Source Code
|
These source-code files were transcribed from scans made from Don Eyles's personal
copy of BURST120 (SUNBURST 120). They were scanned at archive.org's Boston
facility, and the scanning was sponsored by Mike Stewart. The code was transcribed
from these scans by a team of volunteers who are referenced in the program
comments. Comments from the original source code are in ALL-CAPS, whereas
comments added later in transcription are in Mixed-Case. In some cases, where
similar code blocks exist in previously-transcribed AGC programs (primarily
Luminary 99, from Apollo 11) those code blocks were used as a starting point and
then corrected to agree with the BURST120 scans. The full scans are available
at the Virtual AGC
project's collection at archive.org, while more-convenient reduced-size (but reduced-quality)
images are available at
the main Virtual AGC website. Report any errors noted by creating an
issue report at the Virtual AGC
project's GitHub repository. Notations on the program listing read, in part:YUL SYSTEM FOR AGC: REVISION 0 OF PROGRAM BURST120 BY NASA 2021106-031 DEC 7, 1967 THIS LISTING IS A COPY OF A VERSION OF THE PROGRAM INTENDED FOR USE IN THE ON-BOARD PRIMARY GUIDANCE COMPUTER IN THE UNMANNED FLIGHT OF APOLLO LUNAR MODULE 1 --- THE AS206 MISSION.Note that the date is the date of the printout, not the date of the program revision. |
036322,000002: ## Copyright: Public domain.
036323,000003: ## Filename: THROTTLE_CONTROL.agc
036324,000004: ## Purpose: A module for revision 0 of BURST120 (Sunburst). It
036325,000005: ## is part of the source code for the Lunar Module's
036326,000006: ## (LM) Apollo Guidance Computer (AGC) for Apollo 5.
036327,000007: ## Assembler: yaYUL
036328,000008: ## Contact: Ron Burkey <info@sandroid.org>.
036329,000009: ## Website: www.ibiblio.org/apollo/index.html
036330,000010: ## Mod history: 2016-09-30 RSB Created draft version.
036331,000011: ## 2016-10-30 MAS Transcribed.
036332,000012: ## 2016-11-02 RSB Typo.
036333,000013: ## 2016-12-06 RSB Comment-proofing via octopus/ProoferComments;
036334,000014: ## changes were made.
036335,000015:
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Page 849 |
036337,000017: # THROTTLE CONTROL CAN BE USED IN EITHER OF TWO MODES: IN "PERCENTAGE MODE" (WHEN A CERTAIN FRACTION OF
036338,000018: # MAXIMUM THRUST IS DESIRED) AND IN "ACCELERATION MODE" (WHEN THE THRUST DESIRED IS THAT CORRESPONDING TO A
036339,000019: # SPECIFIED ACCELERATION).
036340,000020:
036341,000021: # PERCENTAGE MODE ACCELERATION MODE
036342,000022:
036343,000023: # THE FRACTION OF MAXIMUM THRUST (NOMINALLY DESIRED ACCELERATION, IN DOUBLE PRECISION,
036344,000024: # 10500 POUNDS) DESIRED, IN SINGLE PRECISION, IS IN UNITS OF 2(-5) M/CS/CS, IS PLACED IN /ACF/.
036345,000025: # PLACED IN PCNTF. ENTRY IS VIA A DTCB AN THE ENTRY IS VIA A DTCB ON THE 2CADR OF THROTCON.
036346,000026: # 2CADR OF PCNTFMAX. THE ROUTINE BEGINNING AT THE ROUTINE BEGINNING AT THROTCON SETS UP A JOB -
036347,000027: # PCNTFMAX SETS UP A JOB - PCNTJOB - AND RETURNS ACCLJOB - AND RETURNS TO THE USER (AT THE
036348,000028: # TO THE USER (AT THE INSTRUCTION IMMEDIATELY INSTRUCTION FOLLOWING THE DTCB).
036349,000029: # FOLLOWING THE DTCB).
036350,000030: # ACCLJOB, AFTER A RESTART PROTECT,
036351,000031: # PCNTJOB, AFTER A RESTART PROTECT, COMPUTES DESIRED ACCELERATION, FC = /ACF/ MASS,
036352,000032: # TURNS OFF THE TRIM GIMBAL, SETS UP A WAITLIST SCALED AT ABOUT 2.7 POUNDS PER BIT.
036353,000033: # TASK (DESCRIBED LOCALLY), COMPUTES THRUST DESIRED,
036354,000034: # FC = PCNTF FMAX, SCALED AT ABOUT 2.7 POUNDS PER BIT, (NOTE THAT IN THE ACCELERATION MODE THE TRIM
036355,000035: # AND TCF'S AROUND THE COMMENCEMENT OF ACCLJOB TO GIMBAL IS NOT TURNED OFF; IT IS ASSUMED TO BE OFF
036356,000036: # FOLDCALC. BY THE TIME THROTTLE CHANGES ARE COMMANDED.
036357,000037:
036358,000038: # FOLDCALC BEGINS BY COMPUTING PRESENT THRUST, FOLD = MASS /AF/, SCALED AS IS FC. NEXT, SINCE /AF/ IS
036359,000039: # MERELY AN "AVERAGE" OF THE THROTTLE LEVELS OF THE PRECEEDING PIPA INTERVAL, FOLD IS WEIGHTED BY FWEIGHT, A
036360,000040: # FUNCTION OF THE PRECEEDING THROTTLE COMMAND (DESCRIBED LOCALLY). TO PRECLUDE A SPURIOUS WEIGHTING THAT WOULD
036361,000041: # OTHERWISE OCCUR, FWEIGHT IS ZEROED 1.95 SECONDS AFTER EVERY PERCENTAGE MODE THROTTLING.
036362,000042:
036363,000043: # NEXT, TO COMPENSATE FOR THE DIFFERENTIAL BETWEEN BITS FOR MAXIMUM THRUST AND BITS FOR FULL THROTTLE, THE
036364,000044: # NUMBER FOLD - FODD IS COMPUTED AND SET INTO PIFPSET WHENEVER FCOLD INDICATES THE THROTTLE IS AT MAXIMUM.
036365,000045: # SINCE PIFPSET IS USED, RATHER THAN PIF, PIF STILL REFLECTS ACCURATELY THE ACTUAL THRUST CHANGE AND FWEIGHT IS
036366,000046: # COMPUTED PROPERLY.
036367,000047:
036368,000048: # NEXT COMES IS-IT-ON. HERE THE ENGINE-OFF BIT (14 OF CHANNEL 11) IS QUERIED; IF THE ENGINE IS OFF
036369,000049: # FCOLD, THE SINGLE PRECISION HISTORY REGISTER, IS SET TO 10% FMAX AND PIFPSET, A PRESETTING ADDED TO PIF AT
036370,000050: # THE LAST MOMENT, IS SET TO -10% FMAX TO COMPENSATE FOR THE ASSUMED SETTING OF THE MANUAL THROTTLE.
036371,000051:
036372,000052: # THE SERIES OF DECISIONS BEGINNING AT WHERETO CAUSES THE THROTTLE TO REACT TO USERS' DESIRES IN THE
036373,000053: # MANNER DESCRIBED BY FIGURE 5.3-5 OF THE FLIGHT 206 GSOP. WHERETO PROCEEDS (OR BRANCHES) TO FLATOUT (IF THE
036374,000054: # THROTTLE LEVEL ASKED FOR IS IN THE FORBIDDEN REGION) OR TO DOPIF. FLATOUT RESETS FC TO 94% FMAX, SETS FEXTRA
036375,000055: # (A BOOST GIVEN TO THE THROTTLE TO KEEP IT JAMMED AGAINST ITS STOPS) INTO PIFPSET, AND PROCEEDS TO DOPIF.
036376,000056:
036377,000057: # DOPIF, AFTER A "TYPE C" RESTART PROTECT (NECESSITATED BY THE FACT THAT FCOLD AND PIF, USED EARLIER, ARE
036378,000058: # ABOUT TO BE MODIFIED), SETS FCOLD = FC, COMPUTES PIF (PULSE INCREMENT FOR ACCELERATION) = FC - FOLD, AND, AS
036379,000059: # IT PROCEEDS TO DOIT, HAS THIS NUMBER PLUS PIFPSET IN A & L.
036380,000060:
036381,000061: # DOIT DOES IT. IT TS'S INTO THRUST, THE CHANNEL (55) LEADING TO DECA, THE THROTTLE-AGC INTERFACE
036382,000062: # CIRCUIT, AND SETS BIT 4 IN CHANNEL 11, THE SIGNAL FOR THRUST TO BE COUNTED DOWN (AT 3200 PPS). FINALLY,
036383,000063: # FWEIGHT = F(PIF) IS COMPUTED FOR USE NEXT PASS.
036384,000064:
036385,000065: # AFTER ANOTHER RESTART PROTECT A TCF ENDOFJOB ENDS THROTTLE CONTROL.
036386,000066:
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Page 850 |
036388,000068: 30,3445 BANK 30
036389,000069: 30,3445 E5,1565 EBANK= ETHROT
036390,000070:
036391,000071:
036392,000072:
036393,000073: # ***************
036394,000074: # * SUBROUTINES *
036395,000075: # ***************
036396,000076:
036397,000077: # THIS SUBROUTINE MULTIPLIES ACCELERATION
036398,000078: # (ARRIVING IN A AND L) BY MASS AND LEAVES
036399,000079: # FORCE (THRUST) IN A & L, SCALED AT ABOUT
036400,000080: # 2.7 POUNDS PER BIT.
036401,000081:
036402,000082: 30,3445 00006 MASSMULT EXTEND
036403,000083: 30,3446 22120 QXCH BUF # PRESERVING RETURN ADDRESS
036404,000084: 30,3447 52145 DXCH MPAC
036405,000085: 30,3450 07155 TC DMP # LEAVES ODDLY SCALED FORCE IN MPAC
036406,000086: 30,3451 01320 ADRES MASS
036407,000087: 30,3452 07155 TC DMP # LEAVES PROPERLY SCALED FORCE IN MPAC
036408,000088: 30,3453 03533 ADRES SCALEFAC
036409,000089: 30,3454 52146 DXCH MPAC +1 # LOADING FORCE INTO A AND L
036410,000090: 30,3455 00120 TC BUF # IN WHICH Q WAS STORED
036411,000091:
036412,000092:
036413,000093:
036414,000094: # THIS TASK WILL BE EXECUTED 1.95 SECONDS
036415,000095: # AFTER PERCENTAGE MODE THROTTLING.
036416,000096:
036417,000097: 30,3456 47767 PCNTOVER CS ZERO
036418,000098: 30,3457 55576 TS FWEIGHT # SCHEME WILL WORK PROPERLY NEXT PASS
036419,000099: 30,3460 55577 TS FWEIGHT +1
036420,000100: 30,3461 22007 ZL # -0 STILL IN A
036421,000101: 30,3462 53100 DXCH -PHASE1
036422,000102: 30,3463 15727 TCF TASKOVER
036423,000103:
036424,000104:
036425,000105:
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The character used for separation below, and throughout the rest of this section, was actually a small box, similar to the unicode white square (U+25A1). All occurrences have been replaced with the ASCII =. |
036428,000108: # ========================================================================
036429,000109: 30,3464 00303 THROTDT DEC +195 B-14
036430,000110: 30,3465 00310 PGUID DEC +200 B-14
036431,000111: # ========================================================================
036432,000112:
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Page 851 |
036434,000114: # ***********
036435,000115: # * ENTRIES *
036436,000116: # ***********
036437,000117:
036438,000118: # THIS ENTRY SETS UP A JOB WHICH WILL
036439,000119: # DELIVER A SPECIFIED FRACTION OF MAXIMUM
036440,000120: # THRUST. THIS FRACTION ARRIVES (SP) IN
036441,000121: # REGISTER PCNTF.
036442,000122:
036443,000123: 30,3466 53575 PCNTFMAX DXCH RTNHOLD # RETAINING 2CADR FOR RETURN TO USER
036444,000124: 30,3467 35647 CAF PRIO25
036445,000125: 30,3470 00004 INHINT
036446,000126: 30,3471 05505 TC NOVAC
036447,000127: 30,3472 E5,1565 EBANK= ETHROT
036448,000128: 30,3472 03507 60065 2CADR PCNTJOB
036449,000129:
036450,000130: 30,3474 00003 RELINT
036451,000131: 30,3475 13505 TCF AWAY
036452,000132:
036453,000133: # NORMAL ENTRY FROM GUIDANCE EQUATIONS:
036454,000134: # THE JOB SET UP HERE DELIVERS A THRUST
036455,000135: # CORRESPONDING TO THE DESIRED MAGNITUDE
036456,000136: # OF THRUST-ACCELERATION. THIS VALUE
036457,000137: # ARRIVES (DP) IN /ACF/, SCALED IN UNITS
036458,000138: # OF 2(-5) M/CS/CS.
036459,000139:
036460,000140: 30,3476 53575 THROTCON DXCH RTNHOLD # RETAINING 2CADR FOR RETURN TO USER
036461,000141: 30,3477 35210 CAF PRIO30
036462,000142: 30,3500 00004 INHINT
036463,000143: 30,3501 05505 TC NOVAC
036464,000144: 30,3502 E5,1565 EBANK= ETHROT
036465,000145: 30,3502 03540 60065 2CADR ACCLJOB
036466,000146:
036467,000147: 30,3504 00003 RELINT
036468,000148:
036469,000149:
036470,000150: # THIS RETURN IS COMMON TO BOTH ENTRIES.
036471,000151:
036472,000152: 30,3505 53575 AWAY DXCH RTNHOLD
036473,000153: 30,3506 52006 DTCB
036474,000154:
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Page 852 |
036476,000156: # ***************
036477,000157: # * COMPUTATION *
036478,000158: # ***************
036479,000159:
036480,000160: 30,3507 00004 PCNTJOB INHINT # SINCE THROTTLING IS ABOUT TO COMMENCE.
036481,000161:
036482,000162: 30,3510 33464 CAF THROTDT # SET UP A TASK TO ZERO FWEIGHT IN 2 SECS
036483,000163: 30,3511 05663 TC WAITLIST
036484,000164: 30,3512 E5,1565 EBANK= ETHROT
036485,000165: 30,3512 03456 60065 2CADR PCNTOVER
036486,000166:
036487,000167: 30,3514 04141 TC 2PHSCHNG
036488,000168: 30,3515 40031 OCT 40031 # 1.3 SPOT FOR PCNTOVER
036489,000169: 30,3516 05024 OCT 05024
036490,000170: 30,3517 25000 OCT 25000
036491,000171:
036492,000172: 30,3520 00006 EXTEND
036493,000173: 30,3521 43701 DCS -FMAX
036494,000174: 30,3522 52145 DXCH MPAC
036495,000175: 30,3523 31323 CA PCNTF
036496,000176: 30,3524 07357 TC SHORTMP
036497,000177: 30,3525 52145 DXCH MPAC # LOADING
036498,000178: 30,3526 53571 DXCH FC # STORING
036499,000179:
036500,000180: 30,3527 37767 CA ZERO # ZEROING FWEIGHT SINCE IT'S UNKNOWN
036501,000181: 30,3530 55576 TS FWEIGHT
036502,000182: 30,3531 55577 TS FWEIGHT +1
036503,000183: 30,3532 13547 TCF FOLDCALC
036504,000184:
036505,000185:
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In the following line, and the corresponding line a few lines below it, it's unclear what the characters printed are supposed to be. In the hardcopy, they appear as small rectangular boxes. |
036509,000189: # ########################################################################
036510,000190: 30,3533 00063 36233 SCALEFAC 2DEC +51.946987 B-14 # QUASI-NEWTONS TO PULSE UNITS
036511,000191:
036512,000192: 30,3535 31000 2.PG.FRT DEC 12800 B-14 # TWICE PGUID TIME PULSE RATE
036513,000193: 30,3536 74034 -LOCRIT DEC -2019 B-14 # THE LOWER MID-SCALE CRITERION
036514,000194: 30,3537 30,3536 FEXTRA = -LOCRIT
036515,000195: 30,3537 00666 +FLOW DEC +438 B-14 # MINIMUM ATTAINABLE THRUST
036516,000196: # ########################################################################
036517,000197:
036518,000198: 30,3540 04161 ACCLJOB TC PHASCHNG
036519,000199: 30,3541 05024 OCT 05024
036520,000200: 30,3542 30000 OCT 30000
036521,000201:
036522,000202: 30,3543 00006 EXTEND
036523,000203: 30,3544 31323 DCA /ACF/
036524,000204: 30,3545 03445 TC MASSMULT
036525,000205: 30,3546 53571 DXCH FC # FC = MASS /ACF/, SCALED
036526,000206:
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Page 853 |
036528,000208: 30,3547 00006 FOLDCALC EXTEND
036529,000209: 30,3550 31325 DCA /AF/
036530,000210: 30,3551 03445 TC MASSMULT
036531,000211: 30,3552 53566 DXCH FOLD # FOLD = MASS /AF/, SCALED
036532,000212:
036533,000213: 30,3553 00006 EXTEND
036534,000214: 30,3554 31577 DCA FWEIGHT # WEIGHTING FOLD BY FWEIGHT
036535,000215: 30,3555 21566 DAS FOLD # AS COMPUTED LAST PASS
036536,000216:
036537,000217: # IF THE THROTTLE IS AT MAXIMUM, THE
036538,000218: # QUANTITY -(FODD-FOLD) IS COMPUTED AND
036539,000219: # PUT INTO PIFPSET TO COMPENSATE FOR THE
036540,000220: # DIFFERENCE BETWEEN THE NUMBER OF BITS
036541,000221: # (I.E. PULSES) CORRESPONDING TO 100%
036542,000222: # THROTTLE (FODD) AND THE NUMBER CORRES-
036543,000223: # PONDING TO ACTUAL THRUST (FOLD). THIS
036544,000224: # COMPENSATION IS NEEDED IF THE THROTTLE
036545,000225: # RETURNS TO THE THROTTLEABLE REGION THIS
036546,000226: # PASS. IF IT DOES NOT, PIFPSET IS RESET
036547,000227: # IN FLATOUT.
036548,000228:
036549,000229: 30,3556 47767 FCOMPSET CS ZERO
036550,000230: 30,3557 55574 TS PIFPSET
036551,000231: 30,3560 43704 CS +HICRIT
036552,000232: 30,3561 61567 AD FCOLD
036553,000233: 30,3562 00006 EXTEND
036554,000234: 30,3563 63567 BZMF IS-IT-ON # BRANCH IF FCOLD < HICRIT, OTHERWISE
036555,000235: 30,3564 43677 CS +FODD # COMPUTE THE COMPENSATION NUMBER
036556,000236: 30,3565 61565 AD FOLD
036557,000237: 30,3566 55574 TS PIFPSET
036558,000238:
036559,000239:
036560,000240:
036561,000241: # THIS ROUTINE CHECKS THE ENGINE-OFF BIT.
036562,000242: # IF THE ENGINE IS OFF, FCOLD IS SET TO
036563,000243: # 10 PERCENT FMAX, AND, SINCE /AF/ DOES
036564,000244: # NOT REFLECT THE SETTING OF THE MANUAL
036565,000245: # THROTTLE, THAT SETTING (AROUND 12%) IS
036566,000246: # PLACED NEGATIVELY IN PIFPSET.
036567,000247:
036568,000248: 30,3567 40075 IS-IT-ON CS FLAGWRD1
036569,000249: 30,3570 77757 MASK ENGINBIT
036570,000250: 30,3571 00006 EXTEND
036571,000251: 30,3572 13577 BZF WHERETO # BRANCH HERE IF ENGINE IS ON
036572,000252: 30,3573 33537 CA +FLOW
036573,000253: 30,3574 55567 TS FCOLD # SETTING FCOLD
036574,000254: 30,3575 43537 CS +FLOW
036575,000255: 30,3576 55574 TS PIFPSET
036576,000256:
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Page 854 |
036578,000258: # ************
036579,000259: # * DECISION *
036580,000260: # ************
036581,000261:
036582,000262: # THIS LOGIC DETERMINES THROTTLING IN THE
036583,000263: # REGION 10% - 94%. THE MANUAL THROTTLE,
036584,000264: # SET TO MINIMUM BY MISSION PHASE PROGRMS,
036585,000265: # PROVIDES THE LOWER BOUND; A STOP IN THE
036586,000266: # ENGINE ITSELF PROVIDES THE UPPER.
036587,000267:
036588,000268:
036589,000269:
036590,000270: 30,3577 31570 WHERETO CA FC
036591,000271: 30,3600 63536 AD -LOCRIT
036592,000272: 30,3601 00006 EXTEND
036593,000273: 30,3602 63620 BZMF DOPIF # BRANCH IF FC < LOCRIT
036594,000274: 30,3603 41570 CS FC
036595,000275: 30,3604 63704 AD +HICRIT
036596,000276: 30,3605 00006 EXTEND
036597,000277: 30,3606 63613 BZMF FLATOUT # BRANCH IF FC > OR = HICRIT
036598,000278: 30,3607 43704 CS +HICRIT
036599,000279: 30,3610 61567 AD FCOLD
036600,000280: 30,3611 00006 EXTEND
036601,000281: 30,3612 63620 BZMF DOPIF # BRANCH IF FCOLD < OR = HICRIT,
036602,000282: # OTHERWISE PROCEED TO FLATOUT
036603,000283:
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Page 855 |
036605,000285: # *************
036606,000286: # * EXECUTION *
036607,000287: # *************
036608,000288:
036609,000289: 30,3613 00006 FLATOUT EXTEND
036610,000290: 30,3614 33703 DCA +FHIGH
036611,000291: 30,3615 53571 DXCH FC
036612,000292: 30,3616 43536 CS FEXTRA
036613,000293: 30,3617 55574 TS PIFPSET
036614,000294:
036615,000295: 30,3620 04161 DOPIF TC PHASCHNG
036616,000296: 30,3621 04024 OCT 04024 # ?
036617,000297:
036618,000298: 30,3622 00006 EXTEND
036619,000299: 30,3623 31571 DCA FC
036620,000300: 30,3624 55567 TS FCOLD # HISTORY
036621,000301: 30,3625 53573 DXCH PIF
036622,000302: 30,3626 00006 EXTEND
036623,000303: 30,3627 41566 DCS FOLD
036624,000304: 30,3630 21573 DAS PIF # PIF = FC - FOLD
036625,000305: 30,3631 03713 TC DAPLOGIC
036626,000306:
036627,000307: 30,3632 31572 DAPLRETN CA PIF
036628,000308: 30,3633 61574 AD PIFPSET # ADD IN PIFPSET, NOT CHANGING PIF
036629,000309:
036630,000310: 30,3634 54055 DOIT TS THRUST
036631,000311: 30,3635 04161 TC PHASCHNG
036632,000312: 30,3636 04024 OCT 04024
036633,000313:
036634,000314: 30,3637 37760 CAF BIT4
036635,000315: 30,3640 00006 EXTEND
036636,000316: 30,3641 05014 WOR 14 # AND THE ENGINE DOES THE REST...
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What we show as a percent-sign below ("WOULD THAT IT WERE%") was really a 1/2 symbol (½) in the original hardcopy. |
036639,000319: # SINCE /AF/ IS NOT AN INSTANTANEOUS
036640,000320: # ACCELERATION (WOULD THAT IT WERE%) BUT
036641,000321: # RATHER AN "AVERAGE" OF THE ACCELERATION
036642,000322: # LEVELS OF THE LAST PIPA INTERVAL, AND
036643,000323: # SINCE FOLD IS COMPUTED DIRECTLY FROM
036644,000324: # /AF/, FOLD IN ORDER TO CORRESPOND TO THE
036645,000325: # ACTUAL THRUST LEVEL AT THE END OF THE
036646,000326: # INTERVAL MUST BE WEIGHTED BY
036647,000327:
036648,000328: # PIF PPROCES PIF /PIF/
036649,000329: # FWEIGHT = ----------- + ------------- ,
036650,000330: # PGUID 2 PGUID FRATE
036651,000331:
036652,000332: # WHERE PPROCES IS THE TIME BETWEEN PIPA
036653,000333: # READING AND THE START OF THROTTLING,
036654,000334: # PGUID IS THE GUIDANCE PERIOD (2 SECONDS)
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Page 856 |
036656,000336: # AND FRATE IS THE THROTTLING RATE (SOME
036657,000337: # 3200 UNITS PER SECOND). HERE FWEIGHT
036658,000338: # IS COMPUTED FOR USE NEXT PASS.
036659,000339:
036660,000340: 30,3642 00006 EXTEND
036661,000341: 30,3643 30025 DCA TIME2
036662,000342: 30,3644 52145 DXCH MPAC
036663,000343: 30,3645 00006 EXTEND
036664,000344: 30,3646 41307 DCS PIPTIME
036665,000345: 30,3647 20145 DAS MPAC
036666,000346: 30,3650 33465 CA PGUID
036667,000347: 30,3651 56145 XCH MPAC +1
036668,000348: 30,3652 77743 MASK POSMAX # IN CASE THAT LOUSY SIGN BIT IS SET
036669,000349: 30,3653 00006 EXTEND
036670,000350: 30,3654 10145 DV MPAC +1 # WHICH CONTAINS PGUID
036671,000351: 30,3655 00006 EXTEND
036672,000352: 30,3656 71572 MP PIF
036673,000353: 30,3657 53577 DXCH FWEIGHT # FWEIGHT = (PPROCES/PGUID)PIF, SO FAR...
036674,000354:
036675,000355: 30,3660 33535 CA 2.PG.FRT
036676,000356: 30,3661 56144 XCH MPAC # TO BE USED AS A DIVISOR LATER
036677,000357: 30,3662 11572 CCS PIF
036678,000358: 30,3663 67763 AD ONE
036679,000359: 30,3664 13666 TCF +2
036680,000360: 30,3665 67763 AD ONE
036681,000361: 30,3666 00006 EXTEND # AT THIS POINT HAVE /PIF/ IN A
036682,000362: 30,3667 71572 MP PIF
036683,000363: 30,3670 00006 EXTEND
036684,000364: 30,3671 10144 DV MPAC # WHICH CONTAINS 2.PG.FRT
036685,000365: 30,3672 22007 LXCH 7
036686,000366: 30,3673 21577 DAS FWEIGHT
036687,000367:
036688,000368: 30,3674 04161 TC PHASCHNG
036689,000369: 30,3675 00004 OCT 00004
036690,000370: 30,3676 15567 TCF ENDOFJOB
036691,000371:
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Page 857 |
036693,000373: # *************
036694,000374: # * CONSTANTS *
036695,000375: # *************
036696,000376:
036697,000377: # CONSTANTS FOR DECISION
036698,000378:
036699,000379: 30,3677 07432 +FODD DEC +3866 B-14 # THIS MUCH SATURATES THROTTLE
036700,000380:
036701,000381: 30,3700 70325 77777 -FMAX 2DEC -3882 B-14 # NOMINAL MAX THRUST IN BIT UNITS
036702,000382:
036703,000383: 30,3702 07100 00000 +FHIGH 2DEC +3648 B-14 # MAX ATTAINABLE THRUST, UNERODED
036704,000384:
036705,000385: 30,3704 04314 +HICRIT DEC +2252 B-14 # THE HIGHER MID-SCALE CRITERION
036706,000386:
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In the following line, and the corresponding line a few lines below it, it's unclear what the characters printed are supposed to be. In the hardcopy, they appear as small rectangular boxes. |
036710,000390: # ########################################################################
036711,000391: # SINCE BETWEEN REVISION 113 AND 114 IT WAS NECESSARY TO PRESERVE THE
036712,000392: # LOCATIONS IN MEMORY OF LABELS ADDRESSED FROM OTHER BANKS (SINCE THE ROPE
036713,000393: # IS ALREADY UNDER CONSTRUCTION) CERTAIN CONSTANTS WERE REMOVED FROM THIS
036714,000394: # SECTION FOR USE AS FILLER ELSEWHERE. THESE ARE -LOCRIT, +FLOW,
036715,000395: # SCALEFAC, FEXTRA, THROTDT, PGUID, AND 2.PG.FRT.
036716,000396: # ########################################################################
036717,000397:
036718,000398:
036719,000399:
036720,000400: # IF THE TRIM GIMBAL IS TURNED OFF BY
036721,000401: # THE THROTTLE, THIS TASK WILL REENABLE IT
036722,000402: # ABOUT 2 SECONDS LATER.
036723,000403:
036724,000404: 30,3705 06076 THROTOVR TC FLAG2DWN
036725,000405: 30,3706 00010 OCT 00010
036726,000406: 30,3707 47767 CS ZERO
036727,000407: 30,3710 22007 ZL
036728,000408: 30,3711 53100 DXCH -PHASE1
036729,000409: 30,3712 15727 TCF TASKOVER
036730,000410:
036731,000411:
036732,000412:
036733,000413: 30,3713 31572 DAPLOGIC CA PIF
036734,000414: 30,3714 00006 EXTEND
036735,000415: 30,3715 63717 BZMF +2
036736,000416: 30,3716 40000 COM
036737,000417:
036738,000418: 30,3717 63770 AD HITHRESH
036739,000419: 30,3720 00006 EXTEND
036740,000420: 30,3721 63750 BZMF JETSET # BRANCH IF /PIF/ > OR = HITHRESH
036741,000421:
036742,000422: 30,3722 31565 CA FOLD
036743,000423: 30,3723 60000 DOUBLE
036744,000424: 30,3724 54120 TS BUF
036745,000425:
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Page 858 |
036747,000427: 30,3725 31570 CA FC
036748,000428: 30,3726 00006 EXTEND
036749,000429: 30,3727 10120 DV BUF # WHERE TWICE FOLD WAS STORED
036750,000430: 30,3730 54120 TS BUF
036751,000431: 30,3731 35632 CA EBANK6
036752,000432: 30,3732 54003 TS EBANK
036753,000433: 30,3733 E6,1563 EBANK= D2CDUYFL
036754,000434: 30,3733 30120 CA BUF
036755,000435: 30,3734 00006 EXTEND
036756,000436: 30,3735 71563 MP D2CDUYFL
036757,000437: 30,3736 60000 DOUBLE
036758,000438: 30,3737 57563 XCH D2CDUYFL
036759,000439: 30,3740 30120 CA BUF
036760,000440: 30,3741 00006 EXTEND
036761,000441: 30,3742 71565 MP D2CDUZFL
036762,000442: 30,3743 60000 DOUBLE
036763,000443: 30,3744 57565 XCH D2CDUZFL
036764,000444:
036765,000445: 30,3745 35661 CA EBANK5
036766,000446: 30,3746 54003 TS EBANK
036767,000447: 30,3747 E5,1565 EBANK= ETHROT
036768,000448: 30,3747 13632 TCF DAPLRETN
036769,000449:
036770,000450:
036771,000451:
036772,000452: 30,3750 00004 JETSET INHINT
036773,000453: 30,3751 40077 CS DAPBOOLS # INHIBIT USE OF TRIM GIMBAL
036774,000454: 30,3752 77762 MASK USEQRJTS
036775,000455: 30,3753 26077 ADS DAPBOOLS
036776,000456:
036777,000457: 30,3754 33464 CA THROTDT # SET UP TASK TO REMOVE THE INHIBITION
036778,000458: 30,3755 05663 TC WAITLIST # CREATED BELOW
036779,000459: 30,3756 E5,1565 EBANK= ETHROT
036780,000460: 30,3756 03705 60065 2CADR THROTOVR
036781,000461:
036782,000462: 30,3760 06060 TC FLAG2UP # INHIBIT THE GIMBLMON FROM REACTIVATING
036783,000463: 30,3761 00010 OCT 00010 # THE GIMBAL
036784,000464:
036785,000465: 30,3762 04161 TC PHASCHNG
036786,000466: 30,3763 47011 OCT 47011
036787,000467: 30,3764 00303 DEC 195 B-14
036788,000468: 30,3765 E5,1565 EBANK= ETHROT
036789,000469: 30,3765 03705 60065 2CADR THROTOVR
036790,000470:
036791,000471: 30,3767 13632 TCF DAPLRETN
036792,000472:
036793,000473:
036794,000474:
036795,000475: 30,3770 00302 HITHRESH DEC +194 B-14 # ABOUT 5 % OF NOMINAL MAXIMUM THRUST
End of include-file THROTTLE_CONTROL.agc. Parent file is MAIN.agc