Source Code
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These source-code files derive from a printout of Luminary 116 (the Apollo 12
Lunar Module guidance computer program), from the personal library of
original AGC developer Don Eyles, digitally photographed at archive.org,
financially sponsored by Ron Burkey, and transcribed to source code by a
team of volunteers. This colorized, syntax-highlighted form was created
by assembling that transcribed source code. Note that the full page images
are available on the
Virtual AGC project page at archive.org, while reduced-size images
are presented at the VirtualAGC project website. Report or fix any
transcription errors at
the Virtual AGC project code repository. Notations on the program listing read, in part: GAP: ASSEMBLE REVISION 116 OF AGC PROGRAM LUMINARY BY NASA 2021112-071 19:09 AUG. 11,1969Note that the date is the date of the printout, not the date of the program revision. |
046893,000002: ## Copyright: Public domain.
046894,000003: ## Filename: WAITLIST.agc
046895,000004: ## Purpose: A section of Luminary revision 116.
046896,000005: ## It is part of the source code for the Lunar Module's (LM)
046897,000006: ## Apollo Guidance Computer (AGC) for Apollo 12.
046898,000007: ## This file is intended to be a faithful transcription, except
046899,000008: ## that the code format has been changed to conform to the
046900,000009: ## requirements of the yaYUL assembler rather than the
046901,000010: ## original YUL assembler.
046902,000011: ## Reference: pp. 1109-1124
046903,000012: ## Assembler: yaYUL
046904,000013: ## Contact: Ron Burkey <info@sandroid.org>.
046905,000014: ## Website: www.ibiblio.org/apollo/index.html
046906,000015: ## Mod history: 2017-01-22 MAS Created from Luminary 99.
046907,000016: ## 2017-01-28 RSB WTIH -> WITH.
046908,000017: ## 2017-02-09 RSB Comment-text fixes identified in proofing Artemis 72
046909,000018: ## 2017-02-27 RSB Corrected WAITP00H and LONGP00H to similar POOH names.
046910,000019: ## 2017-03-10 HG Transcribed
046911,000020: ## 2017-03-14 RSB Proofed comment text via 3-way diff vs
046912,000021: ## Luminary 99 and 131.
046913,000022: ## 2017-03-16 RSB Comment-text fixes identified in 5-way
046914,000023: ## side-by-side diff of Luminary 69/99/116/131/210.
046915,000024: ## 2017-03-19 HG Fix value OCT 01204 -> OCT 21204
046916,000025:
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Page 1109 |
046918,000027: # PROGRAM DESCRIPTION DATE - 10 OCTOBER 1966
046919,000028: # MOD NO - 2 LOG SECTION - WAITLIST
046920,000029: # MOD BY - MILLER (DTMAX INCREASED TO 162.5 SEC) ASSEMBLY SUNBURST REV 5
046921,000030: # MOD 3 BY KERNAN (INHINT INSERTED AT WAITLIST) 2/28/68 SKIPPER REV 4
046922,000031:
046923,000032: # MOD 4BY KERNAN (TWIDDLE IN 54) 3/28/68 SKIPPER REV 13.
046924,000033:
046925,000034:
046926,000035: # FUNCTIONAL DESCRIPTION -
046927,000036: # PART OF A SECTION OF PROGRAMS,-WAITLIST, TASKOVER, T3RUPT, USED TO CALL A PROGRAM, (CALLED A TASK),
046928,000037: # WHICH IS TO BEGIN IN C(A) CENTISECONDS. WAITLIST UPDATES TIME3, LST1 AND LST2. THE MEANING OF THESE LISTS
046929,000038: # FOLLOW.
046930,000039:
046931,000040: # C(TIME3) = 16384 -(T1-T) CENTISECONDS, (T=PRESENT TIME, T1-TIME FOR TASK1)
046932,000041:
046933,000042:
046934,000043: # C(LST1) = -(T2-T1)+1
046935,000044: # C(LST1 +1) = -(T3-T2)+1
046936,000045: # C(LST1 +2) = -(T4-T3)+1
046937,000046: # .
046938,000047: # .
046939,000048: # C(LST1 +6) = -(T8-T7)+1
046940,000049: # C(LST1 +7) = -(T9-T8)+1
046941,000050:
046942,000051: # C(LST2) = 2CADR OF TASK1
046943,000052: # C(LST2 +2) = 2CADR OF TASK2
046944,000053: # .
046945,000054: # .
046946,000055: # C(LST2 +14)= 2CADR OF TASK8
046947,000056: # C(LST2 +16)= 2CADR OF TASK9
046948,000057:
046949,000058: # WARNINGS -
046950,000059: # --------
046951,000060: # 1) 1 <= C(A) <= 16250D (1 CENTISECOND TO 162.5 SEC)
046952,000061: # 2) 9 TASKS MAXIMUM
046953,000062: # 3) TASKS CALLED UNDER INTERRUPT INHIBITED
046954,000063: # 4) TASKS END BY TC TASKOVER
046955,000064:
046956,000065: # CALLING SEQUENCE -
046957,000066:
046958,000067: # L-1 CA DELTAT (TIME IN CENTISECONDS TO TASK START)
046959,000068: # L TC WAITLIST
046960,000069: # L+1 2CADR DESIRED TASK
046961,000070: # L+2 (MINOR OF 2CADR)
046962,000071: # L+3 RELINT (RETURNS HERE)
046963,000072:
046964,000073: # TWIDDLE -
046965,000074: # -------
046966,000075: # TWIDDLE IS FOR USE WHEN THE TASK BEING SET UP IS IN THE SAME EBANK AND FBANK AS THE USER. IN
046967,000076: # SUCH CASES, IT IMPROVES UPON WAITLIST BY ELIMINATING THE NEED FOR THE BBCON HALF OF THE 2CADR,
046968,000077:
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Page 1110 |
046970,000079: # SAVING A WORD. TWIDDLE IS LIKE WAITLIST IN EVERY RESPECT EXCEPT CALLING SEQUENCE, TO WIT-
046971,000080: # L-1 CA DELTAT
046972,000081: # L TC TWIDDLE
046973,000082: # L+1 ADRES DESIRED TASK
046974,000083: # L+2 RELINT (RETURNS HERE)
046975,000084:
046976,000085: # NORMAL EXIT MODES -
046977,000086:
046978,000087: # AT L+3 OF CALLING SEQUENCE
046979,000088:
046980,000089: # ALARM OR ABORT EXIT MODES -
046981,000090:
046982,000091: # TC ABORT
046983,000092: # OCT 1203 (WAITLIST OVERFLOW - TOO MANY TASKS)
046984,000093:
046985,000094: # ERASABLE INITIALIZATION REQUIRED-
046986,000095:
046987,000096: # ACCOMPLISHED BY FRESH START,--LST2,..., LST2 +16 =ENDTASK
046988,000097: # LST1,..., LST1 +7 =NEG1/2
046989,000098:
046990,000099: # OUTPUT--
046991,000100:
046992,000101: # LST1 AND LST2 UPDATED WITH NEW TASK AND ASSOCIATED TIME.
046993,000102:
046994,000103: # DEBRIS-
046995,000104:
046996,000105: # CENTRALS- A,Q,L
046997,000106: # OTHER - WAITEXIT, WAITADR, WAITTEMP, WAITBANK
046998,000107: # DETAILED ANALYSIS OF TIMING-
046999,000108:
047000,000109: # CONTROL WILL NOT BE RETURNED TO THE SPECIFIED ADDRESS (2CADR) IN EXACTLY DELTA T CENTISECONDS.
047001,000110: # THE APPROXIMATE TIME MAY BE CALCULATED AS FOLLOWS
047002,000111:
047003,000112: # LET TO = THE TIME OF THE TC WAITLIST
047004,000113: # LET TS = TO +147U + COUNTER INCREMENTS (SET UP TIME)
047005,000114: # LET X = TS -(100TS)/100 (VARIANCE FROM COUNTERS)
047006,000115: # LET Y = LENGTH OF TIME OF INHIBIT INTERRUPT AFTER T3RUPT
047007,000116: # LET Z = LENGTH OF TIME TO PROCESS TASKS WHICH ARE DUE THIS T3RUPT BUT DISPATCHED EARLIER.
047008,000117: # (Z=0, USUALLY)
047009,000118: # LET DELTD = THE ACTUAL TIME TAKEN TO GIVE CONTROL TO 2CADR
047010,000119: # THEN DELTD = TS+DELTA T -X +Y +Z +1.05MS* +COUNTERS*
047011,000120: # *-THE TIME TAKEN BY WAITLIST ITSELF AND THE COUNTER TICKING DURING THIS WAITLIST TIME.
047012,000121:
047013,000122:
047014,000123: # IN SHORT, THE ACTUAL TIME TO RETURN CONTROL TO A 2CADR IS AUGMENTED BY THE TIME TO SET UP THE TASK:S
047015,000124: # INTERRUPT, ALL COUNTERS TICKING, THE T3RUPT PROCESSING TIME, THE WAITLIST PROCESSING TIME AND THE POSSIBILITY
047016,000125: # OF OTHER TASKS INHIBITING THE INTERRUPT.
047017,000126:
047018,000127: 5173 BLOCK 02
047019,000128:
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Page 1111 |
047021,000130: 5173 E3,1400 EBANK= LST1 # TASK LISTS IN SWITCHED E BANK.
047022,000131:
047023,000132: 5173 COUNT* $$/WAIT
047024,000133: 5173 00004 TWIDDLE INHINT
047025,000134: 5174 54001 TS L # SAVE DELAY TIME IN L
047026,000135: 5175 34733 CA POSMAX
047027,000136: 5176 26002 ADS Q # CREATING OVERFLOW AND Q-1 IN Q
047028,000137: 5177 30006 CA BBANK
047029,000138: 5200 00006 EXTEND
047030,000139: 5201 04007 ROR SUPERBNK
047031,000140: 5202 56001 XCH L
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Note: The above thre statements are marked in black ink with a right open brace to the left of the statements. |
047033,000142:
047034,000143: 5203 00004 WAITLIST INHINT
047035,000144: 5204 56002 XCH Q # SAVE DELTA T IN Q AND RETURN IN
047036,000145: 5205 54061 TS WAITEXIT # WAITEXIT.
047037,000146: 5206 00006 EXTEND
047038,000147: 5207 50061 INDEX WAITEXIT # IF TWIDDLING, THE TS SKIPS TO HERE
047039,000148: 5210 30001 DCA 0 # PICK UP 2CADR OF TASK.
047040,000149: 5211 54063 -1 TS WAITADR # BBCON WILL REMAIN IN L
047041,000150: 5212 35220 DLY2 CAF WAITBB # ENTRY FROM FIXDELAY AND VARDELAY.
047042,000151: 5213 56006 XCH BBANK
047043,000152: 5214 13232 TCF WAIT2
047044,000153:
047045,000154: # RETURN TO CALLER AFTER TASK INSERTION:
047046,000155:
047047,000156: 5215 52062 LVWTLIST DXCH WAITEXIT
047048,000157: 5216 64752 AD TWO
047049,000158: 5217 52006 DTCB
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Note: In the comment section of the above three statements a small drawing in black pen can be found made of two horizontal lines
and a small circle. The lines are of similar length. The left line ends at the cicumference of the circle, the right line starts
at the center of the circle similar to
_ _ / \ __________ / ___\_________ \ / \ / -- |
047060,000169: 5220 E3,1400 EBANK= LST1
047061,000170: 5220 02063 WAITBB BBCON WAIT2
047062,000171:
047063,000172: # RETURN TO CALLER +2 AFTER WAITING DT SPECIFIED AT CALLER +1.
047064,000173:
047065,000174: 5221 50002 FIXDELAY INDEX Q # BOTH ROUTINES MUST BE CALLED UNDER
047066,000175: 5222 30000 CAF 0 # WAITLIST CONTROL AND TERMINATE THE TASK
047067,000176: 5223 24002 INCR Q # IN WHICH THEY WERE CALLED.
047068,000177:
047069,000178: # RETURN TO CALLER +1 AFTER WAITING THE DT AS ARRIVING IN A.
047070,000179:
047071,000180: 5224 56002 VARDELAY XCH Q # DT TO Q. TASK ADRES TO WAITADR.
047072,000181: 5225 54063 TS WAITADR
047073,000182: 5226 30006 CA BBANK # BBANK IS SAVED DURING DELAY.
047074,000183: 5227 00006 EXTEND
047075,000184: 5230 04007 ROR SUPERBNK # ADD SBANK TO BBCON.
047076,000185: 5231 54001 TS L
047077,000186: 5232 35235 CAF DELAYEX
047078,000187: 5233 54061 TS WAITEXIT # GO TO TASKOVER AFTER TASK ENTRY.
047079,000188: 5234 15212 TCF DLY2
047080,000189:
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Page 1112 |
047082,000191: 5235 15257 DELAYEX TCF TASKOVER -2 # RETURNS TO TASKOVER
047083,000192:
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Page 1113 |
047085,000194: # ENDTASK MUST BE ENTERED IN FIXED-FIXED SO IT IS DISTINGUISHABLE BY ITS ADRES ALONE.
047086,000195:
047087,000196: 5236 E3,1400 EBANK= LST1
047088,000197: 5236 72537 73714 ENDTASK -2CADR SVCT3
047089,000198:
047090,000199: 5240 10076 SVCT3 CCS FLAGWRD2 # DRIFT FLAG
047091,000200: 5241 15261 TCF TASKOVER
047092,000201: 5242 15261 TCF TASKOVER
047093,000202: 5243 15244 TCF +1
047094,000203:
047095,000204: 5244 11301 CKIMUSE CCS IMUCADR # DON'T DO NBDONLY IF SOMEONE ELSE IS IN
047096,000205: 5245 15256 TCF SVCT3X # IMUSTALL.
047097,000206: 5246 15251 TCF +3
047098,000207: 5247 15256 TCF SVCT3X
047099,000208: 5250 15256 TCF SVCT3X
047100,000209:
047101,000210: 5251 37726 +3 CAF PRIO35 # COMPENSATE FOR NBD COEFFICIENTS ONLY.
047102,000211: 5252 05072 TC NOVAC # ENABLE EVERY 81.93 SECONDS
047103,000212: 5253 E3,1460 EBANK= NBDX
047104,000213: 5253 03563 14063 2CADR NBDONLY
047105,000214: 5255 15261 TCF TASKOVER
047106,000215:
047107,000216: 5256 05221 SVCT3X TC FIXDELAY # DELAY MAX OF 2 TIMES FOR IMUZERO.
047108,000217: 5257 00764 DEC 500 B-14
047109,000218: 5260 05240 TC SVCT3 # CHECK DRIFT FLAG AGAIN.
047110,000219:
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Page 1114 |
047112,000221: # BEGIN TASK INSERTION.
047113,000222:
047114,000223: 01,3232 BANK 01
047115,000224: 01,3232 COUNT* $$/WAIT
047116,000225: 01,3232 54062 WAIT2 TS WAITBANK # BBANK OF CALLING PROGRAM.
047117,000226: 01,3233 30002 CA Q
047118,000227: 01,3234 00006 EXTEND
047119,000228: 01,3235 63524 BZMF WAITPOOH
047120,000229:
047121,000230: 01,3236 40026 CS TIME3
047122,000231: 01,3237 64744 AD BIT8 # BIT 8 = OCT 200
047123,000232: 01,3240 10000 CCS A # TEST 200 - C(TIME3). IF POSITIVE,
047124,000233: # IT MEANS THAT TIME3 OVERFLOW HAS OCCURRED PRIOR TO CS TIME3 AND THAT
047125,000234: # C(TIME3) = T - T1, INSTEAD OF 1.0 - (T1 - T). THE FOLLOWING FOUR
047126,000235: # ORDERS SET C(A) = TD - T1 + 1 IN EITHER CASE.
047127,000236:
047128,000237: 01,3241 66112 AD OCT40001 # OVERFLOW HAS OCCURRED. SET C(A) =
047129,000238: 01,3242 40000 CS A # T - T1 + 1.0 - 201
047130,000239:
047131,000240: # NORMAL CASE (C(A) NNZ) YIELDS SAME C(A): -( -(1.0-(T1-T)) + 200) - 1
047132,000241:
047133,000242: 01,3243 63371 AD OCT40201
047134,000243: 01,3244 60002 AD Q # RESULT = TD - T1 + 1.
047135,000244:
047136,000245: 01,3245 10000 CCS A # TEST TD - T1 + 1
047137,000246:
047138,000247: 01,3246 61400 AD LST1 # IF TD - T1 POS, GO TO WTLST5 WITH
047139,000248: 01,3247 13311 TCF WTLST5 # C(A) = (TD - T1) + C(LST1) = TD-T2+1
047140,000249:
047141,000250: 01,3250 13251 NOOP
047142,000251: 01,3251 40002 CS Q
047143,000252:
047144,000253: # NOTE THAT THIS PROGRAM SECTION IS NEVER ENTERED WHEN T-T1 G/E -1,
047145,000254: # SINCE TD-T1+1 = (TD-T) + (T-T1+1), AND DELTA T = TD-T G/E +1 . (G/E
047146,000255: # SYMBOL MEANS GREATER THAN OR EQUAL TO). THUS THERE NEED BE NO CON-
047147,000256: # CERN OVER A PREVIOUS OR IMMINENT OVERFLOW OF TIME3 HERE.
047148,000257:
047149,000258: 01,3252 64736 AD POS1/2 # WHEN TD IS NEXT, FORM QUANTITY
047150,000259: 01,3253 64736 AD POS1/2 # 1.0 - DELTA T = 1.0 - (TD - T)
047151,000260: 01,3254 56026 XCH TIME3
047152,000261: 01,3255 64735 AD NEGMAX
047153,000262: 01,3256 60002 AD Q # 1.0 - DELTAT T NOW COMPLETE.
047154,000263: 01,3257 00006 EXTEND # ZERO INDEX Q.
047155,000264: 01,3260 22007 QXCH 7 # (ZQ)
047156,000265:
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Page 1115 |
047158,000267: 01,3261 57400 WTLST4 XCH LST1
047159,000268: 01,3262 57401 XCH LST1 +1
047160,000269: 01,3263 57402 XCH LST1 +2
047161,000270: 01,3264 57403 XCH LST1 +3
047162,000271: 01,3265 57404 XCH LST1 +4
047163,000272: 01,3266 57405 XCH LST1 +5
047164,000273: 01,3267 57406 XCH LST1 +6
047165,000274: 01,3270 57407 XCH LST1 +7
047166,000275:
047167,000276: 01,3271 30063 CA WAITADR # (MINOR PART OF TASK CADR HAS BEEN IN L.)
047168,000277: 01,3272 50002 INDEX Q
047169,000278: 01,3273 13274 TCF +1
047170,000279:
047171,000280: 01,3274 53411 DXCH LST2
047172,000281: 01,3275 53413 DXCH LST2 +2
047173,000282: 01,3276 53415 DXCH LST2 +4
047174,000283: 01,3277 53417 DXCH LST2 +6
047175,000284: 01,3300 53421 DXCH LST2 +8D
047176,000285: 01,3301 53423 DXCH LST2 +10D # AT END, CHECK THAT C(LST2+10) IS STD
047177,000286: 01,3302 53425 DXCH LST2 +12D
047178,000287: 01,3303 53427 DXCH LST2 +14D
047179,000288: 01,3304 53431 DXCH LST2 +16D
047180,000289: 01,3305 65236 AD ENDTASK # END ITEM, AS CHECK FOR EXCEEDING
047181,000290: # THE LENGTH OF THE LIST.
047182,000291: 01,3306 00006 EXTEND # DUMMY TASK ADRES SHOULD BE IN FIXED-
047183,000292: 01,3307 15215 BZF LVWTLIST # FIXED SO ITS ADRES ALONE DISTINGUISHES
047184,000293: 01,3310 13364 TCF WTABORT # IT.
047185,000294:
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Page 1116 |
047187,000296: 01,3311 10000 WTLST5 CCS A # TEST TD - T2 + 1
047188,000297: 01,3312 61401 AD LST1 +1
047189,000298: 01,3313 13317 TCF +4
047190,000299: 01,3314 64753 AD ONE
047191,000300: 01,3315 03375 TC WTLST2
047192,000301: 01,3316 00001 OCT 1
047193,000302:
047194,000303: 01,3317 10000 +4 CCS A # TEST TD - T3 + 1
047195,000304: 01,3320 61402 AD LST1 +2
047196,000305: 01,3321 13325 TCF +4
047197,000306: 01,3322 64753 AD ONE
047198,000307: 01,3323 03375 TC WTLST2
047199,000308: 01,3324 00002 OCT 2
047200,000309:
047201,000310: 01,3325 10000 +4 CCS A # TEST TD - T4 + 1
047202,000311: 01,3326 61403 AD LST1 +3
047203,000312: 01,3327 13333 TCF +4
047204,000313: 01,3330 64753 AD ONE
047205,000314: 01,3331 03375 TC WTLST2
047206,000315: 01,3332 00003 OCT 3
047207,000316:
047208,000317: 01,3333 10000 +4 CCS A # TEST TD - T5 + 1
047209,000318: 01,3334 61404 AD LST1 +4
047210,000319: 01,3335 13341 TCF +4
047211,000320: 01,3336 64753 AD ONE
047212,000321: 01,3337 03375 TC WTLST2
047213,000322: 01,3340 00004 OCT 4
047214,000323:
047215,000324: 01,3341 10000 +4 CCS A # TEST TD - T6 + 1
047216,000325: 01,3342 61405 AD LST1 +5
047217,000326: 01,3343 13347 TCF +4
047218,000327: 01,3344 64753 AD ONE
047219,000328: 01,3345 03375 TC WTLST2
047220,000329: 01,3346 00005 OCT 5
047221,000330:
047222,000331: 01,3347 10000 +4 CCS A # TEST TD - T7 + 1
047223,000332: 01,3350 61406 AD LST1 +6
047224,000333: 01,3351 13355 TCF +4
047225,000334: 01,3352 64753 AD ONE
047226,000335: 01,3353 03375 TC WTLST2
047227,000336: 01,3354 00006 OCT 6
047228,000337:
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Page 1117 |
047230,000339: 01,3355 10000 +4 CCS A
047231,000340: 01,3356 61407 AD LST1 +7
047232,000341: 01,3357 13363 TCF +4
047233,000342: 01,3360 64753 AD ONE
047234,000343: 01,3361 03375 TC WTLST2
047235,000344: 01,3362 00007 OCT 7
047236,000345:
047237,000346: 01,3363 10000 +4 CCS A
047238,000347: 01,3364 03372 WTABORT TC FILLED
047239,000348: 01,3365 13366 NOOP # CAN'T GET HERE
047240,000349: 01,3366 64753 AD ONE
047241,000350: 01,3367 03375 TC WTLST2
047242,000351: 01,3370 00010 OCT 10
047243,000352:
047244,000353: 01,3371 40201 OCT40201 OCT 40201
047245,000354:
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Page 1118 |
047247,000356: 01,3372 52062 FILLED DXCH WAITEXIT
047248,000357: 01,3373 05706 TC BAILOUT1 # NO ROOM IN THE INN
047249,000358: 01,3374 31203 OCT 31203
047250,000359:
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Page 1119 |
047252,000361: # THE ENTRY TO WTLST2 JUST PRECEDING OCT N IS FOR T LE TD LE T -1.
047253,000362: # N N+1
047254,000363:
047255,000364: # (LE MEANS LESS THAN OR EQUAL TO). AT ENTRY, C(A) = -(TD - T + 1)
047256,000365: # N+1
047257,000366:
047258,000367: # THE LST1 ENTRY -(T - T +1) IS TO BE REPLACED BY -(TD - T + 1), AND
047259,000368: # N+1 N N
047260,000369:
047261,000370: # THE ENTRY -(T - TD + 1) IS TO BE INSERTED IMMEDIATELY FOLLOWING.
047262,000371: # N+1
047263,000372:
047264,000373: 01,3375 54064 WTLST2 TS WAITTEMP # C(A) = -(TD - T + 1)
047265,000374: 01,3376 50002 INDEX Q
047266,000375: 01,3377 30000 CAF 0
047267,000376: 01,3400 54002 TS Q # INDEX VALUE INTO Q.
047268,000377:
047269,000378: 01,3401 34753 CAF ONE
047270,000379: 01,3402 60064 AD WAITTEMP
047271,000380: 01,3403 50002 INDEX Q # C(A) = -(TD - T ) + 1.
047272,000381: 01,3404 27377 ADS LST1 -1 # N
047273,000382:
047274,000383: 01,3405 40064 CS WAITTEMP
047275,000384: 01,3406 50002 INDEX Q
047276,000385: 01,3407 13261 TCF WTLST4
047277,000386:
047278,000387: # C(TIME3) = 1.0 - (T1 - T)
047279,000388:
047280,000389: # C(LST1 ) = - (T2 - T1) + 1
047281,000390: # C(LST1+1) = - (T3 - T2) + 1
047282,000391: # C(LST1+2) = - (T4 - T3) + 1
047283,000392: # C(LST1+3) = - (T5 - T4) + 1
047284,000393: # C(LST1+4) = - (T6 - T5) + 1
047285,000394:
047286,000395: # C(LST2 ) = 2CADR TASK1
047287,000396: # C(LST2+2 ) = 2CADR TASK2
047288,000397: # C(LST2+4 ) = 2CADR TASK3
047289,000398: # C(LST2+6 ) = 2CADR TASK4
047290,000399: # C(LST2+8 ) = 2CADR TASK5
047291,000400: # C(LST2+10) = 2CADR TASK6
047292,000401:
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Page 1120 |
047294,000403: # ENTERS HERE ON T3 RUPT TO DISPATCH WAITLISTED TASK.
047295,000404:
047296,000405: 01,3410 00006 T3RUPT EXTEND
047297,000406: 01,3411 04007 ROR SUPERBNK # READ CURRENT SUPERBANK VALUE AND
047298,000407: 01,3412 54016 TS BANKRUPT # SAVE WITH E AND F BANK VALUES.
047299,000408: 01,3413 00006 EXTEND
047300,000409: 01,3414 22012 QXCH QRUPT
047301,000410:
047302,000411: 01,3415 34734 T3RUPT2 CAF NEG1/2 # DISPATCH WAITLIST TASK.
047303,000412: 01,3416 57407 XCH LST1 +7
047304,000413: 01,3417 57406 XCH LST1 +6
047305,000414: 01,3420 57405 XCH LST1 +5
047306,000415: 01,3421 57404 XCH LST1 +4 # 1. MOVE UP LST1 CONTENTS, ENTERING
047307,000416: 01,3422 57403 XCH LST1 +3 # A VALUE OF 1/2 +1 AT THE BOTTOM
047308,000417: 01,3423 57402 XCH LST1 +2 # FOR T6-T5, CORRESPONDING TO THE
047309,000418: 01,3424 57401 XCH LST1 +1 # INTERVAL 81.91 SEC FOR ENDTASK.
047310,000419: 01,3425 57400 XCH LST1
047311,000420: 01,3426 64733 AD POSMAX # 2. SET T3 = 1.0 - T2 -T USING LIST 1.
047312,000421: 01,3427 26026 ADS TIME3 # SO T3 WONT TICK DURING UPDATE.
047313,000422: 01,3430 54332 TS RUPTAGN
047314,000423: 01,3431 44755 CS ZERO
047315,000424: 01,3432 54332 TS RUPTAGN # SETS RUPTAGN TO +1 ON OVERFLOW.
047316,000425:
047317,000426: 01,3433 00006 EXTEND # DISPATCH TASK.
047318,000427: 01,3434 45237 DCS ENDTASK
047319,000428: 01,3435 53431 DXCH LST2 +16D
047320,000429: 01,3436 53427 DXCH LST2 +14D
047321,000430: 01,3437 53425 DXCH LST2 +12D
047322,000431: 01,3440 53423 DXCH LST2 +10D
047323,000432: 01,3441 53421 DXCH LST2 +8D
047324,000433: 01,3442 53417 DXCH LST2 +6
047325,000434: 01,3443 53415 DXCH LST2 +4
047326,000435: 01,3444 53413 DXCH LST2 +2
047327,000436: 01,3445 53411 DXCH LST2
047328,000437:
047329,000438: 01,3446 56001 XCH L
047330,000439: 01,3447 00006 EXTEND
047331,000440: 01,3450 01007 WRITE SUPERBNK # SET SUPERBANK FROM BBCON OF 2CADR
047332,000441: 01,3451 56001 XCH L # RESTORE TO L FOR DXCH Z.
047333,000442: 01,3452 52006 DTCB
047334,000443:
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Page 1121 |
047336,000445: # RETURN, AFTER EXECUTION OF T3 OVERFLOW TASK:
047337,000446:
047338,000447: 5261 BLOCK 02
047339,000448: 5261 COUNT* $$/WAIT
047340,000449: 5261 10332 TASKOVER CCS RUPTAGN # IF +1 RETURN TO T3RUPT, IF -0 RESUME.
047341,000450: 5262 35220 CAF WAITBB
047342,000451: 5263 54006 TS BBANK
047343,000452: 5264 13415 TCF T3RUPT2 # DISPATCH NEXT TASK IF IT WAS DUE.
047344,000453:
047345,000454: 5265 30016 CA BANKRUPT
047346,000455: 5266 00006 EXTEND
047347,000456: 5267 01007 WRITE SUPERBNK # RESTORE SUPERBANK BEFORE RESUME IS DONE
047348,000457:
047349,000458: 5270 00006 RESUME EXTEND
047350,000459: 5271 22012 QXCH QRUPT
047351,000460: 5272 30016 NOQRSM CA BANKRUPT
047352,000461: 5273 56006 XCH BBANK
047353,000462: 5274 52011 NOQBRSM DXCH ARUPT
047354,000463: 5275 00003 RELINT
047355,000464: 5276 50017 RESUME
047356,000465:
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Page 1122 |
047358,000467: # LONGCALL
047359,000468:
047360,000469: # PROGRAM DESCRIPTION DATE- 17 MARCH 1967
047361,000470: # PROGRAM WRITTEN BY W.H. VANDEVER LOG SECTION WAITLIST
047362,000471: # MOD BY- R. MELANSON TO ADD DOCUMENTATION ASSEMBLY SUNDISK REV. 100
047363,000472:
047364,000473: # FUNCTIONAL DESCRIPTION-
047365,000474: # LONGCALL IS CALLED WITH THE DELTA TIME ARRIVING IN A,L SCALED AS TIME2,TIME1 WITH THE 2CADR OF THE TASK
047366,000475: # IMMEDIATELY FOLLOWING THE TC LONGCALL. FOR EXAMPLE, IT MIGHT BE DONE AS FOLLOWS WHERE TIMELOC IS THE NAME OF
047367,000476: # A DP REGISTER CONTAINING A DELTA TIME AND WHERE TASKTODO IS THE NAME OF THE LOCATION AT WHICH LONGCALL IS TO
047368,000477: # START
047369,000478:
047370,000479: # CALLING SEQUENCE-
047371,000480: # EXTEND
047372,000481: # DCA TIMELOC
047373,000482: # TC LONGCALL
047374,000483: # 2CADR TASKTODO
047375,000484:
047376,000485: # NORMAL EXIT MODE-
047377,000486: # 1). TC WAITLIST
047378,000487: # 2). DTCB (TO L+3 OF CALLING ROUTINE 1ST PASS THRU LONGCYCL)
047379,000488: # 3). DTCB (TO TASKOVER ON SUBSEQUENT PASSES THRU LONGCYCL)
047380,000489:
047381,000490: # ALARM OR ABORT EXIT MODE-
047382,000491: # NONE
047383,000492:
047384,000493: # OUTPUT-
047385,000494: # LONGTIME AND LONGTIME+1 = DELTA TIME
047386,000495: # LONGEXIT AND LONGEXIT+1 = RETURN 2CADR
047387,000496: # LONGCADR AND LONGCADR+1 = TASK 2CADR
047388,000497: # A = SINGLE PRECISION TIME FOR WAITLIST
047389,000498:
047390,000499: # ERASABLE INITIALIZATION-
047391,000500: # A = MOST SIGNIFICANT PART OF DELTA TIME
047392,000501: # L = LEAST SIGNIFICANT PART OF DELTA TIME
047393,000502: # Q = ADDRESS OF 2CADR TASK VALUE
047394,000503:
047395,000504: # DEBRIS-
047396,000505: # A,Q,L
047397,000506: # LONGCADR AND LONGCADR+1
047398,000507: # LONGEXIT AND LONGEXIT+1
047399,000508: # LONGTIME AND LONGTIME+1
047400,000509:
047401,000510: # *** THE FOLLOWING IS TO BE IN FIXED-FIXED AND UNSWITCHED ERRASIBLE ***
047402,000511:
047403,000512: 5277 BLOCK 02
047404,000513: 5277 E3,1400 EBANK= LST1
047405,000514: 5277 53153 LONGCALL DXCH LONGTIME # OBTAIN THE DELTA TIME
047406,000515:
047407,000516: 5300 00006 EXTEND # OBTAIN THE 2CADR
047408,000517:
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Page 1123 |
047410,000519: 5301 50002 NDX Q
047411,000520: 5302 30001 DCA 0
047412,000521: 5303 53147 DXCH LONGCADR
047413,000522:
047414,000523: 5304 00006 EXTEND # NOW GO TO THE APPROPRIATE SWITCHED BANK
047415,000524: 5305 35310 DCA LGCL2CDR # FOR THE REST OF LONGCALL
047416,000525: 5306 52006 DTCB
047417,000526:
047418,000527: 5307 E3,1400 EBANK= LST1
047419,000528: 5307 03453 02063 LGCL2CDR 2CADR LNGCALL2
047420,000529:
047421,000530: # *** THE FOLLOWING MAY BE IN A SWITCHED BANK, INCLUDING ITS ERASABLE ***
047422,000531:
047423,000532: 01,3453 BANK 01
047424,000533: 01,3453 COUNT* $$/WAIT
047425,000534: 01,3453 23435 LNGCALL2 LXCH LONGEXIT +1 # SAVE THE CORRECT BB FOR RETURN
047426,000535: 01,3454 34752 CA TWO # OBTAIN THE RETURN ADDRESS
047427,000536: 01,3455 26002 ADS Q
047428,000537: 01,3456 55434 TS LONGEXIT
047429,000538:
047430,000539: 01,3457 31152 CA LONGTIME # CHECK FOR LEGITIMATE DELTA-TIME
047431,000540: 01,3460 10000 CCS A
047432,000541: 01,3461 13467 TCF LONGCYCL # HI-ORDER OK --> ALL IS OK.
047433,000542: 01,3462 13464 TCF +2 # HI-ORDER ZERO --> CHECK LO-ORDER.
047434,000543: 01,3463 13522 TCF LONGPOOH # HI-ORDER NEG. --> NEG. DT
047435,000544: 01,3464 31153 +2 CA LONGTIME +1 # CHECK LO-ORDER FOR ZERO OR NEGATIVE.
047436,000545: 01,3465 00006 EXTEND
047437,000546: 01,3466 63522 BZMF LONGPOOH # BAD DELTA-TIME. ABORT
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Note: The above statement (opcode to the end of operand) is undelined with red ink The generated address (01,3466) and the generated octal code (6 3522) including parity (1) are circled in red (single "circle") |
047440,000549:
047441,000550: # *** WAITLIST TASK LONGCYCL ***
047442,000551: 01,3467 00006 LONGCYCL EXTEND # CAN WE SUCCESFULLY TAKE ABOUT 1.25
047443,000552: 01,3470 43501 DCS DPBIT14 # MINUTES OFF OF LONGTIME
047444,000553: 01,3471 21153 DAS LONGTIME
047445,000554:
047446,000555: 01,3472 11153 CCS LONGTIME +1 # THE REASONIBG BEHIND THIS PART IS
047447,000556: 01,3473 13512 TCF MUCHTIME # INVOLVED, TAKING INTO ACCOUNT THAT THE
047448,000557: # WORDS MAY NOT BE SIGNED CORRECTED (DP
047449,000558: # BASIC INSTRUCTIONS
047450,000559: # DO NOT SIGN CORRECT) AND THAT WE SUBTRAC
047451,000560: # TED BIT14 (1 OVER HALF THE POS. VALUE
047452,000561: # REPRESENTIBLE IN SINGLE WORD)
047453,000562: 01,3474 13475 NOOP # CAN:T GET HERE **********
047454,000563: 01,3475 13476 TCF +1
047455,000564: 01,3476 11152 CCS LONGTIME
047456,000565: 01,3477 13512 TCF MUCHTIME
047457,000566: 01,3500 00000 DPBIT14 OCT 00000
047458,000567: 01,3501 20000 OCT 20000
047459,000568:
047460,000569: # LONGCALL
047461,000570:
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Page 1124 |
047463,000572: 01,3502 34736 LASTTIME CA BIT14 # GET BACK THE CORRECT DELTA TFOR WAITLIST
047464,000573: 01,3503 27153 ADS LONGTIME +1
047465,000574: 01,3504 05203 TC WAITLIST
047466,000575: 01,3505 E3,1400 EBANK= LST1
047467,000576: 01,3505 03517 02063 2CADR GETCADR # THE ENTRY TO OUR LONGCADR
047468,000577:
047469,000578: 01,3507 33521 LONGRTRN CA TSKOVCDR # SET IT UP SO THAT ONLY THE FIRST EXIT IS
047470,000579: 01,3510 53435 DXCH LONGEXIT # TO THE CALLER OF LONGCALL
047471,000580: 01,3511 52006 DTCB # THE REST ARE TO TASKOVER
047472,000581:
047473,000582: 01,3512 34736 MUCHTIME CA BIT14 # WE HAVE OVER OUR ABOUT 1.25 MINUTES
047474,000583: 01,3513 05203 TC WAITLIST # SO SET UP FOR ANOTHER CYCLE THROUGH HERE
047475,000584: 01,3514 E3,1400 EBANK= LST1
047476,000585: 01,3514 03467 02063 2CADR LONGCYCL
047477,000586:
047478,000587: 01,3516 13507 TCF LONGRTRN # NOW EXIT PROPERLY
047479,000588:
047480,000589: # *** WAITLIST TASK GETCADR ***
047481,000590: 01,3517 53147 GETCADR DXCH LONGCADR # GET THE LONGCALL THAT WE WISHED TO START
047482,000591: 01,3520 52006 DTCB # AND TRANSFER CONTROL TO IT
047483,000592:
047484,000593: 01,3521 05261 TSKOVCDR GENADR TASKOVER
047485,000594: 01,3522 53435 LONGPOOH DXCH LONGEXIT
047486,000595: 01,3523 13525 TCF +2
047487,000596: 01,3524 52062 WAITPOOH DXCH WAITEXIT
047488,000597: 01,3525 05716 +2 TC POODOO1
047489,000598: 01,3526 21204 OCT 21204
End of include-file WAITLIST.agc. Parent file is MAIN.agc