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.

052864,000002:                                                                                                  ## Copyright:   Public domain.

052865,000003:                                                                                                  ## Filename:    POWERED_FLIGHT_SUBROUTINES.agc

052866,000004:                                                                                                  ## Purpose:     A section of Luminary revision 116.

052867,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM) 

052868,000006:                                                                                                  ##              Apollo Guidance Computer (AGC) for Apollo 12.

052869,000007:                                                                                                  ##              This file is intended to be a faithful transcription, except

052870,000008:                                                                                                  ##              that the code format has been changed to conform to the

052871,000009:                                                                                                  ##              requirements of the yaYUL assembler rather than the

052872,000010:                                                                                                  ##              original YUL assembler.

052873,000011:                                                                                                  ## Reference:   pp. 1249-1257

052874,000012:                                                                                                  ## Assembler:   yaYUL

052875,000013:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.

052876,000014:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html

052877,000015:                                                                                                  ## Mod history: 2017-01-22 MAS  Created from Luminary 99.

052878,000016:                                                                                                  ##              2017-01-25 RRB  Updated for Luminary 116.

052879,000017:                                                                                                  ##              2017-03-14 RSB  Proofed comment text via 3-way diff vs

052880,000018:                                                                                                  ##                              Luminary 99 and 131.

052881,000019:                                                                                                  ##              2017-03-16 RSB  Comment-text fixes identified in 5-way

052882,000020:                                                                                                  ##                              side-by-side diff of Luminary 69/99/116/131/210.

052883,000021:                                                                                                  ##              2017-03-17 RSB  Comment-text fixes identified in diff'ing

052884,000022:                                                                                                  ##                              Luminary 99 vs Comanche 55.

052885,000023: 

Page 1259

052887,000025: 14,3775                                           BANK     14                                    #  SAME FBANK AS THE FINDCDUD SUB-PROGRAM

052888,000026: 23,2000                                           SETLOC   POWFLITE                              
052889,000027: 23,2000                                           BANK                                           
052890,000028: 
052891,000029: 23,3541     0142                                  EBANK=   DEXDEX                                
052892,000030: 23,3541                                           COUNT*   $$/POWFL                              
052893,000031: 
052894,000032:                                                                                                  #      CDUTRIG, CDUTRIG1, CDUTRIG2, AND CD*TR*GS ALL COMPUTE THE SINES AND

052895,000033:                                                                                                  #  COSINES OF THREE 2'S COMPLEMENT ANGLES AND PLACE THE RESULT, DOUBLE

052896,000034:                                                                                                  #  PRECISION, IN THE SAME ORDER AS THE INPUTS, AT SINCDU AND COSCDU.   AN

052897,000035:                                                                                                  #  ADDITIONAL OUTPUT IS THE 1'S COMPLEMENT ANGLES AT CDUSPOT.   THESE

052898,000036:                                                                                                  #  ROUTINES GO OUT OF THEIR WAY TO LEAVE THE MPAC AREA AS THEY FIND IT,

052899,000037:                                                                                                  #  EXCEPT FOR THE GENERALLY UNIMPORTANT MPAC +2.   THEY DIFFER ONLY IN

052900,000038:                                                                                                  #  WHERE THEY GET THE ANGLES, AND IN METHOD OF CALLING.

052901,000039: 
052902,000040:                                                                                                  #      CDUTRIG (AND CDUTRIG1, WHICH CAN BE CALLED IN BASIC) COMPUTE THE

052903,000041:                                                                                                  #  SINES AND COSINES FROM THE CURRENT CONTENTS OF THE CDU REGISTERS.

052904,000042:                                                                                                  #  THE CONTENTS OF CDUTEMP, ETC., ARE NOT TOUCHED SO THAT THEY MAY

052905,000043:                                                                                                  #  CONTINUE TO FORM A CONSISTENT SET WITH THE LATEST PIPA READINGS.

052906,000044: 
052907,000045:                                                                                                  #      CDUTRIG1 IS LIKE CDUTRIG EXCEPT THAT IT CAN BE CALLED IN BASIC.

052908,000046: 
052909,000047:                                                                                                  #      CD*TR*GS FINDS CDU VALUES IN CDUSPOT RATHER THAN IN CDUTEMP.   THIS

052910,000048:                                                                                                  #  ALLOWS USERS TO MAKE TRANSFORMATIONS USING ARBITRARY ANGLES, OR REAL

052911,000049:                                                                                                  #  ANGLES IN AN ORDER OTHER THAN X Y Z.   A CALL TO THIS ROUTINE IS

052912,000050:                                                                                                  #  NECESSARY IN PREPARATION FOR A CALL TO AX*SR*T IN EITHER OF ITS TWO

052913,000051:                                                                                                  #  MODES (SMNB OR NBSM).   SINCE AX*SR*T EXPECTS TO FIND THE SINES AND

052914,000052:                                                                                                  #  COSINES IN THE ORDER Y Z X THE ANGLES MUST HAVE BEEN PLACED IN CDUSPOT

052915,000053:                                                                                                  #  IN THIS ORDER.   CD*TR*GS NEED NOT BE REPEATED WHEN AX*SR*T IS CALLED

052916,000054:                                                                                                  #  MORE THAN ONCE, PROVIDED THE ANGLES HAVE NOT CHANGED.   NOTE THAT SINCE

052917,000055:                                                                                                  #  IT CLOBBERS BUF2 (IN THE SINE AND COSINE ROUTINES) CD*TR*GS CANNOT BE

052918,000056:                                                                                                  #  CALLED USING BANKCALL.   SORRY.

052919,000057: 
052920,000058:                                                                                                  #       CD*TR*G IS LIKE CD*TR*GS EXCEPT THAT IT CAN BE CALLED IN

052921,000059:                                                                                                  #  INTERPRETIVE.

052922,000060: 
052923,000061: 23,3541           77776        CDUTRIG            EXIT                                           
052924,000062: 23,3542           03551                           TC       CDUTRIGS                              
052925,000063: 23,3543           06042                           TC       INTPRET                               
052926,000064: 23,3544           77616                           RVQ                                            
052927,000065: 
052928,000066: 23,3545           77776        CD*TR*G            EXIT                                           
052929,000067: 23,3546           03557                           TC       CD*TR*GS                              
052930,000068: 23,3547           06042                           TC       INTPRET                               
052931,000069: 23,3550           77616                           RVQ                                            
052932,000070: 
052933,000071: 23,3551           30032        CDUTRIGS           CA       CDUX                                  
052934,000072: 23,3552           54771                           TS       CDUSPOT    +4                         
052935,000073: 23,3553           30033                           CA       CDUY                                  
052936,000074: 23,3554           54765                           TS       CDUSPOT                               

Page 1250

052938,000076: 23,3555           30034                           CA       CDUZ                                  
052939,000077: 23,3556           54767                           TS       CDUSPOT    +2                         
052940,000078: 
052941,000079: 23,3557           00006        CD*TR*GS           EXTEND                                         
052942,000080: 23,3560           22142                           QXCH     TEM2                                  
052943,000081: 23,3561           34751                           CAF      FOUR                                  
052944,000082: 23,3562           76245        TR*GL**P           MASK     SIX                                   #  MAKE IT EVEN AND SMALLER

052945,000083: 23,3563           54143                           TS       TEM3                                  
052946,000084: 23,3564           50143                           INDEX    TEM3                                  
052947,000085: 23,3565           30765                           CA       CDUSPOT                               
052948,000086: 23,3566           52155                           DXCH     MPAC                                  #  STORING 2'S COMP ANGLE, LOADING MPAC

052949,000087: 23,3567           52127                           DXCH     VBUF       +4                         #  STORING MPAC FOR LATER RESTORATION

052950,000088: 23,3570           04713                           TC       USPRCADR                              
052951,000089: 23,3571           21577                           CADR     CDULOGIC                              
052952,000090: 23,3572           00006                           EXTEND                                         
052953,000091: 23,3573           30155                           DCA      MPAC                                  
052954,000092: 23,3574           50143                           INDEX    TEM3                                  
052955,000093: 23,3575           52766                           DXCH     CDUSPOT                               #  STORING 1'S COMPLEMENT ANGLE

052956,000094: 23,3576           04713                           TC       USPRCADR                              
052957,000095: 23,3577           01517                           CADR     COSINE                                
052958,000096: 23,3600           52155                           DXCH     MPAC                                  
052959,000097: 23,3601           50143                           INDEX    TEM3                                  
052960,000098: 23,3602           52744                           DXCH     COSCDU                                #  STORING COSINE

052961,000099: 23,3603           00006                           EXTEND                                         
052962,000100: 23,3604           50143                           INDEX    TEM3                                  
052963,000101: 23,3605           30766                           DCA      CDUSPOT                               #  LOADING 1'S COMPLEMENT ANGLE

052964,000102: 23,3606           04713                           TC       USPRCADR                              
052965,000103: 23,3607           01531                           CADR     SINE       +1                         #  SINE +1 EXPECTS ARGUMENT IN A AND L

052966,000104: 23,3610           52127                           DXCH     VBUF       +4                         #  BRINGING UP PRIOR MPAC TO BE RESTORED

052967,000105: 23,3611           52155                           DXCH     MPAC                                  
052968,000106: 23,3612           50143                           INDEX    TEM3                                  
052969,000107: 23,3613           52736                           DXCH     SINCDU                                
052970,000108: 23,3614           10143                           CCS      TEM3                                  
052971,000109: 23,3615           13562                           TCF      TR*GL**P                              
052972,000110: 23,3616           00142                           TC       TEM2                                  

Page 1251

052974,000112:                                                                                                  #  ****************************************************************************************************************

052975,000113:                                                                                                  #  QUICTRIG, INTENDED FOR GUIDANCE CYCLE USE WHERE TIME IS CRITICAL, IS A MUCH FASTER VERSION OF CD*TR*GS.

052976,000114:                                                                                                  #  QUICTRIG COMPUTES AND STORES THE SINES AND COSINES OF THE 2'S COMPLEMENT ANGLES AT CDUSPOT, CDUSPOT +2,

052977,000115:                                                                                                  #  AND CDUSPOT +4.   UNLIKE CD*TR*GS, QUICTRIG DOES NOT LEAVE THE 1'S COMPLEMENT VERSIONS OF THE ANGLES IN

052978,000116:                                                                                                  #  CDUSPOT.   QUICTRIG'S EXECUTION TIME IS 4.1 MS;   THIS IS 10 TIMES AS FAST AS CD*TR*GS.   QUICTRIG MAY BE

052979,000117:                                                                                                  #  CALLED FROM INTERPRETIVE AS AN RTB OP-CODE, OR FROM BASIC VIA BANKCALL OR IBNKCALL.

052980,000118: 
052981,000119: 23,3617           00004        QUICTRIG           INHINT                                         #  INHINT SINCE DAP USES THE SAME TEMPS

052982,000120: 23,3620           00006                           EXTEND                                         
052983,000121: 23,3621           22061                           QXCH     ITEMP1                                
052984,000122: 23,3622           34751                           CAF      FOUR                                  
052985,000123: 23,3623           76245                 +4        MASK     SIX                                   
052986,000124: 23,3624           54062                           TS       ITEMP2                                
052987,000125: 23,3625           50062                           INDEX    ITEMP2                                
052988,000126: 23,3626           30765                           CA       CDUSPOT                               
052989,000127: 23,3627           05033                           TC       SPSIN                                 
052990,000128: 23,3630           00006                           EXTEND                                         
052991,000129: 23,3631           74736                           MP       BIT14                                 #  SCALE DOWN TO MATCH INTERPRETER OUTPUTS

052992,000130: 23,3632           50062                           INDEX    ITEMP2                                
052993,000131: 23,3633           52736                           DXCH     SINCDU                                
052994,000132: 23,3634           50062                           INDEX    ITEMP2                                
052995,000133: 23,3635           30765                           CA       CDUSPOT                               
052996,000134: 23,3636           05032                           TC       SPCOS                                 
052997,000135: 23,3637           00006                           EXTEND                                         
052998,000136: 23,3640           74736                           MP       BIT14                                 
052999,000137: 23,3641           50062                           INDEX    ITEMP2                                
053000,000138: 23,3642           52744                           DXCH     COSCDU                                
053001,000139: 23,3643           10062                           CCS      ITEMP2                                
053002,000140: 23,3644           13623                           TCF      QUICTRIG   +4                         
053003,000141: 23,3645           30061                           CA       ITEMP1                                
053004,000142: 23,3646           00003                           RELINT                                         
053005,000143: 23,3647           00000                           TC       A                                     
053006,000144: 

Page 1252

053008,000146:                                                                                                  #  ****************************************************************************************************************

053009,000147:                                                                                                  #       THESE INTERFACE ROUTINES MAKE IT POSSIBLE TO CALL AX*SR*T, ETC., IN

053010,000148:                                                                                                  #  INTERPRETIVE.    LATER, WHERE POSSIBLE, THEY WILL BE ELIMINATED.

053011,000149: 
053012,000150:                                                                                                  #      THESE INTERFACE ROUTINES ARE PERMANENT.   ALL RESTORE USER'S EBANK

053013,000151:                                                                                                  #  SETTING.   ALL ARE STRICT INTERPRETIVE SUBROUTINES, CALLED USING "CALL",

053014,000152:                                                                                                  #  RETURNING VIA QPRET.   ALL EXPECT AND RETURN THE VECTOR TO BE TRANSFOR-

053015,000153:                                                                                                  #  MED INTERPRETER-STYLE IN MPAC; COMPONENTS AT MPAC, MPAC +3, AND MPAC +5.

053016,000154: 
053017,000155:                                                                                                  #       TRG*SMNB AND TRG*NBSM BOTH EXPECT TO SEE THE 2'S COMPLEMENT ANGLES

053018,000156:                                                                                                  #  AT CDUSPOT (ORDER Y Z X, AT CDUSPOT, CDUSPOT +2, AND CDUSPOT +4; ODD

053019,000157:                                                                                                  #  LOCATIONS NEED NOT BE ZEROED).   TRG*NBSM DOES THE NB TO SM TRANSFOR-

053020,000158:                                                                                                  #  MATION;  TRG*SMNB, VICE VERSA.

053021,000159: 
053022,000160:                                                                                                  #      CDU*NBSM DOES ITS TRANSFORMATION USING THE PRESENT CONTENTS OF

053023,000161:                                                                                                  #  THE CDU COUNTERS.   OTHERWISE IT IS LIKE TRG*NBSM.

053024,000162: 
053025,000163:                                                                                                  #      CDU*SMNB IS THE COMPLEMENT OF CDU*NBSM.

053026,000164: 
053027,000165: 23,3650           77776        CDU*SMNB           EXIT                                           
053028,000166: 23,3651           03551                           TC       CDUTRIGS                              
053029,000167: 23,3652           13655                           TCF      C*MM*N1                               
053030,000168: 
053031,000169: 23,3653           77776        TRG*SMNB           EXIT                                           
053032,000170: 23,3654           03557                           TC       CD*TR*GS                              
053033,000171: 23,3655           07535        C*MM*N1            TC       MPACVBUF                              #  AX*SR*T EXPECTS VECTOR IN VBUF

053034,000172: 23,3656           46250                           CS       THREE                                 #  SIGNAL FOR SM TO NB TRANSFORMATION

053035,000173: 23,3657           03677        C*MM*N2            TC       AX*SR*T                               
053036,000174: 23,3660           06042                           TC       INTPRET                               
053037,000175: 23,3661           43575                           VLOAD    RVQ                                   
053038,000176: 23,3662           00123                                    VBUF                                  
053039,000177: 
053040,000178: 23,3663           77776        CDU*NBSM           EXIT                                           
053041,000179: 23,3664           03551                           TC       CDUTRIGS                              
053042,000180: 23,3665           13670                           TCF      C*MM*N3                               
053043,000181: 
053044,000182: 23,3666           77776        TRG*NBSM           EXIT                                           
053045,000183: 23,3667           03557                           TC       CD*TR*GS                              
053046,000184: 23,3670           07535        C*MM*N3            TC       MPACVBUF                              #  FOR AX*SR*T

053047,000185: 23,3671           36250                           CA       THREE                                 #  SIGNAL FOR NB TO SM TRANSFORMATION

053048,000186: 23,3672           13657                           TCF      C*MM*N2                               
053049,000187: 
053050,000188:                                                                                                  #      *NBSM* AND *SMNB* EXPECT TO SEE THE SINES AND COSINES (AT SINCDU

053051,000189:                                                                                                  #  AND COSCDU) RATHER THAN THE ANGLES THEMSELVES.   OTHERWISE THEY ARE

053052,000190:                                                                                                  #  LIKE TRG*NBSM AND TRG*SMNB.

053053,000191: 
053054,000192:                                                                                                  #      NOTE THAT JUST AS CD*TR*GS NEED BE CALLED ONLY ONCE FOR EACH SERIES

053055,000193:                                                                                                  #  OF TRANSFORMATIONS USING THE SAME ANGLES, SO TOO ONLY ONE OF TRG*NBSM

Page 1253

053057,000195:                                                                                                  #  AND TRG*SMNB NEED BE CALLED FOR EACH SERIES.   FOR SUBSEQUENT TRANSFOR-

053058,000196:                                                                                                  #  MATIONS USE *NBSM* AND *SMNB*.

053059,000197: 
053060,000198: 23,3673           77776        *SMNB*             EXIT                                           
053061,000199: 23,3674           13655                           TCF      C*MM*N1                               
053062,000200: 
053063,000201: 23,3675           77776        *NBSM*             EXIT                                           
053064,000202: 23,3676           13670                           TCF      C*MM*N3                               
053065,000203: 
053066,000204:                                                                                                  #        AX*SR*T COMBINES THE OLD SMNB AND NBSM.   FOR THE NB TO SM

053067,000205:                                                                                                  #  TRANSFORMATION, ENTER WITH +3 IN A.   FOR SM TO NB, ENTER WITH -3.

053068,000206:                                                                                                  #  THE VECTOR TO BE TRANSFORMED ARRIVES, AND IS RETURNED, IN VBUF.

053069,000207:                                                                                                  #  AX*SR*T EXPECTS TO FIND THE SINES AND COSINES OF THE ANGLES OF ROTATION

053070,000208:                                                                                                  #  AT SINCDU AND COSCDU, IN THE ORDER Y Z X.   A CALL TO CD*TR*GS, WITH

053071,000209:                                                                                                  #  THE 2'S COMPLEMENT ANGLES (ORDER Y Z X) AT CDUSPOT, WILL TAKE CARE OF

053072,000210:                                                                                                  #  THIS.   HERE IS A SAMPLE CALLING SEQUENCE:-

053073,000211:                                                                                                  #                             TC     CDUTRIGS

053074,000212:                                                                                                  #                             CS     THREE        ("CA THREE" FOR NBSM)

053075,000213:                                                                                                  #                             TC     AX*SR*T

053076,000214:                                                                                                  #  THE CALL TO CD*TR*GS NEED NOT BE REPEATED, WHEN AX*SR*T IS CALLED MORE

053077,000215:                                                                                                  #  THAN ONCE, UNLESS THE ANGLES HAVE CHANGED.

053078,000216: 
053079,000217:                                                                                                  #      AX*SR*T IS GUARANTEED SAFE ONLY FOR VECTORS OF MAGNITUDE LESS THAN

053080,000218:                                                                                                  #  UNITY.   A LOOK AT THE CASE IN WHICH A VECTOR OF GREATER MAGNITUDE

053081,000219:                                                                                                  #  HAPPENS TO LIE ALONG AN AXIS OF THE SYSTEM TO WHICH IT IS TO BE TRANS-

053082,000220:                                                                                                  #  FORMED CONVINCES ONE THAT THIS IS A RESTRICTION WHICH MUST BE ACCEPTED.

053083,000221: 
053084,000222: 23,3677           54142        AX*SR*T            TS       DEXDEX                                #  WHERE IT BECOMES THE INDEX OF INDEXES

053085,000223: 23,3700           00006                           EXTEND                                         
053086,000224: 23,3701           22145                           QXCH     RTNSAVER                              
053087,000225: 
053088,000226: 23,3702           10142        R*TL**P            CCS      DEXDEX                                #          +3 --> 0      -3 --> 2

053089,000227: 23,3703           40142                           CS       DEXDEX                                #  THUS:   +2 --> 1      -2 --> 1

053090,000228: 23,3704           66250                           AD       THREE                                 #          +1 --> 2      -1 --> 0

053091,000229: 23,3705           00006                           EXTEND                                         
053092,000230: 23,3706           50000                           INDEX    A                                     
053093,000231: 23,3707           33766                           DCA      INDEXI                                
053094,000232: 23,3710           52144                           DXCH     DEXI                                  
053095,000233: 
053096,000234: 23,3711           34753                           CA       ONE                                   
053097,000235: 23,3712           54130                           TS       BUF                                   
053098,000236: 23,3713           00006                           EXTEND                                         
053099,000237: 23,3714           50143                           INDEX    DEX1                                  
053100,000238: 23,3715           40123                           DCS      VBUF                                  
053101,000239: 23,3716           13720                           TCF      LOOP1                                 #    REALLY BE A SUBTRACT, AND VICE VERSA

053102,000240: 
053103,000241: 23,3717           52131        LOOP2              DXCH     BUF                                   #  LOADING VECTOR COMPONENT, STORING INDEX

Page 1254

053105,000243: 23,3720           52155        LOOP1              DXCH     MPAC                                  
053106,000244: 23,3721           33764                           CA       SINSLOC                               
053107,000245: 23,3722           60143                           AD       DEX1                                  
053108,000246: 23,3723           54116                           TS       ADDRWD                                
053109,000247: 
053110,000248: 23,3724           07112                           TC       DMPSUB                                #  MULTIPLY BY SIN(CDUANGLE)

053111,000249: 23,3725           10142                           CCS      DEXDEX                                
053112,000250: 23,3726           52155                           DXCH     MPAC                                  #  NBSM CASE

053113,000251: 23,3727           13732                           TCF      +3                                    
053114,000252: 23,3730           00006                           EXTEND                                         #  SMNB CASE

053115,000253: 23,3731           40155                           DCS      MPAC                                  
053116,000254: 23,3732           52160                           DXCH     TERM1TMP                              
053117,000255: 
053118,000256: 23,3733           36245                           CA       SIX                                   #  SINCDU AND COSCDU (EACH 6 WORDS) MUST

053119,000257: 23,3734           26116                           ADS      ADDRWD                                #    BE CONSECUTIVE AND IN THAT ORDER

053120,000258: 
053121,000259: 23,3735           00006                           EXTEND                                         
053122,000260: 23,3736           50130                           INDEX    BUF                                   
053123,000261: 23,3737           50143                           INDEX    DEX1                                  
053124,000262: 23,3740           30123                           DCA      VBUF                                  
053125,000263: 23,3741           52155                           DXCH     MPAC                                  
053126,000264: 23,3742           07112                           TC       DMPSUB                                #  MULTIPLY BY COS(CDUANGLE)

053127,000265: 23,3743           52155                           DXCH     MPAC                                  
053128,000266: 23,3744           20160                           DAS      TERM1TMP                              
053129,000267: 23,3745           52160                           DXCH     TERM1TMP                              
053130,000268: 23,3746           20001                           DDOUBL                                         
053131,000269: 23,3747           50130                           INDEX    BUF                                   
053132,000270: 23,3750           50143                           INDEX    DEX1                                  
053133,000271: 23,3751           52123                           DXCH     VBUF                                  
053134,000272: 23,3752           52131                           DXCH     BUF                                   #  LOADING INDEX, STORING VECTOR COMPONENT

053135,000273: 
053136,000274: 23,3753           10000                           CCS      A                                     #  'CAUSE THAT'S WHERE THE INDEX NOW IS

053137,000275: 23,3754           13717                           TCF      LOOP2                                 
053138,000276: 
053139,000277: 23,3755           00006                           EXTEND                                         
053140,000278: 23,3756           26142                           DIM      DEXDEX                                #  DECREMENT MAGNITUDE PRESERVING SIGN

053141,000279: 
053142,000280: 23,3757           10142        TSTPOINT           CCS      DEXDEX                                #  ONLY THE BRANCHING FUNCTION IS USED

053143,000281: 23,3760           13702                           TCF      R*TL**P                               
053144,000282: 23,3761           00145                           TC       RTNSAVER                              
053145,000283: 23,3762           13702                           TCF      R*TL**P                               
053146,000284: 23,3763           00145                           TC       RTNSAVER                              
053147,000285: 
053148,000286: 23,3764           00735        SINSLOC            ADRES    SINCDU                                #  FOR USE IN SETTING ADDRWD

053149,000287: 
053150,000288: 23,3765           00004        INDEXI             DEC      4          B-14                       #  **********   DON'T   **********

053151,000289: 23,3766           00002                           DEC      2          B-14                       #  **********   TOUCH   **********

053152,000290: 23,3767           00000                           DEC      0          B-14                       #  **********   THESE   **********

Page 1255

053154,000292: 23,3770           00004                           DEC      4          B-14                       #  ********** CONSTANTS **********

053155,000293: 
053156,000294:                                                                                                  #  ****************************************************************************************************************

053157,000295: 
053158,000296: 10,2030                                           BANK     10                                    
053159,000297: 10,2000                                           SETLOC   FLESHLOC                              
053160,000298: 10,2000                                           BANK                                           
053161,000299: 10,2030                                           COUNT*   $$/POWFL                              
053162,000300: 
053163,000301:                                                                                                  #    ROUTINE FLESHPOT COMPUTES THE BODY-STABLE MEMBER TRANSFORMATION MATRIX (COMMONLY CALLED XNB) AND STORES

053164,000302:                                                                                                  #  IT IN THE LOCATIONS SPECIFIED BY THE ECADR ENTERING IN A.

053165,000303: 
053166,000304: 10,2030           77776        CALCSMSC           EXIT                                           
053167,000305: 10,2031           04616                           TC       BANKCALL                              
053168,000306: 10,2032           20036                           CADR     FLESHPOT   -1                         
053169,000307: 10,2033           06042                           TC       INTPRET                               
053170,000308: 10,2034           77616                           RVQ                                            
053171,000309: 
053172,000310: 10,2035           02664        XNBECADR           ECADR    XNB                                   
053173,000311: 
053174,000312: 10,2036           32035                 -1        CAF      XNBECADR                              
053175,000313: 
053176,000314: 10,2037           54142        FLESHPOT           TS       TEM2                                  
053177,000315: 10,2040           56003                           XCH      EBANK                                 
053178,000316: 10,2041           56142                           XCH      TEM2                                  
053179,000317: 10,2042           74357                           MASK     LOW8                                  
053180,000318: 10,2043           65007                           AD       OCT1400                               
053181,000319: 10,2044           54141                           TS       TEM1                                  
053182,000320: 
053183,000321: 10,2045           00006                           EXTEND                                         
053184,000322: 10,2046           30744                           DCA      COSCDUY                               
053185,000323: 10,2047           52155                           DXCH     MPAC                                  
053186,000324: 10,2050           07106                           TC       DMP                                   
053187,000325: 10,2051           00745                           ADRES    COSCDUZ                               
053188,000326: 10,2052           52155                           DXCH     MPAC                                  
053189,000327: 10,2053           20001                           DDOUBL                                         
053190,000328: 10,2054           50141                           INDEX    TEM1                                  
053191,000329: 10,2055           52001                           DXCH     0                                     #  = COSY COSZ

053192,000330: 
053193,000331: 10,2056           00006                           EXTEND                                         
053194,000332: 10,2057           30740                           DCA      SINCDUZ                               
053195,000333: 10,2060           50141                           INDEX    TEM1                                  
053196,000334: 10,2061           52003                           DXCH     2                                     #  = SINZ

053197,000335: 
053198,000336: 10,2062           00006                           EXTEND                                         
053199,000337: 10,2063           40736                           DCS      SINCDUY                               
053200,000338: 10,2064           52155                           DXCH     MPAC                                  
053201,000339: 10,2065           07112                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUZ

Page 1256

053203,000341: 10,2066           52155                           DXCH     MPAC                                  
053204,000342: 10,2067           20001                           DDOUBL                                         
053205,000343: 10,2070           50141                           INDEX    TEM1                                  
053206,000344: 10,2071           52005                           DXCH     4                                     #  = - SINY COSZ

053207,000345: 
053208,000346: 10,2072           00006                           EXTEND                                         
053209,000347: 10,2073           40742                           DCS      SINCDUX                               
053210,000348: 10,2074           52155                           DXCH     MPAC                                  
053211,000349: 10,2075           07112                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUZ STILL

053212,000350: 10,2076           52155                           DXCH     MPAC                                  
053213,000351: 10,2077           20001                           DDOUBL                                         
053214,000352: 10,2100           52160                           DXCH     MPAC       +3                         
053215,000353: 
053216,000354: 10,2101           00006                           EXTEND                                         
053217,000355: 10,2102           40742                           DCS      SINCDUX                               
053218,000356: 10,2103           52155                           DXCH     MPAC                                  
053219,000357: 10,2104           07106                           TC       DMP                                   
053220,000358: 10,2105           00737                           ADRES    SINCDUZ                               
053221,000359: 10,2106           00006                           EXTEND                                         
053222,000360: 10,2107           40155                           DCS      MPAC                                  
053223,000361: 10,2110           52162                           DXCH     MPAC       +5                         
053224,000362: 10,2111           07106                           TC       DMP                                   
053225,000363: 10,2112           00735                           ADRES    SINCDUY                               
053226,000364: 10,2113           52155                           DXCH     MPAC                                  
053227,000365: 10,2114           20001                           DDOUBL                                         
053228,000366: 10,2115           20001                           DDOUBL                                         
053229,000367: 10,2116           52162                           DXCH     MPAC       +5                         
053230,000368: 
053231,000369: 10,2117           52155                           DXCH     MPAC                                  
053232,000370: 10,2120           07106                           TC       DMP                                   
053233,000371: 10,2121           00743                           ADRES    COSCDUY                               
053234,000372: 10,2122           52155                           DXCH     MPAC                                  
053235,000373: 10,2123           20001                           DDOUBL                                         
053236,000374: 10,2124           20001                           DDOUBL                                         
053237,000375: 10,2125           52131                           DXCH     BUF                                   
053238,000376: 
053239,000377: 10,2126           00006                           EXTEND                                         
053240,000378: 10,2127           30744                           DCA      COSCDUY                               
053241,000379: 10,2130           52155                           DXCH     MPAC                                  
053242,000380: 10,2131           07106                           TC       DMP                                   
053243,000381: 10,2132           00747                           ADRES    COSCDUX                               
053244,000382: 10,2133           52155                           DXCH     MPAC                                  
053245,000383: 10,2134           20001                           DDOUBL                                         
053246,000384: 10,2135           20162                           DAS      MPAC       +5                         
053247,000385: 
053248,000386: 10,2136           00006                           EXTEND                                         
053249,000387: 10,2137           30736                           DCA      SINCDUY                               
053250,000388: 10,2140           52155                           DXCH     MPAC                                  
053251,000389: 10,2141           07112                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUX

053252,000390: 10,2142           52155                           DXCH     MPAC                                  
053253,000391: 

Page 1257

053255,000393: 10,2143           20001                           DDOUBL                                         
053256,000394: 10,2144           20131                           DAS      BUF                                   
053257,000395: 
053258,000396: 10,2145           52131                           DXCH     BUF                                   
053259,000397: 10,2146           52155                           DXCH     MPAC                                  
053260,000398: 
053261,000399: 10,2147           00006                           EXTEND                                         
053262,000400: 10,2150           30155                           DCA      MPAC                                  
053263,000401: 10,2151           50141                           INDEX    TEM1                                  
053264,000402: 10,2152           52015                           DXCH     14                                    #  = SINY COSX + SINX SINZ COSY

053265,000403: 
053266,000404: 10,2153           00006                           EXTEND                                         
053267,000405: 10,2154           30160                           DCA      MPAC       +3                         
053268,000406: 10,2155           50141                           INDEX    TEM1                                  
053269,000407: 10,2156           52017                           DXCH     16                                    #  = - SINX COSZ

053270,000408: 
053271,000409: 10,2157           00006                           EXTEND                                         
053272,000410: 10,2160           30162                           DCA      MPAC       +5                         
053273,000411: 10,2161           50141                           INDEX    TEM1                                  
053274,000412: 10,2162           52021                           DXCH     20                                    #  = COSX COSY - SINX SINY SINZ

053275,000413: 
053276,000414: 10,2163           30141                           CA       TEM1                                  
053277,000415: 10,2164           54116                           TS       ADDRWD                                
053278,000416: 10,2165           00006                           EXTEND                                         
053279,000417: 10,2166           30006                           DCA      Z                                     
053280,000418: 10,2167           64751                           AD       FOUR                                  
053281,000419: 10,2170           52165                           DXCH     LOC                                   
053282,000420: 10,2171           34744                           CAF      BIT8                                  
053283,000421: 10,2172           54023                           TS       EDOP                                  
053284,000422: 10,2173           17463                           TCF      VXV                                   
053285,000423: 10,2174           52155                           DXCH     MPAC                                  
053286,000424: 10,2175           20001                           DDOUBL                                         
053287,000425: 10,2176           50141                           INDEX    TEM1                                  
053288,000426: 10,2177           52007                           DXCH     6                                     
053289,000427: 
053290,000428: 10,2200           52160                           DXCH     MPAC       +3                         
053291,000429: 10,2201           20001                           DDOUBL                                         
053292,000430: 10,2202           50141                           INDEX    TEM1                                  
053293,000431: 10,2203           52011                           DXCH     10                                    
053294,000432: 
053295,000433: 10,2204           52162                           DXCH     MPAC       +5                         
053296,000434: 10,2205           20001                           DDOUBL                                         
053297,000435: 10,2206           50141                           INDEX    TEM1                                  
053298,000436: 10,2207           52013                           DXCH     12                                    
053299,000437: 
053300,000438: 10,2210           30142                           CA       TEM2                                  
053301,000439: 10,2211           54003                           TS       EBANK                                 
053302,000440: 10,2212           14631                           TCF      SWRETURN                              
053303,000441: 

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