Source Code
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These source-code files were obtained by digitally photographing the
Colossus 237 program listing from the private collection of original
AGC developer Fred Martin, and then modifying pre-existing Colossus 249
(Apollo 9) source files to incorporate changes. 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, 1968 |
040711,000002: # Copyright: Public domain.
040712,000003: # Filename: TVCSTROKETEST.agc
040713,000004: # Purpose: Part of the source code for Colossus build 237.
040714,000005: # This is for the Command Module's (CM) Apollo Guidance
040715,000006: # Computer (AGC), we believe for Apollo 8.
040716,000007: # Assembler: yaYUL
040717,000008: # Contact: Jim Lawton <jim DOT lawton AT gmail DOT com>
040718,000009: # Website: www.ibiblio.org/apollo/index.html
040719,000010: # Page scans: www.ibiblio.org/apollo/ScansForConversion/Colossus237/
040720,000011: # Mod history: 2011-03-12 JL Adapted from corresponding Colossus 249 file.
040721,000012:
040722,000013: # # Page 940
040723,000014: # NAME STROKE TEST PACKAGE (INCLUDING INITIALIZATION PACKAGE)
040724,000015: # ORIGINAL CODING BY OLSSON LOG SECTION....STROKE TEST PACKAGE
040725,000016: # MOD BY ENGEL DATE....21 MARCH, 1967
040726,000017:
040727,000018: # FUNCTIONAL DESCRIPTION....
040728,000019: # STROKE TEST PACKAGE GENERATES A WAVEFORM DESIGNED TO EXCITE BENDING
040729,000020: # STRKTSTI (STROKE TEST INITIALIZATION) IS CALLED AS A JOB BY VB68.
040730,000021: # IT INITIALIZES ALL ERASABLES REQD FOR A STROKE TEST, AND
040731,000022: # THEN TESTS FOR AN 80MS DAP. IF 80MS IT SETS STROKER = ESTROKER
040732,000023: # FOR AN IMMEDIATE STROKE TEST, OTEHRWISE IT MERELY ENABLES
040733,000024: # A STROKE TEST BY SETTING STROKER TO -0. THE STROKE TEST
040734,000025: # THEN AWAITS SWITCHOVER TO THE 80MS DAP WHEREUPON IT IS
040735,000026: # ENABLED AFTER AN ADDITIONAL 4 SECOND DELAY TO AVOID
040736,000027: # THE SWITCHOVER TRANSIENTS (SEE STRKCALL, STRKUP IN
040737,000028: # TVCEXECUTIVE)
040738,000029: # HACK (STROKE TEST) GENERATES THE WAVEFORM BY DUMPING PULSE BURSTS
040739,000030: # OF PROPER SIGN AND IN PROPER SEQUENCE DIRECTLY INTO
040740,000031: # TVCPITCH, WORKING IN CONJUNCITON WITH BOTH PITCH AND YAW
040741,000032: # TVC DAPS, WITH INTERMEDIAT WAITLIST CALLS. NOTE, HOWEVER
040742,000033: # THAT THE STROKE TEST IS PERFORMED ONLY IN THE PITCH AXIS.
040743,000034: # AN EXAMPLE WAVEFORM IS GIVEN BELOW, TO DEMONSTRATE STROKE-
040744,000035: # TEST PARAMETER SELECTION
040745,000036: # RESTARTS CAUSE TEST TO BE TERMINATED. ANOTHER V68 REQD IF TEST
040746,000037: # IS TO BE RE-RUN.
040747,000038: # PULSE BURST SIZE IS PAD-LOADED (ESTROKER) SO THAT AMPLITUDE OF
040748,000039: # WAVEFORM CAN BE CHANGED. THERE ARE TEN PULSE BURSTS IN
040749,000040: # THE HALF-AMPLITUDE OF THE FIRST FREQUENCY SET IN THE
040750,000041: # STANDARD WAVEFORM. AMPLITUDE IS 10(ESTROKER)(1/42.15),
040751,000042: # NOMINALLY 50/42.15 = 1.185 DEG
040752,000043: # CALLING SEQUENCE....
040753,000044: # EXTENDED VERB 68 SETS UP STRKTSTI JOB
040754,000045: # PITCH AND YAW TVCDAPS, FINDING STROKER NON-ZERO, DO A ..TC HACK..
040755,000046: # AN INTERNALLY-GENERATED WAITLIST CALL ENTERS AT ..HACKWLST..
040756,000047: # NORMAL EXIT MODES....
040757,000048: # TC BUNKER (..Q.. IF ENTRY FROM DAP, ..TCTSKOVR.. IF FROM WAITLIST)LIST
040758,000049: # SUBROUTINES CALLED....
040759,000050: # WAITLIST
040760,000051: # ALARM OR ABORT EXIT MODES....
040761,000052: # NONE
040762,000053: # ERASABLE INITIALIZATION REQUIRED....
040763,000054: # ESTROKER (PAD-LOAD)
040764,000055: # STROKER, CADDY, REVS, CARD, N
040765,000056: # OUTPUT....
040766,000057: # STRKTSTI...INITIALIZATION FOR STROKE TEST
040767,000058: # HACK, HACKWLST...PULSE BURSTS INTO TVCPITCH VIA..ADS..
040768,000059: # RESETS STROKER = +0 WHEN TEST COMPLETED
040769,000060: # DEBRIS....
040770,000061: # N = CADDY = +0, CARD = -0, REVS = -1
040771,000062: # BUNKER
040772,000063:
040773,000064: # # Page 941
040774,000065: # EXAMPLE STROKE TEST WAVE FORM, DEMONSTRATING PARAMETER SELECTION
040775,000066:
040776,000067:
040777,000068: # NOTE....THIS IS NOT THE OFFICIAL WAVEFORM....
040778,000069:
040779,000070:
040780,000071: # ** **
040781,000072: # ** **
040782,000073: # ** ** EXAMPLE WAVEFORM (EACH * REPRESENTS
040783,000074: # * * * * 85.41 ARCSEC OF ACTUATOR CMND)
040784,000075: # * * * *
040785,000076: # * * * *
040786,000077: # * * * * ** ** ** ** **
040787,000078: # * * * * ** ** ** ** **
040788,000079: # * * * * ** ** ** ** **
040789,000080: # * * * * * * * * * * * * * * ** ** ** ** **
040790,000081: # * * * * * * * * * * * * * * ** ** ** ** **
040791,000082: # * * * * * * * * * * * * * * ** ** ** ** **
040792,000083: # -----------------------------------------------------------------------------------------------------
040793,000084: # * * * * * * * * * * * * * * ** ** ** ** **
040794,000085: # * * * * * * * * * * * * * * ** ** ** ** **
040795,000086: # * * * * * * * * * * * * * * ** ** ** ** **
040796,000087: # * * * * ** ** ** ** **
040797,000088: # * * * * ** ** ** ** **
040798,000089: # * * * * ** ** ** ** **
040799,000090: # * * * *
040800,000091: # * * * *
040801,000092: # * * * *
040802,000093: # ** **
040803,000094: # ** **
040804,000095: # ** **
040805,000096:
040806,000097:
040807,000098: # FOR THIS (UNOFFICIAL, EXAMPLE) WAVEFORM, THE REQUIRED PARAMETERS ARE AS FOLLOWS....
040808,000099:
040809,000100: # FCARD = +3 (NUMBER OF SETS)
040810,000101: # ESTROKER = +3 (PULSE BURST SIZE, SC.AT 85.41 ARCSEC/BIT)
040811,000102:
040812,000103: # SET1..
040813,000104: # FREVS = +3 (NUMBER REVERSALS MINUS 1)
040814,000105: # FCADDY = +4 (NUMBER OF PULSE BURSTS IN 1/2 AMPLITUDE)
040815,000106: # SET2..
040816,000107: # FCARD1 = +9 (NUMBER REVERSALS MINUS 1)
040817,000108: # FCARD4 = +2 (NUMBER OF PULSE BURSTS IN 1/2 AMPLITUDE)
040818,000109: # SET3..
040819,000110: # FCARD2 = +9 (NUMBER REVERSALS MINUS 1)
040820,000111: # FCARD5 = +1 (NUMBER OF PULSE BURSTS IN 1/2 AMPLITUDE)
040821,000112: # SET4..
040822,000113: # FCARD3 = +0 (NUMBER OF REVERSALS MINUS 1)
040823,000114: # FCARD6 = +0 (NUMBER OF PULSE BURSTS IN 1/2 AMPLUTUDE)
040824,000115:
040825,000116: # # Page 942
040826,000117: # STROKE TEST INITIALIZATION PACKAGE (AS A JOB, FROM VERB 68)
040827,000118:
040828,000119: 17,2215 BANK 17
040829,000120: 20,2000 SETLOC DAPS2
040830,000121: 20,2000 BANK
040831,000122:
040832,000123: 20,3431 COUNT* $$/STRK
040833,000124: 20,3431 E6,1665 EBANK= CADDY
040834,000125:
040835,000126: 20,3431 03450 STRKTSTI TCR TSTINIT # STROKE TEST INITIALIZATION PKG (CALLED
040836,000127: # AS A JOB BY VERB68)
040837,000128:
040838,000129: 20,3432 00004 TVCDTCHK INHINT # STROKE TEST PERMITTED ONLY WITH 80MS DAP
040839,000130: 20,3433 31635 CAE T5TVCDT # CHECK CURRENT TIMING
040840,000131: 20,3434 54001 TS L
040841,000132: 20,3435 37677 CAF OCT37774 # LOOK FOR 80MS (T5)
040842,000133: 20,3436 00006 EXTEND
040843,000134: 20,3437 06001 RXOR LCHAN # +0 IF 80MS
040844,000135: 20,3440 10000 CCS A
040845,000136: 20,3441 13445 TCF +4 # NOT 80MS
040846,000137:
040847,000138: 20,3442 31412 CAE ESTROKER # 80MS. OK, SET STROKER FOR TEST
040848,000139: 20,3443 55614 TS STROKER
040849,000140: 20,3444 13447 TCF +3
040850,000141:
040851,000142: 20,3445 44714 CS ZERO # ENABLE, BUT DO NOT ACTIVATE STROKE
040852,000143: 20,3446 55614 TS STROKER # TEST, AWAITING SWITCHOVER
040853,000144: # TO MOD0R (MOD80)
040854,000145: 20,3447 15112 TCF ENDOFJOB
040855,000146:
040856,000147:
040857,000148: 20,3450 43460 TSTINIT CS FCADDY # NORMAL ENTRY FROM STRKTSTI
040858,000149: 20,3451 55665 TS CADDY
040859,000150: 20,3452 55666 TS N # NOTE SGN CHNG FCADDY(+) TO CADDY(-)
040860,000151:
040861,000152: 20,3453 33461 CAF FREVS
040862,000153: 20,3454 55670 TS REVS
040863,000154:
040864,000155: 20,3455 43462 CS FCARD # NOTE SGN CHNG FCARD(+) TO CARD(-)
040865,000156: 20,3456 55671 TS CARD
040866,000157:
040867,000158: 20,3457 00002 TC Q # RETURN TO STRKTSTI+1 (OR CHKSTRK+2OR+4)
040868,000159:
040869,000160: # # Page 943
040870,000161: # THE OFFICIAL STROKE TEST WAVEFORM (3 JAN, 1967) CONSISTS OF FOUR STROKE SETS, AS FOLLOWS....
040871,000162:
040872,000163: # SET 1...10 BURSTS IN 1/2 AMP, 4 REVERSALS
040873,000164: # SET 2... 6 BURSTS IN 1/2 AMP, 6 REVERSALS
040874,000165: # SET 3... 5 BURSTS IN 1/2 AMP, 10 REVERSALS
040875,000166: # SET 4... 4 BURSTS IN 1/2 AMP, 14 REVERSALS
040876,000167: # THE PULSE BURST SIZE (ESTROKER) IS PAD-LOADED (5 BITS AS OF 3JAN,1967)
040877,000168: # THE REMAINING WAVEFORM-GENERATING PARAMETERS ARE AS FOLLOWS....
040878,000169:
040879,000170: 20,3460 00012 FCADDY DEC 10 B-14 # NO. PULSE BURSTS IN 1/2 AMP, SET1..(+10)
040880,000171: 20,3461 00003 FREVS DEC 3 B-14 # NO. REVERSALS MINUS 1, SET1........( 3)
040881,000172:
040882,000173: 20,3462 00004 FCARD DEC 4 B-14 # NO. STROKE SETS....................(+ 4)
040883,000174:
040884,000175: 20,3463 00005 FCARD1 DEC 5 B-14 # NO. REVERSALS MINUS 1, SET2........( 5)
040885,000176:
040886,000177: 20,3464 00011 FCARD2 DEC 9 B-14 # 3........( 9)
040887,000178: 20,3465 00015 FCARD3 DEC 13 B-14 # 4........( 13)
040888,000179:
040889,000180: 20,3466 00006 FCARD4 DEC 6 B-14 # NO. PULSE BURSTS IN 1/2 AMP, SET2..(+ 6)
040890,000181: 20,3467 00005 FCARD5 DEC 5 B-14 # SET3..(+ 5)
040891,000182: 20,3470 00004 FCARD6 DEC 4 B-14 # SET4..(+ 4)
040892,000183:
040893,000184: 20,3471 4711 20MS = BIT2
040894,000185:
040895,000186:
040896,000187: # STROKE TEST PACKAGE PROPER....
040897,000188:
040898,000189: 20,3471 E6,1667 EBANK= BUNKER
040899,000190:
040900,000191: 20,3471 00006 HACK EXTEND # ENTRY (IN T5 RUPT) FROM TVCDAPS
040901,000192: 20,3472 23667 QXCH BUNKER # SAVE Q FOR DAP RETURN
040902,000193:
040903,000194: 20,3473 34711 CAF 20MS # 2DAPSx2(PASSES/DAP)x2(CS/PASS)=8CS=TVCDT
040904,000195: 20,3474 05140 TC WAITLIST
040905,000196: 20,3475 E6,1667 EBANK= BUNKER
040906,000197: 20,3475 03500 40066 2CADR HACKWLST
040907,000198: 20,3477 13502 TCF +3
040908,000199:
040909,000200: 20,3500 34367 HACKWLST CAF TCTSKOVR # ENTRY FROM WAITLIST
040910,000201: 20,3501 55667 TS BUNKER # BUNKER IS TC TASKOVER
040911,000202:
040912,000203: 20,3502 31614 CA STROKER # STROKE
040913,000204: 20,3503 26054 ADS TVCPITCH
040914,000205:
040915,000206: 20,3504 34700 CAF BIT11 # RELEASE THE ERROR COUNTERS
040916,000207: 20,3505 00006 EXTEND
040917,000208: 20,3506 05014 WOR CHAN14
040918,000209: 20,3507 25665 INCR CADDY # COUNT DOWN THE NO. BURSTS, THIS SLOPE
040919,000210: # # Page 944
040920,000211: 20,3510 41665 CS CADDY
040921,000212: 20,3511 00006 EXTEND
040922,000213: 20,3512 63514 BZMF +2
040923,000214: 20,3513 01667 TC BUNKER # EXIT, WHILE ON A SLOPE
040924,000215:
040925,000216:
040926,000217: 20,3514 11670 CCS REVS
040927,000218: 20,3515 13535 TCF REVUP # POSITIVE REVS
040928,000219: 20,3516 13541 TCF REVUP +4 # FINAL REVERSAL, THE SET
040929,000220:
040930,000221: 20,3517 25671 INCR CARD # NEGATIVE REVS SET LAST PASS, READY FOR
040931,000222: 20,3520 41671 CS CARD # THE NEXT SET. CHECK IF NO MORE SETS
040932,000223: 20,3521 00006 EXTEND
040933,000224: 20,3522 13533 BZF STROKILL # ALL SETS COMPLETED
040934,000225:
040935,000226: 20,3523 51671 INDEX CARD
040936,000227: 20,3524 33466 CAF FCARD +4 # PICK UP NO. REVERSALS (-), NEXT SET
040937,000228: 20,3525 55670 TS REVS # REINITIALIZE
040938,000229: 20,3526 51671 INDEX CARD
040939,000230: 20,3527 43471 CS FCARD +7 # PICK UP NO. BURSTS IN 1/2AMP, NEXT SET
040940,000231: 20,3530 55666 TS N # REINITIALIZE
040941,000232: 20,3531 55665 TS CADDY
040942,000233: 20,3532 01667 TC BUNKER # EXIT, AT END OF SET
040943,000234:
040944,000235:
040945,000236: 20,3533 55614 STROKILL TS STROKER # RESET (TO +0) TO END TEST
040946,000237: 20,3534 01667 TC BUNKER # EXIT, STROKE TEST FINIS
040947,000238:
040948,000239:
040949,000240: 20,3535 55670 REVUP TS REVS # ALL REVERSALS EXCEPT LAST OF SET
040950,000241: 20,3536 31666 CA N
040951,000242: 20,3537 60000 DOUBLE # 2 x 1/2AMP
040952,000243: 20,3540 13544 TCF +4
040953,000244:
040954,000245: 20,3541 44712 +4 CS ONE # FINAL REVERSAL, THIS SET
040955,000246: 20,3542 55670 TS REVS # PREPARE TO BRANCH TO NEW BURST
040956,000247: 20,3543 31666 CA N # JUST RETURN TO ZERO, FINAL SLOPE OF SET
040957,000248: 20,3544 55665 TS CADDY # CADUP
040958,000249:
040959,000250: 20,3545 41614 CS STROKER # CHANGE SIGN OF SLOPE
040960,000251: 20,3546 55614 TS STROKER
040961,000252: 20,3547 01667 TC BUNKER # EXIT AT A REVERSAL (SLOPE CHANGE)
End of include-file TVCSTROKETEST.agc. Parent file is MAIN.agc