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1.1 ! root 1: # C runtime startoff ! 2: # sccs id @(#)crt0.s 34.1 10/3/80 ! 3: ! 4: .set exit,1 ! 5: .globl _exit ! 6: .globl start ! 7: .globl _main ! 8: .globl _environ ! 9: .globl _xports ! 10: .globl _gstart ! 11: .globl _proflush ! 12: .globl _holbeg ! 13: .globl _holend ! 14: .globl Fixzero ! 15: ! 16: ! 17: # ! 18: # C language startup routine ! 19: # ! 20: # special 512 byte area for nil (and possibly other atoms) ! 21: # and special block of smallnums. ! 22: # ! 23: .long 0 ! 24: .long 0 ! 25: .long 0 ! 26: .long -4 ! 27: .long 20 ! 28: .byte 'n,'i,'l,0 ! 29: .long 0 ! 30: .long 0 ! 31: .long -4 ! 32: .long 40 ! 33: .byte 'e,'o,'f,0 ! 34: .space 512-44 ! 35: _xports: ! 36: .long __iob+0 ! 37: .long __iob+16 ! 38: .long __iob+32 ! 39: .long __iob+48 ! 40: .long __iob+64 ! 41: .long __iob+80 ! 42: .long __iob+96 ! 43: .long __iob+112 ! 44: .long __iob+128 ! 45: .long __iob+144 ! 46: .long __iob+160 ! 47: .long __iob+176 ! 48: .long __iob+192 ! 49: .long __iob+208 ! 50: .long __iob+224 ! 51: .long __iob+240 ! 52: .long __iob+256 ! 53: .long __iob+272 ! 54: .long __iob+288 ! 55: .long __iob+304 ! 56: .space 512 - (20 * 4) ! 57: .long -1024,-1023,-1022,-1021,-1020,-1019,-1018,-1017 ! 58: .long -1016,-1015,-1014,-1013,-1012,-1011,-1010,-1009 ! 59: .long -1008,-1007,-1006,-1005,-1004,-1003,-1002,-1001 ! 60: .long -1000,-999,-998,-997,-996,-995,-994,-993 ! 61: .long -992,-991,-990,-989,-988,-987,-986,-985 ! 62: .long -984,-983,-982,-981,-980,-979,-978,-977 ! 63: .long -976,-975,-974,-973,-972,-971,-970,-969 ! 64: .long -968,-967,-966,-965,-964,-963,-962,-961 ! 65: .long -960,-959,-958,-957,-956,-955,-954,-953 ! 66: .long -952,-951,-950,-949,-948,-947,-946,-945 ! 67: .long -944,-943,-942,-941,-940,-939,-938,-937 ! 68: .long -936,-935,-934,-933,-932,-931,-930,-929 ! 69: .long -928,-927,-926,-925,-924,-923,-922,-921 ! 70: .long -920,-919,-918,-917,-916,-915,-914,-913 ! 71: .long -912,-911,-910,-909,-908,-907,-906,-905 ! 72: .long -904,-903,-902,-901,-900,-899,-898,-897 ! 73: .long -896,-895,-894,-893,-892,-891,-890,-889 ! 74: .long -888,-887,-886,-885,-884,-883,-882,-881 ! 75: .long -880,-879,-878,-877,-876,-875,-874,-873 ! 76: .long -872,-871,-870,-869,-868,-867,-866,-865 ! 77: .long -864,-863,-862,-861,-860,-859,-858,-857 ! 78: .long -856,-855,-854,-853,-852,-851,-850,-849 ! 79: .long -848,-847,-846,-845,-844,-843,-842,-841 ! 80: .long -840,-839,-838,-837,-836,-835,-834,-833 ! 81: .long -832,-831,-830,-829,-828,-827,-826,-825 ! 82: .long -824,-823,-822,-821,-820,-819,-818,-817 ! 83: .long -816,-815,-814,-813,-812,-811,-810,-809 ! 84: .long -808,-807,-806,-805,-804,-803,-802,-801 ! 85: .long -800,-799,-798,-797,-796,-795,-794,-793 ! 86: .long -792,-791,-790,-789,-788,-787,-786,-785 ! 87: .long -784,-783,-782,-781,-780,-779,-778,-777 ! 88: .long -776,-775,-774,-773,-772,-771,-770,-769 ! 89: .long -768,-767,-766,-765,-764,-763,-762,-761 ! 90: .long -760,-759,-758,-757,-756,-755,-754,-753 ! 91: .long -752,-751,-750,-749,-748,-747,-746,-745 ! 92: .long -744,-743,-742,-741,-740,-739,-738,-737 ! 93: .long -736,-735,-734,-733,-732,-731,-730,-729 ! 94: .long -728,-727,-726,-725,-724,-723,-722,-721 ! 95: .long -720,-719,-718,-717,-716,-715,-714,-713 ! 96: .long -712,-711,-710,-709,-708,-707,-706,-705 ! 97: .long -704,-703,-702,-701,-700,-699,-698,-697 ! 98: .long -696,-695,-694,-693,-692,-691,-690,-689 ! 99: .long -688,-687,-686,-685,-684,-683,-682,-681 ! 100: .long -680,-679,-678,-677,-676,-675,-674,-673 ! 101: .long -672,-671,-670,-669,-668,-667,-666,-665 ! 102: .long -664,-663,-662,-661,-660,-659,-658,-657 ! 103: .long -656,-655,-654,-653,-652,-651,-650,-649 ! 104: .long -648,-647,-646,-645,-644,-643,-642,-641 ! 105: .long -640,-639,-638,-637,-636,-635,-634,-633 ! 106: .long -632,-631,-630,-629,-628,-627,-626,-625 ! 107: .long -624,-623,-622,-621,-620,-619,-618,-617 ! 108: .long -616,-615,-614,-613,-612,-611,-610,-609 ! 109: .long -608,-607,-606,-605,-604,-603,-602,-601 ! 110: .long -600,-599,-598,-597,-596,-595,-594,-593 ! 111: .long -592,-591,-590,-589,-588,-587,-586,-585 ! 112: .long -584,-583,-582,-581,-580,-579,-578,-577 ! 113: .long -576,-575,-574,-573,-572,-571,-570,-569 ! 114: .long -568,-567,-566,-565,-564,-563,-562,-561 ! 115: .long -560,-559,-558,-557,-556,-555,-554,-553 ! 116: .long -552,-551,-550,-549,-548,-547,-546,-545 ! 117: .long -544,-543,-542,-541,-540,-539,-538,-537 ! 118: .long -536,-535,-534,-533,-532,-531,-530,-529 ! 119: .long -528,-527,-526,-525,-524,-523,-522,-521 ! 120: .long -520,-519,-518,-517,-516,-515,-514,-513 ! 121: .long -512,-511,-510,-509,-508,-507,-506,-505 ! 122: .long -504,-503,-502,-501,-500,-499,-498,-497 ! 123: .long -496,-495,-494,-493,-492,-491,-490,-489 ! 124: .long -488,-487,-486,-485,-484,-483,-482,-481 ! 125: .long -480,-479,-478,-477,-476,-475,-474,-473 ! 126: .long -472,-471,-470,-469,-468,-467,-466,-465 ! 127: .long -464,-463,-462,-461,-460,-459,-458,-457 ! 128: .long -456,-455,-454,-453,-452,-451,-450,-449 ! 129: .long -448,-447,-446,-445,-444,-443,-442,-441 ! 130: .long -440,-439,-438,-437,-436,-435,-434,-433 ! 131: .long -432,-431,-430,-429,-428,-427,-426,-425 ! 132: .long -424,-423,-422,-421,-420,-419,-418,-417 ! 133: .long -416,-415,-414,-413,-412,-411,-410,-409 ! 134: .long -408,-407,-406,-405,-404,-403,-402,-401 ! 135: .long -400,-399,-398,-397,-396,-395,-394,-393 ! 136: .long -392,-391,-390,-389,-388,-387,-386,-385 ! 137: .long -384,-383,-382,-381,-380,-379,-378,-377 ! 138: .long -376,-375,-374,-373,-372,-371,-370,-369 ! 139: .long -368,-367,-366,-365,-364,-363,-362,-361 ! 140: .long -360,-359,-358,-357,-356,-355,-354,-353 ! 141: .long -352,-351,-350,-349,-348,-347,-346,-345 ! 142: .long -344,-343,-342,-341,-340,-339,-338,-337 ! 143: .long -336,-335,-334,-333,-332,-331,-330,-329 ! 144: .long -328,-327,-326,-325,-324,-323,-322,-321 ! 145: .long -320,-319,-318,-317,-316,-315,-314,-313 ! 146: .long -312,-311,-310,-309,-308,-307,-306,-305 ! 147: .long -304,-303,-302,-301,-300,-299,-298,-297 ! 148: .long -296,-295,-294,-293,-292,-291,-290,-289 ! 149: .long -288,-287,-286,-285,-284,-283,-282,-281 ! 150: .long -280,-279,-278,-277,-276,-275,-274,-273 ! 151: .long -272,-271,-270,-269,-268,-267,-266,-265 ! 152: .long -264,-263,-262,-261,-260,-259,-258,-257 ! 153: .long -256,-255,-254,-253,-252,-251,-250,-249 ! 154: .long -248,-247,-246,-245,-244,-243,-242,-241 ! 155: .long -240,-239,-238,-237,-236,-235,-234,-233 ! 156: .long -232,-231,-230,-229,-228,-227,-226,-225 ! 157: .long -224,-223,-222,-221,-220,-219,-218,-217 ! 158: .long -216,-215,-214,-213,-212,-211,-210,-209 ! 159: .long -208,-207,-206,-205,-204,-203,-202,-201 ! 160: .long -200,-199,-198,-197,-196,-195,-194,-193 ! 161: .long -192,-191,-190,-189,-188,-187,-186,-185 ! 162: .long -184,-183,-182,-181,-180,-179,-178,-177 ! 163: .long -176,-175,-174,-173,-172,-171,-170,-169 ! 164: .long -168,-167,-166,-165,-164,-163,-162,-161 ! 165: .long -160,-159,-158,-157,-156,-155,-154,-153 ! 166: .long -152,-151,-150,-149,-148,-147,-146,-145 ! 167: .long -144,-143,-142,-141,-140,-139,-138,-137 ! 168: .long -136,-135,-134,-133,-132,-131,-130,-129 ! 169: .long -128,-127,-126,-125,-124,-123,-122,-121 ! 170: .long -120,-119,-118,-117,-116,-115,-114,-113 ! 171: .long -112,-111,-110,-109,-108,-107,-106,-105 ! 172: .long -104,-103,-102,-101,-100,-99,-98,-97 ! 173: .long -96,-95,-94,-93,-92,-91,-90,-89 ! 174: .long -88,-87,-86,-85,-84,-83,-82,-81 ! 175: .long -80,-79,-78,-77,-76,-75,-74,-73 ! 176: .long -72,-71,-70,-69,-68,-67,-66,-65 ! 177: .long -64,-63,-62,-61,-60,-59,-58,-57 ! 178: .long -56,-55,-54,-53,-52,-51,-50,-49 ! 179: .long -48,-47,-46,-45,-44,-43,-42,-41 ! 180: .long -40,-39,-38,-37,-36,-35,-34,-33 ! 181: .long -32,-31,-30,-29,-28,-27,-26,-25 ! 182: .long -24,-23,-22,-21,-20,-19,-18,-17 ! 183: .long -16,-15,-14,-13,-12,-11,-10,-9 ! 184: .long -8,-7,-6,-5,-4,-3,-2,-1 ! 185: Fixzero: ! 186: .long 0,1,2,3,4,5,6,7 ! 187: .long 8,9,10,11,12,13,14,15 ! 188: .long 16,17,18,19,20,21,22,23 ! 189: .long 24,25,26,27,28,29,30,31 ! 190: .long 32,33,34,35,36,37,38,39 ! 191: .long 40,41,42,43,44,45,46,47 ! 192: .long 48,49,50,51,52,53,54,55 ! 193: .long 56,57,58,59,60,61,62,63 ! 194: .long 64,65,66,67,68,69,70,71 ! 195: .long 72,73,74,75,76,77,78,79 ! 196: .long 80,81,82,83,84,85,86,87 ! 197: .long 88,89,90,91,92,93,94,95 ! 198: .long 96,97,98,99,100,101,102,103 ! 199: .long 104,105,106,107,108,109,110,111 ! 200: .long 112,113,114,115,116,117,118,119 ! 201: .long 120,121,122,123,124,125,126,127 ! 202: .long 128,129,130,131,132,133,134,135 ! 203: .long 136,137,138,139,140,141,142,143 ! 204: .long 144,145,146,147,148,149,150,151 ! 205: .long 152,153,154,155,156,157,158,159 ! 206: .long 160,161,162,163,164,165,166,167 ! 207: .long 168,169,170,171,172,173,174,175 ! 208: .long 176,177,178,179,180,181,182,183 ! 209: .long 184,185,186,187,188,189,190,191 ! 210: .long 192,193,194,195,196,197,198,199 ! 211: .long 200,201,202,203,204,205,206,207 ! 212: .long 208,209,210,211,212,213,214,215 ! 213: .long 216,217,218,219,220,221,222,223 ! 214: .long 224,225,226,227,228,229,230,231 ! 215: .long 232,233,234,235,236,237,238,239 ! 216: .long 240,241,242,243,244,245,246,247 ! 217: .long 248,249,250,251,252,253,254,255 ! 218: .long 256,257,258,259,260,261,262,263 ! 219: .long 264,265,266,267,268,269,270,271 ! 220: .long 272,273,274,275,276,277,278,279 ! 221: .long 280,281,282,283,284,285,286,287 ! 222: .long 288,289,290,291,292,293,294,295 ! 223: .long 296,297,298,299,300,301,302,303 ! 224: .long 304,305,306,307,308,309,310,311 ! 225: .long 312,313,314,315,316,317,318,319 ! 226: .long 320,321,322,323,324,325,326,327 ! 227: .long 328,329,330,331,332,333,334,335 ! 228: .long 336,337,338,339,340,341,342,343 ! 229: .long 344,345,346,347,348,349,350,351 ! 230: .long 352,353,354,355,356,357,358,359 ! 231: .long 360,361,362,363,364,365,366,367 ! 232: .long 368,369,370,371,372,373,374,375 ! 233: .long 376,377,378,379,380,381,382,383 ! 234: .long 384,385,386,387,388,389,390,391 ! 235: .long 392,393,394,395,396,397,398,399 ! 236: .long 400,401,402,403,404,405,406,407 ! 237: .long 408,409,410,411,412,413,414,415 ! 238: .long 416,417,418,419,420,421,422,423 ! 239: .long 424,425,426,427,428,429,430,431 ! 240: .long 432,433,434,435,436,437,438,439 ! 241: .long 440,441,442,443,444,445,446,447 ! 242: .long 448,449,450,451,452,453,454,455 ! 243: .long 456,457,458,459,460,461,462,463 ! 244: .long 464,465,466,467,468,469,470,471 ! 245: .long 472,473,474,475,476,477,478,479 ! 246: .long 480,481,482,483,484,485,486,487 ! 247: .long 488,489,490,491,492,493,494,495 ! 248: .long 496,497,498,499,500,501,502,503 ! 249: .long 504,505,506,507,508,509,510,511 ! 250: .long 512,513,514,515,516,517,518,519 ! 251: .long 520,521,522,523,524,525,526,527 ! 252: .long 528,529,530,531,532,533,534,535 ! 253: .long 536,537,538,539,540,541,542,543 ! 254: .long 544,545,546,547,548,549,550,551 ! 255: .long 552,553,554,555,556,557,558,559 ! 256: .long 560,561,562,563,564,565,566,567 ! 257: .long 568,569,570,571,572,573,574,575 ! 258: .long 576,577,578,579,580,581,582,583 ! 259: .long 584,585,586,587,588,589,590,591 ! 260: .long 592,593,594,595,596,597,598,599 ! 261: .long 600,601,602,603,604,605,606,607 ! 262: .long 608,609,610,611,612,613,614,615 ! 263: .long 616,617,618,619,620,621,622,623 ! 264: .long 624,625,626,627,628,629,630,631 ! 265: .long 632,633,634,635,636,637,638,639 ! 266: .long 640,641,642,643,644,645,646,647 ! 267: .long 648,649,650,651,652,653,654,655 ! 268: .long 656,657,658,659,660,661,662,663 ! 269: .long 664,665,666,667,668,669,670,671 ! 270: .long 672,673,674,675,676,677,678,679 ! 271: .long 680,681,682,683,684,685,686,687 ! 272: .long 688,689,690,691,692,693,694,695 ! 273: .long 696,697,698,699,700,701,702,703 ! 274: .long 704,705,706,707,708,709,710,711 ! 275: .long 712,713,714,715,716,717,718,719 ! 276: .long 720,721,722,723,724,725,726,727 ! 277: .long 728,729,730,731,732,733,734,735 ! 278: .long 736,737,738,739,740,741,742,743 ! 279: .long 744,745,746,747,748,749,750,751 ! 280: .long 752,753,754,755,756,757,758,759 ! 281: .long 760,761,762,763,764,765,766,767 ! 282: .long 768,769,770,771,772,773,774,775 ! 283: .long 776,777,778,779,780,781,782,783 ! 284: .long 784,785,786,787,788,789,790,791 ! 285: .long 792,793,794,795,796,797,798,799 ! 286: .long 800,801,802,803,804,805,806,807 ! 287: .long 808,809,810,811,812,813,814,815 ! 288: .long 816,817,818,819,820,821,822,823 ! 289: .long 824,825,826,827,828,829,830,831 ! 290: .long 832,833,834,835,836,837,838,839 ! 291: .long 840,841,842,843,844,845,846,847 ! 292: .long 848,849,850,851,852,853,854,855 ! 293: .long 856,857,858,859,860,861,862,863 ! 294: .long 864,865,866,867,868,869,870,871 ! 295: .long 872,873,874,875,876,877,878,879 ! 296: .long 880,881,882,883,884,885,886,887 ! 297: .long 888,889,890,891,892,893,894,895 ! 298: .long 896,897,898,899,900,901,902,903 ! 299: .long 904,905,906,907,908,909,910,911 ! 300: .long 912,913,914,915,916,917,918,919 ! 301: .long 920,921,922,923,924,925,926,927 ! 302: .long 928,929,930,931,932,933,934,935 ! 303: .long 936,937,938,939,940,941,942,943 ! 304: .long 944,945,946,947,948,949,950,951 ! 305: .long 952,953,954,955,956,957,958,959 ! 306: .long 960,961,962,963,964,965,966,967 ! 307: .long 968,969,970,971,972,973,974,975 ! 308: .long 976,977,978,979,980,981,982,983 ! 309: .long 984,985,986,987,988,989,990,991 ! 310: .long 992,993,994,995,996,997,998,999 ! 311: .long 1000,1001,1002,1003,1004,1005,1006,1007 ! 312: .long 1008,1009,1010,1011,1012,1013,1014,1015 ! 313: .long 1016,1017,1018,1019,1020,1021,1022,1023 ! 314: ! 315: start: ! 316: .word 0x0000 ! 317: subl2 $8,sp ! 318: movl 8(sp),(sp) # argc ! 319: movab 12(sp),r0 ! 320: movl r0,4(sp) # argv ! 321: L1: ! 322: tstl (r0)+ # null args term ? ! 323: bneq L1 ! 324: cmpl r0,*4(sp) # end of 'env' or 'argv' ? ! 325: blss L2 ! 326: tstl -(r0) # envp's are in list ! 327: L2: ! 328: movl r0,8(sp) # env ! 329: # movl r0,_environ # indir is 0 if no env ; not 0 if env ! 330: calls $3,_main ! 331: pushl r0 ! 332: calls $1,_exit ! 333: chmk $exit ! 334: _gstart: ! 335: .word 0 ! 336: moval start,r0 ! 337: ret ! 338: _proflush: ! 339: .word 0 ! 340: ret ! 341: # ! 342: .data ! 343: _holbeg: # dummy locations ! 344: _holend: ! 345: _environ: .space 4
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