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05 April 2024, 22:44:17 UTC
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 
Fixed a potential string-overflow bug in yaASM.  Removed timestamps from
 
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.
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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
Tip revision: 078c79d
RADAR_LEADIN_ROUTINES.agc 
### FILE="Main.annotation"
## Copyright:   Public domain.
## Filename:    RADAR_LEADIN_ROUTINES.agc
## Purpose:     A section of LUM69 revision 2.
##              It is part of the reconstructed source code for the flown
##              version of the flight software for the Lunar Module's (LM)
##              Apollo Guidance Computer (AGC) for Apollo 10. The code has
##              been recreated from a copy of Luminary revsion 069, using
##              changes present in Luminary 099 which were described in
##              Luminary memos 75 and 78. The code has been adapted such
##              that the resulting bugger words exactly match those specified
##              for LUM69 revision 2 in NASA drawing 2021152B, which gives
##              relatively high confidence that the reconstruction is correct.
## Reference:   pp. 502-503
## Assembler:   yaYUL
## Contact:     Ron Burkey <info@sandroid.org>.
## Website:     www.ibiblio.org/apollo/index.html
## Mod history: 2019-07-27 MAS  Created from Luminary 69.

## Page 502
		BANK	25
		SETLOC	RRLEADIN
		BANK
		
		EBANK=	RSTACK
		
# RADAR SAMPLING LOOP.

		COUNT*	$$/RLEAD
RADSAMP		CCS	RSAMPDT		# TIMES NORMAL ONCE-PER-SECOND SAMPLING.
		TCF	+2
		TCF	TASKOVER	# +0 INSERTED MANUALLY TERMINATES TEST.
		
		TC	WAITLIST
		EBANK=	RSTACK
		2CADR	RADSAMP
		
		CAF	PRIO25
		TC	NOVAC
		EBANK=	RSTACK
		2CADR	DORSAMP
		
		CAF	BIT14		# FOR CYCLIC SAMPLING, RTSTDEX=
		EXTEND			# RTSTLOC/2 + RTSTBASE
		MP	RTSTLOC
		AD	RTSTBASE	# 0 FOR RR, 2 FOR LR.
		TS	RTSTDEX
		TCF	TASKOVER
		
# DO THE ACTUAL RADAR SAMPLE.

DORSAMP		TC	VARADAR		# SELECTS VARIABLE RADAR CHANNEL.
		TC	BANKCALL
		CADR	RADSTALL
		
		INCR	RFAILCNT	# ADVANCE FAIL COUNTER BUT ACCEPT BAD DATA
		
DORSAMP2	INHINT
		CA	FLAGWRD5	# DON'T UPDATE RSTACK IF IN R77.
		MASK	R77FLBIT
		CCS	A
		TCF	+4
		
		DXCH	SAMPLSUM
		INDEX	RTSTLOC
		DXCH	RSTACK
		
		CS	RTSTLOC		# CYCLE RTSTLOC.
		AD	RTSTMAX
		EXTEND
		
## Page 503		
		BZF	+3
		CA	RTSTLOC
		AD	TWO		# STORAGE IS DP
		TS	RTSTLOC
		TCF	ENDOFJOB	# CONTINUOUS SAMPLING AND 2N TRIES - GONE.
		
# VARIABLE RADAR DATA CALLER FOR ONE MEASUREMENT ONLY.

VARADAR		CAF	ONE		# WILL BE SENT TO RADAR ROUTINE IN A BY
		TS	BUF2		# SWCALL.
		INDEX	RTSTDEX
		CAF	RDRLOCS
		TCF	SWCALL		# NOT TOUCHING Q.
		
RDRLOCS		CADR	RRRANGE		# = 0
		CADR	RRRDOT		# = 1
		CADR	LRVELX		# = 2
		CADR	LRVELY		# = 3
		CADR	LRVELZ		# = 4
		CADR	LRALT		# = 5
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