Source Code

These source-code files were from the printout at the MIT Museum, with many thanks to Deborah Douglas, the Museum's Curator of Science and Technology, for releasing it to us. The printout was digitally photographed by Paul Fjeld. A team of volunteers transcribed the source code manually from these images or, where appropriate, modified already-transcribed but similar source Luminary 131 (Apollo 13) source code to agree with the images from the printout. Note that the page images presented online are of reduced quality, and that higher-quality 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 001 OF AGC PROGRAM LMY99 BY NASA 2021112-061
	20'35 OCT. 28,1968
Note that the date is the date of the printout, not the date of the program revision.

046770,000002:                                                                                                  ## Copyright:   Public domain.
046771,000003:                                                                                                  ## Filename:    INTERPRETIVE_CONSTANT.agc
046772,000004:                                                                                                  ## Purpose:     Part of the source code for Luminary 1A build 099.
046773,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM)
046774,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
046775,000007:                                                                                                  ## Assembler:   yaYUL
046776,000008:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
046777,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo.
046778,000010:                                                                                                  ## Pages:       1100-1101
046779,000011:                                                                                                  ## Mod history: 2009-05-25 RSB  Adapted from the corresponding 
046780,000012:                                                                                                  ##                              Luminary131 file, using page 
046781,000013:                                                                                                  ##                              images from Luminary 1A.
046782,000014:                                                                                                  ##
046783,000015:                                                                                                  ## This source code has been transcribed or otherwise adapted from
046784,000016:                                                                                                  ## digitized images of a hardcopy from the MIT Museum.  The digitization
046785,000017:                                                                                                  ## was performed by Paul Fjeld, and arranged for by Deborah Douglas of
046786,000018:                                                                                                  ## the Museum.  Many thanks to both.  The images (with suitable reduction
046787,000019:                                                                                                  ## in storage size and consequent reduction in image quality as well) are
046788,000020:                                                                                                  ## available online at www.ibiblio.org/apollo.  If for some reason you
046789,000021:                                                                                                  ## find that the images are illegible, contact me at info@sandroid.org
046790,000022:                                                                                                  ## about getting access to the (much) higher-quality images which Paul
046791,000023:                                                                                                  ## actually created.
046792,000024:                                                                                                  ##
046793,000025:                                                                                                  ## Notations on the hardcopy document read, in part:
046794,000026:                                                                                                  ##
046795,000027:                                                                                                  ##      Assemble revision 001 of AGC program LMY99 by NASA 2021112-61
046796,000028:                                                                                                  ##      16:27 JULY 14, 1969 
046797,000029: 

Page 1100

046799,000031: 23,2000                                           SETLOC   INTPRET1                              
046800,000032: 23,2000                                           BANK                                           
046801,000033: 
046802,000034: 23,2511                                           COUNT*   $$/ICONS                              
046803,000035: 23,2511           10000 00000  DP1/4TH            2DEC     .25                                   
046804,000036: 
046805,000037: 23,2513           00000 00000  UNITZ              2DEC     0          B-28                       
046806,000038: 
046807,000039: 23,2515           00000 00000  UNITY              2DEC     0          B-28                       
046808,000040: 
046809,000041: 23,2517           20000 00000  UNITX              2DEC     .5                                    
046810,000042: 
046811,000043: 23,2521           00000 00000  ZEROVECS           2DEC     0          B-28                       
046812,000044: 
046813,000045: 23,2523           00000 00000                     2DEC     0          B-28                       
046814,000046: 
046815,000047: 23,2525           00000 00000                     2DEC     0          B-28                       
046816,000048: 
046817,000049: 23,2527  23,2517               DPHALF             =        UNITX                                 
046818,000050: 23,2527           37777        DPPOSMAX           OCT      37777                                 
046819,000051: 23,2530           37777                           OCT      37777                                 
046820,000052: 

Page 1101

046822,000054:                                                                                                  #  INTERPRETIVE CONSTANTS IN THE OTHER HALF-MEMORY
046823,000055: 
046824,000056: 12,2000                                           SETLOC   INTPRET2                              
046825,000057: 12,2000                                           BANK                                           
046826,000058: 
046827,000059: 12,2000                                           COUNT*   $$/ICONS                              
046828,000060: 12,2000           00000 00000  ZUNIT              2DEC     0          B-28                       
046829,000061: 
046830,000062: 12,2002           00000 00000  YUNIT              2DEC     0          B-28                       
046831,000063: 
046832,000064: 12,2004           20000 00000  XUNIT              2DEC     .5                                    
046833,000065: 
046834,000066: 12,2006           00000 00000  ZEROVEC            2DEC     0          B-28                       
046835,000067: 
046836,000068: 12,2010           00000 00000                     2DEC     0          B-28                       
046837,000069: 
046838,000070: 12,2012           00000 00000                     2DEC     0          B-28                       
046839,000071: 
046840,000072: 12,2014           77777                           OCT      77777                                 #  -0, -6, -12 MUST REMAIN IN THIS ORDER
046841,000073: 12,2015           77771        DFC-6              DEC      -6         B-14                       
046842,000074: 12,2016           77763        DFC-12             DEC      -12        B-14                       
046843,000075: 12,2017           37777 37777  LODPMAX            2OCT     3777737777                            #  THESE TWO CONSTANTS MUST REMAIN
046844,000076: 
046845,000077: 12,2021           37777 37777  LODPMAX1           2OCT     3777737777                            #  ADJACENT AND THE SAME FOR INTEGRATION
046846,000078: 
046847,000079: 12,2023  12,2006               ZERODP             =        ZEROVEC                               
046848,000080: 12,2023  12,2004               HALFDP             =        XUNIT                                 
046849,000081: 
046850,000082: 

End of include-file INTERPRETIVE_CONSTANT.agc.  Parent file is MAIN.agc