Source Code
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These source-code files are part of a reconstructed copy of Artemis 071, the
first release of the Apollo 15 through 17 Command Module (CM) Apollo Guidance
Computer (AGC) software.
The reconstruction began with source code of Artemis 072 previously transcribed
from a digitized copy of that program. The code was then updated by undoing
changes between the two versions. The reconstruction was verified by matching
memory-bank checksums to those listed in drawing 2021154-. Note that page
numbers in the reconstructed code match those on the Artemis 072 printout,
although the changed code would likely have changed page numbers for a real
Artemis 071 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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001460,000002: ## Copyright: Public domain.
001461,000003: ## Filename: ABSOLUTE_LOCATIONS_FOR_UPDATES.agc
001462,000004: ## Purpose: A section of Artemis revision 071.
001463,000005: ## It is part of the reconstructed source code for the first
001464,000006: ## release of the flight software for the Command Module's
001465,000007: ## (CM) Apollo Guidance Computer (AGC) for Apollo 15 through
001466,000008: ## 17. The code has been recreated from a copy of Artemis 072.
001467,000009: ## It has been adapted such that the resulting bugger words
001468,000010: ## exactly match those specified for Artemis 071 in NASA
001469,000011: ## drawing 2021154-, which gives relatively high confidence
001470,000012: ## that the reconstruction is correct.
001471,000013: ## Reference: 36
001472,000014: ## Assembler: yaYUL
001473,000015: ## Contact: Ron Burkey <info@sandroid.org>.
001474,000016: ## Website: www.ibiblio.org/apollo/index.html
001475,000017: ## Mod history: 2019-08-14 MAS Created from Artemis 072.
001476,000018:
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Page 36
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001478,000020: # ECADR MNEMONIC
001479,000021: # ----- --------
001480,000022: 43,2000 =ECADR UPSVFLAG # CSM/LM STATE VECTOR UPDATE
001481,000023:
001482,000024: ??????? =ECADR XSMD # DESIRED REFSMMAT UPDATE
001483,000025:
001484,000026: ??????? =ECADR REFSMMAT # REFSMMAT UPDATE
001485,000027:
001486,000028: ??????? =ECADR DELVSLV # EXTERNAL DELTA-V UPDATE
001487,000029:
001488,000030: ??????? =ECADR LAT(SPL) # RETROFIRE EXT DELTA-V OR ENTRY UPDATE
001489,000031:
001490,000032: ??????? =ECADR TIG # LAMBERT TARGET UPDATE
001491,000033:
001492,000034: ??????? =ECADR RLS # LANDING SITE VECTOR UPDATE
End of include-file ABSOLUTE_LOCATIONS_FOR_UPDATES.agc. Parent file is MAIN.agc