Source Code

These source-code files are part of a reconstructed copy of Comanche 051, the original release of the Apollo 11 Command Module (CM) Apollo Guidance Computer (AGC) software.

The reconstruction began with source code of Comanche 055 previously transcribed from a digitized copy of that program. The code was then updated by undoing changes related to the R-2 lunar potential model, using hints from program comments and change-indicating asterisks in the Comanche 055 listing as a guide. The reconstruction was verified by matching memory-bank checksums to those listed in drawing 2021153D. Note that page numbers in the reconstructed code match those on the Comanche 055 printout, although the added code would likely have changed page numbers for a real Comanche 051 listing.

Comments from the original source code are prefixed with a single '#' symbol, whereas comments added later are prefixed by "##" or "###". Report any errors noted by creating an issue report at the Virtual AGC project's GitHub repository.

035700,000002:                                                                                                  ## Copyright:   Public domain.
035701,000003:                                                                                                  ## Filename:    SERVICER207.agc
035702,000004:                                                                                                  ## Purpose:     A section of Comanche revision 051.
035703,000005:                                                                                                  ##              It is part of the reconstructed source code for the
035704,000006:                                                                                                  ##              original release of the flight software for the Command
035705,000007:                                                                                                  ##              Module's (CM) Apollo Guidance Computer (AGC) for Apollo 11.
035706,000008:                                                                                                  ##              The code has been recreated from a copy of Comanche 055. It
035707,000009:                                                                                                  ##              has been adapted such that the resulting bugger words
035708,000010:                                                                                                  ##              exactly match those specified for Comanche 51 in NASA drawing
035709,000011:                                                                                                  ##              2021153D, which gives relatively high confidence that the
035710,000012:                                                                                                  ##              reconstruction is correct.
035711,000013:                                                                                                  ## Reference:   pp. 819-836
035712,000014:                                                                                                  ## Assembler:   yaYUL
035713,000015:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
035714,000016:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
035715,000017:                                                                                                  ## Mod history: 2019-07-30 MAS  Created from Comanche 55.
035716,000018: 

Page 819

035718,000020:                                                                                                  #  PROGRAM NAME -        PREREAD, READACCS, SERVICER, AVERAGE G.
035719,000021:                                                                                                  #  MOD NO. 00 BY M. HAMILTON     DEC. 12, 1966
035720,000022: 
035721,000023:                                                                                                  #  FUNCTIONAL DESCRIPTION
035722,000024: 
035723,000025:                                                                                                  #  THE ROUTINES DESCRIBED BELOW ARE USED TO CALCULATE VALUES OF RN, VN, AND GDT/2 DURING ACCELERATED FLIGHT.
035724,000026:                                                                                                  #  THE SEVERAL ROUTINES COMPRISE A PACKAGE AND ARE NOT MEANT TO BE USED AS SEPARATE SUBROUTINES.
035725,000027: 
035726,000028:                                                                                                  #  GENERAL REFERENCES TO  SERVICER  OR  AVERAGE G  ARE UNDERSTOOD TO REFER TO THE ENTIRE SET OF ROUTINES INCLUDING
035727,000029:                                                                                                  #  READACCS, SERVICER, AVERAGE G, INTEREAD, SMOOTHER, AND ANY ADDITIONAL ROUTINES ATTACHED AT AVGEXIT (SEE BELOW).
035728,000030: 
035729,000031:                                                                                                  #  PROGRAMS INITIATING SERVICER ARE REQUIRED TO MAKE A WAITLIST CALL FOR PREREAD (OR, IF LIFTOFF, FOR BIBIBIAS)
035730,000032:                                                                                                  #  AT 2 SECONDS BEFORE THE FIRST AVERAGE G UPDATE IN ORDER TO INITIALIZE THE SEQUENCE, WHICH WILL RECUR EVERY
035731,000033:                                                                                                  #  2 SECONDS FROM THAT TIME ON AS LONG AS AVEGFLAG REMAINS SET.
035732,000034: 
035733,000035:                                                                                                  #  THE USE OF ERASABLE AVGEXIT ALLOWS VARIOUS ROUTINES TO BE PERFORMED AS PART OF THE NORMAL CYCLE (SEE
035734,000036:                                                                                                  #  EXPLANATION OF AVGEXIT BELOW).
035735,000037: 
035736,000038:                                                                                                  #  DESCRIPTIONS OF INDIVIDUAL ROUTINES FOLLOW.
035737,000039: 
035738,000040:                                                                                                  #        PREREAD
035739,000041: 
035740,000042:                                                                                                  #                PREVIOUSLY EXTRAPOLATED VALUES COPIED FROM RN1, VN1, AND PIPTIME1 INTO RN, VN, AND PIPTIME.
035741,000043:                                                                                                  #                LASTBIAS JOB SCHEDULED.
035742,000044:                                                                                                  #                PIPS READ AND CLEARED VIA PIPASR SUBROUTINE.
035743,000045:                                                                                                  #                AVERAGE G FLAG SET ON.
035744,000046:                                                                                                  #                DRIFT FLAG SET OFF.
035745,000047:                                                                                                  #                V37 FLAG SET ON.
035746,000048:                                                                                                  #                INITIALIZATION OF       1) THRUST MONITOR (DVMON) - DVCNTR SET TO ONE.
035747,000049:                                                                                                  #                                        2) TOTAL ACCUMULATED DELV VALUE (DVTOTAL) - SET TO ZERO.
035748,000050:                                                                                                  #                                        3) AXIS VECTOR (AXIS) - SET TO (.5,0,0).
035749,000051:                                                                                                  #                NORMLIZE JOB SCHEDULED.
035750,000052:                                                                                                  #                READACCS TASK CALLED IN 2 SECONDS.
035751,000053: 
035752,000054:                                                                                                  #        NORMLIZE
035753,000055: 
035754,000056:                                                                                                  #                GDT/2 INITIALIZED VIA CALCGRAV SUBROUTINE.
035755,000057: 
035756,000058:                                                                                                  #        READACCS
035757,000059: 
035758,000060:                                                                                                  #                IF ONMON FLAG SET QUIKREAD ROUTINE IS PERFORMED BEFORE PIPASR ZEROS THE PIPA REGISTERS, AND THE 1/2 SEC
035759,000061:                                                                                                  #                ONMONITOR LOOP IS INITIATED TO PROVIDE DOWNLINK INFORMATION DURING ENTRY.
035760,000062:                                                                                                  #                PIPS READ AND CLEARED BY PIPASR SUBROUTINE.
035761,000063:                                                                                                  #                IF CM/DSTBY IS ON, ENTRY VARIABLES INITIALIZED AND SETJTAG TASK CALLED.

Page 820

035763,000065: 
035764,000066:                                                                                                  #                IF AVERAGEG FLAG ON     READACCS CALLED TO RECYCLE IN 2 SECONDS.
035765,000067:                                                                                                  #                IF AVERAGEG FLAG OFF    AVERAGE G EXIT (AVGEXIT) SET TO 2CADR AVGEND FOR FINAL PASS.
035766,000068:                                                                                                  #                SERVICER JOB SCHEDULED.
035767,000069:                                                                                                  #                TEST CONNECTOR OUTBIT TURNED ON.
035768,000070: 
035769,000071:                                                                                                  #        ONMNITOR
035770,000072: 
035771,000073:                                                                                                  #                A SEQUENCE OF THREE PASSES THROUGH QUICKREAD FOLLOWING A CALL TO READACCS WITH ONMONFLG SET AT 1/2 
035772,000074:                                                                                                  #                SEC INTERVALS.  INTERVALS ARE COUNTED OUT BY PIPCTR, INITIALISED AT 3 BY READACCS
035773,000075: 
035774,000076:                                                                                                  #        QUIKREAD
035775,000077: 
035776,000078:                                                                                                  #                READS CURRENT PIPS INTO X,Y,ZPIPBUF.  READS OLD X,Y,ZPIPBUF INTO X,Y,ZOLDBUF.  VALUES ARE SENT TO
035777,000079:                                                                                                  #                DOWNLIST DURING ENTRY.
035778,000080: 
035779,000081:                                                                                                  #        SERVICER
035780,000082: 
035781,000083:                                                                                                  #                DELV VALUES CHECKED TO DETECT RUNAWAY PIP -
035782,000084:                                                                                                  #                        IF BAD PIP      1) ALARM SENT.
035783,000085:                                                                                                  #                                        2) COMPENSATION, DVTOTAL ACCUMULATION, AND DVMON BYPASSED.  CONTROL
035784,000086:                                                                                                  #                                           TRANSFERRED TO AVERAGE G.
035785,000087:                                                                                                  #                PIPS COMPENSATED VIA 1/PIPA SUBROUTINE.
035786,000088:                                                                                                  #                DVTOTAL INCREMENTED BY ABSOLUTE VALUE OF DELV.
035787,000089:                                                                                                  #                THRUST MONITOR (DVMON) PERFORMED UNLESS IDLE FLAG IS ON.
035788,000090:                                                                                                  #                CONTROL TRANSFERRED TO AVERAGE G.
035789,000091: 
035790,000092:                                                                                                  #        DVMON
035791,000093: 
035792,000094:                                                                                                  #                THRESHOLD VALUE (PLACED IN DVTHRUSH BY USER) CHECKED AGAINST ABSOLUTE VALUE OF DELV TO CHECK
035793,000095:                                                                                                  #                THRUST LEVEL.
035794,000096: 
035795,000097:                                                                                                  #                        IF THRUST       1) ULLAGE OFF ROUTINE PERFORMED.
035796,000098:                                                                                                  #                                        2) STEERING FLAG TURNED ON AT FIRST DETECTION OF THRUST.
035797,000099:                                                                                                  #                                        3) CONTROL TRANSFERRED TO AVERAGE G.
035798,000100:                                                                                                  #                        IF NO THRUST    1) ON FIRST PASS THROUGH MONITOR, CONTROL TRANSFERRED TO AVERAGE G.
035799,000101:                                                                                                  #                                        2) ON SUBSEQUENT PASSES, CONTROL TRANSFERRED TO ENGINE FAIL ROUTINE IF THRUST
035800,000102:                                                                                                  #                                           HAS FAILED FOR 3 CONSECUTIVE PASSES.
035801,000103: 
035802,000104:                                                                                                  #        ENGINE FAIL
035803,000105: 
035804,000106:                                                                                                  #                ENGFAIL1 TASK CALLED IN 2.5 SECONDS.  THIS WILL RETURN CONTROL TO TIG-5 SO THAT THE IGNITION
035805,000107:                                                                                                  #                        SEQUENCE MAY BE REPEATED.
035806,000108:                                                                                                  #                ENGINOF3 PERFORMED.
035807,000109:                                                                                                  #                DAP SET UP FOR RCS.
035808,000110:                                                                                                  #        
035809,000111:                                                                                                  #        AVERAGE G

Page 821

035811,000113:                                                                                                  #                RN1, VN1, GDT1/2 CALCULATED VIA CALCRVG ROUTINE BY UPDATING RN, VN WITH DELV AND AN AVERAGED VALUE
035812,000114:                                                                                                  #                        OF GDT/2.
035813,000115:                                                                                                  #                RN1, VN1, GDT1/2, PIPTIME1 COPIED INTO RN, VN, GDT/2, PIPTIME FOR RESTART PROTECTION.
035814,000116:                                                                                                  #                CONTROL TRANSFERRED TO ADDRESS SPECIFIED BY USER (OR BY READACCS FOR LAST PASS) IN AVGEXIT.
035815,000117:                                                                                                  #                LAST PASS (AVGEND)      1) FREE FALL GYRO COMPENSATION SET UP.
035816,000118:                                                                                                  #                                        2) DRIFT FLAG TURNED ON.
035817,000119:                                                                                                  #                                        3) STATE VECTOR TRANSFERRED VIA AVETOMID ROUTINE.
035818,000120:                                                                                                  #                                        4) ONMONITOR FLAG RESET.
035819,000121:                                                                                                  #                                        5) V37 FLAG RESET.
035820,000122:                                                                                                  #                                        6) TEST CONNECTOR OUTBIT RESET.
035821,000123:                                                                                                  #                                        7) CONTROL TRANSFERRED TO CANV37 TO CONTINUE MM CHANGE ROUTINE (R00).
035822,000124: 
035823,000125:                                                                                                  #  CALLING SEQUENCE
035824,000126: 
035825,000127:                                                                                                  #        PREREAD ENTERED DIRECTLY FROM TIG-30 VIA POSTJUMP.
035826,000128:                                                                                                  #        READACCS CALLED AS WAITLIST TASK.                                          .
035827,000129: 
035828,000130:                                                                                                  #  SUBROUTINES CALLED
035829,000131: 
035830,000132:                                                                                                  #        UTILITY ROUTINES - PHASCHNG FLAGUP FLAGDOWN NOVAC FINDVAC WAITLIST ALARM NEWPHASE 2PHSCHNG
035831,000133: 
035832,000134:                                                                                                  #        OTHER - PIPASR 1/PIPA CALCGRAV CALCRVG AVETOMID
035833,000135: 
035834,000136:                                                                                                  #  NORMAL EXIT MODES
035835,000137: 
035836,000138:                                                                                                  #        ENDOFJOB        TASKOVER        CANV37
035837,000139: 
035838,000140:                                                                                                  #        AVGEXIT -       THIS IS A DOUBLE PRECISION ERASABLE LOCATION BY WHICH CONTROL IS TRANSFERRED AT THE END
035839,000141:                                                                                                  #                                OF EACH CYCLE OF AVERAGE G.
035840,000142:                                                                                                  #                        THE 2CADR OF A ROUTINE TO BE PERFORMED AT THAT TIME (E.G., STEERING EQUATIONS TO BE PERFORMED
035841,000143:                                                                                                  #                                AT 2 SECOND INTERVALS) MAY BE SET BY THE USER INTO AVGEXIT.
035842,000144:                                                                                                  #                        ALL SUCH ROUTINES SHOULD RETURN TO SERVEXIT, WHICH IS THE NORMAL EXIT FROM AVERAGE G.
035843,000145: 
035844,000146:                                                                                                  #        SERVEXIT -      DOES A PHASE CHANGE FOR RESTART PROTECTION AND GOES TO ENDOFJOB.
035845,000147:                                                                                                  #                        THE 2CADR OF SERVEXIT IS SET INTO AVGEXIT BY THE USER IF NO OTHER ROUTINE (SEE ABOVE).
035846,000148: 
035847,000149:                                                                                                  #        AVGEND -        LAST PASS OF AVERAGE G EXITS HERE, BYPASSING SPECIAL ROUTINE (SEE ABOVE UNDER READACCS).
035848,000150:                                                                                                  #                        FINAL EXIT IS TO CANV37.                                F AVERAGE G).
035849,000151: 
035850,000152:                                                                                                  #  OUTPUT
035851,000153: 
035852,000154:                                                                                                  #        DVTOTAL(2)  PIPTIME(2)  XPIPBUF(2)  YPIPBUF(2)  ZPIPBUF(2)
035853,000155:                                                                                                  #        RN(6)           REFERENCE COORD.        SCALED AT 2(+29) M/CS
035854,000156:                                                                                                  #        VN(6)           REFERENCE COORD.        SCALED AT 2(+7) M/CS
035855,000157:                                                                                                  #        GDT/2(6)        REFERENCE COORD.        SCALED AT 2(+7) M/CS
035856,000158:                                                                                                  #        DELV(6)         STABLE MEMB. COORD.     SCALED AT 2(+14)*5.85*10(-4) M/CS (KPIP1 USED TO GET DV/2 AT 2(+7))

Page 822

035858,000160:                                                                                                  #        DELVREF(6)      REFERENCE COORD.        SCALED AT 2(+7) M/CS
035859,000161: 
035860,000162:                                                                                                  #  INITIALIZATION
035861,000163: 
035862,000164:                                                                                                  #        ONMONITOR FLAG SET BY ENTRY TO SHOW PIPBUF VALUES REQUIRED.
035863,000165:                                                                                                  #        IDLE FLAG ON IF DVMON TO BE BYPASSED.
035864,000166:                                                                                                  #        DVTHRUSH SET TO APPROPRIATE VALUE FOR DVMON.
035865,000167:                                                                                                  #        AVGEXIT SET TO 2CADR OF ROUTINE, IF ANY, TO BE PERFORMED AFTER EACH CYCLE OF AVERAGE G.  IF NO ROUTINE
035866,000168:                                                                                                  #                TO BE DONE, AVGEXIT SET TO SERVEXIT.
035867,000169:                                                                                                  #        VALUES NEEDED
035868,000170:                                                                                                  #                REFSMMAT
035869,000171:                                                                                                  #                UNITW -  FULL UNIT VECTOR, IN REFERENCE COORD., OF EARTH S ROTATIONAL VECTOR
035870,000172:                                                                                                  #                RN1, VN1, PIPTIME1 -  IN REFERENCE COORD., CONSISTENT WITH TIME OF EXECUTION OF PREREAD
035871,000173: 
035872,000174:                                                                                                  #  DEBRIS
035873,000175: 
035874,000176:                                                                                                  #        CENTRALS        A, L, Q
035875,000177:                                                                                                  #        OTHER           INTERNAL - DVCNTR(1)  PIPAGE(1)  PIPCTR(1)  AVGEXIT(2)
035876,000178:                                                                                                  #                        EXTERNAL - ITEMP1(1)  ITEMP2(1)  RUPTREG1(1)  TEMX(1)  TEMY(1)  TEMZ(1)
035877,000179:                                                                                                  #                        USEFUL DEBRIS
035878,000180:                                                                                                  #                                RN1(6)  VN1(6)  GDT1/2  PIPTIME1(2)
035879,000181:                                                                                                  #                                        THESE LOCATIONS USED AS BUFFER STORAGE FOR NEWLY CALCULATED VALUES OF RN, VN, GDT/2,
035880,000182:                                                                                                  #                                        AND PIPTIME DURING PERFORMANCE OF SERVICER ROUTINES.
035881,000183:                                                                                                  #                                UNITR - HALF UNIT VECTOR OF RN, REFERENCE COORD.
035882,000184:                                                                                                  #                                RMAG SCALED AT 2(+58) IN 36D.
035883,000185:                                                                                                  #                                RMAGSQ SCALED AT 2(+58) IN 34D.
035884,000186:                                                                                                  #                                (RE/RMAG)SQ IN 32D.
035885,000187: 
035886,000188: 27,2671                                           BANK     27                                    
035887,000189: 37,2000                                           SETLOC   SERVICES                              
035888,000190: 37,2000                                           BANK                                           
035889,000191: 
035890,000192: 37,2701  E7,1431                                  EBANK=   DVCNTR                                
035891,000193:                                                                                                  #  *************************************   PREREAD   **************************************************************
035892,000194: 
035893,000195: 37,2701                                           COUNT    37/SERV                               
035894,000196: 
035895,000197: 37,2701           35073        PREREAD            CAF      PRIO21                                #  CALLER MUST PROTECT PREREAD
035896,000198: 37,2702           05134                           TC       NOVAC                                 
035897,000199: 37,2703  E3,1460                                  EBANK=   NBDX                                  
035898,000200: 37,2703           03636 14063                     2CADR    LASTBIAS                              #  DO LAST GYRO COMPENSATION IN FREE FALL
035899,000201: 
035900,000202:                                                                                                  #  CALL-TO AND LASTBIAS ITSELF ARE NOT
035901,000203:                                                                                                  #        PROTECTED. REREADAC SETS 1/PIPADT
035902,000204:                                                                                                  #        TO 2.0 SECS IN CASE LASTBIAS LOST.
035903,000205:                                                                                                  #        (REDUNDANT IF LASTBIAS IS AOK)

Page 823

035905,000207: 37,2705           02722        REDO5.31           TC       PREREAD1                              
035906,000208: 
035907,000209: 37,2706           37667                           CAF      PRIO32                                
035908,000210: 37,2707           05147                           TC       FINDVAC                               #  SET UP NORMLIZE JOB REQUIRED PRIOR TO
035909,000211: 37,2710  E7,1431                                  EBANK=   DVCNTR                                #  FIRST AVERAGE G PASS
035910,000212: 37,2710           03236 76067                     2CADR    NORMLIZE                              
035911,000213: 
035912,000214: 37,2712           35042                           CAF      2SECS                                 
035913,000215: 37,2713           05245                           TC       WAITLIST                              
035914,000216: 37,2714  E6,1661                                  EBANK=   AOG                                   
035915,000217: 37,2714           02744 76066                     2CADR    READACCS                              
035916,000218: 
035917,000219: 37,2716           45016                           CS       TWO                                   
035918,000220: 37,2717           04114                           TC       NEWPHASE                              
035919,000221: 37,2720           00005                           OCT      5                                     
035920,000222: 
035921,000223: 37,2721           15324                           TCF      TASKOVER                              
035922,000224: 
035923,000225: 37,2722           00006        PREREAD1           EXTEND                                         
035924,000226: 37,2723           22070                           QXCH     RUPTREG1                              
035925,000227: 
035926,000228: 37,2724           03254                           TC       PIPASR                                #  CLEAR + READ PIPS LAST TIME IN FREE FALL
035927,000229: 
035928,000230: 37,2725           35017                           CAF      ONE                                   #  SET UP PIPAGE FOR REREADAC IN CASE A
035929,000231: 37,2726           55230                           TS       PIPAGE                                #        RESTART OCCURS BEFORE READACCS
035930,000232: 
035931,000233: 37,2727           40075                           CS       FLAGWRD1                              #  SET AVEG FLAG
035932,000234: 37,2730           75017                           MASK     BIT1                                  
035933,000235: 37,2731           26075                           ADS      FLAGWRD1                              
035934,000236: 
035935,000237: 37,2732           34777                           CA       POSMAX                                
035936,000238: 37,2733           70076                           MASK     FLAGWRD2                              
035937,000239: 37,2734           54076                           TS       FLAGWRD2                              #  KNOCK DOWN DRIFT FLAG
035938,000240: 
035939,000241: 37,2735           40103                           CS       FLAGWRD7                              #  SET V37 FLAG
035940,000242: 37,2736           75012                           MASK     BIT6                                  
035941,000243: 37,2737           26103                           ADS      FLAGWRD7                              
035942,000244: 
035943,000245: 37,2740           35021                           CAF      ZERO                                  
035944,000246: 37,2741           55425                           TS       DVTOTAL                               #  CLEAR DVTOTAL
035945,000247: 37,2742           55426                           TS       DVTOTAL    +1                         
035946,000248: 
035947,000249: 37,2743           00070                           TC       RUPTREG1                              
035948,000250: 

Page 824

035950,000252:                                                                                                  #  *************************************   READACCS   *************************************************************
035951,000253: 37,2744  E6,1661                                  EBANK=   AOG                                   
035952,000254: 37,2744           03254        READACCS           TC       PIPASR                                
035953,000255: 
035954,000256: 37,2745           35022        PIPSDONE           CAF      FIVE                                  
035955,000257: 37,2746           54001                           TS       L                                     
035956,000258: 37,2747           40000                           COM                                            
035957,000259: 37,2750           52763                           DXCH     -PHASE5                               
035958,000260: 
035959,000261: 37,2751           35017        REDO5.5            CAF      ONE                                   #  SHOW PIPS HAVE BEEN READ
035960,000262: 37,2752           55230                           TS       PIPAGE                                
035961,000263: 
035962,000264: 37,2753           35016                           CA       TWO                                   #  SET PIPCTR FOR ONMINTOR
035963,000265: 37,2754           55227                           TS       PIPCTR                                #  AFTER ABOVE PHASCHNG
035964,000266: 
035965,000267: 37,2755           40102                           CS       CM/FLAGS                              
035966,000268: 37,2756           75016                           MASK     BIT2                                  #  CM/DSTBY
035967,000269: 37,2757           10000                           CCS      A                                     
035968,000270: 37,2760           03033                           TC       CHEKAVEG                              
035969,000271: 
035970,000272: 37,2761           41246                           CS       PIPTIME1   +1                         
035971,000273: 37,2762           55065                           TS       TBASE6                                #  FOR RESTARTS
035972,000274: 37,2763           00006                           EXTEND                                         #  CONTINUE FOR ENTRY DAP
035973,000275: 37,2764           31662                           DCA      AOG                                   
035974,000276: 37,2765           53670                           DXCH     AOG/PIP                               
035975,000277: 37,2766           31663                           CA       AMG                                   
035976,000278: 37,2767           57671                           XCH      AMG/PIP                               
035977,000279: 37,2770           00006                           EXTEND                                         
035978,000280: 37,2771           31665                           DCA      ROLL/180                              
035979,000281: 37,2772           53673                           DXCH     ROLL/PIP                              
035980,000282: 37,2773           31666                           CA       BETA/180                              
035981,000283: 37,2774           57674                           XCH      BETA/PIP                              
035982,000284: 37,2775           30102                           CA       CM/FLAGS                              
035983,000285: 37,2776           75004                           MASK     BIT12                                 #  CM/DAPARM 93D BIT12
035984,000286: 37,2777           00006                           EXTEND                                         #  DURING ENTRY, WHEN RCS DAP IS INACTIVE,
035985,000287: 37,3000           13016                           BZF      NOSAVPIP                              #  SAVE PIPAS EACH 0.5 SEC FOR TM.
035986,000288: 
035987,000289: 37,3001           33066                           CA       0.5SEC                                
035988,000290: 37,3002           05245                           TC       WAITLIST                              
035989,000291: 37,3003  E6,1533                                  EBANK=   XPIPBUF                               
035990,000292: 37,3003           03067 76066                     2CADR    QUIKREAD                              
035991,000293: 
035992,000294:                                                                                                  #  NO NEED TO RESTART PROTECT THIS.
035993,000295: 37,3005           31162                           CA       DELVX                                 #  SAVE PIPAS AS READ (BUT NOT COMPENSATED)
035994,000296: 37,3006           57533                           XCH      XPIPBUF                               
035995,000297: 37,3007           55536                           TS       XOLDBUF                               
035996,000298: 
035997,000299: 37,3010           31164                           CA       DELVY                                 
035998,000300: 37,3011           57534                           XCH      YPIPBUF                               
035999,000301: 37,3012           55537                           TS       YOLDBUF                               

Page 825

036001,000303: 37,3013           31166                           CA       DELVZ                                 
036002,000304: 37,3014           57535                           XCH      ZPIPBUF                               
036003,000305: 37,3015           55540                           TS       ZOLDBUF                               
036004,000306: 
036005,000307: 37,3016           35022        NOSAVPIP           CA       FIVE                                  
036006,000308: 37,3017           55725                           TS       CM/GYMDT                              
036007,000309: 
036008,000310: 37,3020           33233                           CA       JTAGTIME                              #  ACTIVATE CM/RCS AFTER PIPUP TO GO
036009,000311:                                                                                                  #  IN JTAGTIME +5 CS.
036010,000312: 37,3021           05245                           TC       WAITLIST                              
036011,000313: 37,3022  E6,1661                                  EBANK=   AOG                                   
036012,000314: 37,3022           03207 32066                     2CADR    SETJTAG                               
036013,000315: 
036014,000316: 37,3024           46214                           CS       THREE                                 #  1.3SPOT FOR SETJTAG
036015,000317: 37,3025           04114                           TC       NEWPHASE                              
036016,000318: 37,3026           00001                           OCT      1                                     
036017,000319: 
036018,000320: 37,3027           34362                           CAF      OCT37                                 
036019,000321: 37,3030           54001                           TS       L                                     
036020,000322: 37,3031           40000                           COM                                            
036021,000323: 37,3032           52763                           DXCH     -PHASE5                               
036022,000324: 
036023,000325: 37,3033           40075        CHEKAVEG           CS       FLAGWRD1                              
036024,000326: 37,3034           75017                           MASK     BIT1                                  
036025,000327: 37,3035           10000                           CCS      A                                     #  IF AVEG FLAG DOWN SET FINAL EXIT AVEG
036026,000328: 37,3036           03056                           TC       AVEGOUT                               
036027,000329: 
036028,000330: 37,3037           35042                           CAF      2SECS                                 
036029,000331: 37,3040           05245                           TC       WAITLIST                              
036030,000332: 37,3041  E6,1661                                  EBANK=   AOG                                   
036031,000333: 37,3041           02744 76066                     2CADR    READACCS                              
036032,000334: 
036033,000335: 37,3043           35002        MAKESERV           CAF      PRIO20                                #  ESTABLISH SERVICER ROUTINE
036034,000336: 37,3044           05147                           TC       FINDVAC                               
036035,000337: 37,3045  E7,1431                                  EBANK=   DVCNTR                                
036036,000338: 37,3045           03104 76067                     2CADR    SERVICER                              
036037,000339: 
036038,000340: 37,3047           45015                           CS       FOUR                                  #  RESTART SERVICER AND READACCS
036039,000341: 37,3050           04114                           TC       NEWPHASE                              
036040,000342: 37,3051           00005                           OCT      5                                     
036041,000343: 
036042,000344: 37,3052           35007                           CAF      BIT9                                  
036043,000345: 37,3053           00006                           EXTEND                                         
036044,000346: 37,3054           05011                           WOR      DSALMOUT                              #  TURN TEST CONNECTOR OUTBIT ON
036045,000347: 
036046,000348: 37,3055           15324                           TCF      TASKOVER                              #  END PREVIOUS READACCS WAITLIST TASK
036047,000349: 

Page 826

036049,000351: 37,3056           00006        AVEGOUT            EXTEND                                         
036050,000352: 37,3057           33063                           DCA      AVOUTCAD                              
036051,000353: 37,3060           53223                           DXCH     AVGEXIT                               
036052,000354: 37,3061           13043                           TCF      MAKESERV                              
036053,000355: 
036054,000356: 37,3062  E7,1431                                  EBANK=   DVCNTR                                
036055,000357: 37,3062           03165 76067  AVOUTCAD           2CADR    AVGEND                                
036056,000358: 

Page 827

036058,000360:                                                                                                  #  ROUTINE NAME: ONMNITOR
036059,000361:                                                                                                  #  MOD 04 BY BAIRNSFATHER 30 APR 1968    REDO ONMNITOR TO SAVE PIPS EACH 0.5 SEC FOR TM,ENTRY.
036060,000362:                                                                                                  #  MOD 03 BY FISHER DECEMBER 1967
036061,000363:                                                                                                  #  MOD 02 BY RYE SEPT 1967
036062,000364:                                                                                                  #  MOD 01 BY KOSMALA 23 MAR 1967
036063,000365:                                                                                                  #  MOD 00 BY KOSMALA 27 FEB 1967
036064,000366: 
036065,000367:                                                                                                  #  FUNCTIONAL DESCRIPTION
036066,000368: 
036067,000369:                                                                                                  #        THE PURPOSE OF ONMONITOR IS TO PROVIDE 1/2 SEC. READING OF PIPAS FOR DOWNLIST DURING ENTRY.
036068,000370:                                                                                                  #        X,Y,ZPIPBUF CONTAIN PRESENT VALUES X,Y,ZOLDBUF CONTAIN VALUES FROM PREVIOUS READING.
036069,000371: 
036070,000372:                                                                                                  #  CALLING SEQUENCE
036071,000373: 
036072,000374:                                                                                                  #        CALL AS WAITLIST TASK. TERMINATES ITSELF IN TASKOVER
036073,000375: 
036074,000376:                                                                                                  #  INITIALISATION
036075,000377: 
036076,000378:                                                                                                  #        PIPCTR = 2 (FOR DT = 0.5 SEC)
036077,000379:                                                                                                  #        X,Y,ZPIPBUF SET TO PREVIOUS PIPAX,Y,Z
036078,000380: 
036079,000381:                                                                                                  #  OUTPUT
036080,000382: 
036081,000383:                                                                                                  #        X,Y,ZPIPBUF, X,Y,ZOLDBUF
036082,000384: 
036083,000385:                                                                                                  #  DEBRIS
036084,000386: 
036085,000387:                                                                                                  #        X,Y,ZPIPBUF CONTAIN LAST PIPAX,Y,Z VALUES
036086,000388:                                                                                                  #                X,Y,ZOLDBUF CONTAIN LAST-BUT-ONE PIPAX,Y,Z VALUES
036087,000389:                                                                                                  #        RUPTREG1
036088,000390:                                                                                                  #        PIPCTR
036089,000391: 
036090,000392: 37,3064           55227        ONMNITOR           TS       PIPCTR                                
036091,000393: 
036092,000394: 37,3065           05267                           TC       FIXDELAY                              #  WAIT
036093,000395: 37,3066           00062        0.5SEC             DEC      50         B-14                       
036094,000396: 
036095,000397: 37,3067           35016        QUIKREAD           CAF      TWO                                   
036096,000398: 37,3070           54070                           TS       RUPTREG1                              
036097,000399: 37,3071           50000                           INDEX    A                                     
036098,000400: 37,3072           30037                           CA       PIPAX                                 #  SAVE ACTUAL PIPAS FOR TM.
036099,000401: 37,3073           50070                           INDEX    RUPTREG1                              
036100,000402: 37,3074           57533                           XCH      XPIPBUF                               #  UPDATE X,Y,ZPIPBUF
036101,000403: 37,3075           50070                           INDEX    RUPTREG1                              
036102,000404: 37,3076           55536                           TS       XOLDBUF                               #  AND X,Y,ZOLDBUF
036103,000405: 37,3077           10070        CHKCTR             CCS      RUPTREG1                              
036104,000406: 37,3100           13070                           TCF      QUIKREAD   +1                         #  LOOP AGAIN
036105,000407: 37,3101           11227                           CCS      PIPCTR                                
036106,000408: 37,3102           13064                           TCF      ONMNITOR                              
036107,000409: 37,3103           05324                           TC       TASKOVER                              
036108,000410: 

Page 828

036110,000412:                                                                                                  #  *************************************   SERVICER   *************************************************************
036111,000413: 
036112,000414: 37,3104  E7,1431                                  EBANK=   DVCNTR                                
036113,000415: 
036114,000416: 37,3104           35016        SERVICER           CAF      TWO                                   
036115,000417: 37,3105           00004                           INHINT                                         
036116,000418: 37,3106           54070        PIPCHECK           TS       RUPTREG1                              
036117,000419: 
036118,000420: 37,3107           60000                           DOUBLE                                         
036119,000421: 37,3110           50000                           INDEX    A                                     
036120,000422: 37,3111           11162                           CCS      DELVX                                 
036121,000423: 37,3112           03114                           TC       +2                                    
036122,000424: 37,3113           03122                           TC       PIPLOOP                               
036123,000425: 
036124,000426: 37,3114           63232                           AD       -MAXDELV                              #  DO PIPA-SATURATION TEST BEFORE
036125,000427: 37,3115           00006                           EXTEND                                         
036126,000428: 37,3116           63122                           BZMF     PIPLOOP                               #  COMPENSATION.
036127,000429: 
036128,000430: 37,3117           05650                           TC       ALARM                                 
036129,000431: 37,3120           00205                           OCT      00205                                 #  SATURATED-PIPA ALARM   ***CHANGE LATER
036130,000432: 37,3121           03143                           TC       AVERAGEG                              
036131,000433: 
036132,000434: 37,3122           10070        PIPLOOP            CCS      RUPTREG1                              
036133,000435: 37,3123           13106                           TCF      PIPCHECK                              
036134,000436: 
036135,000437: 37,3124           05412                           TC       PHASCHNG                              #  RESTART REREADAC + SERVICER
036136,000438: 37,3125           16035                           OCT      16035                                 
036137,000439: 37,3126           20000                           OCT      20000                                 
036138,000440: 37,3127  E7,1431                                  EBANK=   DVCNTR                                
036139,000441: 37,3127           03133 76067                     2CADR    DVTOTUP                               
036140,000442: 
036141,000443: 37,3131           04662                           TC       BANKCALL                              #  PIPA COMPENSATION CALL
036142,000444: 37,3132           15262                           CADR     1/PIPA                                
036143,000445: 
036144,000446: 37,3133           06006        DVTOTUP            TC       INTPRET                               
036145,000447: 37,3134           51575                           VLOAD    ABVAL                                 #  GET ABS VALUE OF DELV
036146,000448: 37,3135           01163                                    DELV                                  
036147,000449: 37,3136           77405                           DMP      EXIT                                  
036148,000450: 37,3137           37451                                    KPIP1                                 #  SCALE AT 2(+7)
036149,000451: 
036150,000452: 37,3140           00006                           EXTEND                                         
036151,000453: 37,3141           30155                           DCA      MPAC                                  
036152,000454: 37,3142           21426                           DAS      DVTOTAL                               #  ACCUMULATE DVTOTAL
036153,000455: 37,3143           05412        AVERAGEG           TC       PHASCHNG                              
036154,000456: 37,3144           10035                           OCT      10035                                 
036155,000457: 
036156,000458: 37,3145           06006                           TC       INTPRET                               
036157,000459: 37,3146           77624                           CALL                                           

Page 829

036159,000461: 37,3147           77420                                    CALCRVG                               
036160,000462: 37,3150           77776                           EXIT                                           
036161,000463: 
036162,000464: 37,3151           05412                           TC       PHASCHNG                              
036163,000465: 37,3152           10035                           OCT      10035                                 
036164,000466: 
036165,000467: 37,3153           34113                           CAF      OCT31                                 #  COPY RN1,VN1,GOT102,GOBL1/2,PIPTIME1
036166,000468: 37,3154           05606                           TC       GENTRAN                               #  INTO RN, VN, GDT/12, GOBL/2,PIPTIME
036167,000469: 37,3155           01231                           ADRES    RN1                                   
036168,000470: 37,3156           01170                           ADRES    RN                                    
036169,000471: 37,3157           00003                           RELINT                                         #  GENTRAN DOES AN INHINT
036170,000472: 37,3160           05412                           TC       PHASCHNG                              
036171,000473: 37,3161           10035                           OCT      10035                                 
036172,000474: 
036173,000475: 37,3162           00006                           EXTEND                                         
036174,000476: 37,3163           31223                           DCA      AVGEXIT                               
036175,000477: 37,3164           52006                           DXCH     Z                                     #  AVERAGEG EXIT
036176,000478: 
036177,000479: 37,3165           31205        AVGEND             CA       PIPTIME    +1                         #  FINAL AVERAGE G EXIT
036178,000480: 37,3166           55074                           TS       OLDBT1                                #  SET UP FREE FALL GYRO COMPENSATION
036179,000481: 
036180,000482: 37,3167           05546                           TC       UPFLAG                                #  SET DRIFTFLG
036181,000483: 37,3170           00036                           ADRES    DRIFTFLG                              #  BIT 15 FLAG 2
036182,000484: 37,3171           05372                           TC       2PHSCHNG                              
036183,000485: 37,3172           00005                           OCT      5                                     #  GROUP 5 OFF
036184,000486: 37,3173           05022                           OCT      05022                                 #  GROUP 2 ON FOR AVETOMID
036185,000487: 37,3174           20000                           OCT      20000                                 
036186,000488: 
036187,000489: 37,3175           06006                           TC       INTPRET                               
036188,000490: 37,3176           77624                           CALL                                           
036189,000491: 37,3177           73675                                    AVETOMID                              #  CONVERT STATE VECTOR TO REFERENCE SCALE.
036190,000492: 37,3200           77776                           EXIT                                           
036191,000493: 
036192,000494: 37,3201           35021                           CAF      ZERO                                  #  ZERO MARK COUNTERS.
036193,000495: 37,3202           55125                           TS       VHFCNT                                
036194,000496: 37,3203           55126                           TS       TRKMKCNT                              
036195,000497: 
036196,000498: 37,3204           04662                           TC       BANKCALL                              
036197,000499: 37,3205           17173                           CADR     PIPFREE                               
036198,000500: 
036199,000501: 37,3206           45007                           CS       BIT9                                  
036200,000502: 37,3207           55734                           TS       MRKBUF2                               #  INVALIDATE MARK BUFFER
036201,000503: 37,3210           00006                           EXTEND                                         
036202,000504: 37,3211           03011                           WAND     DSALMOUT                              
036203,000505: 
036204,000506: 37,3212           05560                           TC       DOWNFLAG                              
036205,000507: 37,3213           00147                           ADRES    CM/DSTBY                              
036206,000508: 
036207,000509: 37,3214           05560                           TC       DOWNFLAG                              
036208,000510: 37,3215           00162                           ADRES    V37FLAG                               
036209,000511: 

Page 830

036211,000513: 37,3216           35011                           CAF      BIT7                                  #  RESTORE GROUP 1 + 2 IF P20 IS RUNNING.
036212,000514: 37,3217           70074                           MASK     FLAGWRD0                              
036213,000515: 37,3220           00006                           EXTEND                                         
036214,000516: 37,3221           13225                           BZF      +4                                    
036215,000517: 
036216,000518: 37,3222           05372                           TC       2PHSCHNG                              
036217,000519: 37,3223           00111                           OCT      111                                   #  1.11SPOT
036218,000520: 37,3224           00132                           OCT      132                                   #  2.13SPOT
036219,000521: 
036220,000522: 37,3225           04701                           TC       POSTJUMP                              
036221,000523: 37,3226           10124                           CADR     CANV37                                
036222,000524: 
036223,000525: 37,3227           05412        SERVEXIT           TC       PHASCHNG                              
036224,000526: 37,3230           00035                           OCT      00035                                 #  A, 5.3 = REREADAC     (ONLY)
036225,000527: 
036226,000528: 37,3231           15217                           TCF      ENDOFJOB                              
036227,000529: 
036228,000530: 37,3232     5024               DVTHRUSH           EQUALS   ELEVEN                                #  15 PERCENT OF 2SEC PIPA ACCUMULATION,
036229,000531:                                                                                                  #        FOR 503-FULL CSM/LEM....DELV SC.AT
036230,000532:                                                                                                  #        5.85 CM/SEC.
036231,000533: 
036232,000534: 37,3232           63401        -MAXDELV           DEC      -6398      B-14                       #  3200 PPS FOR 2 SEC CCS TAKES 1
036233,000535: 
036234,000536: 37,3233           00170        JTAGTIME           DEC      120        B-14                       #  = 1 SEC + T CDU, T CDU = .1 SEC
036235,000537: 
036236,000538: 37,3234           00372        2.5SEC             DEC      250        B-14                       
036237,000539: 37,3235           00044        MDOTFAIL           DEC      144.0      B-16                       #  5 SEC MASS LOSS AT 28.8 KG/SEC
036238,000540:                                                                                                  #  SHOULD BE 2-4 SECS FOR NO START
036239,000541:                                                                                                  #            6-8 SECS FOR FAILURE
036240,000542: 

Page 831

036242,000544:                                                                                                  #  NORMLIZE PERFORMS THE INITIALIZATION REQUIRED PRIOR TO THE FIRST ENTRY TO AVERAGEG, AND SCALES RN SO THAT IT
036243,000545:                                                                                                  #  HAS 1 LEADING BINARY ZERO.  IN MOST MISSIONS, RN WILL BE SCALED AT 2(+29), BUT IN THE 206 MISSION, RN WILL BE
036244,000546:                                                                                                  #  SCALED AT 2(+24) M.
036245,000547: 
036246,000548: 37,3236           35025        NORMLIZE           CAF      THIRTEEN                              #  SET UP TO COPY 14 REGS- RN1,VN1,PIPTIME1
036247,000549: 37,3237           05606                           TC       GENTRAN                               #  INTO RN,VN,PIPTIME
036248,000550: 37,3240           01231                           ADRES    RN1                                   #  FROM HERE
036249,000551: 37,3241           01170                           ADRES    RN                                    #  TO HERE
036250,000552: 
036251,000553: 37,3242           00003                           RELINT                                         
036252,000554: 37,3243           06006                           TC       INTPRET                               
036253,000555: 37,3244           45175                           VLOAD    CALL                                  #  LOAD RN FOR CALCGRAV
036254,000556: 37,3245           01171                                    RN                                    
036255,000557: 37,3246           77353                                    CALCGRAV                              #  INITIALISE UNITR RMAG GDT1
036256,000558: 
036257,000559: 37,3247           25207                           STOVL    GDT/2                                 
036258,000560: 37,3250           01256                                    GOBL1/2                               
036259,000561: 37,3251           01215                           STORE    GOBL/2                                
036260,000562: 37,3252           77776                           EXIT                                           
036261,000563: 37,3253           15217                           TCF      ENDOFJOB                              
036262,000564: 

Page 832

036264,000566:                                                                                                  #  *****  PIPA READER *****
036265,000567:                                                                                                  #  MOD NO. 00 BY D. LICKLY DEC. 9 1966
036266,000568: 
036267,000569:                                                                                                  #  FUNCTIONAL DESCRIPTION
036268,000570: 
036269,000571:                                                                                                  #  SUBROUTINE TO READ PIPA COUNTERS, TRYING TO BE VERY CAREFUL SO THAT IT WILL BE RESTARTABLE.
036270,000572:                                                                                                  #  PIPA READINGS ARE STORED IN THE VECTOR DELV.  THE HIGH ORDER PART OF EACH COMPONENT CONTAINS THE PIPA READING,
036271,000573:                                                                                                  #  RESTARTS BEGIN AT REREADAC.
036272,000574: 
036273,000575:                                                                                                  #  AT THE END OF THE PIPA READER THE CDUS ARE READ AND STORED AS A
036274,000576:                                                                                                  #  VECTOR IN CDUTEMP.  THE HIGH ORDER PART OF EACH COMPONENT CONTAINS
036275,000577:                                                                                                  #  THE CDU READING IN 2S COMP IN THE ORDER CDUX,Y,Z.  THE THRUST
036276,000578:                                                                                                  #  VECTOR ESTIMATOR IN FINDCDUD REQUIRES THE CDUS BE READ AT PIPTIME.
036277,000579: 
036278,000580:                                                                                                  #  CALLING SEQUENCE AND EXIT
036279,000581: 
036280,000582:                                                                                                  #        CALL VIA TC, ISWCALL, ETC.
036281,000583: 
036282,000584:                                                                                                  #        EXIT IS VIA Q.
036283,000585: 
036284,000586:                                                                                                  #  INPUT
036285,000587: 
036286,000588:                                                                                                  #        INPUT IS THROUGH THE COUNTERS PIPAX, PIPAY, PIPAZ, AND TIME2.
036287,000589: 
036288,000590:                                                                                                  #  OUTPUT
036289,000591: 
036290,000592:                                                                                                  #        HIGH ORDER COMPONENTS OF THE VECTOR DELV CONTAIN THE PIPA READINGS.
036291,000593: 
036292,000594:                                                                                                  #        PIPTIME CONTAINS TIME OF PIPA READING.
036293,000595: 
036294,000596:                                                                                                  #  DEBRIS (ERASABLE LOCATIONS DESTROYED BY PROGRAM)
036295,000597: 
036296,000598:                                                                                                  #        LOW ORDER DELV'S ARE ZEROED FOR TM INDICATION.
036297,000599:                                                                                                  #        TEMX    TEMY    TEMZ    PIPAGE
036298,000600: 
036299,000601: 37,3254           00006        PIPASR             EXTEND                                         
036300,000602: 37,3255           30025                           DCA      TIME2                                 
036301,000603: 37,3256           53246                           DXCH     PIPTIME1                              #  CURRENT TIME  POSITIVE VALUE
036302,000604: 37,3257           45021                           CS       ZERO                                  #  INITIALIZE THESE AT NEG ZERO.
036303,000605: 37,3260           55224                           TS       TEMX                                  
036304,000606: 37,3261           55225                           TS       TEMY                                  
036305,000607: 37,3262           55226                           TS       TEMZ                                  

Page 833

036307,000609: 37,3263           35021                           CA       ZERO                                  
036308,000610: 37,3264           55166                           TS       DELVZ                                 #  OTHER DELVS OK INCLUDING LOW ORDER
036309,000611: 37,3265           55164                           TS       DELVY                                 
036310,000612: 
036311,000613: 37,3266           55163                           TS       DELVX      +1                         #  LOW ORDER DELV'S ARE ZEROED FOR TM:  THUS
036312,000614: 37,3267           55165                           TS       DELVY      +1                         #  IF DNLNK'D LOW ORDER DELVS ARE NZ, THEY
036313,000615: 37,3270           55167                           TS       DELVZ      +1                         #  CONTAIN PROPER COMPENSATION.  IF=0, THEN
036314,000616:                                                                                                  #  THE TM VALUES ARE BEFORE COMPENSATION.
036315,000617: 
036316,000618: 37,3271           55230                           TS       PIPAGE                                #  SHOW PIPA READING IN PROGRESS
036317,000619: 
036318,000620: 37,3272           00006        REPIP1             EXTEND                                         
036319,000621: 37,3273           40040                           DCS      PIPAX                                 #  X AND Y PIPS READ
036320,000622: 37,3274           53225                           DXCH     TEMX                                  
036321,000623: 37,3275           52040                           DXCH     PIPAX                                 #  PIPAS SET TO NEG ZERO AS READ.
036322,000624: 37,3276           55162                           TS       DELVX                                 
036323,000625: 37,3277           23164                           LXCH     DELVY                                 
036324,000626: 
036325,000627: 37,3300           40041        REPIP3             CS       PIPAZ                                 #  REPEAT PROCESS FOR Z PIP
036326,000628: 37,3301           57226                           XCH      TEMZ                                  
036327,000629: 37,3302           56041                           XCH      PIPAZ                                 
036328,000630: 37,3303           55166        DODELVZ            TS       DELVZ                                 
036329,000631: 
036330,000632: 37,3304           00002                           TC       Q                                     
036331,000633: 
036332,000634: 37,3305  E6,1661                                  EBANK=   AOG                                   
036333,000635: 
036334,000636: 37,3305           10763        REREADAC           CCS      PHASE5                                #  LAST PASS CHECK
036335,000637: 37,3306           13310                           TCF      +2                                    
036336,000638: 37,3307           15324                           TCF      TASKOVER                              
036337,000639: 
036338,000640: 37,3310           37665                           CAF      PRIO31                                #  RESTART MAY HAVE WIPED OUT LASTBIAS, AN
036339,000641: 37,3311           55074                           TS       1/PIPADT                              #        UNPROTECTED NOVAC FROM PREREAD,
036340,000642:                                                                                                  #        WHICH SET(S) UP 1/PIPADT (THUSLY)
036341,000643:                                                                                                  #        FOR NON-COASTING COMPENSATION....BE
036342,000644:                                                                                                  #        SURE 1/PIPADT IS AOK.  (PRIO31 IS
036343,000645:                                                                                                  #        2.0SEC SC.AT B+8CS)
036344,000646: 
036345,000647: 37,3312           11230                           CCS      PIPAGE                                
036346,000648: 37,3313           12744                           TCF      READACCS                              #  PIP READING NOT STARTED.  GO TO BEGINNING
036347,000649: 
036348,000650: 37,3314           33352                           CAF      DONEADR                               #  SET UP RETURN FROM PIPASR
036349,000651: 37,3315           54002                           TS       Q                                     
036350,000652: 
036351,000653: 37,3316           11166                           CCS      DELVZ                                 
036352,000654: 37,3317           00002                           TC       Q                                     #  Z DONE, GO DO CDUS
036353,000655: 37,3320           13323                           TCF      +3                                    #  Z NOT DONE, CHECK Y.
036354,000656: 37,3321           00002                           TC       Q                                     
036355,000657: 37,3322           00002                           TC       Q                                     

Page 834

036357,000659: 37,3323           22007                           ZL                                             
036358,000660: 37,3324           11164                           CCS      DELVY                                 
036359,000661: 37,3325           13330                           TCF      +3                                    
036360,000662: 37,3326           13337                           TCF      CHKTEMX                               #  Y NOT DONE, CHECK X.
036361,000663: 37,3327           13330                           TCF      +1                                    
036362,000664: 37,3330           22041                           LXCH     PIPAZ                                 #  Y DONE, ZERO Z PIP.
036363,000665: 
036364,000666: 37,3331           11226                           CCS      TEMZ                                  
036365,000667: 37,3332           41226                           CS       TEMZ                                  #  TEMZ NOT = -0, CONTAINS -PIPAZ VALUE.
036366,000668: 37,3333           13303                           TCF      DODELVZ                               
036367,000669: 37,3334           13332                           TCF      -2                                    
036368,000670: 37,3335           23166                           LXCH     DELVZ                                 #  TEMZ = -0, L HAS ZPIP VALUE.
036369,000671: 37,3336           00002                           TC       Q                                     
036370,000672: 
036371,000673: 37,3337           11224        CHKTEMX            CCS      TEMX                                  #  HAS THIS CHANGED
036372,000674: 37,3340           41224                           CS       TEMX                                  #  YES
036373,000675: 37,3341           13344                           TCF      +3                                    #  YES
036374,000676: 37,3342           13340                           TCF      -2                                    #  YES
036375,000677: 37,3343           13272                           TCF      REPIP1                                #  NO
036376,000678: 37,3344           55162                           TS       DELVX                                 
036377,000679: 
036378,000680: 37,3345           41225                           CS       TEMY                                  
036379,000681: 37,3346           55164                           TS       DELVY                                 
036380,000682: 
036381,000683: 37,3347           45021                           CS       ZERO                                  #  ZERO X AND Y PIPS
036382,000684: 37,3350           52040                           DXCH     PIPAX                                 #  L STILL ZERO FROM ABOVE
036383,000685: 
036384,000686: 37,3351           13300                           TCF      REPIP3                                
036385,000687: 
036386,000688: 37,3352           02745        DONEADR            GENADR   PIPSDONE                              
036387,000689: 

Page 835

036389,000691:                                                                                                  #  *************************************************************************************************************
036390,000692: 
036391,000693:                                                                                                  #           ROUTINE CALCRVG INTEGRATES THE EQUATIONS OF MOTION BY AVERAGING THE THRUST AND GRAVITATIONAL
036392,000694:                                                                                                  #  ACCELERATIONS OVER A TIME INTERVAL OF 2 SECONDS.
036393,000695: 
036394,000696:                                                                                                  #           FOR THE EARTH-CENTERED GRAVITATIONAL FIELD, THE PERTURBATION DUE TO OBLATENESS IS COMPUTED TO THE FIRST
036395,000697:                                                                                                  #  HARMONIC COEFFICIENT J.
036396,000698: 
036397,000699:                                                                                                  #  ROUTINE CALCRVG REQUIRES...
036398,000700:                                                                                                  #        1) THRUST ACCELERATION INCREMENTS IN DELV SCALED SAME AS PIPAX,Y,Z IN STABLE MEMBER COORDS.
036399,000701:                                                                                                  #        2) VN SCALED 2(+7) M/CS IN REFERENCE COORDS.
036400,000702:                                                                                                  #        3) RN SCALED AT 2(+29) METERS IN REFERENCE COORDS.
036401,000703:                                                                                                  #        4) UNITW THE EARTH S UNIT ROTATIONAL VECTOR (SCALED AS A FULL UNIT VECTOR) IN REFERENCE COORDS.
036402,000704: 
036403,000705:                                                                                                  #  IT LEAVES RN1 UPDATED (SCALED AT 2(+29)M, VN1 (SCALED AT 2(+7)M/CS), AND GDT1/2 (SCALED AT 2(+7)M/CS). ALSO HALF
036404,000706:                                                                                                  #  UNIT VECTOR UNITR, RMAG IN 36D SCALED AT 2(+29)M, R MAG SQ. IN 34D SCALED AT 2(+58) M SQ.
036405,000707: 
036406,000708: 37,3353           41456        CALCGRAV           UNIT     PUSH                                  #  ENTER WITH RN IN MPAC
036407,000709: 37,3354           01760                           STORE    UNITR                                 
036408,000710: 37,3355           67340                           LXC,1    SLOAD                                 
036409,000711: 37,3356           03746                                    RTX2                                  
036410,000712: 37,3357           00047                                    X1                                    
036411,000713: 37,3360           77240                           BMN      VLOAD                                 
036412,000714: 37,3361           77407                                    ITISMOON                              
036413,000715: 37,3362           41441                           DOT      PUSH                                  
036414,000716: 37,3363           01714                                    UNITW                                 
036415,000717: 37,3364           44316                           DSQ      BDSU                                  
036416,000718: 37,3365           37461                                    DP1/20                                
036417,000719: 37,3366           56325                           PDDL     DDV                                   
036418,000720: 37,3367           37463                                    RESQ                                  
036419,000721: 37,3370           00043                                    34D                                   #  (RN)SQ
036420,000722: 37,3371           00041                           STORE    32D                                   #  TEMP FOR (RE/RN)SQ
036421,000723: 37,3372           41205                           DMP      DMP                                   
036422,000724: 37,3373           37465                                    20J                                   
036423,000725: 37,3374           65361                           VXSC     PDDL                                  
036424,000726: 37,3375           01760                                    UNITR                                 
036425,000727: 37,3376           41205                           DMP      DMP                                   
036426,000728: 37,3377           37467                                    2J                                    
036427,000729: 37,3400           00041                                    32D                                   
036428,000730: 37,3401           53361                           VXSC     VAD                                   
036429,000731: 37,3402           01714                                    UNITW                                 
036430,000732: 37,3403           77626                           STADR                                          
036431,000733: 37,3404           76521                           STORE    GOBL1/2                               
036432,000734: 37,3405           41455                           VAD      PUSH                                  
036433,000735: 37,3406           01760                                    UNITR                                 
036434,000736: 37,3407           60345        ITISMOON           DLOAD    NORM                                  
036435,000737: 37,3410           00043                                    34D                                   
036436,000738: 37,3411           00050                                    X2                                    
036437,000739: 37,3412           53663                           BDDV*    SLR*                                  

Page 836

036439,000741: 37,3413           37453                                    -MUDT(E),1                            
036440,000742: 37,3414           56623                                    0          -21D,2                     
036441,000743: 37,3415           45561                           VXSC     STADR                                 
036442,000744: 37,3416           76527                           STORE    GDT1/2                                #  SCALED AT 2(+7) M/CS
036443,000745: 37,3417           77616                           RVQ                                            
036444,000746: 
036445,000747: 37,3420           74375        CALCRVG            VLOAD    VXSC                                  
036446,000748: 37,3421           01163                                    DELV                                  
036447,000749: 37,3422           37451                                    KPIP1                                 
036448,000750: 37,3423           76505                           VXM      VSL1                                  
036449,000751: 37,3424           01736                                    REFSMMAT                              
036450,000752: 37,3425           03433                           STORE    DELVREF                               #  DELV IN REF COORDS AT 2(+7)
036451,000753: 37,3426           41562                           VSR1     PUSH                                  
036452,000754: 37,3427           41455                           VAD      PUSH                                  #  (DV-OLDGDT)/2 TO PD SCALED AT 2(+7)M/CS
036453,000755: 37,3430           01207                                    GDT/2                                 
036454,000756: 37,3431           74255                           VAD      VXSC                                  
036455,000757: 37,3432           01177                                    VN                                    
036456,000758: 37,3433           37457                                    2SEC(22)                              
036457,000759: 37,3434           44055                           VAD      STQ                                   
036458,000760: 37,3435           01171                                    RN                                    
036459,000761: 37,3436           00037                                    31D                                   
036460,000762: 37,3437           35232                           STCALL   RN1                                   #  TEMP STORAGE OF RN SCALED 2(+29)M
036461,000763: 37,3440           77353                                    CALCGRAV                              
036462,000764: 
036463,000765: 37,3441           53255                           VAD      VAD                                   
036464,000766: 37,3442           77655                           VAD                                            
036465,000767: 37,3443           01177                                    VN                                    
036466,000768: 37,3444           35240                           STCALL   VN1                                   #  TEMP STORAGE OF VN SCALED 2(+7) M/CS
036467,000769: 37,3445           00037                                    31D                                   
036468,000770: 
036469,000771: 37,3446           03215 27057  KPIP               2DEC     .1024                                 #  SCALES DELV TO 2(+4)
036470,000772: 
036471,000773: 37,3450           02312 32537  KPIP1              2DEC     0.074880                              #  207 DELV SCALING.  1 PULSE = 5.85 CM/SEC.
036472,000774: 
036473,000775: 37,3452           61377 55754  -MUDT(E)           2DEC*    -7.9720645 E+12       B-44*           
036474,000776: 
036475,000777: 37,3454           77644 65556  -MUDT(M)           2DEC*    -9.805556  E+10       B-44*           
036476,000778: 
036477,000779: 37,3456           00000 31000  2SEC(22)           2DEC     200        B-22                       
036478,000780: 
036479,000781: 37,3460           01463 06315  DP1/20             2DEC     0.05                                  
036480,000782: 
036481,000783: 37,3462           00001 05000  RESQ               2DEC*    40.6809913 E12        B-59*           
036482,000784: 
036483,000785: 37,3464           02047 36332  20J                2DEC*    3.24692010 E-2        B1*             
036484,000786: 
036485,000787: 37,3466           00152 14511  2J                 2DEC*    3.24692010 E-3        B1*             
036486,000788: 

End of include-file SERVICER207.agc.  Parent file is MAIN.agc