GAP: ASSEMBLE REVISION 131 OF AGC PROGRAM LUMINARY BY NASA 2021112-091 17:53 DEC. 19, 1969Note that the date is the date the printout was made, not the date on which the program revision was released, although these happen to be very close together.
Source Code
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This source code is very close to the Apollo Guidance Computer software for the
Apollo 13 Lunar module. This revision of the Luminary 131 program is from December
of 1969, whereas there was a later revision in January of 1970, and still another
revision in February, which is the code that flew on the mission.
As far as this transcription is concerned, it was originally from a copy made in 1991 of
a printout from the collection of AGC developer Don Eyles for collector David Craig.
It was subsequently scanned by Gary Neff, reprocessed for online
presentation at the now-discontinued History of Recent Science and Technology (HRST) website
of MIT's Dibner Institute (the full-quality scans being discarded in the process),
and finally transcribed by Ron Burkey for the Virtual AGC Project. Although a
high-quality replacement scan for a completely illegible page was later provided by Gary
Neff, the reduced legibility of the reprocessed HRST posting nevertheless caused many
errors to be introduced into the transcription. Accordingly, a second scan of the same physical
printout was made in 2017 for the Virtual AGC Project's collection at the Internet Archive,
and used to correct the transcription errors. All of the scanned materials mentioned,
as well as other Luminary 131 related material, are available online.
Don Eyles apprently made additional hand-written notes in printout between 1991 and 2017,
so the two scans are not identical in that respect. The page-headings in the printout read, in part:GAP: ASSEMBLE REVISION 131 OF AGC PROGRAM LUMINARY BY NASA 2021112-091 17:53 DEC. 19, 1969Note that the date is the date the printout was made, not the date on which the program revision was released, although these happen to be very close together. |
046649,000002: ## Copyright: Public domain.
046650,000003: ## Filename: WAITLIST.agc
046651,000004: ## Purpose: A section of Luminary 1C, revision 131.
046652,000005: ## It is part of the source code for the Lunar Module's (LM)
046653,000006: ## Apollo Guidance Computer (AGC) for Apollo 13.
046654,000007: ## This file is intended to be a faithful transcription, except
046655,000008: ## that the code format has been changed to conform to the
046656,000009: ## requirements of the yaYUL assembler rather than the
046657,000010: ## original YUL assembler.
046658,000011: ## Reference: pp. 1111-1126
046659,000012: ## Contact: Ron Burkey <info@sandroid.org>.
046660,000013: ## Website: www.ibiblio.org/apollo/index.html
046661,000014: ## Mod history: 05/31/03 RSB. Began transcribing.
046662,000015: ## 05/14/05 RSB Corrected website reference above.
046663,000016: ## 2010-10-25 JL Indentation fixes.
046664,000017: ## 2011-05-07 JL Removed workarounds.
046665,000018: ## 2017-01-06 RSB Page numbers now agree with those on the
046666,000019: ## original hardcopy, as opposed to the PDF page
046667,000020: ## numbers in 1701.pdf.
046668,000021: ## 2017-01-28 RSB WTIH -> WITH.
046669,000022: ## 2017-02-09 RSB Comment-text fixes identified in proofing Artemis 72
046670,000023: ## 2017-02-27 RSB Proofed comment text using octopus/ProoferComments.
046671,000024: ## Also corrected WAITP00H and LONGP00H to their POOH
046672,000025: ## equivalents.
046673,000026: ## 2017-03-14 RSB Comment-text fixes noted in proofing Luminary 116.
046674,000027: ## 2017-03-16 RSB Comment-text fixes identified in 5-way
046675,000028: ## side-by-side diff of Luminary 69/99/116/131/210.
046676,000029:
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Page 1111 |
046678,000031: # PROGRAM DESCRIPTION DATE - 10 OCTOBER 1966
046679,000032: # MOD NO - 2 LOG SECTION - WAITLIST
046680,000033: # MOD BY - MILLER (DTMAX INCREASED TO 162.5 SEC) ASSEMBLY SUNBURST REV 5
046681,000034: # MOD 3 BY KERNAN (INHINT INSERTED AT WAITLIST) 2/28/68 SKIPPER REV 4
046682,000035: # MOD 4 BY KERNAN (TWIDDLE IN 54) 3/28/68 SKIPPER REV 13.
046683,000036:
046684,000037: # FUNCTIONAL DESCRIPTION -
046685,000038: # PART OF A SECTION OF PROGRAMS,-WAITLIST, TASKOVER, T3RUPT, USED TO CALL A PROGRAM, (CALLED A TASK),
046686,000039: # WHICH IS TO BEGIN IN C(A) CENTISECONDS. WAITLIST UPDATES TIME3, LST1 AND LST2. THE MEANING OF THESE LISTS
046687,000040: # FOLLOW.
046688,000041:
046689,000042: # C(TIME3) = 16384 -(T1-T) CENTISECONDS, (T=PRESENT TIME, T1-TIME FOR TASK1)
046690,000043:
046691,000044: # C(LST1) = -(T2-T1)+1
046692,000045: # C(LST1 +1) = -(T3-T2)+1
046693,000046: # C(LST1 +2) = -(T4-T3)+1
046694,000047: # .
046695,000048: # .
046696,000049: # C(LST1 +6) = -(T8-T7)+1
046697,000050: # C(LST1 +7) = -(T9-T8)+1
046698,000051:
046699,000052: # C(LST2) = 2CADR OF TASK1
046700,000053: # C(LST2 +2) = 2CADR OF TASK2
046701,000054: # .
046702,000055: # .
046703,000056: # C(LST2 +14) = 2CADR OF TASK8
046704,000057: # C(LST2 +16) = 2CADR OF TASK9
046705,000058:
046706,000059: # WARNINGS -
046707,000060: # --------
046708,000061: # 1) 1 <= C(A) <= 16250D (1 CENTISECOND TO 162.5 SEC)
046709,000062: # 2) 9 TASKS MAXIMUM
046710,000063: # 3) TASKS CALLED UNDER INTERRUPT INHIBITED
046711,000064: # 4) TASKS END BY TC TASKOVER
046712,000065:
046713,000066: # CALLING SEQUENCE -
046714,000067: # L-1 CA DELTAT (TIME IN CENTISECONDS TO TASK START)
046715,000068: # L TC WAITLIST
046716,000069: # L+1 2CADR DESIRED TASK
046717,000070: # L+2 (MINOR OF 2CADR)
046718,000071: # L+3 RELINT (RETURNS HERE)
046719,000072:
046720,000073: # TWIDDLE -
046721,000074: # -------
046722,000075: # TWIDDLE IS FOR USE WHEN THE TASK BEING SET UP IS IN THE SAME EBANK AND FBANK AS THE USER. IN
046723,000076: # SUCH CASES, IT IMPROVES UPON WAITLIST BY ELIMINATING THE NEED FOR THE BBCON HALF OF THE 2CADR,
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Page 1112 |
046725,000078: # SAVING A WORD. TWIDDLE IS LIKE WAITLIST IN EVERY RESPECT EXCEPT CALLING SEQUENCE, TO WIT-
046726,000079: # L-1 CA DELTAT
046727,000080: # L TC TWIDDLE
046728,000081: # L+1 ADRES DESIRED TASK
046729,000082: # L+2 RELINT (RETURNS HERE)
046730,000083:
046731,000084: # NORMAL EXIT MODES -
046732,000085: # AT L+3 OF CALLING SEQUENCE
046733,000086:
046734,000087: # ALARM OR ABORT EXIT MODES -
046735,000088: # TC ABORT
046736,000089: # OCT 1203 (WAITLIST OVERFLOW - TOO MANY TASKS)
046737,000090:
046738,000091: # ERASABLE INITIALIZATION REQUIRED -
046739,000092: # ACCOMPLISHED BY FRESH START,-- LST2, ..., LST2 +16 = ENDTASK
046740,000093: # LST1, ..., LST1 +7 = NEG1/2
046741,000094:
046742,000095: # OUTPUT--
046743,000096: # LST1 AND LST2 UPDATED WITH NEW TASK AND ASSOCIATED TIME.
046744,000097:
046745,000098: # DEBRIS-
046746,000099: # CENTRALS - A,Q,L
046747,000100: # OTHER - WAITEXIT, WAITADR, WAITTEMP, WAITBANK
046748,000101:
046749,000102: # DETAILED ANALYSIS OF TIMING -
046750,000103: # CONTROL WILL NOT BE RETURNED TO THE SPECIFIED ADDRESS (2CADR) IN EXACTLY DELTA T CENTISECONDS.
046751,000104: # THE APPROXIMATE TIME MAY BE CALCULATED AS FOLLOWS
046752,000105: # LET TO = THE TIME OF THE TC WAITLIST
046753,000106: # LET TS = TO +147U + COUNTER INCREMENTS (SET UP TIME)
046754,000107: # LET X = TS -(100TS)/100 (VARIANCE FROM COUNTERS)
046755,000108: # LET Y = LENGTH OF TIME OF INHIBIT INTERRUPT AFTER T3RUPT
046756,000109: # LET Z = LENGTH OF TIME TO PROCESS TASKS WHICH ARE DUE THIS T3RUPT BUT DISPATCHED EARLIER.
046757,000110: # (Z=0, USUALLY)
046758,000111: # LET DELTD = THE ACTUAL TIME TAKEN TO GIVE CONTROL TO 2CADR
046759,000112: # THEN DELTD = TS+DELTA T -X +Y +Z +1.05MS* +COUNTERS*
046760,000113: # *-THE TIME TAKEN BY WAITLIST ITSELF AND THE COUNTER TICKING DURING THIS WAITLIST TIME.
046761,000114:
046762,000115: # IN SHORT, THE ACTUAL TIME TO RETURN CONTROL TO A 2CADR IS AUGMENTED BY THE TIME TO SET UP THE TASK:S
046763,000116: # INTERRUPT, ALL COUNTERS TICKING, THE T3RUPT PROCESSING TIME, THE WAITLIST PROCESSING TIME AND THE POSSIBILITY
046764,000117: # OF OTHER TASKS INHIBITING THE INTERRUPT.
046765,000118:
046766,000119: 5173 BLOCK 02
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Page 1113 |
046768,000121: 5173 E3,1400 EBANK= LST1 # TASK LISTS IN SWITCHED E BANK.
046769,000122:
046770,000123: 5173 COUNT* $$/WAIT
046771,000124: 5173 00004 TWIDDLE INHINT
046772,000125: 5174 54001 TS L # SAVE DELAY TIME IN L
046773,000126: 5175 34733 CA POSMAX
046774,000127: 5176 26002 ADS Q # CREATING OVERFLOW AND Q-1 IN Q
046775,000128: 5177 30006 CA BBANK
046776,000129: 5200 00006 EXTEND
046777,000130: 5201 04007 ROR SUPERBNK
046778,000131: 5202 56001 XCH L
046779,000132:
046780,000133: 5203 00004 WAITLIST INHINT
046781,000134: 5204 56002 XCH Q # SAVE DELTA T IN Q AND RETURN IN
046782,000135: 5205 54061 TS WAITEXIT # WAITEXIT.
046783,000136: 5206 00006 EXTEND
046784,000137: 5207 50061 INDEX WAITEXIT # IF TWIDDLING, THE TS SKIPS TO HERE
046785,000138: 5210 30001 DCA 0 # PICK UP 2CADR OF TASK.
046786,000139: 5211 54063 -1 TS WAITADR # BBCON WILL REMAIN IN L
046787,000140: 5212 35220 DLY2 CAF WAITBB # ENTRY FROM FIXDELAY AND VARDELAY.
046788,000141: 5213 56006 XCH BBANK
046789,000142: 5214 13232 TCF WAIT2
046790,000143:
046791,000144: # RETURN TO CALLER AFTER TASK INSERTION:
046792,000145:
046793,000146: 5215 52062 LVWTLIST DXCH WAITEXIT
046794,000147: 5216 64752 AD TWO
046795,000148: 5217 52006 DTCB
046796,000149:
046797,000150: 5220 E3,1400 EBANK= LST1
046798,000151: 5220 02063 WAITBB BBCON WAIT2
046799,000152:
046800,000153: # RETURN TO CALLER +2 AFTER WAITING DT SPECIFIED AT CALLER +1.
046801,000154:
046802,000155: 5221 50002 FIXDELAY INDEX Q # BOTH ROUTINES MUST BE CALLED UNDER
046803,000156: 5222 30000 CAF 0 # WAITLIST CONTROL AND TERMINATE THE TASK
046804,000157: 5223 24002 INCR Q # IN WHICH THEY WERE CALLED.
046805,000158:
046806,000159: # RETURN TO CALLER +1 AFTER WAITING THE DT AS ARRIVING IN A.
046807,000160:
046808,000161: 5224 56002 VARDELAY XCH Q # DT TO Q. TASK ADRES TO WAITADR.
046809,000162: 5225 54063 TS WAITADR
046810,000163: 5226 30006 CA BBANK # BBANK IS SAVED DURING DELAY.
046811,000164: 5227 00006 EXTEND
046812,000165: 5230 04007 ROR SUPERBNK # ADD SBANK TO BBCON.
046813,000166: 5231 54001 TS L
046814,000167: 5232 35235 CAF DELAYEX
046815,000168: 5233 54061 TS WAITEXIT # GO TO TASKOVER AFTER TASK ENTRY.
046816,000169: 5234 15212 TCF DLY2
046817,000170:
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Page 1114 |
046819,000172: 5235 15257 DELAYEX TCF TASKOVER -2 # RETURNS TO TASKOVER
046820,000173:
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Page 1115 |
046822,000175: # ENDTASK MUST BE ENTERED IN FIXED-FIXED SO IT IS DISTINGUISHABLE BY ITS ADRES ALONE.
046823,000176:
046824,000177: 5236 E3,1400 EBANK= LST1
046825,000178: 5236 72537 73714 ENDTASK -2CADR SVCT3
046826,000179:
046827,000180: 5240 10076 SVCT3 CCS FLAGWRD2 # DRIFT FLAG
046828,000181: 5241 15261 TCF TASKOVER
046829,000182: 5242 15261 TCF TASKOVER
046830,000183: 5243 15244 TCF +1
046831,000184:
046832,000185: 5244 11301 CKIMUSE CCS IMUCADR # DON'T DO NBDONLY IF SOMEONE ELSE IS IN
046833,000186: 5245 15256 TCF SVCT3X # IMUSTALL.
046834,000187: 5246 15251 TCF +3
046835,000188: 5247 15256 TCF SVCT3X
046836,000189: 5250 15256 TCF SVCT3X
046837,000190:
046838,000191: 5251 37726 +3 CAF PRIO35 # COMPENSATE FOR NBD COEFFICIENTS ONLY.
046839,000192: 5252 05072 TC NOVAC # ENABLE EVERY 81.93 SECONDS
046840,000193: 5253 E3,1460 EBANK= NBDX
046841,000194: 5253 03563 14063 2CADR NBDONLY
046842,000195:
046843,000196: 5255 15261 TCF TASKOVER
046844,000197:
046845,000198: 5256 05221 SVCT3X TC FIXDELAY # DELAY MAX OF 2 TIMES FOR IMUZERO.
046846,000199: 5257 00764 DEC 500 B-14
046847,000200: 5260 05240 TC SVCT3 # CHECK DRIFT FLAG AGAIN.
046848,000201:
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Page 1116 |
046850,000203: # BEGIN TASK INSERTION.
046851,000204:
046852,000205: 01,3232 BANK 01
046853,000206: 01,3232 COUNT* $$/WAIT
046854,000207: 01,3232 54062 WAIT2 TS WAITBANK # BBANK OF CALLING PROGRAM.
046855,000208: 01,3233 30002 CA Q
046856,000209: 01,3234 00006 EXTEND
046857,000210: 01,3235 63524 BZMF WAITPOOH
046858,000211:
046859,000212: 01,3236 40026 CS TIME3
046860,000213: 01,3237 64744 AD BIT8 # BIT 8 = OCT 200
046861,000214: 01,3240 10000 CCS A # TEST 200 - C(TIME3). IF POSITIVE,
046862,000215: # IT MEANS THAT TIME3 OVERFLOW HAS OCCURRED PRIOR TO CS TIME3 AND THAT
046863,000216: # C(TIME3) = T - T1, INSTEAD OF 1.0 - (T1 - T). THE FOLLOWING FOUR
046864,000217: # ORDERS SET C(A) = TD - T1 + 1 IN EITHER CASE.
046865,000218:
046866,000219: 01,3241 66112 AD OCT40001 # OVERFLOW HAS OCCURRED. SET C(A) =
046867,000220: 01,3242 40000 CS A # T - T1 + 1.0 - 201
046868,000221:
046869,000222: # NORMAL CASE (C(A) NNZ) YIELDS SAME C(A): -( -(1.0-(T1-T)) + 200) - 1
046870,000223:
046871,000224: 01,3243 63371 AD OCT40201
046872,000225: 01,3244 60002 AD Q # RESULT = TD - T1 + 1.
046873,000226:
046874,000227: 01,3245 10000 CCS A # TEST TD - T1 + 1
046875,000228:
046876,000229: 01,3246 61400 AD LST1 # IF TD - T1 POS, GO TO WTLST5 WITH
046877,000230: 01,3247 13311 TCF WTLST5 # C(A) = (TD - T1) + C(LST1) = TD-T2+1
046878,000231:
046879,000232: 01,3250 13251 NOOP
046880,000233: 01,3251 40002 CS Q
046881,000234:
046882,000235: # NOTE THAT THIS PROGRAM SECTION IS NEVER ENTERED WHEN T-T1 G/E -1,
046883,000236: # SINCE TD-T1+1 = (TD-T) + (T-T1+1), AND DELTA T = TD-T G/E +1. (G/E
046884,000237: # SYMBOL MEANS GREATER THAN OR EQUAL TO). THUS THERE NEED BE NO CON-
046885,000238: # CERN OVER A PREVIOUS OR IMMINENT OVERFLOW OF TIME3 HERE.
046886,000239:
046887,000240: 01,3252 64736 AD POS1/2 # WHEN TD IS NEXT, FORM QUANTITY
046888,000241: 01,3253 64736 AD POS1/2 # 1.0 - DELTA T = 1.0 - (TD - T)
046889,000242: 01,3254 56026 XCH TIME3
046890,000243: 01,3255 64735 AD NEGMAX
046891,000244: 01,3256 60002 AD Q # 1.0 - DELTAT T NOW COMPLETE.
046892,000245: 01,3257 00006 EXTEND # ZERO INDEX Q.
046893,000246: 01,3260 22007 QXCH 7 # (ZQ)
046894,000247:
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Page 1117 |
046896,000249: 01,3261 57400 WTLST4 XCH LST1
046897,000250: 01,3262 57401 XCH LST1 +1
046898,000251: 01,3263 57402 XCH LST1 +2
046899,000252: 01,3264 57403 XCH LST1 +3
046900,000253: 01,3265 57404 XCH LST1 +4
046901,000254: 01,3266 57405 XCH LST1 +5
046902,000255: 01,3267 57406 XCH LST1 +6
046903,000256: 01,3270 57407 XCH LST1 +7
046904,000257:
046905,000258: 01,3271 30063 CA WAITADR # (MINOR PART OF TASK CADR HAS BEEN IN L.)
046906,000259: 01,3272 50002 INDEX Q
046907,000260: 01,3273 13274 TCF +1
046908,000261:
046909,000262: 01,3274 53411 DXCH LST2
046910,000263: 01,3275 53413 DXCH LST2 +2
046911,000264: 01,3276 53415 DXCH LST2 +4
046912,000265: 01,3277 53417 DXCH LST2 +6
046913,000266: 01,3300 53421 DXCH LST2 +8D
046914,000267: 01,3301 53423 DXCH LST2 +10D # AT END, CHECK THAT C(LST2 +10) IS STD
046915,000268: 01,3302 53425 DXCH LST2 +12D
046916,000269: 01,3303 53427 DXCH LST2 +14D
046917,000270: 01,3304 53431 DXCH LST2 +16D
046918,000271: 01,3305 65236 AD ENDTASK # END ITEM, AS CHECK FOR EXCEEDING
046919,000272: # THE LENGTH OF THE LIST.
046920,000273: 01,3306 00006 EXTEND # DUMMY TASK ADRES SHOULD BE IN FIXED-
046921,000274: 01,3307 15215 BZF LVWTLIST # FIXED SO ITS ADRES ALONE DISTINGUISHES
046922,000275: 01,3310 13364 TCF WTABORT # IT.
046923,000276:
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Page 1118 |
046925,000278: 01,3311 10000 WTLST5 CCS A # TEST TD - T2 + 1
046926,000279: 01,3312 61401 AD LST1 +1
046927,000280: 01,3313 13317 TCF +4
046928,000281: 01,3314 64753 AD ONE
046929,000282: 01,3315 03375 TC WTLST2
046930,000283: 01,3316 00001 OCT 1
046931,000284:
046932,000285: 01,3317 10000 +4 CCS A # TEST TD - T3 + 1
046933,000286: 01,3320 61402 AD LST1 +2
046934,000287: 01,3321 13325 TCF +4
046935,000288: 01,3322 64753 AD ONE
046936,000289: 01,3323 03375 TC WTLST2
046937,000290: 01,3324 00002 OCT 2
046938,000291:
046939,000292: 01,3325 10000 +4 CCS A # TEST TD - T4 + 1
046940,000293: 01,3326 61403 AD LST1 +3
046941,000294: 01,3327 13333 TCF +4
046942,000295: 01,3330 64753 AD ONE
046943,000296: 01,3331 03375 TC WTLST2
046944,000297: 01,3332 00003 OCT 3
046945,000298:
046946,000299: 01,3333 10000 +4 CCS A # TEST TD - T5 + 1
046947,000300: 01,3334 61404 AD LST1 +4
046948,000301: 01,3335 13341 TCF +4
046949,000302: 01,3336 64753 AD ONE
046950,000303: 01,3337 03375 TC WTLST2
046951,000304: 01,3340 00004 OCT 4
046952,000305:
046953,000306: 01,3341 10000 +4 CCS A # TEST TD - T6 + 1
046954,000307: 01,3342 61405 AD LST1 +5
046955,000308: 01,3343 13347 TCF +4
046956,000309: 01,3344 64753 AD ONE
046957,000310: 01,3345 03375 TC WTLST2
046958,000311: 01,3346 00005 OCT 5
046959,000312:
046960,000313: 01,3347 10000 +4 CCS A # TEST TD - T7 + 1
046961,000314: 01,3350 61406 AD LST1 +6
046962,000315: 01,3351 13355 TCF +4
046963,000316: 01,3352 64753 AD ONE
046964,000317: 01,3353 03375 TC WTLST2
046965,000318: 01,3354 00006 OCT 6
046966,000319:
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Page 1119 |
046968,000321: 01,3355 10000 +4 CCS A
046969,000322: 01,3356 61407 AD LST1 +7
046970,000323: 01,3357 13363 TCF +4
046971,000324: 01,3360 64753 AD ONE
046972,000325: 01,3361 03375 TC WTLST2
046973,000326: 01,3362 00007 OCT 7
046974,000327:
046975,000328: 01,3363 10000 +4 CCS A
046976,000329: 01,3364 03372 WTABORT TC FILLED
046977,000330: 01,3365 13366 NOOP # CAN'T GET HERE
046978,000331: 01,3366 64753 AD ONE
046979,000332: 01,3367 03375 TC WTLST2
046980,000333: 01,3370 00010 OCT 10
046981,000334:
046982,000335: 01,3371 40201 OCT40201 OCT 40201
046983,000336:
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Page 1120 |
046985,000338: 01,3372 52062 FILLED DXCH WAITEXIT
046986,000339: 01,3373 05706 TC BAILOUT1 # NO ROOM IN THE INN
046987,000340: 01,3374 31203 OCT 31203
046988,000341:
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Page 1121 |
046990,000343: # THE ENTRY TO WTLST2 JUST PRECEDING OCT N IS FOR T LE TD LE T -1.
046991,000344: # N N+1
046992,000345: # (LE MEANS LESS THAN OR EQUAL TO). AT ENTRY, C(A) = -(TD - T + 1)
046993,000346: # N+1
046994,000347: # THE LST1 ENTRY-(T -T +1) IS TO BE REPLACED BY -(TD - T + 1), AND
046995,000348: # N+1 N N
046996,000349: # THE ENTRY-(T - TD + 1) IS TO BE INSERTED IMMEDIATELY FOLLOWING.
046997,000350: # N+1
046998,000351:
046999,000352: 01,3375 54064 WTLST2 TS WAITTEMP # C(A) = -(TD - T + 1)
047000,000353: 01,3376 50002 INDEX Q
047001,000354: 01,3377 30000 CAF 0
047002,000355: 01,3400 54002 TS Q # INDEX VALUE INTO Q.
047003,000356:
047004,000357: 01,3401 34753 CAF ONE
047005,000358: 01,3402 60064 AD WAITTEMP
047006,000359: 01,3403 50002 INDEX Q # C(A) = -(TD - T ) + 1.
047007,000360: 01,3404 27377 ADS LST1 -1 # N
047008,000361:
047009,000362: 01,3405 40064 CS WAITTEMP
047010,000363: 01,3406 50002 INDEX Q
047011,000364: 01,3407 13261 TCF WTLST4
047012,000365:
047013,000366: # C(TIME3) = 1.0 - (T1 - T)
047014,000367:
047015,000368: # C(LST1) = - (T2 - T1) + 1
047016,000369: # C(LST1+1) = - (T3 - T2) + 1
047017,000370: # C(LST1+2) = - (T4 - T3) + 1
047018,000371: # C(LST1+3) = - (T5 - T4) + 1
047019,000372: # C(LST1+4) = - (T6 - T5) + 1
047020,000373:
047021,000374: # C(LST2) = 2CADR TASK1
047022,000375: # C(LST2+2) = 2CADR TASK2
047023,000376: # C(LST2+4) = 2CADR TASK3
047024,000377: # C(LST2+6) = 2CADR TASK4
047025,000378: # C(LST2+8) = 2CADR TASK5
047026,000379: # C(LST2+10) = 2CADR TASK6
047027,000380:
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Page 1122 |
047029,000382: # ENTERS HERE ON T3 RUPT TO DISPATCH WAITLISTED TASK.
047030,000383:
047031,000384: 01,3410 00006 T3RUPT EXTEND
047032,000385: 01,3411 04007 ROR SUPERBNK # READ CURRENT SUPERBANK VALUE AND
047033,000386: 01,3412 54016 TS BANKRUPT # SAVE WITH E AND F BANK VALUES.
047034,000387: 01,3413 00006 EXTEND
047035,000388: 01,3414 22012 QXCH QRUPT
047036,000389:
047037,000390: 01,3415 34734 T3RUPT2 CAF NEG1/2 # DISPATCH WAITLIST TASK.
047038,000391: 01,3416 57407 XCH LST1 +7
047039,000392: 01,3417 57406 XCH LST1 +6
047040,000393: 01,3420 57405 XCH LST1 +5
047041,000394: 01,3421 57404 XCH LST1 +4 # 1. MOVE UP LST1 CONTENTS, ENTERING
047042,000395: 01,3422 57403 XCH LST1 +3 # A VALUE OF 1/2 +1 AT THE BOTTOM
047043,000396: 01,3423 57402 XCH LST1 +2 # FOR T6-T5, CORRESPONDING TO THE
047044,000397: 01,3424 57401 XCH LST1 +1 # INTERVAL 81.91 SEC FOR ENDTASK.
047045,000398: 01,3425 57400 XCH LST1
047046,000399: 01,3426 64733 AD POSMAX # 2. SET T3 = 1.0 - T2 - T USING LIST 1.
047047,000400: 01,3427 26026 ADS TIME3 # SO T3 WONT TICK DURING UPDATE.
047048,000401: 01,3430 54332 TS RUPTAGN
047049,000402: 01,3431 44755 CS ZERO
047050,000403: 01,3432 54332 TS RUPTAGN # SETS RUPTAGN TO +1 ON OVERFLOW.
047051,000404:
047052,000405: 01,3433 00006 EXTEND # DISPATCH TASK.
047053,000406: 01,3434 45237 DCS ENDTASK
047054,000407: 01,3435 53431 DXCH LST2 +16D
047055,000408: 01,3436 53427 DXCH LST2 +14D
047056,000409: 01,3437 53425 DXCH LST2 +12D
047057,000410: 01,3440 53423 DXCH LST2 +10D
047058,000411: 01,3441 53421 DXCH LST2 +8D
047059,000412: 01,3442 53417 DXCH LST2 +6
047060,000413: 01,3443 53415 DXCH LST2 +4
047061,000414: 01,3444 53413 DXCH LST2 +2
047062,000415: 01,3445 53411 DXCH LST2
047063,000416:
047064,000417: 01,3446 56001 XCH L
047065,000418: 01,3447 00006 EXTEND
047066,000419: 01,3450 01007 WRITE SUPERBNK # SET SUPERBANK FROM BBCON OF 2CADR
047067,000420: 01,3451 56001 XCH L # RESTORE TO L FOR DXCH Z.
047068,000421: 01,3452 52006 DTCB
047069,000422:
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Page 1123 |
047071,000424: # RETURN, AFTER EXECUTION OF T3 OVERFLOW TASK:
047072,000425:
047073,000426: 5261 BLOCK 02
047074,000427: 5261 COUNT* $$/WAIT
047075,000428: 5261 10332 TASKOVER CCS RUPTAGN # IF +1 RETURN TO T3RUPT, IF -0 RESUME.
047076,000429: 5262 35220 CAF WAITBB
047077,000430: 5263 54006 TS BBANK
047078,000431: 5264 13415 TCF T3RUPT2 # DISPATCH NEXT TASK IF IT WAS DUE.
047079,000432:
047080,000433: 5265 30016 CA BANKRUPT
047081,000434: 5266 00006 EXTEND
047082,000435: 5267 01007 WRITE SUPERBNK # RESTORE SUPERBANK BEFORE RESUME IS DONE
047083,000436:
047084,000437: 5270 00006 RESUME EXTEND
047085,000438: 5271 22012 QXCH QRUPT
047086,000439: 5272 30016 NOQRSM CA BANKRUPT
047087,000440: 5273 56006 XCH BBANK
047088,000441: 5274 52011 NOQBRSM DXCH ARUPT
047089,000442: 5275 00003 RELINT
047090,000443: 5276 50017 RESUME
047091,000444:
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Page 1124 |
047093,000446: # LONGCALL
047094,000447: # PROGRAM DESCRIPTION DATE - 17 MARCH 1967
047095,000448: # PROGRAM WRITTEN BY W.H.VANDEVER LOG SECTION WAITLIST
047096,000449: # MOD BY - R. MELANSON TO ADD DOCUMENTATION ASSEMBLY SUNDISK REV. 100
047097,000450:
047098,000451: # FUNCTIONAL DESCRIPTION -
047099,000452: # LONGCALL IS CALLED WITH THE DELTA TIME ARRIVING IN A,L SCALED AS TIME2,TIME1 WITH THE 2CADR OF THE TASK
047100,000453: # IMMEDIATELY FOLLOWING THE TC LONGCALL. FOR EXAMPLE, IT MIGHT BE DONE AS FOLLOWS WHERE TIMELOC IS THE NAME OF
047101,000454: # A DP REGISTER CONTAINING A DELTA TIME AND WHERE TASKTODO IS THE NAME OF THE LOCATION AT WHICH LONGCALL IS TO
047102,000455: # START
047103,000456: # CALLING SEQUENCE -
047104,000457: # EXTEND
047105,000458: # DCA TIMELOC
047106,000459: # TC LONGCALL
047107,000460: # 2CADR TASKTODO
047108,000461: # NORMAL EXIT MODE -
047109,000462: # 1). TC WAITLIST
047110,000463: # 2). DTCB (TO L+3 OF CALLING ROUTINE 1ST PASS THRU LONGCYCL)
047111,000464: # 3). DTCB (TO TASKOVER ON SUBSEQUENT PASSES THRU LONGCYCL)
047112,000465: # ALARM OR ABORT EXIT MODE -
047113,000466: # NONE
047114,000467: # OUTPUT -
047115,000468: # LONGTIME AND LONGTIME+1 = DELTA TIME
047116,000469: # LONGEXIT AND LONGEXIT+1 = RETURN 2CADR
047117,000470: # LONGCADR AND LONGCADR+1 = TASK 2CADR
047118,000471: # A = SINGLE PRECISION TIME FOR WAITLIST
047119,000472: # ERASABLE INITIALIZATION -
047120,000473: # A = MOST SIGNIFICANT PART OF DELTA TIME
047121,000474: # L = LEAST SIGNIFICANT PART OF DELTA TIME
047122,000475: # Q = ADDRESS OF 2CADR TASK VALUE
047123,000476: # DEBRIS -
047124,000477: # A,Q,L
047125,000478: # LONGCADR AND LONGCADR+1
047126,000479: # LONGEXIT AND LONGEXIT+1
047127,000480: # LONGTIME AND LONGTIME+1
047128,000481: # *** THE FOLLOWING IS TO BE IN FIXED-FIXED AND UNSWITCHED ERRASIBLE ***
047129,000482:
047130,000483: 5277 BLOCK 02
047131,000484: 5277 E3,1400 EBANK= LST1
047132,000485: 5277 53153 LONGCALL DXCH LONGTIME # OBTAIN THE DELTA TIME
047133,000486:
047134,000487: 5300 00006 EXTEND # OBTAIN THE 2CADR
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Page 1125 |
047136,000489: 5301 50002 NDX Q
047137,000490: 5302 30001 DCA 0
047138,000491: 5303 53147 DXCH LONGCADR
047139,000492:
047140,000493: 5304 00006 EXTEND # NOW GO TO THE APPROPRIATE SWITCHED BANK
047141,000494: 5305 35310 DCA LGCL2CDR # FOR THE REST OF LONGCALL
047142,000495: 5306 52006 DTCB
047143,000496:
047144,000497: 5307 E3,1400 EBANK= LST1
047145,000498: 5307 03453 02063 LGCL2CDR 2CADR LNGCALL2
047146,000499:
047147,000500: # *** THE FOLLOWING MAY BE IN A SWITCHED BANK, INCLUDING ITS ERASABLE ***
047148,000501:
047149,000502: 01,3453 BANK 01
047150,000503: 01,3453 COUNT* $$/WAIT
047151,000504: 01,3453 23435 LNGCALL2 LXCH LONGEXIT +1 # SAVE THE CORRECT BB FOR RETURN
047152,000505: 01,3454 34752 CA TWO # OBTAIN THE RETURN ADDRESS
047153,000506: 01,3455 26002 ADS Q
047154,000507: 01,3456 55434 TS LONGEXIT
047155,000508:
047156,000509: 01,3457 31152 CA LONGTIME # CHECK FOR LEGITIMATE DELTA-TIME
047157,000510: 01,3460 10000 CCS A
047158,000511: 01,3461 13467 TCF LONGCYCL # HI-ORDER OK --> ALL IS OK.
047159,000512: 01,3462 13464 TCF +2 # HI-ORDER ZERO --> CHECK LO-ORDER.
047160,000513: 01,3463 13522 TCF LONGPOOH # HI-ORDER NEG. --> NEG. DT
047161,000514: 01,3464 31153 +2 CA LONGTIME +1 # CHECK LO-ORDER FOR ZERO OR NEGATIVE.
047162,000515: 01,3465 00006 EXTEND
047163,000516: 01,3466 63522 BZMF LONGPOOH # BAD DELTA-TIME. ABORT
047164,000517:
047165,000518: # *** WAITLIST TASK LONGCYCL ***
047166,000519:
047167,000520: 01,3467 00006 LONGCYCL EXTEND # CAN WE SUCCESFULLY TAKE ABOUT 1.25
047168,000521: 01,3470 43501 DCS DPBIT14 # MINUTES OFF OF LONGTIME
047169,000522: 01,3471 21153 DAS LONGTIME
047170,000523:
047171,000524: 01,3472 11153 CCS LONGTIME +1 # THE REASONIBG BEHIND THIS PART IS
047172,000525: 01,3473 13512 TCF MUCHTIME # INVOLVED, TAKING INTO ACCOUNT THAT THE
047173,000526: # WORDS MAY NOT BE SIGNED CORRECTED (DP
047174,000527: # BASIC INSTRUCTIONS
047175,000528: # DO NOT SIGN CORRECT) AND THAT WE SUBTRAC
047176,000529: # TED BIT14 (1 OVER HALF THE POS. VALUE
047177,000530: # REPRESENTIBLE IN SINGLE WORD)
047178,000531: 01,3474 13475 NOOP # CAN:T GET HERE **********
047179,000532: 01,3475 13476 TCF +1
047180,000533: 01,3476 11152 CCS LONGTIME
047181,000534: 01,3477 13512 TCF MUCHTIME
047182,000535: 01,3500 00000 DPBIT14 OCT 00000
047183,000536: 01,3501 20000 OCT 20000
047184,000537:
047185,000538: # LONGCALL
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Page 1126 |
047187,000540: 01,3502 34736 LASTTIME CA BIT14 # GET BACK THE CORRECT DELTA TFOR WAITLIST
047188,000541: 01,3503 27153 ADS LONGTIME +1
047189,000542: 01,3504 05203 TC WAITLIST
047190,000543: 01,3505 E3,1400 EBANK= LST1
047191,000544: 01,3505 03517 02063 2CADR GETCADR # THE ENTRY TO OUR LONGCADR
047192,000545:
047193,000546: 01,3507 33521 LONGRTRN CA TSKOVCDR # SET IT UP SO THAT ONLY THE FIRST EXIT IS
047194,000547: 01,3510 53435 DXCH LONGEXIT # TO THE CALLER OF LONGCALL
047195,000548: 01,3511 52006 DTCB # THE REST ARE TO TASKOVER
047196,000549:
047197,000550: 01,3512 34736 MUCHTIME CA BIT14 # WE HAVE OVER OUR ABOUT 1.25 MINUTES
047198,000551: 01,3513 05203 TC WAITLIST # SO SET UP FOR ANOTHER CYCLE THROUGH HERE
047199,000552: 01,3514 E3,1400 EBANK= LST1
047200,000553: 01,3514 03467 02063 2CADR LONGCYCL
047201,000554:
047202,000555: 01,3516 13507 TCF LONGRTRN # NOW EXIT PROPERLY
047203,000556:
047204,000557: # *** WAITLIST TASK GETCADR ***
047205,000558:
047206,000559: 01,3517 53147 GETCADR DXCH LONGCADR # GET THE LONGCALL THAT WE WISHED TO START
047207,000560: 01,3520 52006 DTCB # AND TRANSFER CONTROL TO IT
047208,000561:
047209,000562: 01,3521 05261 TSKOVCDR GENADR TASKOVER
047210,000563: 01,3522 53435 LONGPOOH DXCH LONGEXIT
047211,000564: 01,3523 13525 TCF +2
047212,000565: 01,3524 52062 WAITPOOH DXCH WAITEXIT
047213,000566: 01,3525 05716 +2 TC POODOO1
047214,000567: 01,3526 21204 OCT 21204
047215,000568:
End of include-file WAITLIST.agc. Parent file is MAIN.agc