https://github.com/virtualagc/virtualagc
Revision 3577d0b1de1ac147c1710524517c563b2bfe231c authored by Ronald Burkey on 30 May 2021, 19:14:00 UTC, committed by GitHub on 30 May 2021, 19:14:00 UTC
Issue 1143: Fix various symbol name and other minor typos
Tip revision: 3577d0b1de1ac147c1710524517c563b2bfe231c authored by Ronald Burkey on 30 May 2021, 19:14:00 UTC
Merge pull request #1147 from smithery1/Issue/1143
Merge pull request #1147 from smithery1/Issue/1143
Tip revision: 3577d0b
R31.agc
### FILE="Main.annotation"
## Copyright: Public domain.
## Filename: R31.agc
## Purpose: The main source file for Luminary revision 069.
## It is part of the source code for the original release
## of the flight software for the Lunar Module's (LM) Apollo
## Guidance Computer (AGC) for Apollo 10. The actual flown
## version was Luminary 69 revision 2, which included a
## newer lunar gravity model and only affected module 2.
## This file is intended to be a faithful transcription, except
## that the code format has been changed to conform to the
## requirements of the yaYUL assembler rather than the
## original YUL assembler.
## Reference: pp. 712-716
## Assembler: yaYUL
## Contact: Ron Burkey <info@sandroid.org>.
## Website: www.ibiblio.org/apollo/index.html
## Mod history: 2016-12-13 MAS Created from Luminary 99.
## 2016-12-14 MAS Updated from comment-proofed Luminary 99 version.
## 2016-12-15 RRB Updated for Luminary 69.
## 2017-01-20 HG add label V16N54
## fix label REDOEXPT -> REDOEXTP
## GETRVN -> GETRVN2
## fix operand RRONE -> RONE
## REFSMAT -> REFSMMAT
## RHTETA -> RTHETA
## EDNEXT -> ENDEXT
## 2017-01-22 HG Add missing segemnt of interpretive statements
## Fix some comments, remove tabs
## 2017-01-28 RSB Proofed comment text using octopus/prooferComments
## and fixed errors found.
## 2021-05-30 ABS Aligned IAW to field boundary.
## Page 712
BANK 34
SETLOC R31
BANK
COUNT* $$/R31
R31CALL CAF PRIO3
TC FINDVAC
EBANK= SUBEXIT
2CADR V83CALL
DSPDELAY TC FIXDELAY
DEC 100
CA EXTVBACT
MASK BIT12
EXTEND
BZF DSPDELAY
CAF PRIO5
TC NOVAC
EBANK= TSTRT
2CADR DISPN5X
TCF TASKOVER
DISPN5X CAF V16N54
TC BANKCALL
CADR GOMARKF
TC B5OFF
TC B5OFF
TCF DISPN5X
V83 TC INTPRET
CALL
REDOEXTP
GOTO
COMPDISP
V83CALL TC INTPRET
CALL
STATEXTP # EXTRAPOLATE STATE VECTORS
COMPDISP VLOAD VSU
RATT
RONE
PUSH ABVAL # RATT-RONE TO 0D PD = 6
STORE RANGE # METERS B-29
NORM VLOAD
X1 # RATT-RONE PD = 0
VSL* UNIT
0,1
## Page 713
PDVL VSU # UNIT(LOS) TO 0D PD = 6
VATT
VONE
DOT # (VATT-VONE).UNIT(LOS) PD = 0
SL1
STOVL RRATE # RANGE RATE M/CS B-7
RONE
UNIT PDVL # UR TO 0D PD = 6
THISAXIS # UNITX FOR CM, UNTIZ FOR LM
CALL
CDU*NBSM
VXM PUSH # UXORZ TO 6D PD=12D
REFSMMAT
VPROJ VSL2
0D
BVSU UNIT
6D
PDVL VXV # UP/2 TO 12D PD=18D
RONE
VONE
UNIT VXV
RONE
DOT PDVL # SIGN TO 12D, UP/2 TO MPAC PD=18D
12D
VSL1 DOT # UP.UXORZ
6D
SIGN SL1
12D
ACOS
STOVL RTHETA
RONE
DOT BPL
6D
+5
DLOAD BDSU # IF UXORZ.R NEG, RTHETA = 1 - RTHETA
RTHETA
DPPOSMAX
STORE RTHETA # RTHETA BETWEEN 0 AND 1 REV.
EXIT
CAF BIT5 # HAVE WE BEEN ANSWERED
MASK EXTVBACT
EXTEND
BZF ENDEXT # YES, DIE
CS EXTVBACT
MASK BIT12
ADS EXTVBACT
TCF V83
V16N54 VN 1654
## Page 714
# THE STATEXTP SUBROUTINE DOES A PRECISION EXTRAPOLATION OF BOTH VEHICLES
# STATE VECTORS TO PRESENT TIME AND SAVES THEM AS BASE VECTORS.
# IF SERVICER IS OFF ---
# THIS VEHICLES BASE VECTOR IS CONIC EXTRAPOLATED TO
# PRESENT TIME AND SAVED AS RONE, VONE.
# THE OTHER VEHICLES BASE VECTOR IS CONIC EXTRAPOLATED
# TO THE SAME TIME, THE OUTPUT BEING LEFT IN RATT, VATT.
# IF SERVICER IS ON ---
# RONE, VONE ARE SET EQUAL TO RN, VN AND THE OTHER
# VEHICLES STATE VECTOR IS PREC. EXTRAPOLATED TO PIPTIME.
STATEXTP STQ RTB
STATEXIT
LOADTIME
STCALL TDEC1
OTHPREC # GET BASE VECTORS
VLOAD
RATT1
STOVL BASEOTP # OTHER POS.
VATT1
STODL BASEOTV # OTHER VEL.
TAT
STORE BASETIME
STCALL TDEC1
THISPREC
VLOAD
RATT1
STOVL BASETHP # THIS POS.
VATT1
STORE BASETHV # THIS VEL
HAVEBASE BON RTB
AVEGFLAG
GETRVN # IF AVG ON ,GET RN ETC.
LOADTIME
BON GOTO # TEST FOR LM ON SURFACE.
SURFFLAG
R31SURF
+1
STCALL TDEC1 # BEGIN SET UP FOR CONIC EXTRAP. FOR THIS.
INTSTALL
VLOAD CLEAR
BASETHP
MOONFLAG
STOVL RCV
BASETHV
STODL VCV
BASETIME
BOF SET # GET APPROPRIATE MOONFLAG SETTING
MOONTHIS
+2
MOONFLAG
## Page 715
SET
INTYPFLG # CONIC EXTRAP.
STCALL TET
INTEGRVS # INTEGRATION --- AT LAST---
OTHCONIC VLOAD
RATT
STOVL RONE
VATT
STCALL VONE # GET SET FOR CONIC EXTRAP.,OTHER.
INTSTALL
SET DLOAD
INTYPFLG
TAT
OTHINT STORE TDEC1
VLOAD CLEAR
BASEOTP
MOONFLAG
STOVL RCV
BASEOTV
STODL VCV
BASETIME
BOF SET
MOONTHIS
+2
MOONFLAG
STCALL TET
INTEGRVS
GOTO
STATEXIT # THIS VEHICLES POS.,VEL. IN PUSHLIST.
GETRVN VLOAD GOTO
RN
+1
STCALL RONE
+1
VLOAD GOTO
VN
+1
STODL VONE
PIPTIME
GETRVN2 CALL
INTSTALL
CLEAR GOTO
INTYPFLG # PREC EXTRAP FOR OTHER
OTHINT
R31SURF STCALL TDEC1 # LM ON SURFACE.
LEMPREC
GOTO # DO CSM CONIC
OTHCONIC
## Page 716
REDOEXTP STQ GOTO
STATEXIT
HAVEBASE
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