https://github.com/virtualagc/virtualagc
Tip revision: 4e5d304eb7cd5589b924ffb8b423b6f15511b35d authored by Ron Burkey on 20 October 2018, 17:47:00 UTC
The sample Block I AGC program TRIVIUM, found at the very end of one of
The sample Block I AGC program TRIVIUM, found at the very end of one of
Tip revision: 4e5d304
FRESH_START_AND_RESTART.agc
### FILE="Main.annotation"
## Copyright: Public domain.
## Filename: FRESH_START_AND_RESTART.agc
## Purpose: A section of Sunburst revision 37, or Shepatin revision 0.
## It is part of an early development version of the software
## for Apollo Guidance Computer (AGC) on the unmanned Lunar
## Module (LM) flight Apollo 5. Sunburst 37 was the program
## upon which Don Eyles's offline development program Shepatin
## was based; the listing herein transcribed was actually for
## the equivalent revision 0 of Shepatin.
## 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. 78-89
## Assembler: yaYUL
## Contact: Ron Burkey <info@sandroid.org>.
## Website: www.ibiblio.org/apollo/index.html
## Mod history: 2017-05-24 MAS Created from Sunburst 120.
## 2017-05-29 HG Transcribed
## 2017-06-15 HG Fix operand BIT14 -> BIT4
## Fix operator TC -> TS
## TCF -> TC
## Fix statements CS LMPCMD --> MASK LMPCMD
## MASK BIT15 --> AD BIT15
## ADS LMPCMD --> TS LMPCMD
## Fix value IM30INIR OCT 37000 -> OCT 37400
## 2017-06-21 RSB Various comment fixes found using
## octopus/ProoferComments.
## Page 78
BANK 01
EBANK= LST1
SLAP1 INHINT # FRESH START. COMES HERE FROM PINBALL.
TC STARTSUB # SUBROUTINE DOES MOST OF THE WORK.
STARTSW TCF GOON # PATCH FOR SIMULATIONS
STARTSIM CAF BIT14
TC FINDVAC
EBANK= ITEMP1
2CADR BEGIN206
GOON CAF BIT15 # TURN OFF ALL DSPTAB +11D LAMPS ONLY ON
TS DSPTAB +11D # REQUESTED FRESH START.
CAF ZERO # SAME STORY ON ZEROING FAILREG.
TS REDOCTR
TS FAILREG
TS FAILREG +1
TS FAILREG +2
EXTEND # INITIALIZE SPECIAL ENEMIZE REGISTER
DCA ENJOBCAD
DXCH FLUSHREG # *** REMOVE IF FAKESTRT REMOVED
DOFSTART CS ZERO # MAKE ALL MTIMER/PHASE PAIRS AVAILABLE.
TS MTIMER4
TS MTIMER3
TS MTIMER2
TS MTIMER1
TS MPHASE4
TS MPHASE3
TS MPHASE2
TS MPHASE1
# INITIALIZE SWITCH REGISTERS INCLUDING DAPBOOLS
CS ONE
TS LMPOUTT
CA SEVEN
-6 TS L
INDEX L
CA SWINIT
INDEX L
TS STATE
CCS L
TCF -6
## Page 79
TS CDUX # ZERO CDUS SO MATRIX COMPUTATION IN T4
TS CDUY # WONT OVERFLOW.
TS CDUZ
TS LMPCMD # RESET LMP COMMAND AREA.
TS LMPCMD +1
TS LMPCMD +2
TS LMPCMD +3
TS LMPCMD +4
TS LMPCMD +5
TS LMPCMD +6
TS LMPCMD +7
TS LMPIN
TS LMPOUT
POOH3 CAF ZERO
TS SMODE
TS MODREG
TS AGSWORD # ALLOW AGS INITIALIZATION.
TS PHASE6 # INITIALIZE PHASE TABLES - NO MISSION
TS PHASE1 # PROGRAMS RUNNING.
TS PHASE2
TS PHASE3
TS PHASE4
TS PHASE5
COM
TS -PHASE6
TS -PHASE1
TS -PHASE2
TS -PHASE3
TS -PHASE4
TS -PHASE5
CAF LNORMT4
TS T4LOC
CAF IM30INIF # FRESH START IMU INITIALIZATION.
TS IMODES30
CAF BIT10 # REMOVE IMU FAIL INHIBIT IN 5 SECS.
TC WAITLIST
EBANK= LST1
2CADR IFAILOK
EXTEND # SETTING T5RUPT FOR SETIDLER PROGRAM
DCA SETADR # THE SETIDLER PROGRAM ASSURES 1 SECOND
DXCH T5ADR # DELAY BEFORE THE DAPIDLER BEGINS.
## Page 80
ENDRSTRT CAF BIT6 # IF GIMBAL LOCK LAMP IS STILL ON,
MASK DSPTAB +11D # IMU WAS FOUND IN GIMBAL LOCK IN RESTART
CCS A # AND LEFT IN COARSE ALIGN. IN THIS CASE
CS BIT9 # SET ISS OPERATE BIT IN IMODES30 TO
ADS IMODES30 # OPERATE SO T4 INBIT MONITOR WONT ZERO
RELINT # THE CDUS AS IT DOES IN FRESH START.
TC BANKCALL # DISPLAY MAJOR MODE.
CADR DSPMM
CAF PRIO30 # THIS IS USED ONLY FOR SPECIAL ENEMIZE.
INHINT # $$$ REMOVE IF FULL RESTARTABILITY ***
TC FINDVAC
EBANK= FLUSHREG
2CADR FLUSHLOC
RELINT
TCF DUMMYJOB +2 # DONT ZERO NEWJOB
FLUSHLOC EXTEND # GO TO SPECIAL ENEMA LOC FOR ROM
DCA FLUSHREG
DXCH Z # USUALLY THIS WILL BE AN ENDOFJOB
OCT312 OCT 312
EBANK= LST1
ENJOBCAD 2CADR ENDOFJOB
## Page 81
# COMES HERE FROM LOCATION 4000, GOJAM. RESTART ANY PROGRAMS WHICH MAY HAVE BEEN RUNNING AT THE TIME.
GOPROG TC BANKCALL # * * * SUBJECT TO A HUGE CHANGE * * *
CADR FAKESTRT
INCR REDOCTR
CA ERESTORE
EXTEND
BZF 2STARTSB
CA SKEEP7
MASK HI5
EXTEND # IF SKEEP7 CONTAINS NONSENSE, DO
BZF +2 # A FRESH START. THIS ELIMINATES A CHANCE
TCF SLAP1 # OF POSSIBLE COMPUTER LOCKUP.
EXTEND # RESTORE B(X) AND B(X+1) IF RESTART
DCA SKEEP5 # HAPPENED WHILE SELF-CHECK HAD REPLACED
NDX SKEEP7 # THEM WITH CHECKING WORDS.
DXCH 0000
2STARTSB TC STARTSUB # COMMON INITIALIZATION ROUTINE
CAF 9,6 # LEAVE PROGRAM ALARM AND GIMBAL LOCK
MASK DSPTAB +11D # LAMPS INTACT ON RESTART.
AD BIT15
XCH DSPTAB +11D
MASK BIT6
CCS A # IF GIMBAL LOCK LAMP WAS ON, LEAVE ISS IN
CAF BIT4 # COARSE ALIGN.
EXTEND
WOR 12
# DAP ZEROES GODAPGO TO BYPASS STARTUP OF DAP AFTER JETABORT UNTIL GROUND
EXTEND # SETTING T5RUPT FOR DAPIDLER PROGRAM
DCA IDLEADR
DXCH T5ADR
# RESETS GODAPGO.
CAF PRIO37 # DISPLAY FAILREG AS INDICATION OF RESTART
TC NOVAC # OR TO DISPLAY ABORT CODE AS ABOVE.
EBANK= LST1
2CADR DOALARM
LIGHTSET EXTEND # DONT TRY TO RESTART IF ERROR
READ 15 # AND MARK REJECT BUTTONS DEPRESSED.
AD -ELR
EXTEND
BZF +2
TCF +7
CAF BIT5
## Page 82
EXTEND
RAND 16
AD -MKREJ
EXTEND
BZF DOFSTART
CS T4LOC # SEE IF LMP COMMAND WAS SITTING IN CH 10
AD LLMPRS2 # WHEN RESTART OCCURRED. IF SO, SET BIT 15
EXTEND # BACK TO ZERO SO THE COMMAND WILL BE
BZF LMPRUPT # RESENT.
CCS LMPOUTT # IF NOT, SEE IF UPDATE OF REFERENCE
AD ONE # POINTER (LMPOUT) WAS IN PROCESS. IF SO,
TS LMPOUT # LMPOUTT IS NON-NEGATIVE.
CS ONE # SHOW LMPOUT UPDATED.
TS LMPOUTT
TCF T4LOCRST
LMPRUPT CS BIT15 # CANT USE ADS HERE SINCE CODING MUST BE
INDEX LMPOUT # REPEATABLE (RESTART DURING RESTART, ETC)
MASK LMPCMD
AD BIT15
INDEX LMPOUT
TS LMPCMD
T4LOCRST CAF LNORMT4
TS T4LOC
-1 CAF NUMGRPS # VERIFY PHASE TABLE AGREEMENT.
PCLOOP TS MPAC +5
DOUBLE
EXTEND
INDEX A
DCA -PHASE1 # COMPLEMENT INTO A, DIRECT INTO L.
EXTEND
RXOR L # RESULT MUST BE -0 FOR AGREEMENT.
CCS A
TCF PTBAD # RESTART FAILURE.
TCF PTBAD
TCF PTBAD
CCS MPAC +5 # PROCESS ALL RESTART GROUPS.
TCF PCLOOP
TS MPAC +6 # SET TO +0.
TC NXTRST -1 # * * * BYPASS 77 CHECK FOR NOW
CA -PHASE6 # TEST TO SEE IF IT IS A PLANNED NO RESTAR
AD OCT77 # T RESTART
CCS A
TCF +4 # A NORMAL RESTART
## Page 83
OCT77 OCT 77 # CAN:T GET HERE
TCF +2 # A NORMAL RESTART
TCF +1 # THIS MAY GO TO FORGETIT IF EVER USED
CAF NUMGRPS # SEE IF ANY GROUPS RUNNING.
NXTRST TS MPAC +5
DOUBLE
INDEX A
CCS PHASE1
TCF PACTIVE # PNZ - GROUP ACTIVE.
TCF PINACT # +0 - GROUP NOT RUNNING.
PACTIVE TS MPAC
INCR MPAC # ABS OF PHASE.
INCR MPAC +6 # INDICATE GROUP DEMANDS PRESENT.
CA RACTCADR # GO TO RESTARTS AND PROCESS PHASE INFO.
TC SWCALL # MUST RETURN TO SWRETURN.
PINACT CCS MPAC +5 # PROCESS ALL RESTART GROUPS.
TCF NXTRST
TSTMPAC6 CCS MPAC +6 # IF NO GROUPS ACTIVE THIS REQUEST, DO A
TCF DORSTART
TCF DOFSTART # FRESH START
PTBAD CAF OCT1107 # SET ADDITIONAL FAILURE TO SHOW PHASE
TS SFAIL # TABLE DISAGREEMENT (WILL BE DISPLAYED
TCF DOFSTART # IN R2).
RACTCADR CADR RESTARTS
OCT1107 OCT 1107 # ADDITIONAL ALARM CODE.
DORSTART CAF IFAILINH # LEAVE IMU FAILURE INHIBITS INTACT ON
MASK IMODES30 # RESTART, RESETTING ALL FAILURE CODES.
AD IM30INIR
TS IMODES30
TCF ENDRSTRT
## Page 84
# INITIALIZATION COMMON TO BOTH FRESH START AND RESTART.
EBANK= DNTMGOTO # DO PORTION OF FRESH START NOT DONE
STARTSUB CAF LDNTMGO # BY POO.
TS EBANK # SET UP TM PROGRAM.
CAF LDNPHAS1
TS DNTMGOTO
STARTSB2 XCH Q # ENTRY FROM POO.
TS BUF # EXEC TEMPS ARE AVAILABLE TO US.
CAF ZERO # ZERO OUTBITS WITHIN 3MS OF RESTART.
EXTEND
WRITE 12
EXTEND
WRITE 14
EXTEND
WRITE 11
TS ERESTORE # ERASCHK RESTORE FLAG
EXTEND # USE FIRST 8 OF 12 SUPER-BANKS (ADD PROG
WRITE 7 # WHEN LAST FOUR ARE NEEDED). PROBABLY V37
CAF PRIO34 # ENABLE INTERRUPTS.
EXTEND
WRITE 13
CAF POSMAX # T3 AND T4 OVERFLOW AS SOON AS POSSIBLE.
TS TIME5 # SO DOES T5.
TS TIME3 # (POSMAX IS PSEUDO INTERRUPT SIGNAL IN
TS TIME4 # CASE RUPT SIGNALLED BEFORE TS TIME3).
EBANK= LST1
CAF STARTEB
TS EBANK # SET FOR E3
CAF NEG1/2 # INITIALIZE WAITLIST DELTA-TS.
TS LST1 +7
TS LST1 +6
TS LST1 +5
TS LST1 +4
TS LST1 +3
TS LST1 +2
TS LST1 +1
TS LST1
CS ENDTASK
TS LST2
TS LST2 +2
TS LST2 +4
TS LST2 +6
## Page 85
TS LST2 +8D
TS LST2 +10D
TS LST2 +12D
TS LST2 +14D
TS LST2 +16D
CS ENDTASK +1
TS LST2 +1
TS LST2 +3
TS LST2 +5
TS LST2 +7
TS LST2 +9D
TS LST2 +11D
TS LST2 +13D
TS LST2 +15D
TS LST2 +17D
CS ZERO # MAKE ALL EXECUTIVE REGISTER SETS
TS PRIORITY # AVAILABLE.
TS PRIORITY +12D
TS PRIORITY +24D
TS PRIORITY +36D
TS PRIORITY +48D
TS PRIORITY +60D
TS PRIORITY +72D
TS NEWJOB # SHOWS NO ACTIVE JOBS.
CAF VAC1ADRC # MAKE ALL VAC AREAS AVAILABLE.
TS VAC1USE
AD LTHVACA
TS VAC2USE
AD LTHVACA
TS VAC3USE
AD LTHVACA
TS VAC4USE
AD LTHVACA
TS VAC5USE
CAF TEN # TURN OFF ALL DISPLAY SYSTEM RELAYS.
TS DIDFLG # DISPLAY INERTIAL DATA FLAG.
DSPOFF TS MPAC
CS BIT12
INDEX MPAC
TS DSPTAB
CCS MPAC
TC DSPOFF
TS INLINK
TS DSPCNT
TS CADRSTOR
## Page 86
TS REQRET
TS CLPASS
TS DSPLOCK
TS MONSAVE # KILL MONITOR
TS MONSAVE1
TS GRABLOCK
TS VERBREG
TS NOUNREG
TS DSPLIST
TS DSPLIST +1
TS DSPLIST +2
TS MARKSTAT
TS EXTVBACT # MAKE EXTENDED VERBS AVAILABLE
TS IMUCADR
TS OPTCADR
TS RADCADR
TS ATTCADR
TS PHASENUM
TS LGYRO
TS DSRUPTSW
CAF NOUTCON
TS NOUT
CS ONE # NO RADAR DESIGNATION.
TS SAMPLIM # NO RADAR RUPTS EXPECTED.
CAF IM33INIT # NO PIP OR TM FAILS.
TS IMODES33
CAF BIT6 # SET LR POS.
EXTEND
RAND 33
AD RMODINIT
TS RADMODES
CAF LESCHK # SELF CHECK GO-TO REGISTER.
TS SELFRET
CS VD1
TS DSPCOUNT
CAF NOMTMLST # SET UP NOMINAL DOWNLINK LIST.
TS DNLSTADR
TC BUF
IFAILINH OCT 35 # ISS FAILURE INHIBIT BITS.
LDNPHAS1 GENADR DNPHASE1
LDNTMGO ECADR DNTMGOTO
NOMTMLST GENADR NOMDNLST
## Page 87
LESCHK GENADR SELFCHK
LLMPRS2 GENADR LMPRESET
VAC1ADRC ADRES VAC1USE
LTHVACA DEC 44
STARTEB ECADR LST1
NUMGRPS EQUALS FIVE # SIX GROUPS CURRENTLY.
# WHERE TO GO ON RESTART IF TERMINATE REQUESTED.
-ELR OCT -22 # -ERROR LIGHT RESET KEY CODE.
-MKREJ OCT -20 # - MARK REJECT.
IM30INIF OCT 37411 # INHIBITS IMU FAIL FOR 5 SEC AND PIP ISSW
IM30INIR OCT 37400 # LEAVE FAIL INHIBITS ALONE.
IM33INIT OCT 16000 # NO PIP OR TM FAIL SIGNALS.
9,6 OCT 440 # MASK FOR PROG ALARM AND GIMBAL LOCK.
RMODINIT OCT 00102
EBANK= DT
IDLEADR 2CADR DAPIDLER
EBANK= DT
SETADR 2CADR SETIDLE
SWINIT OCT 0
OCT 0
OCT 00005
OCT 44516 # INIT FOR DAPBOOLS. DB SET IN SETIDLE.
OCT 0
OCT 0
OCT 0
OCT 0
## Page 88
# PROGRAM TO REVERT TO IDLING MODE (P 00).
# CALLING SEQUENCE: TC (OR TCF) POOH UNDER EXEC (NOT INTERRUPTED).
BLOCK 02
POOH TC POSTJUMP
CADR POOH2 # DO A PARTIAL FRESH START.
BANK 01
POOH2 INHINT
TC STARTSB2 # DOESN'T CLOBBER DOWNLINK.
TC FLAG2DWN
OCT 20 # TURN OFF MISSION TIMER FLAG
# ***** HERE WE SHOULD RESET STATE REGISTERS, DEAL WITH DAP, ETC. *****
CA LPOOH3 # PICK UP RETURN FOR MSTART.
TC MSTART -1 # START MISSION TIMERS COUNTING.
# WE GET A RELINT AT MSTART.
LPOOH3 ADRES POOH3
BANK 7
FORGETIT INHINT # THIS IS ALSO DOV74
EXTEND
DCA KILLCAD
DXCH DVMNEXIT
EXTEND
DCA CADAVER
DXCH AVGEXIT
CAF PINGSMON
TS DVSELECT
TC ENGINOFF
CS BGIMBALS # TURN OFF TRIM GIMBALS
EXTEND
WAND 12
ENEMA INHINT
CAF ZERO # MAKE INACTIVE ALL RESTART PHASES
TS PHASE1 # EXCEPT SERVICER
## Page 89
TS PHASE2
TS PHASE3
TS PHASE4
TS PHASE6
COM
TS -PHASE1
TS -PHASE2
TS -PHASE3
TS -PHASE4
TS -PHASE6
TS MPHASE1 # SET TIMER/PHASE PAIRS TO IDLE STATE
TS MPHASE2
TS MPHASE3
TS MPHASE4
TS MTIMER4
TS MTIMER3
TS MTIMER2
TS MTIMER1
# START TASK TO RESET LMP COMMANDS HERE AND OTHER CLEANUP PROBLEMS
TC POSTJUMP
CADR GOPROG +3
EBANK= LST1
CADAVER 2CADR SERVEXIT
EBANK= LST1
KILLCAD 2CADR AVEGKILL
PINGSMON GENADR PGNCSMON
BGIMBALS OCT 7400
AVEGKILL TC FLAG1DWN # COMES HERE WHEN ENGINE OFF
OCT 1
# SERVICER GOES TO POOH AND ENABLES TIMERS AT DEAD END. ALL PROGRAMS MUSTTURN OFF PIPAS AT END OF MISSION PHASE
TCF ENDOFJOB
FAKESTRT INCR REDOCTR # FAKESTRT ALARM
TC ALARM
OCT 0316
TCF FORGETIT
DOV74 EQUALS FORGETIT
