Source Code

These source-code files were from the printout at the MIT Museum, with many thanks to Deborah Douglas, the Museum's Curator of Science and Technology, for releasing it to us. The printout was digitally photographed by Paul Fjeld. A team of volunteers transcribed the source code manually from these images or, where appropriate, modified already-transcribed but similar source Luminary 131 (Apollo 13) source code to agree with the images from the printout. Note that the page images presented online are of reduced quality, and that higher-quality images are available. Report any conversion errors or legibility problems in page images to info@sandroid.org. Notations on the program listing read, in part:

	GAP:  ASSEMBLE REVISION 001 OF AGC PROGRAM LMY99 BY NASA 2021112-061
	16:27 JULY 14,1969
Note that the date is the date of the printout, not the date of the program revision.

053823,000002:                                                                                                  ## Copyright:   Public domain.
053824,000003:                                                                                                  ## Filename:    POWERED_FLIGHT_SUBROUTINES.agc
053825,000004:                                                                                                  ## Purpose:     Part of the source code for Luminary 1A build 099.
053826,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM)
053827,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
053828,000007:                                                                                                  ## Assembler:   yaYUL
053829,000008:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
053830,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo.
053831,000010:                                                                                                  ## Pages:       1259-1267
053832,000011:                                                                                                  ## Mod history: 2009-05-26 RSB  Adapted from the corresponding 
053833,000012:                                                                                                  ##                              Luminary131 file, using page 
053834,000013:                                                                                                  ##                              images from Luminary 1A.
053835,000014:                                                                                                  ##              2011-01-06 JL   Fixed pseudo-label indentation.
053836,000015:                                                                                                  ##              2016-12-17 RSB  Proofed text comments with octopus/ProoferComments
053837,000016:                                                                                                  ##                              and corrected the errors found.
053838,000017:                                                                                                  ##              2017-03-16 RSB  Comment-text fixes identified in 5-way
053839,000018:                                                                                                  ##                              side-by-side diff of Luminary 69/99/116/131/210.
053840,000019:                                                                                                  ##              2017-03-17 RSB  Comment-text fixes identified in diff'ing
053841,000020:                                                                                                  ##                              Luminary 99 vs Comanche 55.
053842,000021:                                                                                                  ##              2021-05-30 ABS  SINSLOC -> SINESLOC
053843,000022: 
053844,000023:                                                                                                  ## This source code has been transcribed or otherwise adapted from
053845,000024:                                                                                                  ## digitized images of a hardcopy from the MIT Museum.  The digitization
053846,000025:                                                                                                  ## was performed by Paul Fjeld, and arranged for by Deborah Douglas of
053847,000026:                                                                                                  ## the Museum.  Many thanks to both.  The images (with suitable reduction
053848,000027:                                                                                                  ## in storage size and consequent reduction in image quality as well) are
053849,000028:                                                                                                  ## available online at www.ibiblio.org/apollo.  If for some reason you
053850,000029:                                                                                                  ## find that the images are illegible, contact me at info@sandroid.org
053851,000030:                                                                                                  ## about getting access to the (much) higher-quality images which Paul
053852,000031:                                                                                                  ## actually created.
053853,000032:                                                                                                  ##
053854,000033:                                                                                                  ## Notations on the hardcopy document read, in part:
053855,000034:                                                                                                  ##
053856,000035:                                                                                                  ##      Assemble revision 001 of AGC program LMY99 by NASA 2021112-61
053857,000036:                                                                                                  ##      16:27 JULY 14, 1969 
053858,000037: 

Page 1259

053860,000039: 14,3774                                           BANK     14                                    #  SAME FBANK AS THE FINDCDUD SUB-PROGRAM
053861,000040: 23,2000                                           SETLOC   POWFLITE                              
053862,000041: 23,2000                                           BANK                                           
053863,000042: 
053864,000043: 23,3537     0142                                  EBANK=   DEXDEX                                
053865,000044: 23,3537                                           COUNT*   $$/POWFL                              
053866,000045: 
053867,000046:                                                                                                  #  CDUTRIG, CDUTRIG1, CDUTRIG2, AND CD*TR*GS ALL COMPUTE THE SINES AND
053868,000047:                                                                                                  #  COSINES OF THREE 2'S COMPLEMENT ANGLES AND PLACE THE RESULT, DOUBLE
053869,000048:                                                                                                  #  PRECISION, IN THE SAME ORDER AS THE INPUTS, AT SINCDU AND COSCDU.  AN
053870,000049:                                                                                                  #  ADDITIONAL OUTPUT IS THE 1'S COMPLEMENT ANGLES AT CDUSPOT.  THESE
053871,000050:                                                                                                  #  ROUTINES GO OUT OF THEIR WAY TO LEAVE THE MPAC AREA AS THEY FIND IT,
053872,000051:                                                                                                  #  EXCEPT FOR THE GENERALLY UNIMPORTANT MPAC +2.  THEY DIFFER ONLY IN
053873,000052:                                                                                                  #  WHERE THEY GET THE ANGLES, AND IN METHOD OF CALLING.
053874,000053: 
053875,000054:                                                                                                  #  CDUTRIG (AND CDUTRIG1, WHICH CAN BE CALLED IN BASIC) COMPUTE THE
053876,000055:                                                                                                  #  SINES AND COSINES FROM THE CURRENT CONTENTS OF THE CDU REGISTERS.
053877,000056:                                                                                                  #  THE CONTENTS OF CDUTEMP, ETC., ARE NOT TOUCHED SO THAT THEY MAY
053878,000057:                                                                                                  #  CONTINUE TO FORM A CONSISTENT SET WITH THE LATEST PIPA READINGS.
053879,000058: 
053880,000059:                                                                                                  #  CDUTRIG1 IS LIKE CDUTRIG EXCEPT THAT IT CAN BE CALLED IN BASIC.
053881,000060: 
053882,000061:                                                                                                  #  CD*TR*GS FINDS CDU VALUES IN CDUSPOT RATHER THAN IN CDUTEMP.  THIS
053883,000062:                                                                                                  #  ALLOWS USERS TO MAKE TRANSFORMATIONS USING ARBITRARY ANGLES, OR REAL
053884,000063:                                                                                                  #  ANGLES IN AN ORDER OTHER THAN X Y Z.  A CALL TO THIS ROUTINE IS
053885,000064:                                                                                                  #  NECESSARY IN PREPARATION FOR A CALL TO AX*SR*T IN EITHER OF ITS TWO
053886,000065:                                                                                                  #  MODES (SMNB OR NBSM).  SINCE AX*SR*T EXPECTS TO FIND THE SINES AND
053887,000066:                                                                                                  #  COSINES IN THE ORDER Y Z X THE ANGLES MUST HAVE BEEN PLACED IN CDUSPOT
053888,000067:                                                                                                  #  IN THIS ORDER.  CD*TR*GS NEED NOT BE REPEATED WHEN AX*SR*T IS CALLED
053889,000068:                                                                                                  #  MORE THAN ONCE, PROVIDED THE ANGLES HAVE NOT CHANGED.  NOTE THAT SINCE
053890,000069:                                                                                                  #  IT CLOBBERS BUF2 (IN THE SINE AND COSINE ROUTINES) CD*TR*GS CANNOT BE
053891,000070:                                                                                                  #  CALLED USING BANKCALL.  SORRY.
053892,000071: 
053893,000072:                                                                                                  #  CD*TR*G IS LIKE CD*TR*GS EXCEPT THAT IT CAN BE CALLED IN
053894,000073:                                                                                                  #  INTERPRETIVE.
053895,000074: 
053896,000075: 23,3537           77776        CDUTRIG            EXIT                                           
053897,000076: 23,3540           03547                           TC       CDUTRIGS                              
053898,000077: 23,3541           06037                           TC       INTPRET                               
053899,000078: 23,3542           77616                           RVQ                                            
053900,000079: 
053901,000080: 23,3543           77776        CD*TR*G            EXIT                                           
053902,000081: 23,3544           03555                           TC       CD*TR*GS                              
053903,000082: 23,3545           06037                           TC       INTPRET                               
053904,000083: 23,3546           77616                           RVQ                                            
053905,000084: 
053906,000085: 23,3547           30032        CDUTRIGS           CA       CDUX                                  
053907,000086: 23,3550           54772                           TS       CDUSPOT    +4                         
053908,000087: 23,3551           30033                           CA       CDUY                                  
053909,000088: 23,3552           54766                           TS       CDUSPOT                               

Page 1260

053911,000090: 23,3553           30034                           CA       CDUZ                                  
053912,000091: 23,3554           54770                           TS       CDUSPOT    +2                         
053913,000092: 
053914,000093: 23,3555           00006        CD*TR*GS           EXTEND                                         
053915,000094: 23,3556           22142                           QXCH     TEM2                                  
053916,000095: 23,3557           34751                           CAF      FOUR                                  
053917,000096: 23,3560           76242        TR*GL**P           MASK     SIX                                   #  MAKE IT EVEN AND SMALLER
053918,000097: 23,3561           54143                           TS       TEM3                                  
053919,000098: 23,3562           50143                           INDEX    TEM3                                  
053920,000099: 23,3563           30766                           CA       CDUSPOT                               
053921,000100: 23,3564           52155                           DXCH     MPAC                                  #  STORING 2'S COMP ANGLE, LOADING MPAC
053922,000101: 23,3565           52127                           DXCH     VBUF       +4                         #  STORING MPAC FOR LATER RESTORATION
053923,000102: 23,3566           04713                           TC       USPRCADR                              
053924,000103: 23,3567           21576                           CADR     CDULOGIC                              
053925,000104: 23,3570           00006                           EXTEND                                         
053926,000105: 23,3571           30155                           DCA      MPAC                                  
053927,000106: 23,3572           50143                           INDEX    TEM3                                  
053928,000107: 23,3573           52767                           DXCH     CDUSPOT                               #  STORING 1'S COMPLEMENT ANGLE
053929,000108: 23,3574           04713                           TC       USPRCADR                              
053930,000109: 23,3575           01517                           CADR     COSINE                                
053931,000110: 23,3576           52155                           DXCH     MPAC                                  
053932,000111: 23,3577           50143                           INDEX    TEM3                                  
053933,000112: 23,3600           52745                           DXCH     COSCDU                                #  STORING COSINE
053934,000113: 23,3601           00006                           EXTEND                                         
053935,000114: 23,3602           50143                           INDEX    TEM3                                  
053936,000115: 23,3603           30767                           DCA      CDUSPOT                               #  LOADING 1'S COMPLEMENT ANGLE
053937,000116: 23,3604           04713                           TC       USPRCADR                              
053938,000117: 23,3605           01531                           CADR     SINE       +1                         #  SINE +1 EXPECTS ARGUMENT IN A AND L
053939,000118: 23,3606           52127                           DXCH     VBUF       +4                         #  BRINGING UP PRIOR MPAC TO BE RESTORED
053940,000119: 23,3607           52155                           DXCH     MPAC                                  
053941,000120: 23,3610           50143                           INDEX    TEM3                                  
053942,000121: 23,3611           52737                           DXCH     SINCDU                                
053943,000122: 23,3612           10143                           CCS      TEM3                                  
053944,000123: 23,3613           13560                           TCF      TR*GL**P                              
053945,000124: 23,3614           00142                           TC       TEM2                                  

Page 1261

053947,000126:                                                                                                  #  ****************************************************************************************************************
053948,000127:                                                                                                  #  QUICTRIG, INTENDED FOR GUIDANCE CYCLE USE WHERE TIME IS CRITICAL, IS A MUCH FASTER VERSION OF CD*TR*GS.
053949,000128:                                                                                                  #  QUICTRIG COMPUTES AND STORES THE SINES AND COSINES OF THE 2'S COMPLEMENT ANGLES AT CDUSPOT, CDUSPOT +2,
053950,000129:                                                                                                  #  AND CDUSPOT +4.  UNLIKE CD*TR*GS, QUICTRIG DOES NOT LEAVE THE 1'S COMPLEMENT VERSIONS OF THE ANGLES IN
053951,000130:                                                                                                  #  CDUSPOT.  QUICTRIG'S EXECUTION TIME IS 4.1 MS;  THIS IS 10 TIMES AS FAST AS CD*TR*GS.  QUICTRIG MAY BE
053952,000131:                                                                                                  #  CALLED FROM INTERPRETIVE AS AN RTB OP-CODE, OR FROM BASIC VIA BANKCALL OR IBNKCALL.
053953,000132: 
053954,000133: 23,3615           00004        QUICTRIG           INHINT                                         #  INHINT SINCE DAP USES THE SAME TEMPS
053955,000134: 23,3616           00006                           EXTEND                                         
053956,000135: 23,3617           22061                           QXCH     ITEMP1                                
053957,000136: 23,3620           34751                           CAF      FOUR                                  
053958,000137: 23,3621           76242                 +4        MASK     SIX                                   
053959,000138: 23,3622           54062                           TS       ITEMP2                                
053960,000139: 23,3623           50062                           INDEX    ITEMP2                                
053961,000140: 23,3624           30766                           CA       CDUSPOT                               
053962,000141: 23,3625           05033                           TC       SPSIN                                 
053963,000142: 23,3626           00006                           EXTEND                                         
053964,000143: 23,3627           74736                           MP       BIT14                                 #  SCALE DOWN TO MATCH INTERPRETER OUTPUTS
053965,000144: 23,3630           50062                           INDEX    ITEMP2                                
053966,000145: 23,3631           52737                           DXCH     SINCDU                                
053967,000146: 23,3632           50062                           INDEX    ITEMP2                                
053968,000147: 23,3633           30766                           CA       CDUSPOT                               
053969,000148: 23,3634           05032                           TC       SPCOS                                 
053970,000149: 23,3635           00006                           EXTEND                                         
053971,000150: 23,3636           74736                           MP       BIT14                                 
053972,000151: 23,3637           50062                           INDEX    ITEMP2                                
053973,000152: 23,3640           52745                           DXCH     COSCDU                                
053974,000153: 23,3641           10062                           CCS      ITEMP2                                
053975,000154: 23,3642           13621                           TCF      QUICTRIG   +4                         
053976,000155: 23,3643           30061                           CA       ITEMP1                                
053977,000156: 23,3644           00003                           RELINT                                         
053978,000157: 23,3645           00000                           TC       A                                     
053979,000158: 

Page 1262

053981,000160:                                                                                                  #  ****************************************************************************************************************
053982,000161:                                                                                                  #  THESE INTERFACE ROUTINES MAKE IT POSSIBLE TO CALL AX*SR*T, ETC., IN
053983,000162:                                                                                                  #  INTERPRETIVE.  LATER, WHERE POSSIBLE, THEY WILL BE ELIMINATED.
053984,000163: 
053985,000164:                                                                                                  #  THESE INTERFACE ROUTINES ARE PERMANENT.  ALL RESTORE USER'S EBANK
053986,000165:                                                                                                  #  SETTING. ALL ARE STRICT INTERPRETIVE SUBROUTINES, CALLED USING "CALL",
053987,000166:                                                                                                  #  RETURNING VIA QPRET.  ALL EXPECT AND RETURN THE VECTOR TO BE TRANSFOR-
053988,000167:                                                                                                  #  MED INTERPRETER-STYLE IN MPAC; COMPONENTS AT MPAC, MPAC +3, AND MPAC +5.
053989,000168: 
053990,000169:                                                                                                  #  TRG*SMNB AND TRG*NBSM BOTH EXPECT TO SEE THE 2'S COMPLEMENT ANGLES
053991,000170:                                                                                                  #  AT CDUSPOT (ORDER Y Z X, AT CDUSPOT, CDUSPOT +2, AND CDUSPOT +4; ODD
053992,000171:                                                                                                  #  LOCATIONS NEED NOT BE ZEROED).  TRG*NBSM DOES THE NB TO SM TRANSFOR-
053993,000172:                                                                                                  #  MATION;  TRG*SMNB, VICE VERSA.
053994,000173: 
053995,000174:                                                                                                  #  CDU*NBSM DOES ITS TRANSFORMATION USING THE PRESENT CONTENTS OF
053996,000175:                                                                                                  #  THE CDU COUNTERS.  OTHERWISE IT IS LIKE TRG*NBSM.
053997,000176: 
053998,000177:                                                                                                  #  CDU*SMNB IS THE COMPLEMENT OF CDU*NBSM.
053999,000178: 
054000,000179: 23,3646           77776        CDU*SMNB           EXIT                                           
054001,000180: 23,3647           03547                           TC       CDUTRIGS                              
054002,000181: 23,3650           13653                           TCF      C*MM*N1                               
054003,000182: 
054004,000183: 23,3651           77776        TRG*SMNB           EXIT                                           
054005,000184: 23,3652           03555                           TC       CD*TR*GS                              
054006,000185: 23,3653           07532        C*MM*N1            TC       MPACVBUF                              #  AX*SR*T EXPECTS VECTOR IN VBUF
054007,000186: 23,3654           46245                           CS       THREE                                 #  SIGNAL FOR SM TO NB TRANSFORMATION
054008,000187: 23,3655           03675        C*MM*N2            TC       AX*SR*T                               
054009,000188: 23,3656           06037                           TC       INTPRET                               
054010,000189: 23,3657           43575                           VLOAD    RVQ                                   
054011,000190: 23,3660           00123                                    VBUF                                  
054012,000191: 
054013,000192: 23,3661           77776        CDU*NBSM           EXIT                                           
054014,000193: 23,3662           03547                           TC       CDUTRIGS                              
054015,000194: 23,3663           13666                           TCF      C*MM*N3                               
054016,000195: 
054017,000196: 23,3664           77776        TRG*NBSM           EXIT                                           
054018,000197: 23,3665           03555                           TC       CD*TR*GS                              
054019,000198: 23,3666           07532        C*MM*N3            TC       MPACVBUF                              #  FOR AX*SR*T
054020,000199: 23,3667           36245                           CA       THREE                                 #  SIGNAL FOR NB TO SM TRANSFORMATION
054021,000200: 23,3670           13655                           TCF      C*MM*N2                               
054022,000201: 
054023,000202:                                                                                                  #  *NBSM* AND *SMNB* EXPECT TO SEE THE SINES AND COSINES (AT SINCDU
054024,000203:                                                                                                  #  AND COSCDU) RATHER THAN THE ANGLES THEMSELVES.  OTHERWISE THEY ARE
054025,000204:                                                                                                  #  LIKE TRG*NBSM AND TRG*SMNB.
054026,000205: 
054027,000206:                                                                                                  #  NOTE THAT JUST AS CD*TR*GS NEED BE CALLED ONLY ONCE FOR EACH SERIES
054028,000207:                                                                                                  #  OF TRANSFORMATIONS USING THE SAME ANGLES, SO TOO ONLY ONE OF TRG*NBSM

Page 1263

054030,000209:                                                                                                  #  AND TRG*SMNB NEED BE CALLED FOR EACH SERIES.  FOR SUBSEQUENT TRANSFOR-
054031,000210:                                                                                                  #  MATIONS USE *NBSM* AND *SMNB*.
054032,000211: 
054033,000212: 23,3671           77776        *SMNB*             EXIT                                           
054034,000213: 23,3672           13653                           TCF      C*MM*N1                               
054035,000214: 
054036,000215: 23,3673           77776        *NBSM*             EXIT                                           
054037,000216: 23,3674           13666                           TCF      C*MM*N3                               
054038,000217: 
054039,000218:                                                                                                  #  AX*SR*T COMBINES THE OLD SMNB AND NBSM.  FOR THE NB TO SM
054040,000219:                                                                                                  #  TRANSFORMATION, ENTER WITH +3 IN A.  FOR SM TO NB, ENTER WITH -3.
054041,000220:                                                                                                  #  THE VECTOR TO BE TRANSFORMED ARRIVES, AND IS RETURNED, IN VBUF.
054042,000221:                                                                                                  #  AX*SR*T EXPECTS TO FIND THE SINES AND COSINES OF THE ANGLES OF ROTATION
054043,000222:                                                                                                  #  AT SINCDU AND COSCDU, IN THE ORDER Y Z X.  A CALL TO CD*TR*GS, WITH
054044,000223:                                                                                                  #  THE 2'S COMPLEMENT ANGLES (ORDER Y Z X) AT CDUSPOT, WILL TAKE CARE OF
054045,000224:                                                                                                  #  THIS.  HERE IS A SAMPLE CALLING SEQUENCE:-
054046,000225:                                                                                                  #                TC      CDUTRIGS
054047,000226:                                                                                                  #                CS      THREE           ("CA THREE" FOR NBSM)
054048,000227:                                                                                                  #                TC      AX*SR*T
054049,000228:                                                                                                  #  THE CALL TO CD*TR*GS NEED NOT BE REPEATED, WHEN AX*SR*T IS CALLED MORE
054050,000229:                                                                                                  #  THAN ONCE, UNLESS THE ANGLES HAVE CHANGED.
054051,000230: 
054052,000231:                                                                                                  #  AX*SR*T IS GUARANTEED SAFE ONLY FOR VECTORS OF MAGNITUDE LESS THAN
054053,000232:                                                                                                  #  UNITY.  A LOOK AT THE CASE IN WHICH A VECTOR OF GREATER MAGNITUDE
054054,000233:                                                                                                  #  HAPPENS TO LIE ALONG AN AXIS OF THE SYSTEM TO WHICH IT IS TO BE TRANS-
054055,000234:                                                                                                  #  FORMED CONVINCES ONE THAT THIS IS A RESTRICTION WHICH MUST BE ACCEPTED.
054056,000235: 
054057,000236: 23,3675           54142        AX*SR*T            TS       DEXDEX                                #  WHERE IT BECOMES THE INDEX OF INDEXES
054058,000237: 23,3676           00006                           EXTEND                                         
054059,000238: 23,3677           22145                           QXCH     RTNSAVER                              
054060,000239: 
054061,000240: 23,3700           10142        R*TL**P            CCS      DEXDEX                                #                +3 --> 0        -3 --> 2
054062,000241: 23,3701           40142                           CS       DEXDEX                                #  THUS:         +2 --> 1        -2 --> 1
054063,000242: 23,3702           66245                           AD       THREE                                 #                +1 --> 2        -1 --> 0
054064,000243: 23,3703           00006                           EXTEND                                         
054065,000244: 23,3704           50000                           INDEX    A                                     
054066,000245: 23,3705           33764                           DCA      INDEXI                                
054067,000246: 23,3706           52144                           DXCH     DEXI                                  
054068,000247: 
054069,000248: 23,3707           34753                           CA       ONE                                   
054070,000249: 23,3710           54130                           TS       BUF                                   
054071,000250: 23,3711           00006                           EXTEND                                         
054072,000251: 23,3712           50143                           INDEX    DEX1                                  
054073,000252: 23,3713           40123                           DCS      VBUF                                  
054074,000253: 23,3714           13716                           TCF      LOOP1                                 #  REALLY BE A SUBTRACT, AND VICE VERSA
054075,000254: 
054076,000255: 23,3715           52131        LOOP2              DXCH     BUF                                   #  LOADING VECTOR COMPONENT, STORING INDEX

Page 1264

054078,000257: 23,3716           52155        LOOP1              DXCH     MPAC                                  
054079,000258: 23,3717           33762                           CA       SINESLOC                              
054080,000259: 23,3720           60143                           AD       DEX1                                  
054081,000260: 23,3721           54116                           TS       ADDRWD                                
054082,000261: 
054083,000262: 23,3722           07107                           TC       DMPSUB                                #  MULTIPLY BY SIN(CDUANGLE)
054084,000263: 23,3723           10142                           CCS      DEXDEX                                
054085,000264: 23,3724           52155                           DXCH     MPAC                                  #  NBSM CASE
054086,000265: 23,3725           13730                           TCF      +3                                    
054087,000266: 23,3726           00006                           EXTEND                                         #  SMNB CASE
054088,000267: 23,3727           40155                           DCS      MPAC                                  
054089,000268: 23,3730           52160                           DXCH     TERM1TMP                              
054090,000269: 
054091,000270: 23,3731           36242                           CA       SIX                                   #  SINCDU AND COSCDU (EACH 6 WORDS) MUST
054092,000271: 23,3732           26116                           ADS      ADDRWD                                #        BE CONSECUTIVE AND IN THAT ORDER
054093,000272: 
054094,000273: 23,3733           00006                           EXTEND                                         
054095,000274: 23,3734           50130                           INDEX    BUF                                   
054096,000275: 23,3735           50143                           INDEX    DEX1                                  
054097,000276: 23,3736           30123                           DCA      VBUF                                  
054098,000277: 23,3737           52155                           DXCH     MPAC                                  
054099,000278: 23,3740           07107                           TC       DMPSUB                                #  MULTIPLY BY COS(CDUANGLE)
054100,000279: 23,3741           52155                           DXCH     MPAC                                  
054101,000280: 23,3742           20160                           DAS      TERM1TMP                              
054102,000281: 23,3743           52160                           DXCH     TERM1TMP                              
054103,000282: 23,3744           20001                           DDOUBL                                         
054104,000283: 23,3745           50130                           INDEX    BUF                                   
054105,000284: 23,3746           50143                           INDEX    DEX1                                  
054106,000285: 23,3747           52123                           DXCH     VBUF                                  
054107,000286: 23,3750           52131                           DXCH     BUF                                   #  LOADING INDEX, STORING VECTOR COMPONENT
054108,000287: 
054109,000288: 23,3751           10000                           CCS      A                                     #  'CAUSE THAT'S WHERE THE INDEX NOW IS
054110,000289: 23,3752           13715                           TCF      LOOP2                                 
054111,000290: 
054112,000291: 23,3753           00006                           EXTEND                                         
054113,000292: 23,3754           26142                           DIM      DEXDEX                                #  DECREMENT MAGNITUDE PRESERVING SIGN
054114,000293: 
054115,000294: 23,3755           10142        TSTPOINT           CCS      DEXDEX                                #  ONLY THE BRANCHING FUNCTION IS USED
054116,000295: 23,3756           13700                           TCF      R*TL**P                               
054117,000296: 23,3757           00145                           TC       RTNSAVER                              
054118,000297: 23,3760           13700                           TCF      R*TL**P                               
054119,000298: 23,3761           00145                           TC       RTNSAVER                              
054120,000299: 
054121,000300: 23,3762           00736        SINESLOC           ADRES    SINCDU                                #  FOR USE IN SETTING ADDRWD
054122,000301: 
054123,000302: 23,3763           00004        INDEXI             DEC      4          B-14                       #  **********   DON'T   **********
054124,000303: 23,3764           00002                           DEC      2          B-14                       #  **********   TOUCH   **********
054125,000304: 23,3765           00000                           DEC      0          B-14                       #  **********   THESE   **********

Page 1265

054127,000306: 23,3766           00004                           DEC      4          B-14                       #  ********** CONSTANTS **********
054128,000307: 
054129,000308:                                                                                                  #  ****************************************************************************************************************
054130,000309: 
054131,000310: 10,2030                                           BANK     10                                    
054132,000311: 10,2000                                           SETLOC   FLESHLOC                              
054133,000312: 10,2000                                           BANK                                           
054134,000313: 10,2030                                           COUNT*   $$/POWFL                              
054135,000314: 
054136,000315:                                                                                                  #  ROUTINE FLESHPOT COMPUTES THE BODY-STABLE MEMBER TRANSFORMATION MATRIX (COMMONLY CALLED XNB) AND STORES
054137,000316:                                                                                                  #  IT IN THE LOCATIONS SPECIFIED BY THE ECADR ENTERING IN A.
054138,000317: 
054139,000318: 10,2030           77776        CALCSMSC           EXIT                                           
054140,000319: 10,2031           04616                           TC       BANKCALL                              
054141,000320: 10,2032           20036                           CADR     FLESHPOT   -1                         
054142,000321: 10,2033           06037                           TC       INTPRET                               
054143,000322: 10,2034           77616                           RVQ                                            
054144,000323: 
054145,000324: 10,2035           02664        XNBECADR           ECADR    XNB                                   
054146,000325: 
054147,000326: 10,2036           32035                 -1        CAF      XNBECADR                              
054148,000327: 
054149,000328: 10,2037           54142        FLESHPOT           TS       TEM2                                  
054150,000329: 10,2040           56003                           XCH      EBANK                                 
054151,000330: 10,2041           56142                           XCH      TEM2                                  
054152,000331: 10,2042           74357                           MASK     LOW8                                  
054153,000332: 10,2043           65007                           AD       OCT1400                               
054154,000333: 10,2044           54141                           TS       TEM1                                  
054155,000334: 
054156,000335: 10,2045           00006                           EXTEND                                         
054157,000336: 10,2046           30745                           DCA      COSCDUY                               
054158,000337: 10,2047           52155                           DXCH     MPAC                                  
054159,000338: 10,2050           07103                           TC       DMP                                   
054160,000339: 10,2051           00746                           ADRES    COSCDUZ                               
054161,000340: 10,2052           52155                           DXCH     MPAC                                  
054162,000341: 10,2053           20001                           DDOUBL                                         
054163,000342: 10,2054           50141                           INDEX    TEM1                                  
054164,000343: 10,2055           52001                           DXCH     0                                     #  = COSY COSZ
054165,000344: 
054166,000345: 10,2056           00006                           EXTEND                                         
054167,000346: 10,2057           30741                           DCA      SINCDUZ                               
054168,000347: 10,2060           50141                           INDEX    TEM1                                  
054169,000348: 10,2061           52003                           DXCH     2                                     #  = SINZ
054170,000349: 
054171,000350: 10,2062           00006                           EXTEND                                         
054172,000351: 10,2063           40737                           DCS      SINCDUY                               
054173,000352: 10,2064           52155                           DXCH     MPAC                                  
054174,000353: 10,2065           07107                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUZ

Page 1266

054176,000355: 10,2066           52155                           DXCH     MPAC                                  
054177,000356: 10,2067           20001                           DDOUBL                                         
054178,000357: 10,2070           50141                           INDEX    TEM1                                  
054179,000358: 10,2071           52005                           DXCH     4                                     #  = - SINY COSZ
054180,000359: 
054181,000360: 10,2072           00006                           EXTEND                                         
054182,000361: 10,2073           40743                           DCS      SINCDUX                               
054183,000362: 10,2074           52155                           DXCH     MPAC                                  
054184,000363: 10,2075           07107                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUZ STILL
054185,000364: 10,2076           52155                           DXCH     MPAC                                  
054186,000365: 10,2077           20001                           DDOUBL                                         
054187,000366: 10,2100           52160                           DXCH     MPAC       +3                         
054188,000367: 
054189,000368: 10,2101           00006                           EXTEND                                         
054190,000369: 10,2102           40743                           DCS      SINCDUX                               
054191,000370: 10,2103           52155                           DXCH     MPAC                                  
054192,000371: 10,2104           07103                           TC       DMP                                   
054193,000372: 10,2105           00740                           ADRES    SINCDUZ                               
054194,000373: 10,2106           00006                           EXTEND                                         
054195,000374: 10,2107           40155                           DCS      MPAC                                  
054196,000375: 10,2110           52162                           DXCH     MPAC       +5                         
054197,000376: 10,2111           07103                           TC       DMP                                   
054198,000377: 10,2112           00736                           ADRES    SINCDUY                               
054199,000378: 10,2113           52155                           DXCH     MPAC                                  
054200,000379: 10,2114           20001                           DDOUBL                                         
054201,000380: 10,2115           20001                           DDOUBL                                         
054202,000381: 10,2116           52162                           DXCH     MPAC       +5                         
054203,000382: 
054204,000383: 10,2117           52155                           DXCH     MPAC                                  
054205,000384: 10,2120           07103                           TC       DMP                                   
054206,000385: 10,2121           00744                           ADRES    COSCDUY                               
054207,000386: 10,2122           52155                           DXCH     MPAC                                  
054208,000387: 10,2123           20001                           DDOUBL                                         
054209,000388: 10,2124           20001                           DDOUBL                                         
054210,000389: 10,2125           52131                           DXCH     BUF                                   
054211,000390: 
054212,000391: 10,2126           00006                           EXTEND                                         
054213,000392: 10,2127           30745                           DCA      COSCDUY                               
054214,000393: 10,2130           52155                           DXCH     MPAC                                  
054215,000394: 10,2131           07103                           TC       DMP                                   
054216,000395: 10,2132           00750                           ADRES    COSCDUX                               
054217,000396: 10,2133           52155                           DXCH     MPAC                                  
054218,000397: 10,2134           20001                           DDOUBL                                         
054219,000398: 10,2135           20162                           DAS      MPAC       +5                         
054220,000399: 
054221,000400: 10,2136           00006                           EXTEND                                         
054222,000401: 10,2137           30737                           DCA      SINCDUY                               
054223,000402: 10,2140           52155                           DXCH     MPAC                                  
054224,000403: 10,2141           07107                           TC       DMPSUB                                #  ADDRWD SET TO COSCDUX
054225,000404: 10,2142           52155                           DXCH     MPAC                                  
054226,000405: 

Page 1267

054228,000407: 10,2143           20001                           DDOUBL                                         
054229,000408: 10,2144           20131                           DAS      BUF                                   
054230,000409: 
054231,000410: 10,2145           52131                           DXCH     BUF                                   
054232,000411: 10,2146           52155                           DXCH     MPAC                                  
054233,000412: 
054234,000413: 10,2147           00006                           EXTEND                                         
054235,000414: 10,2150           30155                           DCA      MPAC                                  
054236,000415: 10,2151           50141                           INDEX    TEM1                                  
054237,000416: 10,2152           52015                           DXCH     14                                    #  = SINY COSX + SINX SINZ COSY
054238,000417: 
054239,000418: 10,2153           00006                           EXTEND                                         
054240,000419: 10,2154           30160                           DCA      MPAC       +3                         
054241,000420: 10,2155           50141                           INDEX    TEM1                                  
054242,000421: 10,2156           52017                           DXCH     16                                    #  = - SINX COSZ
054243,000422: 
054244,000423: 10,2157           00006                           EXTEND                                         
054245,000424: 10,2160           30162                           DCA      MPAC       +5                         
054246,000425: 10,2161           50141                           INDEX    TEM1                                  
054247,000426: 10,2162           52021                           DXCH     20                                    #  = COSX COSY - SINX SINY SINZ
054248,000427: 
054249,000428: 10,2163           30141                           CA       TEM1                                  
054250,000429: 10,2164           54116                           TS       ADDRWD                                
054251,000430: 10,2165           00006                           EXTEND                                         
054252,000431: 10,2166           30006                           DCA      Z                                     
054253,000432: 10,2167           64751                           AD       FOUR                                  
054254,000433: 10,2170           52165                           DXCH     LOC                                   
054255,000434: 10,2171           34744                           CAF      BIT8                                  
054256,000435: 10,2172           54023                           TS       EDOP                                  
054257,000436: 10,2173           17460                           TCF      VXV                                   
054258,000437: 10,2174           52155                           DXCH     MPAC                                  
054259,000438: 10,2175           20001                           DDOUBL                                         
054260,000439: 10,2176           50141                           INDEX    TEM1                                  
054261,000440: 10,2177           52007                           DXCH     6                                     
054262,000441: 
054263,000442: 10,2200           52160                           DXCH     MPAC       +3                         
054264,000443: 10,2201           20001                           DDOUBL                                         
054265,000444: 10,2202           50141                           INDEX    TEM1                                  
054266,000445: 10,2203           52011                           DXCH     10                                    
054267,000446: 
054268,000447: 10,2204           52162                           DXCH     MPAC       +5                         
054269,000448: 10,2205           20001                           DDOUBL                                         
054270,000449: 10,2206           50141                           INDEX    TEM1                                  
054271,000450: 10,2207           52013                           DXCH     12                                    
054272,000451: 
054273,000452: 10,2210           30142                           CA       TEM2                                  
054274,000453: 10,2211           54003                           TS       EBANK                                 
054275,000454: 10,2212           14631                           TCF      SWRETURN                              
054276,000455: 

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