Source Code
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These source-code files are part of a reconstructed copy of Luminary 97, the
second release of the Apollo 11 Lunar Module (LM) Apollo Guidance Computer
(AGC) software. It was created to fix two incorrect ephemeris constants in
Luminary 96, as described by anomaly report LNY-59.
The reconstruction began with source code of Luminary 99 revision 1 previously
transcribed from a digitized copy of that program. The code was then updated
by undoing changes described in original Luminary memos 83 and 85, using asterisks
indicating changed lines in the listing as a guide. The reconstruction was
verified by matching memory-bank checksums to those listed in drawing 2021152D.
Note that page numbers in the reconstructed code match those on the Luminary 099
revision 001 printout, although the added code would likely have changed page
numbers for a real Luminary 97 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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038569,000002: ## Copyright: Public domain.
038570,000003: ## Filename: LANDING_ANALOG_DISPLAYS.agc
038571,000004: ## Purpose: A section of Luminary revision 97.
038572,000005: ## It is part of the reconstructed source code for the
038573,000006: ## second release of the flight software for the Lunar
038574,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 11.
038575,000008: ## It was created to fix two incorrect ephemeris constants in
038576,000009: ## Luminary 96, as described by anomaly report LNY-59.
038577,000010: ## The code has been recreated from a copy of Luminary 99
038578,000011: ## revision 001, using asterisks indicating changed lines in
038579,000012: ## the listing and Luminary Memos #83 and #85, which list
038580,000013: ## changes between Luminary 97 and 98, and 98 and 99. The
038581,000014: ## code has been adapted such that the resulting bugger words
038582,000015: ## exactly match those specified for Luminary 97 in NASA drawing
038583,000016: ## 2021152D, which gives relatively high confidence that the
038584,000017: ## reconstruction is correct.
038585,000018: ## Reference: pp. 898-907
038586,000019: ## Assembler: yaYUL
038587,000020: ## Contact: Ron Burkey <info@sandroid.org>.
038588,000021: ## Website: www.ibiblio.org/apollo/index.html
038589,000022: ## Mod history: 2019-07-28 MAS Created from Luminary 99.
038590,000023:
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Page 898
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038592,000025: 21,2154 BANK 21
038593,000026: 21,2000 SETLOC R10
038594,000027: 21,2000 BANK
038595,000028:
038596,000029: 21,2154 E7,1536 EBANK= UNIT/R/
038597,000030: 21,2154 COUNT* $$/R10
038598,000031:
038599,000032: 21,2154 23714 LANDISP LXCH PIPCTR1 # UPDATE TBASE2 AND PIPCTR SIMULTANEOUSLY.
038600,000033: 21,2155 40025 CS TIME1
038601,000034: 21,2156 53056 DXCH TBASE2
038602,000035:
038603,000036: 21,2157 40103 CS FLAGWRD7 # IS LANDING ANALOG DISPLAYS FLAG SET?
038604,000037: 21,2160 74741 MASK SWANDBIT
038605,000038: 21,2161 10000 CCS A
038606,000039: 21,2162 13053 TCF DISPRSET # NO.
038607,000040: 21,2163 31303 CA IMODES33 # BIT 7 = 0 (DO ALTRATE), =1 (DO ALT.)
038608,000041: 21,2164 74745 MASK BIT7
038609,000042: 21,2165 10000 CCS A
038610,000043: 21,2166 12240 TCF ALTOUT
038611,000044: 21,2167 02324 ALTROUT TC DISINDAT # CHECK MODE SELECT SWITCH AND DIDFLG.
038612,000045: 21,2170 41303 CS IMODES33
038613,000046: 21,2171 74745 MASK BIT7
038614,000047: 21,2172 27303 ADS IMODES33 # ALTERNATE ALTITUDE RATE WITH ALTITUDE.
038615,000048: 21,2173 34752 CAF BIT2 # RATE COMMAND IS EXECUTED BEFORE RANGE.
038616,000049: 21,2174 00006 EXTEND
038617,000050: 21,2175 05014 WOR CHAN14 # ALTRATE (BIT2 = 1), ALTITUDE (BIT2 = 0).
038618,000051: 21,2176 31743 ARCOMP CA RUNIT # COMPUTE ALTRATE = RUNIT.VVECT M/CS *2(-6).
038619,000052: 21,2177 00006 EXTEND
038620,000053: 21,2200 71706 MP VVECT # MULTIPLY X-COMPONENTS.
038621,000054: 21,2201 56070 XCH RUPTREG1 # SAVE SINGLE PRECISION RESULT M/CS*2(-6).
038622,000055: 21,2202 31744 CA RUNIT +1 # MULTIPLY Y-COMPONENTS.
038623,000056: 21,2203 00006 EXTEND
038624,000057: 21,2204 71707 MP VVECT +1
038625,000058: 21,2205 26070 ADS RUPTREG1 # ACCUMULATE PARTIAL PRODUCTS.
038626,000059: 21,2206 31745 CA RUNIT +2 # MULTIPLY Z-COMPONENTS.
038627,000060: 21,2207 00006 EXTEND
038628,000061: 21,2210 71710 MP VVECT +2
038629,000062: 21,2211 26070 ADS RUPTREG1 # ALTITUDE RATE IN M/CS *2(-6).
038630,000063: 21,2212 32000 CA ARCONV # CONVERT ALTRATE TO BIT UNITS (.5FPS/BIT)
038631,000064: 21,2213 00006 EXTEND
038632,000065: 21,2214 70070 MP RUPTREG1
038633,000066: 21,2215 20001 DDOUBL
038634,000067: 21,2216 20001 DDOUBL
038635,000068: 21,2217 56070 XCH RUPTREG1 # ALTITUDE RATE IN BIT UNITS*2(-14).
038636,000069: 21,2220 31716 CA DALTRATE # ALTITUDE RATE COMPENSATION FACTOR.
038637,000070: 21,2221 00006 EXTEND
038638,000071: 21,2222 71715 MP DT
038639,000072: 21,2223 60070 AD RUPTREG1
038640,000073: 21,2224 55711 TS ALTRATE # ALTITUDE RATE IN BIT UNITS*2(-14).
038641,000074: 21,2225 41711 CS ALTRATE
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Page 899
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038643,000076: 21,2226 00006 EXTEND # CHECK POLARITY OF ALTITUDE RATE.
038644,000077: 21,2227 62231 BZMF +2
038645,000078: 21,2230 12233 TCF DATAOUT # NEGATIVE - SEND POS. PULSES TO ALTM REG.
038646,000079: 21,2231 31711 CA ALTRATE # POSITIVE OR ZERO - SET SIGN BIT = 1 AND
038647,000080: 21,2232 64735 AD BIT15 # SEND TO ALTM REGISTER. *DO NOT SEND +0*
038648,000081: 21,2233 54060 DATAOUT TS ALTM # ACTIVATE THE LANDING ANALOG DISPLAYS - -
038649,000082: 21,2234 34751 CAF BIT3
038650,000083: 21,2235 00006 EXTEND
038651,000084: 21,2236 05014 WOR CHAN14 # BIT3 DRIVES THE ALT/ALTRATE METER.
038652,000085: 21,2237 15261 TCF TASKOVER # EXIT
038653,000086:
038654,000087: 21,2240 02324 ALTOUT TC DISINDAT # CHECK MODE SELECT SWITCH AND DIDFLG.
038655,000088: 21,2241 44745 CS BIT7
038656,000089: 21,2242 71303 MASK IMODES33
038657,000090: 21,2243 55303 TS IMODES33 # ALTERNATE ALTITUDE RATE WITH ALTITUDE.
038658,000091: 21,2244 44752 CS BIT2
038659,000092: 21,2245 00006 EXTEND
038660,000093: 21,2246 03014 WAND CHAN14
038661,000094: 21,2247 11741 CCS ALTBITS # = -1 IF OLD ALT. DATA TO BE EXTRAPOLATED.
038662,000095: 21,2250 12254 TCF +4
038663,000096: 21,2251 12254 TCF +3
038664,000097: 21,2252 12272 TCF OLDDATA
038665,000098: 21,2253 55741 TS ALTBITS # SET ALTBITS FROM -0 TO +0.
038666,000099: 21,2254 44753 CS ONE
038667,000100: 21,2255 53742 DXCH ALTBITS # SET ALTBITS = -1 FOR SWITCH USE NEXT PASS.
038668,000101: 21,2256 53713 DXCH ALTSAVE
038669,000102: 21,2257 34742 CA BIT10 # NEW ALTITUDE EXTRAPOLATION WITH ALTRATE.
038670,000103: 21,2260 56002 XCH Q
038671,000104: 21,2261 22007 LXCH 7 # ZL
038672,000105: 21,2262 31715 CA DT
038673,000106: 21,2263 00006 EXTEND
038674,000107: 21,2264 10002 DV Q # RESCALE DT*2(-14) TO *2(-9) TIME IN CS.
038675,000108: 21,2265 00006 EXTEND
038676,000109: 21,2266 72002 MP ARTOA2 # .0021322 *2(+8)
038677,000110: 21,2267 12273 TCF OLDDATA +1 # RATE APPLIES FOR DT CS.
038678,000111:
038679,000112: 21,2270 53713 ZDATA2 DXCH ALTSAVE
038680,000113: 21,2271 12313 TCF NEWDATA
038681,000114: 21,2272 32001 OLDDATA CA ARTOA # RATE APPLIES FOR .5 SEC. (4X/SEC. CYCLE)
038682,000115: 21,2273 00006 EXTEND
038683,000116: 21,2274 71711 MP ALTRATE # EXTRAPOLATE WITH ALTITUDE RATE.
038684,000117: 21,2275 20001 DDOUBL
038685,000118: 21,2276 61713 AD ALTSAVE +1
038686,000119: 21,2277 55713 TS ALTSAVE +1
038687,000120: 21,2300 34755 CAF ZERO
038688,000121: 21,2301 27712 ADS ALTSAVE
038689,000122: 21,2302 34733 CAF POSMAX # FORCE SIGN AGREEMENT ASSUMING A
038690,000123: 21,2303 64753 AD ONE # NON-NEGATIVE ALTSAVE.
038691,000124: 21,2304 61713 AD ALTSAVE +1 # IF ALTSAVE IS NEGATIVE, ZERO ALTSAVE
038692,000125: 21,2305 55713 TS ALTSAVE +1 # AND ALTSAVE +1 AT ZERODATA.
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Page 900
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038694,000127: 21,2306 34755 CAF ZERO
038695,000128: 21,2307 64733 AD POSMAX
038696,000129: 21,2310 61712 AD ALTSAVE
038697,000130: 21,2311 55712 TS ALTSAVE # POSSIBLY SKIP TO NEWDATA.
038698,000131: 21,2312 13050 TCF ZERODATA
038699,000132: 21,2313 11713 NEWDATA CCS ALTSAVE +1
038700,000133: 21,2314 12320 TCF +4
038701,000134: 21,2315 12320 TCF +3
038702,000135: 21,2316 34755 CAF ZERO # SET NEGATIVE ALTSAVE +1 TO +0.
038703,000136: 21,2317 55713 TS ALTSAVE +1
038704,000137: 21,2320 11712 CCS ALTSAVE # PROVIDE A 15 BIT UNSIGNED OUTPUT.
038705,000138: 21,2321 34735 CAF BIT15 # THE HI-ORDER PART IS +1 OR +0.
038706,000139: 21,2322 61713 AD ALTSAVE +1
038707,000140: 21,2323 12233 TCF DATAOUT # DISPATCH UNSIGNED BITS TO ALTM REG.
038708,000141: 21,2324 00006 DISINDAT EXTEND
038709,000142: 21,2325 23714 QXCH LADQSAVE # SAVE RETURN TO ALTROUT +1 OR ALTOUT +1
038710,000143: 21,2326 34746 CAF BIT6
038711,000144: 21,2327 00006 EXTEND # WISHETH THE ASTRONAUT THE ANALOG
038712,000145: 21,2330 02030 RAND CHAN30 # DISPLAYS? I.E.,
038713,000146: 21,2331 10000 CCS A # IS THE MODE SELECT SWITCH IN PGNCS?
038714,000147: 21,2332 13053 TCF DISPRSET # NO. ASTRONAUT REQUESTS NO INERTIAL DATA
038715,000148: 21,2333 40075 CS FLAGWRD1 # YES. CHECK STATUS OF DIDFLAG.
038716,000149: 21,2334 74736 MASK DIDFLBIT
038717,000150: 21,2335 00006 EXTEND
038718,000151: 21,2336 12374 BZF SPEEDRUN # SET. PERFORM DATA DISPLAY SEQUENCE.
038719,000152: 21,2337 40075 CS FLAGWRD1 # RESET. PERFORM INITIALIZATION FUNCTIONS.
038720,000153: 21,2340 74736 MASK DIDFLBIT
038721,000154: 21,2341 26075 ADS FLAGWRD1 # SET DIDFLAG.
038722,000155: 21,2342 44745 CS BIT7
038723,000156: 21,2343 71303 MASK IMODES33 # TO DISPLAY ALTRATE FIRST AND ALT. SECOND
038724,000157: 21,2344 55303 TS IMODES33
038725,000158: 21,2345 40074 CS FLAGWRD0 # ARE WE IN DESCENT TRAJECTORY?
038726,000159: 21,2346 74752 MASK R10FLBIT
038727,000160: 21,2347 00006 EXTEND
038728,000161: 21,2350 15261 BZF TASKOVER # NO
038729,000162: 21,2351 34744 CAF BIT8 # YES.
038730,000163: 21,2352 00006 EXTEND
038731,000164: 21,2353 05012 WOR CHAN12 # SET DISPLAY INERTIAL DATA OUTBIT.
038732,000165: 21,2354 34755 CAF ZERO
038733,000166: 21,2355 55702 TS TRAKLATV # LATERAL VELOCITY MONITOR FLAG
038734,000167: 21,2356 55703 TS TRAKFWDV # FORWARD VELOCITY MONITOR FLAG
038735,000168: 21,2357 55676 TS LATVMETR # LATVEL MONITOR METER
038736,000169: 21,2360 55677 TS FORVMETR # FORVEL MONITOR METER
038737,000170: 21,2361 34750 CAF BIT4
038738,000171: 21,2362 05173 TC TWIDDLE
038739,000172: 21,2363 02365 ADRES INTLZE
038740,000173: 21,2364 15261 TCF TASKOVER
038741,000174: 21,2365 34752 INTLZE CAF BIT2
038742,000175: 21,2366 00006 EXTEND
038743,000176: 21,2367 05012 WOR CHAN12 # ENABLE RR ERROR COUNTER.
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Page 901
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038745,000178: 21,2370 41303 CS IMODES33
038746,000179: 21,2371 74744 MASK BIT8
038747,000180: 21,2372 27303 ADS IMODES33 # SET INERTIAL DATA FLAG.
038748,000181: 21,2373 15261 TCF TASKOVER
038749,000182:
038750,000183: 21,2374 41235 SPEEDRUN CS PIPTIME +1 # UPDATE THE VELOCITY VECTOR
038751,000184: 21,2375 60025 AD TIME1 # COMPUTE T - TN
038752,000185: 21,2376 64736 AD HALF # CORRECT FOR POSSIBLE OVERFLOW OF TIME1.
038753,000186: 21,2377 64736 AD HALF
038754,000187: 21,2400 57715 XCH DT # SAVE FOR LATER USE
038755,000188: 21,2401 34777 CA 1SEC
038756,000189: 21,2402 54065 TS ITEMP5 # INITIALIZE FOR DIVISION LATER
038757,000190: 21,2403 00006 EXTEND
038758,000191: 21,2404 31237 DCA GDT/2 # COMPUTE THE X-COMPONENT OF VELOCITY.
038759,000192: 21,2405 20001 DDOUBL
038760,000193: 21,2406 20001 DDOUBL
038761,000194: 21,2407 00006 EXTEND
038762,000195: 21,2410 71715 MP DT
038763,000196: 21,2411 00006 EXTEND
038764,000197: 21,2412 10065 DV ITEMP5
038765,000198: 21,2413 57706 XCH VVECT # VVECT = G(T-TN) M/CS *2(-5)
038766,000199: 21,2414 00006 EXTEND
038767,000200: 21,2415 31527 DCA V # M/CS *2(-7)
038768,000201: 21,2416 20001 DDOUBL # RESCALE TO 2(-5)
038769,000202: 21,2417 20001 DDOUBL
038770,000203: 21,2420 27706 ADS VVECT # VVECT = VN + G(T-TN) M/CS *2(-5)
038771,000204: 21,2421 30037 CA PIPAX # DELV CM/SEC *2(-14)
038772,000205: 21,2422 61160 AD PIPATMPX # IN CASE PIPAX HAS BEEN ZEROED
038773,000206: 21,2423 00006 EXTEND
038774,000207: 21,2424 72004 MP KPIP1(5) # DELV M/CS *2(-5)
038775,000208: 21,2425 27706 ADS VVECT # VVECT = VN + DELV + GN(T-TN) M/CS *2(-5)
038776,000209: 21,2426 00006 EXTEND
038777,000210: 21,2427 31241 DCA GDT/2 +2 # COMPUTE THE Y-COMPONENT OF VELOCITY.
038778,000211: 21,2430 20001 DDOUBL
038779,000212: 21,2431 20001 DDOUBL
038780,000213: 21,2432 00006 EXTEND
038781,000214: 21,2433 71715 MP DT
038782,000215: 21,2434 00006 EXTEND
038783,000216: 21,2435 10065 DV ITEMP5
038784,000217: 21,2436 57707 XCH VVECT +1
038785,000218: 21,2437 00006 EXTEND
038786,000219: 21,2440 31531 DCA V +2
038787,000220: 21,2441 20001 DDOUBL
038788,000221: 21,2442 20001 DDOUBL
038789,000222: 21,2443 27707 ADS VVECT +1
038790,000223: 21,2444 30040 CA PIPAY
038791,000224: 21,2445 61161 AD PIPATMPY
038792,000225: 21,2446 00006 EXTEND
038793,000226: 21,2447 72004 MP KPIP1(5)
038794,000227: 21,2450 27707 ADS VVECT +1
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Page 902
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038796,000229: 21,2451 00006 EXTEND
038797,000230: 21,2452 31243 DCA GDT/2 +4 # COMPUTE THE Z-COMPONENT OF VELOCITY.
038798,000231: 21,2453 20001 DDOUBL
038799,000232: 21,2454 20001 DDOUBL
038800,000233: 21,2455 00006 EXTEND
038801,000234: 21,2456 71715 MP DT
038802,000235: 21,2457 00006 EXTEND
038803,000236: 21,2460 10065 DV ITEMP5
038804,000237: 21,2461 57710 XCH VVECT +2
038805,000238: 21,2462 00006 EXTEND
038806,000239: 21,2463 31533 DCA V +4
038807,000240: 21,2464 20001 DDOUBL
038808,000241: 21,2465 20001 DDOUBL
038809,000242: 21,2466 27710 ADS VVECT +2
038810,000243: 21,2467 30041 CA PIPAZ
038811,000244: 21,2470 61162 AD PIPATMPZ
038812,000245: 21,2471 00006 EXTEND
038813,000246: 21,2472 72004 MP KPIP1(5)
038814,000247: 21,2473 27710 ADS VVECT +2
038815,000248:
038816,000249: 21,2474 34751 CAF BIT3 # PAUSE 40 MS TO LET OTHER RUPTS IN.
038817,000250: 21,2475 05224 TC VARDELAY
038818,000251:
038819,000252: 21,2476 40074 CS FLAGWRD0 # ARE WE IN DESCENT TRAJECTORY?
038820,000253: 21,2477 74752 MASK R10FLBIT
038821,000254: 21,2500 10000 CCS A
038822,000255: 21,2501 12503 TCF +2 # YES.
038823,000256: 21,2502 01714 TC LADQSAVE # NO.
038824,000257:
038825,000258: 21,2503 31733 CA DELVS # HI X OF VELOCITY CORRECTION TERM.
038826,000259: 21,2504 61706 AD VVECT # HI X OF UPDATED VELOCITY VECTOR.
038827,000260: 21,2505 54061 TS ITEMP1 # = VX - DVX M/CS *2(-5).
038828,000261: 21,2506 31735 CA DELVS +2 # Y
038829,000262: 21,2507 61707 AD VVECT +1 # Y
038830,000263: 21,2510 54062 TS ITEMP2 # = VY - DVY M/CS *2(-5).
038831,000264: 21,2511 31737 CA DELVS +4 # Z
038832,000265: 21,2512 61710 AD VVECT +2 # Z
038833,000266: 21,2513 54063 TS ITEMP3 # = VZ - DVZ M/CS *2(-5).
038834,000267: 21,2514 30061 CA ITEMP1 # COMPUTE VHY, VELOCITY DIRECTED ALONG THE
038835,000268: 21,2515 00006 EXTEND # Y-COORDINATE.
038836,000269: 21,2516 71717 MP UHYP # HI X OF CROSS-RANGE HALF-UNIT VECTOR.
038837,000270: 21,2517 56070 XCH RUPTREG1
038838,000271: 21,2520 30062 CA ITEMP2
038839,000272: 21,2521 00006 EXTEND
038840,000273: 21,2522 71721 MP UHYP +2 # Y
038841,000274: 21,2523 26070 ADS RUPTREG1 # ACCUMULATE PARTIAL PRODUCTS.
038842,000275: 21,2524 30063 CA ITEMP3
038843,000276: 21,2525 00006 EXTEND
038844,000277: 21,2526 71723 MP UHYP +4 # Z
038845,000278: 21,2527 26070 ADS RUPTREG1
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Page 903
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038847,000280: 21,2530 30070 CA RUPTREG1
038848,000281: 21,2531 60000 DOUBLE
038849,000282: 21,2532 57704 XCH VHY # VHY=VMP.UHYP M/CS*2(-5).
038850,000283: 21,2533 30061 CA ITEMP1 # NOW COMPUTE VHZ, VELOCITY DIRECTED ALONG
038851,000284: 21,2534 00006 EXTEND # THE Z-COORDINATE.
038852,000285: 21,2535 71725 MP UHZP # HI X OF DOWN-RANGE HALF-UNIT VECTOR.
038853,000286: 21,2536 56070 XCH RUPTREG1
038854,000287: 21,2537 30062 CA ITEMP2
038855,000288: 21,2540 00006 EXTEND
038856,000289: 21,2541 71727 MP UHZP +2 # Y
038857,000290: 21,2542 26070 ADS RUPTREG1 # ACCUMULATE PARTIAL PRODUCTS.
038858,000291: 21,2543 30063 CA ITEMP3
038859,000292: 21,2544 00006 EXTEND
038860,000293: 21,2545 71731 MP UHZP +4 # Z
038861,000294: 21,2546 26070 ADS RUPTREG1
038862,000295: 21,2547 30070 CA RUPTREG1
038863,000296: 21,2550 60000 DOUBLE
038864,000297: 21,2551 57705 XCH VHZ # VHZ = VMP.UHZP M/CS*2(-5).
038865,000298: 21,2552 35015 GET22/32 CAF EBANK6 # GET SIN(AOG),COS(AOG) FROM GPMATRIX.
038866,000299: 21,2553 54003 TS EBANK
038867,000300: 21,2554 E6,1417 EBANK= M22
038868,000301: 21,2554 31417 CA M22
038869,000302: 21,2555 54063 TS ITEMP3
038870,000303: 21,2556 31420 CA M32
038871,000304: 21,2557 54064 TS ITEMP4
038872,000305: 21,2560 35016 CAF EBANK7
038873,000306: 21,2561 54003 TS EBANK
038874,000307: 21,2562 E7,1536 EBANK= UNIT/R/
038875,000308: 21,2562 30064 LATFWDV CA ITEMP4 # COMPUTE LATERAL AND FORWARD VELOCITIES.
038876,000309: 21,2563 00006 EXTEND
038877,000310: 21,2564 71704 MP VHY
038878,000311: 21,2565 56070 XCH RUPTREG1
038879,000312: 21,2566 30063 CA ITEMP3
038880,000313: 21,2567 00006 EXTEND
038881,000314: 21,2570 71705 MP VHZ
038882,000315: 21,2571 26070 ADS RUPTREG1 # = VHY(COS)AOG+VHZ(SIN)AOG M/CS *2(-5)
038883,000316: 21,2572 32003 CA VELCONV # CONVERT LATERAL VELOCITY TO BIT UNITS.
038884,000317: 21,2573 00006 EXTEND
038885,000318: 21,2574 70070 MP RUPTREG1
038886,000319: 21,2575 20001 DDOUBL
038887,000320: 21,2576 57700 XCH LATVEL # LATERAL VELOCITY IN BIT UNITS *2(-14).
038888,000321: 21,2577 30064 CA ITEMP4 # COMPUTE FORWARD VELOCITY.
038889,000322: 21,2600 00006 EXTEND
038890,000323: 21,2601 71705 MP VHZ
038891,000324: 21,2602 56070 XCH RUPTREG1
038892,000325: 21,2603 30063 CA ITEMP3
038893,000326: 21,2604 00006 EXTEND
038894,000327: 21,2605 71704 MP VHY
038895,000328: 21,2606 40000 CS A
038896,000329: 21,2607 26070 ADS RUPTREG1 # =VHZ(COS)AOG-VHY(SIN)AOG M/CS *2(-5).
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Page 904
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038898,000331: 21,2610 32003 CA VELCONV # CONVERT FORWARD VELOCITY TO BIT UNITS.
038899,000332: 21,2611 00006 EXTEND
038900,000333: 21,2612 70070 MP RUPTREG1
038901,000334: 21,2613 20001 DDOUBL
038902,000335: 21,2614 57701 XCH FORVEL # FORWARD VELOCITY IN BIT UNITS *2(-14).
038903,000336:
038904,000337: 21,2615 42005 CS MAXVBITS # ACC.=-199.9989 FT./SEC.
038905,000338: 21,2616 54066 TS ITEMP6 # -547 BIT UNITS (OCTAL) AT 0.5571 FPS/BIT
038906,000339:
038907,000340: 21,2617 34753 CAF ONE # LOOP TWICE.
038908,000341: 21,2620 54065 VMONITOR TS ITEMP5 # FORWARD AND LATERAL VELOCITY LANDING
038909,000342: 21,2621 50065 INDEX ITEMP5 # ANALOG DISPLAYS MONITOR.
038910,000343: 21,2622 11700 CCS LATVEL
038911,000344: 21,2623 12627 TCF +4
038912,000345: 21,2624 12730 TCF LVLIMITS
038913,000346: 21,2625 12635 TCF +8D
038914,000347: 21,2626 12730 TCF LVLIMITS
038915,000348: 21,2627 50065 INDEX ITEMP5
038916,000349: 21,2630 41700 CS LATVEL
038917,000350: 21,2631 62005 AD MAXVBITS # +199.9989 FT./SEC.
038918,000351: 21,2632 00006 EXTEND
038919,000352: 21,2633 62643 BZMF CHKLASTY
038920,000353: 21,2634 12730 TCF LVLIMITS
038921,000354: 21,2635 50065 INDEX ITEMP5
038922,000355: 21,2636 31700 CA LATVEL
038923,000356: 21,2637 62005 AD MAXVBITS
038924,000357: 21,2640 00006 EXTEND
038925,000358: 21,2641 62643 BZMF +2
038926,000359: 21,2642 12730 TCF LVLIMITS
038927,000360: 21,2643 50065 CHKLASTY INDEX ITEMP5
038928,000361: 21,2644 11676 CCS LATVMETR
038929,000362: 21,2645 12651 TCF +4
038930,000363: 21,2646 12662 TCF LASTOK
038931,000364: 21,2647 12656 TCF +7
038932,000365: 21,2650 12662 TCF LASTOK
038933,000366: 21,2651 50065 INDEX ITEMP5
038934,000367: 21,2652 31700 CA LATVEL
038935,000368: 21,2653 00006 EXTEND
038936,000369: 21,2654 62701 BZMF LASTPOSY +5
038937,000370: 21,2655 12662 TCF +5
038938,000371: 21,2656 50065 INDEX ITEMP5
038939,000372: 21,2657 41700 CS LATVEL
038940,000373: 21,2660 00006 EXTEND
038941,000374: 21,2661 62716 BZMF LASTNEGY +4
038942,000375: 21,2662 50065 LASTOK INDEX ITEMP5
038943,000376: 21,2663 11702 CCS TRAKLATV
038944,000377: 21,2664 12674 TCF LASTPOSY
038945,000378: 21,2665 12667 TCF +2
038946,000379: 21,2666 12712 TCF LASTNEGY
038947,000380: 21,2667 50065 INDEX ITEMP5
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|
Page 905
|
038949,000382: 21,2670 31700 CA LATVEL
038950,000383: 21,2671 00006 EXTEND
038951,000384: 21,2672 62720 BZMF NEGVMAXY
038952,000385: 21,2673 12703 TCF POSVMAXY
038953,000386: 21,2674 50065 LASTPOSY INDEX ITEMP5
038954,000387: 21,2675 31700 CA LATVEL
038955,000388: 21,2676 00006 EXTEND
038956,000389: 21,2677 62701 BZMF +2
038957,000390: 21,2700 12703 TCF POSVMAXY
038958,000391: 21,2701 42005 CS MAXVBITS
038959,000392: 21,2702 13024 TCF ZEROLSTY
038960,000393: 21,2703 50065 POSVMAXY INDEX ITEMP5
038961,000394: 21,2704 41676 CS LATVMETR
038962,000395: 21,2705 62005 AD MAXVBITS
038963,000396: 21,2706 50065 INDEX ITEMP5
038964,000397: 21,2707 56072 XCH RUPTREG3
038965,000398: 21,2710 34753 CAF ONE
038966,000399: 21,2711 13027 TCF ZEROLSTY +3
038967,000400: 21,2712 50065 LASTNEGY INDEX ITEMP5
038968,000401: 21,2713 31700 CA LATVEL
038969,000402: 21,2714 00006 EXTEND
038970,000403: 21,2715 62720 BZMF NEGVMAXY
038971,000404: 21,2716 32005 CA MAXVBITS
038972,000405: 21,2717 13024 TCF ZEROLSTY
038973,000406: 21,2720 50065 NEGVMAXY INDEX ITEMP5
038974,000407: 21,2721 31676 CA LATVMETR
038975,000408: 21,2722 62005 AD MAXVBITS
038976,000409: 21,2723 40000 COM
038977,000410: 21,2724 50065 INDEX ITEMP5
038978,000411: 21,2725 56072 XCH RUPTREG3
038979,000412: 21,2726 44753 CS ONE
038980,000413: 21,2727 13027 TCF ZEROLSTY +3
038981,000414: 21,2730 50065 LVLIMITS INDEX ITEMP5
038982,000415: 21,2731 11702 CCS TRAKLATV
038983,000416: 21,2732 12761 TCF LATVPOS
038984,000417: 21,2733 12735 TCF +2
038985,000418: 21,2734 12766 TCF LATVNEG
038986,000419: 21,2735 50065 INDEX ITEMP5
038987,000420: 21,2736 41676 CS LATVMETR
038988,000421: 21,2737 00006 EXTEND
038989,000422: 21,2740 62742 BZMF +2
038990,000423: 21,2741 12775 TCF NEGLMLV
038991,000424: 21,2742 50065 INDEX ITEMP5
038992,000425:
038993,000426: 21,2743 41700 CS LATVEL
038994,000427: 21,2744 00006 EXTEND
038995,000428: 21,2745 63020 BZMF LVMINLM
038996,000429: 21,2746 60066 AD ITEMP6
038997,000430: 21,2747 50065 INDEX ITEMP5
038998,000431: 21,2750 61676 AD LATVMETR
038999,000432: 21,2751 00006 EXTEND
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|
Page 906
|
039001,000434: 21,2752 63020 BZMF LVMINLM
039002,000435: 21,2753 50065 INDEX ITEMP5
039003,000436: 21,2754 61700 AD LATVEL
039004,000437: 21,2755 00006 EXTEND
039005,000438: 21,2756 50065 INDEX ITEMP5
039006,000439: 21,2757 61676 SU LATVMETR
039007,000440: 21,2760 13024 TCF ZEROLSTY
039008,000441: 21,2761 50065 LATVPOS INDEX ITEMP5
039009,000442: 21,2762 41700 CS LATVEL
039010,000443: 21,2763 00006 EXTEND
039011,000444: 21,2764 63020 BZMF LVMINLM
039012,000445: 21,2765 12772 TCF +5
039013,000446: 21,2766 50065 LATVNEG INDEX ITEMP5
039014,000447: 21,2767 31700 CA LATVEL
039015,000448: 21,2770 00006 EXTEND
039016,000449: 21,2771 63020 BZMF LVMINLM
039017,000450: 21,2772 50065 INDEX ITEMP5
039018,000451: 21,2773 41676 CS LATVMETR
039019,000452: 21,2774 13024 TCF ZEROLSTY
039020,000453: 21,2775 50065 NEGLMLV INDEX ITEMP5
039021,000454: 21,2776 31700 CA LATVEL
039022,000455: 21,2777 00006 EXTEND
039023,000456: 21,3000 63020 BZMF LVMINLM
039024,000457: 21,3001 32005 CA MAXVBITS
039025,000458: 21,3002 50065 INDEX ITEMP5
039026,000459: 21,3003 61676 AD LATVMETR
039027,000460: 21,3004 40000 COM
039028,000461: 21,3005 50065 INDEX ITEMP5
039029,000462: 21,3006 61700 AD LATVEL
039030,000463: 21,3007 00006 EXTEND
039031,000464: 21,3010 63020 BZMF LVMINLM
039032,000465: 21,3011 00006 EXTEND
039033,000466: 21,3012 50065 INDEX ITEMP5
039034,000467: 21,3013 61700 SU LATVEL
039035,000468: 21,3014 50065 INDEX ITEMP5
039036,000469: 21,3015 61676 AD LATVMETR
039037,000470: 21,3016 40000 COM
039038,000471: 21,3017 13024 TCF ZEROLSTY
039039,000472: 21,3020 50065 LVMINLM INDEX ITEMP5
039040,000473: 21,3021 41676 CS LATVMETR
039041,000474: 21,3022 50065 INDEX ITEMP5
039042,000475: 21,3023 61700 AD LATVEL
039043,000476: 21,3024 50065 ZEROLSTY INDEX ITEMP5
039044,000477: 21,3025 56072 XCH RUPTREG3
039045,000478: 21,3026 34755 CAF ZERO
039046,000479: 21,3027 50065 INDEX ITEMP5
039047,000480: 21,3030 55702 TS TRAKLATV
039048,000481: 21,3031 50065 INDEX ITEMP5
039049,000482: 21,3032 30072 CA RUPTREG3
039050,000483: 21,3033 64754 AD NEG0 # AVOIDS +0 DINC HARDWARE MALFUNCTION
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|
Page 907
|
039052,000485: 21,3034 50065 INDEX ITEMP5
039053,000486: 21,3035 54053 TS CDUTCMD
039054,000487: 21,3036 50065 INDEX ITEMP5
039055,000488: 21,3037 30072 CA RUPTREG3
039056,000489: 21,3040 50065 INDEX ITEMP5
039057,000490: 21,3041 27676 ADS LATVMETR
039058,000491: 21,3042 10065 CCS ITEMP5 # FIRST MONITOR FORWARD THEN LATERAL VEL.
039059,000492: 21,3043 12620 TCF VMONITOR
039060,000493:
039061,000494: 21,3044 35020 CAF BITSET # DRIVE THE X-POINTER DISPLAY.
039062,000495: 21,3045 00006 EXTEND
039063,000496: 21,3046 05014 WOR CHAN14
039064,000497: 21,3047 01714 TC LADQSAVE # GO TO ALTROUT +1 OR TO ALTOUT +1
039065,000498: 21,3050 34755 ZERODATA CAF ZERO # ZERO ALTSAVE AND ALTSAVE +1 - - -
039066,000499: 21,3051 54001 TS L # NO NEGATIVE ALTITUDES ALLOWED.
039067,000500: 21,3052 12270 TCF ZDATA2
039068,000501:
039069,000502: # ************************************************************************
039070,000503:
039071,000504: 21,3053 40074 DISPRSET CS FLAGWRD0 # ARE WE IN DESCENT TRAJECTORY?
039072,000505: 21,3054 74752 MASK R10FLBIT
039073,000506: 21,3055 00006 EXTEND
039074,000507: 21,3056 13067 BZF ABORTON # NO.
039075,000508: 21,3057 34744 CAF BIT8 # YES.
039076,000509: 21,3060 71303 MASK IMODES33 # CHECK IF INERTIAL DATA JUST DISPLAYED.
039077,000510: 21,3061 10000 CCS A
039078,000511: 21,3062 34752 CAF BIT2 # YES. DISABLE RR ERROR COUNTER
039079,000512: 21,3063 64744 AD BIT8 # NO. REMOVE DISPLAY INERTIAL DATA
039080,000513: 21,3064 40000 COM
039081,000514: 21,3065 00006 EXTEND
039082,000515: 21,3066 03012 WAND CHAN12
039083,000516: 21,3067 43076 ABORTON CS BITS8/7 # RESET INERTIAL DATA, INTERLEAVE FLAGS.
039084,000517: 21,3070 71303 MASK IMODES33
039085,000518: 21,3071 55303 TS IMODES33
039086,000519: 21,3072 44736 CS DIDFLBIT
039087,000520: 21,3073 70075 MASK FLAGWRD1
039088,000521: 21,3074 54075 TS FLAGWRD1 # RESET DIDFLAG.
039089,000522: 21,3075 15261 TCF TASKOVER
039090,000523:
039091,000524: # ************************************************************************
039092,000525:
039093,000526: 21,3076 00300 BITS8/7 OCT 00300 # INERTIAL DATA AND INTERLEAVE FLAGS.
039094,000527: 21,3077 5020 BITSET = PRIO6
039095,000528:
039096,000529: # ************************************************************************
039097,000530:
039098,000531:
End of include-file LANDING_ANALOG_DISPLAYS.agc. Parent file is MAIN.agc