Source Code

These source-code files were derived from scans of the Colossus 237 (Apollo 8 Command Module) program listing from the private collection of original AGC developer Fred Martin. Scanning was by Ron Burkey. Pre-existing Colossus 249 (Apollo 9 CM) source files were used as a template, and changes between Colossus 249 and Colossus 237 were manually transcribed by a team of volunteers. Note that the page images presented online are of reduced quality, and that additional images are 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 237 OF AGC PROGRAM COLOSSUS 
	BY NASA 2021111-031  1:17 AUG. 24, 1968
Note that the date is the date of the printout, not the date of the program revision.

039193,000002:                                                                                                  ## Copyright:   Public domain.
039194,000003:                                                                                                  ## Filename:    TVCEXECUTIVE.agc
039195,000004:                                                                                                  ## Purpose:     Part of the source code for Colossus build 237.
039196,000005:                                                                                                  ##              This is for the Command Module's (CM) Apollo Guidance
039197,000006:                                                                                                  ##              Computer (AGC), for Apollo 8.
039198,000007:                                                                                                  ## Assembler:   yaYUL
039199,000008:                                                                                                  ## Contact:     Jim Lawton <jim DOT lawton AT gmail DOT com>
039200,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
039201,000010:                                                                                                  ## Page Scans:  www.ibiblio.org/apollo/ScansForConversion/Colossus237/
039202,000011:                                                                                                  ## Mod history: 2011-03-06 JL   Adapted from corresponding Colossus 249 file.
039203,000012:                                                                                                  ##              2017-01-01 RSB  Proofed comment text using octopus/ProoferComments,
039204,000013:                                                                                                  ##                              and fixed errors found.
039205,000014:                                                                                                  ##              2017-01-20 RSB  Fixed comment-text errors noted while diff'ing
039206,000015:                                                                                                  ##                              vs Colossus 249.
039207,000016: 

Page 900

039209,000018:                                                                                                  #  PROGRAM NAME.... TVCEXECUTIVE, CONSISTING OF TVCEXEC, NEEDLEUP, VARGAINS
039210,000019:                                                                                                  #                   REPCHEK, SWTCHOVR, CG.CORR, STRKUP, TVCEXFIN, ETC.
039211,000020:                                                                                                  #  LOG SECTION....TVCEXECUTIVE     SUBROUTINE ....DAPCSM
039212,000021:                                                                                                  #  MOD BY ENGEL                    DATE 23 OCT, 1967
039213,000022: 
039214,000023:                                                                                                  #  FUNCTIONAL DESCRIPTION....
039215,000024: 
039216,000025:                                                                                                  #      *A SELF-PERPETUATING WAITLIST TASK AT 1/2 SECOND INTERVALS WHICH:
039217,000026:                                                                                                  #       PREPARES THE ROLL TVC DAP LADDERS
039218,000027:                                                                                                  #       PREPARES THE ROLL FDAI NEEDLE (FLY-TO  OGA ERROR)
039219,000028:                                                                                                  #       PREPARES THE ROLL PHASE PLANE  OGAERR  (FLY-FROM  OGA ERROR)
039220,000029:                                                                                                  #       PREPARES THE TVC ROLLDAP TASK WAITLIST CALL (3 CS DELAY)
039221,000030:                                                                                                  #       UPDATES THE NEEDLES DISPLAY
039222,000031:                                                                                                  #       IMPLEMENTS VARIABLE GAINS AND VARIABLE VEHICLE MASS
039223,000032:                                                                                                  #       PROVIDES FOR SWITCHOVER
039224,000033:                                                                                                  #       PROVIDES FOR A SINGLE-SHOT THRUST MISALIGNMENT CORRECTION AT SWTOVR
039225,000034:                                                                                                  #       PROVIDES FOR REPETITIVE THRUST MISALIGNMENT CORRECTIONS FOLLOWING
039226,000035:                                                                                                  #            SWITCHOVER
039227,000036:                                                                                                  #       PERFORMS CERTAIN STROKE TEST FUNCTIONS
039228,000037: 
039229,000038:                                                                                                  #  CALLING SEQUENCE....
039230,000039: 
039231,000040:                                                                                                  #      *TVCEXEC CALLED AS A WAITLIST TASK, IN PARTICULAR BY TVCINIT4 AND BY
039232,000041:                                                                                                  #       ITSELF, BOTH AT 1/2 SECOND INTERVALS
039233,000042: 
039234,000043:                                                                                                  #  NORMAL EXIT MODE.... TASKOVER
039235,000044: 
039236,000045:                                                                                                  #  ALARM OR ABORT EXIT MODES.... NONE
039237,000046: 
039238,000047:                                                                                                  #  SUBROUTINES CALLED....NEEDLER, S40.15, MASSPROP, TASKOVER, IBNKCALL
039239,000048: 
039240,000049:                                                                                                  #  OTHER INTERFACES....
039241,000050: 
039242,000051:                                                                                                  #      *TVCRESTART PACKAGE FOR RESTARTS
039243,000052:                                                                                                  #      *PITCHDAP, YAWDAP FOR VARIABLE GAINS AND ENGINE TRIM ANGLES
039244,000053:                                                                                                  #      *S40.8 FOR KPRIMEDT AT SWITCHOVER
039245,000054: 
039246,000055:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED....
039247,000056: 
039248,000057:                                                                                                  #      *SEE TVCDAPON....TVCINIT4
039249,000058:                                                                                                  #      *VARK AND 1/CONACC (S40.15 OF R03)
039250,000059:                                                                                                  #      *V68 INITIALIZATION PRIOR TO SWITCHOVER OR FOLLOWING A RESTART
039251,000060:                                                                                                  #       DURING A STROKE TEST, IF STROKE TEST FUNCTIONS ARE TO BE TESTED
039252,000061:                                                                                                  #      *PAD LOADS EREPFRAC, ECORFRAC ETC.
039253,000062:                                                                                                  #      *BITS 15,14 OF FLAGWRD6 (T5 BITS)
039254,000063:                                                                                                  #      *TVCEXPHS FOR RESTARTS
039255,000064:                                                                                                  #      *ENGINE-ON BIT (11.13) FOR RESTARTS
039256,000065:                                                                                                  #      *CDUX, OGAD
039257,000066: 
039258,000067:                                                                                                  #  OUTPUT....

Page 901

039260,000069:                                                                                                  #      *ROLL TVC DAP LADDERS, FDAI NEEDLE (AK), AND PHASE PLANE OGAERR
039261,000070:                                                                                                  #      *VARIABLE GAINS FOR PITCH/YAW AND ROLL TVC DAPS
039262,000071:                                                                                                  #      *SINGLE-SHOT AND REPETITIVE CORRECTIONS TO ENGINE TRIM ANGLES
039263,000072:                                                                                                  #       PACTOFF AND YACTOFF
039264,000073:                                                                                                  #      *CHANGES TO DAP SAMPLE RATES, DAP GAINS, AND STEERING-GAIN SCALING
039265,000074:                                                                                                  #       AT (LEM-ON) SWITCHOVER
039266,000075:                                                                                                  #      *STROKER, 4 SECONDS AFTER SWITCHOVER WHEN PRIOR V66, OR 2.5
039267,000076:                                                                                                  #       SECONDS AFTER RESTART DURING A STROKE TEST
039268,000077: 
039269,000078:                                                                                                  #  DEBRIS.... MUCH, BUT SHAREABLE WITH RCS/ENTRY, ALL IN EBANK6
039270,000079: 
039271,000080: 
039272,000081: 16,2660                                           BANK     16                                    
039273,000082: 16,2000                                           SETLOC   DAPROLL                               
039274,000083: 16,2000                                           BANK                                           
039275,000084: 16,2660  E6,1742                                  EBANK=   BZERO                                 
039276,000085: 16,2660                                           COUNT*   $$/TVCX                               
039277,000086: 16,2660           40102        TVCEXEC            CS       FLAGWRD6                              #  CHECK FOR TERMINATION (BITS 15,14 READ
039278,000087: 16,2661           74105                           MASK     OCT60000                              #       10 FROM TVCDAPON TO RCSDAPON)
039279,000088: 16,2662           00006                           EXTEND                                         
039280,000089: 16,2663           63142                           BZMF     TVCEXFIN                              #  TERMINATE
039281,000090: 
039282,000091: 16,2664           34731                           CAF      .5SEC                                 #  W.L. CALL TO PERPETUATE TVCEXEC
039283,000092: 16,2665           05140                           TC       WAITLIST                              
039284,000093: 16,2666  E6,1742                                  EBANK=   BZERO                                 
039285,000094: 16,2666           02660 34066                     2CADR    TVCEXEC                               
039286,000095: 
039287,000096: 16,2670           30032        ROLLPREP           CAE      CDUX                                  #  UPDATE ROLL LADDERS (NO NEED TO RESTART-
039288,000097: 16,2671           57672                           XCH      OGANOW                                #       PROTECT, SINCE ROLL DAPS RE-START)
039289,000098: 16,2672           57673                           XCH      OGAPAST                               
039290,000099: 
039291,000100: 16,2673           31450                           CAE      OGAD                                  #  PREPARE ROLL FDAI NEEDLE WITH FLY-TO
039292,000101: 16,2674           00006                           EXTEND                                         #       ERROR (COMMAND - MEASURED)
039293,000102: 16,2675           21672                           MSU      OGANOW                                
039294,000103: 16,2676           55476                           TS       AK                                    #  FLY-TO OGA ERROR, SC.AT B-1 REVS
039295,000104: 
039296,000105: 16,2677           00006                           EXTEND                                         #  PREPARE ROLL DAP PHASE PLANE  OGAERR
039297,000106: 16,2700           77705                           MP       -BIT14                                
039298,000107: 16,2701           55674                           TS       OGAERR                                #  PHASE-PLANE (FLY-FROM) OGAERROR,
039299,000108:                                                                                                  #       SC.AT B+0 REVS
039300,000109: 
039301,000110: 16,2702           36214                           CAF      THREE                                 #  SET UP ROLL DAP TASK (ALLOW SOME TIME)
039302,000111: 16,2703           05140                           TC       WAITLIST                              
039303,000112: 16,2704  E6,1742                                  EBANK=   BZERO                                 
039304,000113: 16,2704           03312 34066                     2CADR    ROLLDAP                               
039305,000114: 16,2706           04633        NEEDLEUP           TC       IBNKCALL                              #  DO A NEEDLES UPDATE (RETURNS AFTER CADR)
039306,000115: 16,2707           42404                           CADR     NEEDLER                               #       (NEEDLES RESTARTS ITSELF)
039307,000116: 

Page 902

039309,000118: 16,2710           34676        VARGAINS           CAF      BIT13                                 #  CHECK ENGINE-ON BIT TO INHIBIT VARIABLE
039310,000119: 16,2711           00006                           EXTEND                                         #       GAINS AND MASS IF ENGINE OFF
039311,000120: 16,2712           02011                           RAND     DSALMOUT                              #  CHANNEL 11
039312,000121: 16,2713           10000                           CCS      A                                     
039313,000122: 16,2714           12720                           TCF      +4                                    #      ON , SO OK TO UPDATE GAINS AND MASS
039314,000123: 16,2715           34711                 +5        CAF      TWO                                   #       OFF, SO BYPASS MASS/GAIN UPDATES,
039315,000124: 16,2716           55661                           TS       TVCEXPHS                              #            ALSO ENTRY FROM CCS BELOW WITH
039316,000125: 16,2717           12750                           TCF      SWT/COR                               #            VCNTR = -0 (V97 R40 ENGFAIL)
039317,000126: 
039318,000127: 16,2720           11653                           CCS      VCNTR                                 #       TEST FOR GAIN UPDATE TIME
039319,000128: 16,2721           12725                           TCF      +4                                    #            NOT YET
039320,000129: 16,2722           12731                           TCF      GAINCHNG                              #            NOW
039321,000130: 16,2723           12723                           TCF      +0                                    #            NOT USED
039322,000131: 16,2724           12715                           TCF      VARGAINS   +5                         #            NO, LOTHRUST (S40.8 R40)
039323,000132: 
039324,000133: 16,2725           55663                 +4        TS       VCNTRTMP                              #       PROTECT VCNTR AND
039325,000134: 16,2726           31474                           CAE      CSMMASS                               #      CSMMASS DURING AN IMPULSIVE BURN
039326,000135: 16,2727           55662                           TS       MASSTMP                               
039327,000136: 16,2730           12741                           TCF      EXECCOPY                              
039328,000137: 
039329,000138: 16,2731           04633        GAINCHNG           TC       IBNKCALL                              #  UPDATE IXX, IAVG, IAVG/TLX
039330,000139: 16,2732           13232                           CADR     FIXCW                                 #  MASSPROP ENTRY  (ALREADY INITIALIZED)
039331,000140: 16,2733           03145                           TC       S40.15                                #  UPDATE 1/CONACC, VARK
039332,000141: 16,2734           41647                           CS       TENMDOT                               #  UPDATE MASS FOR NEXT 10 SEC. OF BURN
039333,000142: 16,2735           61474                           AD       CSMMASS                               
039334,000143: 16,2736           55662                           TS       MASSTMP                               #  KG B+16
039335,000144: 
039336,000145: 16,2737           34374                           CAF      NINETEEN                              #  RESET THE VARIABLE-GAIN UPDATE COUNTER
039337,000146: 16,2740           55663        NOUPDATE           TS       VCNTRTMP                              #  (COUNTDOWN, FROM VARGAINS +1)
039338,000147: 
039339,000148: 16,2741           25661        EXECCOPY           INCR     TVCEXPHS                              #  RESTART-PROTECT THE COPYCYCLE        (1)
039340,000149: 
039341,000150: 16,2742           31662                           CAE      MASSTMP                               #  CSMMASS KG B+16
039342,000151: 16,2743           55474                           TS       CSMMASS                               
039343,000152: 
039344,000153: 16,2744           31663                           CAE      VCNTRTMP                              #  VCNTR
039345,000154: 16,2745           55653                           TS       VCNTR                                 
039346,000155: 16,2746           55444                           TS       V97VCNTR                              #  FOR ENGFAIL (R41) MASS UPDATES AT SPSOFF
039347,000156: 
039348,000157: 16,2747           25661                           INCR     TVCEXPHS                              #  COPYCYCLE OVER                       (2)
039349,000158: 
039350,000159: 16,2750           11447        SWT/COR            CCS      CNTR                                  #  CHECK FOR SWITCHOVER/CG.CORRECTION
039351,000160: 16,2751           12755                           TCF      +4                                    #       NOT YET
039352,000161: 16,2752           12773                           TCF      SWTCHOVR                              #       NOW
039353,000162: 16,2753           12761                           TCF      REPCHEK                               #       PRIOR SWITCHOVER (OR NONE)
039354,000163: 16,2754           12773                           TCF      SWTCHOVR                              #       NOW (1/2 SEC SWITCHOVER, ONLY)
039355,000164: 
039356,000165: 16,2755           55707                 +4        TS       CNTRTMP                               #  COUNT DOWN
039357,000166: 16,2756           34716                           CAF      SEVEN                                 #  SETUP TVCEXPHS FOR ENTRY AT CNTRCOPY
039358,000167: 16,2757           55661                           TS       TVCEXPHS                              

Page 903

039360,000169: 16,2760           13122                           TCF      CNTRCOPY                              
039361,000170: 
039362,000171: 16,2761           31652        REPCHEK            CAE      REPFRAC                               #  CHECK FOR REPETITIVE UPDATES
039363,000172: 16,2762           00006                           EXTEND                                         
039364,000173: 16,2763           62770                           BZMF     +5                                    #       NO   (NEG OR +-ZERO)
039365,000174: 16,2764           55446                           TS       TEMPDAP    +1                         #       YES, SET UP CORRECTION FRACTION
039366,000175: 16,2765           34715                           CAF      FIVE                                  #            ADVANCE TVCEXPHS
039367,000176: 16,2766           55661                           TS       TVCEXPHS                              
039368,000177: 16,2767           13053                           TCF      CORSETUP                              
039369,000178: 
039370,000179: 16,2770           34707                 +5        CAF      EIGHT                                 
039371,000180: 16,2771           55661                           TS       TVCEXPHS                              
039372,000181: 16,2772           13125                           TCF      STRKUP                                
039373,000182: 
039374,000183: 16,2773           34676        SWTCHOVR           CAF      BIT13                                 #  CHECK ENGINE-ON BIT, NOT PERMITTING
039375,000184: 16,2774           00006                           EXTEND                                         #       SWITCHOVER DURING ENGINE-SHUTDOWN
039376,000185: 16,2775           02011                           RAND     DSALMOUT                              #       TAILOFF
039377,000186: 16,2776           10000                           CCS      A                                     
039378,000187: 16,2777           13001                           TCF      +2                                    #  OK TO SWITCHOVER
039379,000188: 16,3000           13142                           TCF      TVCEXFIN                              #  DONT SWITCHOVER, TERMINATE
039380,000189: 
039381,000190: 16,3001           40105                           CS       FLAGWRD9                              #  SET SWITCHOVER FLAG (SWTOVER) FOR DWNLNK
039382,000191: 16,3002           74674                           MASK     BIT15                                 #       AND POST-BURN TRIM UPDATES (SEE
039383,000192: 16,3003           26105                           ADS      FLAGWRD9                              #       ..BESTTRIM.. (P40-P47))
039384,000193: 
039385,000194: 16,3004           31466                           CAE      DAPDATR1                              #  SWITCHOVER....CHECK FOR LEM-OFF/ON
039386,000195: 16,3005           74676                           MASK     BIT13                                 #  (NOTE, SHOWS LEM-OFF)
039387,000196: 16,3006           00006                           EXTEND                                         
039388,000197: 16,3007           13013                           BZF      GAINDOWN                              #  LEM-ON....FULL SWITCHOVER/CG.CORRECTION
039389,000198: 
039390,000199: 16,3010           34710                           CAF      FOUR                                  #  LEM-OFF....NO SWITCHOVER, JUST CG.CORR.
039391,000200: 16,3011           55661                           TS       TVCEXPHS                              
039392,000201: 16,3012           13050                           TCF      TEMPSET                               
039393,000202: 
039394,000203: 16,3013           31420        GAINDOWN           CAE      ETVCDT/2                              #  LEM-ON.... DROP GAIN BY (OLDTVCDT/8CS)SQ
039395,000204: 16,3014           00006                           EXTEND                                         
039396,000205: 16,3015           74706                           MP       BIT5                                  
039397,000206: 16,3016           22000                           LXCH     A                                     
039398,000207: 16,3017           00006                           EXTEND                                         
039399,000208: 16,3020           70000                           MP       A                                     
039400,000209: 16,3021           22000                           LXCH     A                                     #  (TVCDT/8CS)SQD, SC.AT 8+2
039401,000210: 
039402,000211: 16,3022           00006                           EXTEND                                         #  PREPARE NEW GAIN CONSTANT
039403,000212: 16,3023           71646                           MP       KTLX/I                                
039404,000213: 16,3024           20001                           DDOUBL                                         
039405,000214: 16,3025           20001                           DDOUBL                                         
039406,000215: 16,3026           55702                           TS       TKTLX/I                               #  (FOR COPYCYCLE)
039407,000216: 
039408,000217: 16,3027           25661        SWTCOPY            INCR     TVCEXPHS                              #  RESTART-PROTECT THE COPYCYCLE        (3)
039409,000218: 

Page 904

039411,000220: 16,3030           37677                           CAF      OCT37774                              #  LEM-ON ONLY..... T5 TIMER
039412,000221: 16,3031           55635                           TS       T5TVCDT                               
039413,000222: 
039414,000223: 16,3032           31414                           CAE      EKPRIME    +1                         #  PREPARE KPRIMEDT FOR 80MS DAP, USING
039415,000224: 16,3033           60000                           DOUBLE                                         
039416,000225: 16,3034           60000                           DOUBLE                                         
039417,000226: 16,3035           55644                           TS       KPRIMEDT                              #       (KPRIMEDT+1 IS ZERO)
039418,000227: 
039419,000228:                                                                                                  #                                          SCALING OF OMEGAC HAS CHANGED, BUT NO
039420,000229:                                                                                                  #                                               CHANGE OF REGISTERS.  RATE COMMANDS
039421,000230:                                                                                                  #                                               ARE LOW BY  (OLD TVCDT)/80,  UNTIL
039422,000231:                                                                                                  #                                               NEXT S40.6 COMPUTATION, WHICH USES
039423,000232:                                                                                                  #                                               THE NEW  KPRIMEDT.
039424,000233: 
039425,000234: 16,3036           31702                           CAE      TKTLX/I                               #  GAIN CONSTANT
039426,000235: 16,3037           55646                           TS       KTLX/I                                
039427,000236: 
039428,000237: 16,3040           03154                           TC       S40.15     +7                         #  UPDATE VARK (ONLY, NO CHANGE 1/CONACC)
039429,000238: 
039430,000239: 16,3041           11614        STRKCALL           CCS      STROKER                               #  CHECK STROKER FOR VERB 68 INDICATION
039431,000240: 16,3042           13047                           TCF      +5                                    #       STROKE TEST IN PROGRESS (80MS DAP)
039432,000241: 16,3043           13047                           TCF      +4                                    #       +0 SAYS NO VERB 68 YET
039433,000242: 16,3044           13047                           TCF      +3                                    #       STROKE TEST IN PROGRESS (80MS DAP)
039434,000243: 16,3045           34707                           CAF      EIGHT                                 #       -0 SAYS PRIOR VERB68, SO START
039435,000244: 16,3046           55664                           TS       STRKTIME                              #            STROKE TEST IN 4 SECONDS
039436,000245: 
039437,000246: 16,3047           25661                 +543      INCR     TVCEXPHS                              #  COPYCYCLE OVER (SWTCHOVR ENTRY NEXT) (4)
039438,000247: 
039439,000248: 16,3050           31422        TEMPSET            CAE      ECORFRAC                              #        SET UP CORRECTION FRACTION
039440,000249: 16,3051           55446                           TS       TEMPDAP    +1                         
039441,000250: 
039442,000251: 16,3052           25661                           INCR     TVCEXPHS                              #  ENTRY FROM REPCHECK AT NEXT LOCATION (5)
039443,000252: 
039444,000253: 16,3053           31466        CORSETUP           CAE      DAPDATR1                              #  CHECK FOR LEM-OFF/ON
039445,000254: 16,3054           74676                           MASK     BIT13                                 #  (NOTE, SHOWS LEM-OFF)
039446,000255: 16,3055           00006                           EXTEND                                         
039447,000256: 16,3056           13060                           BZF      +2                                    #  LEM IS ON,  PICK UP   TEMPDAP+1
039448,000257: 16,3057           31446                           CAE      TEMPDAP    +1                         #  LEM IS OFF, PICK UP 2(TEMPDAP+1)
039449,000258: 16,3060           61446                           AD       TEMPDAP    +1                         
039450,000259: 16,3061           55445                           TS       TEMPDAP                               #  CG.CORR USES TEMPDAP
039451,000260: 
039452,000261: 16,3062           37716                           CAF      NEGONE                                #  SET UP FOR CNTR = -1 (SWTCHOVR DONE)
039453,000262: 16,3063           55707                           TS       CNTRTMP                               #       (COPYCYCLE AT  .CNTRCOPY. )
039454,000263: 
039455,000264: 16,3064           00006        CG.CORR            EXTEND                                         #  PITCH TRIM-TRACKER CORRECTION
039456,000265: 16,3065           31626                           DCA      PDELOFF                               
039457,000266: 16,3066           53704                           DXCH     PACTTMP                               
039458,000267: 16,3067           41425                           CS       PACTOFF                               
039459,000268: 16,3070           61621                           AD       DELPBAR                               
039460,000269: 16,3071           00006                           EXTEND                                         

Page 905

039462,000271: 16,3072           71445                           MP       TEMPDAP                               
039463,000272: 16,3073           20001                           DDOUBL                                         
039464,000273: 16,3074           20001                           DDOUBL                                         
039465,000274: 16,3075           21704                           DAS      PACTTMP                               
039466,000275: 
039467,000276: 16,3076           00006                           EXTEND                                         
039468,000277: 16,3077           31630                           DCA      YDELOFF                               
039469,000278: 16,3100           53706                           DXCH     YACTTMP                               
039470,000279: 16,3101           41426                           CS       YACTOFF                               
039471,000280: 16,3102           61623                           AD       DELYBAR                               
039472,000281: 16,3103           00006                           EXTEND                                         
039473,000282: 16,3104           71445                           MP       TEMPDAP                               
039474,000283: 16,3105           20001                           DDOUBL                                         
039475,000284: 16,3106           20001                           DDOUBL                                         
039476,000285: 16,3107           21706                           DAS      YACTTMP                               
039477,000286: 
039478,000287: 16,3110           25661        CORCOPY            INCR     TVCEXPHS                              #  RESTART-PROTECT THE COPYCYCLE        (6)
039479,000288: 
039480,000289: 16,3111           00006                           EXTEND                                         #  TRIM-ESTIMATES, AND
039481,000290: 16,3112           31704                           DCA      PACTTMP                               
039482,000291: 16,3113           55425                           TS       PACTOFF                               #        TRIMS
039483,000292: 16,3114           53626                           DXCH     PDELOFF                               
039484,000293: 
039485,000294: 16,3115           00006                           EXTEND                                         
039486,000295: 16,3116           31706                           DCA      YACTTMP                               
039487,000296: 16,3117           55426                           TS       YACTOFF                               
039488,000297: 16,3120           53630                           DXCH     YDELOFF                               
039489,000298: 
039490,000299: 16,3121           25661                           INCR     TVCEXPHS                              #  COPYCYCLE OVER (SWT/COR ENTRY NEXT)  (7)
039491,000300: 
039492,000301: 16,3122           31707        CNTRCOPY           CAE      CNTRTMP                               #  UPDATE CNTR (RESTARTS OK, FOLLOWS CPYCY)
039493,000302: 16,3123           55447                           TS       CNTR                                  
039494,000303: 
039495,000304: 16,3124           25661                           INCR     TVCEXPHS                              #  ENTRY FROM REPCHECK AT NEXT LOCATION (8)
039496,000305: 
039497,000306: 16,3125           11664        STRKUP             CCS      STRKTIME                              #  CHECK STROKE TEST START TIME
039498,000307: 16,3126           13131                           TCF      +3                                    #       IN 4SEC DELAY AFTER SWITCHOVER
039499,000308: 16,3127           13133                           TCF      STRKNOW                               #       START STROKE TEST NOW....
039500,000309: 16,3130           13142                           TCF      TVCEXFIN                              #       NO STROKE TEST REQUEST YET
039501,000310: 
039502,000311: 16,3131           55710                           TS       STRKTTMP                              #  COUNT DOWN
039503,000312: 16,3132           13137                           TCF      STRKTCPY                              
039504,000313: 
039505,000314: 16,3133           31412        STRKNOW            CAE      ESTROKER                              #  START THE STROKE TEST NOW....
039506,000315: 16,3134           55614                           TS       STROKER                               
039507,000316: 16,3135           37716                           CAF      NEGONE                                #  KILL THE STROKE TEST CALL
039508,000317: 16,3136           55710                           TS       STRKTTMP                              
039509,000318: 
039510,000319: 16,3137           25661        STRKTCPY           INCR     TVCEXPHS                              #  RESTART-PROTECT THE COPYCYCLE        (9)
039511,000320: 

Page 906

039513,000322: 16,3140           31710                           CAE      STRKTTMP                              
039514,000323: 16,3141           55664                           TS       STRKTIME                              
039515,000324: 
039516,000325: 16,3142           34714        TVCEXFIN           CAF      ZERO                                  #  RESET TVCEXPHS
039517,000326: 16,3143           55661                           TS       TVCEXPHS                              
039518,000327: 
039519,000328: 16,3144           15213                           TCF      TASKOVER                              #  OVER AND OUT
039520,000329: 

Page 907

039522,000331:                                                                                                  #  NAME     S40.15 INERTIA COMPUTATIONS
039523,000332: 16,3145  E6,1650                                  EBANK=   1/CONACC                              
039524,000333: 
039525,000334: 16,3145           31470        S40.15             CAE      IXX                                   #  COMPUTE 1/CONACC (RACC)....IXX SC.AT
039526,000335: 16,3146           00006                           EXTEND                                         #       B+20  KG M SQD
039527,000336: 16,3147           73164                           MP       2PI/M                                 #  2PI/M, SC.AT  1/(B+8 N M)
039528,000337: 16,3150           20001                           DDOUBL                                         
039529,000338: 16,3151           20001                           DDOUBL                                         
039530,000339: 16,3152           20001                           DDOUBL                                         
039531,000340: 16,3153           55650                           TS       1/CONACC                              #  SC.AT  B+9  SEC SQD / REV
039532,000341: 
039533,000342: 16,3154           31646                 +7        CAE      KTLX/I                                #  COMPUTE VARK, SCALING IN THE KTLX/I FOR
039534,000343: 16,3155           00006                           EXTEND                                         #       LM-OFF,ON. ENTRY FROM SWITCHOVER
039535,000344: 16,3156           71472                           MP       IAVG/TLX                              #       SCALED AT B+2  SECONDS-SQUARED
039536,000345: 16,3157           20001                           DDOUBL                                         #       SCALING
039537,000346: 16,3160           20001                           DDOUBL                                         
039538,000347: 16,3161           20001                           DDOUBL                                         
039539,000348: 16,3162           55651                           TS       VARK                                  #       LEM-OFF KPGEN3(0) OR LEM-ON VARK(0)
039540,000349: 
039541,000350: 16,3163           00002                           TC       Q                                     
039542,000351: 
039543,000352: 16,3164           33074        2PI/M              DEC      .00331017  B+8                        #  2PI/M, SC.AT 1/(B+8 N M)

End of include-file TVCEXECUTIVE.agc.  Parent file is MAIN.agc