Source Code
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These source-code files are part of a reconstructed copy of Comanche 051, the
original release of the Apollo 11 Command Module (CM) Apollo Guidance Computer
(AGC) software.
The reconstruction began with source code of Comanche 055 previously transcribed
from a digitized copy of that program. The code was then updated by undoing
changes related to the R-2 lunar potential model, using hints from program
comments and change-indicating asterisks in the Comanche 055 listing as a guide.
The reconstruction was verified by matching memory-bank checksums to those listed
in drawing 2021153D. Note that page numbers in the reconstructed code match those
on the Comanche 055 printout, although the added code would likely have changed page
numbers for a real Comanche 051 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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000021,000002: ## Copyright: Public domain.
000022,000003: ## Filename: CONTRACT_AND_APPROVALS.agc
000023,000004: ## Purpose: A section of Comanche revision 051.
000024,000005: ## It is part of the reconstructed source code for the
000025,000006: ## original release of the flight software for the Command
000026,000007: ## Module's (CM) Apollo Guidance Computer (AGC) for Apollo 11.
000027,000008: ## The code has been recreated from a copy of Comanche 055. It
000028,000009: ## has been adapted such that the resulting bugger words
000029,000010: ## exactly match those specified for Comanche 51 in NASA drawing
000030,000011: ## 2021153D, which gives relatively high confidence that the
000031,000012: ## reconstruction is correct.
000032,000013: ## Reference: p. 1
000033,000014: ## Assembler: yaYUL
000034,000015: ## Contact: Ron Burkey <info@sandroid.org>.
000035,000016: ## Website: www.ibiblio.org/apollo/index.html
000036,000017: ## Mod history: 2019-07-30 MAS Created from Comanche 55.
000037,000018:
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Page 1
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000039,000020:
000040,000021: # ************************************************************************
000041,000022: # * *
000042,000023: # * THIS AGC PROGRAM SHALL ALSO BE REFERRED TO AS: *
000043,000024: # * *
000044,000025: # * *
000045,000026: # * COLOSSUS 2A *
000046,000027: # * *
000047,000028: # * *
000048,000029: # * THIS PROGRAM IS INTENDED FOR USE IN THE CM AS SPECIFIED *
000049,000030: # * IN REPORT R-577. THIS PROGRAM WAS PREPARED UNDER DSR *
000050,000031: # * PROJECT 55-23870, SPONSORED BY THE MANNED SPACECRAFT *
000051,000032: # * CENTER OF THE NATIONAL AERONAUTICS AND SPACE *
000052,000033: # * ADMINISTRATION THROUGH CONTRACT NAS 9-4065 WITH THE *
000053,000034: # * INSTRUMENTATION LABORATORY, MASSACHUSETTS INSTITUTE OF *
000054,000035: # * TECHNOLOGY, CAMBRIDGE, MASS. *
000055,000036: # * *
000056,000037: # ************************************************************************
000057,000038:
000058,000039:
000059,000040: # SUBMITTED: MARGARET H. HAMILTON DATE: 28 MAR 69
000060,000041: # M.H.HAMILTON, COLOSSUS PROGRAMMING LEADER
000061,000042: # APOLLO GUIDANCE AND NAVIGATION
000062,000043:
000063,000044: # APPROVED: DANIEL J. LICKLY DATE: 28 MAR 69
000064,000045: # D.J.LICKLY, DIRECTOR, MISSION PROGRAM DEVELOPMENT
000065,000046: # APOLLO GUIDANCE AND NAVIGATION PROGRAM
000066,000047:
000067,000048: # APPROVED: FRED H. MARTIN DATE: 28 MAR 69
000068,000049: # FRED H. MARTIN, COLOSSUS PROJECT MANGER
000069,000050: # APOLLO GUIDANCE AND NAVIGATION PROGRAM
000070,000051:
000071,000052: # APPROVED: NORMAN E. SEARS DATE: 28 MAR 69
000072,000053: # N.E. SEARS, DIRECTOR, MISSION DEVELOPMENT
000073,000054: # APOLLO GUIDANCE AND NAVIGATION PROGRAM
000074,000055:
000075,000056: # APPROVED: RICHARD H. BATTIN DATE: 28 MAR 69
000076,000057: # R.H. BATTIN, DIRECTOR, MISSION DEVELOPMENT
000077,000058: # APOLLO GUIDANCE AND NAVIGATION PROGRAM
000078,000059:
000079,000060: # APPROVED: DAVID G. HOAG DATE: 28 MAR 69
000080,000061: # D.G. HOAG, DIRECTOR
000081,000062: # APOLLO GUIDANCE AND NAVIGATION PROGRAM
000082,000063:
000083,000064: # APPROVED: RALPH R. RAGAN DATE: 28 MAR 69
000084,000065: # R.R. RAGAN, DEPUTY DIRECTOR
000085,000066: # INSTRUMENTATION LABORATORY
000086,000067:
End of include-file CONTRACT_AND_APPROVALS.agc. Parent file is MAIN.agc