DESCRIPTION- THIS ROUTINE IS INITIATED BY TELEMETRY END
043800,000034: # PULSE FROM THE DOWNLINK TELEMETRY CONVERTER. THIS PULSE OCCURS
043801,000035: # AT 50 TIMES PER SEC(EVERY 20 MS) THEREFORE DODOWNTM IS
043802,000036: # EXECUTED AT THESE RATES. THIS ROUTINE SELECTS THE APPROPRIATE
043803,000037: # AGC DATA TO BE TRANSMITTED DOWNLINK AND LOADS IT INTO OUTPUT
043804,000038: # CHANNELS 34 AND 35. THE INFORMATION IS THEN GATED OUT FROM THE
043805,000039: # LGC IN SERIAL FASHION.
043806,000040: # THIS PROGRAM IS CODED FOR A 2 SECOND DOWNLIST. SINCE DOWNRUPTS
043807,000041: # OCCUR EVERY 20MS AND 2 AGC COMPUTER WORDS CAN BE PLACED IN
043808,000042: # CHANNELS 34 AND 35 DURING EACH DOWNRUPT THE PROGRAM IS CAPABLE
043809,000043: # OF SENDING 200 AGC WORDS EVERY 2 SECONDS.
043810,000044: # CALLING SEQUENCE- NONE
043811,000045: # PROGRAM IS ENTERED VIA TCF DODOWNTM WHICH IS EXECUTED AS A
043812,000046: # RESULT OF A DOWNRUPT. CONTROL IS RETURNED VIA TCF RESUME WHICH
043813,000047: # IN EFFECT IS A RESUME.
043814,000048: # SUBROUTINES CALLED- NONE
043815,000049: # NORMAL EXIT MODE- TCF RESUME
043816,000050: # ALARM OR ABORT EXIT MODE- NONE
043817,000051: # RESTART PROTECTION:
043818,000052: # ON A FRESH START AND RESTART THE 'STARTSUB' SUBROUTINE WILL INITIALIZE THE DOWNLIST POINTER(ACTUALLY
043819,000053: # DNTMGOTO) TO THE BEGINNING OF THE CURRENT DOWNLIST(I.E. CURRENT CONTENTS OF DNLSTADR). THIS HAS THE
043820,000054: # EFFECT OF IGNORING THE REMAINDER OF THE DOWNLIST WHICH THE DOWN-TELEMETRY PROGRAM WAS WORKING ON WHEN
043821,000055: # THE RESTART(OR FRESH START) OCCURRED AND RESUME DOWN TELEMETRY FROM THE BEGINNING OF THE CURRENT
043822,000056: # DOWNLIST.
043823,000057: # ALSO OF INTEREST IS THE FACT THAT ON A RESTART THE AGC WILL ZERO DOWNLINK CHANNELS 13, 34 AND 35.
043824,000058: # DOWNLINK LIST SELECTION:
043825,000059: # THE APPROPRIATE DOWNLINK LISTS ARE SELECTED BY THE FOLLOWING:
043826,000060: # 1. FRESH START
043827,000061: # 2. V37EXXE WHERE XX = THE MAJOR MODE BEING SELECTED.
043828,000062: # 3. UPDATE PROGRAM(P27)
043829,000063: # 4. NON-V37 SELECTABLE TYPE PROGRAMS(E.G. AGS INITIALIZATION(SUNDANCE,LUMINARY) AND P61-P62
043830,000064: # TRANSITION(COLOSSUS) ETC.).
043831,000065: # DOWNLINK LIST RULES AND LIMITATIONS:
043832,000066: # READ SECTION(S) WHICH FOLLOW 'DEBRIS' WRITEUP.
043833,000067: # OUTPUT- EVERY 2 SECONDS 100 DOUBLE PRECISION WORDS(I.E. 200 LGC
043834,000068: # COMPUTER WORDS) ARE TRANSMITTED VIA DOWNLINK.
043835,000069: # ERASABLE INITIALIZATION REQUIRED- NONE
043836,000070: # 'DNTMGOTO' AND 'DNLSTADR' ARE INITIALIZED BY THE FRESH START PROGRAM.
043837,000071: # DEBRIS(ERASABLE LOCATIONS DESTROYED BY THIS PROGRAM)-
043838,000072: # LDATALST,DNTMBUFF TO DNTMBUFF +21D,TMINDEX,DNQ.
043839,000073:
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Page 980 |
043841,000075:
043842,000076:
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Page 981 |
043844,000078: # DODOWNTM IS ENTERED EVERY 20 MS BY AN INTERRUPT TRIGGERED BY THE
043845,000079: # RECEIPT OF AN ENDPULSE FROM THE SPACECRAFT TELEMETRY PROGRAMMER.
043846,000080:
043847,000081: # NOTES REGARDING DOWNLINK LISTS ASSOCIATED WITH THIS PROGRAM:
043848,000082: # 1. DOWNLISTS. - DOWNLISTS MUST BE COMPILED IN THE SAME BANK AS THE
043849,000083: # DOWN-TELEMETRY PROGRAM. THIS IS DONE FOR EASE OF CODING, FASTER
043850,000084: # EXECUTION.
043851,000085: # 2. EACH DOWNLINK LIST CONSISTS OF A CONTROL LIST AND A NUMBER OF
043852,000086: # SUBLISTS.
043853,000087: # 3. A SUBLIST REFERS TO A SNAPSHOT OR DATA COMMON TO THE SAME OR OTHER
043854,000088: # DOWNLINK LISTS. ANY SUBLIST CONTAINING COMMON DATA NEEDS TO BE
043855,000089: # CODED ONLY ONCE FOR THE APPLICABLE DOWNLINK LISTS.
043856,000090: # 4. SNAPSHOT SUBLISTS REFER SPECIFICALLY TO HOMOGENOUS DATA WHICH MUST BE
043857,000091: # SAVED IN A BUFFER DURING ONE DOWNRUPT.
043858,000092: # 5. THE 1DNADR FOR THE 1ST WORD OF SNAPSHOT DATA IS FOUND AT THE END
043859,000093: # OF EACH SNAPSHOT SUBLIST, SINCE THE PROGRAM CODING SENDS THIS DP WORD
043860,000094: # IMMEDIATELY AFTER STORING THE OTHERS IN THE SNAPSHOT BUFFER.
043861,000095: # 6. ALL LISTS ARE COMBINATIONS OF CODED ERASABLE ADDRESS CONSTANTS
043862,000096: # CREATED FOR THE DOWNLIST PROGRAM.
043863,000097: # A. 1DNADR 1-WORD DOWNLIST ADDRESS.
043864,000098: # SAME AS ECADR, BUT USED WHEN THE WORD ADDRESSED IS THE LEFT
043865,000099: # HALF OF A DOUBLE-PRECISION WORD FOR DOWN TELEMETRY.
043866,000100: # B. 2DNADR - 6DNADR N-WORD DOWNLIST ADDRESS, N = 2 - 6.
043867,000101: # SAME AS 1DNADR, BUT WITH THE 4 UNUSED BITS OF THE ECADR FORMAT
043868,000102: # FILLED IN WITH 0001-0101. USED TO POINT TO A LIST OF N DOUBLE-
043869,000103: # PRECISION WORDS, STORED CONSECUTIVELY, FOR DOWN TELEMETRY.
043870,000104: # C. DNCHAN DOWNLIST CHANNEL ADDRESS.
043871,000105: # SAME AS 1DNADR, BUT WITH PREFIX BITS 0111. USED TO POINT TO
043872,000106: # A PAIR OF CHANNELS FOR DOWN TELEMETRY.
043873,000107: # D. DNPTR DOWN TELEMETRY SUBLIST POINTER.
043874,000108: # SAME AS CAF BUT TAGGED AS A CONSTANT. USED IN CONTROL LIST TO POINT TO A SUBLIST.
043875,000109: # CAUTION--- A DNPTR CANNOT BE USED IN A SUBLIST.
043876,000110: # 7. THE WORD ORDER CODE IS SET TO ZERO AT THE BEGINNING OF EACH DOWNLIST (I.E. CONTROL LIST) AND WHEN
043877,000111: # A '1DNADR TIME2' IS DETECTED IN THE CONTROL LIST(ONLY).
043878,000112: # 8. IN THE SNAPSHOT SUBLIST ONLY, THE DNADR'S CANNOT POINT TO THE FIRST WORD OF ANY EBANK.
043879,000113:
043880,000114: # DOWNLINK LIST RESTRICTIONS:
043881,000115: # (THE FOLLOWING POINTS MAY BE LISTED ELSEWHERE BUT ARE LISTED HERE SO IT IS CLEAR THAT THESE THINGS CANNOT BE
043882,000116: # DONE)
043883,000117: # 1. SNAPSHOT DOWNLIST:
043884,000118: # (A) CANNOT CONTAIN THE FOLLOWING ECADRS(I.E. 1DNADR'S): 0, 400, 1000, 1400, 2000, 2400, 3000, 3400.
043885,000119: # (B) CAN CONTAIN ONLY 1DNADR'S
043886,000120:
043887,000121: # 2. ALL DOWNLINKED DATA(EXCEPT CHANNELS) IS PICKED UP BY A <DCA<SO DOWNLINK LISTS CANNOT CONTAIN THE
043888,000122: # EQUIVALENT OF THE FOLLOWING ECADRS(I.E. IDNADRS): 377, 777, 1377, 1777, 2377, 27777, 3377, 3777.
043889,000123:
043890,000124: # (NOTE: THE TERM EQUIVALENT ' MEANT THAT THE IDNADR TO 6DNADR WILL BE PROCESSED LIKE 1 TO 6 ECADRS)
043891,000125:
043892,000126: # 3. CONTROL LISTS AND SUBLISTS CANNOT HAVE ENTRIES = OCTAL 00000 OR OCTAL 77777
043893,000127:
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043895,000129: # 4. THE '1DNADR TIME2' WHICH WILL CAUSE THE DOWNLINK PROGRAM TO SET THE WORDER CODE TO 3 MUST APPEAR IN THE
043896,000130: # CONTROL SECTION OF THE DOWNLIST.
043897,000131:
043898,000132: # 5. 'DNCHAN 0' CANNOT BE USED.
043899,000133:
043900,000134: # 6. 'DNPTR 0' CANNOT BE USED.
043901,000135:
043902,000136: # 7. DNPTR CANNOT APPEAR IN A SUBLIST.
043903,000137:
043904,000138:
043905,000139:
043906,000140:
043907,000141: # EBANK SETTINGS
043908,000142: # IN THE PROCESS OF SETTING THE EBANK(WHEN PICKING UP DOWNLINK DATA) THE DOWN TELEMETRY PROGRAM PUTS
043909,000143: # 'GARBAGE' INTO BITS15-12 OF EBANK. HUGH BLAIR-SMITH WARNS US THAT BITS15-12 OF EBANK MAY BECOME
043910,000144: # SIGNIFICANT SOMEDAY IN THE FUTURE. IF/WHEN THAT HAPPENS, THE PROGRAM SHOULD INSURE(BY MASKING ETC.)
043911,000145: # THAT BITS15-12 OF EBANK ARE ZERO.
043912,000146: # INITIALIZATION REQUIRED- TO INTERRUPT CURRENT LIST AND START A NEW ONE..
043913,000147: # 1. ADRES OF DOWNLINK LIST INTO DNLSTADR
043914,000148: # 2. NEGONE INTO SUBLIST
043915,000149: # 3. NEGONE INTO DNECADR
043916,000150:
043917,000151: 22,3663 BANK 22
043918,000152: 05,2000 SETLOC DOWNTELM
043919,000153: 05,2000 BANK
043920,000154:
043921,000155: 05,3507 0340 EBANK= DNTMBUFF
043922,000156:
043923,000157: 05,3507 COUNT* $$/DPROG
043924,000158: 05,3507 54016 DODOWNTM TS BANKRUPT
043925,000159: 05,3510 00006 EXTEND
043926,000160: 05,3511 22012 QXCH QRUPT # SAVE Q
043927,000161: 05,3512 34745 CA BIT7 # AT THE BEGINNING OF THE LIST THE WORD
043928,000162: 05,3513 00006 EXTEND # ORDER BIT WILL BE SET BACK TO ZERO.
043929,000163: 05,3514 02013 RAND CHAN13
043930,000164: 05,3515 10000 CCS A
043931,000165: 05,3516 00335 TC DNTMGOTO
043932,000166: 05,3517 06022 TC C13STALL
043933,000167: 05,3520 34745 CA BIT7
043934,000168: 05,3521 00006 EXTEND # SET WORD ORDER BIT TO 1 ONLY IF IT
043935,000169: 05,3522 05013 WOR CHAN13 # ALREADY ISN'T.
043936,000170: 05,3523 00335 TC DNTMGOTO # GO TO APPROPRIATE PHASE OF PROGRAM
043937,000171:
043938,000172: 05,2000 SETLOC DOWNTELM
043939,000173: 05,2000 BANK
043940,000174:
043941,000175: 05,3524 37761 DNPHASE1 CA NEGONE # INITIALIZE ALL CONTROL WORDS
043942,000176: 05,3525 54337 TS SUBLIST # WORDS TO MINUS ONE
043943,000177: 05,3526 54336 TS DNECADR
043944,000178: 05,3527 33654 CA LDNPHAS2 # SET DNTMGOTO =O ALL SUBSEQUENT DOWNRUPTS
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043946,000180: 05,3530 54335 TS DNTMGOTO # GO TO DNPHASE2
043947,000181: 05,3531 13545 TCF NEWLIST
043948,000182: 05,3532 10336 DNPHASE2 CCS DNECADR # SENDING OF DATA IN PROGRESS
043949,000183: 05,3533 03667 DODNADR TC FETCH2WD # YES - THEN FETCH THE NEXT 2 SP WORDS
043950,000184: 05,3534 77753 MINTIME2 -1DNADR TIME2 # NEGATIVE OF TIME2 1DNADR
043951,000185: 05,3535 13536 TCF +1 # (ECADR OF 3776 + 74001 = 77777)
043952,000186:
043953,000187: 05,3536 10337 CCS SUBLIST # IS THE SUBLIST IN CONTROL
043954,000188: 05,3537 13702 TCF NEXTINSL # YES
043955,000189: 05,3540 74001 DNADRDCR OCT 74001 # DNADR COUNT AND ECADR DECREMENTER
043956,000190:
043957,000191: 05,3541 30334 CHKLIST CA CTLIST
043958,000192: 05,3542 00006 EXTEND
043959,000193: 05,3543 63545 BZMF NEWLIST # IT WILL BE NEGATIVE AT END OF LIST
043960,000194: 05,3544 13552 TCF NEXTINCL
043961,000195: 05,3545 50333 NEWLIST INDEX DNLSTCOD
043962,000196: 05,3546 32456 CA DNTABLE # INITIALIZE CTLIST WITH
043963,000197: 05,3547 54334 TS CTLIST # STARTING ADDRESS OF NEW LIST
043964,000198: 05,3550 40333 CS DNLSTCOD
043965,000199: 05,3551 13771 TCF SENDID +3
043966,000200: 05,3552 50334 NEXTINCL INDEX CTLIST
043967,000201: 05,3553 30000 CA 0
043968,000202: 05,3554 10000 CCS A
043969,000203: 05,3555 24334 INCR CTLIST # SET POINTER TO PICK UP NEXT CTLIST WORD
043970,000204: 05,3556 13562 TCF +4 # ON NEXT ENTRY TO PROG. (A SHOULD NOT =0)
043971,000205: 05,3557 56334 XCH CTLIST # SET CTLIST TO NEGATIVE AND PLACE(CODING)
043972,000206: 05,3560 40000 COM # UNCOMPLEMENTED DNADR INTO A. (FOR LA)
043973,000207: 05,3561 56334 XCH CTLIST # (ST IN )
043974,000208: 05,3562 24000 +4 INCR A # (CTLIST)
043975,000209: 05,3563 54336 TS DNECADR # SAVE DNADR
043976,000210: 05,3564 63534 AD MINTIME2 # TEST FOR TIME2 (NEG. OF ECADR)
043977,000211: 05,3565 10000 CCS A
043978,000212: 05,3566 13572 TCF SETWO +1 # DON'T SET WORD ORDER CODE
043979,000213: 05,3567 47777 MINB1314 OCT 47777 # MINUS BIT 13 AND 14 (CAN'T GET HERE)
043980,000214: 05,3570 13572 TCF SETWO +1 # DON'T SET WORD ORDER CODE
043981,000215: 05,3571 03614 SETWO TC WOZERO # GO SET WORD ORDER CODE TO ZERO.
043982,000216: 05,3572 30336 +1 CA DNECADR # RELOAD A WITH THE DNADR.
043983,000217: 05,3573 63567 +2 AD MINB1314 # IS THIS A REGULAR DNADR?
043984,000218: 05,3574 00006 EXTEND
043985,000219: 05,3575 63667 BZMF FETCH2WD # YES. (A MUST NEVER BE ZERO)
043986,000220: 05,3576 67753 AD MINB12 # NO- IS IT A POINTER (DNPTR) OR A
043987,000221: 05,3577 00006 EXTEND # CHANNEL(DNCHAN)
043988,000222: 05,3600 63625 BZMF DODNPTR # IT'S A POINTER. (A MUST NEVER BE ZERO)
043989,000223:
043990,000224: 05,3601 00006 DODNCHAN TC 6 # (EXECUTED AS EXTEND) IT S A CHANNEL
043991,000225: 05,3602 50336 INDEX DNECADR
043992,000226: 05,3603 44000 INDEX 0 -4000 # (EXECUTED AS READ)
043993,000227: 05,3604 54001 TS L
043994,000228: 05,3605 00006 TC 6 # (EXECUTED AS EXTEND)
043995,000229: 05,3606 50336 INDEX DNECADR
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043997,000231: 05,3607 43777 INDEX 0 -4001 # (EXECUTED AS READ)
043998,000232: 05,3610 54336 TS DNECADR # SET DNECADR
043999,000233: 05,3611 37761 CA NEGONE # TO MINUS
044000,000234: 05,3612 56336 XCH DNECADR # WHILE PRESERVING A.
044001,000235: 05,3613 13715 TCF DNTMEXIT # GO SEND CHANNELS
044002,000236:
044003,000237: 05,3614 00006 WOZERO EXTEND
044004,000238: 05,3615 23265 QXCH C13QSAV
044005,000239: 05,3616 22070 LXCH RUPTREG1
044006,000240: 05,3617 06022 TC C13STALL
044007,000241:
044008,000242: 05,3620 22070 LXCH RUPTREG1
044009,000243: 05,3621 44745 CS BIT7
044010,000244: 05,3622 00006 EXTEND
044011,000245: 05,3623 03013 WAND CHAN13 # SET WORD ORDER CODE TO ZERO
044012,000246: 05,3624 01265 TC C13QSAV
044013,000247:
044014,000248: 05,3625 50336 DODNPTR INDEX DNECADR # DNECADR CONTAINS ADRES OF SUBLIST
044015,000249: 05,3626 00000 0 0 # CLEAR AND ADD LIST ENTRY INTO A.
044016,000250: 05,3627 10000 CCS A # IS THIS A SNAPSHOT SUBLIST
044017,000251: 05,3630 30336 CA DNECADR # NO, IT IS A REGULAR SUBLIST.
044018,000252: 05,3631 13701 TCF DOSUBLST # A MUST NOT BE ZERO.
044019,000253:
044020,000254: 05,3632 56336 XCH DNECADR # YES, IT IS A SNAPSHOT SUBLIST.
044021,000255: 05,3633 54337 TS SUBLIST # C(DNECADR) INTO SUBLIST
044022,000256: 05,3634 34755 CAF ZERO # A INTO A
044023,000257: 05,3635 56336 XCH TMINDEX # (NOTE.. TMINDEX = DNECADR)
044024,000258:
044025,000259:
044026,000260: # THE FOLLOWING CODING (FROM SNAPLOOP TO SNAPEND)IS FOR THE PURPOSE OF TAKING A SNAPSHOT OF 12 DP REGISTERS.
044027,000261: # THIS IS DONE BY SAVING 11 DP REGISTERS IN DNTMBUFF AND SENDING THE FIRST DP WORD IMMEDIATELY.
044028,000262: # THE SNAPSHOT PROCESSING IS THE MOST TIME CONSUMING AND THEREFORE THE CODING AND LIST STRUCTURE WERE DESIGNED
044029,000263: # TO MINIMIZE TIME. THE TIME OPTIMIZATION RESULTS IN RULES UNIQUE TO THE SNAPSHOT PORTION OF THE DOWNLIST.
044030,000264: # THESE RULES ARE......
044031,000265: # 1. ONLY 1DNADR'S CAN APPEAR IN THE SNAPSHOT SUBLIST
044032,000266: # 2. THE 1DNADR'S CANNOT REFER TO THE FIRST LOCATION IN ANY BANK.
044033,000267:
044034,000268: 05,3636 54003 SNAPLOOP TS EBANK # SET EBANK
044035,000269: 05,3637 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
044036,000270: 05,3640 00006 EXTEND
044037,000271: 05,3641 50000 INDEX A
044038,000272: 05,3642 E3,1401 EBANK= 1401
044039,000273: 05,3642 31402 DCA 1401 # PICK UP 2 SNAPSHOT WORDS.
044040,000274: 05,3643 0340 EBANK= DNTMBUFF
044041,000275: 05,3643 50336 INDEX TMINDEX
044042,000276: 05,3644 52341 DXCH DNTMBUFF # STORE 2 SNAPSHOT WORDS IN BUFFER
044043,000277: 05,3645 24336 INCR TMINDEX # SET BUFFER INDEX FOR NEXT 2 WORDS.
044044,000278: 05,3646 24336 INCR TMINDEX
044045,000279: 05,3647 24337 SNAPAGN INCR SUBLIST # SET POINTER TO NEXT 2 WORDS OF SNAPSHOT
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044047,000281: 05,3650 50337 INDEX SUBLIST
044048,000282: 05,3651 00000 0 0 # = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
044049,000283: 05,3652 10000 CCS A # TEST FOR LAST TWO WORDS OF SNAPSHOT.
044050,000284: 05,3653 13636 TCF SNAPLOOP # NOT LAST TWO.
044051,000285: 05,3654 03532 LDNPHAS2 GENADR DNPHASE2
044052,000286: 05,3655 54337 TS SUBLIST # YES, LAST. SAVE A.
044053,000287: 05,3656 37761 CA NEGONE # SET DNECADR AND
044054,000288: 05,3657 54336 TS DNECADR # SUBLIST POINTERS
044055,000289: 05,3660 56337 XCH SUBLIST # TO NEGATIVE VALUES.
044056,000290: 05,3661 54003 TS EBANK
044057,000291: 05,3662 74357 MASK LOW8
044058,000292: 05,3663 00006 EXTEND
044059,000293: 05,3664 50000 INDEX A
044060,000294: 05,3665 E3,1401 EBANK= 1401
044061,000295: 05,3665 31402 DCA 1401 # PICK UP FIRST 2 WORDS OF SNAPSHOT.
044062,000296: 05,3666 0340 EBANK= DNTMBUFF
044063,000297: 05,3666 13715 SNAPEND TCF DNTMEXIT # NOW GO SEND THEM.
044064,000298:
044065,000299: 05,3667 30336 FETCH2WD CA DNECADR
044066,000300: 05,3670 54003 TS EBANK # SET EBANK
044067,000301: 05,3671 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS
044068,000302: 05,3672 54001 TS L
044069,000303: 05,3673 33540 CA DNADRDCR # DECREMENT COUNT AND ECADR
044070,000304: 05,3674 26336 ADS DNECADR
044071,000305: 05,3675 00006 EXTEND
044072,000306: 05,3676 50001 INDEX L
044073,000307: 05,3677 E3,1400 EBANK= 1400
044074,000308: 05,3677 31401 DCA 1400 # PICK UP 2 DATA WORDS
044075,000309: 05,3700 0340 EBANK= DNTMBUFF
044076,000310: 05,3700 13715 TCF DNTMEXIT # NOW GO SEND THEM.
044077,000311:
044078,000312: 05,3701 54337 DOSUBLST TS SUBLIST # SET SUBLIST POINTER
044079,000313: 05,3702 50337 NEXTINSL INDEX SUBLIST
044080,000314: 05,3703 00000 0 0 # = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
044081,000315: 05,3704 10000 CCS A # IS IT THE END OF THE SUBLIST
044082,000316: 05,3705 24337 INCR SUBLIST # NO-
044083,000317: 05,3706 13712 TCF +4
044084,000318: 05,3707 54337 TS SUBLIST # SAVE A.
044085,000319: 05,3710 37761 CA NEGONE # SET SUBLIST TO MINUS
044086,000320: 05,3711 56337 XCH SUBLIST # RETRIEVE A.
044087,000321: 05,3712 24000 +4 INCR A
044088,000322: 05,3713 54336 TS DNECADR # SAVE DNADR
044089,000323: 05,3714 13573 TCF SETWO +2 # GO USE COMMON CODING(PROBLEMS WOULD
044090,000324: # OCCUR IF THE PROGRAM ENCOUNTERED A
044091,000325: # DNPTR NOW)
044092,000326:
044093,000327: 05,3715 00006 DNTMEXIT EXTEND # DOWN-TELEMETRY EXIT
044094,000328: 05,3716 01034 WRITE DNTM1 # TO SEND A + L TO CHANNELS 34 + 35
044095,000329: 05,3717 30001 CA L # RESPECTIVELY
044096,000330: 05,3720 00006 TMEXITL EXTEND
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Page 986 |
044098,000332: 05,3721 01035 WRITE DNTM2
044099,000333: 05,3722 15301 TMRESUME TCF RESUME # EXIT TELEMETRY PROGRAM VIA RESUME.
044100,000334:
044101,000335: 05,3723 7753 MINB12 EQUALS -1/8
044102,000336:
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Page 987 |
044104,000338: # SUBROUTINE NAME- DNDUMP
044105,000339: # FUNCTIONAL DESCRIPTION - TO SEND (DUMP) ALL 8 BANKS OF ERASABLE STORAGE TWICE. BANKS ARE SENT ONE AT A TIME
044106,000340: # EACH BANK IS PRECEEDED BY AN ID WORD, SYNCH BITS, ECADR AND TIME1 FOLLOWED BY THE 256D WORDS OF EACH
044107,000341: # EBANK. EBANKS ARE DUMPED IN ORDER(I.E. EBANK 0 FIRST, THEN EBANK1 ETC.)
044108,000342: # CALLING SEQUENCE- THE GROUND OR ASTRONAUT BY KEYING V74E CAN INITIALIZE THE DUMP.
044109,000343: # AFTER KEYING IN V74E THE CURRENT DOWNLIST WILL BE IMMEDIATELY TERMINATED AND THE DOWNLINK ERASABLE DUMP
044110,000344: # WILL BEGIN.
044111,000345: # ONCE INITIATED THE DOWNLINK ERASABLE DUMP CAN BE TERMINATED (AND INTERRUPTED DOWNLIST REINSTATED) ONLY
044112,000346: # BY THE FOLLOWING:
044113,000347: # 1. A FRESH START
044114,000348: # 2. COMPLETION OF BOTH COMPLETE DUMPS
044115,000349: # 3. AND INVOLUNTARILY BY A RESTART.
044116,000350: # NORMAL EXIT MODE- TCF DNPHASE1
044117,000351: # ALARM OR ABORT MODE- NONE
044118,000352: # *SUBROUTINES CALLED- NONE.
044119,000353: # ERASABLE INITIALIZATION REQUIRED-
044120,000354: # NONE
044121,000355: # DEBRIS- DUMPLOC, DUMPSW, DNTMGOTO, EBANK AND CENTRAL REGISTERS
044122,000356: # TIMING- TIME(IN SECS) = ((NO.DUMPS)*(NO.EBANKS)* (WDSPEREBANK + NO.IDWDS)) / NO.WDSPERSEC
044123,000357: # TIME(IN SECS) = ( 4 )*( 8 )* ( 256 + 4 ) / 100
044124,000358: # THUS TIME(IN SECS TO SEND DUMP OF ERASABLE 4 TIMES VIA DOWNLINK) = 83.2 SECONDS
044125,000359:
044126,000360: # STRUCTURE OF ONE EBANK AS IT IS SENT BY DOWNLINK PROGRAM-
044127,000361: # (REMINDER-THIS ONLY DESCRIBES ONE OF THE 8 EBANKS X 4 (DUMPS) = 32 EBANKS WHICH WILL BE SENT BY DNDUMP)
044128,000362: # DOWNLIST W
044129,000363: # WORD TAKEN FROM CONTENTS OF EXAMPLE O COMMENTS
044130,000364:
044131,000365: # 1 ERASID 0177X 0 DOWNLIST I.D. FOR DOWNLINK ERASABLE DUMP (X=7 CSM, 6 LM)
044132,000366: # 2 LOWIDCOD 77340 1 DOWNLINK SYNCH BITS.(SAME ONE USED IN ALL OTHER DOWNLISTS)
044133,000367: # 3 DUMPLOC 13400 1 (SEE NOTES ON DUMPLOC)1= 3RD ERAS DUMP, 3400=ECADR OF 5TH WD
044134,000368: # 4 TIME1 14120 1 TIME IN CENTISECONDS
044135,000369: # 5 FIRST WORD OF EBANK X 03400 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1400 (ECADR 3400)
044136,000370: # 6 2ND WORD OF EBANK X 00142 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1401 (ECADR 3401)
044137,000371: # 7 3RD WORD OF EBANK X 00142 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1402 (ECADR 3402)
044138,000372: # . 1
044139,000373: # . 1
044140,000374: # . 1
044141,000375: # 260D 256TH WORD OF EBANK X 03777 1 IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1777 (ECADR 3777)
044142,000376:
044143,000377: # NOTE- DUMPLOC CONTAINS THE COUNTER AND ECADR FOR EACH WORD BEING SENT.
044144,000378: # THE BIT STRUCTURE OF DUMPLOC IS FOLLOWS---
044145,000379: # X = NOT USED
044146,000380: # X ABC EEE RRRRRRRR ABC = ERASABLE DUMP COUNTER(I.E. ABC = 0,1,2 OR 3 WHICH MEANS THAT
044147,000381: # COMPLETE ERASABLE DUMP NUMBER 1,2,3 OR 4 RESPECTIVELY IS IN PROGRESS)
044148,000382: # EEE = EBANK BITS
044149,000383: # RRRRRRRR = RELATIVE ADDRESS WITHIN AN EBANK.
044150,000384:
044151,000385: 05,3723 34755 DNDUMPI CA ZERO # INITIALIZE DOWNLINK
044152,000386: 05,3724 54336 TS DUMPLOC # ERASABLE DUMP
044153,000387: 05,3725 03766 +2 TC SENDID # GO SEND ID AND SYNCH BITS
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Page 988 |
044155,000389: 05,3726 33735 CA LDNDUMP1 # SET DNTMGOTO
044156,000390: 05,3727 54335 TS DNTMGOTO # TO LOCATION FOR NEXT PASS
044157,000391: 05,3730 30025 CA TIME1 # PLACE TIME1
044158,000392: 05,3731 56001 XCH L # INTO L
044159,000393: 05,3732 30336 CA DUMPLOC # AND ECADR OF THIS EBANK INTO A
044160,000394: 05,3733 13715 TCF DNTMEXIT # SEND DUMPLOC AND TIME1
044161,000395:
044162,000396: 05,3734 03736 LDNDUMP ADRES DNDUMP
044163,000397: 05,3735 03750 LDNDUMP1 ADRES DNDUMP1
044164,000398:
044165,000399: 05,3736 34752 DNDUMP CA TWO # INCREMENT ECADR IN DUMPLOC
044166,000400: 05,3737 26336 ADS DUMPLOC # TO NEXT DP WORD TO BE
044167,000401: 05,3740 74357 MASK LOW8 # DUMPED AND SAVE IT.
044168,000402: 05,3741 10000 CCS A # IS THIS THE BEGINNING OF A NEW EBANK
044169,000403: 05,3742 13752 TCF DNDUMP2 # NO- THEN CONTINUE DUMPING
044170,000404: 05,3743 30336 CA DUMPLOC # YES- IS THIS THE END OF THE
044171,000405: 05,3744 74737 MASK BIT13 # SECOND COMPLETE ERASABLE DUMP?
044172,000406: 05,3745 00006 EXTEND
044173,000407: 05,3746 13725 BZF DNDUMPI +2 # NO - GO BACK AND INITIALIZE NEXT BANK
044174,000408: 05,3747 13524 TCF DNPHASE1 # YES - SEND DOWNLIST AGAIN
044175,000409: 05,3750 33734 DNDUMP1 CA LDNDUMP # SET DNTMGOTO
044176,000410: 05,3751 54335 TS DNTMGOTO # FOR WORDS 3 TO 256D OF CURRENT EBANK
044177,000411:
044178,000412: 05,3752 30336 DNDUMP2 CA DUMPLOC
044179,000413: 05,3753 54003 TS EBANK # SET EBANK
044180,000414: 05,3754 74357 MASK LOW8 # ISOLATE RELATIVE ADDRESS.
044181,000415: 05,3755 54002 TS Q # (NOTE: MASK INSTRUCTION IS USED TO PICK
044182,000416: 05,3756 34754 CA NEG0 # UP ERASABLE REGISTERS SO THAT EDITING
044183,000417: 05,3757 54001 TS L # REGISTERS 20-23 WILL NOT BE ALTERED.)
044184,000418: 05,3760 50002 INDEX Q
044185,000419: 05,3761 E3,1400 EBANK= 1400 # PICK UP LOW ORDER REGISTER OF PAIR
044186,000420: 05,3761 71401 MASK 1401 # OF ERASABLE REGISTERS.
044187,000421: 05,3762 56001 XCH L
044188,000422: 05,3763 50002 INDEX Q # PICK UP HIGH ORDER REGISTER OF PAIR
044189,000423: 05,3764 71400 MASK 1400 # OF ERASABLE REGISTERS.
044190,000424: 05,3765 0340 EBANK= DNTMBUFF
044191,000425: 05,3765 13715 TCF DNTMEXIT # GO SEND THEM
044192,000426:
044193,000427:
044194,000428: 05,3766 00006 SENDID EXTEND # **ENTRANCE USED BY ERASABLE DUMP PROG.**
044195,000429: 05,3767 22335 QXCH DNTMGOTO # SET DNTMGOTO SO NEXT TIME PROG WILL GO
044196,000430: 05,3770 35011 CAF ERASID # TO LOCATION FOLLOWING :TC SENDID:
044197,000431:
044198,000432: 05,3771 54001 TS L # **ENTRANCE USED BY REGULAR DOWNLINK PG**
044199,000433: 05,3772 03614 TC WOZERO # GO SET WORD ORDER CODE TO ZERO
044200,000434: 05,3773 32065 CAF LOWIDCOD # PLACE SPECIAL ID CODE INTO L
044201,000435: 05,3774 56001 XCH L # AND ID BACK INTO A
044202,000436: 05,3775 13715 TCF DNTMEXIT # SEND DOWNLIST ID CODE(S).
End of include-file DOWN-TELEMETRY_PROGRAM.agc. Parent file is MAIN.agc