Source Code

These source-code files derive from a printout of Luminary 116 (the Apollo 12 Lunar Module guidance computer program), from the personal library of original AGC developer Don Eyles, digitally photographed at archive.org, financially sponsored by Ron Burkey, and transcribed to source code by a team of volunteers. This colorized, syntax-highlighted form was created by assembling that transcribed source code. Note that the full page images are available on the Virtual AGC project page at archive.org, while reduced-size images are presented at the VirtualAGC project website. Report or fix any transcription errors at the Virtual AGC project code repository.

Notations on the program listing read, in part:

	GAP:  ASSEMBLE REVISION 116 OF AGC PROGRAM LUMINARY BY NASA 2021112-071
	19:09 AUG. 11,1969
Note that the date is the date of the printout, not the date of the program revision.

052855,000002:                                                                                                  ## Copyright:   Public domain.
052856,000003:                                                                                                  ## Filename:    POWERED_FLIGHT_SUBROUTINES.agc
052857,000004:                                                                                                  ## Purpose:     A section of Luminary revision 116.
052858,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM) 
052859,000006:                                                                                                  ##              Apollo Guidance Computer (AGC) for Apollo 12.
052860,000007:                                                                                                  ##              This file is intended to be a faithful transcription, except
052861,000008:                                                                                                  ##              that the code format has been changed to conform to the
052862,000009:                                                                                                  ##              requirements of the yaYUL assembler rather than the
052863,000010:                                                                                                  ##              original YUL assembler.
052864,000011:                                                                                                  ## Reference:   pp. 1249-1257
052865,000012:                                                                                                  ## Assembler:   yaYUL
052866,000013:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
052867,000014:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
052868,000015:                                                                                                  ## Mod history: 2017-01-22 MAS  Created from Luminary 99.
052869,000016:                                                                                                  ##              2017-01-25 RRB  Updated for Luminary 116.
052870,000017:                                                                                                  ##              2017-03-14 RSB  Proofed comment text via 3-way diff vs
052871,000018:                                                                                                  ##                              Luminary 99 and 131.
052872,000019:                                                                                                  ##              2017-03-16 RSB  Comment-text fixes identified in 5-way
052873,000020:                                                                                                  ##                              side-by-side diff of Luminary 69/99/116/131/210.
052874,000021:                                                                                                  ##              2017-03-17 RSB  Comment-text fixes identified in diff'ing
052875,000022:                                                                                                  ##                              Luminary 99 vs Comanche 55.
052876,000023: 

Page 1259

052878,000025: 14,3775                                           BANK     14                                    #  SAME FBANK AS THE FINDCDUD SUB-PROGRAM
052879,000026: 23,2000                                           SETLOC   POWFLITE                              
052880,000027: 23,2000                                           BANK                                           
052881,000028: 
052882,000029: 23,3541     0142                                  EBANK=   DEXDEX                                
052883,000030: 23,3541                                           COUNT*   $$/POWFL                              
052884,000031: 
052885,000032:                                                                                                  #      CDUTRIG, CDUTRIG1, CDUTRIG2, AND CD*TR*GS ALL COMPUTE THE SINES AND
052886,000033:                                                                                                  #  COSINES OF THREE 2'S COMPLEMENT ANGLES AND PLACE THE RESULT, DOUBLE
052887,000034:                                                                                                  #  PRECISION, IN THE SAME ORDER AS THE INPUTS, AT SINCDU AND COSCDU.   AN
052888,000035:                                                                                                  #  ADDITIONAL OUTPUT IS THE 1'S COMPLEMENT ANGLES AT CDUSPOT.   THESE
052889,000036:                                                                                                  #  ROUTINES GO OUT OF THEIR WAY TO LEAVE THE MPAC AREA AS THEY FIND IT,
052890,000037:                                                                                                  #  EXCEPT FOR THE GENERALLY UNIMPORTANT MPAC +2.   THEY DIFFER ONLY IN
052891,000038:                                                                                                  #  WHERE THEY GET THE ANGLES, AND IN METHOD OF CALLING.
052892,000039: 
052893,000040:                                                                                                  #      CDUTRIG (AND CDUTRIG1, WHICH CAN BE CALLED IN BASIC) COMPUTE THE
052894,000041:                                                                                                  #  SINES AND COSINES FROM THE CURRENT CONTENTS OF THE CDU REGISTERS.
052895,000042:                                                                                                  #  THE CONTENTS OF CDUTEMP, ETC., ARE NOT TOUCHED SO THAT THEY MAY
052896,000043:                                                                                                  #  CONTINUE TO FORM A CONSISTENT SET WITH THE LATEST PIPA READINGS.
052897,000044: 
052898,000045:                                                                                                  #      CDUTRIG1 IS LIKE CDUTRIG EXCEPT THAT IT CAN BE CALLED IN BASIC.
052899,000046: 
052900,000047:                                                                                                  #      CD*TR*GS FINDS CDU VALUES IN CDUSPOT RATHER THAN IN CDUTEMP.   THIS
052901,000048:                                                                                                  #  ALLOWS USERS TO MAKE TRANSFORMATIONS USING ARBITRARY ANGLES, OR REAL
052902,000049:                                                                                                  #  ANGLES IN AN ORDER OTHER THAN X Y Z.   A CALL TO THIS ROUTINE IS
052903,000050:                                                                                                  #  NECESSARY IN PREPARATION FOR A CALL TO AX*SR*T IN EITHER OF ITS TWO
052904,000051:                                                                                                  #  MODES (SMNB OR NBSM).   SINCE AX*SR*T EXPECTS TO FIND THE SINES AND
052905,000052:                                                                                                  #  COSINES IN THE ORDER Y Z X THE ANGLES MUST HAVE BEEN PLACED IN CDUSPOT
052906,000053:                                                                                                  #  IN THIS ORDER.   CD*TR*GS NEED NOT BE REPEATED WHEN AX*SR*T IS CALLED
052907,000054:                                                                                                  #  MORE THAN ONCE, PROVIDED THE ANGLES HAVE NOT CHANGED.   NOTE THAT SINCE
052908,000055:                                                                                                  #  IT CLOBBERS BUF2 (IN THE SINE AND COSINE ROUTINES) CD*TR*GS CANNOT BE
052909,000056:                                                                                                  #  CALLED USING BANKCALL.   SORRY.
052910,000057: 
052911,000058:                                                                                                  #       CD*TR*G IS LIKE CD*TR*GS EXCEPT THAT IT CAN BE CALLED IN
052912,000059:                                                                                                  #  INTERPRETIVE.
052913,000060: 
052914,000061: 23,3541           77776        CDUTRIG            EXIT                                           
052915,000062: 23,3542           03551                           TC       CDUTRIGS                              
052916,000063: 23,3543           06042                           TC       INTPRET                               
052917,000064: 23,3544           77616                           RVQ                                            
052918,000065: 
052919,000066: 23,3545           77776        CD*TR*G            EXIT                                           
052920,000067: 23,3546           03557                           TC       CD*TR*GS                              
052921,000068: 23,3547           06042                           TC       INTPRET                               
052922,000069: 23,3550           77616                           RVQ                                            
052923,000070: 
052924,000071: 23,3551           30032        CDUTRIGS           CA       CDUX                                  
052925,000072: 23,3552           54771                           TS       CDUSPOT    +4                         
052926,000073: 23,3553           30033                           CA       CDUY                                  
052927,000074: 23,3554           54765                           TS       CDUSPOT                               

Page 1250

052929,000076: 23,3555           30034                           CA       CDUZ                                  
052930,000077: 23,3556           54767                           TS       CDUSPOT    +2                         
052931,000078: 
052932,000079: 23,3557           00006        CD*TR*GS           EXTEND                                         
052933,000080: 23,3560           22142                           QXCH     TEM2                                  
052934,000081: 23,3561           34751                           CAF      FOUR                                  
052935,000082: 23,3562           76245        TR*GL**P           MASK     SIX                                   #  MAKE IT EVEN AND SMALLER
052936,000083: 23,3563           54143                           TS       TEM3                                  
052937,000084: 23,3564           50143                           INDEX    TEM3                                  
052938,000085: 23,3565           30765                           CA       CDUSPOT                               
052939,000086: 23,3566           52155                           DXCH     MPAC                                  #  STORING 2'S COMP ANGLE, LOADING MPAC
052940,000087: 23,3567           52127                           DXCH     VBUF       +4                         #  STORING MPAC FOR LATER RESTORATION
052941,000088: 23,3570           04713                           TC       USPRCADR                              
052942,000089: 23,3571           21577                           CADR     CDULOGIC                              
052943,000090: 23,3572           00006                           EXTEND                                         
052944,000091: 23,3573           30155                           DCA      MPAC                                  
052945,000092: 23,3574           50143                           INDEX    TEM3                                  
052946,000093: 23,3575           52766                           DXCH     CDUSPOT                               #  STORING 1'S COMPLEMENT ANGLE
052947,000094: 23,3576           04713                           TC       USPRCADR                              
052948,000095: 23,3577           01517                           CADR     COSINE                                
052949,000096: 23,3600           52155                           DXCH     MPAC                                  
052950,000097: 23,3601           50143                           INDEX    TEM3                                  
052951,000098: 23,3602           52744                           DXCH     COSCDU                                #  STORING COSINE
052952,000099: 23,3603           00006                           EXTEND                                         
052953,000100: 23,3604           50143                           INDEX    TEM3                                  
052954,000101: 23,3605           30766                           DCA      CDUSPOT                               #  LOADING 1'S COMPLEMENT ANGLE
052955,000102: 23,3606           04713                           TC       USPRCADR                              
052956,000103: 23,3607           01531                           CADR     SINE       +1                         #  SINE +1 EXPECTS ARGUMENT IN A AND L
052957,000104: 23,3610           52127                           DXCH     VBUF       +4                         #  BRINGING UP PRIOR MPAC TO BE RESTORED
052958,000105: 23,3611           52155                           DXCH     MPAC                                  
052959,000106: 23,3612           50143                           INDEX    TEM3                                  
052960,000107: 23,3613           52736                           DXCH     SINCDU                                
052961,000108: 23,3614           10143                           CCS      TEM3                                  
052962,000109: 23,3615           13562                           TCF      TR*GL**P                              
052963,000110: 23,3616           00142                           TC       TEM2                                  

Page 1251

052965,000112:                                                                                                  #  ****************************************************************************************************************
052966,000113:                                                                                                  #  QUICTRIG, INTENDED FOR GUIDANCE CYCLE USE WHERE TIME IS CRITICAL, IS A MUCH FASTER VERSION OF CD*TR*GS.
052967,000114:                                                                                                  #  QUICTRIG COMPUTES AND STORES THE SINES AND COSINES OF THE 2'S COMPLEMENT ANGLES AT CDUSPOT, CDUSPOT +2,
052968,000115:                                                                                                  #  AND CDUSPOT +4.   UNLIKE CD*TR*GS, QUICTRIG DOES NOT LEAVE THE 1'S COMPLEMENT VERSIONS OF THE ANGLES IN
052969,000116:                                                                                                  #  CDUSPOT.   QUICTRIG'S EXECUTION TIME IS 4.1 MS;   THIS IS 10 TIMES AS FAST AS CD*TR*GS.   QUICTRIG MAY BE
052970,000117:                                                                                                  #  CALLED FROM INTERPRETIVE AS AN RTB OP-CODE, OR FROM BASIC VIA BANKCALL OR IBNKCALL.
052971,000118: 
052972,000119: 23,3617           00004        QUICTRIG           INHINT                                         #  INHINT SINCE DAP USES THE SAME TEMPS
052973,000120: 23,3620           00006                           EXTEND                                         
052974,000121: 23,3621           22061                           QXCH     ITEMP1                                
052975,000122: 23,3622           34751                           CAF      FOUR                                  
052976,000123: 23,3623           76245                 +4        MASK     SIX                                   
052977,000124: 23,3624           54062                           TS       ITEMP2                                
052978,000125: 23,3625           50062                           INDEX    ITEMP2                                
052979,000126: 23,3626           30765                           CA       CDUSPOT                               
052980,000127: 23,3627           05033                           TC       SPSIN                                 
052981,000128: 23,3630           00006                           EXTEND                                         
052982,000129: 23,3631           74736                           MP       BIT14                                 #  SCALE DOWN TO MATCH INTERPRETER OUTPUTS
052983,000130: 23,3632           50062                           INDEX    ITEMP2                                
052984,000131: 23,3633           52736                           DXCH     SINCDU                                
052985,000132: 23,3634           50062                           INDEX    ITEMP2                                
052986,000133: 23,3635           30765                           CA       CDUSPOT                               
052987,000134: 23,3636           05032                           TC       SPCOS                                 
052988,000135: 23,3637           00006                           EXTEND                                         
052989,000136: 23,3640           74736                           MP       BIT14                                 
052990,000137: 23,3641           50062                           INDEX    ITEMP2                                
052991,000138: 23,3642           52744                           DXCH     COSCDU                                
052992,000139: 23,3643           10062                           CCS      ITEMP2                                
052993,000140: 23,3644           13623                           TCF      QUICTRIG   +4                         
052994,000141: 23,3645           30061                           CA       ITEMP1                                
052995,000142: 23,3646           00003                           RELINT                                         
052996,000143: 23,3647           00000                           TC       A                                     
052997,000144: 

Page 1252

052999,000146:                                                                                                  #  ****************************************************************************************************************
053000,000147:                                                                                                  #       THESE INTERFACE ROUTINES MAKE IT POSSIBLE TO CALL AX*SR*T, ETC., IN
053001,000148:                                                                                                  #  INTERPRETIVE.    LATER, WHERE POSSIBLE, THEY WILL BE ELIMINATED.
053002,000149: 
053003,000150:                                                                                                  #      THESE INTERFACE ROUTINES ARE PERMANENT.   ALL RESTORE USER'S EBANK
053004,000151:                                                                                                  #  SETTING.   ALL ARE STRICT INTERPRETIVE SUBROUTINES, CALLED USING "CALL",
053005,000152:                                                                                                  #  RETURNING VIA QPRET.   ALL EXPECT AND RETURN THE VECTOR TO BE TRANSFOR-
053006,000153:                                                                                                  #  MED INTERPRETER-STYLE IN MPAC; COMPONENTS AT MPAC, MPAC +3, AND MPAC +5.
053007,000154: 
053008,000155:                                                                                                  #       TRG*SMNB AND TRG*NBSM BOTH EXPECT TO SEE THE 2'S COMPLEMENT ANGLES
053009,000156:                                                                                                  #  AT CDUSPOT (ORDER Y Z X, AT CDUSPOT, CDUSPOT +2, AND CDUSPOT +4; ODD
053010,000157:                                                                                                  #  LOCATIONS NEED NOT BE ZEROED).   TRG*NBSM DOES THE NB TO SM TRANSFOR-
053011,000158:                                                                                                  #  MATION;  TRG*SMNB, VICE VERSA.
053012,000159: 
053013,000160:                                                                                                  #      CDU*NBSM DOES ITS TRANSFORMATION USING THE PRESENT CONTENTS OF
053014,000161:                                                                                                  #  THE CDU COUNTERS.   OTHERWISE IT IS LIKE TRG*NBSM.
053015,000162: 
053016,000163:                                                                                                  #      CDU*SMNB IS THE COMPLEMENT OF CDU*NBSM.
053017,000164: 
053018,000165: 23,3650           77776        CDU*SMNB           EXIT                                           
053019,000166: 23,3651           03551                           TC       CDUTRIGS                              
053020,000167: 23,3652           13655                           TCF      C*MM*N1                               
053021,000168: 
053022,000169: 23,3653           77776        TRG*SMNB           EXIT                                           
053023,000170: 23,3654           03557                           TC       CD*TR*GS                              
053024,000171: 23,3655           07535        C*MM*N1            TC       MPACVBUF                              #  AX*SR*T EXPECTS VECTOR IN VBUF
053025,000172: 23,3656           46250                           CS       THREE                                 #  SIGNAL FOR SM TO NB TRANSFORMATION
053026,000173: 23,3657           03677        C*MM*N2            TC       AX*SR*T                               
053027,000174: 23,3660           06042                           TC       INTPRET                               
053028,000175: 23,3661           43575                           VLOAD    RVQ                                   
053029,000176: 23,3662           00123                                    VBUF                                  
053030,000177: 
053031,000178: 23,3663           77776        CDU*NBSM           EXIT                                           
053032,000179: 23,3664           03551                           TC       CDUTRIGS                              
053033,000180: 23,3665           13670                           TCF      C*MM*N3                               
053034,000181: 
053035,000182: 23,3666           77776        TRG*NBSM           EXIT                                           
053036,000183: 23,3667           03557                           TC       CD*TR*GS                              
053037,000184: 23,3670           07535        C*MM*N3            TC       MPACVBUF                              #  FOR AX*SR*T
053038,000185: 23,3671           36250                           CA       THREE                                 #  SIGNAL FOR NB TO SM TRANSFORMATION
053039,000186: 23,3672           13657                           TCF      C*MM*N2                               
053040,000187: 
053041,000188:                                                                                                  #      *NBSM* AND *SMNB* EXPECT TO SEE THE SINES AND COSINES (AT SINCDU
053042,000189:                                                                                                  #  AND COSCDU) RATHER THAN THE ANGLES THEMSELVES.   OTHERWISE THEY ARE
053043,000190:                                                                                                  #  LIKE TRG*NBSM AND TRG*SMNB.
053044,000191: 
053045,000192:                                                                                                  #      NOTE THAT JUST AS CD*TR*GS NEED BE CALLED ONLY ONCE FOR EACH SERIES
053046,000193:                                                                                                  #  OF TRANSFORMATIONS USING THE SAME ANGLES, SO TOO ONLY ONE OF TRG*NBSM

Page 1253

053048,000195:                                                                                                  #  AND TRG*SMNB NEED BE CALLED FOR EACH SERIES.   FOR SUBSEQUENT TRANSFOR-
053049,000196:                                                                                                  #  MATIONS USE *NBSM* AND *SMNB*.
053050,000197: 
053051,000198: 23,3673           77776        *SMNB*             EXIT                                           
053052,000199: 23,3674           13655                           TCF      C*MM*N1                               
053053,000200: 
053054,000201: 23,3675           77776        *NBSM*             EXIT                                           
053055,000202: 23,3676           13670                           TCF      C*MM*N3                               
053056,000203: 
053057,000204:                                                                                                  #        AX*SR*T COMBINES THE OLD SMNB AND NBSM.   FOR THE NB TO SM
053058,000205:                                                                                                  #  TRANSFORMATION, ENTER WITH +3 IN A.   FOR SM TO NB, ENTER WITH -3.
053059,000206:                                                                                                  #  THE VECTOR TO BE TRANSFORMED ARRIVES, AND IS RETURNED, IN VBUF.
053060,000207:                                                                                                  #  AX*SR*T EXPECTS TO FIND THE SINES AND COSINES OF THE ANGLES OF ROTATION
053061,000208:                                                                                                  #  AT SINCDU AND COSCDU, IN THE ORDER Y Z X.   A CALL TO CD*TR*GS, WITH
053062,000209:                                                                                                  #  THE 2'S COMPLEMENT ANGLES (ORDER Y Z X) AT CDUSPOT, WILL TAKE CARE OF
053063,000210:                                                                                                  #  THIS.   HERE IS A SAMPLE CALLING SEQUENCE:-
053064,000211:                                                                                                  #                             TC     CDUTRIGS
053065,000212:                                                                                                  #                             CS     THREE        ("CA THREE" FOR NBSM)
053066,000213:                                                                                                  #                             TC     AX*SR*T
053067,000214:                                                                                                  #  THE CALL TO CD*TR*GS NEED NOT BE REPEATED, WHEN AX*SR*T IS CALLED MORE
053068,000215:                                                                                                  #  THAN ONCE, UNLESS THE ANGLES HAVE CHANGED.
053069,000216: 
053070,000217:                                                                                                  #      AX*SR*T IS GUARANTEED SAFE ONLY FOR VECTORS OF MAGNITUDE LESS THAN
053071,000218:                                                                                                  #  UNITY.   A LOOK AT THE CASE IN WHICH A VECTOR OF GREATER MAGNITUDE
053072,000219:                                                                                                  #  HAPPENS TO LIE ALONG AN AXIS OF THE SYSTEM TO WHICH IT IS TO BE TRANS-
053073,000220:                                                                                                  #  FORMED CONVINCES ONE THAT THIS IS A RESTRICTION WHICH MUST BE ACCEPTED.
053074,000221: 
053075,000222: 23,3677           54142        AX*SR*T            TS       DEXDEX                                #  WHERE IT BECOMES THE INDEX OF INDEXES
053076,000223: 23,3700           00006                           EXTEND                                         
053077,000224: 23,3701           22145                           QXCH     RTNSAVER                              
053078,000225: 
053079,000226: 23,3702           10142        R*TL**P            CCS      DEXDEX                                #          +3 --> 0      -3 --> 2
053080,000227: 23,3703           40142                           CS       DEXDEX                                #  THUS:   +2 --> 1      -2 --> 1
053081,000228: 23,3704           66250                           AD       THREE                                 #          +1 --> 2      -1 --> 0
053082,000229: 23,3705           00006                           EXTEND                                         
053083,000230: 23,3706           50000                           INDEX    A                                     
053084,000231: 23,3707           33766                           DCA      INDEXI                                
053085,000232: 23,3710           52144                           DXCH     DEXI                                  
053086,000233: 
053087,000234: 23,3711           34753                           CA       ONE                                   
053088,000235: 23,3712           54130                           TS       BUF                                   
053089,000236: 23,3713           00006                           EXTEND                                         
053090,000237: 23,3714           50143                           INDEX    DEX1                                  
053091,000238: 23,3715           40123                           DCS      VBUF                                  
053092,000239: 23,3716           13720                           TCF      LOOP1                                 #    REALLY BE A SUBTRACT, AND VICE VERSA
053093,000240: 
053094,000241: 23,3717           52131        LOOP2              DXCH     BUF                                   #  LOADING VECTOR COMPONENT, STORING INDEX

Page 1254

053096,000243: 23,3720           52155        LOOP1              DXCH     MPAC                                  
053097,000244: 23,3721           33764                           CA       SINSLOC                               
053098,000245: 23,3722           60143                           AD       DEX1                                  
053099,000246: 23,3723           54116                           TS       ADDRWD                                
053100,000247: 
053101,000248: 23,3724           07112                           TC       DMPSUB                                #  MULTIPLY BY SIN(CDUANGLE)
053102,000249: 23,3725           10142                           CCS      DEXDEX                                
053103,000250: 23,3726           52155                           DXCH     MPAC                                  #  NBSM CASE
053104,000251: 23,3727           13732                           TCF      +3                                    
053105,000252: 23,3730           00006                           EXTEND                                         #  SMNB CASE
053106,000253: 23,3731           40155                           DCS      MPAC                                  
053107,000254: 23,3732           52160                           DXCH     TERM1TMP                              
053108,000255: 
053109,000256: 23,3733           36245                           CA       SIX                                   #  SINCDU AND COSCDU (EACH 6 WORDS) MUST
053110,000257: 23,3734           26116                           ADS      ADDRWD                                #    BE CONSECUTIVE AND IN THAT ORDER
053111,000258: 
053112,000259: 23,3735           00006                           EXTEND                                         
053113,000260: 23,3736           50130                           INDEX    BUF                                   
053114,000261: 23,3737           50143                           INDEX    DEX1                                  
053115,000262: 23,3740           30123                           DCA      VBUF                                  
053116,000263: 23,3741           52155                           DXCH     MPAC                                  
053117,000264: 23,3742           07112                           TC       DMPSUB                                #  MULTIPLY BY COS(CDUANGLE)
053118,000265: 23,3743           52155                           DXCH     MPAC                                  
053119,000266: 23,3744           20160                           DAS      TERM1TMP                              
053120,000267: 23,3745           52160                           DXCH     TERM1TMP                              
053121,000268: 23,3746           20001                           DDOUBL                                         
053122,000269: 23,3747           50130                           INDEX    BUF                                   
053123,000270: 23,3750           50143                           INDEX    DEX1                                  
053124,000271: 23,3751           52123                           DXCH     VBUF                                  
053125,000272: 23,3752           52131                           DXCH     BUF                                   #  LOADING INDEX, STORING VECTOR COMPONENT
053126,000273: 
053127,000274: 23,3753           10000                           CCS      A                                     #  'CAUSE THAT'S WHERE THE INDEX NOW IS
053128,000275: 23,3754           13717                           TCF      LOOP2                                 
053129,000276: 
053130,000277: 23,3755           00006                           EXTEND                                         
053131,000278: 23,3756           26142                           DIM      DEXDEX                                #  DECREMENT MAGNITUDE PRESERVING SIGN
053132,000279: 
053133,000280: 23,3757           10142        TSTPOINT           CCS      DEXDEX                                #  ONLY THE BRANCHING FUNCTION IS USED
053134,000281: 23,3760           13702                           TCF      R*TL**P                               
053135,000282: 23,3761           00145                           TC       RTNSAVER                              
053136,000283: 23,3762           13702                           TCF      R*TL**P                               
053137,000284: 23,3763           00145                           TC       RTNSAVER                              
053138,000285: 
053139,000286: 23,3764           00735        SINSLOC            ADRES    SINCDU                                #  FOR USE IN SETTING ADDRWD
053140,000287: 
053141,000288: 23,3765           00004        INDEXI             DEC      4          B-14                       #  **********   DON'T   **********
053142,000289: 23,3766           00002                           DEC      2          B-14                       #  **********   TOUCH   **********
053143,000290: 23,3767           00000                           DEC      0          B-14                       #  **********   THESE   **********

Page 1255

053145,000292: 23,3770           00004                           DEC      4          B-14                       #  ********** CONSTANTS **********
053146,000293: 
053147,000294:                                                                                                  #  ****************************************************************************************************************
053148,000295: 
053149,000296: 10,2030                                           BANK     10                                    
053150,000297: 10,2000                                           SETLOC   FLESHLOC                              
053151,000298: 10,2000                                           BANK                                           
053152,000299: 10,2030                                           COUNT*   $$/POWFL                              
053153,000300: 
053154,000301:                                                                                                  #    ROUTINE FLESHPOT COMPUTES THE BODY-STABLE MEMBER TRANSFORMATION MATRIX (COMMONLY CALLED XNB) AND STORES
053155,000302:                                                                                                  #  IT IN THE LOCATIONS SPECIFIED BY THE ECADR ENTERING IN A.
053156,000303: 
053157,000304: 10,2030           77776        CALCSMSC           EXIT                                           
053158,000305: 10,2031           04616                           TC       BANKCALL                              
053159,000306: 10,2032           20036                           CADR     FLESHPOT   -1                         
053160,000307: 10,2033           06042                           TC       INTPRET                               
053161,000308: 10,2034           77616                           RVQ                                            
053162,000309: 
053163,000310: 10,2035           02664        XNBECADR           ECADR    XNB                                   
053164,000311: 
053165,000312: 10,2036           32035                 -1        CAF      XNBECADR                              
053166,000313: 
053167,000314: 10,2037           54142        FLESHPOT           TS       TEM2                                  
053168,000315: 10,2040           56003                           XCH      EBANK                                 
053169,000316: 10,2041           56142                           XCH      TEM2                                  
053170,000317: 10,2042           74357                           MASK     LOW8                                  
053171,000318: 10,2043           65007                           AD       OCT1400                               
053172,000319: 10,2044           54141                           TS       TEM1                                  
053173,000320: 
053174,000321: 10,2045           00006                           EXTEND                                         
053175,000322: 10,2046           30744                           DCA      COSCDUY                               
053176,000323: 10,2047           52155                           DXCH     MPAC                                  
053177,000324: 10,2050           07106                           TC       DMP                                   
053178,000325: 10,2051           00745                           ADRES    COSCDUZ                               
053179,000326: 10,2052           52155                           DXCH     MPAC                                  
053180,000327: 10,2053           20001                           DDOUBL                                         
053181,000328: 10,2054           50141                           INDEX    TEM1                                  
053182,000329: 10,2055           52001                           DXCH     0                                     #  = COSY COSZ
053183,000330: 
053184,000331: 10,2056           00006                           EXTEND                                         
053185,000332: 10,2057           30740                           DCA      SINCDUZ                               
053186,000333: 10,2060           50141                           INDEX    TEM1                                  
053187,000334: 10,2061           52003                           DXCH     2                                     #  = SINZ
053188,000335: 
053189,000336: 10,2062           00006                           EXTEND                                         
053190,000337: 10,2063           40736                           DCS      SINCDUY                               
053191,000338: 10,2064           52155                           DXCH     MPAC                                  
053192,000339: 10,2065           07112                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUZ

Page 1256

053194,000341: 10,2066           52155                           DXCH     MPAC                                  
053195,000342: 10,2067           20001                           DDOUBL                                         
053196,000343: 10,2070           50141                           INDEX    TEM1                                  
053197,000344: 10,2071           52005                           DXCH     4                                     #  = - SINY COSZ
053198,000345: 
053199,000346: 10,2072           00006                           EXTEND                                         
053200,000347: 10,2073           40742                           DCS      SINCDUX                               
053201,000348: 10,2074           52155                           DXCH     MPAC                                  
053202,000349: 10,2075           07112                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUZ STILL
053203,000350: 10,2076           52155                           DXCH     MPAC                                  
053204,000351: 10,2077           20001                           DDOUBL                                         
053205,000352: 10,2100           52160                           DXCH     MPAC       +3                         
053206,000353: 
053207,000354: 10,2101           00006                           EXTEND                                         
053208,000355: 10,2102           40742                           DCS      SINCDUX                               
053209,000356: 10,2103           52155                           DXCH     MPAC                                  
053210,000357: 10,2104           07106                           TC       DMP                                   
053211,000358: 10,2105           00737                           ADRES    SINCDUZ                               
053212,000359: 10,2106           00006                           EXTEND                                         
053213,000360: 10,2107           40155                           DCS      MPAC                                  
053214,000361: 10,2110           52162                           DXCH     MPAC       +5                         
053215,000362: 10,2111           07106                           TC       DMP                                   
053216,000363: 10,2112           00735                           ADRES    SINCDUY                               
053217,000364: 10,2113           52155                           DXCH     MPAC                                  
053218,000365: 10,2114           20001                           DDOUBL                                         
053219,000366: 10,2115           20001                           DDOUBL                                         
053220,000367: 10,2116           52162                           DXCH     MPAC       +5                         
053221,000368: 
053222,000369: 10,2117           52155                           DXCH     MPAC                                  
053223,000370: 10,2120           07106                           TC       DMP                                   
053224,000371: 10,2121           00743                           ADRES    COSCDUY                               
053225,000372: 10,2122           52155                           DXCH     MPAC                                  
053226,000373: 10,2123           20001                           DDOUBL                                         
053227,000374: 10,2124           20001                           DDOUBL                                         
053228,000375: 10,2125           52131                           DXCH     BUF                                   
053229,000376: 
053230,000377: 10,2126           00006                           EXTEND                                         
053231,000378: 10,2127           30744                           DCA      COSCDUY                               
053232,000379: 10,2130           52155                           DXCH     MPAC                                  
053233,000380: 10,2131           07106                           TC       DMP                                   
053234,000381: 10,2132           00747                           ADRES    COSCDUX                               
053235,000382: 10,2133           52155                           DXCH     MPAC                                  
053236,000383: 10,2134           20001                           DDOUBL                                         
053237,000384: 10,2135           20162                           DAS      MPAC       +5                         
053238,000385: 
053239,000386: 10,2136           00006                           EXTEND                                         
053240,000387: 10,2137           30736                           DCA      SINCDUY                               
053241,000388: 10,2140           52155                           DXCH     MPAC                                  
053242,000389: 10,2141           07112                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUX
053243,000390: 10,2142           52155                           DXCH     MPAC                                  
053244,000391: 

Page 1257

053246,000393: 10,2143           20001                           DDOUBL                                         
053247,000394: 10,2144           20131                           DAS      BUF                                   
053248,000395: 
053249,000396: 10,2145           52131                           DXCH     BUF                                   
053250,000397: 10,2146           52155                           DXCH     MPAC                                  
053251,000398: 
053252,000399: 10,2147           00006                           EXTEND                                         
053253,000400: 10,2150           30155                           DCA      MPAC                                  
053254,000401: 10,2151           50141                           INDEX    TEM1                                  
053255,000402: 10,2152           52015                           DXCH     14                                    #  = SINY COSX + SINX SINZ COSY
053256,000403: 
053257,000404: 10,2153           00006                           EXTEND                                         
053258,000405: 10,2154           30160                           DCA      MPAC       +3                         
053259,000406: 10,2155           50141                           INDEX    TEM1                                  
053260,000407: 10,2156           52017                           DXCH     16                                    #  = - SINX COSZ
053261,000408: 
053262,000409: 10,2157           00006                           EXTEND                                         
053263,000410: 10,2160           30162                           DCA      MPAC       +5                         
053264,000411: 10,2161           50141                           INDEX    TEM1                                  
053265,000412: 10,2162           52021                           DXCH     20                                    #  = COSX COSY - SINX SINY SINZ
053266,000413: 
053267,000414: 10,2163           30141                           CA       TEM1                                  
053268,000415: 10,2164           54116                           TS       ADDRWD                                
053269,000416: 10,2165           00006                           EXTEND                                         
053270,000417: 10,2166           30006                           DCA      Z                                     
053271,000418: 10,2167           64751                           AD       FOUR                                  
053272,000419: 10,2170           52165                           DXCH     LOC                                   
053273,000420: 10,2171           34744                           CAF      BIT8                                  
053274,000421: 10,2172           54023                           TS       EDOP                                  
053275,000422: 10,2173           17463                           TCF      VXV                                   
053276,000423: 10,2174           52155                           DXCH     MPAC                                  
053277,000424: 10,2175           20001                           DDOUBL                                         
053278,000425: 10,2176           50141                           INDEX    TEM1                                  
053279,000426: 10,2177           52007                           DXCH     6                                     
053280,000427: 
053281,000428: 10,2200           52160                           DXCH     MPAC       +3                         
053282,000429: 10,2201           20001                           DDOUBL                                         
053283,000430: 10,2202           50141                           INDEX    TEM1                                  
053284,000431: 10,2203           52011                           DXCH     10                                    
053285,000432: 
053286,000433: 10,2204           52162                           DXCH     MPAC       +5                         
053287,000434: 10,2205           20001                           DDOUBL                                         
053288,000435: 10,2206           50141                           INDEX    TEM1                                  
053289,000436: 10,2207           52013                           DXCH     12                                    
053290,000437: 
053291,000438: 10,2210           30142                           CA       TEM2                                  
053292,000439: 10,2211           54003                           TS       EBANK                                 
053293,000440: 10,2212           14631                           TCF      SWRETURN                              
053294,000441: 

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