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. |
050498,000002: ## Copyright: Public domain.
050499,000003: ## Filename: WAITLIST.agc
050500,000004: ## Purpose: Part of the source code for Colossus build 237.
050501,000005: ## This is for the Command Module's (CM) Apollo Guidance
050502,000006: ## Computer (AGC), for Apollo 8.
050503,000007: ## Assembler: yaYUL
050504,000008: ## Contact: Onno Hommes <ohommes@alumni.cmu.edu>
050505,000009: ## Website: www.ibiblio.org/apollo/index.html
050506,000010: ## Page Scans: www.ibiblio.org/apollo/ScansForConversion/Colossus237/
050507,000011: ## Mod history: 2010-06-02 OH Adapted from corresponding Colossus 249 file.
050508,000012: ## 2010-12-04 JL Remove Colossus 249 header comments. Change to double-has page numbers.
050509,000013: ## 2011-02-12 JL Minor fixes.
050510,000014: ## 2016-11-02 RSB Typo (offset-reference -1 was not indented).
050511,000015: ## 2017-01-01 RSB Proofed comment text using octopus/ProoferComments,
050512,000016: ## and fixed errors found.
050513,000017: ## 2017-01-20 RSB Fixed comment-text errors noted while diff'ing
050514,000018: ## vs Colossus 249.
050515,000019: ## 2017-02-09 RSB Comment-text fixes identified in proofing Artemis 72
050516,000020: ## 2017-03-16 RSB Comment-text fixes identified in 5-way
050517,000021: ## side-by-side diff of Luminary 69/99/116/131/210.
050518,000022:
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Page 1188 |
050520,000024: # PROGRAM DESCRIPTION DATE - 10 OCTOBER 1966
050521,000025: # MOD NO - 2 LOG SECTION - WAITLIST
050522,000026: # MOD BY - MILLER (DTMAX INCREASED TO 162.5 SEC) ASSEMBLY SUNBURST REV 5
050523,000027: # MOD 3 BY KERNAN (INHINT INSERTED AT WAITLIST) 2/28/68 SKIPPER REV 4
050524,000028:
050525,000029: # MOD 4BY KERNAN (TWIDDLE IN 54) 3/28/68 SKIPPER REV 13.
050526,000030:
050527,000031:
050528,000032: # FUNCTIONAL DESCRIPTION-
050529,000033: # PART OF A SECTION OF PROGRAMS,-WAITLIST, TASKOVER, T3RUPT, USED TO CALL A PROGRAM, (CALLED A TASK),
050530,000034: # WHICH IS TO BEGIN IN C(A) CENTISECONDS. WAITLIST UPDATES TIME3, LST1 AND LST2. THE MEANING OF THESE LISTS
050531,000035: # FOLLOW.
050532,000036:
050533,000037: # C(TIME3) = 16384 -(T1-T) CENTISECONDS, (T=PRESENT TIME, T1-TIME FOR TASK1)
050534,000038:
050535,000039:
050536,000040: # C(LST1) = -(T2-T1)+1
050537,000041: # C(LST1 +1) = -(T3-T2)+1
050538,000042: # C(LST1 +2) = -(T4-T3)+1
050539,000043: # .
050540,000044: # .
050541,000045: # C(LST1 +6) = -(T8-T7)+1
050542,000046: # C(LST1 +7) = -(T9-T8)+1
050543,000047:
050544,000048: # C(LST2) = 2CADR OF TASK1
050545,000049: # C(LST2 +2) = 2CADR OF TASK2
050546,000050: # .
050547,000051: # .
050548,000052: # C(LST2 +14)= 2CADR OF TASK8
050549,000053: # C(LST2 +16)= 2CADR OF TASK9
050550,000054:
050551,000055: # WARNINGS-
050552,000056: # --------
050553,000057: # 1) 1 <= C(A) <= 16250D (1 CENTISECOND TO 162.5 SEC)
050554,000058: # 2) 9 TASKS MAXIMUM
050555,000059: # 3) TASKS CALLED UNDER INTERRUPT INHIBITED
050556,000060: # 4) TASKS END BY TC TASKOVER
050557,000061:
050558,000062: # CALLING SEQUENCE-
050559,000063:
050560,000064: # L-1 CA DELTAT (TIME IN CENTISECONDS TO TASK START)
050561,000065: # L TC WAITLIST
050562,000066: # L+1 2CADR DESIRED TASK
050563,000067: # L+2 (MINOR OF 2CADR)
050564,000068: # L+3 RELINT (RETURNS HERE)
050565,000069:
050566,000070: # TWIDDLE-
050567,000071: # -------
050568,000072: # TWIDDLE IS FOR USE WHEN THE TASK BEING SET UP IS IN THE SAME EBANK AND FBANK AS THE USER. IN
050569,000073: # SUCH CASES, IT IMPROVES UPON WAITLIST BY ELIMINATING THE NEED FOR THE BBCON HALF OF THE 2CADR,
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Page 1189 |
050571,000075: # SAVING A WORD. TWIDDLE IS LIKE WAITLIST IN EVERY RESPECT EXCEPT CALLING SEQUENCE, TO WIT-
050572,000076:
050573,000077: # L-1 CA DELTAT
050574,000078: # L TC TWIDDLE
050575,000079: # L+1 ADRES DESIRED TASK
050576,000080: # L+2 RELINT (RETURNS HERE)
050577,000081:
050578,000082: # NORMAL EXIT MODES-
050579,000083:
050580,000084: # AT L+3 OF CALLING SEQUENCE
050581,000085:
050582,000086: # ALARM OR ABORT EXIT MODES-
050583,000087:
050584,000088: # TC ABORT
050585,000089: # OCT 1203 (WAITLIST OVERFLOW - TOO MANY TASKS)
050586,000090:
050587,000091: # ERASABLE INITIALIZATION REQUIRED-
050588,000092:
050589,000093: # ACCOMPLISHED BY FRESH START,--LST2,..., LST2 +16 =ENDTASK
050590,000094: # LST1,..., LST1 +7 =NEG1/2
050591,000095:
050592,000096: # OUTPUT--
050593,000097:
050594,000098: # LST1 AND LST2 UPDATED WITH NEW TASK AND ASSOCIATED TIME.
050595,000099: # DEBRIS-
050596,000100:
050597,000101: # CENTRALS- A,Q,L
050598,000102: # OTHER - WAITEXIT, WAITADR, WAITTEMP, WAITBANK
050599,000103: # DETAILED ANALYSIS OF TIMING-
050600,000104: # CONTROL WILL NOT BE RETURNED TO THE SPECIFIED ADDRESS (2CADR) IN EXACTLY DELTA T CENTISECONDS.
050601,000105: # THE APPROXIMATE TIME MAY BE CALCULATED AS FOLLOWS
050602,000106:
050603,000107: # LET TO = THE TIME OF THE TC WAITLIST
050604,000108: # LET TS = TO +147U + COUNTER INCREMENTS (SET UP TIME)
050605,000109: # LET X = TS -(100TS)/100 (VARIANCE FROM COUNTERS)
050606,000110: # LET Y = LENGTH OF TIME OF INHIBIT INTERRUPT AFTER T3RUPT
050607,000111: # LET Z = LENGTH OF TIME TO PROCESS TASKS WHICH ARE DUE THIS T3RUPT BUT DISPATCHED EARLIER.
050608,000112: # (Z=0, USUALLY)
050609,000113: # LET DELTD = THE ACTUAL TIME TAKEN TO GIVE CONTROL TO 2CADR
050610,000114: # THEN DELTD = TS+DELTA T -X +Y +Z +1.05MS* +COUNTERS*
050611,000115: # *-THE TIME TAKEN BY WAITLIST ITSELF AND THE COUNTER TICKING DURING THIS WAITLIST TIME.
050612,000116:
050613,000117:
050614,000118: # IN SHORT, THE ACTUAL TIME TO RETURN CONTROL TO A 2CADR IS AUGMENTED BY THE TIME TO SET UP THE TASK:S
050615,000119: # INTERRUPT, ALL COUNTERS TICKING, THE T3RUPT PROCESSING TIME, THE WAITLIST PROCESSING TIME AND THE POSSIBILITY
050616,000120: # OF OTHER TASKS INHIBITING THE INTERRUPT.
050617,000121:
050618,000122:
050619,000123: 5130 BLOCK 02
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Page 1190 |
050621,000125: 5130 E3,1400 EBANK= LST1 # TASK LISTS IN SWITCHED E BANK.
050622,000126:
050623,000127: 5130 COUNT 02/WAIT
050624,000128:
050625,000129: 5130 00004 TWIDDLE INHINT
050626,000130: 5131 54001 TS L # SAVE DELAY TIME IN L
050627,000131: 5132 34672 CA POSMAX
050628,000132: 5133 26002 ADS Q # CREATING OVERFLOW AND Q-1 IN Q
050629,000133: 5134 30006 CA BBANK
050630,000134: 5135 00006 EXTEND
050631,000135: 5136 04007 ROR SUPERBNK
050632,000136: 5137 56001 XCH L
050633,000137:
050634,000138: 5140 00004 WAITLIST INHINT
050635,000139: 5141 56002 XCH Q # SAVE DELTA T IN Q AND RETURN IN
050636,000140: 5142 54061 TS WAITEXIT # WAITEXIT.
050637,000141: 5143 00006 EXTEND
050638,000142: 5144 50061 INDEX WAITEXIT # IF TWIDDLING, THE TS SKIPS TO HERE
050639,000143: 5145 30001 DCA 0 # PICK UP 2CADR OF TASK.
050640,000144: 5146 54063 -1 TS WAITADR # BBCON WILL REMAIN IN L
050641,000145: 5147 35155 DLY2 CAF WAITBB # ENTRY FROM FIXDELAY AND VARDELAY.
050642,000146: 5150 56006 XCH BBANK
050643,000147: 5151 13246 TCF WAIT2
050644,000148:
050645,000149: # RETURN TO CALLER AFTER TASK INSERTION:
050646,000150:
050647,000151: 5152 52062 LVWTLIST DXCH WAITEXIT
050648,000152: 5153 64711 AD TWO
050649,000153: 5154 52006 DTCB
050650,000154:
050651,000155: 5155 E3,1400 EBANK= LST1
050652,000156: 5155 02063 WAITBB BBCON WAIT2
050653,000157:
050654,000158: # RETURN TO CALLER +2 AFTER WAITING DT SPECIFIED AT CALLER +1.
050655,000159:
050656,000160: 5156 50002 FIXDELAY INDEX Q # BOTH ROUTINES MUST BE CALLED UNDER
050657,000161: 5157 30000 CAF 0 # WAITLIST CONTROL AND TERMINATE THE TASK
050658,000162: 5160 24002 INCR Q # IN WHICH THEY WERE CALLED.
050659,000163:
050660,000164: # RETURN TO CALLER +1 AFTER WAITING THE DT AS ARRIVING IN A.
050661,000165:
050662,000166: 5161 56002 VARDELAY XCH Q # DT TO Q. TASK ADRES TO WAITADR.
050663,000167: 5162 54063 TS WAITADR
050664,000168: 5163 30006 CA BBANK # BBANK IS SAVED DURING DELAY.
050665,000169: 5164 00006 EXTEND
050666,000170: 5165 04007 ROR SUPERBNK # ADD SBANK TO BBCON.
050667,000171: 5166 54001 TS L
050668,000172: 5167 35172 CAF DELAYEX
050669,000173: 5170 54061 TS WAITEXIT # GO TO TASKOVER AFTER TASK ENTRY.
050670,000174: 5171 15147 TCF DLY2
050671,000175:
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Page 1191 |
050673,000177: 5172 15211 DELAYEX TCF TASKOVER -2 # RETURNS TO TASKOVER
050674,000178:
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Page 1192 |
050676,000180: # ENDTASK MUST BE ENTERED IN FIXED-FIXED SO IT IS DISTINGUISHABLE BY ITS ADRES ALONE.
050677,000181:
050678,000182: 5173 E3,1400 EBANK= LST1
050679,000183: 5173 72602 73714 ENDTASK -2CADR SVCT3
050680,000184:
050681,000185: 5175 10076 SVCT3 CCS FLAGWRD2 # DRIFT FLAG
050682,000186: 5176 15213 TCF TASKOVER
050683,000187: 5177 15213 TCF TASKOVER
050684,000188: 5200 15201 TCF +1
050685,000189:
050686,000190: 5201 11322 CCS IMUCADR # DON'T DO NBDONLY IF SOMEONE ELSE IS IN
050687,000191: 5202 15213 TCF TASKOVER # IMUSTALL.
050688,000192: 5203 15206 TCF +3
050689,000193: 5204 15213 TCF TASKOVER
050690,000194: 5205 15213 TCF TASKOVER
050691,000195:
050692,000196: 5206 37672 +3 CAF PRIO35 # COMPENSATE FOR NBD COEFFICIENTS ONLY.
050693,000197: 5207 05027 TC NOVAC # ENABLE EVERY 81.93 SECONDS
050694,000198: 5210 E3,1460 EBANK= NBDX
050695,000199: 5210 03542 14063 2CADR NBDONLY
050696,000200: 5212 15213 TCF TASKOVER
050697,000201:
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Page 1193 |
050699,000203: # BEGIN TASK INSERTION.
050700,000204:
050701,000205: 01,3246 BANK 01
050702,000206: 01,3246 COUNT 01/WAIT
050703,000207:
050704,000208: 01,3246 54062 WAIT2 TS WAITBANK # BBANK OF CALLING PROGRAM.
050705,000209: 01,3247 40026 CS TIME3
050706,000210: 01,3250 64703 AD BIT8 # BIT 8 = OCT 200
050707,000211: 01,3251 10000 CCS A # TEST 200 - C(TIME3). IF POSITIVE,
050708,000212: # IT MEANS THAT TIME3 OVERFLOW HAS OCCURRED PRIOR TO CS TIME3 AND THAT
050709,000213: # C(TIME3) = T - T1, INSTEAD OF 1.0 - (T1 - T). THE FOLLOWING FOUR
050710,000214: # ORDERS SET C(A) = TD - T1 + 1 IN EITHER CASE.
050711,000215:
050712,000216: 01,3252 66056 AD OCT40001 # OVERFLOW HAS OCCURRED. SET C(A) =
050713,000217: 01,3253 40000 CS A # T - T1 + 1.0 - 201
050714,000218:
050715,000219: # NORMAL CASE (C(A) NNZ) YIELDS SAME C(A): -( -(1.0-(T1-T)) + 200) - 1
050716,000220:
050717,000221: 01,3254 63402 AD OCT40201
050718,000222: 01,3255 60002 AD Q # RESULT = TD - T1 + 1.
050719,000223:
050720,000224: 01,3256 10000 CCS A # TEST TD - T1 + 1
050721,000225:
050722,000226: 01,3257 61400 AD LST1 # IF TD - T1 POS, GO TO WTLST5 WITH
050723,000227: 01,3260 13322 TCF WTLST5 # C(A) = (TD - T1) + C(LST1) = TD-T2+1
050724,000228:
050725,000229: 01,3261 13262 NOOP
050726,000230: 01,3262 40002 CS Q
050727,000231:
050728,000232: # NOTE THAT THIS PROGRAM SECTION IS NEVER ENTERED WHEN T-T1 G/E -1,
050729,000233: # SINCE TD-T1+1 = (TD-T) + (T-T1+1), AND DELTA T = TD-T G/E +1 . (G/E
050730,000234: # SYMBOL MEANS GREATER THAN OR EQUAL TO). THUS THERE NEED BE NO CON-
050731,000235: # CERN OVER A PREVIOUS OR IMMINENT OVERFLOW OF TIME3 HERE.
050732,000236:
050733,000237: 01,3263 64675 AD POS1/2 # WHEN TD IS NEXT, FORM QUANTITY
050734,000238: 01,3264 64675 AD POS1/2 # 1.0 - DELTA T = 1.0 - (TD - T)
050735,000239: 01,3265 56026 XCH TIME3
050736,000240: 01,3266 64674 AD NEGMAX
050737,000241: 01,3267 60002 AD Q # 1.0 - DELTAT T NOW COMPLETE.
050738,000242: 01,3270 00006 EXTEND # ZERO INDEX Q.
050739,000243: 01,3271 22007 QXCH 7 # (ZQ)
050740,000244:
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Page 1194 |
050742,000246: 01,3272 57400 WTLST4 XCH LST1
050743,000247: 01,3273 57401 XCH LST1 +1
050744,000248: 01,3274 57402 XCH LST1 +2
050745,000249: 01,3275 57403 XCH LST1 +3
050746,000250: 01,3276 57404 XCH LST1 +4
050747,000251: 01,3277 57405 XCH LST1 +5
050748,000252: 01,3300 57406 XCH LST1 +6
050749,000253: 01,3301 57407 XCH LST1 +7
050750,000254:
050751,000255: 01,3302 30063 CA WAITADR # (MINOR PART OF TASK CADR HAS BEEN IN L.)
050752,000256: 01,3303 50002 INDEX Q
050753,000257: 01,3304 13305 TCF +1
050754,000258:
050755,000259: 01,3305 53411 DXCH LST2
050756,000260: 01,3306 53413 DXCH LST2 +2
050757,000261: 01,3307 53415 DXCH LST2 +4
050758,000262: 01,3310 53417 DXCH LST2 +6
050759,000263: 01,3311 53421 DXCH LST2 +8D
050760,000264: 01,3312 53423 DXCH LST2 +10D # AT END, CHECK THAT C(LST2 +10) IS STD
050761,000265: 01,3313 53425 DXCH LST2 +12D
050762,000266: 01,3314 53427 DXCH LST2 +14D
050763,000267: 01,3315 53431 DXCH LST2 +16D
050764,000268: 01,3316 65173 AD ENDTASK # END ITEM, AS CHECK FOR EXCEEDING
050765,000269: # THE LENGTH OF THE LIST.
050766,000270: 01,3317 00006 EXTEND # DUMMY TASK ADRES SHOULD BE IN FIXED-
050767,000271: 01,3320 15152 BZF LVWTLIST # FIXED SO ITS ADRES ALONE DISTINGUISHES
050768,000272: 01,3321 13375 TCF WTABORT # IT.
050769,000273:
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Page 1195 |
050771,000275: 01,3322 10000 WTLST5 CCS A # TEST TD - T2 + 1
050772,000276: 01,3323 61401 AD LST1 +1
050773,000277: 01,3324 13330 TCF +4
050774,000278: 01,3325 64712 AD ONE
050775,000279: 01,3326 03403 TC WTLST2
050776,000280: 01,3327 00001 OCT 1
050777,000281:
050778,000282: 01,3330 10000 +4 CCS A # TEST TD - T3 + 1
050779,000283: 01,3331 61402 AD LST1 +2
050780,000284: 01,3332 13336 TCF +4
050781,000285: 01,3333 64712 AD ONE
050782,000286: 01,3334 03403 TC WTLST2
050783,000287: 01,3335 00002 OCT 2
050784,000288:
050785,000289: 01,3336 10000 +4 CCS A # TEST TD - T4 + 1
050786,000290: 01,3337 61403 AD LST1 +3
050787,000291: 01,3340 13344 TCF +4
050788,000292: 01,3341 64712 AD ONE
050789,000293: 01,3342 03403 TC WTLST2
050790,000294: 01,3343 00003 OCT 3
050791,000295:
050792,000296: 01,3344 10000 +4 CCS A # TEST TD - T5 + 1
050793,000297: 01,3345 61404 AD LST1 +4
050794,000298: 01,3346 13352 TCF +4
050795,000299: 01,3347 64712 AD ONE
050796,000300: 01,3350 03403 TC WTLST2
050797,000301: 01,3351 00004 OCT 4
050798,000302:
050799,000303: 01,3352 10000 +4 CCS A # TEST TD - T6 + 1
050800,000304: 01,3353 61405 AD LST1 +5
050801,000305: 01,3354 13360 TCF +4
050802,000306: 01,3355 64712 AD ONE
050803,000307: 01,3356 03403 TC WTLST2
050804,000308: 01,3357 00005 OCT 5
050805,000309:
050806,000310: 01,3360 10000 +4 CCS A # TEST TD - T7 + 1
050807,000311: 01,3361 61406 AD LST1 +6
050808,000312: 01,3362 13366 TCF +4
050809,000313: 01,3363 64712 AD ONE
050810,000314: 01,3364 03403 TC WTLST2
050811,000315: 01,3365 00006 OCT 6
050812,000316:
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Page 1196 |
050814,000318: 01,3366 10000 +4 CCS A
050815,000319: 01,3367 61407 AD LST1 +7
050816,000320: 01,3370 13374 TCF +4
050817,000321: 01,3371 64712 AD ONE
050818,000322: 01,3372 03403 TC WTLST2
050819,000323: 01,3373 00007 OCT 7
050820,000324:
050821,000325: 01,3374 10000 +4 CCS A
050822,000326: 01,3375 05604 WTABORT TC BAILOUT # NO ROOM IN THE INN.
050823,000327: 01,3376 01203 OCT 1203
050824,000328:
050825,000329: 01,3377 64712 AD ONE
050826,000330: 01,3400 03403 TC WTLST2
050827,000331: 01,3401 00010 OCT 10
050828,000332:
050829,000333: 01,3402 40201 OCT40201 OCT 40201
050830,000334:
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Page 1197 |
050832,000336: # THE ENTRY TO WTLST2 JUST PRECEDING OCT N IS FOR T LE TD LE T -1.
050833,000337: # N N+1
050834,000338:
050835,000339: # (LE MEANS LESS THAN OR EQUAL TO). AT ENTRY, C(A) = -(TD - T + 1)
050836,000340: # N+1
050837,000341:
050838,000342: # THE LST1 ENTRY -(T - T +1) IS TO BE REPLACED BY -(TD - T + 1), AND
050839,000343: # N+1 N N
050840,000344:
050841,000345: # THE ENTRY -(T - TD + 1) IS TO BE INSERTED IMMEDIATELY FOLLOWING.
050842,000346: # N+1
050843,000347:
050844,000348: 01,3403 54064 WTLST2 TS WAITTEMP # C(A) = -(TD - T + 1)
050845,000349: 01,3404 50002 INDEX Q
050846,000350: 01,3405 30000 CAF 0
050847,000351: 01,3406 54002 TS Q # INDEX VALUE INTO Q.
050848,000352:
050849,000353: 01,3407 34712 CAF ONE
050850,000354: 01,3410 60064 AD WAITTEMP
050851,000355: 01,3411 50002 INDEX Q # C(A) = -(TD - T ) + 1.
050852,000356: 01,3412 27377 ADS LST1 -1 # N
050853,000357:
050854,000358: 01,3413 40064 CS WAITTEMP
050855,000359: 01,3414 50002 INDEX Q
050856,000360: 01,3415 13272 TCF WTLST4
050857,000361:
050858,000362: # C(TIME3) = 1.0 - (T1 - T)
050859,000363:
050860,000364: # C(LST1 ) = - (T2 - T1) + 1
050861,000365: # C(LST1+1) = - (T3 - T2) + 1
050862,000366: # C(LST1+2) = - (T4 - T3) + 1
050863,000367: # C(LST1+3) = - (T5 - T4) + 1
050864,000368: # C(LST1+4) = - (T6 - T5) + 1
050865,000369:
050866,000370: # C(LST2 ) = 2CADR TASK1
050867,000371: # C(LST2+2 ) = 2CADR TASK2
050868,000372: # C(LST2+4 ) = 2CADR TASK3
050869,000373: # C(LST2+6 ) = 2CADR TASK4
050870,000374: # C(LST2+8 ) = 2CADR TASK5
050871,000375: # C(LST2+10) = 2CADR TASK6
050872,000376:
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Page 1198 |
050874,000378: # ENTERS HERE ON T3 RUPT TO DISPATCH WAITLISTED TASK.
050875,000379:
050876,000380: 01,3416 00006 T3RUPT EXTEND
050877,000381: 01,3417 04007 ROR SUPERBNK # READ CURRENT SUPERBANK VALUE AND
050878,000382: 01,3420 54016 TS BANKRUPT # SAVE WITH E AND F BANK VALUES.
050879,000383: 01,3421 00006 EXTEND
050880,000384: 01,3422 22012 QXCH QRUPT
050881,000385:
050882,000386: 01,3423 34673 T3RUPT2 CAF NEG1/2 # DISPATCH WAITLIST TASK.
050883,000387: 01,3424 57407 XCH LST1 +7
050884,000388: 01,3425 57406 XCH LST1 +6
050885,000389: 01,3426 57405 XCH LST1 +5
050886,000390: 01,3427 57404 XCH LST1 +4 # 1. MOVE UP LST1 CONTENTS, ENTERING
050887,000391: 01,3430 57403 XCH LST1 +3 # A VALUE OF 1/2 +1 AT THE BOTTOM
050888,000392: 01,3431 57402 XCH LST1 +2 # FOR T6-T5, CORRESPONDING TO THE
050889,000393: 01,3432 57401 XCH LST1 +1 # INTERVAL 81.91 SEC FOR ENDTASK.
050890,000394: 01,3433 57400 XCH LST1
050891,000395: 01,3434 64672 AD POSMAX # 2. SET T3 = 1.0 - T2 - T USING LIST 1.
050892,000396: 01,3435 26026 ADS TIME3 # SO T3 WONT TICK DURING UPDATE.
050893,000397: 01,3436 54734 TS RUPTAGN
050894,000398: 01,3437 44714 CS ZERO
050895,000399: 01,3440 54734 TS RUPTAGN # SETS RUPTAGN TO +1 ON OVERFLOW.
050896,000400:
050897,000401: 01,3441 00006 EXTEND # DISPATCH TASK.
050898,000402: 01,3442 45174 DCS ENDTASK
050899,000403: 01,3443 53431 DXCH LST2 +16D
050900,000404: 01,3444 53427 DXCH LST2 +14D
050901,000405: 01,3445 53425 DXCH LST2 +12D
050902,000406: 01,3446 53423 DXCH LST2 +10D
050903,000407: 01,3447 53421 DXCH LST2 +8D
050904,000408: 01,3450 53417 DXCH LST2 +6
050905,000409: 01,3451 53415 DXCH LST2 +4
050906,000410: 01,3452 53413 DXCH LST2 +2
050907,000411: 01,3453 53411 DXCH LST2
050908,000412:
050909,000413: 01,3454 56001 XCH L
050910,000414: 01,3455 00006 EXTEND
050911,000415: 01,3456 01007 WRITE SUPERBNK # SET SUPERBANK FROM BBCON OF 2CADR
050912,000416: 01,3457 56001 XCH L # RESTORE TO L FOR DXCH Z.
050913,000417: 01,3460 52006 DTCB
050914,000418:
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050916,000420: # RETURN, AFTER EXECUTION OF T3 OVERFLOW TASK:
050917,000421:
050918,000422: 5213 BLOCK 02
050919,000423: 5213 COUNT 02/WAIT
050920,000424:
050921,000425: 5213 10734 TASKOVER CCS RUPTAGN # IF +1 RETURN TO T3RUPT, IF -0 RESUME.
050922,000426: 5214 35155 CAF WAITBB
050923,000427: 5215 54006 TS BBANK
050924,000428: 5216 13423 TCF T3RUPT2 # DISPATCH NEXT TASK IF IT WAS DUE.
050925,000429:
050926,000430: 5217 30016 CA BANKRUPT
050927,000431: 5220 00006 EXTEND
050928,000432: 5221 01007 WRITE SUPERBNK # RESTORE SUPERBANK BEFORE RESUME IS DONE
050929,000433:
050930,000434: 5222 00006 RESUME EXTEND
050931,000435: 5223 22012 QXCH QRUPT
050932,000436: 5224 30016 NOQRSM CA BANKRUPT
050933,000437: 5225 56006 XCH BBANK
050934,000438: 5226 52011 NOQBRSM DXCH ARUPT
050935,000439: 5227 00003 RELINT
050936,000440: 5230 50017 RESUME
050937,000441:
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Page 1200 |
050939,000443: # LONGCALL
050940,000444:
050941,000445: # PROGRAM DESCRIPTION DATE- 17 MARCH 1967
050942,000446: # PROGRAM WRITTEN BY W.H. VANDEVER LOG SECTION WAITLIST
050943,000447: # MOD BY- R. MELANSON TO ADD DOCUMENTATION ASSEMBLY SUNDISK REV. 100
050944,000448:
050945,000449: # FUNCTIONAL DESCRIPTION-
050946,000450: # LONGCALL IS CALLED WITH THE DELTA TIME ARRIVING IN A,L SCALED AS TIME2,TIME1 WITH THE 2CADR OF THE TASK
050947,000451: # IMMEDIATELY FOLLOWING THE TC LONGCALL. FOR EXAMPLE, IT MIGHT BE DONE AS FOLLOWS WHERE TIMELOC IS THE NAME OF
050948,000452: # A DP REGISTER CONTAINING A DELTA TIME AND WHERE TASKTODO IS THE NAME OF THE LOCATION AT WHICH LONGCALL IS TO
050949,000453: # START
050950,000454:
050951,000455: # CALLING SEQUENCE-
050952,000456: # EXTEND
050953,000457: # DCA TIMELOC
050954,000458: # TC LONGCALL
050955,000459: # 2CADR TASKTODO
050956,000460:
050957,000461: # NORMAL EXIT MODE-
050958,000462: # 1). TC WAITLIST
050959,000463: # 2). DTCB (TO L+3 OF CALLING ROUTINE 1ST PASS THRU LONGCYCL)
050960,000464: # 3). DTCB (TO TASKOVER ON SUBSEQUENT PASSES THRU LONGCYCL)
050961,000465:
050962,000466: # ALARM OR ABORT EXIT MODE-
050963,000467: # NONE
050964,000468:
050965,000469: # OUTPUT-
050966,000470: # LONGTIME AND LONGTIME+1 = DELTA TIME
050967,000471: # LONGEXIT AND LONGEXIT+1 = RETURN 2CADR
050968,000472: # LONGCADR AND LONGCADR+1 = TASK 2CADR
050969,000473: # A = SINGLE PRECISION TIME FOR WAITLIST
050970,000474:
050971,000475: # ERASABLE INITIALIZATION-
050972,000476: # A = MOST SIGNIFICANT PART OF DELTA TIME
050973,000477: # L = LEAST SIGNIFICANT PART OF DELTA TIME
050974,000478: # Q = ADDRESS OF 2CADR TASK VALUE
050975,000479:
050976,000480: # DEBRIS-
050977,000481: # A,Q,L
050978,000482: # LONGCADR AND LONGCADR+1
050979,000483: # LONGEXIT AND LONGEXIT+1
050980,000484: # LONGTIME AND LONGTIME+1
050981,000485:
050982,000486: # *** THE FOLLOWING IS TO BE IN FIXED-FIXED AND UNSWITCHED ERRASIBLE ***
050983,000487:
050984,000488: 5231 BLOCK 02
050985,000489: 5231 E3,1400 EBANK= LST1
050986,000490: 5231 53140 LONGCALL DXCH LONGTIME # OBTAIN THE DELTA TIME
050987,000491:
050988,000492: 5232 00006 EXTEND # OBTAIN THE 2CADR
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Page 1201 |
050990,000494: 5233 50002 NDX Q
050991,000495: 5234 30001 DCA 0
050992,000496: 5235 53134 DXCH LONGCADR
050993,000497:
050994,000498: 5236 00006 EXTEND # NOW GO TO THE APPROPRIATE SWITCHED BANK
050995,000499: 5237 35242 DCA LGCL2CDR # FOR THE REST OF LONGCALL
050996,000500: 5240 52006 DTCB
050997,000501:
050998,000502: 5241 E3,1400 EBANK= LST1
050999,000503: 5241 03461 02063 LGCL2CDR 2CADR LNGCALL2
051000,000504:
051001,000505: # *** THE FOLLOWING MAY BE IN A SWITCHED BANK, INCLUDING ITS ERASABLE ***
051002,000506:
051003,000507: 01,3461 BANK 01
051004,000508: 01,3461 COUNT 01/WAIT
051005,000509:
051006,000510: 01,3461 23435 LNGCALL2 LXCH LONGEXIT +1 # SAVE THE CORRECT BB FOR RETURN
051007,000511: 01,3462 34711 CA TWO # OBTAIN THE RETURN ADDRESS
051008,000512: 01,3463 26002 ADS Q
051009,000513: 01,3464 55434 TS LONGEXIT
051010,000514:
051011,000515: # *** WAITLIST TASK LONGCYCL ***
051012,000516: 01,3465 00006 LONGCYCL EXTEND # CAN WE SUCCESFULLY TAKE ABOUT 1.25
051013,000517: 01,3466 43477 DCS DPBIT14 # MINUTES OFF OF LONGTIME
051014,000518: 01,3467 21140 DAS LONGTIME
051015,000519:
051016,000520: 01,3470 11140 CCS LONGTIME +1 # THE REASONIBG BEHIND THIS PART IS
051017,000521: 01,3471 13510 TCF MUCHTIME # INVOLVED, TAKING INTO ACCOUNT THAT THE
051018,000522: # WORDS MAY NOT BE SIGNED CORRECTED (DP
051019,000523: # BASIC INSTRUCTIONS
051020,000524: # DO NOT SIGN CORRECT) AND THAT WE SUBTRAC
051021,000525: # TED BIT14 (1 OVER HALF THE POS. VALUE
051022,000526: # REPRESENTIBLE IN SINGLE WORD)
051023,000527: 01,3472 13473 NOOP # CAN:T GET HERE **********
051024,000528: 01,3473 13474 TCF +1
051025,000529: 01,3474 11137 CCS LONGTIME
051026,000530: 01,3475 13510 TCF MUCHTIME
051027,000531: 01,3476 00000 DPBIT14 OCT 00000
051028,000532: 01,3477 20000 OCT 20000
051029,000533:
051030,000534: # LONGCALL
051031,000535: 01,3500 34675 LASTTIME CA BIT14 # GET BACK THE CORRECT DELTA TFOR WAITLIST
051032,000536: 01,3501 27140 ADS LONGTIME +1
051033,000537: 01,3502 05140 TC WAITLIST
051034,000538: 01,3503 E3,1400 EBANK= LST1
051035,000539: 01,3503 03515 02063 2CADR GETCADR # THE ENTRY TO OUR LONGCADR
051036,000540:
051037,000541: 01,3505 33517 LONGRTRN CA TSKOVCDR # SET IT UP SO THAT ONLY THE FIRST EXIT IS
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Page 1202 |
051039,000543: 01,3506 53435 DXCH LONGEXIT # TO THE CALLER OF LONGCALL
051040,000544: 01,3507 52006 DTCB # THE REST ARE TO TASKOVER
051041,000545:
051042,000546: 01,3510 34675 MUCHTIME CA BIT14 # WE HAVE OVER OUR ABOUT 1.25 MINUTES
051043,000547: 01,3511 05140 TC WAITLIST # SO SET UP FOR ANOTHER CYCLE THROUGH HERE
051044,000548: 01,3512 E3,1400 EBANK= LST1
051045,000549: 01,3512 03465 02063 2CADR LONGCYCL
051046,000550:
051047,000551: 01,3514 13505 TCF LONGRTRN # NOW EXIT PROPERLY
051048,000552:
051049,000553: # *** WAITLIST TASK GETCADR ***
051050,000554: 01,3515 53134 GETCADR DXCH LONGCADR # GET THE LONGCALL THAT WE WISHED TO START
051051,000555: 01,3516 52006 DTCB # AND TRANSFER CONTROL TO IT
051052,000556:
051053,000557: 01,3517 05213 TSKOVCDR GENADR TASKOVER
End of include-file WAITLIST.agc. Parent file is MAIN.agc