Source Code

These source-code files were obtained by digitally photographing an Artemis 72 program listing from a private collection and then modifying pre-existing Comanche 55 (Apollo 11) source files to incorporate changes. Note that the page images presented online are of reduced quality, and that additional images may be available. Report any conversion errors or legibility problems in page images to info@sandroid.org. Notations on the program listing read, in part:

	GAP: ASSEMBLE REVISION 072 OF AGC PROGRAM ARTEMIS 
	BY NASA 2021114-011 11:40 FEB. 26, 1971

	THIS AGC PROGRAM SHALL ALSO BE REFERRED TO AS
				COLOSSUS 3
	THIS PROGRAM IS INTENDED FOR USE IN THE CM AS SPECIFIED
	IN REPORT R-577.  THIS PROGRAM WAS PREPARED UNDER OSR
	PROJECT 55-23890, SPONSORED BY THE MANNED SPACECRAFT
	CENTER OF THE NATIONAL AERONAUTICS AND SPACE
	ADMINISTRATION THROUGH CONTRACT NAS 9-4065 WITH THE
	CHARLES STARK DRAPER LABORATORY, MASSACHUSETTS INSTITUTE OF
	TECHNOLOGY, CAMBRIDGE, MASS.

047597,000002:                                                                                                 #  Copyright:     Public domain.
047598,000003:                                                                                                 #  Filename:      DOWN-TELEMETRY_PROGRAM.agc
047599,000004:                                                                                                 #  Purpose:       Part of the source code for Artemis (i.e., Colossus 3),
047600,000005:                                                                                                 #                 build 072.  This is for the Command Module's (CM) 
047601,000006:                                                                                                 #                 Apollo Guidance Computer (AGC), we believe for 
047602,000007:                                                                                                 #                 Apollo 15-17.
047603,000008:                                                                                                 #  Assembler:     yaYUL
047604,000009:                                                                                                 #  Contact:       Sergio Navarro <sergionavarrog@gmail.com>
047605,000010:                                                                                                 #  Website:       www.ibiblio.org/apollo/index.html
047606,000011:                                                                                                 #  Page scans:    www.ibiblio.org/apollo/ScansForConversion/Artemis072/
047607,000012:                                                                                                 #  Mod history:   2009-08-27 SN   Adapted from corresponding Comanche 055 file.
047608,000013:                                                                                                 #                 2009-09-04 JL   Fixed typos. Fixed page comments.
047609,000014:                                                                                                 #                 2009-09-06 JL   Fixed typos.
047610,000015:                                                                                                 #                 2010-02-20 RSB  Un-##'d this header.
047611,000016: 
047612,000017:                                                                                                 # # Page 1093
047613,000018:                                                                                                 #  PROGRAM NAME- DOWN TELEMETRY PROGRAM
047614,000019:                                                                                                 #  MOD NO.- 0       TO COMPLETELY REWRITE THE DOWN TELEMETRY PROGRAM AND DOWNLINK ERASABLE DUMP PROGRAM FOR THE
047615,000020:                                                                                                 #                   PURPOSE OF SAVING APPROXIMATELY 150 WORDS OF CORE STORAGE.
047616,000021:                                                                                                 #                   THIS CHANGE REQUIRES AN ENTIRELY NEW METHOD OF SPECIFYING DOWNLINK LISTS. REFER TO DOWNLINK
047617,000022:                                                                                                 #                   LISTS LOG SECTION FOR MORE DETAILS. HOWEVER THIS CHANGE WILL NOT AFFECT THE GROUND PROCESSING
047618,000023:                                                                                                 #                   OF DOWN TELEMETRY DATA.
047619,000024:                                                                                                 #  MOD BY-  KILROY, SMITH, DEWITT
047620,000025:                                                                                                 #  MOD BY - DENSMORE - JUNE 1969 - ELIMINATE ERASABLE DUMP COUNT
047621,000026:                                                                                                 #  DATE-    02 OCT 67
047622,000027:                                                                                                 #  AUTHORS- KILROY, SMITH, DWWITT, DEWOLF, FAGIN
047623,000028:                                                                                                 #  LOG SECTION- DOWN-TELEMETRY PROGRAM
047624,000029:                                                                                                 #  FUNCTIONAL DESCRIPTION- THIS ROUTINE IS INITIATED BY TELEMETRY END
047625,000030:                                                                                                 #            PULSE FROM THE DOWNLINK TELEMETRY CONVERTER. THIS PULSE OCCURS
047626,000031:                                                                                                 #            AT 50 TIMES PER SEC (EVERY 20 MS) THEREFORE DODOWNTM IS
047627,000032:                                                                                                 #            EXECUTED AT THESE RATES. THIS ROUTINE SELECTS THE APPROPRIATE
047628,000033:                                                                                                 #            AGC DATA TO BE TRANSMITTED DOWNLINK AND LOADS IT INTO OUTPUT
047629,000034:                                                                                                 #            CHANNELS 34 AND 35. THE INFORMATION IS THEN GATED OUT FROM THE
047630,000035:                                                                                                 #            LGC IN SERIAL FASHION.
047631,000036:                                                                                                 #            THIS PROGRAM IS CODED FOR A 2 SECOND DOWNLIST. SINCE DOWNRUPTS
047632,000037:                                                                                                 #            OCCUR EVERY 20 MS AND 2 AGC COMPUTER WORDS CAN BE PLACED IN
047633,000038:                                                                                                 #            CHANNELS 34 AND 35 DURING EACH DOWNRUPT THE PROGRAM IS CAPABLE
047634,000039:                                                                                                 #            OF SENDING 200 AGC WORDS EVERY 2 SECONDS.
047635,000040:                                                                                                 #  CALLING SEQUENCE- NONE
047636,000041:                                                                                                 #            PROGRAM IS ENTERED VIA TCF DODOWNTM WHICH IS EXECUTED AS A
047637,000042:                                                                                                 #            RESULT OF A DOWNRUPT. CONTROL IS RETURNED VIA TCF RESUME WHICH
047638,000043:                                                                                                 #            IN EFFECT IS A RESUME.
047639,000044:                                                                                                 #  SUBROUTINES CALLED- NONE
047640,000045:                                                                                                 #  NORMAL EXIT MODE- TCF RESUME
047641,000046:                                                                                                 #  ALARM OR ABORT EXIT MODE- NONE
047642,000047:                                                                                                 #  RESTART PROTECTION:
047643,000048:                                                                                                 #            ON A FRESH START AND RESTART THE 'STARTSUB' SUBROUTINE WILL INITIALIZE THE DOWNLIST POINTER (ACTUALLY
047644,000049:                                                                                                 #            DNTMGOTO) TO THE BEGINNING OF THE CURRENT DOWNLIST (I.E. CURRENT CONTENTS OF DNLSTADR). THIS HAS THE
047645,000050:                                                                                                 #            EFFECT OF IGNORING THE REMAINDER OF THE DOWNLIST WHICH THE DOWN-TELEMETRY PROGRAM WAS WORKING ON WHEN
047646,000051:                                                                                                 #            THE RESTART (OR FRESH START) OCCURRED AND RESUME DOWN TELEMETRY FROM THE BEGINNING OF THE CURRENT
047647,000052:                                                                                                 #            DOWNLIST.
047648,000053:                                                                                                 #            ALSO OF INTEREST IS THE FACT THAT ON A RESTART THE AGC WILL ZERO DOWNLINK CHANNELS 13, 34 AND 35.
047649,000054:                                                                                                 #  DOWNLINK LIST SELECTION:
047650,000055:                                                                                                 #            THE APPROPRIATE DOWNLINK LISTS ARE SELECTED BY THE FOLLOWING:
047651,000056:                                                                                                 #            1. FRESH START
047652,000057:                                                                                                 #            2. V37EXXE  WHERE XX = THE MAJOR MODE BEING SELECTED.
047653,000058:                                                                                                 #            3. UPDATE PROGRAM (P27)
047654,000059:                                                                                                 #            4.   NON-V37 SELECTABLE TYPE PROGRAMS (E.G. AGS INITIALIZATION (SUNDANCE, LUMINARY) AND P61-P62
047655,000060:                                                                                                 #                 TRANSITION (COLOSSUS) ETC.).
047656,000061:                                                                                                 #  DOWNLINK LIST RULES AND LIMITATIONS:
047657,000062:                                                                                                 #            READ SECTION(S) WHICH FOLLOW 'DEBRIS' WRITEUP.
047658,000063:                                                                                                 #  OUTPUT-  EVERY 2 SECONDS 100 DOUBLE PRECISION WORDS (I.E., 200 LGC
047659,000064:                                                                                                 #            COMPUTER WORDS) ARE TRANSMITTED VIA DOWNLINK.
047660,000065:                                                                                                 #  ERASABLE INITIALIZATION REQUIRED- NONE
047661,000066:                                                                                                 #            'DNTMGOTO' AND 'DNLSTADR' ARE INITIALIZED BY THE FRESH START PROGRAM.
047662,000067:                                                                                                 #  DEBRIS (ERASABLE LOCATIONS DESTROYED BY THIS PROGRAM)-
047663,000068:                                                                                                 # # Page 1094
047664,000069:                                                                                                 #            LDATALST, DNTMBUFF TO DNTMBUFF +21D, TMINDEX, DNQ.
047665,000070: 
047666,000071:                                                                                                 # # Page 1095
047667,000072:                                                                                                 #  DODOWNTM IS ENTERED EVERY 20 MS BY AN INTERRUPT TRIGGERED BY THE
047668,000073:                                                                                                 #  RECEIPT OF AN ENDPULSE FROM THE SPACECRAFT TELEMETRY PROGRAMMER.
047669,000074: 
047670,000075:                                                                                                 #  NOTES REGARDING DOWNLINK LISTS ASSOCIATED WITH THIS PROGRAM:
047671,000076:                                                                                                 #  1. DOWNLISTS. - DOWNLISTS MUST BE COMPILED IN THE SAME BANK AS THE
047672,000077:                                                                                                 #     DOWN-TELEMETRY PROGRAM. THIS IS DONE FOR EASE OF CODING, FASTER
047673,000078:                                                                                                 #     EXECUTION.
047674,000079:                                                                                                 #  2. EACH DOWNLINK LIST CONSISTES OF A CONTROL LIST AND A NUMBER OF
047675,000080:                                                                                                 #     SUBLISTS.
047676,000081:                                                                                                 #  3. A SUBLIST REFERS TO A SNAPSHOT OR DATA COMMON TO THE SAME OR OTHER
047677,000082:                                                                                                 #     DOWNLINK LISTS. ANY SUBLIST CONTAINING COMMON DATA NEEDS TO BE
047678,000083:                                                                                                 #     CODED ONLY ONCE FOR THE APPLICABLE DOWNLINK LISTS.
047679,000084:                                                                                                 #  4. SNAPSHOT SUBLISTS REFER SPECIFICALLY TO HOMOGENEOUS DATA WHICH MUST BE
047680,000085:                                                                                                 #     SAVED IN A BUFFER DURING ONE DOWNRUPT.
047681,000086:                                                                                                 #  5. THE 1DNADR FOR THE 1ST WORD OF SNAPSHOT DATA IS FOUND AT THE END
047682,000087:                                                                                                 #     OF EACH SNAPSHOT SUBLIST, SINCE THE PROGRAM CODING SENDS THIS DP WORD
047683,000088:                                                                                                 #     IMMEDIATELY AFTER STORING THE OTHERS IN THE SNAPSHOT BUFFER.
047684,000089:                                                                                                 #  6. ALL LISTS ARE COMBINATIONS OF CODED ERASABLE ADDRESS CONSTANTS
047685,000090:                                                                                                 #     CREATED FOR THE DOWNLIST PROGRAM.
047686,000091:                                                                                                 #     A.  1DNADR                  1-WORD DOWNLIST ADDRESS.
047687,000092:                                                                                                 #          SAME AS ECADR, BUT USED WHEN THE WORD ADDRESSED IS THE LEFT
047688,000093:                                                                                                 #          HALF OF A DOUBLE-PRECISION WORD FOR DOWN TELEMETRY.
047689,000094:                                                                                                 #     B.  2DNADR - 6DNADR         N-WORD DOWNLIST ADDRESS, N = 2 - 6.
047690,000095:                                                                                                 #          SAME AS 1DNADR, BUT WTIH THE 4 UNUSED BITS OF THE ECADR FORMAT
047691,000096:                                                                                                 #          FILLED IN WITH 0001-0101.  USED TO POINT TO A LIST OF N DOUBLE-
047692,000097:                                                                                                 #          PRECISION WORDS, STORED CONSECUTIVELY, FOR DOWN TELEMETRY.
047693,000098:                                                                                                 #     C.  DNCHAN                  DOWNLIST CHANNEL ADDRESS.
047694,000099:                                                                                                 #          SAME AS 1DNADR, BUT WITH PREFIX BITS 0111.  USED TO POINT TO
047695,000100:                                                                                                 #          A PAIR OF CHANNELS FOR DOWN TELEMETRY.
047696,000101:                                                                                                 #     D.  DNPTR                   DOWN-TELEMETRY SUBLIST POINTER.
047697,000102:                                                                                                 #          SAME AS CAF BUT TAGGED AS A CONSTANT. USED IN CONTROL LIST TO POINT TO A SUBLIST.
047698,000103:                                                                                                 #          CAUTION--- A DNPTR CANNOT BE USED IN A SUBLIST.
047699,000104:                                                                                                 #  7. THE WORD ORDER CODE IS SET TO ZERO AT THE BEGINNING OF EACH DOWNLIST (I.E. CONTROL LIST) AND WHEN
047700,000105:                                                                                                 #     A '1DNADR TIME2' IS DETECTED IN THE CONTROL LIST (ONLY).
047701,000106:                                                                                                 #  8. IN THE SNAPSHOT SUBLIST ONLY, THE DNADR'S CANNOT POINT TO THE FIRST WORD OF ANY EBANK.
047702,000107: 
047703,000108:                                                                                                 #  DOWNLIST LIST RESTRICTIONS:
047704,000109:                                                                                                 #    (THE FOLLOWING POINTS MAY BE LISTED ELSEWHERE BUT ARE LISTED HERE SO IT IS CLEAR THAT THESE THINGS CANNOT BE
047705,000110:                                                                                                 #    DONE)
047706,000111: 
047707,000112:                                                                                                 #  1. SNAPSHOT DOWNLIST:
047708,000113:                                                                                                 #    (A) CANNOT CONTAIN THE FOLLOWING ECADRS (I.E. 1DNADR'S): Q, 400, 1000, 1400, 2000, 2400, 3000, 3400.
047709,000114:                                                                                                 #    (B) CAN CONTAIN ONLY 1DNADR'S
047710,000115: 
047711,000116:                                                                                                 #  2. ALL DOWNLINKED DATA (EXCEPT CHANNELS) IS PICKED UP BY A <DCA< SO DOWNLINK LISTS CANNOT CONTAIN THE
047712,000117:                                                                                                 #     EQUIVALENT OF THE FOLLOWING ECADRS (I.E. 1DNADRS): 377, 777, 1377, 1777, 2377, 27777, 3377, 3777.
047713,000118: 
047714,000119:                                                                                                 #     (NOTE: THE TERM 'EQUIVALENT' MEANT THAT THE 1DNADR TO 6DNADR WILL BE PROCESSED LIKE 1 TO 6 ECADRS)
047715,000120: 
047716,000121:                                                                                                 #  3. CONTROL LISTS AND SUBLISTS CANNOT HAVE ENTRIES = OCTAL 00000 OR OCTAL 77777
047717,000122:                                                                                                 # # Page 1096
047718,000123:                                                                                                 #  4. THE '1DNADR TIME2' WHICH WILL CAUSE THE DOWNLINK PROGRAM TO SET THE WORDER CODE TO 3 MUST APPEAR IN THE
047719,000124:                                                                                                 #     CONTROL SECTION OF THE DOWNLIST.
047720,000125: 
047721,000126:                                                                                                 #  5. 'DNCHAN 0' CANNOT BE USED.
047722,000127: 
047723,000128:                                                                                                 #  6. 'DNPTR 0' CANNOT BE USED.
047724,000129: 
047725,000130:                                                                                                 #  7. DNPTR CANNOT APPEAR IN A SUBLIST.
047726,000131: 
047727,000132:                                                                                                 #  EBANK SETTINGS
047728,000133:                                                                                                 #         IN THE PROCESS OF SETTING THE EBANK (WHEN PICKING UP DOWNLINK DATA) THE DOWN TELEMETRY PROGRAM PUTS
047729,000134:                                                                                                 #         'GARBAGE' INTO BITS15-12 OF EBANK. HUGH BLAIR-SMITH WARNS US THAT BITS15-12 OF EBANK MAY BECOME
047730,000135:                                                                                                 #         SIGNIFICANT SOMEDAY IN THE FUTURE. IF/WHEN THAT HAPPENS, THE PROGRAM SHOULD INSURE (BY MASKING ETC.)
047731,000136:                                                                                                 #         THAT BITS 15-12 OF EBANK ARE ZERO.
047732,000137:                                                                                                 #  INITIALIZATION REQUIRED- TO INTERRUPT CURRENT LIST AND START A NEW ONE..
047733,000138:                                                                                                 #         1.      ADRES OF DOWNLINK LIST INTO DNLSTADR
047734,000139:                                                                                                 #         2.      NEGONE INTO SUBLIST
047735,000140:                                                                                                 #         3.      NEGONE INTO DNECADR
047736,000141: 
047737,000142:    4000                                          SETLOC   FFTAG12                               
047738,000143:    4000                                          BANK                                           
047739,000144: 
047740,000145:    4621     0337                                 EBANK=   DNTMBUFF                              
047741,000146: 
047742,000147:    4621                                          COUNT*   $$/DPROG                              
047743,000148:    4621           54016        DODOWNTM          TS       BANKRUPT                              
047744,000149:    4622           00006                          EXTEND                                         
047745,000150:    4623           22012                          QXCH     QRUPT                                 #  SAVE Q
047746,000151:    4624           34762                          CA       BIT7                                  #  SET WORD ORDER CODE TO 1. EXCEPTION- AT
047747,000152:    4625           00006                          EXTEND                                         
047748,000153:    4626           02013                          RAND     CHAN13                                
047749,000154:    4627           10000                          CCS      A                                     
047750,000155:    4630           00334                          TC       DNTMGOTO                              
047751,000156:    4631           04542                          TC       C13STALL                              
047752,000157:    4632           34762                          CA       BIT7                                  
047753,000158:    4633           00006                          EXTEND                                         #  THE BEGINNING OF EACH LIST THE WORD
047754,000159:    4634           05013                          WOR      CHAN13                                #  CODE WILL BE SET BACK TO 0.
047755,000160:    4635           00334                          TC       DNTMGOTO                              #  GOTO APPROPRIATE PHASE OF PROGRAM
047756,000161: 
047757,000162: 05,2000                                          SETLOC   DOWNTELM                              
047758,000163: 05,2000                                          BANK                                           
047759,000164: 
047760,000165: 05,3446                                          COUNT*   $$/DPROG                              
047761,000166: 05,3446           37702        DNPHASE1          CA       NEGONE                                #  INITIALIZE ALL CONTROL WORDS
047762,000167: 05,3447           54336                          TS       SUBLIST                               #  WORDS TO MINUS ONE
047763,000168: 05,3450           54335                          TS       DNECADR                               
047764,000169: 05,3451           33574                          CA       LDNPHAS2                              #  SET DNTMGOTO =0 ALL SUSEQUENT DOWRUPTS
047765,000170:                                                                                                 # # Page 1097
047766,000171: 05,3452           54334                          TS       DNTMGOTO                              #  GO TO DNPHASE2
047767,000172: 05,3453           13467                          TCF      NEWLIST                               
047768,000173: 05,3454           10335        DNPHASE2          CCS      DNECADR                               #  SENDING OF DATA IN PROGRESS
047769,000174: 05,3455           03607        DODNADR           TC       FETCH2WD                              #  YES - THEN FETCH THE NEXT 2 SP WORDS
047770,000175: 05,3456           77753        MINTIME2          -1DNADR  TIME2                                 #  NEGATIVE OF TIME2 1DNADR
047771,000176: 05,3457           13460                          TCF      +1                                    #  (ECADR OF 3776 + 74001 = 77777)
047772,000177: 
047773,000178: 05,3460           10336                          CCS      SUBLIST                               #  IS THE SUBLIST IN CONTROL
047774,000179: 05,3461           13622                          TCF      NEXTINSL                              #  YES
047775,000180: 05,3462           74001        DNADRDCR          OCT      74001                                 #  DNADR COUNT AND ECADR DECREMENTER
047776,000181: 
047777,000182: 05,3463           30333        CHKLIST           CA       CTLIST                                
047778,000183: 05,3464           00006                          EXTEND                                         
047779,000184: 05,3465           63467                          BZMF     NEWLIST                               #  IT WILL BE NEGATIVE AT END OF LIST
047780,000185: 05,3466           13474                          TCF      NEXTINCL                              
047781,000186: 05,3467           50332        NEWLIST           INDEX    DNLSTCOD                              
047782,000187: 05,3470           32362                          CA       DNTABLE                               #  INITIALIZE CTLIST WITH
047783,000188: 05,3471           54333                          TS       CTLIST                                #    STARTING ADDRESS OF NEW LIST
047784,000189: 05,3472           40332                          CS       DNLSTCOD                              
047785,000190: 05,3473           13711                          TCF      SENDID     +3                         
047786,000191: 05,3474           50333        NEXTINCL          INDEX    CTLIST                                
047787,000192: 05,3475           30000                          CA       0                                     
047788,000193: 05,3476           10000                          CCS      A                                     
047789,000194: 05,3477           24333                          INCR     CTLIST                                #  SET POINTER TO PICK UP NEXT CTLIST WORD
047790,000195: 05,3500           13504                          TCF      +4                                    #  ON NEXT ENTRY TO PROG. (A SHOULD NOT =0)
047791,000196: 05,3501           56333                          XCH      CTLIST                                #  SET CTLIST TO NEGATIVE AND PLACE(CODING)
047792,000197: 05,3502           40000                          COM                                            #  UNCOMPLEMENTED DNADR INTO A.    (FOR LA)
047793,000198: 05,3503           56333                          XCH      CTLIST                                #                                  (ST IN )
047794,000199: 05,3504           24000                 +4       INCR     A                                     #                                  (CTLIST)
047795,000200: 05,3505           54335                          TS       DNECADR                               #  SAVE DNADR
047796,000201: 05,3506           63456                          AD       MINTIME2                              #  TEST FOR TIME2 (NEG. OF ECADR)
047797,000202: 05,3507           10000                          CCS      A                                     
047798,000203: 05,3510           13514                          TCF      SETWO      +1                         #  DON'T SET WORD ORDER CODE
047799,000204: 05,3511           47777        MINB1314          OCT      47777                                 #  MINUS BIT 13 AND 14  (CAN'T GET HERE)
047800,000205: 05,3512           13514                          TCF      SETWO      +1                         #  DON'T SET WORD ORDER CODE
047801,000206: 05,3513           03536        SETWO             TC       WOZERO                                #  GO SET WORD ORDER CODE TO ZERO.
047802,000207: 05,3514           30335                 +1       CA       DNECADR                               #  RELOAD A WITH THE DNADR.
047803,000208: 05,3515           63511                 +2       AD       MINB1314                              #  IS THIS A REGULAR DNADR?
047804,000209: 05,3516           00006                          EXTEND                                         
047805,000210: 05,3517           63607                          BZMF     FETCH2WD                              #  YES. (A MUST NEVER BE ZERO)
047806,000211: 05,3520           67674                          AD       MINB12                                #  NO- IS IT A POINTER (DNPTR) OR A
047807,000212: 05,3521           00006                          EXTEND                                         #      CHANNEL(DNCHAN)
047808,000213: 05,3522           63545                          BZMF     DODNPTR                               #  IT'S A POINTER. (A MUST NEVER BE ZERO)
047809,000214: 
047810,000215: 05,3523           00006        DODNCHAN          TC       6                                     #  (EXECUTED AS EXTEND) IT'S A CHANNEL
047811,000216: 05,3524           50335                          INDEX    DNECADR                               
047812,000217: 05,3525           44000                          INDEX    0          -4000                      #  (EXECUTED AS READ)
047813,000218: 05,3526           54001                          TS       L                                     
047814,000219: 05,3527           00006                          TC       6                                     #  (EXECUTED AS EXTEND)
047815,000220: 05,3530           50335                          INDEX    DNECADR                               
047816,000221:                                                                                                 # # Page 1098
047817,000222: 05,3531           43777                          INDEX    0          -4001                      #  (EXECUTED AS READ)
047818,000223: 05,3532           54335                          TS       DNECADR                               #  SET DNECADR
047819,000224: 05,3533           37702                          CA       NEGONE                                #      TO MINUS
047820,000225: 05,3534           56335                          XCH      DNECADR                               #          WHILE PRESERVING A.
047821,000226: 05,3535           13635                          TCF      DNTMEXIT                              #  GO SEND CHANNELS
047822,000227: 
047823,000228: 05,3536           00006        WOZERO            EXTEND                                         
047824,000229: 05,3537           22070                          QXCH     RUPTREG1                              
047825,000230: 05,3540           04542                          TC       C13STALL                              
047826,000231: 05,3541           44762                          CS       BIT7                                  
047827,000232: 05,3542           00006                          EXTEND                                         
047828,000233: 05,3543           03013                          WAND     CHAN13                                #  SET WORD ORDER CODE TO ZERO
047829,000234: 05,3544           00070                          TC       RUPTREG1                              #  RETURN TO CALLER
047830,000235: 
047831,000236: 05,3545           50335        DODNPTR           INDEX    DNECADR                               #  DNECADR CONTAINS ADRES OF SUBLIST
047832,000237: 05,3546           00000                          0        0                                     #  CLEAR AND ADD LIST ENTRY INTO A.
047833,000238: 05,3547           10000                          CCS      A                                     #  IS THIS A SNAPSHOT SUBLIST
047834,000239: 05,3550           30335                          CA       DNECADR                               #  NO, IT IS A REGULAR SUBLIST.
047835,000240: 05,3551           13621                          TCF      DOSUBLST                              #  A MUST NOT BE ZERO.
047836,000241: 
047837,000242: 05,3552           56335                          XCH      DNECADR                               #  YES, IT IS A SNAPSHOT SUBLIST.
047838,000243: 05,3553           54336                          TS       SUBLIST                               #  C(DNECADR) INTO SUBLIST
047839,000244: 05,3554           34772                          CAF      ZERO                                  #       A     INTO   A
047840,000245: 05,3555           56335                          XCH      TMINDEX                               #  (NOTE.. TMINDEX = DNECADR)
047841,000246: 
047842,000247:                                                                                                 #  THE FOLLOWING CODING (FROM SNAPLOOP TO SNAPEND) IS FOR THE PURPOSE OF TAKING A SNAPSHOT OF 12 DP REGISTERS.
047843,000248:                                                                                                 #  THIS IS DONE BY SAVING 11 DP REGISTERS IN DNTMBUFF AND SENDING THE FIRST DP WORD IMMEDIATELY.
047844,000249:                                                                                                 #  THE SNAPSHOT PROCESSING IS THE MOST TIME CONSUMING AND THEREFORE THE CODING AND LIST STRUCTURE WERE DESIGNED
047845,000250:                                                                                                 #  TO MINIMIZE TIME. THE TIME OPTIMIZATION RESULTS IN RULES UNIQUE TO THE SNAPSHOT PORTION OF THE DOWNLIST.
047846,000251:                                                                                                 #  THESE RULES ARE......
047847,000252:                                                                                                 #         1.      ONLY 1DNADR'S CAN APPEAR IN THE SNAPSHOT SUBLIST
047848,000253:                                                                                                 #         2.      THE 1DNADR'S CANNOT REFER TO THE FIRST LOCATION IN ANY BANK.
047849,000254: 
047850,000255: 05,3556           54003        SNAPLOOP          TS       EBANK                                 #  SET EBANK
047851,000256: 05,3557           74350                          MASK     LOW8                                  #  ISOLATE RELATIVE ADDRESS
047852,000257: 05,3560           00006                          EXTEND                                         
047853,000258: 05,3561           50000                          INDEX    A                                     
047854,000259: 05,3562  E3,1401                                 EBANK=   1401                                  
047855,000260: 05,3562           31402                          DCA      1401                                  #  PICK UP 2 SNAPSHOT WORDS.
047856,000261: 05,3563     0337                                 EBANK=   DNTMBUFF                              
047857,000262: 05,3563           50335                          INDEX    TMINDEX                               
047858,000263: 05,3564           52340                          DXCH     DNTMBUFF                              #  STORE 2 SNAPSHOT WORDS IN BUFFER
047859,000264: 05,3565           24335                          INCR     TMINDEX                               #  SET BUFFER INDEX FOR NEXT 2 WORDS.
047860,000265: 05,3566           24335                          INCR     TMINDEX                               
047861,000266: 05,3567           24336        SNAPAGN           INCR     SUBLIST                               #  SET POINTER TO NEXT 2 WORDS OF SNAPSHOT
047862,000267: 05,3570           50336                          INDEX    SUBLIST                               
047863,000268: 05,3571           00000                          0        0                                     #  = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
047864,000269: 05,3572           10000                          CCS      A                                     #  TEST FOR LAST TWO WORDS OF SNAPSHOT.
047865,000270:                                                                                                 # # Page 1099
047866,000271: 05,3573           13556                          TCF      SNAPLOOP                              #  NOT LAST TWO.
047867,000272: 05,3574           03454        LDNPHAS2          GENADR   DNPHASE2                              
047868,000273: 05,3575           54336                          TS       SUBLIST                               #  YES, LAST.  SAVE A.
047869,000274: 05,3576           37702                          CA       NEGONE                                #  SET DNECADR AND
047870,000275: 05,3577           54335                          TS       DNECADR                               #      SUBLIST POINTERS
047871,000276: 05,3600           56336                          XCH      SUBLIST                               #          TO NEGATIVE VALUES.
047872,000277: 05,3601           54003                          TS       EBANK                                 
047873,000278: 05,3602           74350                          MASK     LOW8                                  
047874,000279: 05,3603           00006                          EXTEND                                         
047875,000280: 05,3604           50000                          INDEX    A                                     
047876,000281: 05,3605  E3,1401                                 EBANK=   1401                                  
047877,000282: 05,3605           31402                          DCA      1401                                  #  PICK UP FIRST 2 WORDS OF SNAPSHOT.
047878,000283: 05,3606     0337                                 EBANK=   DNTMBUFF                              
047879,000284: 05,3606           13635        SNAPEND           TCF      DNTMEXIT                              #     NOW GO SEND THEM.
047880,000285: 
047881,000286: 05,3607           30335        FETCH2WD          CA       DNECADR                               
047882,000287: 05,3610           54003                          TS       EBANK                                 #  SET EBANK
047883,000288: 05,3611           74350                          MASK     LOW8                                  #  ISOLATE RELATIVE ADDRESS
047884,000289: 05,3612           54001                          TS       L                                     
047885,000290: 05,3613           33462                          CA       DNADRDCR                              #  DECREMENT COUNT AND ECADR
047886,000291: 05,3614           26335                          ADS      DNECADR                               
047887,000292: 05,3615           00006                          EXTEND                                         
047888,000293: 05,3616           50001                          INDEX    L                                     
047889,000294: 05,3617  E3,1400                                 EBANK=   1400                                  
047890,000295: 05,3617           31401                          DCA      1400                                  #  PICK UP 2 DATA WORDS
047891,000296: 05,3620     0337                                 EBANK=   DNTMBUFF                              
047892,000297: 05,3620           13635                          TCF      DNTMEXIT                              #     NOW GO SEND THEM.
047893,000298: 
047894,000299: 05,3621           54336        DOSUBLST          TS       SUBLIST                               #  SET SUBLIST POINTER
047895,000300: 05,3622           50336        NEXTINSL          INDEX    SUBLIST                               
047896,000301: 05,3623           00000                          0        0                                     #  = CA SSSS (SSSS = NEXT ENTRY IN SUBLIST)
047897,000302: 05,3624           10000                          CCS      A                                     #  IS IT THE END OF THE SUBLIST
047898,000303: 05,3625           24336                          INCR     SUBLIST                               #  NO-
047899,000304: 05,3626           13632                          TCF      +4                                    
047900,000305: 05,3627           54336                          TS       SUBLIST                               #  SAVE A.
047901,000306: 05,3630           37702                          CA       NEGONE                                #  SET SUBLIST TO MINUS
047902,000307: 05,3631           56336                          XCH      SUBLIST                               #  RETRIEVE A.
047903,000308: 05,3632           24000                 +4       INCR     A                                     
047904,000309: 05,3633           54335                          TS       DNECADR                               #  SAVE DNADR
047905,000310: 05,3634           13515                          TCF      SETWO      +2                         #  GO USE COMMON CODING (PROBLEMS WOULD
047906,000311:                                                                                                 #  OCCUR IF THE PROGRAM ENCOUNTERED A
047907,000312:                                                                                                 #  DNPTR NOW)
047908,000313: 
047909,000314: 05,3635           00006        DNTMEXIT          EXTEND                                         #  DOWN-TELEMETRY EXIT
047910,000315: 05,3636           01034                          WRITE    DNTM1                                 #  TO SEND A + L TO CHANNELS 34 + 35
047911,000316: 05,3637           30001                          CA       L                                     #  RESPECTIVELY
047912,000317: 05,3640           00006        TMEXITL           EXTEND                                         
047913,000318: 05,3641           01035                          WRITE    DNTM2                                 
047914,000319: 05,3642           15323        TMRESUME          TCF      RESUME                                #  EXIT TELEMTRY PROGRAM VIA RESUME.
047915,000320:                                                                                                 # # Page 1100
047916,000321: 05,3643     7674               MINB12            EQUALS   -1/8                                  
047917,000322: 
047918,000323:                                                                                                 # # Page 1101
047919,000324:                                                                                                 #  SUBROUTINE NAME- DNDUMP
047920,000325:                                                                                                 #  FUNCTIONAL DESCRIPTION - TO SEND (DUMP) ALL 8 BANKS OF ERASABLE STORAGE TWICE.  BANKS ARE SENT ONE AT A TIME
047921,000326:                                                                                                 #         EACH BANK IS PRECEEDED BY AN ID WORD, SYNCH BITS, ECADR AND TIME1 FOLLOWED BY THE 256D WORDS OF EACH
047922,000327:                                                                                                 #         EBANK. EBANKS ARE DUMPED IN ORDER (I.E. EBANK 0 FIRST, THEN EBANK1 ETC.)
047923,000328:                                                                                                 #  CALLING SEQUENCE- THE GROUND OR ASTRONAUT BY KEYING V74E CAN INITIALIZE THE DUMP.
047924,000329:                                                                                                 #         AFTER KEYING IN V74E THE CURRENT DOWNLIST WILL BE IMMEDIATELY TERMINATED AND THE DOWNLINK ERASABLE DUMP
047925,000330:                                                                                                 #         WILL BEGIN.
047926,000331:                                                                                                 #         ONCE INITITIATED THE DOWNLINK ERASABLE DUMP CAN BE TERMINATED (AND INTERRUPTED DOWNLIST REINSTATED) ONLY
047927,000332:                                                                                                 #         BY THE FOLLOWING:
047928,000333:                                                                                                 #         1. A FRESH START
047929,000334:                                                                                                 #         2. COMPLETION OF ALL DOWNLINK DUMPS
047930,000335:                                                                                                 #         3. AND INVOLUNTARILY BY A RESTART.
047931,000336:                                                                                                 #  NORMAL EXIT MODE- TCF DNPHASE1
047932,000337:                                                                                                 #  ALARM OR ABORT MODE- NONE
047933,000338:                                                                                                 #  *SUBROUTINES CALLED- NONE
047934,000339:                                                                                                 #  ERASABLE INITIALIZATION REQUIRED-
047935,000340:                                                                                                 #         NONE
047936,000341:                                                                                                 #  DEBRIS- DUMPLOC, DUMPSW, DNTMGOTO, EBANK, AND CENTRAL REGISTERS
047937,000342:                                                                                                 #  TIMING-    TIME (IN SECS) = ((NO.DUMPS)*(NO.EBANKS)* (WDSPEREBANK + NO.IDWDS)) / NO.WDSPERSEC
047938,000343:                                                                                                 #              TIME (IN SECS) =  (   4    )*(    8    )* (    256     +     4   )  /     100
047939,000344:                                                                                                 #         THUS TIME (IN SECS TO SEND DUMP OF ERASABLE 4 TIMES VIA DOWNLINK) = 83.2 SECONDS
047940,000345: 
047941,000346:                                                                                                 #  STRUCTURE OF ONE EBANK AS IT IS SENT BY DOWNLINK PROGRAM-
047942,000347:                                                                                                 #         (REMINDER- THIS ONLY DESCRIBES ONE OF THE 8 EBANKS X 4 (DUMPS) = 32 EBANKS WHICH WILL BE SENT BY DNDUMP)
047943,000348:                                                                                                 #         DOWNLIST                                W
047944,000349:                                                                                                 #           WORD  TAKEN FROM CONTENTS OF  EXAMPLE O       COMMENTS
047945,000350: 
047946,000351:                                                                                                 #             1   ERASID                   0177X  0       DOWNLIST I.D. FOR DOWNLINK ERASABLE DUMP (X=7 CSM, 6 LM)
047947,000352:                                                                                                 #             2   LOWIDCOD                 77340  1       DOWNLINK SYNCH BITS. (SAME ONE USED IN ALL OTHER DOWNLISTS)
047948,000353:                                                                                                 #             3   DUMPLOC                  13400  1       (SEE NOTES ON DUMPLOC) 1 = 3RD ERAS DUMP, 3400=ECADR OF 5TH WD
047949,000354:                                                                                                 #             4   TIME1                    14120  1       TIME IN CENTISECONDS
047950,000355:                                                                                                 #             5   FIRST WORD OF EBANK X    03400  1       IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1400 (ECADR 3400)
047951,000356:                                                                                                 #             6   2ND   WORD OF EBANK X    00142  1       IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1401 (ECADR 3401)
047952,000357:                                                                                                 #             7   3RD   WORD OF EBANK X    00142  1       IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1402 (ECADR 3402)
047953,000358:                                                                                                 #             .                                   1
047954,000359:                                                                                                 #             .                                   1
047955,000360:                                                                                                 #             .                                   1
047956,000361:                                                                                                 #            260D 256TH WORD OF EBANK X    03777  1       IN THIS EXAMPLE THIS WORD = CONTENTS OF E7,1777 (ECADR 3777)
047957,000362: 
047958,000363:                                                                                                 #  NOTE-  DUMPLOC CONTAINS THE COUNTER AND ECADR FOR EACH WORD BEING SENT.
047959,000364:                                                                                                 #         THE BIT STRUCTURE OF DUMPLOC IS FOLLOWS---
047960,000365:                                                                                                 #                                                X = NOT USED
047961,000366:                                                                                                 #                 X ABC EEE RRRRRRRR           ABC = ERASABLE DUMP COUNTER (I.E. ABC = 0,1,2, OR 3 WHICH MEANS THAT
047962,000367:                                                                                                 #                                                    COMPLETE ERASABLE DUMP NUMBER 1,2,3, OR 4 RESPECTIVELY IS IN PROGRESS)
047963,000368:                                                                                                 #                                              EEE = EBANK BITS
047964,000369:                                                                                                 #                                         RRRRRRRR = RELATIVE ADDRESS WITHIN AN EBANK.
047965,000370: 
047966,000371: 05,3643           34772        DNDUMPI           CA       ZERO                                  #  INITIALIZE DOWNLINK
047967,000372: 05,3644           54335                          TS       DUMPLOC                               #  ERASABLE DUMP
047968,000373: 05,3645           03706                 +2       TC       SENDID                                #  GO SEND ID AND SYNCH BITS
047969,000374:                                                                                                 # # Page 1102
047970,000375: 05,3646           33655                          CA       LDNDUMP1                              #  SET DNTMGOTO
047971,000376: 05,3647           54334                          TS       DNTMGOTO                              #  TO LOCATION FOR NEXT PASS
047972,000377: 05,3650           30025                          CA       TIME1                                 #  PLACE TIME1
047973,000378: 05,3651           56001                          XCH      L                                     #  INTO L
047974,000379: 05,3652           30335                          CA       DUMPLOC                               #  AND ECADR OF THIS EBANK INTO A
047975,000380: 05,3653           13635                          TCF      DNTMEXIT                              #  SEND DUMPLOC AND TIME1
047976,000381: 
047977,000382: 05,3654           03656        LDNDUMP           ADRES    DNDUMP                                
047978,000383: 05,3655           03670        LDNDUMP1          ADRES    DNDUMP1                               
047979,000384: 
047980,000385: 05,3656           34767        DNDUMP            CA       TWO                                   #  INCREMENT ECADR IN DUMPLOC
047981,000386: 05,3657           26335                          ADS      DUMPLOC                               #  TO NEXT DP WORD TO BE
047982,000387: 05,3660           74350                          MASK     LOW8                                  #  DUMPED AND SAVE IT.
047983,000388: 05,3661           10000                          CCS      A                                     #  IS THIS THE BEGINNING OF A NEW EBANK
047984,000389: 05,3662           13672                          TCF      DNDUMP2                               #  NO- THEN CONTINUE DUMPING
047985,000390: 05,3663           30335                          CA       DUMPLOC                               #  YES- IS THIS THE END OF THE
047986,000391: 05,3664           74754                          MASK     BIT13                                 #  SECOND COMPLETE ERASABLE DUMP?
047987,000392: 05,3665           00006                          EXTEND                                         
047988,000393: 05,3666           13645                          BZF      DNDUMPI    +2                         #  NO - GO BACK AND INITIALZE NEXT BANK
047989,000394: 05,3667           13446                          TCF      DNPHASE1                              #  YES - SEND DOWNLIST AGAIN
047990,000395: 05,3670           33654        DNDUMP1           CA       LDNDUMP                               #  SET DNTMGOTO
047991,000396: 05,3671           54334                          TS       DNTMGOTO                              #  FOR WORDS 3 TO 256D OF CURRENT EBANK
047992,000397: 
047993,000398: 05,3672           30335        DNDUMP2           CA       DUMPLOC                               
047994,000399: 05,3673           54003                          TS       EBANK                                 #  SET EBANK
047995,000400: 05,3674           74350                          MASK     LOW8                                  #  ISOLATE RELATIVE ADDRESS.
047996,000401: 05,3675           54002                          TS       Q                                     #  (NOTE: MASK INSTRUCTION IS USED TO PICK
047997,000402: 05,3676           34771                          CA       NEG0                                  #  UP ERASABLE REGISTERS TO THAT EDITING
047998,000403: 05,3677           54001                          TS       L                                     #  REGISTERS 20-23 WILL NOT BE ALTERED.)
047999,000404: 05,3700           50002                          INDEX    Q                                     
048000,000405: 05,3701  E3,1400                                 EBANK=   1400                                  #  PICK UP LOW ORDER REGISTER OF PAIR
048001,000406: 05,3701           71401                          MASK     1401                                  #  OF ERASABLE REGISTERS.
048002,000407: 05,3702           56001                          XCH      L                                     
048003,000408: 05,3703           50002                          INDEX    Q                                     #  PICK UP HIGH ORDER REGISTER OF PAIR
048004,000409: 05,3704           71400                          MASK     1400                                  #  OF ERASABLE REGISTERS.
048005,000410: 05,3705     0337                                 EBANK=   DNTMBUFF                              
048006,000411: 05,3705           13635                          TCF      DNTMEXIT                              #  GO SEND THEM
048007,000412: 
048008,000413: 05,3706           00006        SENDID            EXTEND                                         #  **ENTRANCE USED BY ERASABLE DUMP PROG.**
048009,000414: 05,3707           22334                          QXCH     DNTMGOTO                              #  SET DNTMGOTO SO NEXT TIME PROG WILL GO
048010,000415: 05,3710           35041                          CAF      ERASID                                #  TO LOCATION FOLLOWING 'TC SENDID'
048011,000416: 
048012,000417: 05,3711           54061                 +3       TS       ITEMP1                                #  ** ENTRANCE USED BY REGULAR DOWNLINK
048013,000418:                                                                                                 #                               PROGRAM  **
048014,000419: 05,3712           03536                          TC       WOZERO                                #  GO SET WORD ORDER CODE TO ZERO
048015,000420: 05,3713           32000                          CAF      LOWIDCOD                              #  PLACE SPECIAL ID CODE INTO L
048016,000421: 05,3714           56001                          XCH      L                                     #  AND ID BACK INTO A
048017,000422: 05,3715           30061                          CA       ITEMP1                                
048018,000423: 05,3716           13635                          TCF      DNTMEXIT                              #  SEND DOWNLIST ID CODE(S).
048019,000424: 
048020,000425:                                                                                                 # # Page 1103 (empty page)
048021,000426: 

End of include-file DOWN-TELEMETRY_PROGRAM.agc.  Parent file is MAIN.agc