GAP: ASSEMBLE REVISION 237 OF AGC PROGRAM COLOSSUS BY NASA 2021111-031 1:17 AUG. 24, 1968Note that the date is the date of the printout, not the date of the program revision.
Source Code
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These source-code files were derived from scans of the
Colossus 237 (Apollo 8 Command Module) program listing from the private collection of original
AGC developer Fred Martin. Scanning was by Ron Burkey. Pre-existing Colossus 249
(Apollo 9 CM) source files were used as a template, and changes between Colossus 249
and Colossus 237 were manually transcribed by a team of volunteers. 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, 1968Note that the date is the date of the printout, not the date of the program revision. |
018075,000002: ## Copyright: Public domain.
018076,000003: ## Filename: SYSTEM_TEST_STANDARD_LEAD_INS.agc
018077,000004: ## Purpose: Part of the source code for Colossus build 237.
018078,000005: ## This is for the Command Module's (CM) Apollo Guidance
018079,000006: ## Computer (AGC), for Apollo 8.
018080,000007: ## Assembler: yaYUL
018081,000008: ## Contact: Jim Lawton <jim DOT lawton AT gmail DOT com>
018082,000009: ## Website: www.ibiblio.org/apollo/index.html
018083,000010: ## Page Scans: www.ibiblio.org/apollo/ScansForConversion/Colossus237/
018084,000011: ## Mod history: 2011-01-27 JL Adapted from corresponding Colossus 249 file.
018085,000012: ## 2016-12-30 RSB Proofed comment text using octopus/ProoferComments,
018086,000013: ## and corrected errors found.
018087,000014: ## 2017-01-20 RSB Fixed comment-text errors noted while diff'ing
018088,000015: ## vs Colossus 249.
018089,000016:
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Page 411 |
018091,000018: 22,3310 E5,1671 EBANK= XSM
018092,000019:
018093,000020: 33,2000 BANK 33
018094,000021: 04,2000 SETLOC E/PROG
018095,000022: 04,2000 BANK
018096,000023:
018097,000024: 04,2557 COUNT* $$/P07
018098,000025:
018099,000026: # SPECIAL PROGRAMS TO EASE THE PANGS OF ERASABLE MEMORY PROGRAMS.
018100,000027:
018101,000028: # E/BKCALL FOR DOING BANKCALLS FROM AND RETURNING TO ERASABLE.
018102,000029:
018103,000030: # THIS ROUTINE IS CALLABLE FROM ERASABLE OR FIXED. LIKE BANKCALL, HOWEVER, SWITCHING BETWEEN S3 AND S4
018104,000031: # IS NOT POSSIBLE.
018105,000032:
018106,000033: # THE CALLING SEQUENCE IS:
018107,000034:
018108,000035: # TC BANKCALL
018109,000036: # CADR E/BKCALL
018110,000037: # CADR ROUTINE WHERE YOU WANT TO GO IN FIXED.
018111,000038: # RETURN HERE FROM DISPLAY TERMINATE, BAD STALL OR TC Q.
018112,000039: # RETURN HERE FROM DISPLAY PROCEED OR GOOD RETURN FROM STALL.
018113,000040: # RETURN HERE FROM DISPLAY ENTER OR RECYCLE.
018114,000041:
018115,000042: # THIS ROUTINE REQUIRES TWO ERASABLES (EBUF2, +1) IN UNSWITCHED WHICH ARE UNSHARED BY INTERRUPTS AND
018116,000043: # OTHER EMEMORY PROGRAMS.
018117,000044:
018118,000045: # A + L ARE PRESERVED THROUGH BANKCALL AND E/BKCALL.
018119,000046:
018120,000047: 04,2557 52134 E/BKCALL DXCH BUF2 # SAVE A,L AND GET DP RETURN.
018121,000048: 04,2560 52365 DXCH EBUF2 # SAVE DP RETURN.
018122,000049: 04,2561 24364 INCR EBUF2 # RETURN +1 BECAUSE DOUBLE CADR.
018123,000050: 04,2562 30006 CA BBANK
018124,000051: 04,2563 74747 MASK LOW10 # GET CURRENT EBANK. (SBANK SOMEDAY)
018125,000052: 04,2564 26365 ADS EBUF2 +1 # FORM BBCON. (WAS FBANK)
018126,000053: 04,2565 50364 NDX EBUF2
018127,000054: 04,2566 27777 CA 0 -1 # GET CADR OF ROUTINE.
018128,000055: 04,2567 04561 TC SWCALL # GO TO ROUTINE, SETTING Q TO SWRETURN
018129,000056: # AND RESTORING A + L.
018130,000057: 04,2570 02574 TC +4 # TX Q, V34, OR BAD STALL RETURN.
018131,000058: 04,2571 02573 TC +2 # PROCEED OR GOOD STALL RETURN.
018132,000059: 04,2572 24364 INCR EBUF2 # ENTER OR RECYCLE RETURN.
018133,000060: 04,2573 24364 INCR EBUF2
018134,000061: 04,2574 52365 E/SWITCH DXCH EBUF2
018135,000062: 04,2575 52006 DTCB
018136,000063:
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018138,000065: # E/CALL FOR CALLING A FIXED MEMORY INTERPRETIVE SUBROUTINE FROM ERASABLE AND RETURNING TO ERASABLE.
018139,000066:
018140,000067: # THE CALLING SEQUENCE IS...
018141,000068: # RTB
018142,000069: # E/CALL
018143,000070: # CADR ROUTINE THE INTERPRETIVE SUBROUTINE YOU WANT.
018144,000071: # RETURNS HERE IN INTERPRETIVE.
018145,000072:
018146,000073: 04,2576 22164 E/CALL LXCH LOC # ADRES -1 OF CADR.
018147,000074: 04,2577 50001 INDEX L
018148,000075: 04,2600 30001 CA L # CADR IN A.
018149,000076: 04,2601 24001 INCR L
018150,000077: 04,2602 24001 INCR L # RETURN ADRES IN L.
018151,000078: 04,2603 52365 DXCH EBUF2 # STORE CADR AND RETURN.
018152,000079: 04,2604 06006 TC INTPRET
018153,000080: 04,2605 77624 CALL
018154,000081: 04,2606 00364 EBUF2 # INDIRECTLY EXECUTE ROUTINE. IT MUST
018155,000082: 04,2607 77776 EXIT # LEAVE VIA RVQ OR EQUIVALENT.
018156,000083: 04,2610 22365 LXCH EBUF2 +1 # PICK UP RETURN.
018157,000084: 04,2611 16010 TCF INTPRET +2 # SET LOC AND RETURB TO CALLER
018158,000085:
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018160,000087: # E/JOBWAK FOR WAKING UP ERASABLE MEMORY JOBS.
018161,000088:
018162,000089: # THIS ROUTINE MUST BE CALLED IN INTERRUPT OR WITH INTERRUPTS INHIBITED.
018163,000090:
018164,000091: # THE CALLING SEQUENCE IS:
018165,000092:
018166,000093: # INHINT
018167,000094: # .
018168,000095: # .
018169,000096: # CA WAKEADR ADDRESS OF SLEEPING JOB
018170,000097: # TC IBNKCALL
018171,000098: # CADR E/JOBWAK
018172,000099: # . RETURNS HERE
018173,000100: # .
018174,000101: # .
018175,000102: # RELINT IF YOU DID AN INHINT.
018176,000103:
018177,000104: 33,2000 BANK 33
018178,000105: 04,2000 SETLOC E/PROG
018179,000106: 04,2000 BANK
018180,000107:
018181,000108: 04,2612 COUNT* $$/P07
018182,000109:
018183,000110: 04,2612 05074 E/JOBWAK TC JOBWAKE # ARRIVE IWTH ADRES IN A.
018184,000111: 04,2613 44700 CS BIT11
018185,000112: 04,2614 50064 NDX LOCCTR
018186,000113: 04,2615 26164 ADS LOC # KNOCK FIXED MEMORY BIT OUT OF ADRES.
018187,000114: 04,2616 00072 TC RUPTREG3 # RETURN
018188,000115:
018189,000116:
018190,000117: # THESE PROGRAMS ARE PROVIDED TO ALLOW OVERLAY OF BANKS 30 THRU 33 OF THE 205 VERSIONS OF SYSTEM TESTS AND
018191,000118: # PRELAUNCH ALIGN. THE INTENT IS TO ALLOW THE STG AND HYBRID LABS TO RUN ALL THE TESTS WITH COLOSSUS.
018192,000119:
018193,000120:
018194,000121: 33,2000 BANK 33
018195,000122: 33,2000 SETLOC TESTLEAD
018196,000123: 33,2000 BANK
018197,000124:
018198,000125: 33,2000 COUNT 33/COMST
018199,000126:
018200,000127: 33,2000 E5,1425 EBANK= QPLACE
018201,000128:
018202,000129: 33,2000 03426 COMPVER TC GCOMPVER # MUST BE 33,2000.
018203,000130:
018204,000131: 33,2001 03133 GTSCPSS1 TC GTSCPSS # MUST BE AT 33,2001
018205,000132:
018206,000133: 33,2002 05243 REDO TC NEWMODEX # DISPLAY MM 07.
018207,000134: 33,2003 00007 MM 07 B-14 # FALL INTO IMUTEST
End of include-file SYSTEM_TEST_STANDARD_LEAD_INS.agc. Parent file is MAIN.agc