ASSEMBLY LISTING OF SEGMENT >spec>install>1110>principal_angle_.alm ASSEMBLED ON: 11/11/89 0941.1 mst Sat OPTIONS USED: -target l68 list symbols ASSEMBLED BY: ALM Version 8.14 March 1989 ASSEMBLER CREATED: 06/09/89 1002.3 mst Fri 1 " *********************************************************** 2 " * * 3 " * Copyright, (C) Honeywell Bull Inc., 1987 * 4 " * * 5 " * Copyright, (C) Honeywell Information Systems Inc., 1985 * 6 " * * 7 " *********************************************************** 000000 8 name principal_angle_ 9 " Modification history: 10 " Written by H. Hoover, M. Mabey, and B. Wong, April 1985. 11 " 12 " Function: Scale an angle into the range -pi/4 to pi/4. 13 " 14 " Entry: through the appropriately named entry point with: 15 " EAQ = input angle to be scaled. 16 " X0 = the return address. 17 " X2 = a two word HFP offset. This register is by all of the 18 " floating point math routines for the same purpose. 19 " PR2 = points to an even word aligned, 12 word long, scratch area. 20 " 21 " Exit: EAQ = the scaled angle. 22 " X1 = mod ((input EAQ)/HALF_PI + 0.5), 4) 23 " 24 " Uses: X1 25 " X1 = used to return mod ((input EAQ)/HALF_PI + 0.5), 4) 26 000043 27 segdef principal_degrees_,principal_radians_ 28 000000 29 segref math_constants_,almost_one 30 002100 31 bool P2.0H,002100 " yields HFP +2.0 under 'du' modification 004132 32 bool P45.0H,004132 " yields HFP +45.0 under 'du' modification 33 000000 34 equ angle,0 000000 35 equ temp,angle 000002 36 equ n1,2 000003 37 equ n2,3 000004 38 equ t1,4 000006 39 equ t2,6 000010 40 equ t3,8 000012 41 equ t4,10 000002 42 equ HFP,2 43 000000 44 principal_degrees_: 000000 aa 000002 1020 03 45 cmpx2 HFP,du 000001 0a 000022 6000 00 46 tze hfp_principal_degrees 47 000002 48 bfp_principal_degrees: 000002 aa 000000 4710 00 49 frd 0 000003 0a 000236 4250 00 50 fcmg two_pwr_54 " is the EAQ too large 000004 0a 000210 6054 00 51 tpnz angle_too_big " Yup. 52 000005 aa 2 00000 4551 00 53 fst pr2|angle 000006 0a 000220 5670 00 54 dfdv ninety " EAQ = EAQ/90 000007 aa 000400 4750 03 55 fad =0.5,du " EAQ = EAQ/90 + 0.5 000010 4a 4 00010 4371 20 56 dufa almost_one 000011 4a 4 00010 5371 20 57 dufs almost_one 000012 aa 216000 4350 03 58 ufa =71b25,du " AQ = EAQ/90 + 0.5 in integer form 59 000013 aa 000000 6210 06 60 eax1 0,ql 000014 aa 000003 3610 03 61 anx1 3,du " X1 = mod(AQ,4) 62 000015 aa 400000 4750 03 63 fad =0.0,du " EAQ = floor(EAQ/90 + 0.5) in floating point form 000016 aa 016550 4610 03 64 fmp =90.0,du " EAQ = floor(EAQ/90 + 0.5)*90 000017 aa 000000 5130 00 65 fneg 0 " EAQ = -floor(EAQ/90 + 0.5)*90 000020 aa 2 00000 4751 00 66 fad pr2|angle " EAQ = angle-floor(EAQ/90 + 0.5)*90 000021 aa 000000 7100 10 67 tra 0,x0 " return to caller 68 000022 69 hfp_principal_degrees: 000022 aa 000000 4710 00 70 frd 0 000023 0a 000234 4250 00 71 fcmg hfp_two_pwr_48 " is the EAQ too large 000024 0a 000210 6050 00 72 tpl angle_too_big " Yup. 73 000025 aa 2 00000 4551 00 74 fst pr2|angle 000026 0a 000222 5670 00 75 dfdv hfp_ninety " EAQ = EAQ/90 000027 aa 000400 4750 03 76 fad =0.5,du " EAQ = EAQ/90 + 0.5 000030 4a 4 00010 4371 20 77 dufa almost_one 000031 4a 4 00010 5371 20 78 dufs almost_one 000032 aa 002100 4210 03 79 ufm P2.0H,du 000033 aa 044000 4350 03 80 ufa =18b25,du " AQ = EAQ/90 + 0.5 in integer form 81 000034 aa 000000 6210 06 82 eax1 0,ql 000035 aa 000003 3610 03 83 anx1 =3,du " X1 = mod(AQ,4) 84 000036 aa 400000 4750 03 85 fad =0.0,du " EAQ = floor(EAQ/90 + 0.5)*2 000037 aa 004132 4610 03 86 fmp P45.0H,du " EAQ = floor(EAQ/90 + 0.5)*90 in floating point form 000040 aa 000000 5130 00 87 fneg 0 " EAQ = -floor(EAQ/90 + 0.5)*90 000041 aa 2 00000 4751 00 88 fad pr2|angle " EAQ = angle-floor(EAQ/90 + 0.5)*90 000042 aa 000000 7100 10 89 tra 0,x0 " return to caller 90 91 000043 92 principal_radians_: 000043 aa 000002 1020 03 93 cmpx2 HFP,du 000044 0a 000063 6000 00 94 tze hfp_principal_radians 95 000045 96 bfp_principal_radians: 000045 aa 000000 4710 00 97 frd 0 000046 aa 2 00000 4551 00 98 fst pr2|angle 000047 0a 000232 4250 00 99 fcmg two_pwr_27 " is the EAQ too large 000050 0a 000135 6054 00 100 tpnz bfp_big_angle " Yup. 101 000051 0a 000224 4630 00 102 dfmp one_over_half_pi " EAQ = EAQ/half_pi 000052 aa 000400 4750 03 103 fad =0.5,du " EAQ = EAQ/half_pi + 0.5 000053 4a 4 00010 4371 20 104 dufa almost_one 000054 4a 4 00010 5371 20 105 dufs almost_one 000055 aa 216000 4350 03 106 ufa =71b25,du " AQ = EAQ/half_pi + 0.5 in integer form 107 000056 aa 000000 6210 06 108 eax1 0,ql 000057 aa 000003 3610 03 109 anx1 3,du " X1 = mod(AQ,4) 110 000060 aa 400000 4750 03 111 fad =0.0,du " EAQ = floor(EAQ/half_pi + 0.5) in floating point form 000061 aa 2 00002 4551 00 112 fst pr2|n1 " n1 = EAQ 000062 0a 000102 7100 00 113 tra small_angle_join 114 000063 115 hfp_principal_radians: 000063 aa 000000 4710 00 116 frd 0 000064 aa 2 00000 4551 00 117 fst pr2|angle 000065 0a 000230 4250 00 118 fcmg hfp_two_pwr_24 " is the EAQ too large 000066 0a 000117 6054 00 119 tpnz hfp_big_angle " Yup. 120 000067 0a 000224 4630 12 121 dfmp one_over_half_pi,x2 " EAQ = EAQ/half_pi 000070 aa 000400 4750 03 122 fad =0.5,du " EAQ = EAQ/half_pi + 0.5 000071 4a 4 00010 4371 20 123 dufa almost_one 000072 4a 4 00010 5371 20 124 dufs almost_one 000073 aa 002100 4210 03 125 ufm P2.0H,du 000074 aa 044000 4350 03 126 ufa =18b25,du " AQ = EAQ/half_pi + 0.5 in integer form in integer form 127 000075 aa 000000 6210 06 128 eax1 0,ql 000076 aa 000003 3610 03 129 anx1 =3,du " X1 = mod(AQ,4) 130 000077 aa 400000 4750 03 131 fad =0.0,du 000100 aa 000400 4610 03 132 fmp =0.5,du " EAQ = floor(EAQ/half_pi + 0.5) in floating point form 000101 aa 2 00002 4551 00 133 fst pr2|n1 " n1 = EAQ 134 000102 135 small_angle_join: 000102 0a 000240 4610 12 136 fmp half_pi1,x2 000103 aa 2 00004 4571 00 137 dfst pr2|t1 " t1 = n1*half_pi1 138 000104 aa 2 00002 4311 00 139 fld pr2|n1 000105 0a 000244 4610 12 140 fmp half_pi2,x2 000106 aa 2 00006 4571 00 141 dfst pr2|t2 " t2 = n1*half_pi2 142 000107 aa 2 00002 4311 00 143 fld pr2|n1 000110 0a 000250 4610 12 144 fmp half_pi3,x2 000111 aa 2 00010 4571 00 145 dfst pr2|t3 " t3 = n1*half_pi3 146 000112 aa 2 00000 4311 00 147 fld pr2|angle " answer = angle - t1 - t2 - t3 000113 aa 2 00004 5771 00 148 dfsb pr2|t1 000114 aa 2 00006 5771 00 149 dfsb pr2|t2 000115 aa 2 00010 5771 00 150 dfsb pr2|t3 000116 aa 000000 7100 10 151 tra 0,x0 152 000117 153 hfp_big_angle: 000117 0a 000234 4250 00 154 fcmg hfp_two_pwr_48 " is the EAQ too large? 000120 0a 000210 6054 00 155 tpnz angle_too_big " Yup. 156 000121 0a 000224 4630 12 157 dfmp one_over_half_pi,x2 " EAQ = EAQ/half_pi 000122 aa 000400 4750 03 158 fad =0.5,du " EAQ = EAQ/half_pi + 0.5 000123 4a 4 00010 4371 20 159 dufa almost_one 000124 4a 4 00010 5371 20 160 dufs almost_one 000125 aa 002100 4210 03 161 ufm P2.0H,du 000126 aa 044000 4350 03 162 ufa =18b25,du " AQ = EAQ/half_pi + 0.5 in integer form in integer form 163 000127 aa 000000 6210 06 164 eax1 0,ql 000130 aa 000003 3610 03 165 anx1 =3,du " X1 = mod(AQ,4) 166 000131 aa 400000 4750 03 167 fad =0.0,du " EAQ = floor(EAQ/half_pi + 0.5)*2 000132 aa 000400 4610 03 168 fmp =0.5,du " EAQ = floor(EAQ/half_pi + 0.5) in floating point form 000133 aa 2 00002 4551 00 169 fst pr2|n1 " n1 = EAQ 000134 0a 000150 7100 00 170 tra big_angle_join 171 172 000135 173 bfp_big_angle: 000135 0a 000236 4250 00 174 fcmg two_pwr_54 " is the EAQ too large? 000136 0a 000210 6054 00 175 tpnz angle_too_big " Yup. 176 000137 0a 000224 4630 00 177 dfmp one_over_half_pi " EAQ = EAQ/half_pi 000140 aa 000400 4750 03 178 fad =0.5,du " EAQ = EAQ/half_pi + 0.5 000141 4a 4 00010 4371 20 179 dufa almost_one 000142 4a 4 00010 5371 20 180 dufs almost_one 000143 aa 216000 4350 03 181 ufa =71b25,du " AQ = EAQ/half_pi + 0.5 in integer form 182 000144 aa 000000 6210 06 183 eax1 0,ql 000145 aa 000003 3610 03 184 anx1 =3,du " X1 = mod(AQ,4) 185 000146 aa 400000 4750 03 186 fad =0.0,du " EAQ = floor(EAQ/half_pi + 0.5) in floating point form 000147 aa 2 00002 4551 00 187 fst pr2|n1 " n1 = EAQ 188 000150 189 big_angle_join: 000150 aa 2 00002 5751 00 190 fsb pr2|n1 000151 aa 2 00003 4551 00 191 fst pr2|n2 " n2 = n - n1 192 000152 aa 2 00002 4311 00 193 fld pr2|n1 000153 0a 000240 4610 12 194 fmp half_pi1,x2 000154 aa 2 00004 4571 00 195 dfst pr2|t1 " t1 = n1*half_pi1 196 000155 aa 2 00002 4311 00 197 fld pr2|n1 " calculate n1*half_pi2 + n2*half_pi1 000156 0a 000244 4610 12 198 fmp half_pi2,x2 000157 aa 2 00006 4571 00 199 dfst pr2|t2 000160 aa 2 00003 4311 00 200 fld pr2|n2 000161 0a 000240 4610 12 201 fmp half_pi1,x2 000162 aa 2 00006 4771 00 202 dfad pr2|t2 000163 aa 2 00006 4571 00 203 dfst pr2|t2 " t2 = (n1*half_pi2 + n2*half_pi1) 204 000164 aa 2 00002 4311 00 205 fld pr2|n1 " calculate n1*half_pi3 + n2*half_pi2 000165 0a 000250 4610 12 206 fmp half_pi3,x2 000166 aa 2 00010 4571 00 207 dfst pr2|t3 000167 aa 2 00003 4311 00 208 fld pr2|n2 000170 0a 000244 4610 12 209 fmp half_pi2,x2 000171 aa 2 00010 4771 00 210 dfad pr2|t3 000172 aa 2 00010 4571 00 211 dfst pr2|t3 " t3 = (n1*half_pi3 + n2*half_pi2) 212 000173 aa 2 00002 4311 00 213 fld pr2|n1 " calculate n1*half_pi4 + n2*half_pi3 000174 0a 000254 4610 12 214 fmp half_pi4,x2 000175 aa 2 00012 4571 00 215 dfst pr2|t4 000176 aa 2 00003 4311 00 216 fld pr2|n2 000177 0a 000250 4610 12 217 fmp half_pi3,x2 000200 aa 2 00012 4771 00 218 dfad pr2|t4 000201 aa 2 00012 4571 00 219 dfst pr2|t4 " t4 = (n1*half_pi4 + n2*half_pi3) 220 000202 aa 2 00000 4311 00 221 fld pr2|angle " answer = angle - t1 - t2 - t3 000203 aa 2 00004 5771 00 222 dfsb pr2|t1 000204 aa 2 00006 5771 00 223 dfsb pr2|t2 000205 aa 2 00010 5771 00 224 dfsb pr2|t3 000206 aa 2 00012 5771 00 225 dfsb pr2|t4 226 000207 aa 000000 7100 10 227 tra 0,x0 " return to caller 228 000210 229 angle_too_big: 000210 0a 000260 2360 12 230 ldq code,x2 " pick the appropriate error message 000211 aa 2 00000 7401 00 231 stx0 pr2|temp " save X0 000212 4a 4 00012 7001 20 232 tsx0 |[call_math_error_] 000213 aa 2 00000 2201 00 233 ldx0 pr2|temp " restore X0 234 000214 aa 000000 6210 00 235 eax1 0 " X1 = 0 000215 aa 400000 4310 03 236 fld =0.0,du " EAQ = 0, set indicators 000216 aa 000000 7100 10 237 tra 0,x0 " return to caller 238 239 240 " Constants: 241 000217 aa 000000 0110 03 242 even 000220 aa 016550 000000 243 ninety: dec 90.0d0 000221 aa 000000 000000 000222 244 hfp_ninety: 000222 aa 004264 000000 245 oct 004264000000,000000000000 000223 aa 000000 000000 000224 246 one_over_half_pi: 000224 aa 000505 746033 247 dec 6.3661977236758134307553d-1 000225 aa 344710 405225 000226 aa 000505 746033 248 oct 000505746033,344710405225 000227 aa 344710 405225 000230 249 hfp_two_pwr_24: 000230 aa 016040 000000 250 oct 016040000000,000000000000 000231 aa 000000 000000 000232 251 two_pwr_27: 000232 aa 070400 000000 252 oct 070400000000,000000000000 000233 aa 000000 000000 000234 253 hfp_two_pwr_48: 000234 aa 032040 000000 254 oct 032040000000,000000000000 000235 aa 000000 000000 000236 255 two_pwr_54: 000236 aa 156400 000000 256 oct 156400000000,000000000000 000237 aa 000000 000000 000240 aa 002622 077325 257 half_pi1: oct 002622077325,000000000000 000241 aa 000000 000000 000242 aa 002062 207732 258 oct 002062207732,000000000000 000243 aa 000000 000000 000244 aa 706420 550604 259 half_pi2: oct 706420550604,000000000000 000245 aa 000000 000000 000246 aa 766050 420550 260 oct 766050420550,000000000000 000247 aa 000000 000000 000250 aa 616646 114314 261 half_pi3: oct 616646114314,000000000000 000251 aa 000000 000000 000252 aa 752060 432304 262 oct 752060432304,000000000000 000253 aa 000000 000000 000254 aa 526505 600670 263 half_pi4: oct 526505600670,000000000000 000255 aa 000000 000000 000256 aa 736061 461213 264 oct 736061461213,000000000000 000257 aa 000000 000000 000260 aa 000000 000106 265 code: dec 70,0,71 000261 aa 000000 000000 000262 aa 000000 000107 266 end NO LITERALS NAME DEFINITIONS FOR ENTRY POINTS AND SEGDEFS 000264 5a 000003 000000 000265 5a 000042 600000 000266 aa 000000 000000 000267 55 000013 000002 000270 5a 000002 400003 000271 55 000006 000013 000272 aa 020 160 162 151 000273 aa 156 143 151 160 000274 aa 141 154 137 141 000275 aa 156 147 154 145 000276 aa 137 000 000 000 000277 55 000023 000003 000300 0a 000043 400000 000301 55 000016 000003 000302 aa 022 160 162 151 principal_radians_ 000303 aa 156 143 151 160 000304 aa 141 154 137 162 000305 aa 141 144 151 141 000306 aa 156 163 137 000 000307 55 000033 000013 000310 0a 000000 400000 000311 55 000026 000003 000312 aa 022 160 162 151 principal_degrees_ 000313 aa 156 143 151 160 000314 aa 141 154 137 144 000315 aa 145 147 162 145 000316 aa 145 163 137 000 000317 55 000002 000023 000320 6a 000000 400002 000321 55 000036 000003 000322 aa 014 163 171 155 symbol_table 000323 aa 142 157 154 137 000324 aa 164 141 142 154 000325 aa 145 000 000 000 DEFINITIONS HASH TABLE 000326 aa 000000 000015 000327 aa 000000 000000 000330 aa 000000 000000 000331 aa 000000 000000 000332 aa 000000 000000 000333 aa 000000 000000 000334 5a 000013 000000 000335 5a 000023 000000 000336 5a 000033 000000 000337 aa 000000 000000 000340 aa 000000 000000 000341 aa 000000 000000 000342 aa 000000 000000 000343 aa 000000 000000 EXTERNAL NAMES 000344 aa 020 143 141 154 call_math_error_ 000345 aa 154 137 155 141 000346 aa 164 150 137 145 000347 aa 162 162 157 162 000350 aa 137 000 000 000 000351 aa 012 141 154 155 almost_one 000352 aa 157 163 164 137 000353 aa 157 156 145 000 000354 aa 017 155 141 164 math_constants_ 000355 aa 150 137 143 157 000356 aa 156 163 164 141 000357 aa 156 164 163 137 NO TRAP POINTER WORDS TYPE PAIR BLOCKS 000360 aa 000004 000000 000361 55 000060 000060 000362 aa 000004 000000 000363 55 000070 000065 000364 aa 000001 000000 000365 aa 000000 000000 INTERNAL EXPRESSION WORDS 000366 5a 000074 000000 000367 5a 000076 000000 LINKAGE INFORMATION 000000 aa 000000 000000 000001 0a 000264 000000 000002 aa 000000 000000 000003 aa 000000 000000 000004 aa 000000 000000 000005 aa 000000 000000 000006 22 000010 000014 000007 a2 000000 000000 000010 9a 777770 0000 46 math_constants_|almost_one 000011 5a 000103 0000 00 000012 9a 777766 0000 46 call_math_error_|call_math_error_ 000013 5a 000102 0000 00 SYMBOL INFORMATION SYMBOL TABLE HEADER 000000 aa 000000 000001 000001 aa 163171 155142 000002 aa 164162 145145 000003 aa 000000 000010 000004 aa 000000 117244 000005 aa 361023 525721 000006 aa 000000 117547 000007 aa 251557 236472 000010 aa 141154 155040 000011 aa 040040 040040 000012 aa 000024 000040 000013 aa 000034 000040 000014 aa 000044 000100 000015 aa 000002 000002 000016 aa 000064 000000 000017 aa 000000 000152 000020 aa 000000 000104 000021 aa 000132 000126 000022 aa 000144 000104 000023 aa 000064 000000 000024 aa 101114 115040 000025 aa 126145 162163 000026 aa 151157 156040 000027 aa 070056 061064 000030 aa 040115 141162 000031 aa 143150 040061 000032 aa 071070 071040 000033 aa 040040 040040 000034 aa 110151 162156 000035 aa 145151 163145 000036 aa 156056 123171 000037 aa 163115 141151 000040 aa 156164 056141 000041 aa 040040 040040 000042 aa 040040 040040 000043 aa 040040 040040 000044 aa 055164 141162 000045 aa 147145 164040 000046 aa 154066 070040 000047 aa 040040 040040 000050 aa 040040 040040 000051 aa 040040 040040 000052 aa 040040 040040 000053 aa 040040 040040 000054 aa 040040 040040 000055 aa 040040 040040 000056 aa 040154 151163 000057 aa 164040 163171 000060 aa 155142 157154 000061 aa 163040 040040 000062 aa 040040 040040 000063 aa 040040 040040 000064 aa 000000 000001 000065 aa 000000 000001 000066 aa 000072 000047 000067 aa 175453 020042 000070 aa 000000 117547 000071 aa 177023 400000 000072 aa 076163 160145 >spec>install>1110>principal_angle_.alm 000073 aa 143076 151156 000074 aa 163164 141154 000075 aa 154076 061061 000076 aa 061060 076160 000077 aa 162151 156143 000100 aa 151160 141154 000101 aa 137141 156147 000102 aa 154145 137056 000103 aa 141154 155040 MULTICS ASSEMBLY CROSS REFERENCE LISTING Value Symbol Source file Line number almost_one principal_angle_: 29, 56, 57, 77, 78, 104, 105, 123, 124, 159, 160, 179, 180. 0 angle principal_angle_: 34, 35, 53, 66, 74, 88, 98, 117, 147, 221. 210 angle_too_big principal_angle_: 51, 72, 155, 175, 229. 135 bfp_big_angle principal_angle_: 100, 173. 2 bfp_principal_degrees principal_angle_: 48. 45 bfp_principal_radians principal_angle_: 96. 150 big_angle_join principal_angle_: 170, 189. call_math_error_ principal_angle_: 232. 260 code principal_angle_: 230, 265. 240 half_pi1 principal_angle_: 136, 194, 201, 257. 244 half_pi2 principal_angle_: 140, 198, 209, 259. 250 half_pi3 principal_angle_: 144, 206, 217, 261. 254 half_pi4 principal_angle_: 214, 263. 2 HFP principal_angle_: 42, 45, 93. 117 hfp_big_angle principal_angle_: 119, 153. 222 hfp_ninety principal_angle_: 75, 244. 22 hfp_principal_degrees principal_angle_: 46, 69. 63 hfp_principal_radians principal_angle_: 94, 115. 230 hfp_two_pwr_24 principal_angle_: 118, 249. 234 hfp_two_pwr_48 principal_angle_: 71, 154, 253. math_constants_ principal_angle_: 29. 2 n1 principal_angle_: 36, 112, 133, 139, 143, 169, 187, 190, 193, 197, 205, 213. 3 n2 principal_angle_: 37, 191, 200, 208, 216. 220 ninety principal_angle_: 54, 243. 224 one_over_half_pi principal_angle_: 102, 121, 157, 177, 246. 2100 P2.0H principal_angle_: 31, 79, 125, 161. 4132 P45.0H principal_angle_: 32, 86. 0 principal_degrees_ principal_angle_: 27, 44. 43 principal_radians_ principal_angle_: 27, 92. 102 small_angle_join principal_angle_: 113, 135. 4 t1 principal_angle_: 38, 137, 148, 195, 222. 6 t2 principal_angle_: 39, 141, 149, 199, 202, 203, 223. 10 t3 principal_angle_: 40, 145, 150, 207, 210, 211, 224. 12 t4 principal_angle_: 41, 215, 218, 219, 225. 0 temp principal_angle_: 35, 231, 233. 232 two_pwr_27 principal_angle_: 99, 251. 236 two_pwr_54 principal_angle_: 50, 174, 255. NO FATAL ERRORS ----------------------------------------------------------- Historical Background This edition of the Multics software materials and documentation is provided and donated to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. as a contribution to computer science knowledge. This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology, Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL and BULL HN Information Systems Inc. to the development of this operating system. Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970), renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture for managing computer hardware properly and for executing programs. Many subsequent operating systems incorporated Multics principles. Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. . ----------------------------------------------------------- Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without fee is hereby granted,provided that the below copyright notice and historical background appear in all copies and that both the copyright notice and historical background and this permission notice appear in supporting documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining to distribution of the programs without specific prior written permission. Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc. Copyright 2006 by BULL HN Information Systems Inc. Copyright 2006 by Bull SAS All Rights Reserved