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fixed white space to match exactly
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1 changed files with 52 additions and 52 deletions
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@ -1,6 +1,6 @@
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# Copyright: Public domain.
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# Filename: POWERED_FLIGHT_SUBROUTINES.agc
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# Purpose: Part of the source code for Luminary 1A build 099.
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# Purpose: Part of the source code for Luminary 1A build 099.
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# It is part of the source code for the Lunar Module's (LM)
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# Apollo Guidance Computer (AGC), for Apollo 11.
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# Assembler: yaYUL
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@ -35,33 +35,33 @@
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EBANK= DEXDEX
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COUNT* $$/POWFL
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# CDUTRIG, CDUTRIG1, CDUTRIG2, AND CD*TR*GS ALL COMPUTE THE SINES AND
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# CDUTRIG, CDUTRIG1, CDUTRIG2, AND CD*TR*GS ALL COMPUTE THE SINES AND
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# COSINES OF THREE 2'S COMPLEMENT ANGLES AND PLACE THE RESULT, DOUBLE
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# PRECISION, IN THE SAME ORDER AS THE INPUTS, AT SINCDU AND COSCDU. AN
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# ADDITIONAL OUTPUT IS THE 1'S COMPLEMENT ANGLES AT CDUSPOT. THESE
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# PRECISION, IN THE SAME ORDER AS THE INPUTS, AT SINCDU AND COSCDU. AN
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# ADDITIONAL OUTPUT IS THE 1'S COMPLEMENT ANGLES AT CDUSPOT. THESE
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# ROUTINES GO OUT OF THEIR WAY TO LEAVE THE MPAC AREA AS THEY FIND IT,
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# EXCEPT FOR THE GENERALLY UNIMPORTANT MPAC +2. THEY DIFFER ONLY IN
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# EXCEPT FOR THE GENERALLY UNIMPORTANT MPAC +2. THEY DIFFER ONLY IN
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# WHERE THEY GET THE ANGLES, AND IN METHOD OF CALLING.
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#
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# CDUTRIG (AND CDUTRIG1, WHICH CAN BE CALLED IN BASIC) COMPUTE THE
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# CDUTRIG (AND CDUTRIG1, WHICH CAN BE CALLED IN BASIC) COMPUTE THE
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# SINES AND COSINES FROM THE CURRENT CONTENTS OF THE CDU REGISTERS.
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# THE CONTENTS OF CDUTEMP, ETC., ARE NOT TOUCHED SO THAT THEY MAY
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# CONTINUE TO FORM A CONSISTENT SET WITH THE LATEST PIPA READINGS.
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#
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# CDUTRIG1 IS LIKE CDUTRIG EXCEPT THAT IT CAN BE CALLED IN BASIC.
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# CDUTRIG1 IS LIKE CDUTRIG EXCEPT THAT IT CAN BE CALLED IN BASIC.
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#
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# CD*TR*GS FINDS CDU VALUES IN CDUSPOT RATHER THAN IN CDUTEMP. THIS
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# CD*TR*GS FINDS CDU VALUES IN CDUSPOT RATHER THAN IN CDUTEMP. THIS
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# ALLOWS USERS TO MAKE TRANSFORMATIONS USING ARBITRARY ANGLES, OR REAL
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# ANGLES IN AN ORDER OTHER THAN X Y Z. A CALL TO THIS ROUTINE IS
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# ANGLES IN AN ORDER OTHER THAN X Y Z. A CALL TO THIS ROUTINE IS
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# NECESSARY IN PREPARATION FOR A CALL TO AX*SR*T IN EITHER OF ITS TWO
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# MODES (SMNB OR NBSM). SINCE AX*SR*T EXPECTS TO FIND THE SINES AND
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# MODES (SMNB OR NBSM). SINCE AX*SR*T EXPECTS TO FIND THE SINES AND
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# COSINES IN THE ORDER Y Z X THE ANGLES MUST HAVE BEEN PLACED IN CDUSPOT
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# IN THIS ORDER. CD*TR*GS NEED NOT BE REPEATED WHEN AX*SR*T IS CALLED
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# MORE THAN ONCE, PROVIDED THE ANGLES HAVE NOT CHANGED. NOTE THAT SINCE
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# IN THIS ORDER. CD*TR*GS NEED NOT BE REPEATED WHEN AX*SR*T IS CALLED
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# MORE THAN ONCE, PROVIDED THE ANGLES HAVE NOT CHANGED. NOTE THAT SINCE
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# IT CLOBBERS BUF2 (IN THE SINE AND COSINE ROUTINES) CD*TR*GS CANNOT BE
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# CALLED USING BANKCALL. SORRY.
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# CALLED USING BANKCALL. SORRY.
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#
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# CD*TR*G IS LIKE CD*TR*GS EXCEPT THAT IT CAN BE CALLED IN
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# CD*TR*G IS LIKE CD*TR*GS EXCEPT THAT IT CAN BE CALLED IN
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# INTERPRETIVE.
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CDUTRIG EXIT
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@ -90,7 +90,7 @@ TR*GL**P MASK SIX # MAKE IT EVEN AND SMALLER
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INDEX TEM3
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CA CDUSPOT
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DXCH MPAC # STORING 2'S COMP ANGLE, LOADING MPAC
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DXCH VBUF +4 # STORING MPAC FOR LATER RESTORATION
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DXCH VBUF +4 # STORING MPAC FOR LATER RESTORATION
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TC USPRCADR
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CADR CDULOGIC
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EXTEND
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@ -106,8 +106,8 @@ TR*GL**P MASK SIX # MAKE IT EVEN AND SMALLER
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INDEX TEM3
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DCA CDUSPOT # LOADING 1'S COMPLEMENT ANGLE
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TC USPRCADR
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CADR SINE +1 # SINE +1 EXPECTS ARGUMENT IN A AND L
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DXCH VBUF +4 # BRINGING UP PRIOR MPAC TO BE RESTORED
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CADR SINE +1 # SINE +1 EXPECTS ARGUMENT IN A AND L
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DXCH VBUF +4 # BRINGING UP PRIOR MPAC TO BE RESTORED
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DXCH MPAC
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INDEX TEM3
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DXCH SINCDU
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@ -116,10 +116,10 @@ TR*GL**P MASK SIX # MAKE IT EVEN AND SMALLER
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TC TEM2
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# Page 1261
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# *******************************************************************************************************
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# QUICTRIG, INTENDED FOR GUIDANCE CYCLE USE WHERE TIME IS CRITICAL, IS A MUCH FASTER VERSION OF CD*TR*GS.
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# QUICTRIG, INTENDED FOR GUIDANCE CYCLE USE WHERE TIME IS CRITICAL, IS A MUCH FASTER VERSION OF CD*TR*GS.
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# QUICTRIG COMPUTES AND STORES THE SINES AND COSINES OF THE 2'S COMPLEMENT ANGLES AT CDUSPOT, CDUSPOT +2,
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# AND CDUSPOT +4. UNLIKE CD*TR*GS, QUICTRIG DOES NOT LEAVE THE 1'S COMPLEMENT VERSIONS OF THE ANGLES IN
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# CDUSPOT. QUICTRIG'S EXECUTION TIME IS 4.1 MS; THIS IS 10 TIMES AS FAST AS CD*TR*GS. QUICTRIG MAY BE
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# AND CDUSPOT +4. UNLIKE CD*TR*GS, QUICTRIG DOES NOT LEAVE THE 1'S COMPLEMENT VERSIONS OF THE ANGLES IN
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# CDUSPOT. QUICTRIG'S EXECUTION TIME IS 4.1 MS; THIS IS 10 TIMES AS FAST AS CD*TR*GS. QUICTRIG MAY BE
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# CALLED FROM INTERPRETIVE AS AN RTB OP-CODE, OR FROM BASIC VIA BANKCALL OR IBNKCALL.
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QUICTRIG INHINT # INHINT SINCE DAP USES THE SAME TEMPS
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@ -150,23 +150,23 @@ QUICTRIG INHINT # INHINT SINCE DAP USES THE SAME TEMPS
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# Page 1262
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#****************************************************************************
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# THESE INTERFACE ROUTINES MAKE IT POSSIBLE TO CALL AX*SR*T, ETC., IN
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# INTERPRETIVE. LATER, WHERE POSSIBLE, THEY WILL BE ELIMINATED.
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# THESE INTERFACE ROUTINES MAKE IT POSSIBLE TO CALL AX*SR*T, ETC., IN
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# INTERPRETIVE. LATER, WHERE POSSIBLE, THEY WILL BE ELIMINATED.
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#
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# THESE INTERFACE ROUTINES ARE PERMANENT. ALL RESTORE USER'S EBANK
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# SETTING. ALL ARE STRICT INTERPRETIVE SUBROUTINES, CALLED USING "CALL",
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# RETURNING VIA QPRET. ALL EXPECT AND RETURN THE VECTOR TO BE TRANSFOR-
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# THESE INTERFACE ROUTINES ARE PERMANENT. ALL RESTORE USER'S EBANK
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# SETTING. ALL ARE STRICT INTERPRETIVE SUBROUTINES, CALLED USING "CALL",
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# RETURNING VIA QPRET. ALL EXPECT AND RETURN THE VECTOR TO BE TRANSFOR-
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# MED INTERPRETER-STYLE IN MPAC; COMPONENTS AT MPAC, MPAC +3, AND MPAC +5.
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#
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# TRG*SMNB AND TRG*NBSM BOTH EXPECT TO SEE THE 2'S COMPLEMENT ANGLES
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# TRG*SMNB AND TRG*NBSM BOTH EXPECT TO SEE THE 2'S COMPLEMENT ANGLES
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# AT CDUSPOT (ORDER Y Z X, AT CDUSPOT, CDUSPOT +2, AND CDUSPOT +4; ODD
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# LOCATIONS NEED NOT BE ZEROED). TRG*NBSM DOES THE NB TO SM TRANSFOR-
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# LOCATIONS NEED NOT BE ZEROED). TRG*NBSM DOES THE NB TO SM TRANSFOR-
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# MATION; TRG*SMNB, VICE VERSA.
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#
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# CDU*NBSM DOES ITS TRANSFORMATION USING THE PRESENT CONTENTS OF
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# THE CDU COUNTERS. OTHERWISE IT IS LIKE TRG*NBSM.
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# CDU*NBSM DOES ITS TRANSFORMATION USING THE PRESENT CONTENTS OF
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# THE CDU COUNTERS. OTHERWISE IT IS LIKE TRG*NBSM.
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#
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# CDU*SMNB IS THE COMPLEMENT OF CDU*NBSM.
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# CDU*SMNB IS THE COMPLEMENT OF CDU*NBSM.
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CDU*SMNB EXIT
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TC CDUTRIGS
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@ -191,14 +191,14 @@ C*MM*N3 TC MPACVBUF # FOR AX*SR*T
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CA THREE # SIGNAL FOR NB TO SM TRANSFORMATION
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TCF C*MM*N2
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# *NBSM* AND *SMNB* EXPECT TO SEE THE SINES AND COSINES (AT SINCDU
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# AND COSCDU) RATHER THAN THE ANGLES THEMSELVES. OTHERWISE THEY ARE
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# *NBSM* AND *SMNB* EXPECT TO SEE THE SINES AND COSINES (AT SINCDU
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# AND COSCDU) RATHER THAN THE ANGLES THEMSELVES. OTHERWISE THEY ARE
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# LIKE TRG*NBSM AND TRG*SMNB.
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#
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# NOTE THAT JUST AS CD*TR*GS NEED BE CALLED ONLY ONCE FOR EACH SERIES
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# NOTE THAT JUST AS CD*TR*GS NEED BE CALLED ONLY ONCE FOR EACH SERIES
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# OF TRANSFORMATIONS USING THE SAME ANGLES, SO TOO ONLY ONE OF TRG*NBSM
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# Page 1263
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# AND TRG*SMNB NEED BE CALLED FOR EACH SERIES. FOR SUBSEQUENT TRANFOR-
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# AND TRG*SMNB NEED BE CALLED FOR EACH SERIES. FOR SUBSEQUENT TRANFOR-
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# MATIONS USE *NBSM* AND *SMNB*.
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*SMNB* EXIT
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*NBSM* EXIT
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TCF C*MM*N3
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# AX*SR*T COMBINES THE OLD SMNB AND NBSM. FOR THE NB TO SM
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# TRANSFORMATION, ENTER WITH +3 IN A. FOR SM TO NB, ENTER WITH -3.
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# AX*SR*T COMBINES THE OLD SMNB AND NBSM. FOR THE NB TO SM
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# TRANSFORMATION, ENTER WITH +3 IN A. FOR SM TO NB, ENTER WITH -3.
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# THE VECTOR TO BE TRANSFORMED ARRIVES, AND IS RETURNED, IN VBUF.
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# AX*SR*T EXPECTS TO FIND THE SINES AND COSINES OF THE ANGLES OF ROTATION
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# AT SINCDU AND COSCDU, IN THE ORDER Y Z X. A CALL TO CD*TR*GS, WITH
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# AT SINCDU AND COSCDU, IN THE ORDER Y Z X. A CALL TO CD*TR*GS, WITH
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# THE 2'S COMPLEMENT ANGLES (ORDER Y Z X) AT CDUSPOT, WILL TAKE CARE OF
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# THIS. HERE IS A SAMPLE CALLING SEQUENCE:-
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# THIS. HERE IS A SAMPLE CALLING SEQUENCE:-
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# TC CDUTRIGS
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# CS THREE # ("CA THREE" FOR NBSM)
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# TC AX*SR*T
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# THE CALL TO CD*TR*GS NEED NOT BE REPEATED, WHEN AX*SR*T IS CALLED MORE
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# THAN ONCE, UNLESS THE ANGLES HAVE CHANGED.
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#
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# AX*SR*T IS GUARANTEED SAFE ONLY FOR VECTORS OF MAGNITUDE LESS THAN
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# UNITY. A LOOK AT THE CASE IN WHICH A VECTOR OF GREATER MAGNITUDE
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# AX*SR*T IS GUARANTEED SAFE ONLY FOR VECTORS OF MAGNITUDE LESS THAN
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# UNITY. A LOOK AT THE CASE IN WHICH A VECTOR OF GREATER MAGNITUDE
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# HAPPENS TO LIE ALONG AN AXIS OF THE SYSTEM TO WHICH IT IS TO BE TRANS-
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# FORMED CONVINCES ONE THAT THIS IS A RESTRICTION WHICH MUST BE ACCEPTED.
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EXTEND
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QXCH RTNSAVER
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R*TL**P CCS DEXDEX # +3 --> 0 -3 --> 2
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R*TL**P CCS DEXDEX # +3 --> 0 -3 --> 2
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CS DEXDEX # THUS: +2 --> 1 -2 --> 1
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AD THREE # +1 --> 2 -1 --> 0
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EXTEND
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@ -304,7 +304,7 @@ INDEXI DEC 4 # ********** DON'T ***********
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BANK
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COUNT* $$/POWFL
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# ROUTINE FLESHPOT COMPUTES THE BODY-STABLE MEMBER TRANSFORMATION MATRIX (COMMONLY CALLED XNB) AND STORES
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# ROUTINE FLESHPOT COMPUTES THE BODY-STABLE MEMBER TRANSFORMATION MATRIX (COMMONLY CALLED XNB) AND STORES
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# IT IN THE LOCATIONS SPECIFIED BY THE ECADR ENTERING IN A.
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CALCSMSC EXIT
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@ -364,13 +364,13 @@ FLESHPOT TS TEM2
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ADRES SINCDUZ
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EXTEND
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DCS MPAC
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DXCH MPAC +5
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DXCH MPAC +5
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TC DMP
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ADRES SINCDUY
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DXCH MPAC
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DDOUBL
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DDOUBL
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DXCH MPAC +5
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DXCH MPAC +5
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DXCH MPAC
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TC DMP
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@ -387,7 +387,7 @@ FLESHPOT TS TEM2
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ADRES COSCDUX
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DXCH MPAC
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DDOUBL
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DAS MPAC +5
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DAS MPAC +5
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EXTEND
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DCA SINCDUY
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@ -397,7 +397,7 @@ FLESHPOT TS TEM2
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# Page 1267
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DDOUBL
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DAS BUF
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DAS BUF
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DXCH BUF
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DXCH MPAC
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DXCH 14 # = SINY COSX + SINX SINZ COSY
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EXTEND
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DCA MPAC +3
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DCA MPAC +3
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INDEX TEM1
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DXCH 16 # = - SINX COSZ
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EXTEND
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DCA MPAC +5
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DCA MPAC +5
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INDEX TEM1
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DXCH 20 # = COSX COSY - SINX SINY SINZ
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INDEX TEM1
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DXCH 6
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DXCH MPAC +3
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DXCH MPAC +3
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DDOUBL
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INDEX TEM1
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INDEX TEM1
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DXCH 10
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DXCH MPAC +5
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DXCH MPAC +5
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DDOUBL
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INDEX TEM1
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INDEX TEM1
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DXCH 12
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CA TEM2
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