Source Code
![]() |
These source-code files were obtained by digitally photographing the
Colossus 237 program listing from the private collection of original
AGC developer Fred Martin, and then modifying pre-existing Colossus 249
(Apollo 9) source files to incorporate changes. Note that the page images
presented online are of reduced quality, and that additional images
are available. Report any conversion errors or legibility
problems in page images to info@sandroid.org.
Notations on the program listing read, in part:GAP: ASSEMBLE REVISION 237 OF AGC PROGRAM COLOSSUS BY NASA 2021111-031 1:17 AUG. 24, 1968 |
049691,000002: # Copyright: Public domain.
049692,000003: # Filename: SINGLE_PRECISION_SUBROUTINES.agc
049693,000004: # Purpose: Part of the source code for Colossus build 237.
049694,000005: # This is for the Command Module's (CM) Apollo Guidance
049695,000006: # Computer (AGC), we believe for Apollo 8.
049696,000007: # Assembler: yaYUL
049697,000008: # Contact: Onno Hommes <ohommes@alumni.cmu.edu>
049698,000009: # Website: www.ibiblio.org/apollo/index.html
049699,000010: # Page scans: www.ibiblio.org/apollo/ScansForConversion/Colossus237/
049700,000011: # Mod history: 2010-06-03 OH Adapted from corresponding Colossus 249 file.
049701,000012: # 2010-12-04 JL Remove Colossus 249 header comments. Change to double-has page numbers.
049702,000013: # 2011-02-08 JL Minor fixes.
049703,000014:
049704,000015: # # Page 1174
049705,000016: 4767 BLOCK 02
049706,000017:
049707,000018: # SINGLE PRECISION SINE AND COSINE
049708,000019:
049709,000020: 4767 COUNT 02/INTER
049710,000021: 4767 64675 SPCOS AD HALF # ARGUMENTS SCALED AT PI
049711,000022: 4770 55075 SPSIN TS TEMK
049712,000023: 4771 14773 TCF SPT
049713,000024: 4772 41075 CS TEMK
049714,000025: 4773 60000 SPT DOUBLE
049715,000026: 4774 55075 TS TEMK
049716,000027: 4775 15006 TCF POLLEY
049717,000028: 4776 57075 XCH TEMK
049718,000029: 4777 51075 INDEX TEMK
049719,000030: 5000 64673 AD LIMITS
049720,000031: 5001 40000 COM
049721,000032: 5002 61075 AD TEMK
049722,000033: 5003 55075 TS TEMK
049723,000034: 5004 15006 TCF POLLEY
049724,000035: 5005 15024 TCF ARG90
049725,000036: 5006 00006 POLLEY EXTEND
049726,000037: 5007 71075 MP TEMK
049727,000038: 5010 55076 TS SQ
049728,000039: 5011 00006 EXTEND
049729,000040: 5012 74742 MP C5/2
049730,000041: 5013 67706 AD C3/2
049731,000042: 5014 00006 EXTEND
049732,000043: 5015 71076 MP SQ
049733,000044: 5016 67666 AD C1/2
049734,000045: 5017 00006 EXTEND
049735,000046: 5020 71075 MP TEMK
049736,000047: 5021 20001 DDOUBL
049737,000048: 5022 55075 TS TEMK
049738,000049: 5023 00002 TC Q
049739,000050: 5024 50000 ARG90 INDEX A
049740,000051: 5025 44673 CS LIMITS
049741,000052: 5026 00002 TC Q # RESULT SCALED AT 1
049742,000053: # SPROOT WAS DELETED IN REV 51 OF MASTER. ASS. CONT. HAS CARDS.
End of include-file SINGLE_PRECISION_SUBROUTINES.agc. Parent file is MAIN.agc