GAP: ASSEMBLE REVISION 001 OF AGC PROGRAM LMY99 BY NASA 2021112-061 20'35 OCT. 28,1968Note that the date is the date of the printout, not the date of the program revision.
Source Code
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These source-code files were from the printout at the MIT Museum, with many thanks
to Deborah Douglas, the Museum's Curator of Science and Technology, for releasing
it to us. The printout was digitally photographed by Paul Fjeld. A team of
volunteers transcribed the source code manually from these images or, where
appropriate, modified already-transcribed but similar source Luminary 131 (Apollo 13)
source code to agree with the images from the printout. Note that the page images
presented online are of reduced quality, and that higher-quality 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 001 OF AGC PROGRAM LMY99 BY NASA 2021112-061 20'35 OCT. 28,1968Note that the date is the date of the printout, not the date of the program revision. |
039222,000002: ## Copyright: Public domain.
039223,000003: ## Filename: LANDING_ANALOG_DISPLAYS.agc
039224,000004: ## Purpose: Part of the source code for Luminary, build 099. It
039225,000005: ## is part of the source code for the Lunar Module's
039226,000006: ## (LM) Apollo Guidance Computer (AGC), Apollo 11.
039227,000007: ## Assembler: yaYUL
039228,000008: ## Reference: pp. 898-907
039229,000009: ## Contact: Ron Burkey <info@sandroid.org>,
039230,000010: ## Fabrizio Bernardini <fabrizio@spacecraft.it>
039231,000011: ## Website: http://www.ibiblio.org/apollo.
039232,000012: ## Mod history: 05/06/09 FB Transcription Batch 4 Assignment.
039233,000013: ## 2016-12-17 RSB Proofed text comments with octopus/ProoferComments
039234,000014: ## and corrected the errors found.
039235,000015: ##
039236,000016: ## The contents of the "Luminary099" files, in general, are transcribed
039237,000017: ## from scanned documents.
039238,000018: ##
039239,000019: ## Assemble revision 001 of AGC program Luminary099 by NASA
039240,000020: ## 2021112-061. July 14, 1969.
039241,000021: ##
039242,000022: ## Prepared by
039243,000023: ## Massachusetts Institute of Technology
039244,000024: ## 75 Cambridge Parkway
039245,000025: ## Cambridge, Massachusetts
039246,000026: ##
039247,000027: ## under NASA contract NAS 9-4065.
039248,000028: ##
039249,000029: ## Refer directly to the online document mentioned above for further
039250,000030: ## information. Please report any errors to info@sandroid.org.
039251,000031:
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Page 898 |
039253,000033: 21,2154 BANK 21
039254,000034: 21,2000 SETLOC R10
039255,000035: 21,2000 BANK
039256,000036:
039257,000037: 21,2154 E7,1536 EBANK= UNIT/R/
039258,000038: 21,2154 COUNT* $$/R10
039259,000039:
039260,000040: 21,2154 23714 LANDISP LXCH PIPCTR1 # UPDATE TBASE2 AND PIPCTR SIMULTANEOUSLY.
039261,000041: 21,2155 40025 CS TIME1
039262,000042: 21,2156 53056 DXCH TBASE2
039263,000043:
039264,000044: 21,2157 40103 CS FLAGWRD7 # IS LANDING ANALOG DISPLAYS FLAG SET?
039265,000045: 21,2160 74741 MASK SWANDBIT
039266,000046: 21,2161 10000 CCS A
039267,000047: 21,2162 13053 TCF DISPRSET # NO.
039268,000048: 21,2163 31303 CA IMODES33 # BIT 7 = 0 (DO ALTRATE), =1 (DO ALT.)
039269,000049: 21,2164 74745 MASK BIT7
039270,000050: 21,2165 10000 CCS A
039271,000051: 21,2166 12240 TCF ALTOUT
039272,000052: 21,2167 02324 ALTROUT TC DISINDAT # CHECK MODE SELECT SWITCH AND DIDFLG.
039273,000053: 21,2170 41303 CS IMODES33
039274,000054: 21,2171 74745 MASK BIT7
039275,000055: 21,2172 27303 ADS IMODES33 # ALTERNATE ALTITUDE RATE WITH ALTITUDE.
039276,000056: 21,2173 34752 CAF BIT2 # RATE COMMAND IS EXECUTED BEFORE RANGE.
039277,000057: 21,2174 00006 EXTEND
039278,000058: 21,2175 05014 WOR CHAN14 # ALTRATE (BIT2 = 1), ALTITUDE (BIT2 = 0).
039279,000059: 21,2176 31743 ARCOMP CA RUNIT # COMPUTE ALTRATE = RUNIT.VVECT M/CS *2(-6).
039280,000060: 21,2177 00006 EXTEND
039281,000061: 21,2200 71706 MP VVECT # MULTIPLY X-COMPONENTS.
039282,000062: 21,2201 56070 XCH RUPTREG1 # SAVE SINGLE PRECISION RESULT M/CS*2(-6).
039283,000063: 21,2202 31744 CA RUNIT +1 # MULTIPLY Y-COMPONENTS.
039284,000064: 21,2203 00006 EXTEND
039285,000065: 21,2204 71707 MP VVECT +1
039286,000066: 21,2205 26070 ADS RUPTREG1 # ACCUMULATE PARTIAL PRODUCTS.
039287,000067: 21,2206 31745 CA RUNIT +2 # MULTIPLY Z-COMPONENTS.
039288,000068: 21,2207 00006 EXTEND
039289,000069: 21,2210 71710 MP VVECT +2
039290,000070: 21,2211 26070 ADS RUPTREG1 # ALTITUDE RATE IN M/CS *2(-6).
039291,000071: 21,2212 32000 CA ARCONV # CONVERT ALTRATE TO BIT UNITS (.5FPS/BIT)
039292,000072: 21,2213 00006 EXTEND
039293,000073: 21,2214 70070 MP RUPTREG1
039294,000074: 21,2215 20001 DDOUBL
039295,000075: 21,2216 20001 DDOUBL
039296,000076: 21,2217 56070 XCH RUPTREG1 # ALTITUDE RATE IN BIT UNITS*2(-14).
039297,000077: 21,2220 31716 CA DALTRATE # ALTITUDE RATE COMPENSATION FACTOR.
039298,000078: 21,2221 00006 EXTEND
039299,000079: 21,2222 71715 MP DT
039300,000080: 21,2223 60070 AD RUPTREG1
039301,000081: 21,2224 55711 TS ALTRATE # ALTITUDE RATE IN BIT UNITS*2(-14).
039302,000082: 21,2225 41711 CS ALTRATE
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Page 899 |
039304,000084: 21,2226 00006 EXTEND # CHECK POLARITY OF ALTITUDE RATE.
039305,000085: 21,2227 62231 BZMF +2
039306,000086: 21,2230 12233 TCF DATAOUT # NEGATIVE - SEND POS. PULSES TO ALTM REG.
039307,000087: 21,2231 31711 CA ALTRATE # POSITIVE OR ZERO - SET SIGN BIT = 1 AND
039308,000088: 21,2232 64735 AD BIT15 # SEND TO ALTM REGISTER. *DO NOT SEND +0*
039309,000089: 21,2233 54060 DATAOUT TS ALTM # ACTIVATE THE LANDING ANALOG DISPLAYS - -
039310,000090: 21,2234 34751 CAF BIT3
039311,000091: 21,2235 00006 EXTEND
039312,000092: 21,2236 05014 WOR CHAN14 # BIT3 DRIVES THE ALT/ALTRATE METER.
039313,000093: 21,2237 15261 TCF TASKOVER # EXIT
039314,000094:
039315,000095: 21,2240 02324 ALTOUT TC DISINDAT # CHECK MODE SELECT SWITCH AND DIDFLG.
039316,000096: 21,2241 44745 CS BIT7
039317,000097: 21,2242 71303 MASK IMODES33
039318,000098: 21,2243 55303 TS IMODES33 # ALTERNATE ALTITUDE RATE WITH ALTITUDE.
039319,000099: 21,2244 44752 CS BIT2
039320,000100: 21,2245 00006 EXTEND
039321,000101: 21,2246 03014 WAND CHAN14
039322,000102: 21,2247 11741 CCS ALTBITS # = -1 IF OLD ALT. DATA TO BE EXTRAPOLATED.
039323,000103: 21,2250 12254 TCF +4
039324,000104: 21,2251 12254 TCF +3
039325,000105: 21,2252 12272 TCF OLDDATA
039326,000106: 21,2253 55741 TS ALTBITS # SET ALTBITS FROM -0 TO +0.
039327,000107: 21,2254 44753 CS ONE
039328,000108: 21,2255 53742 DXCH ALTBITS # SET ALTBITS = -1 FOR SWITCH USE NEXT PASS.
039329,000109: 21,2256 53713 DXCH ALTSAVE
039330,000110: 21,2257 34742 CA BIT10 # NEW ALTITUDE EXTRAPOLATION WITH ALTRATE.
039331,000111: 21,2260 56002 XCH Q
039332,000112: 21,2261 22007 LXCH 7 # ZL
039333,000113: 21,2262 31715 CA DT
039334,000114: 21,2263 00006 EXTEND
039335,000115: 21,2264 10002 DV Q # RESCALE DT*2(-14) TO *2(-9) TIME IN CS.
039336,000116: 21,2265 00006 EXTEND
039337,000117: 21,2266 72002 MP ARTOA2 # .0021322 *2(+8)
039338,000118: 21,2267 12273 TCF OLDDATA +1 # RATE APPLIES FOR DT CS.
039339,000119:
039340,000120: 21,2270 53713 ZDATA2 DXCH ALTSAVE
039341,000121: 21,2271 12313 TCF NEWDATA
039342,000122: 21,2272 32001 OLDDATA CA ARTOA # RATE APPLIES FOR .5 SEC. (4X/SEC. CYCLE)
039343,000123: 21,2273 00006 EXTEND
039344,000124: 21,2274 71711 MP ALTRATE # EXTRAPOLATE WITH ALTITUDE RATE.
039345,000125: 21,2275 20001 DDOUBL
039346,000126: 21,2276 61713 AD ALTSAVE +1
039347,000127: 21,2277 55713 TS ALTSAVE +1
039348,000128: 21,2300 34755 CAF ZERO
039349,000129: 21,2301 27712 ADS ALTSAVE
039350,000130: 21,2302 34733 CAF POSMAX # FORCE SIGN AGREEMENT ASSUMING A
039351,000131: 21,2303 64753 AD ONE # NON-NEGATIVE ALTSAVE.
039352,000132: 21,2304 61713 AD ALTSAVE +1 # IF ALTSAVE IS NEGATIVE, ZERO ALTSAVE
039353,000133: 21,2305 55713 TS ALTSAVE +1 # AND ALTSAVE +1 AT ZERODATA.
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Page 900 |
039355,000135: 21,2306 34755 CAF ZERO
039356,000136: 21,2307 64733 AD POSMAX
039357,000137: 21,2310 61712 AD ALTSAVE
039358,000138: 21,2311 55712 TS ALTSAVE # POSSIBLY SKIP TO NEWDATA.
039359,000139: 21,2312 13050 TCF ZERODATA
039360,000140: 21,2313 11713 NEWDATA CCS ALTSAVE +1
039361,000141: 21,2314 12320 TCF +4
039362,000142: 21,2315 12320 TCF +3
039363,000143: 21,2316 34755 CAF ZERO # SET NEGATIVE ALTSAVE +1 TO +0.
039364,000144: 21,2317 55713 TS ALTSAVE +1
039365,000145: 21,2320 11712 CCS ALTSAVE # PROVIDE A 15 BIT UNSIGNED OUTPUT.
039366,000146: 21,2321 34735 CAF BIT15 # THE HI-ORDER PART IS +1 OR +0.
039367,000147: 21,2322 61713 AD ALTSAVE +1
039368,000148: 21,2323 12233 TCF DATAOUT # DISPATCH UNSIGNED BITS TO ALTM REG.
039369,000149: 21,2324 00006 DISINDAT EXTEND
039370,000150: 21,2325 23714 QXCH LADQSAVE # SAVE RETURN TO ALTROUT +1 OR ALTOUT +1
039371,000151: 21,2326 34746 CAF BIT6
039372,000152: 21,2327 00006 EXTEND # WISHETH THE ASTRONAUT THE ANALOG
039373,000153: 21,2330 02030 RAND CHAN30 # DISPLAYS? I.E.,
039374,000154: 21,2331 10000 CCS A # IS THE MODE SELECT SWITCH IN PGNCS?
039375,000155: 21,2332 13053 TCF DISPRSET # NO. ASTRONAUT REQUESTS NO INERTIAL DATA
039376,000156: 21,2333 40075 CS FLAGWRD1 # YES. CHECK STATUS OF DIDFLAG.
039377,000157: 21,2334 74736 MASK DIDFLBIT
039378,000158: 21,2335 00006 EXTEND
039379,000159: 21,2336 12374 BZF SPEEDRUN # SET. PERFORM DATA DISPLAY SEQUENCE.
039380,000160: 21,2337 40075 CS FLAGWRD1 # RESET. PERFORM INITIALIZATION FUNCTIONS.
039381,000161: 21,2340 74736 MASK DIDFLBIT
039382,000162: 21,2341 26075 ADS FLAGWRD1 # SET DIDFLAG.
039383,000163: 21,2342 44745 CS BIT7
039384,000164: 21,2343 71303 MASK IMODES33 # TO DISPLAY ALTRATE FIRST AND ALT. SECOND
039385,000165: 21,2344 55303 TS IMODES33
039386,000166: 21,2345 40074 CS FLAGWRD0 # ARE WE IN DESCENT TRAJECTORY?
039387,000167: 21,2346 74752 MASK R10FLBIT
039388,000168: 21,2347 00006 EXTEND
039389,000169: 21,2350 15261 BZF TASKOVER # NO
039390,000170: 21,2351 34744 CAF BIT8 # YES.
039391,000171: 21,2352 00006 EXTEND
039392,000172: 21,2353 05012 WOR CHAN12 # SET DISPLAY INERTIAL DATA OUTBIT.
039393,000173: 21,2354 34755 CAF ZERO
039394,000174: 21,2355 55702 TS TRAKLATV # LATERAL VELOCITY MONITOR FLAG
039395,000175: 21,2356 55703 TS TRAKFWDV # FORWARD VELOCITY MONITOR FLAG
039396,000176: 21,2357 55676 TS LATVMETR # LATVEL MONITOR METER
039397,000177: 21,2360 55677 TS FORVMETR # FORVEL MONITOR METER
039398,000178: 21,2361 34750 CAF BIT4
039399,000179: 21,2362 05173 TC TWIDDLE
039400,000180: 21,2363 02365 ADRES INTLZE
039401,000181: 21,2364 15261 TCF TASKOVER
039402,000182: 21,2365 34752 INTLZE CAF BIT2
039403,000183: 21,2366 00006 EXTEND
039404,000184: 21,2367 05012 WOR CHAN12 # ENABLE RR ERROR COUNTER.
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Page 901 |
039406,000186: 21,2370 41303 CS IMODES33
039407,000187: 21,2371 74744 MASK BIT8
039408,000188: 21,2372 27303 ADS IMODES33 # SET INERTIAL DATA FLAG.
039409,000189: 21,2373 15261 TCF TASKOVER
039410,000190:
039411,000191: 21,2374 41235 SPEEDRUN CS PIPTIME +1 # UPDATE THE VELOCITY VECTOR
039412,000192: 21,2375 60025 AD TIME1 # COMPUTE T - TN
039413,000193: 21,2376 64736 AD HALF # CORRECT FOR POSSIBLE OVERFLOW OF TIME1.
039414,000194: 21,2377 64736 AD HALF
039415,000195: 21,2400 57715 XCH DT # SAVE FOR LATER USE
039416,000196: 21,2401 34777 CA 1SEC
039417,000197: 21,2402 54065 TS ITEMP5 # INITIALIZE FOR DIVISION LATER
039418,000198: 21,2403 00006 EXTEND
039419,000199: 21,2404 31237 DCA GDT/2 # COMPUTE THE X-COMPONENT OF VELOCITY.
039420,000200: 21,2405 20001 DDOUBL
039421,000201: 21,2406 20001 DDOUBL
039422,000202: 21,2407 00006 EXTEND
039423,000203: 21,2410 71715 MP DT
039424,000204: 21,2411 00006 EXTEND
039425,000205: 21,2412 10065 DV ITEMP5
039426,000206: 21,2413 57706 XCH VVECT # VVECT = G(T-TN) M/CS *2(-5)
039427,000207: 21,2414 00006 EXTEND
039428,000208: 21,2415 31527 DCA V # M/CS *2(-7)
039429,000209: 21,2416 20001 DDOUBL # RESCALE TO 2(-5)
039430,000210: 21,2417 20001 DDOUBL
039431,000211: 21,2420 27706 ADS VVECT # VVECT = VN + G(T-TN) M/CS *2(-5)
039432,000212: 21,2421 30037 CA PIPAX # DELV CM/SEC *2(-14)
039433,000213: 21,2422 61160 AD PIPATMPX # IN CASE PIPAX HAS BEEN ZEROED
039434,000214: 21,2423 00006 EXTEND
039435,000215: 21,2424 72004 MP KPIP1(5) # DELV M/CS *2(-5)
039436,000216: 21,2425 27706 ADS VVECT # VVECT = VN + DELV + GN(T-TN) M/CS *2(-5)
039437,000217: 21,2426 00006 EXTEND
039438,000218: 21,2427 31241 DCA GDT/2 +2 # COMPUTE THE Y-COMPONENT OF VELOCITY.
039439,000219: 21,2430 20001 DDOUBL
039440,000220: 21,2431 20001 DDOUBL
039441,000221: 21,2432 00006 EXTEND
039442,000222: 21,2433 71715 MP DT
039443,000223: 21,2434 00006 EXTEND
039444,000224: 21,2435 10065 DV ITEMP5
039445,000225: 21,2436 57707 XCH VVECT +1
039446,000226: 21,2437 00006 EXTEND
039447,000227: 21,2440 31531 DCA V +2
039448,000228: 21,2441 20001 DDOUBL
039449,000229: 21,2442 20001 DDOUBL
039450,000230: 21,2443 27707 ADS VVECT +1
039451,000231: 21,2444 30040 CA PIPAY
039452,000232: 21,2445 61161 AD PIPATMPY
039453,000233: 21,2446 00006 EXTEND
039454,000234: 21,2447 72004 MP KPIP1(5)
039455,000235: 21,2450 27707 ADS VVECT +1
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Page 902 |
039457,000237: 21,2451 00006 EXTEND
039458,000238: 21,2452 31243 DCA GDT/2 +4 # COMPUTE THE Z-COMPONENT OF VELOCITY.
039459,000239: 21,2453 20001 DDOUBL
039460,000240: 21,2454 20001 DDOUBL
039461,000241: 21,2455 00006 EXTEND
039462,000242: 21,2456 71715 MP DT
039463,000243: 21,2457 00006 EXTEND
039464,000244: 21,2460 10065 DV ITEMP5
039465,000245: 21,2461 57710 XCH VVECT +2
039466,000246: 21,2462 00006 EXTEND
039467,000247: 21,2463 31533 DCA V +4
039468,000248: 21,2464 20001 DDOUBL
039469,000249: 21,2465 20001 DDOUBL
039470,000250: 21,2466 27710 ADS VVECT +2
039471,000251: 21,2467 30041 CA PIPAZ
039472,000252: 21,2470 61162 AD PIPATMPZ
039473,000253: 21,2471 00006 EXTEND
039474,000254: 21,2472 72004 MP KPIP1(5)
039475,000255: 21,2473 27710 ADS VVECT +2
039476,000256:
039477,000257: 21,2474 34751 CAF BIT3 # PAUSE 40 MS TO LET OTHER RUPTS IN.
039478,000258: 21,2475 05224 TC VARDELAY
039479,000259:
039480,000260: 21,2476 40074 CS FLAGWRD0 # ARE WE IN DESCENT TRAJECTORY?
039481,000261: 21,2477 74752 MASK R10FLBIT
039482,000262: 21,2500 10000 CCS A
039483,000263: 21,2501 12503 TCF +2 # YES.
039484,000264: 21,2502 01714 TC LADQSAVE # NO.
039485,000265:
039486,000266: 21,2503 31733 CA DELVS # HI X OF VELOCITY CORRECTION TERM.
039487,000267: 21,2504 61706 AD VVECT # HI X OF UPDATED VELOCITY VECTOR.
039488,000268: 21,2505 54061 TS ITEMP1 # = VX - DVX M/CS *2(-5).
039489,000269: 21,2506 31735 CA DELVS +2 # Y
039490,000270: 21,2507 61707 AD VVECT +1 # Y
039491,000271: 21,2510 54062 TS ITEMP2 # = VY - DVY M/CS *2(-5).
039492,000272: 21,2511 31737 CA DELVS +4 # Z
039493,000273: 21,2512 61710 AD VVECT +2 # Z
039494,000274: 21,2513 54063 TS ITEMP3 # = VZ - DVZ M/CS *2(-5).
039495,000275: 21,2514 30061 CA ITEMP1 # COMPUTE VHY, VELOCITY DIRECTED ALONG THE
039496,000276: 21,2515 00006 EXTEND # Y-COORDINATE.
039497,000277: 21,2516 71717 MP UHYP # HI X OF CROSS-RANGE HALF-UNIT VECTOR.
039498,000278: 21,2517 56070 XCH RUPTREG1
039499,000279: 21,2520 30062 CA ITEMP2
039500,000280: 21,2521 00006 EXTEND
039501,000281: 21,2522 71721 MP UHYP +2 # Y
039502,000282: 21,2523 26070 ADS RUPTREG1 # ACCUMULATE PARTIAL PRODUCTS.
039503,000283: 21,2524 30063 CA ITEMP3
039504,000284: 21,2525 00006 EXTEND
039505,000285: 21,2526 71723 MP UHYP +4 # Z
039506,000286: 21,2527 26070 ADS RUPTREG1
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Page 903 |
039508,000288: 21,2530 30070 CA RUPTREG1
039509,000289: 21,2531 60000 DOUBLE
039510,000290: 21,2532 57704 XCH VHY # VHY=VMP.UHYP M/CS*2(-5).
039511,000291: 21,2533 30061 CA ITEMP1 # NOW COMPUTE VHZ, VELOCITY DIRECTED ALONG
039512,000292: 21,2534 00006 EXTEND # THE Z-COORDINATE.
039513,000293: 21,2535 71725 MP UHZP # HI X OF DOWN-RANGE HALF-UNIT VECTOR.
039514,000294: 21,2536 56070 XCH RUPTREG1
039515,000295: 21,2537 30062 CA ITEMP2
039516,000296: 21,2540 00006 EXTEND
039517,000297: 21,2541 71727 MP UHZP +2 # Y
039518,000298: 21,2542 26070 ADS RUPTREG1 # ACCUMULATE PARTIAL PRODUCTS.
039519,000299: 21,2543 30063 CA ITEMP3
039520,000300: 21,2544 00006 EXTEND
039521,000301: 21,2545 71731 MP UHZP +4 # Z
039522,000302: 21,2546 26070 ADS RUPTREG1
039523,000303: 21,2547 30070 CA RUPTREG1
039524,000304: 21,2550 60000 DOUBLE
039525,000305: 21,2551 57705 XCH VHZ # VHZ = VMP.UHZP M/CS*2(-5).
039526,000306: 21,2552 35015 GET22/32 CAF EBANK6 # GET SIN(AOG),COS(AOG) FROM GPMATRIX.
039527,000307: 21,2553 54003 TS EBANK
039528,000308: 21,2554 E6,1417 EBANK= M22
039529,000309: 21,2554 31417 CA M22
039530,000310: 21,2555 54063 TS ITEMP3
039531,000311: 21,2556 31420 CA M32
039532,000312: 21,2557 54064 TS ITEMP4
039533,000313: 21,2560 35016 CAF EBANK7
039534,000314: 21,2561 54003 TS EBANK
039535,000315: 21,2562 E7,1536 EBANK= UNIT/R/
039536,000316: 21,2562 30064 LATFWDV CA ITEMP4 # COMPUTE LATERAL AND FORWARD VELOCITIES.
039537,000317: 21,2563 00006 EXTEND
039538,000318: 21,2564 71704 MP VHY
039539,000319: 21,2565 56070 XCH RUPTREG1
039540,000320: 21,2566 30063 CA ITEMP3
039541,000321: 21,2567 00006 EXTEND
039542,000322: 21,2570 71705 MP VHZ
039543,000323: 21,2571 26070 ADS RUPTREG1 # = VHY(COS)AOG+VHZ(SIN)AOG M/CS *2(-5)
039544,000324: 21,2572 32003 CA VELCONV # CONVERT LATERAL VELOCITY TO BIT UNITS.
039545,000325: 21,2573 00006 EXTEND
039546,000326: 21,2574 70070 MP RUPTREG1
039547,000327: 21,2575 20001 DDOUBL
039548,000328: 21,2576 57700 XCH LATVEL # LATERAL VELOCITY IN BIT UNITS *2(-14).
039549,000329: 21,2577 30064 CA ITEMP4 # COMPUTE FORWARD VELOCITY.
039550,000330: 21,2600 00006 EXTEND
039551,000331: 21,2601 71705 MP VHZ
039552,000332: 21,2602 56070 XCH RUPTREG1
039553,000333: 21,2603 30063 CA ITEMP3
039554,000334: 21,2604 00006 EXTEND
039555,000335: 21,2605 71704 MP VHY
039556,000336: 21,2606 40000 CS A
039557,000337: 21,2607 26070 ADS RUPTREG1 # =VHZ(COS)AOG-VHY(SIN)AOG M/CS *2(-5).
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Page 904 |
039559,000339: 21,2610 32003 CA VELCONV # CONVERT FORWARD VELOCITY TO BIT UNITS.
039560,000340: 21,2611 00006 EXTEND
039561,000341: 21,2612 70070 MP RUPTREG1
039562,000342: 21,2613 20001 DDOUBL
039563,000343: 21,2614 57701 XCH FORVEL # FORWARD VELOCITY IN BIT UNITS *2(-14).
039564,000344:
039565,000345: 21,2615 42005 CS MAXVBITS # ACC.=-199.9989 FT./SEC.
039566,000346: 21,2616 54066 TS ITEMP6 # -547 BIT UNITS (OCTAL) AT 0.5571 FPS/BIT
039567,000347:
039568,000348: 21,2617 34753 CAF ONE # LOOP TWICE.
039569,000349: 21,2620 54065 VMONITOR TS ITEMP5 # FORWARD AND LATERAL VELOCITY LANDING
039570,000350: 21,2621 50065 INDEX ITEMP5 # ANALOG DISPLAYS MONITOR.
039571,000351: 21,2622 11700 CCS LATVEL
039572,000352: 21,2623 12627 TCF +4
039573,000353: 21,2624 12730 TCF LVLIMITS
039574,000354: 21,2625 12635 TCF +8D
039575,000355: 21,2626 12730 TCF LVLIMITS
039576,000356: 21,2627 50065 INDEX ITEMP5
039577,000357: 21,2630 41700 CS LATVEL
039578,000358: 21,2631 62005 AD MAXVBITS # +199.9989 FT./SEC.
039579,000359: 21,2632 00006 EXTEND
039580,000360: 21,2633 62643 BZMF CHKLASTY
039581,000361: 21,2634 12730 TCF LVLIMITS
039582,000362: 21,2635 50065 INDEX ITEMP5
039583,000363: 21,2636 31700 CA LATVEL
039584,000364: 21,2637 62005 AD MAXVBITS
039585,000365: 21,2640 00006 EXTEND
039586,000366: 21,2641 62643 BZMF +2
039587,000367: 21,2642 12730 TCF LVLIMITS
039588,000368: 21,2643 50065 CHKLASTY INDEX ITEMP5
039589,000369: 21,2644 11676 CCS LATVMETR
039590,000370: 21,2645 12651 TCF +4
039591,000371: 21,2646 12662 TCF LASTOK
039592,000372: 21,2647 12656 TCF +7
039593,000373: 21,2650 12662 TCF LASTOK
039594,000374: 21,2651 50065 INDEX ITEMP5
039595,000375: 21,2652 31700 CA LATVEL
039596,000376: 21,2653 00006 EXTEND
039597,000377: 21,2654 62701 BZMF LASTPOSY +5
039598,000378: 21,2655 12662 TCF +5
039599,000379: 21,2656 50065 INDEX ITEMP5
039600,000380: 21,2657 41700 CS LATVEL
039601,000381: 21,2660 00006 EXTEND
039602,000382: 21,2661 62716 BZMF LASTNEGY +4
039603,000383: 21,2662 50065 LASTOK INDEX ITEMP5
039604,000384: 21,2663 11702 CCS TRAKLATV
039605,000385: 21,2664 12674 TCF LASTPOSY
039606,000386: 21,2665 12667 TCF +2
039607,000387: 21,2666 12712 TCF LASTNEGY
039608,000388: 21,2667 50065 INDEX ITEMP5
|
|
Page 905 |
039610,000390: 21,2670 31700 CA LATVEL
039611,000391: 21,2671 00006 EXTEND
039612,000392: 21,2672 62720 BZMF NEGVMAXY
039613,000393: 21,2673 12703 TCF POSVMAXY
039614,000394: 21,2674 50065 LASTPOSY INDEX ITEMP5
039615,000395: 21,2675 31700 CA LATVEL
039616,000396: 21,2676 00006 EXTEND
039617,000397: 21,2677 62701 BZMF +2
039618,000398: 21,2700 12703 TCF POSVMAXY
039619,000399: 21,2701 42005 CS MAXVBITS
039620,000400: 21,2702 13024 TCF ZEROLSTY
039621,000401: 21,2703 50065 POSVMAXY INDEX ITEMP5
039622,000402: 21,2704 41676 CS LATVMETR
039623,000403: 21,2705 62005 AD MAXVBITS
039624,000404: 21,2706 50065 INDEX ITEMP5
039625,000405: 21,2707 56072 XCH RUPTREG3
039626,000406: 21,2710 34753 CAF ONE
039627,000407: 21,2711 13027 TCF ZEROLSTY +3
039628,000408: 21,2712 50065 LASTNEGY INDEX ITEMP5
039629,000409: 21,2713 31700 CA LATVEL
039630,000410: 21,2714 00006 EXTEND
039631,000411: 21,2715 62720 BZMF NEGVMAXY
039632,000412: 21,2716 32005 CA MAXVBITS
039633,000413: 21,2717 13024 TCF ZEROLSTY
039634,000414: 21,2720 50065 NEGVMAXY INDEX ITEMP5
039635,000415: 21,2721 31676 CA LATVMETR
039636,000416: 21,2722 62005 AD MAXVBITS
039637,000417: 21,2723 40000 COM
039638,000418: 21,2724 50065 INDEX ITEMP5
039639,000419: 21,2725 56072 XCH RUPTREG3
039640,000420: 21,2726 44753 CS ONE
039641,000421: 21,2727 13027 TCF ZEROLSTY +3
039642,000422: 21,2730 50065 LVLIMITS INDEX ITEMP5
039643,000423: 21,2731 11702 CCS TRAKLATV
039644,000424: 21,2732 12761 TCF LATVPOS
039645,000425: 21,2733 12735 TCF +2
039646,000426: 21,2734 12766 TCF LATVNEG
039647,000427: 21,2735 50065 INDEX ITEMP5
039648,000428: 21,2736 41676 CS LATVMETR
039649,000429: 21,2737 00006 EXTEND
039650,000430: 21,2740 62742 BZMF +2
039651,000431: 21,2741 12775 TCF NEGLMLV
039652,000432: 21,2742 50065 INDEX ITEMP5
039653,000433:
039654,000434: 21,2743 41700 CS LATVEL
039655,000435: 21,2744 00006 EXTEND
039656,000436: 21,2745 63020 BZMF LVMINLM
039657,000437: 21,2746 60066 AD ITEMP6
039658,000438: 21,2747 50065 INDEX ITEMP5
039659,000439: 21,2750 61676 AD LATVMETR
039660,000440: 21,2751 00006 EXTEND
|
|
Page 906 |
039662,000442: 21,2752 63020 BZMF LVMINLM
039663,000443: 21,2753 50065 INDEX ITEMP5
039664,000444: 21,2754 61700 AD LATVEL
039665,000445: 21,2755 00006 EXTEND
039666,000446: 21,2756 50065 INDEX ITEMP5
039667,000447: 21,2757 61676 SU LATVMETR
039668,000448: 21,2760 13024 TCF ZEROLSTY
039669,000449: 21,2761 50065 LATVPOS INDEX ITEMP5
039670,000450: 21,2762 41700 CS LATVEL
039671,000451: 21,2763 00006 EXTEND
039672,000452: 21,2764 63020 BZMF LVMINLM
039673,000453: 21,2765 12772 TCF +5
039674,000454: 21,2766 50065 LATVNEG INDEX ITEMP5
039675,000455: 21,2767 31700 CA LATVEL
039676,000456: 21,2770 00006 EXTEND
039677,000457: 21,2771 63020 BZMF LVMINLM
039678,000458: 21,2772 50065 INDEX ITEMP5
039679,000459: 21,2773 41676 CS LATVMETR
039680,000460: 21,2774 13024 TCF ZEROLSTY
039681,000461: 21,2775 50065 NEGLMLV INDEX ITEMP5
039682,000462: 21,2776 31700 CA LATVEL
039683,000463: 21,2777 00006 EXTEND
039684,000464: 21,3000 63020 BZMF LVMINLM
039685,000465: 21,3001 32005 CA MAXVBITS
039686,000466: 21,3002 50065 INDEX ITEMP5
039687,000467: 21,3003 61676 AD LATVMETR
039688,000468: 21,3004 40000 COM
039689,000469: 21,3005 50065 INDEX ITEMP5
039690,000470: 21,3006 61700 AD LATVEL
039691,000471: 21,3007 00006 EXTEND
039692,000472: 21,3010 63020 BZMF LVMINLM
039693,000473: 21,3011 00006 EXTEND
039694,000474: 21,3012 50065 INDEX ITEMP5
039695,000475: 21,3013 61700 SU LATVEL
039696,000476: 21,3014 50065 INDEX ITEMP5
039697,000477: 21,3015 61676 AD LATVMETR
039698,000478: 21,3016 40000 COM
039699,000479: 21,3017 13024 TCF ZEROLSTY
039700,000480: 21,3020 50065 LVMINLM INDEX ITEMP5
039701,000481: 21,3021 41676 CS LATVMETR
039702,000482: 21,3022 50065 INDEX ITEMP5
039703,000483: 21,3023 61700 AD LATVEL
039704,000484: 21,3024 50065 ZEROLSTY INDEX ITEMP5
039705,000485: 21,3025 56072 XCH RUPTREG3
039706,000486: 21,3026 34755 CAF ZERO
039707,000487: 21,3027 50065 INDEX ITEMP5
039708,000488: 21,3030 55702 TS TRAKLATV
039709,000489: 21,3031 50065 INDEX ITEMP5
039710,000490: 21,3032 30072 CA RUPTREG3
039711,000491: 21,3033 64754 AD NEG0 # AVOIDS +0 DINC HARDWARE MALFUNCTION
|
|
Page 907 |
039713,000493: 21,3034 50065 INDEX ITEMP5
039714,000494: 21,3035 54053 TS CDUTCMD
039715,000495: 21,3036 50065 INDEX ITEMP5
039716,000496: 21,3037 30072 CA RUPTREG3
039717,000497: 21,3040 50065 INDEX ITEMP5
039718,000498: 21,3041 27676 ADS LATVMETR
039719,000499: 21,3042 10065 CCS ITEMP5 # FIRST MONITOR FORWARD THEN LATERAL VEL.
039720,000500: 21,3043 12620 TCF VMONITOR
039721,000501:
039722,000502: 21,3044 35020 CAF BITSET # DRIVE THE X-POINTER DISPLAY.
039723,000503: 21,3045 00006 EXTEND
039724,000504: 21,3046 05014 WOR CHAN14
039725,000505: 21,3047 01714 TC LADQSAVE # GO TO ALTROUT +1 OR TO ALTOUT +1
039726,000506: 21,3050 34755 ZERODATA CAF ZERO # ZERO ALTSAVE AND ALTSAVE +1 - - -
039727,000507: 21,3051 54001 TS L # NO NEGATIVE ALTITUDES ALLOWED.
039728,000508: 21,3052 12270 TCF ZDATA2
039729,000509:
039730,000510: # ************************************************************************
039731,000511:
039732,000512: 21,3053 40074 DISPRSET CS FLAGWRD0 # ARE WE IN DESCENT TRAJECTORY?
039733,000513: 21,3054 74752 MASK R10FLBIT
039734,000514: 21,3055 00006 EXTEND
039735,000515: 21,3056 13067 BZF ABORTON # NO.
039736,000516: 21,3057 34744 CAF BIT8 # YES.
039737,000517: 21,3060 71303 MASK IMODES33 # CHECK IF INERTIAL DATA JUST DISPLAYED.
039738,000518: 21,3061 10000 CCS A
039739,000519: 21,3062 34752 CAF BIT2 # YES. DISABLE RR ERROR COUNTER
039740,000520: 21,3063 64744 AD BIT8 # NO. REMOVE DISPLAY INERTIAL DATA
039741,000521: 21,3064 40000 COM
039742,000522: 21,3065 00006 EXTEND
039743,000523: 21,3066 03012 WAND CHAN12
039744,000524: 21,3067 43076 ABORTON CS BITS8/7 # RESET INERTIAL DATA, INTERLEAVE FLAGS.
039745,000525: 21,3070 71303 MASK IMODES33
039746,000526: 21,3071 55303 TS IMODES33
039747,000527: 21,3072 44736 CS DIDFLBIT
039748,000528: 21,3073 70075 MASK FLAGWRD1
039749,000529: 21,3074 54075 TS FLAGWRD1 # RESET DIDFLAG.
039750,000530: 21,3075 15261 TCF TASKOVER
039751,000531:
039752,000532: # ************************************************************************
039753,000533:
039754,000534: 21,3076 00300 BITS8/7 OCT 00300 # INERTIAL DATA AND INTERLEAVE FLAGS.
039755,000535: 21,3077 5020 BITSET = PRIO6
039756,000536:
039757,000537: # ************************************************************************
039758,000538:
039759,000539:
End of include-file LANDING_ANALOG_DISPLAYS.agc. Parent file is MAIN.agc