Source Code
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These source-code files are part of a reconstructed copy of Comanche 67, the
Apollo Guidance Computer (AGC) Command Module (CM) software for Apollo 12.
They have been adapted from sources files for Comanche 55, and updated via
disassembly of binary dumps of original core rope memory modules, part numbers
2003972-1081, 2003972-1091, 2003972-1111, 2003972-1121, 2003972-1131, and 2003972-1141.
Since only binary dumps (rather than listings) of Comanche 67 are available as source material,
all comments and labels are approximate.
They have been taken from other AGC programs where possible, or, in some places, written
from scratch to match what we believe would have been in the original listing.
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059944,000002: ## Copyright: Public domain.
059945,000003: ## Filename: KEYRUPT,_UPRUPT.agc
059946,000004: ## Purpose: A section of Comanche revision 067.
059947,000005: ## It is part of the reconstructed source code for the flight
059948,000006: ## software for the Command Module's (CM) Apollo Guidance Computer
059949,000007: ## (AGC) for Apollo 12. No original listings of this program are
059950,000008: ## available; instead, this file was created via dissassembly of
059951,000009: ## dumps of Comanche 067 core rope modules and comparison with
059952,000010: ## other AGC programs.
059953,000011: ## Assembler: yaYUL
059954,000012: ## Contact: Ron Burkey <info@sandroid.org>.
059955,000013: ## Website: www.ibiblio.org/apollo/index.html
059956,000014: ## Mod history: 2023-08-16 MAS Created from Comanche 055.
059957,000015:
059958,000016: 14,3763 BANK 14
059959,000017: 07,2000 SETLOC KEYRUPT
059960,000018: 07,2000 BANK
059961,000019: 07,3673 COUNT* $$/KEYUP
059962,000020:
059963,000021: 07,3673 54016 KEYRUPT1 TS BANKRUPT
059964,000022: 07,3674 56002 XCH Q
059965,000023: 07,3675 54012 TS QRUPT
059966,000024: 07,3676 04414 TC LODSAMPT # TIME IS SNATCHED IN RUPT FOR NOUN 65.
059967,000025: 07,3677 34362 CAF LOW5
059968,000026: 07,3700 00006 EXTEND
059969,000027: 07,3701 02015 RAND MNKEYIN # CHECK IF KEYS 5M-1M ON
059970,000028: 07,3702 54073 KEYCOM TS RUPTREG4
059971,000029: 07,3703 40101 CS FLAGWRD5
059972,000030: 07,3704 75015 MASK BIT15
059973,000031: 07,3705 26101 ADS FLAGWRD5
059974,000032:
059975,000033: 07,3706 34371 ACCEPTUP CAF CHRPRIO # (NOTE: RUPTREG4 = KEYTEMP1)
059976,000034: 07,3707 05150 TC NOVAC
059977,000035: 07,3710 0777 EBANK= DSPCOUNT
059978,000036: 07,3710 02000 60101 2CADR CHARIN
059979,000037:
059980,000038: 07,3712 30073 CA RUPTREG4
059981,000039: 07,3713 50064 INDEX LOCCTR
059982,000040: 07,3714 54154 TS MPAC # LEAVE 5 BIT KEY CDE IN MPAC FOR CHARIN
059983,000041: 07,3715 05347 TC RESUME
059984,000042:
059985,000043: # UPRUPT PROGRAM
059986,000044:
059987,000045: 07,3716 54016 UPRUPT TS BANKRUPT
059988,000046: 07,3717 56002 XCH Q
059989,000047: 07,3720 54012 TS QRUPT
059990,000048: 07,3721 04414 TC LODSAMPT # TIME IS SNATCHED IN RUPT FOR NOUN 65.
059991,000049: 07,3722 35035 CAF ZERO
059992,000050: 07,3723 56045 XCH INLINK
059993,000051: 07,3724 54073 TS KEYTEMP1
059994,000052: 07,3725 35031 CAF BIT3 # TURN ON UPACT LIGHT
059995,000053: 07,3726 00006 EXTEND # (BIT 3 OF CHANNEL 11)
059996,000054: 07,3727 05011 WOR DSALMOUT
059997,000055: 07,3730 34362 UPRPT1 CAF LOW5 # TEST FOR TRIPLE CHAR REDUNDANCY
059998,000056: 07,3731 70073 MASK KEYTEMP1 # LOW5 OF WORD
059999,000057: 07,3732 56073 XCH KEYTEMP1 # LOW5 INTO KEYTEMP1
060000,000058: 07,3733 00006 EXTEND
060001,000059: 07,3734 75022 MP BIT10 # SHIFT RIGHT 5
060002,000060: 07,3735 54734 TS KEYTEMP2
060003,000061: 07,3736 74362 MASK LOW5 # MID 5
060004,000062: 07,3737 63773 AD HI10
060005,000063: 07,3740 03770 TC UPTEST
060006,000064: 07,3741 35022 CAF BIT10
060007,000065: 07,3742 00006 EXTEND
060008,000066: 07,3743 70734 MP KEYTEMP2 # SHIFT RIGHT 5
060009,000067: 07,3744 74362 MASK LOW5 # HIGH 5
060010,000068: 07,3745 40000 COM
060011,000069: 07,3746 03770 TC UPTEST
060012,000070:
060013,000071: 07,3747 43776 UPOK CS ELRCODE # CODE IS GOOD. IF CODE = 'ERROR RESET',
060014,000072: 07,3750 60073 AD KEYTEMP1 # CLEAR UPLOCKFL (SET BIT4 OF FLAGWRD7 = 0)
060015,000073: 07,3751 00006 EXTEND # IF CODE DOES NOT = 'ERROR RESET', ACCEPT
060016,000074: 07,3752 13760 BZF CLUPLOCK # CODE ONLY IF UPLOCKFL IS CLEAR (=0).
060017,000075:
060018,000076: 07,3753 35030 CAF BIT4 # TEST UPLOCKFL FOR 0 OR 1.
060019,000077: 07,3754 70103 MASK FLAGWRD7
060020,000078: 07,3755 10000 CCS A
060021,000079: 07,3756 05347 TC RESUME # UPLOCKFL = 1
060022,000080: 07,3757 03706 TC ACCEPTUP # UPLOCKFL = 0
060023,000081:
060024,000082: 07,3760 45030 CLUPLOCK CS BIT4 # CLEAR UPLOCKFL (I.E., SET BIT 4 OF
060025,000083: 07,3761 70103 MASK FLAGWRD7 # FLAGWRD7 = 0)
060026,000084: 07,3762 54103 TS FLAGWRD7
060027,000085: 07,3763 03706 TC ACCEPTUP
060028,000086:
060029,000087: # CODE IS BAD
060030,000088: 07,3764 40103 TMFAIL2 CS FLAGWRD7 # LOCK OUT FURTHER UPLINK ACTIVITY
060031,000089: 07,3765 75030 MASK BIT4 # (BY SETTING UPLOCKFL = 1) UNTIL
060032,000090: 07,3766 26103 ADS FLAGWRD7 # 'ERROR RESET' IS SENT VIA UPLINK.
060033,000091: 07,3767 05347 TC RESUME
060034,000092: 07,3770 60073 UPTEST AD KEYTEMP1
060035,000093: 07,3771 10000 CCS A
060036,000094: 07,3772 03764 TC TMFAIL2
060037,000095: 07,3773 77740 HI10 OCT 77740
060038,000096: 07,3774 03764 TC TMFAIL2
060039,000097: 07,3775 00002 TC Q
060040,000098:
060041,000099: 07,3776 00022 ELRCODE OCT 22
060042,000100:
060043,000101: # 'UPLINK ACTIVITY LIGHT' IS TURNED OFF BY .....
060044,000102: # 1. VBRELDSP
060045,000103: # 2. ERROR RESET
060046,000104: # 3. UPDATE PROGRAM (P27) ENTERED BY V70,V71,V72, AND V73.
060047,000105:
060048,000106: # -
060049,000107: # THE RECEPTION OF A BAD CODE (I.E CCC FAILURE) LOCKS OUT FURTHER UPLINK ACTIVITY BY SETTING BIT4 OF FLAGWRD7 = 1.
060050,000108: # THIS INDICATION WILL BE TRANSFERRED TO THE GROUND BY THE DOWNLINK WHICH DOWNLINKS ALL FLAGWORDS.
060051,000109: # WHEN UPLINK ACTIVITY IS LOCKED OUT, IT CAN BE ALLOWED WHEN THE GROUND UPLINKS AND 'ERROR RESET' CODE.
060052,000110: # (IT IS RECOMMENDED THAT THE 'ERROR LIGHT RESET' CODE IS PRECEEDED BY 16 BITS THE FIRST OF WHICH IS 1 FOLLOWED
060053,000111: # BY 15 ZEROES. THIS WILL ELIMINATE EXTRANEOUS BITS FROM INLINK WHICH MAY HAVE BEEN LEFT OVER FROM THE ORIGINAL
060054,000112: # FAILURE)
060055,000113:
060056,000114: # UPLINK ACTIVITY IS ALSO ALLOWED (UNLOCKED) DURING FRESH START WHEN FRESH START SETS BIT4 OF FLAGWRD7 = 0.
060057,000115:
060058,000116:
End of include-file KEYRUPT,_UPRUPT.agc. Parent file is MAIN.agc