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. 28,1968Note that the date is the date of the printout, not the date of the program revision. |
056945,000002: ## Copyright: Public domain.
056946,000003: ## Filename: KEYRUPT_UPRUPT.agc
056947,000004: ## Purpose: Part of the source code for Luminary 1A build 099.
056948,000005: ## It is part of the source code for the Lunar Module's (LM)
056949,000006: ## Apollo Guidance Computer (AGC), for Apollo 11.
056950,000007: ## Assembler: yaYUL
056951,000008: ## Contact: Ron Burkey <info@sandroid.org>.
056952,000009: ## Website: www.ibiblio.org/apollo.
056953,000010: ## Pages: 1338-1340
056954,000011: ## Mod history: 2009-05-27 RSB Adapted from the corresponding
056955,000012: ## Luminary131 file, using page
056956,000013: ## images from Luminary 1A.
056957,000014: ##
056958,000015: ## This source code has been transcribed or otherwise adapted from
056959,000016: ## digitized images of a hardcopy from the MIT Museum. The digitization
056960,000017: ## was performed by Paul Fjeld, and arranged for by Deborah Douglas of
056961,000018: ## the Museum. Many thanks to both. The images (with suitable reduction
056962,000019: ## in storage size and consequent reduction in image quality as well) are
056963,000020: ## available online at www.ibiblio.org/apollo. If for some reason you
056964,000021: ## find that the images are illegible, contact me at info@sandroid.org
056965,000022: ## about getting access to the (much) higher-quality images which Paul
056966,000023: ## actually created.
056967,000024: ##
056968,000025: ## Notations on the hardcopy document read, in part:
056969,000026: ##
056970,000027: ## Assemble revision 001 of AGC program LMY99 by NASA 2021112-61
056971,000028: ## 16:27 JULY 14, 1969
056972,000029:
Page 1338 |
056974,000031: 14,3774 BANK 14
056975,000032: 04,2000 SETLOC KEYRUPT
056976,000033: 04,2000 BANK
056977,000034: 04,3274 COUNT* $$/KEYUP
056978,000035:
056979,000036: 04,3274 54016 KEYRUPT1 TS BANKRUPT
056980,000037: 04,3275 56002 XCH Q
056981,000038: 04,3276 54012 TS QRUPT
056982,000039: 04,3277 04400 TC LODSAMPT # TIME IS SNATCHED IN RUPT FOR NOUN 65.
056983,000040: 04,3300 34346 CAF LOW5
056984,000041: 04,3301 00006 EXTEND
056985,000042: 04,3302 02015 RAND MNKEYIN # CHECK IF KEYS 5M-1M ON
056986,000043: 04,3303 54073 KEYCOM TS RUPTREG4
056987,000044: 04,3304 40101 CS FLAGWRD5
056988,000045: 04,3305 74735 MASK DSKYFBIT
056989,000046: 04,3306 26101 ADS FLAGWRD5
056990,000047:
056991,000048: 04,3307 34355 ACCEPTUP CAF CHRPRIO # (NOTE: RUPTREG4 = KEYTEMP1)
056992,000049: 04,3310 05072 TC NOVAC
056993,000050: 04,3311 0777 EBANK= DSPCOUNT
056994,000051: 04,3311 02077 60101 2CADR CHARIN
056995,000052:
056996,000053: 04,3313 30073 CA RUPTREG4
056997,000054: 04,3314 50064 INDEX LOCCTR
056998,000055: 04,3315 54154 TS MPAC # LEAVE 5 BIT KEY CODE IN MPAC FOR CHARIN
056999,000056: 04,3316 05270 TC RESUME
057000,000057:
Page 1339 |
057002,000059: # UPRUPT PROGRAM
057003,000060:
057004,000061: 04,3317 54016 UPRUPT TS BANKRUPT
057005,000062: 04,3320 56002 XCH Q
057006,000063: 04,3321 54012 TS QRUPT
057007,000064: 04,3322 04400 TC LODSAMPT # TIME IS SNATCHED IN RUPT FOR NOUN 65.
057008,000065: 04,3323 34755 CAF ZERO
057009,000066: 04,3324 56045 XCH INLINK
057010,000067: 04,3325 54073 TS KEYTEMP1
057011,000068: 04,3326 34751 CAF BIT3 # TURN ON UPACT LIGHT
057012,000069: 04,3327 00006 EXTEND # (BIT 3 OF CHANNEL 11)
057013,000070: 04,3330 05011 WOR DSALMOUT
057014,000071: 04,3331 34346 UPRPT1 CAF LOW5 # TEST FOR TRIPLE CHAR REDUNDANCY
057015,000072: 04,3332 70073 MASK KEYTEMP1 # LOW5 OF WORD
057016,000073: 04,3333 56073 XCH KEYTEMP1 # LOW5 INTO KEYTEMP1
057017,000074: 04,3334 00006 EXTEND
057018,000075: 04,3335 74742 MP BIT10 # SHIFT RIGHT 5
057019,000076: 04,3336 54734 TS KEYTEMP2
057020,000077: 04,3337 74346 MASK LOW5 # MID 5
057021,000078: 04,3340 63374 AD HI10
057022,000079: 04,3341 03371 TC UPTEST
057023,000080: 04,3342 34742 CAF BIT10
057024,000081: 04,3343 00006 EXTEND
057025,000082: 04,3344 70734 MP KEYTEMP2 # SHIFT RIGHT 5
057026,000083: 04,3345 74346 MASK LOW5 # HIGH 5
057027,000084: 04,3346 40000 COM
057028,000085: 04,3347 03371 TC UPTEST
057029,000086:
057030,000087: 04,3350 43377 UPCK CS ELRCODE # CODE IS GOOD. IF CODE = `ERROR RESET',
057031,000088: 04,3351 60073 AD KEYTEMP1 # CLEAR UPLOCKFL (SET BIT4 OF FLAGWRD7 = 0)
057032,000089: 04,3352 00006 EXTEND # IF CODE DOES NOT = `ERROR RESET', ACCEPT
057033,000090: 04,3353 13361 BZF CLUPLOCK # CODE ONLY IF UPLOCKFL IS CLEAR (=0).
057034,000091:
057035,000092: 04,3354 34750 CAF UPLOCBIT # TEST UPLOCKFL FOR 0 OR 1
057036,000093: 04,3355 70103 MASK FLAGWRD7
057037,000094: 04,3356 10000 CCS A
057038,000095: 04,3357 05270 TC RESUME # UPLOCKFL = 1
057039,000096: 04,3360 03307 TC ACCEPTUP # UPLOCKFL = 0
057040,000097:
057041,000098: 04,3361 44750 CLUPLOCK CS UPLOCBIT # CLEAR UPLOCKFL (I.E., SET BIT 4 OF
057042,000099: 04,3362 70103 MASK FLAGWRD7 # FLAGWRD7 = 0)
057043,000100: 04,3363 54103 TS FLAGWRD7
057044,000101: 04,3364 03307 TC ACCEPTUP
057045,000102:
057046,000103: # CODE IS BAD
057047,000104: 04,3365 40103 TMFAIL2 CS FLAGWRD7 # LOCK OUT FURTHER UPLINK ACTIVITY
057048,000105: 04,3366 74750 MASK UPLOCBIT # (BY SETTING UPLOCKFL = 1) UNTIL
057049,000106: 04,3367 26103 ADS FLAGWRD7 # `ERROR RESET' IS SENT VIA UPLINK.
057050,000107: 04,3370 05270 TC RESUME
057051,000108: 04,3371 60073 UPTEST AD KEYTEMP1
Page 1340 |
057053,000110: 04,3372 10000 CCS A
057054,000111: 04,3373 03365 TC TMFAIL2
057055,000112: 04,3374 77740 HI10 OCT 77740
057056,000113: 04,3375 03365 TC TMFAIL2
057057,000114: 04,3376 00002 TC Q
057058,000115:
057059,000116: 04,3377 00022 ELRCODE OCT 22
057060,000117:
057061,000118: # `UPLINK ACTIVITY LIGHT' IS TURNED OFF BY .....
057062,000119: # 1. VBRELDSP
057063,000120: # 2. ERROR RESET
057064,000121: # 3. UPDATE PROGRAM (P27) ENTERED BY V70,V71,V72, AND V73.
057065,000122: # _
057066,000123: # THE RECEPTION OF A BAD CODE (I.E., CCC FAILURE) LOCKS OUT FURTHER UPLINK ACTIVITY BY SETTING BIT4 OF FLAGWRD7 = 1.
057067,000124: # THIS INDICATION WILL BE TRANSFERRED TO THE GROUND BY THE DOWNLINK WHICH DOWNLINKS ALL FLAGWORDS.
057068,000125: # WHEN UPLINK ACTIVITY IS LOCKED OUT, IT CAN BE ALLOWED WHEN THE GROUND UPLINKS AND `ERROR RESET' CODE.
057069,000126: # (IT IS RECOMMENDED THAT THE `ERROR LIGHT RESET' CODE IS PRECEEDED BY 16 BITS THE FIRST OF WHICH IS 1 FOLLOWED
057070,000127: # BY 15 ZEROS. THIS WILL ELIMINATE EXTRANEOUS BITS FROM INLINK WHICH MAY HAVE BEEN LEFT OVER FROM THE ORIGINAL
057071,000128: # FAILURE).
057072,000129:
057073,000130: # UPLINK ACTIVITY IS ALSO ALLOWED (UNLOCKED) DURING FRESH START WHEN FRESH START SETS BIT4 OF FLAGWRD7 = 0.
057074,000131:
057075,000132: 04,3400 44753 CS XDSPBIT
057076,000133:
End of include-file KEYRUPT_UPRUPT.agc. Parent file is MAIN.agc