Source Code
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These source-code files were derived from scans of the
Colossus 237 (Apollo 8 Command Module) program listing from the private collection of original
AGC developer Fred Martin. Scanning was by Ron Burkey. Pre-existing Colossus 249
(Apollo 9 CM) source files were used as a template, and changes between Colossus 249
and Colossus 237 were manually transcribed by a team of volunteers. Note
that the page images
presented online are of reduced quality, and that additional images
are available. Report any conversion errors or legibility
problems in page images to info@sandroid.org.
Notations on the program listing read, in part:GAP: ASSEMBLE REVISION 237 OF AGC PROGRAM COLOSSUS BY NASA 2021111-031 1:17 AUG. 24, 1968Note that the date is the date of the printout, not the date of the program revision. |
017142,000002: ## Copyright: Public domain.
017143,000003: ## Filename: ANGLFIND.agc
017144,000004: ## Purpose: Part of the source code for Colossus build 237.
017145,000005: ## This is for the Command Module's (CM) Apollo Guidance
017146,000006: ## Computer (AGC), for Apollo 8.
017147,000007: ## Assembler: yaYUL
017148,000008: ## Contact: Onno Hommes <ohommes@alumni.cmu.edu>
017149,000009: ## Website: www.ibiblio.org/apollo/index.html
017150,000010: ## Page Scans: www.ibiblio.org/apollo/ScansForConversion/Colossus237/
017151,000011: ## Mod history: 2010-05-30 OH Adapted from corresponding Colossus 249 file.
017152,000012: ## 2010-12-04 JL Remove Colossus 249 header comments. Change
017153,000013: ## to double-hash page numbers.
017154,000014: ## 2011-01-27 JL Minor fixes.
017155,000015: ## 2016-08-14 RSB Added SBANK for addressing discrepancies.
017156,000016: ## 2016-12-30 RSB Proofed comment text using octopus/ProoferComments,
017157,000017: ## and corrected errors found.
017158,000018:
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Page 390 |
017160,000020: 15,2000 BANK 15
017161,000021: 22,2000 SETLOC KALCMON1
017162,000022: 22,2000 BANK
017163,000023:
017164,000024: 22,2000 E6,1661 EBANK= BCDU
017165,000025:
017166,000026: 22,2000 COUNT 22/KALC
017167,000027:
017168,000028: 22,2000 06006 KALCMAN3 TC INTPRET
017169,000029: 22,2001 77634 RTB
017170,000030: 22,2002 44376 READCDUK # PICK UP CURRENT CDU ANGLES
017171,000031: 22,2003 03262 STORE BCDU # STORE THE INITIAL S/C ANGLES
017172,000032: 22,2004 72364 AXC,2 TLOAD # COMPUTE THE TRANSFORMATION FROM
017173,000033: 22,2005 03320 MIS # INITIAL S/C AXES TO STABLE MEMBER AXES
017174,000034: 22,2006 03262 BCDU # (MIS)
017175,000035: 22,2007 77624 CALL
017176,000036: 22,2010 44405 CDUTODCM
017177,000037: 22,2011 72364 AXC,2 TLOAD # COMPUTE THE TRANSFORMATION FROM
017178,000038: 22,2012 03425 MFS # FINAL S/C AXES TO STABLE MEMBER AXES
017179,000039: 22,2013 01156 CPHI # (MFS)
017180,000040: 22,2014 77624 CALL
017181,000041: 22,2015 44405 CDUTODCM
017182,000042: 22,2016 45160 SECAD AXC,1 CALL # MIS AND MFS ARRAYS CALCULATED $2
017183,000043: 22,2017 03320 MIS
017184,000044: 22,2020 44334 TRANSPOS
017185,000045: 22,2021 77775 VLOAD
017186,000046: 22,2022 77626 STADR
017187,000047: 22,2023 50474 STOVL TMIS +12D
017188,000048: 22,2024 77626 STADR
017189,000049: 22,2025 50502 STOVL TMIS +6
017190,000050: 22,2026 77626 STADR
017191,000051: 22,2027 74510 STORE TMIS # TMIS = TRANSPOSE(MIS) SCALED BY 2
017192,000052: 22,2030 75160 AXC,1 AXC,2
017193,000053: 22,2031 03266 TMIS
017194,000054: 22,2032 03425 MFS
017195,000055: 22,2033 77624 CALL
017196,000056: 22,2034 44304 MXM3
017197,000057: 22,2035 45575 VLOAD STADR
017198,000058: 22,2036 50335 STOVL MFI +12D
017199,000059: 22,2037 77626 STADR
017200,000060: 22,2040 50343 STOVL MFI +6
017201,000061: 22,2041 77626 STADR
017202,000062: 22,2042 74351 STORE MFI # MFI = TMIS MFS (SCALED BY 4)
017203,000063: 22,2043 45001 SETPD CALL # TRANSPOSE MFI IN PD LIST
017204,000064: 22,2044 00023 18D
017205,000065: 22,2045 44343 TRNSPSPD
017206,000066: 22,2046 45575 VLOAD STADR
017207,000067: 22,2047 50474 STOVL TMFI +12D
017208,000068: 22,2050 77626 STADR
017209,000069: 22,2051 50502 STOVL TMFI +6
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Page 391 |
017211,000071: 22,2052 77626 STADR
017212,000072: 22,2053 74510 STORE TMFI # TMFI = TRANSPOSE (MFI) SCALED BY 4
017213,000073:
017214,000074: # CALCULATE COFSKEW AND MFISYM
017215,000075:
017216,000076: 22,2054 45345 DLOAD DSU
017217,000077: 22,2055 03271 TMFI +2
017218,000078: 22,2056 03430 MFI +2
017219,000079: 22,2057 45325 PDDL DSU # CALCULATE COF SCALED BY 2/SIN(AM)
017220,000080: 22,2060 03432 MFI +4
017221,000081: 22,2061 03273 TMFI +4
017222,000082: 22,2062 45325 PDDL DSU
017223,000083: 22,2063 03301 TMFI +10D
017224,000084: 22,2064 03440 MFI +10D
017225,000085: 22,2065 77666 VDEF
017226,000086: 22,2066 03311 STORE COFSKEW # EQUALS MFISKEW
017227,000087:
017228,000088: # CALCULATE AM AND PROCEED ACCORDING TO ITS MAGNITUDE
017229,000089:
017230,000090: 22,2067 43345 DLOAD DAD
017231,000091: 22,2070 03426 MFI
017232,000092: 22,2071 03446 MFI +16D
017233,000093: 22,2072 43225 DSU DAD
017234,000094: 22,2073 15322 DP1/4TH
017235,000095: 22,2074 03436 MFI +8D
017236,000096: 22,2075 03317 STORE CAM # CAM = (MFI0+MFI4+MFI8-1)/2 HALF SCALE
017237,000097: 22,2076 77726 ARCCOS
017238,000098: 22,2077 03365 STORE AM # AM=ARCCOS(CAM) (AM SCALED BY 2)
017239,000099: 22,2100 51025 DSU BPL
017240,000100: 22,2101 04367 MINANG
017241,000101: 22,2102 44111 CHECKMAX
017242,000102: 22,2103 77776 EXIT # MANEUVER LESS THAN 0.25 DEG
017243,000103: 22,2104 00004 INHINT # GO DIRECTLY INTO ATTITUDE HOLD
017244,000104: 22,2105 44712 CS ONE # ABOUT COMMANDED ANGLES
017245,000105: 22,2106 55332 TS HOLDFLAG # NOGO WILL STOP ANY RATE AND SET UP FOR A
017246,000106: 22,2107 03301 TC LOADCDUD # GOOD RETURN
017247,000107: 22,2110 12727 TCF NOGO
017248,000108:
017249,000109: 22,2111 45345 CHECKMAX DLOAD DSU
017250,000110: 22,2112 03365 AM
017251,000111: 22,2113 04370 MAXANG
017252,000112: 22,2114 77244 BPL VLOAD
017253,000113: 22,2115 44123 ALTCALC # UNIT
017254,000114: 22,2116 03311 COFSKEW # COFSKEW
017255,000115: 22,2117 77656 UNIT
017256,000116: 22,2120 03343 STORE COF # COF IS THE MANEUVER AXIS
017257,000117: 22,2121 77650 GOTO # SEE IF MANEUVER GOES THRU GIMBAL LOCK
017258,000118: 22,2122 44736 LOCSKIRT
017259,000119: 22,2123 53375 ALTCALC VLOAD VAD # IF AM GREATER THAN 170 DEGREES
017260,000120: 22,2124 03426 MFI
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Page 392 |
017262,000122: 22,2125 03267 TMFI
017263,000123: 22,2126 77762 VSR1
017264,000124: 22,2127 27267 STOVL MFISYM
017265,000125: 22,2130 03434 MFI +6
017266,000126: 22,2131 74455 VAD VSR1
017267,000127: 22,2132 03275 TMFI +6
017268,000128: 22,2133 27275 STOVL MFISYM +6
017269,000129: 22,2134 03442 MFI +12D
017270,000130: 22,2135 74455 VAD VSR1
017271,000131: 22,2136 03303 TMFI +12D
017272,000132: 22,2137 03303 STORE MFISYM +12D # MFISYM=(MFI+TMFI)/2 SCALED BY 4
017273,000133:
017274,000134:
017275,000135: # CALCULATE COF
017276,000136:
017277,000137: 22,2140 70545 DLOAD SR1
017278,000138: 22,2141 03317 CAM
017279,000139: 22,2142 45325 PDDL DSU # PD0 CAM $4
017280,000140: 22,2143 15330 DPHALF
017281,000141: 22,2144 03317 CAM
017282,000142: 22,2145 65204 BOVB PDDL # PD2 1 - CAM $2
017283,000143: 22,2146 45707 SIGNMPAC
017284,000144: 22,2147 03307 MFISYM +16D
017285,000145: 22,2150 56225 DSU DDV
017286,000146: 22,2151 00001 0
017287,000147: 22,2152 00003 2
017288,000148: 22,2153 65366 SQRT PDDL # COFZ = SQRT(MFISYM8-CAM)/1-CAM)
017289,000149: 22,2154 03277 MFISYM +8D # $ ROOT 2
017290,000150: 22,2155 56225 DSU DDV
017291,000151: 22,2156 00001 0
017292,000152: 22,2157 00003 2
017293,000153: 22,2160 65366 SQRT PDDL # COFY = SQRT(MFISYM4-CAM)/(1-CAM) $ROOT2
017294,000154: 22,2161 03267 MFISYM
017295,000155: 22,2162 56225 DSU DDV
017296,000156: 22,2163 00001 0
017297,000157: 22,2164 00003 2
017298,000158: 22,2165 55566 SQRT VDEF # COFX = SQRT(MFISYM-CAM)/(1-CAM) $ROOT 2
017299,000159: 22,2166 77656 UNIT
017300,000160: 22,2167 03343 STORE COF
017301,000161:
017302,000162: # DETERMINE LARGEST COF AND ADJUST ACCORDINGLY
017303,000163:
017304,000164: 22,2170 45345 COFMAXGO DLOAD DSU
017305,000165: 22,2171 03343 COF
017306,000166: 22,2172 03345 COF +2
017307,000167: 22,2173 71240 BMN DLOAD # COFY G COFX
017308,000168: 22,2174 44203 COMP12
017309,000169: 22,2175 03343 COF
017310,000170: 22,2176 50025 DSU BMN
017311,000171: 22,2177 03347 COF +4
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Page 393 |
017313,000173: 22,2200 44260 METHOD3 # COFZ G COFX OR COFY
017314,000174: 22,2201 77650 GOTO
017315,000175: 22,2202 44234 METHOD1 # COFX G COFY OR COFZ
017316,000176: 22,2203 45345 COMP12 DLOAD DSU
017317,000177: 22,2204 03345 COF +2
017318,000178: 22,2205 03347 COF +4
017319,000179: 22,2206 77640 BMN
017320,000180: 22,2207 44260 METHOD3 # COFZ G COFY OR COFX
017321,000181:
017322,000182: 22,2210 51145 METHOD2 DLOAD BPL # COFY MAX
017323,000183: 22,2211 03313 COFSKEW +2 # UY
017324,000184: 22,2212 44216 U2POS
017325,000185: 22,2213 57575 VLOAD VCOMP
017326,000186: 22,2214 03343 COF
017327,000187: 22,2215 03343 STORE COF
017328,000188: 22,2216 51145 U2POS DLOAD BPL
017329,000189: 22,2217 03271 MFISYM +2 # UX UY
017330,000190: 22,2220 44224 OKU21
017331,000191: 22,2221 57545 DLOAD DCOMP # SIGN OF UX OPPOSITE TO UY
017332,000192: 22,2222 03343 COF
017333,000193: 22,2223 03343 STORE COF
017334,000194: 22,2224 51145 OKU21 DLOAD BPL
017335,000195: 22,2225 03301 MFISYM +10D # UY UZ
017336,000196: 22,2226 44736 LOCSKIRT
017337,000197: 22,2227 57545 DLOAD DCOMP # SIGN OF UZ OPPOSITE TO UY
017338,000198: 22,2230 03347 COF +4
017339,000199: 22,2231 03347 STORE COF +4
017340,000200: 22,2232 77650 GOTO
017341,000201: 22,2233 44736 LOCSKIRT
017342,000202: 22,2234 51145 METHOD1 DLOAD BPL # COFX MAX
017343,000203: 22,2235 03311 COFSKEW # UX
017344,000204: 22,2236 44242 U1POS
017345,000205: 22,2237 57575 VLOAD VCOMP
017346,000206: 22,2240 03343 COF
017347,000207: 22,2241 03343 STORE COF
017348,000208: 22,2242 51145 U1POS DLOAD BPL
017349,000209: 22,2243 03271 MFISYM +2 # UX UY
017350,000210: 22,2244 44250 OKU12
017351,000211: 22,2245 57545 DLOAD DCOMP
017352,000212: 22,2246 03345 COF +2 # SIGN OF UY OPPOSITE TO UX
017353,000213: 22,2247 03345 STORE COF +2
017354,000214: 22,2250 51145 OKU12 DLOAD BPL
017355,000215: 22,2251 03273 MFISYM +4 # UX UZ
017356,000216: 22,2252 44736 LOCSKIRT
017357,000217: 22,2253 57545 DLOAD DCOMP # SIGN OF UZ OPPOSITE TO UY
017358,000218: 22,2254 03347 COF +4
017359,000219: 22,2255 03347 STORE COF +4
017360,000220: 22,2256 77650 GOTO
017361,000221: 22,2257 44736 LOCSKIRT
017362,000222: 22,2260 51145 METHOD3 DLOAD BPL # COFZ MAX
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Page 394 |
017364,000224: 22,2261 03315 COFSKEW +4 # UZ
017365,000225: 22,2262 44266 U3POS
017366,000226: 22,2263 57575 VLOAD VCOMP
017367,000227: 22,2264 03343 COF
017368,000228: 22,2265 03343 STORE COF
017369,000229: 22,2266 51145 U3POS DLOAD BPL
017370,000230: 22,2267 03273 MFISYM +4 # UX UZ
017371,000231: 22,2270 44274 OKU31
017372,000232: 22,2271 57545 DLOAD DCOMP
017373,000233: 22,2272 03343 COF # SIGN OF UX OPPOSITE TO UZ
017374,000234: 22,2273 03343 STORE COF
017375,000235: 22,2274 51145 OKU31 DLOAD BPL
017376,000236: 22,2275 03301 MFISYM +10D # UY UZ
017377,000237: 22,2276 44736 LOCSKIRT
017378,000238: 22,2277 57545 DLOAD DCOMP
017379,000239: 22,2300 03345 COF +2 # SIGN OF UY OPPOSITE TO UZ
017380,000240: 22,2301 03345 STORE COF +2
017381,000241: 22,2302 77650 GOTO
017382,000242: 22,2303 44736 LOCSKIRT
017383,000243:
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Page 395 |
017385,000245:
017386,000246: # MATRIX OPERATIONS
017387,000247:
017388,000248: 22,2304 77601 MXM3 SETPD # MXM3 MULTIPLIES 2 3X3 MATRICES
017389,000249: 22,2305 00001 0 # AND LEAVES RESULT IN PD LIST
017390,000250: 22,2306 64743 DLOAD* PDDL* # ADDRESS OF 1ST MATRIX IN XR1
017391,000251: 22,2307 77762 12D,2 # ADDRESS OF 2ND MATRIX IN XR2
017392,000252: 22,2310 77770 6,2
017393,000253: 22,2311 55523 PDDL* VDEF # DEFINE VECTOR M2(COL 1)
017394,000254: 22,2312 77776 0,2
017395,000255: 22,2313 64717 MXV* PDDL* # M1XM2(COL 1) IN PD
017396,000256: 22,2314 00001 0,1
017397,000257: 22,2315 77760 14D,2
017398,000258: 22,2316 64723 PDDL* PDDL*
017399,000259: 22,2317 77766 8D,2
017400,000260: 22,2320 77774 2,2
017401,000261: 22,2321 63666 VDEF MXV* # DEFINE VECTOR M2(COL 2)
017402,000262: 22,2322 00001 0,1
017403,000263: 22,2323 64723 PDDL* PDDL* # M1XM2(COL2) IN PD
017404,000264: 22,2324 77756 16D,2
017405,000265: 22,2325 77764 10D,2
017406,000266: 22,2326 55523 PDDL* VDEF # DEFINE VECTOR M2(COL 3)
017407,000267: 22,2327 77772 4,2
017408,000268: 22,2330 41517 MXV* PUSH # M1XM2(COL 3) IN PD
017409,000269: 22,2331 00001 0,1
017410,000270: 22,2332 77650 GOTO
017411,000271: 22,2333 44343 TRNSPSPD # REVERSE ROWS AND COLS IN PD AND
017412,000272: # RETURN WITH M1XM2 IN PD LIST
017413,000273:
017414,000274: 22,2334 76601 TRANSPOS SETPD VLOAD* # TRANSPOS TRANSPOSES A 3X3 MATRIX
017415,000275: 22,2335 00001 0 # AND LEAVES RESULT IN PD LIST
017416,000276: 22,2336 00001 0,1 # MATRIX ADDRESS IN XR1
017417,000277: 22,2337 62713 PDVL* PDVL*
017418,000278: 22,2340 00007 6,1
017419,000279: 22,2341 00015 12D,1
017420,000280: 22,2342 77606 PUSH # MATRIX IN PD
017421,000281: 22,2343 65345 TRNSPSPD DLOAD PDDL # ENTER WITH MATRIX IN PD LIST
017422,000282: 22,2344 00003 2
017423,000283: 22,2345 00007 6
017424,000284: 22,2346 14003 STODL 2
017425,000285: 22,2347 77626 STADR
017426,000286: 22,2350 63770 STODL 6
017427,000287: 22,2351 00005 4
017428,000288: 22,2352 77725 PDDL
017429,000289: 22,2353 00015 12D
017430,000290: 22,2354 14005 STODL 4
017431,000291: 22,2355 77626 STADR
017432,000292: 22,2356 63762 STODL 12D
017433,000293: 22,2357 00013 10D
017434,000294: 22,2360 77725 PDDL
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Page 396 |
017436,000296: 22,2361 00017 14D
017437,000297: 22,2362 14013 STODL 10D
017438,000298: 22,2363 77626 STADR
017439,000299: 22,2364 77760 STORE 14D
017440,000300: 22,2365 77616 RVQ # RETURN WITH TRANSPOSED MATRIX IN PD LIST
017441,000301: 22,2366 00013 MINANG DEC .00069375
017442,000302: 22,2367 17071 MAXANG DEC .472222
017443,000303: # GIMBAL LOCK CONSTANTS
017444,000304: # D = MGA CORRESPONDING TO GIMBAL LOCK = 60 DEGREES
017445,000305: # NGL = BUFFER ANGLE (TO AVOID DIVISIONS BY ZERO) = 2 DEGREES
017446,000306:
017447,000307: 22,2370 15667 SD DEC .433015 # = SIN(D) $2
017448,000308: 22,2371 33555 K3S1 DEC .86603 # = SIN(D) $1
017449,000309: 22,2372 67777 K4 DEC -.25 # = -COS(D) $2
017450,000310: 22,2373 04000 K4SQ DEC .125 # = COS(D)COS(D) $2
017451,000311: 22,2374 00217 SNGLCD DEC .008725 # = SIN(NGL)COS(D) $2
017452,000312: 22,2375 17773 CNGL DEC .499695 # = COS(NGL) $2
017453,000313: 22,2376 00004 READCDUK INHINT # LOAD T(MPAC) WITH THE CURRENT CDU ANGLES
017454,000314: 22,2377 30034 CA CDUZ
017455,000315: 22,2400 54156 TS MPAC +2
017456,000316: 22,2401 00006 EXTEND
017457,000317: 22,2402 30033 DCA CDUX
017458,000318: 22,2403 00003 RELINT
017459,000319: 22,2404 16445 TCF TLOAD +6
017460,000320: 16,2000 BANK 16
017461,000321: 22,2000 SETLOC KALCMON2
017462,000322: 22,2000 BANK
017463,000323:
017464,000324: 22,2405 COUNT* $$/KALC
017465,000325:
017466,000326: 22,2405 66370 CDUTODCM AXT,1 SSP # SUBROUTINE TO COMPUTE DIRECTION COSINE
017467,000327: 22,2406 00003 OCT 3 # MATRIX RELATING S/C AXES TO STABLE
017468,000328: 22,2407 00051 S1 # MEMBER AXES FROM 3 CDU ANGLES IN T(MPAC)
017469,000329: 22,2410 00001 OCT 1 # SET XR1, S1 AND PD FOR LOOP
017470,000330: 22,2411 00010 STORE 7
017471,000331: 22,2412 77601 SETPD
017472,000332: 22,2413 00001 0
017473,000333: 22,2414 47133 LOOPSIN SLOAD* RTB
017474,000334: 22,2415 00013 10D,1
017475,000335: 22,2416 45510 CDULOGIC
017476,000336: 22,2417 00013 STORE 10D # LOAD PD WITH 0 SIN(PHI)
017477,000337: 22,2420 65356 SIN PDDL # 2 COS(PHI)
017478,000338: 22,2421 00013 10D # 4 SIN(THETA)
017479,000339: 22,2422 41546 COS PUSH # 6 COS(THETA)
017480,000340: 22,2423 71300 TIX,1 DLOAD # 8 SIN(PSI)
017481,000341: 22,2424 44414 LOOPSIN # 10 COS(PSI)
017482,000342: 22,2425 00007 6
017483,000343: 22,2426 72405 DMP SL1
017484,000344: 22,2427 00013 10D
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Page 397 |
017486,000346: 22,2430 10001 STORE 0,2
017487,000347: 22,2431 77745 DLOAD
017488,000348: 22,2432 00005 4
017489,000349: 22,2433 65205 DMP PDDL
017490,000350: 22,2434 00001 0 # (PD6 SIN(THETA)SIN(PHI))
017491,000351: 22,2435 00007 6
017492,000352: 22,2436 41205 DMP DMP
017493,000353: 22,2437 00011 8D
017494,000354: 22,2440 00003 2
017495,000355: 22,2441 44352 SL1 BDSU
017496,000356: 22,2442 00015 12D
017497,000357: 22,2443 77752 SL1
017498,000358: 22,2444 10003 STORE 2,2
017499,000359: 22,2445 77745 DLOAD
017500,000360: 22,2446 00003 2
017501,000361: 22,2447 65205 DMP PDDL # (PD7 COS(PHI)SIN(THETA)) SCALED 4
017502,000362: 22,2450 00005 4
017503,000363: 22,2451 00007 6
017504,000364: 22,2452 41205 DMP DMP
017505,000365: 22,2453 00011 8D
017506,000366: 22,2454 00001 0
017507,000367: 22,2455 77752 SL1
017508,000368: 22,2456 72415 DAD SL1
017509,000369: 22,2457 00017 14D
017510,000370: 22,2460 10005 STORE 4,2
017511,000371: 22,2461 77745 DLOAD
017512,000372: 22,2462 00011 8D
017513,000373: 22,2463 10007 STORE 6,2
017514,000374: 22,2464 77745 DLOAD
017515,000375: 22,2465 00013 10D
017516,000376: 22,2466 72405 DMP SL1
017517,000377: 22,2467 00003 2
017518,000378: 22,2470 10011 STORE 8D,2
017519,000379: 22,2471 77745 DLOAD
017520,000380: 22,2472 00013 10D
017521,000381: 22,2473 57405 DMP DCOMP
017522,000382: 22,2474 00001 0
017523,000383: 22,2475 77752 SL1
017524,000384: 22,2476 10013 STORE 10D,2
017525,000385: 22,2477 77745 DLOAD
017526,000386: 22,2500 00005 4
017527,000387: 22,2501 57405 DMP DCOMP
017528,000388: 22,2502 00013 10D
017529,000389: 22,2503 77752 SL1
017530,000390: 22,2504 10015 STORE 12D,2
017531,000391: 22,2505 77745 DLOAD
017532,000392: 22,2506 72405 DMP SL1 # (PUSH UP 7)
017533,000393: 22,2507 00011 8D
017534,000394: 22,2510 41325 PDDL DMP # (PD7 COS(PHI)SIN(THETA)SIN(PSI)) SCALE4
017535,000395: 22,2511 00007 6
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Page 398 |
017537,000397: 22,2512 00001 0
017538,000398: 22,2513 72415 DAD SL1 # (PUSH UP 7)
017539,000399: 22,2514 77626 STADR # C7=COS(PHI)SIN(THETA)SIN(PSI)
017540,000400: 22,2515 67760 STORE 14D,2
017541,000401: 22,2516 77745 DLOAD
017542,000402: 22,2517 72405 DMP SL1 # (PUSH UP 6)
017543,000403: 22,2520 00011 8D
017544,000404: 22,2521 41325 PDDL DMP # (PD6 SIN(THETA)SIN(PHI)SIN(PSI)) SCALE4
017545,000405: 22,2522 00007 6
017546,000406: 22,2523 00003 2
017547,000407: 22,2524 72425 DSU SL1 # (PUSH UP 6)
017548,000408: 22,2525 77626 STADR
017549,000409: 22,2526 67756 STORE 16D,2 # C8=-SIN(THETA)SIN(PHI)SIN(PSI)
017550,000410: 22,2527 77616 RVQ # +COS(THETA)COS(PHI)
017551,000411: 22,2530 ENDDCM EQUALS
017552,000412:
017553,000413:
017554,000414: 15,2000 BANK 15
017555,000415: 22,2000 SETLOC KALCMON1
017556,000416: 22,2000 BANK
017557,000417:
017558,000418: # CALCULATION OF THE MATRIX DEL......
017559,000419:
017560,000420: # * * --T *
017561,000421: # DEL = (IDMATRIX)COS(A)+UU (1-COS(A))+UX SIN(A) SCALED 1
017562,000422:
017563,000423: # -
017564,000424: # WHERE U IS A UNIT VECTOR (DP SCALED 2) ALONG THE AXIS OF ROTATION.
017565,000425: # A IS THE ANGLE OF ROTATION (DP SCALED 2)
017566,000426: # -
017567,000427: # UPON ENTRY THE STARTING ADDRESS OF U IS COF, AND A IS IN MPAC
017568,000428:
017569,000429: 22,2530 COUNT 22/KALC
017570,000430:
017571,000431: 22,2530 41401 DELCOMP SETPD PUSH # MPAC CONTAINS THE ANGLE A
017572,000432: 22,2531 00001 0
017573,000433: 22,2532 65356 SIN PDDL # PD0 = SIN(A)
017574,000434: 22,2533 41546 COS PUSH # PD2 = COS(A)
017575,000435: 22,2534 65302 SR2 PDDL # PD2 = COS(A) $8
017576,000436: 22,2535 41021 BDSU BOVB # PD4 = 1-COS(A) $2
017577,000437: 22,2536 15330 DPHALF
017578,000438: 22,2537 45707 SIGNMPAC
017579,000439:
017580,000440: # COMPUTE THE DIAGONAL COMPONENTS OF DEL
017581,000441:
017582,000442: 22,2540 77725 PDDL
017583,000443: 22,2541 03343 COF
017584,000444: 22,2542 41316 DSQ DMP
017585,000445: 22,2543 00005 4
017586,000446: 22,2544 52415 DAD SL3
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Page 399 |
017588,000448: 22,2545 00003 2
017589,000449: 22,2546 77604 BOVB
017590,000450: 22,2547 45707 SIGNMPAC
017591,000451: 22,2550 17426 STODL DEL # UX UX(U-COS(A)) +COS(A) $1
017592,000452: 22,2551 03345 COF +2
017593,000453: 22,2552 41316 DSQ DMP
017594,000454: 22,2553 00005 4
017595,000455: 22,2554 52415 DAD SL3
017596,000456: 22,2555 00003 2
017597,000457: 22,2556 77604 BOVB
017598,000458: 22,2557 45707 SIGNMPAC
017599,000459: 22,2560 17436 STODL DEL +8D # UY UY(1-COS(A)) +COS(A) $1
017600,000460: 22,2561 03347 COF +4
017601,000461: 22,2562 41316 DSQ DMP
017602,000462: 22,2563 00005 4
017603,000463: 22,2564 52415 DAD SL3
017604,000464: 22,2565 00003 2
017605,000465: 22,2566 77604 BOVB
017606,000466: 22,2567 45707 SIGNMPAC
017607,000467: 22,2570 03446 STORE DEL +16D # UZ UZ(1-COS(A)) +COS(A) $1
017608,000468:
017609,000469: # COMPUTE THE OFF DIAGONAL TERMS OF DEL
017610,000470:
017611,000471: 22,2571 41345 DLOAD DMP
017612,000472: 22,2572 03343 COF
017613,000473: 22,2573 03345 COF +2
017614,000474: 22,2574 72405 DMP SL1
017615,000475: 22,2575 00005 4
017616,000476: 22,2576 41325 PDDL DMP # D6 UX UY (1-COS A) $ 4
017617,000477: 22,2577 03347 COF +4
017618,000478: 22,2600 00001 0
017619,000479: 22,2601 43206 PUSH DAD # D8 UZ SIN A $ 4
017620,000480: 22,2602 00007 6
017621,000481: 22,2603 41112 SL2 BOVB
017622,000482: 22,2604 45707 SIGNMPAC
017623,000483: 22,2605 17434 STODL DEL +6
017624,000484: 22,2606 62421 BDSU SL2
017625,000485: 22,2607 77604 BOVB
017626,000486: 22,2610 45707 SIGNMPAC
017627,000487: 22,2611 17430 STODL DEL +2
017628,000488: 22,2612 03343 COF
017629,000489: 22,2613 41205 DMP DMP
017630,000490: 22,2614 03347 COF +4
017631,000491: 22,2615 00005 4
017632,000492: 22,2616 65352 SL1 PDDL # D6 UX UZ (1-COS A ) $ 4
017633,000493: 22,2617 03345 COF +2
017634,000494: 22,2620 41405 DMP PUSH # D8 UY SIN(A)
017635,000495: 22,2621 00001 0
017636,000496: 22,2622 62415 DAD SL2
017637,000497: 22,2623 00007 6
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Page 400 |
017639,000499: 22,2624 77604 BOVB
017640,000500: 22,2625 45707 SIGNMPAC
017641,000501: 22,2626 17432 STODL DEL +4 # UX UZ (1-COS(A))+UY SIN(A)
017642,000502: 22,2627 62421 BDSU SL2
017643,000503: 22,2630 77604 BOVB
017644,000504: 22,2631 45707 SIGNMPAC
017645,000505: 22,2632 17442 STODL DEL +12D # UX UZ (U-COS(A))-UY SIN(A)
017646,000506: 22,2633 03345 COF +2
017647,000507: 22,2634 41205 DMP DMP
017648,000508: 22,2635 03347 COF +4
017649,000509: 22,2636 00005 4
017650,000510: 22,2637 65352 SL1 PDDL # D6 UY UZ (1-COS(A)) $ 4
017651,000511: 22,2640 03343 COF
017652,000512: 22,2641 41405 DMP PUSH # D8 UX SIN(A)
017653,000513: 22,2642 00001 0
017654,000514: 22,2643 62415 DAD SL2
017655,000515: 22,2644 00007 6
017656,000516: 22,2645 77604 BOVB
017657,000517: 22,2646 45707 SIGNMPAC
017658,000518: 22,2647 17444 STODL DEL +14D # UY UZ(1-COS(A)) +UX SIN(A)
017659,000519: 22,2650 62421 BDSU SL2
017660,000520: 22,2651 77604 BOVB
017661,000521: 22,2652 45707 SIGNMPAC
017662,000522: 22,2653 03440 STORE DEL +10D # UY UZ (1-COS(A)) -UX SIN(A)
017663,000523: 22,2654 77616 RVQ
017664,000524:
017665,000525:
017666,000526: # DIRECTION COSINE MATRIX TO CDU ANGLE ROUTINE
017667,000527: # X1 CONTAINS THE COMPLEMENT OF THE STARTING ADDRESS FOR MATRIX (SCALED 2)
017668,000528: # LEAVES CDU ANGLES SCALED 2PI IN V(MPAC)
017669,000529: # COS(MGA) WILL BE LEFT IN S1 (SCALED 1)
017670,000530:
017671,000531: # THE DIRECTION COSINE MATRIX RELATING S/C AXES TO STABLE MEMBER AXES CAN BE WRITTEN AS***
017672,000532:
017673,000533: # C =COS(THETA)COS(PSI)
017674,000534: # 0
017675,000535: # C =-COS(THETA)SIN(PSI)COS(PHI)+SI (THETA)SIN(PHI)
017676,000536: # 1
017677,000537: # C =COS(THETA)SIN(PSI)SIN(PHI) + S N(THETA)COS(PHI)
017678,000538: # 2
017679,000539: # C =SIN(PSI)
017680,000540: # 3
017681,000541: # C =COS(PSI)COS(PHI)
017682,000542: # 4
017683,000543: # C =-COS(PSI)SIN(PHI)
017684,000544: # 5
017685,000545: # C =-SIN(THETA)COS(PSI)
017686,000546: # 6
017687,000547: # C =SIN(THETA)SIN(PSI)COS(PHI)+COS THETA)SIN(PHI)
017688,000548: # 7
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Page 401 |
017690,000550: # C =-SIN(THETA)SIN(PSI)SIN(PHI)+CO (THETA)COS(PHI)
017691,000551: # 8
017692,000552:
017693,000553: # WHERE PHI = OGA
017694,000554: # THETA = IGA
017695,000555: # PSI = MGA
017696,000556:
017697,000557: 22,2655 67543 DCMTOCDU DLOAD* ARCSIN
017698,000558: 22,2656 00007 6,1
017699,000559: 22,2657 71406 PUSH COS # PD +0 PSI
017700,000560: 22,2660 41152 SL1 BOVB
017701,000561: 22,2661 45707 SIGNMPAC
017702,000562: 22,2662 00051 STORE S1
017703,000563: 22,2663 57543 DLOAD* DCOMP
017704,000564: 22,2664 00015 12D,1
017705,000565: 22,2665 67471 DDV ARCSIN
017706,000566: 22,2666 00051 S1
017707,000567: 22,2667 51123 PDDL* BPL # PD +2 THETA
017708,000568: 22,2670 00001 0,1 # MUST CHECK THE SIGN OF COS(THETA)
017709,000569: 22,2671 44703 OKTHETA # TO DETERMINE THE PROPER QUADRANT
017710,000570: 22,2672 57545 DLOAD DCOMP
017711,000571: 22,2673 43244 BPL DAD
017712,000572: 22,2674 44700 SUHALFA
017713,000573: 22,2675 15330 DPHALF
017714,000574: 22,2676 77650 GOTO
017715,000575: 22,2677 44702 CALCPHI
017716,000576: 22,2700 77625 SUHALFA DSU
017717,000577: 22,2701 15330 DPHALF
017718,000578: 22,2702 77606 CALCPHI PUSH
017719,000579: 22,2703 57543 OKTHETA DLOAD* DCOMP
017720,000580: 22,2704 00013 10D,1
017721,000581: 22,2705 67471 DDV ARCSIN
017722,000582: 22,2706 00051 S1
017723,000583: 22,2707 51123 PDDL* BPL # PUSH DOWN PHI
017724,000584: 22,2710 00011 8D,1
017725,000585: 22,2711 44723 OKPHI
017726,000586: 22,2712 57545 DLOAD DCOMP # PUSH UP PHI
017727,000587: 22,2713 43244 BPL DAD
017728,000588: 22,2714 44720 SUHALFAP
017729,000589: 22,2715 15330 DPHALF
017730,000590: 22,2716 77650 GOTO
017731,000591: 22,2717 44724 VECOFANG
017732,000592: 22,2720 52025 SUHALFAP DSU GOTO
017733,000593: 22,2721 15330 DPHALF
017734,000594: 22,2722 44724 VECOFANG
017735,000595: 22,2723 77745 OKPHI DLOAD # PUSH UP PHI
017736,000596: 22,2724 43466 VECOFANG VDEF RVQ
017737,000597:
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Page 402 |
017739,000599: # ROUTINE FOR TERMINATING AUTOMATIC MANEUVERS
017740,000600:
017741,000601: 22,2725 00004 NOGOM2 INHINT # THIS LOCATION ACCESSED BY A BZMF NOGO -2
017742,000602: 22,2726 03272 TC ZEROEROR
017743,000603:
017744,000604: 22,2727 00004 NOGO INHINT
017745,000605: 22,2730 03245 TC STOPRATE
017746,000606:
017747,000607: # TERMINATE MANEUVER
017748,000608: 22,2731 34711 CAF TWO # NOTE - ALL RETURNS ARE NOW MADE VIA
017749,000609: 22,2732 05140 TC WAITLIST # GOODEND
017750,000610: 22,2733 E6,1661 EBANK= BCDU
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2016-08-14 RSB Added SBANK for addressing discrepancies. |
017752,000612: 22,2733 40,2000 SBANK= PINSUPER
017753,000613: 22,2733 03237 44106 2CADR ENDMANU
017754,000614: 22,2735 15112 TCF ENDOFJOB
End of include-file ANGLFIND.agc. Parent file is MAIN.agc