Source Code
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These source-code files were derived originally from the scan from MIT's Dibner Institute's
now-discontinued website titled "History of Recent Science and Technology", which
in turn was originally created by Gary Neff, though his high-quality scans were
unfortunately reduced in legibility when presented online.
The markings on the front of the
printout imply that it was the original AGC developer Norm Brodeur's copy.
A scan by Ron Burkey has superceded it, made from a more-legible copy from the collection of original
AGC developer Fred Martin. The source code was transcribed from
those images by Ron Burkey. 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:ASSEMBLE REVISION 249 OF AGC PROGRAM COLOSSUS BY NASA 2021111-041 20'35 OCT. 28,1968Note that the date is the date of the printout, not the date of the program revision. |
050635,000002: ## Copyright: Public domain.
050636,000003: ## Filename: FIXED_FIXED_CONSTANT_POOL.agc
050637,000004: ## Purpose: Part of the source code for Colossus, build 249.
050638,000005: ## It is part of the source code for the Command Module's (CM)
050639,000006: ## Apollo Guidance Computer (AGC), possibly for Apollo 8 and 9.
050640,000007: ## Assembler: yaYUL
050641,000008: ## Reference: pp. 1182-1186 of 1701.pdf.
050642,000009: ## Contact: Ron Burkey <info@sandroid.org>.
050643,000010: ## Mod history: 04/27/03 RSB. Adapted from the Luminary131 file with the
050644,000011: ## same name. The changes were highly trivial
050645,000012: ## in nature:
050646,000013: ## 1. A small number of constants were removed.
050647,000014: ## 2. The names of the COUNT* counters were
050648,000015: ## changed.
050649,000016: ## 3. Comments (such as pagination and header
050650,000017: ## materials) were changed.
050651,000018: ## No constants changed value, to my knowledge.
050652,000019: ##
050653,000020: ## The contents of the "Colossus249" files, in general, are transcribed
050654,000021: ## from a scanned document obtained from MIT's website,
050655,000022: ## http://hrst.mit.edu/hrs/apollo/public/archive/1701.pdf. Notations on this
050656,000023: ## document read, in part:
050657,000024: ##
050658,000025: ## Assemble revision 249 of AGC program Colossus by NASA
050659,000026: ## 2021111-041. October 28, 1968.
050660,000027: ##
050661,000028: ## This AGC program shall also be referred to as
050662,000029: ## Colossus 1A
050663,000030: ##
050664,000031: ## Prepared by
050665,000032: ## Massachusetts Institute of Technology
050666,000033: ## 75 Cambridge Parkway
050667,000034: ## Cambridge, Massachusetts
050668,000035: ## under NASA contract NAS 9-4065.
050669,000036: ##
050670,000037: ## Refer directly to the online document mentioned above for further information.
050671,000038: ## Please report any errors (relative to 1701.pdf) to info@sandroid.org.
050672,000039:
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Page 1182 |
050674,000041: 4671 BLOCK 02
050675,000042: 4671 COUNT* 02/FCONS
050676,000043:
050677,000044: # THE FOLLOWING TABLE OF 18 VALUES IS INDEXED. DO NOT INSERT OR REMOVE ANY QUANTITIES
050678,000045:
050679,000046: 4671 37777 DPOSMAX OCT 37777 # MUST PRECED POSMAX
050680,000047: 4672 37777 POSMAX OCT 37777
050681,000048:
050682,000049: 4673 4673 LIMITS = NEG1/2
050683,000050:
050684,000051: 4673 57777 NEG1/2 OCT -20000 # USED BY SIN ROUTINE (MUST BE TWO
050685,000052: # LOCATIONS IN FRONT OF BIT14)
050686,000053:
050687,000054: # BIT TABLE
050688,000055:
050689,000056: 4674 40000 BIT15 OCT 40000
050690,000057: 4675 20000 BIT14 OCT 20000
050691,000058: 4676 10000 BIT13 OCT 10000
050692,000059: 4677 04000 BIT12 OCT 04000
050693,000060: 4700 02000 BIT11 OCT 02000
050694,000061: 4701 01000 BIT10 OCT 01000
050695,000062: 4702 00400 BIT9 OCT 00400
050696,000063: 4703 00200 BIT8 OCT 00200
050697,000064: 4704 00100 BIT7 OCT 00100
050698,000065: 4705 00040 BIT6 OCT 00040
050699,000066: 4706 00020 BIT5 OCT 00020
050700,000067: 4707 00010 BIT4 OCT 00010
050701,000068: 4710 00004 BIT3 OCT 00004
050702,000069: 4711 00002 BIT2 OCT 00002
050703,000070: 4712 00001 BIT1 OCT 00001
050704,000071:
050705,000072: # DO NOT DESTROY THIS COMBINATION, SINCE IT IS USED IN DOUBLE PRECISION INSTRUCTIONS.
050706,000073: 4713 77777 NEG0 OCT -0 # MUST PRECEDE ZERO
050707,000074: 4714 00000 ZERO OCT 0 # MUST FOLLOW NEG0
050708,000075: # BIT1 OCT 00001
050709,000076: # NO.WDS OCT 2 # INTERPRETER
050710,000077: # OCTAL3 OCT 3 # INTERPRETER
050711,000078: # R3D1 OCT 4 # PINBALL
050712,000079: 4715 00005 FIVE OCT 5
050713,000080: # REVCNT OCT 6 # INTERPRETER
050714,000081: 4716 00007 SEVEN OCT 7
050715,000082: # BIT4 OCT 00010
050716,000083: # R2D1 OCT 11 # PINBALL
050717,000084: 4717 4334 OCT11 = R2D1 # P20S
050718,000085: # BINCON DEC 10 # PINBALL (OCTAL 12)
050719,000086: 4717 00013 ELEVEN DEC 11 B-14
050720,000087: # OCT14 OCT 14 # ALARM AND ABORT (FILLER)
050721,000088: 4720 00015 OCT15 OCT 15
050722,000089: # R1D1 OCT 16 # PINBALL
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Page 1183 |
050724,000091: 4721 00017 LOW4 OCT 17
050725,000092: # BIT5 OCT 00020
050726,000093: # ND1 OCT 21 # PINBALL
050727,000094: # VD1 OCT 23 # PINBALL
050728,000095: # OCT24 OCT 24 # SERVICE ROUTINES
050729,000096: # MD1 OCT 25 # PINBALL
050730,000097: 4722 00030 BITS4&5 OCT 30
050731,000098: # OCT31 OCT 31 # SERVICE ROUTINES
050732,000099: 4723 00032 CALLCODE OCT 00032
050733,000100: # LOW5 OCT 37 # PINBALL
050734,000101: # 33DEC DEC 33 # PINBALL (OCTAL 41)
050735,000102: # 34DEC DEC 34 # PINBALL (OCTAL 42)
050736,000103: 4724 00045 TBUILDFX DEC 37 B-14 # BUILDUP FOR CONVENIENCE IN DAPTESTING
050737,000104: 4725 00046 TDECAYFX DEC 38 B-14 # CONVENIENCE FOR DAPTESTING
050738,000105: # BIT6 OCT 00040
050739,000106: 4726 00050 OCT50 OCT 50
050740,000107: 4727 00055 DEC45 DEC 45 B-14
050741,000108: 4730 00060 SUPER011 OCT 60 # BITS FOR SUPERBNK SETTING 011.
050742,000109: 4731 00062 .5SEC DEC 50 B-14
050743,000110: # BIT7 OCT 00100
050744,000111:
050745,000112: 4732 4704 SUPER100 = BIT7 # BITS FOR SUPERBNK SETTING 100
050746,000113: # (LAST 4K OF ROPE)
050747,000114: 4732 00120 SUPER101 OCT 120 # BITS FOR SUPERBNK SETTING 101
050748,000115: # OCT121 OCT 121 # SERVICE ROUTINES
050749,000116: # (FIRST 8K OF ACM)
050750,000117: 4733 00140 SUPER110 OCT 140 # BITS FOR SUPERBNK SETTING 110.
050751,000118: # (LAST BK OF ACM)
050752,000119: 4734 00144 1SEC DEC 100 B-14
050753,000120: # LOW7 OCT 177 # INTERPRETER
050754,000121: # BIT8 OCT 00200
050755,000122: # OT215 OCT 215 # ALARM AND ABORT
050756,000123: # 8,5 OCT 00220 # P20-P25 SUNDANCE
050757,000124: 4735 00310 2SECS DEC 200 B-14
050758,000125: # LOW8 OCT 377 # PINBALL
050759,000126: # BIT9 OCT 00400
050760,000127: 4736 00401 GN/CCODE OCT 00401 # SET S/C CONTROL SWITCH TO G/N
050761,000128: 4737 00454 3SECS DEC 300 B-14
050762,000129: 4740 00620 4SECS DEC 400 B-14
050763,000130: 4741 00777 LOW9 OCT 777
050764,000131: # BIT10 OCT 01000
050765,000132: # 5.5DEGS DEC .03056 # P20-P25 SUNDANCE (OCTAL 00765)
050766,000133: # OCT1103 OCT 1103 # ALARM AND ABORT
050767,000134: 4742 01124 C5/2 DEC .0363551 # (OCTAL 01124)
050768,000135: 4743 01211 V05N09 VN 0509 # (SAME AS OCTAL 1211)
050769,000136: 4744 01400 OCT1400 OCT 01400
050770,000137: 4745 01426 V06N22 VN 0622
050771,000138: # MID5 OCT 1740 # PINBALL
050772,000139: 4746 01776 BITS2-10 OCT 1776
050773,000140: 4747 01777 LOW10 OCT 1777
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Page 1184 |
050775,000142: # BIT11 OCT 02000
050776,000143: # 2K+3 OCT 2003 # PINBALL
050777,000144: 4750 02177 LOW7+2K OCT 2177 # OP CODE MASK + BANK 1 FBANK SETTING
050778,000145: 4751 02400 EBANK5 OCT 02400
050779,000146: 4752 03000 PRIO3 OCT 03000
050780,000147: 4753 03400 EBANK7 OCT 03400
050781,000148: # LOW11 OCT 3777 # PINBALL
050782,000149: # BIT12 OCT 04000
050783,000150: # RELTAB OCT 04025 # T4RUPT
050784,000151: 4754 05000 PRIO5 OCT 05000
050785,000152: 4755 06000 PRIO6 OCT 06000
050786,000153: 4756 07000 PRIO7 OCT 07000
050787,000154:
050788,000155: # BIT13 OCT 10000
050789,000156: # OCT 10003 # T4RUPT RELTAB +1D
050790,000157: # 13,7,2 OCT 10102 # P20-P25 SUNDANCE
050791,000158: 4757 11000 PRIO11 OCT 11000
050792,000159: # PRIO12 OCT 12000 # BANKCALL
050793,000160: 4760 13000 PRIO13 OCT 13000
050794,000161: 4761 14000 PRIO14 OCT 14000
050795,000162: # OCT 14031 # T4RUPT RELTAB +2D
050796,000163: 4762 15000 PRIO15 OCT 15000
050797,000164: 4763 16000 PRIO16 OCT 16000
050798,000165: # 85DEGS DEC .45556 # P20-P25 SUNDANCE (OCTAL 16450)
050799,000166: 4764 17000 PRIO17 OCT 17000
050800,000167: 4765 17770 OCT17770 OCT 17770
050801,000168: # BIT14 OCT 20000
050802,000169: # OCT 20033 # T4RUPT RELTAB +3D
050803,000170: 4766 21000 PRIO21 OCT 21000
050804,000171:
050805,000172: 7657 BLOCK 03
050806,000173: 7657 COUNT* 03/FCONS
050807,000174:
050808,000175: 7657 22000 PRIO22 OCT 22000 # SERVICE ROUTINES
050809,000176: 7660 23000 PRIO23 OCT 23000
050810,000177: 7661 24000 PRIO24 OCT 24000
050811,000178: # 5/8+1 OCT 24001 # SINGLE PRECISION SUBROUTINES
050812,000179: # OCT 24017 # T4RUPT RELTAB +4D
050813,000180: 7662 25000 PRIO25 OCT 25000
050814,000181: 7663 26000 PRIO26 OCT 26000
050815,000182: 7664 27000 PRIO27 OCT 27000
050816,000183: # CHRPRIO OCT 30000 # PINBALL
050817,000184: # OCT 30036 # T4RUPT RELTAB +5D
050818,000185: 7665 31000 PRIO31 OCT 31000
050819,000186: 7666 31103 C1/2 DEC .7853134 # (OCTAL 31103)
050820,000187: 7667 32000 PRIO32 OCT 32000
050821,000188: 7670 33000 PRIO33 OCT 33000
050822,000189: 7671 34000 PRIO34 OCT 34000
050823,000190: # OCT 34034 # T4RUPT RELTAB +6D
050824,000191: 7672 35000 PRIO35 OCT 35000
050825,000192: 7673 36000 PRIO36 OCT 36000
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Page 1185 |
050827,000194: 7674 37000 PRIO37 OCT 37000
050828,000195: 7675 37401 63/64+1 OCT 37401
050829,000196: # MID7 OCT 37600 # PINBALL
050830,000197: 7676 37766 OCT37766 OCT 37766
050831,000198: 7677 37774 OCT37774 OCT 37774
050832,000199: 7700 37776 OCT37776 OCT 37776
050833,000200: # DPOSMAX OCT 37777
050834,000201: # BIT15 OCT 40000
050835,000202: # OCT40001 OCT 40001 # INTERPRETER (CS 1 INSTRUCTION)
050836,000203: 7701 40014 DLOADCOD OCT 40014
050837,000204: 7702 40015 DLOAD* OCT 40015
050838,000205: # OCT 40023 # T4RUPT RELTAB +7D
050839,000206: 7703 40040 BIT15+6 OCT 40040
050840,000207: 7704 40200 OCT40200 OCT 40200
050841,000208: # OCT 44035 # T4RUPT RELTAB +8D
050842,000209: # OCT 50037 # T4RUPT RELTAB +9D
050843,000210: # OCT 54000 # T4RUPT RELTAB +10D
050844,000211: 7705 57777 -BIT14 OCT 57777
050845,000212: # RELTAB11 OCT 60000 # T4RUPT
050846,000213: 7706 65552 C3/2 DEC -.3216147 # (OCTAL 65552)
050847,000214: 7707 70000 13,14,15 OCT 70000
050848,000215: 7710 73777 -1/8 OCT 73777
050849,000216: 7711 74000 HIGH4 OCT 74000
050850,000217: 7712 74056 -ENDERAS DEC -2001 B-14 # (OCTAL 74056)
050851,000218: # HI5 OCT 76000 # PINBALL
050852,000219: 7713 77700 HIGH9 OCT 77700
050853,000220: # -ENDVAC DEC -45 # INTERPRETER (OCTAL 77722)
050854,000221: # -OCT10 OCT -10 # (OCTAL 77767)
050855,000222: # NEG4 DEC -4 # (OCTAL 77773)
050856,000223: 7714 77774 NEG3 DEC -3 B-14
050857,000224: 7715 77775 NEG2 OCT 77775
050858,000225: 7716 77776 NEGONE DEC -1 B-14
050859,000226:
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Page 1186 |
050861,000228:
050862,000229: # DEFINED BY EQUALS
050863,000230:
050864,000231: # IT WOULD BE TO THE USERS ADVANTAGE TO OCCASIONALLY CHECK ANY OF THESE SYMBOLS IN ORDER TO PREVENT ANY
050865,000232: # ACCIDENTAL DEFINITION CHANGES.
050866,000233:
050867,000234: 7717 7716 MINUS1 = NEG1
050868,000235: 7717 7716 NEG1 = NEGONE
050869,000236: 7717 4712 ONE = BIT1
050870,000237: 7717 4711 TWO = BIT2
050871,000238: 7717 6214 THREE = OCTAL3
050872,000239: 7717 6214 LOW2 = THREE
050873,000240: 7717 4710 FOUR = BIT3
050874,000241: 7717 6211 SIX = REVCNT
050875,000242: 7717 4716 LOW3 = SEVEN
050876,000243: 7717 4707 EIGHT = BIT4
050877,000244: 7717 4334 NINE = R2D1
050878,000245: 7717 4377 TEN = BINCON
050879,000246: 7717 4717 NOUTCON = ELEVEN
050880,000247: 7717 4374 OCT23 = VD1
050881,000248: 7717 4376 OCT25 = MD1
050882,000249: 7717 4701 PRIO1 = BIT10
050883,000250: 7717 4744 EBANK3 = OCT1400
050884,000251: 7717 4700 PRIO2 = BIT11
050885,000252: 7717 4732 OCT120 = SUPER101
050886,000253: 7717 4733 OCT140 = SUPER110
050887,000254: 7717 4700 2K = BIT11
050888,000255: 7717 4700 EBANK4 = BIT11
050889,000256: 7717 4677 PRIO4 = BIT12
050890,000257: 7717 4752 EBANK6 = PRIO3
050891,000258: 7717 4676 QUARTER = BIT13
050892,000259: 7717 4676 PRIO10 = BIT13
050893,000260: 7717 7632 OCT10001 = CCSL
050894,000261: 7717 4675 POS1/2 = HALF
050895,000262: 7717 4675 PRIO20 = BIT14
050896,000263: 7717 4675 HALF = BIT14
050897,000264: 7717 4371 PRIO30 = CHRPRIO
050898,000265: 7717 4371 BIT13-14 = PRIO30 # INTERPRETER USES IN PROCESSING STORECODE
050899,000266: 7717 6440 OCT30002 = TLOAD +1
050900,000267: 7717 7671 B12T14 = PRIO34
050901,000268: 7717 4674 NEGMAX = BIT15
050902,000269: 7717 4674 VLOADCOD = BIT15
050903,000270: 7717 6056 VLOAD* = OCT40001
050904,000271: 7717 4105 OCT60000 = RELTAB11
050905,000272: 7717 4364 BANKMASK = HI5
050906,000273:
End of include-file FIXED_FIXED_CONSTANT_POOL.agc. Parent file is MAIN.agc