https://github.com/virtualagc/virtualagc
Revision 078c79d8734a9ed2860303a7c1662004284fe853 authored by Ron Burkey on 07 August 2022, 15:04:04 UTC, committed by Ron Burkey on 07 August 2022, 15:04:04 UTC
assembly listings from yaASM and yaLEMAP. Added some debugging messages to 'make install'. Tweaked debugging messages that VirtualAGC embeds in 'simulate'. Verified buildability in Mint 21, 20, 19, 17, and verified buildability using clang in Mint 17.
1 parent 6bb1acc
Tip revision: 078c79d8734a9ed2860303a7c1662004284fe853 authored by Ron Burkey on 07 August 2022, 15:04:04 UTC
Fixed a potential string-overflow bug in yaASM. Removed timestamps from
Fixed a potential string-overflow bug in yaASM. Removed timestamps from
Tip revision: 078c79d
DAP_INTERFACE_SUBROUTINES.agc
### FILE="Main.annotation"
## Copyright: Public domain.
## Filename: DAP_INTERFACE_SUBROUTINES.agc
## Purpose: A section of Luminary revision 173.
## It is part of the reconstructed source code for the second
## (unflown) release of the flight software for the Lunar
## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 14.
## The code has been recreated from a reconstructed copy of
## Luminary 178, as well as Luminary memo 167 (revision 1).
## It has been adapted such that the resulting bugger words
## exactly match those specified for Luminary 173 in NASA
## drawing 2021152N, which gives relatively high confidence
## that the reconstruction is correct.
## Reference: pp. 1394-1397
## Assembler: yaYUL
## Contact: Ron Burkey <info@sandroid.org>.
## Website: www.ibiblio.org/apollo/index.html
## Mod history: 2019-09-18 MAS Created from Luminary 178.
## Page 1394
BANK 20
SETLOC DAPS3
BANK
EBANK= CDUXD
COUNT* $$/DAPIF
# MOD 0 DATE 11/15/66 BY GEORGE W. CHERRY
# MOD 1 1/23/67 MODIFICATION BY PETER ADLER
# FUNCTIONAL DESCRIPTION
# HEREIN ARE A COLLECTION OF SUBROUTINES WHICH ALLOW MISSION CONTROL PROGRAMS TO CONTROL THE MODE
# AND INTERFACE WITH THE DAP.
# CALLING SEQUENCES
# IN INTERRUPT OR WITH INTERRUPT INHIBITED
# TC IBNKCALL
# FCADR ROUTINE
# IN A JOB WITHOUT INTERRUPT INHIBITED
# INHINT
# TC IBNKCALL
# FCADR ROUTINE
# RELINT
# OUTPUT
# SEE INDIVIDUAL ROUTINES BELOW
# DEBRIS
# A,L, AND SOMETIMES MDUETEMP ODE NOT IN PULSES MODE
## Page 1395
# SUBROUTINE NAMES:
# SETMAXDB, SETMINDB, RESTORDB, PFLITEDB
# MODIFIED: 30 JANUARY 1968 BY P S WEISSMAN TO CREATE RESTORDB.
# MODIFIED: 1 MARCH 1968 BY P S WEISSMAN TO SAVE EBANK AND CREATE PFLITEDB
# FUNCTIONAL DESCRIPTION:
# SETMAXDB - SET DEADBAND TO 5.0 DEGREES
# SETMINDB - SET DEADBAND TO 0.3 DEGREE
# RESTORDB - SET DEADBAND TO .3,1, OR 5 ACCORDING TO BITS 4 AND 5 OF DAPBOOLS
# PFLITEDB - SET DEADBAND TO 1.0 DEGREE AND ZERO THE COMMANDED ATTITUDE CHANGE AND COMMANDED RATE
# ALL ENTRIES SET UP A NOVAC JOB TO DO 1/ACCS SO THAT THE TJETLAW SWITCH CURVES ARE POSITIONED TO
# REFLECT THE NEW DEADBAND. IT SHOULD BE NOTED THAT THE DEADBAND REFERS TO THE ATTITUDE IN THE P-,U-,AND V-AXES.
# SUBROUTINE CALLED: NOVAC
# CALLING SEQUENCE: SAME AS ABOVE
# OR TC RESTORDB +1 FROM ALLCOAST
# DEBRIS: A, L, Q, RUPTREG1, (ITEMPS IN NOVAC)
RESTORDB CAE DAPBOOLS # DETERMINE CREW-SELECTED DEADBAND.
MASK DBSLECT2 # CHECK FOR MAX DB (5 DEG)
EXTEND
BZF +2
TCF SETMAXDB # BIT5 DAPBOOLS IS SET - CREW WANTS 5 DEG
CAE DAPBOOLS
MASK DBSELECT # CHECK FOR 1 DEG DEADBAND SELECTION
EXTEND
BZF SETMINDB
CAF POWERDB # BIT4 DAPBOOLS IS SET - CREW WANTS 1 DEG
TCF SETMAXDB +1
SETMAXDB CAF WIDEDB # SET 5 DEGREE DEADBAND.
+1 TS DB
EXTEND # SET UP JOB TO RE-POSITION SWITCH CURVES.
QXCH RUPTREG1
CALLACCS CAF PRIO27
TC NOVAC
EBANK= AOSQ
2CADR 1/ACCJOB
TC RUPTREG1 # RETURN TO CALLER.
SETMINDB CAF NARROWDB # SET 0.3 DEGREE DEADBAND.
TCF SETMAXDB +1
## Page 1396
PFLITEDB EXTEND # THE RETURN FROM CALLACCS IS TO RUPTREG1.
QXCH RUPTREG1
TC ZATTEROR # ZERO THE ERRORS AND COMMANDED RATES.
CAF POWERDB # SET DB TO 1.0 DEG.
TS DB
TCF CALLACCS # SET UP 1/ACCS AND RETURN TO CALLER.
NARROWDB OCTAL 00155 # 0.3 DEGREE SCALED AT 45.
WIDEDB OCTAL 03434 # 5.0 DEGREES SCALED AT 45.
POWERDB DEC .02222 # 1.0 DEGREE SCALED AT 45.
ZATTEROR CAF EBANK6
XCH EBANK
TS L # SAVE CALLERS EBANK IN L.
CAE CDUX
TS CDUXD
CAE CDUY
TS CDUYD
CAE CDUZ
TS CDUZD
TCF STOPRATE +3
STOPRATE CAF EBANK6
XCH EBANK
TS L # SAVE CALLERS EBANK IN L.
+3 CAF ZERO
TS OMEGAPD
TS OMEGAQD
TS OMEGARD
TS DELCDUX
TS DELCDUY
TS DELCDUZ
TS DELPEROR
TS DELQEROR
TS DELREROR
LXCH EBANK # RESTORE CALLERS EBANK.
TC Q
# SUBROUTINE NAME: ALLCOAST
# WILL BE CALLED BY FRESH STARTS AND ENGINE OFF ROUTINES. .
# CALLING SEQUENCE: (SAME AS ABOVE)
# EXIT: RETURN TO Q.
# SUBROUTINES CALLED: STOPRATE, RESTORDB, NOVAC
# ZERO: (FOR ALL AXES) AOS, ALPHA, AOSTERM, OMEGAD, DELCDU, DELEROR
## Page 1397
# OUTPUT: DRIFTBIT/DAPBOOLS, DB, JOB TO DO 1/ACCS
# DEBRIS: A, L, Q, RUPTREG1, RUPTREG2, (ITEMPS IN NOVAC)
ALLCOAST EXTEND # SAVE Q FOR RETURN
QXCH RUPTREG2
TC STOPRATE # CLEAR RATE INTERFACE. RETURN WITH A=0
LXCH EBANK # AND L=EBANK6. SAVE CALLERS EBANK.
TS AOSQ
TS AOSQ +1
TS AOSR
TS AOSR +1
TS ALPHAQ # FOR DOWNLIST.
TS ALPHAR
TS AOSQTERM
TS AOSRTERM
LXCH EBANK # RESTORE EBANK (EBANK6 NO LONGER NEEDED)
CS DAPBOOLS # SET UP DRIFTBIT
MASK DRIFTBIT
ADS DAPBOOLS
TC RESTORDB +1 # RESTORE DEADBANK TO CREW-SELECTED VALUE.
TC RUPTREG2 # RETURN.
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