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1.1.1.4 ! root 1: /* Multiprecision multiply routine. . . This assumes the ability to ! 2: * do a 32x32->64 multiply. I have put in dummy code for the multiplies ! 3: * which should be easily identifiable in the resulting source. ! 4: * This code was designed for the MIPS series processors, however ! 5: * should work pretty well on any machine with hardware multiply. ! 6: * The lack of a carry bit in the R3000 resulted in some of the ! 7: * machinations which take place. ! 8: * ! 9: * See code in dmul_proto.c for the prototype, and appropriate ! 10: * documentation. ! 11: * ! 12: * Note that this has hooks for both byte orderings of MIPS processors, ! 13: * and that if you have the wrong flags being set in your cpp, ! 14: * you may wind up with no code at all. (DEC's version will, when ! 15: * compiling for the other byte ordering, leave BOTH things defined, ! 16: * which is bad. . . ) ! 17: * ! 18: * - Castor Fu Wed Sep 30 11:48:38 PDT 1992 ! 19: */ ! 20: ! 21: #if defined(MIPSEL) && !defined(MIPSEB) ! 22: .verstamp 2 10 ! 23: .extern global_precision 2 ! 24: .text ! 25: .align 2 ! 26: .file 2 "ndmulprotoEL.c" ! 27: .globl p_dmul ! 28: .loc 2 69 ! 29: # 69 { ! 30: .ent p_dmul 2 ! 31: p_dmul: ! 32: .option O2 ! 33: subu $sp, 168 ! 34: sd $30, 32($sp) ! 35: sd $22, 24($sp) ! 36: sd $20, 16($sp) ! 37: sd $18, 8($sp) ! 38: sd $16, 0($sp) ! 39: .mask 0xC0FF0000, -132 ! 40: .frame $sp, 168, $31 ! 41: sw $5, 172($sp) ! 42: sw $6, 176($sp) ! 43: .loc 2 76 ! 44: # 76 preca = global_precision; ! 45: lh $14, global_precision ! 46: sw $14, 164($sp) ! 47: .loc 2 77 ! 48: # 77 pp=msbptr(multiplicand,preca); ! 49: .loc 2 78 ! 50: # 78 while(*post_lowerunit(pp) == 0 && preca > 0) preca--; ! 51: mul $2, $14, 4 ! 52: lw $15, 172($sp) ! 53: addu $3, $15, $2 ! 54: lw $11, -4($3) ! 55: addu $20, $3, -8 ! 56: bne $11, 0, $33 ! 57: ble $14, 0, $33 ! 58: $32: ! 59: lw $24, 164($sp) ! 60: addu $25, $24, -1 ! 61: sw $25, 164($sp) ! 62: lw $11, 0($20) ! 63: addu $20, $20, -4 ! 64: bne $11, 0, $33 ! 65: bgt $25, 0, $32 ! 66: $33: ! 67: .loc 2 80 ! 68: # 79 ! 69: # 80 precb = global_precision; ! 70: lh $15, global_precision ! 71: sw $15, 160($sp) ! 72: .loc 2 81 ! 73: # 81 pp = msbptr(multiplier,precb); ! 74: .loc 2 82 ! 75: # 82 while(*post_lowerunit(pp) == 0 && precb > 0) precb--; ! 76: lw $14, 176($sp) ! 77: addu $3, $14, $2 ! 78: lw $11, -4($3) ! 79: addu $20, $3, -8 ! 80: bne $11, 0, $35 ! 81: ble $15, 0, $35 ! 82: $34: ! 83: lw $24, 160($sp) ! 84: addu $25, $24, -1 ! 85: sw $25, 160($sp) ! 86: lw $11, 0($20) ! 87: addu $20, $20, -4 ! 88: bne $11, 0, $35 ! 89: bgt $25, 0, $34 ! 90: $35: ! 91: .loc 2 84 ! 92: # 83 ! 93: # 84 prec2 = global_precision<<1; ! 94: lh $3, global_precision ! 95: sll $3, $3, 1 ! 96: move $2, $3 ! 97: .loc 2 86 ! 98: # 85 ! 99: # 86 pp = msbptr(prod,prec2); ! 100: mul $14, $3, 4 ! 101: addu $20, $4, $14 ! 102: addu $20, $20, -4 ! 103: .loc 2 87 ! 104: # 87 for (i= preca+precb; i < prec2 ; i++) { ! 105: lw $15, 164($sp) ! 106: lw $24, 160($sp) ! 107: addu $25, $15, $24 ! 108: sw $25, 72($sp) ! 109: move $21, $25 ! 110: bge $25, $3, $37 ! 111: $36: ! 112: .loc 2 88 ! 113: # 88 *post_lowerunit(pp) = 0; ! 114: sw $0, 0($20) ! 115: addu $20, $20, -4 ! 116: .loc 2 89 ! 117: # 89 } ! 118: .loc 2 89 ! 119: addu $21, $21, 1 ! 120: blt $21, $2, $36 ! 121: $37: ! 122: .loc 2 90 ! 123: # 90 if (preca == 0 || precb == 0) { ! 124: lw $14, 164($sp) ! 125: beq $14, 0, $38 ! 126: lw $15, 160($sp) ! 127: bne $15, 0, $41 ! 128: $38: ! 129: .loc 2 91 ! 130: # 91 pp = lsbptr(prod,prec2); ! 131: move $20, $4 ! 132: .loc 2 92 ! 133: # 92 for (i=0; i < preca + precb; i++) ! 134: move $21, $0 ! 135: lw $24, 72($sp) ! 136: ble $24, 0, $61 ! 137: and $2, $24, 3 ! 138: beq $2, 0, $40 ! 139: $39: ! 140: sw $0, 0($20) ! 141: addu $20, $20, 4 ! 142: addu $21, $21, 1 ! 143: bne $2, $21, $39 ! 144: lw $25, 72($sp) ! 145: beq $21, $25, $61 ! 146: $40: ! 147: .loc 2 93 ! 148: # 93 *(post_higherunit(pp)) = 0; ! 149: sw $0, 0($20) ! 150: addu $20, $20, 4 ! 151: sw $0, 0($20) ! 152: addu $20, $20, 4 ! 153: sw $0, 0($20) ! 154: addu $20, $20, 4 ! 155: sw $0, 0($20) ! 156: addu $20, $20, 4 ! 157: addu $21, $21, 4 ! 158: lw $14, 72($sp) ! 159: bne $21, $14, $40 ! 160: .loc 2 94 ! 161: # 94 return; ! 162: b $61 ! 163: $41: ! 164: .loc 2 97 ! 165: # 95 } ! 166: # 96 /* Canonicalize length(a) >= length(b) */ ! 167: # 97 if (preca < precb) { ! 168: lw $15, 164($sp) ! 169: lw $24, 160($sp) ! 170: bge $15, $24, $42 ! 171: .loc 2 98 ! 172: # 98 pp = multiplicand; ! 173: lw $20, 172($sp) ! 174: .loc 2 99 ! 175: # 99 multiplicand = multiplier; ! 176: lw $25, 176($sp) ! 177: sw $25, 172($sp) ! 178: .loc 2 100 ! 179: # 100 multiplier = pp; ! 180: sw $20, 176($sp) ! 181: .loc 2 101 ! 182: # 101 i = preca; ! 183: move $21, $15 ! 184: .loc 2 102 ! 185: # 102 preca = precb; ! 186: sw $24, 164($sp) ! 187: .loc 2 103 ! 188: # 103 precb = i; ! 189: sw $21, 160($sp) ! 190: .loc 2 104 ! 191: # 104 } ! 192: lw $14, 164($sp) ! 193: lw $25, 160($sp) ! 194: addu $15, $14, $25 ! 195: sw $15, 72($sp) ! 196: $42: ! 197: .loc 2 107 ! 198: # 105 make_lsbptr(multiplicand, global_precision); ! 199: # 106 make_lsbptr(multiplier, global_precision); ! 200: # 107 pp = lsbptr(prod,prec2); ! 201: move $20, $4 ! 202: .loc 2 108 ! 203: # 108 ah = 0; ! 204: move $12, $0 ! 205: .loc 2 109 ! 206: # 109 carryl = 0; ! 207: move $19, $0 ! 208: .loc 2 110 ! 209: # 110 carryh =0; ! 210: move $18, $0 ! 211: .loc 2 111 ! 212: # 111 al = 0; ! 213: .loc 2 114 ! 214: # 112 ! 215: # 113 ! 216: # 114 amin = 0; ! 217: .loc 2 115 ! 218: # 115 for (i=0; i < precb; i++) { ! 219: move $21, $0 ! 220: lw $24, 160($sp) ! 221: ble $24, 0, $48 ! 222: lw $23, 172($sp) ! 223: addu $30, $23, -4 ! 224: lw $14, 176($sp) ! 225: addu $25, $14, 4 ! 226: sw $25, 56($sp) ! 227: $43: ! 228: .loc 2 116 ! 229: # 116 amax = i; ! 230: .loc 2 117 ! 231: # 117 ma = word_index(multiplicand,i -1); ! 232: move $13, $30 ! 233: .loc 2 118 ! 234: # 118 mb = word_index(multiplier,1); ! 235: lw $16, 56($sp) ! 236: .loc 2 119 ! 237: # 119 lmul(word_v(ma,1),word_v(mb,-1),ml, mh); ! 238: lw $2, 0($23) ! 239: lw $15, 176($sp) ! 240: lw $3, 0($15) ! 241: multu $2, $3 ! 242: mflo $9 ! 243: mfhi $10 ! 244: .loc 2 120 ! 245: # 120 al = ah+ carryl; ! 246: addu $4, $12, $19 ! 247: move $8, $4 ! 248: .loc 2 121 ! 249: # 121 carryl = carryh + (al < ah); ! 250: sltu $24, $4, $12 ! 251: addu $19, $18, $24 ! 252: .loc 2 122 ! 253: # 122 ah = 0; ! 254: move $12, $0 ! 255: .loc 2 123 ! 256: # 123 carryh = 0; ! 257: move $18, $0 ! 258: .loc 2 124 ! 259: # 124 j = amax - amin; ! 260: move $5, $21 ! 261: move $31, $5 ! 262: .loc 2 125 ! 263: # 125 k = j & 3; ! 264: .loc 2 126 ! 265: # 126 while (k--) { ! 266: and $6, $5, 3 ! 267: addu $17, $6, -1 ! 268: beq $6, $0, $45 ! 269: $44: ! 270: .loc 2 127 ! 271: # 127 lmul( *ma, *mb, nml, nmh); ! 272: lw $2, 0($13) ! 273: lw $3, 0($16) ! 274: multu $2, $3 ! 275: .loc 2 128 ! 276: # 128 al += ml; ! 277: addu $8, $8, $9 ! 278: .loc 2 129 ! 279: # 129 carryl += (al < ml); ! 280: sltu $14, $8, $9 ! 281: addu $19, $19, $14 ! 282: .loc 2 130 ! 283: # 130 ah += mh; ! 284: addu $12, $12, $10 ! 285: .loc 2 131 ! 286: # 131 carryh += (ah < mh); ! 287: sltu $25, $12, $10 ! 288: addu $18, $18, $25 ! 289: .loc 2 132 ! 290: # 132 post_lowerunit(ma); ! 291: addu $13, $13, -4 ! 292: .loc 2 133 ! 293: # 133 post_higherunit(mb); ! 294: addu $16, $16, 4 ! 295: .loc 2 134 ! 296: # 134 ml = nml; ! 297: mflo $9 ! 298: .loc 2 135 ! 299: # 135 mh = nmh; ! 300: mfhi $10 ! 301: .loc 2 136 ! 302: # 136 } ! 303: .loc 2 136 ! 304: move $11, $17 ! 305: addu $17, $17, -1 ! 306: bne $11, 0, $44 ! 307: $45: ! 308: .loc 2 137 ! 309: # 137 k = j >> 2; ! 310: .loc 2 138 ! 311: # 138 while (k--) { ! 312: sra $2, $31, 2 ! 313: addu $17, $2, -1 ! 314: beq $2, $0, $47 ! 315: $46: ! 316: .loc 2 139 ! 317: # 139 lmul( word_v(ma,0), word_v(mb,0), nml, nmh); ! 318: lw $2, 0($13) ! 319: lw $3, 0($16) ! 320: multu $2, $3 ! 321: .loc 2 140 ! 322: # 140 al += ml; ! 323: addu $8, $8, $9 ! 324: .loc 2 141 ! 325: # 141 carryl += (al < ml); ! 326: sltu $15, $8, $9 ! 327: addu $19, $19, $15 ! 328: .loc 2 142 ! 329: # 142 ah += mh; ! 330: addu $12, $12, $10 ! 331: .loc 2 143 ! 332: # 143 carryh += (ah < mh); ! 333: sltu $24, $12, $10 ! 334: addu $18, $18, $24 ! 335: .loc 2 144 ! 336: # 144 ml = nml; ! 337: mflo $9 ! 338: .loc 2 145 ! 339: # 145 mh = nmh; ! 340: mfhi $10 ! 341: .loc 2 147 ! 342: # 146 ! 343: # 147 lmul( word_v(ma,-1), word_v(mb,1), nml, nmh); ! 344: lw $4, -4($13) ! 345: lw $5, 4($16) ! 346: multu $4, $5 ! 347: .loc 2 148 ! 348: # 148 al += ml; ! 349: addu $8, $8, $9 ! 350: .loc 2 149 ! 351: # 149 carryl += (al < ml); ! 352: sltu $14, $8, $9 ! 353: addu $19, $19, $14 ! 354: .loc 2 150 ! 355: # 150 ah += mh; ! 356: addu $12, $12, $10 ! 357: .loc 2 151 ! 358: # 151 carryh += (ah < mh); ! 359: sltu $25, $12, $10 ! 360: addu $18, $18, $25 ! 361: .loc 2 152 ! 362: # 152 ml = nml; ! 363: mflo $9 ! 364: .loc 2 153 ! 365: # 153 mh = nmh; ! 366: mfhi $10 ! 367: .loc 2 155 ! 368: # 154 ! 369: # 155 lmul( word_v(ma,-2), word_v(mb,2), nml, nmh); ! 370: lw $2, -8($13) ! 371: lw $3, 8($16) ! 372: multu $2, $3 ! 373: .loc 2 156 ! 374: # 156 al += ml; ! 375: addu $8, $8, $9 ! 376: .loc 2 157 ! 377: # 157 carryl += (al < ml); ! 378: sltu $15, $8, $9 ! 379: addu $19, $19, $15 ! 380: .loc 2 158 ! 381: # 158 ah += mh; ! 382: addu $12, $12, $10 ! 383: .loc 2 159 ! 384: # 159 carryh += (ah < mh); ! 385: sltu $24, $12, $10 ! 386: addu $18, $18, $24 ! 387: .loc 2 160 ! 388: # 160 ml = nml; ! 389: mflo $9 ! 390: .loc 2 161 ! 391: # 161 mh = nmh; ! 392: mfhi $10 ! 393: .loc 2 163 ! 394: # 162 ! 395: # 163 lmul( word_v(ma,-3), word_v(mb,3), nml, nmh); ! 396: lw $4, -12($13) ! 397: lw $5, 12($16) ! 398: multu $4, $5 ! 399: .loc 2 164 ! 400: # 164 al += ml; ! 401: addu $8, $8, $9 ! 402: .loc 2 165 ! 403: # 165 carryl += (al < ml); ! 404: sltu $14, $8, $9 ! 405: addu $19, $19, $14 ! 406: .loc 2 166 ! 407: # 166 ah += mh; ! 408: addu $12, $12, $10 ! 409: .loc 2 167 ! 410: # 167 carryh += (ah < mh); ! 411: sltu $25, $12, $10 ! 412: addu $18, $18, $25 ! 413: .loc 2 168 ! 414: # 168 ml = nml; ! 415: mflo $9 ! 416: .loc 2 169 ! 417: # 169 mh = nmh; ! 418: mfhi $10 ! 419: .loc 2 171 ! 420: # 170 ! 421: # 171 nlowerunit(ma,4); nhigherunit(mb,4); ! 422: addu $13, $13, -16 ! 423: addu $16, $16, 16 ! 424: .loc 2 173 ! 425: # 172 ! 426: # 173 } ! 427: .loc 2 173 ! 428: move $11, $17 ! 429: addu $17, $17, -1 ! 430: bne $11, 0, $46 ! 431: $47: ! 432: .loc 2 175 ! 433: # 174 ! 434: # 175 al += ml; ! 435: addu $8, $8, $9 ! 436: .loc 2 176 ! 437: # 176 carryl += (al < ml); ! 438: sltu $15, $8, $9 ! 439: addu $19, $19, $15 ! 440: .loc 2 177 ! 441: # 177 *pp = al; ! 442: sw $8, 0($20) ! 443: .loc 2 178 ! 444: # 178 ah += mh; ! 445: addu $12, $12, $10 ! 446: .loc 2 179 ! 447: # 179 carryh += (ah < mh); ! 448: sltu $24, $12, $10 ! 449: addu $18, $18, $24 ! 450: .loc 2 180 ! 451: # 180 post_higherunit(pp); ! 452: addu $20, $20, 4 ! 453: .loc 2 181 ! 454: # 181 } ! 455: .loc 2 181 ! 456: addu $21, $21, 1 ! 457: addu $23, $23, 4 ! 458: addu $30, $30, 4 ! 459: lw $14, 160($sp) ! 460: bne $21, $14, $43 ! 461: $48: ! 462: .loc 2 182 ! 463: # 182 amax = precb-1; ! 464: .loc 2 183 ! 465: # 183 for (i=precb; i < preca; i++) { ! 466: lw $25, 160($sp) ! 467: move $21, $25 ! 468: lw $15, 164($sp) ! 469: bge $25, $15, $54 ! 470: mul $22, $21, 4 ! 471: lw $24, 172($sp) ! 472: addu $23, $24, $22 ! 473: addu $30, $23, -4 ! 474: lw $14, 176($sp) ! 475: addu $24, $14, 4 ! 476: sw $24, 56($sp) ! 477: mul $14, $15, 4 ! 478: sw $14, 52($sp) ! 479: addu $2, $25, -1 ! 480: move $31, $2 ! 481: and $24, $2, 3 ! 482: sw $24, 44($sp) ! 483: addu $15, $24, -1 ! 484: sw $15, 40($sp) ! 485: $49: ! 486: .loc 2 184 ! 487: # 184 ma = word_index( multiplicand,i-1); ! 488: move $13, $30 ! 489: .loc 2 185 ! 490: # 185 mb = word_index(multiplier,1); ! 491: lw $16, 56($sp) ! 492: .loc 2 186 ! 493: # 186 lmul(word_v(ma,1),word_v(mb,-1),ml, mh); ! 494: lw $2, 0($23) ! 495: lw $14, 176($sp) ! 496: lw $3, 0($14) ! 497: multu $2, $3 ! 498: mflo $9 ! 499: mfhi $10 ! 500: .loc 2 187 ! 501: # 187 al = ah+ carryl; ! 502: addu $4, $12, $19 ! 503: move $8, $4 ! 504: .loc 2 188 ! 505: # 188 carryl = carryh + (al < ah); ! 506: sltu $25, $4, $12 ! 507: addu $19, $18, $25 ! 508: .loc 2 189 ! 509: # 189 ah = 0; ! 510: move $12, $0 ! 511: .loc 2 190 ! 512: # 190 carryh = 0; ! 513: move $18, $0 ! 514: .loc 2 191 ! 515: # 191 j = amax - amin; ! 516: .loc 2 192 ! 517: # 192 k = j & 3; ! 518: .loc 2 193 ! 519: # 193 while (k--) { ! 520: lw $17, 40($sp) ! 521: lw $24, 44($sp) ! 522: beq $24, $0, $51 ! 523: $50: ! 524: .loc 2 194 ! 525: # 194 lmul( *ma, *mb, nml, nmh); ! 526: lw $2, 0($13) ! 527: lw $3, 0($16) ! 528: multu $2, $3 ! 529: .loc 2 195 ! 530: # 195 al += ml; ! 531: addu $8, $8, $9 ! 532: .loc 2 196 ! 533: # 196 carryl += (al < ml); ! 534: sltu $15, $8, $9 ! 535: addu $19, $19, $15 ! 536: .loc 2 197 ! 537: # 197 ah += mh; ! 538: addu $12, $12, $10 ! 539: .loc 2 198 ! 540: # 198 carryh += (ah < mh); ! 541: sltu $14, $12, $10 ! 542: addu $18, $18, $14 ! 543: .loc 2 199 ! 544: # 199 post_lowerunit(ma); ! 545: addu $13, $13, -4 ! 546: .loc 2 200 ! 547: # 200 post_higherunit(mb); ! 548: addu $16, $16, 4 ! 549: .loc 2 201 ! 550: # 201 ml = nml; ! 551: mflo $9 ! 552: .loc 2 202 ! 553: # 202 mh = nmh; ! 554: mfhi $10 ! 555: .loc 2 203 ! 556: # 203 } ! 557: .loc 2 203 ! 558: move $11, $17 ! 559: addu $17, $17, -1 ! 560: bne $11, 0, $50 ! 561: $51: ! 562: .loc 2 204 ! 563: # 204 k = j >> 2; ! 564: .loc 2 205 ! 565: # 205 while (k--) { ! 566: sra $2, $31, 2 ! 567: addu $17, $2, -1 ! 568: beq $2, $0, $53 ! 569: $52: ! 570: .loc 2 206 ! 571: # 206 lmul( word_v(ma,0), word_v(mb,0), nml, nmh); ! 572: lw $2, 0($13) ! 573: lw $3, 0($16) ! 574: multu $2, $3 ! 575: .loc 2 207 ! 576: # 207 al += ml; ! 577: addu $8, $8, $9 ! 578: .loc 2 208 ! 579: # 208 carryl += (al < ml); ! 580: sltu $25, $8, $9 ! 581: addu $19, $19, $25 ! 582: .loc 2 209 ! 583: # 209 ah += mh; ! 584: addu $12, $12, $10 ! 585: .loc 2 210 ! 586: # 210 carryh += (ah < mh); ! 587: sltu $24, $12, $10 ! 588: addu $18, $18, $24 ! 589: .loc 2 211 ! 590: # 211 ml = nml; ! 591: mflo $9 ! 592: .loc 2 212 ! 593: # 212 mh = nmh; ! 594: mfhi $10 ! 595: .loc 2 214 ! 596: # 213 ! 597: # 214 lmul( word_v(ma,-1), word_v(mb,1), nml, nmh); ! 598: lw $4, -4($13) ! 599: lw $5, 4($16) ! 600: multu $4, $5 ! 601: .loc 2 215 ! 602: # 215 al += ml; ! 603: addu $8, $8, $9 ! 604: .loc 2 216 ! 605: # 216 carryl += (al < ml); ! 606: sltu $15, $8, $9 ! 607: addu $19, $19, $15 ! 608: .loc 2 217 ! 609: # 217 ah += mh; ! 610: addu $12, $12, $10 ! 611: .loc 2 218 ! 612: # 218 carryh += (ah < mh); ! 613: sltu $14, $12, $10 ! 614: addu $18, $18, $14 ! 615: .loc 2 219 ! 616: # 219 ml = nml; ! 617: mflo $9 ! 618: .loc 2 220 ! 619: # 220 mh = nmh; ! 620: mfhi $10 ! 621: .loc 2 222 ! 622: # 221 ! 623: # 222 lmul( word_v(ma,-2), word_v(mb,2), nml, nmh); ! 624: lw $2, -8($13) ! 625: lw $3, 8($16) ! 626: multu $2, $3 ! 627: .loc 2 223 ! 628: # 223 al += ml; ! 629: addu $8, $8, $9 ! 630: .loc 2 224 ! 631: # 224 carryl += (al < ml); ! 632: sltu $25, $8, $9 ! 633: addu $19, $19, $25 ! 634: .loc 2 225 ! 635: # 225 ah += mh; ! 636: addu $12, $12, $10 ! 637: .loc 2 226 ! 638: # 226 carryh += (ah < mh); ! 639: sltu $24, $12, $10 ! 640: addu $18, $18, $24 ! 641: .loc 2 227 ! 642: # 227 ml = nml; ! 643: mflo $9 ! 644: .loc 2 228 ! 645: # 228 mh = nmh; ! 646: mfhi $10 ! 647: .loc 2 230 ! 648: # 229 ! 649: # 230 lmul( word_v(ma,-3), word_v(mb,3), nml, nmh); ! 650: lw $4, -12($13) ! 651: lw $5, 12($16) ! 652: multu $4, $5 ! 653: .loc 2 231 ! 654: # 231 al += ml; ! 655: addu $8, $8, $9 ! 656: .loc 2 232 ! 657: # 232 carryl += (al < ml); ! 658: sltu $15, $8, $9 ! 659: addu $19, $19, $15 ! 660: .loc 2 233 ! 661: # 233 ah += mh; ! 662: addu $12, $12, $10 ! 663: .loc 2 234 ! 664: # 234 carryh += (ah < mh); ! 665: sltu $14, $12, $10 ! 666: addu $18, $18, $14 ! 667: .loc 2 235 ! 668: # 235 ml = nml; ! 669: mflo $9 ! 670: .loc 2 236 ! 671: # 236 mh = nmh; ! 672: mfhi $10 ! 673: .loc 2 238 ! 674: # 237 ! 675: # 238 nlowerunit(ma,4); ! 676: addu $13, $13, -16 ! 677: .loc 2 239 ! 678: # 239 nhigherunit(mb,4); ! 679: addu $16, $16, 16 ! 680: .loc 2 240 ! 681: # 240 } ! 682: .loc 2 240 ! 683: move $11, $17 ! 684: addu $17, $17, -1 ! 685: bne $11, 0, $52 ! 686: $53: ! 687: .loc 2 242 ! 688: # 241 ! 689: # 242 al += ml; ! 690: addu $8, $8, $9 ! 691: .loc 2 243 ! 692: # 243 carryl += (al < ml); ! 693: sltu $25, $8, $9 ! 694: addu $19, $19, $25 ! 695: .loc 2 244 ! 696: # 244 *pp = al; ! 697: sw $8, 0($20) ! 698: .loc 2 245 ! 699: # 245 ah += mh; ! 700: addu $12, $12, $10 ! 701: .loc 2 246 ! 702: # 246 carryh += (ah < mh); ! 703: sltu $24, $12, $10 ! 704: addu $18, $18, $24 ! 705: .loc 2 247 ! 706: # 247 post_higherunit(pp); ! 707: addu $20, $20, 4 ! 708: .loc 2 248 ! 709: # 248 } ! 710: .loc 2 248 ! 711: addu $22, $22, 4 ! 712: addu $23, $23, 4 ! 713: addu $30, $30, 4 ! 714: lw $15, 52($sp) ! 715: blt $22, $15, $49 ! 716: $54: ! 717: .loc 2 249 ! 718: # 249 amax = precb-1; ! 719: .loc 2 250 ! 720: # 250 for (i=preca; i < preca + precb -1; i++) { ! 721: lw $14, 164($sp) ! 722: move $21, $14 ! 723: lw $25, 72($sp) ! 724: addu $24, $25, -1 ! 725: sw $24, 68($sp) ! 726: bge $14, $24, $60 ! 727: lw $15, 160($sp) ! 728: addu $25, $15, -1 ! 729: sw $25, 72($sp) ! 730: lw $24, 172($sp) ! 731: mul $15, $14, 4 ! 732: addu $30, $24, $15 ! 733: addu $25, $30, -8 ! 734: sw $25, 60($sp) ! 735: lw $24, 176($sp) ! 736: subu $15, $21, $14 ! 737: mul $25, $15, 4 ! 738: addu $22, $24, $25 ! 739: addu $23, $22, 8 ! 740: $55: ! 741: .loc 2 251 ! 742: # 251 amin = i-preca + 1; ! 743: .loc 2 252 ! 744: # 252 ma = word_index(multiplicand,preca-2); ! 745: lw $13, 60($sp) ! 746: .loc 2 253 ! 747: # 253 mb = word_index(multiplier, - preca + 2 +i) ; ! 748: move $16, $23 ! 749: .loc 2 254 ! 750: # 254 lmul(word_v(ma,1),word_v(mb,-1),ml, mh); ! 751: lw $2, -4($30) ! 752: lw $3, 4($22) ! 753: multu $2, $3 ! 754: mflo $9 ! 755: mfhi $10 ! 756: .loc 2 255 ! 757: # 255 al = ah+ carryl; ! 758: addu $4, $12, $19 ! 759: move $8, $4 ! 760: .loc 2 256 ! 761: # 256 carryl = carryh + (al < ah); ! 762: sltu $14, $4, $12 ! 763: addu $19, $18, $14 ! 764: .loc 2 257 ! 765: # 257 ah = 0; ! 766: move $12, $0 ! 767: .loc 2 258 ! 768: # 258 carryh = 0; ! 769: move $18, $0 ! 770: .loc 2 259 ! 771: # 259 j = amax - amin; ! 772: lw $15, 72($sp) ! 773: lw $24, 164($sp) ! 774: subu $25, $21, $24 ! 775: subu $5, $15, $25 ! 776: addu $5, $5, -1 ! 777: move $31, $5 ! 778: .loc 2 260 ! 779: # 260 k = j & 3; ! 780: .loc 2 261 ! 781: # 261 while (k--) { ! 782: and $6, $5, 3 ! 783: addu $17, $6, -1 ! 784: beq $6, $0, $57 ! 785: $56: ! 786: .loc 2 262 ! 787: # 262 lmul( *ma, *mb, nml, nmh); ! 788: lw $2, 0($13) ! 789: lw $3, 0($16) ! 790: multu $2, $3 ! 791: .loc 2 263 ! 792: # 263 al += ml; ! 793: addu $8, $8, $9 ! 794: .loc 2 264 ! 795: # 264 carryl += (al < ml); ! 796: sltu $14, $8, $9 ! 797: addu $19, $19, $14 ! 798: .loc 2 265 ! 799: # 265 ah += mh; ! 800: addu $12, $12, $10 ! 801: .loc 2 266 ! 802: # 266 carryh += (ah < mh); ! 803: sltu $24, $12, $10 ! 804: addu $18, $18, $24 ! 805: .loc 2 267 ! 806: # 267 post_lowerunit(ma); ! 807: addu $13, $13, -4 ! 808: .loc 2 268 ! 809: # 268 post_higherunit(mb); ! 810: addu $16, $16, 4 ! 811: .loc 2 269 ! 812: # 269 ml = nml; ! 813: mflo $9 ! 814: .loc 2 270 ! 815: # 270 mh = nmh; ! 816: mfhi $10 ! 817: .loc 2 271 ! 818: # 271 } ! 819: .loc 2 271 ! 820: move $11, $17 ! 821: addu $17, $17, -1 ! 822: bne $11, 0, $56 ! 823: $57: ! 824: .loc 2 272 ! 825: # 272 k = j >> 2; ! 826: .loc 2 273 ! 827: # 273 while (k--) { ! 828: sra $2, $31, 2 ! 829: addu $17, $2, -1 ! 830: beq $2, $0, $59 ! 831: $58: ! 832: .loc 2 274 ! 833: # 274 lmul( word_v(ma,0), word_v(mb,0), nml, nmh); ! 834: lw $2, 0($13) ! 835: lw $3, 0($16) ! 836: multu $2, $3 ! 837: .loc 2 275 ! 838: # 275 al += ml; ! 839: addu $8, $8, $9 ! 840: .loc 2 276 ! 841: # 276 carryl += (al < ml); ! 842: sltu $15, $8, $9 ! 843: addu $19, $19, $15 ! 844: .loc 2 277 ! 845: # 277 ah += mh; ! 846: addu $12, $12, $10 ! 847: .loc 2 278 ! 848: # 278 carryh += (ah < mh); ! 849: sltu $25, $12, $10 ! 850: addu $18, $18, $25 ! 851: .loc 2 279 ! 852: # 279 ml = nml; ! 853: mflo $9 ! 854: .loc 2 280 ! 855: # 280 mh = nmh; ! 856: mfhi $10 ! 857: .loc 2 282 ! 858: # 281 ! 859: # 282 lmul( word_v(ma,-1), word_v(mb,1), nml, nmh); ! 860: lw $4, -4($13) ! 861: lw $5, 4($16) ! 862: multu $4, $5 ! 863: .loc 2 283 ! 864: # 283 al += ml; ! 865: addu $8, $8, $9 ! 866: .loc 2 284 ! 867: # 284 carryl += (al < ml); ! 868: sltu $14, $8, $9 ! 869: addu $19, $19, $14 ! 870: .loc 2 285 ! 871: # 285 ah += mh; ! 872: addu $12, $12, $10 ! 873: .loc 2 286 ! 874: # 286 carryh += (ah < mh); ! 875: sltu $24, $12, $10 ! 876: addu $18, $18, $24 ! 877: .loc 2 287 ! 878: # 287 ml = nml; ! 879: mflo $9 ! 880: .loc 2 288 ! 881: # 288 mh = nmh; ! 882: mfhi $10 ! 883: .loc 2 290 ! 884: # 289 ! 885: # 290 lmul( word_v(ma,-2), word_v(mb,2), nml, nmh); ! 886: lw $2, -8($13) ! 887: lw $3, 8($16) ! 888: multu $2, $3 ! 889: .loc 2 291 ! 890: # 291 al += ml; ! 891: addu $8, $8, $9 ! 892: .loc 2 292 ! 893: # 292 carryl += (al < ml); ! 894: sltu $15, $8, $9 ! 895: addu $19, $19, $15 ! 896: .loc 2 293 ! 897: # 293 ah += mh; ! 898: addu $12, $12, $10 ! 899: .loc 2 294 ! 900: # 294 carryh += (ah < mh); ! 901: sltu $25, $12, $10 ! 902: addu $18, $18, $25 ! 903: .loc 2 295 ! 904: # 295 ml = nml; ! 905: mflo $9 ! 906: .loc 2 296 ! 907: # 296 mh = nmh; ! 908: mfhi $10 ! 909: .loc 2 298 ! 910: # 297 ! 911: # 298 lmul( word_v(ma,-3), word_v(mb,3), nml, nmh); ! 912: lw $4, -12($13) ! 913: lw $5, 12($16) ! 914: multu $4, $5 ! 915: .loc 2 299 ! 916: # 299 al += ml; ! 917: addu $8, $8, $9 ! 918: .loc 2 300 ! 919: # 300 carryl += (al < ml); ! 920: sltu $14, $8, $9 ! 921: addu $19, $19, $14 ! 922: .loc 2 301 ! 923: # 301 ah += mh; ! 924: addu $12, $12, $10 ! 925: .loc 2 302 ! 926: # 302 carryh += (ah < mh); ! 927: sltu $24, $12, $10 ! 928: addu $18, $18, $24 ! 929: .loc 2 303 ! 930: # 303 ml = nml; ! 931: mflo $9 ! 932: .loc 2 304 ! 933: # 304 mh = nmh; ! 934: mfhi $10 ! 935: .loc 2 306 ! 936: # 305 ! 937: # 306 nlowerunit(ma,4); ! 938: addu $13, $13, -16 ! 939: .loc 2 307 ! 940: # 307 nhigherunit(mb,4); ! 941: addu $16, $16, 16 ! 942: .loc 2 308 ! 943: # 308 } ! 944: .loc 2 308 ! 945: move $11, $17 ! 946: addu $17, $17, -1 ! 947: bne $11, 0, $58 ! 948: $59: ! 949: .loc 2 310 ! 950: # 309 ! 951: # 310 al += ml; ! 952: addu $8, $8, $9 ! 953: .loc 2 311 ! 954: # 311 carryl += (al < ml); ! 955: sltu $15, $8, $9 ! 956: addu $19, $19, $15 ! 957: .loc 2 312 ! 958: # 312 *pp = al; ! 959: sw $8, 0($20) ! 960: .loc 2 313 ! 961: # 313 ah += mh; ! 962: addu $12, $12, $10 ! 963: .loc 2 314 ! 964: # 314 carryh += (ah < mh); ! 965: sltu $25, $12, $10 ! 966: addu $18, $18, $25 ! 967: .loc 2 315 ! 968: # 315 post_higherunit(pp); ! 969: addu $20, $20, 4 ! 970: .loc 2 316 ! 971: # 316 } ! 972: .loc 2 316 ! 973: addu $21, $21, 1 ! 974: addu $22, $22, 4 ! 975: addu $23, $23, 4 ! 976: lw $14, 68($sp) ! 977: blt $21, $14, $55 ! 978: $60: ! 979: .loc 2 317 ! 980: # 317 al = ah + carryl; ! 981: .loc 2 318 ! 982: # 318 carryh += (al < ah); ! 983: .loc 2 319 ! 984: # 319 *pp = al; ! 985: addu $24, $12, $19 ! 986: sw $24, 0($20) ! 987: .loc 2 320 ! 988: # 320 } ! 989: $61: ! 990: ld $16, 0($sp) ! 991: ld $18, 8($sp) ! 992: ld $20, 16($sp) ! 993: ld $22, 24($sp) ! 994: ld $30, 32($sp) ! 995: addu $sp, 168 ! 996: j $31 ! 997: .end p_dmul ! 998: #endif ! 999: ! 1000: #if defined(MIPSEB) && !defined(MIPSEL) ! 1001: .verstamp 2 10 ! 1002: .extern global_precision 2 ! 1003: .text ! 1004: .align 2 ! 1005: .file 2 "ndmulprotoEB.c" ! 1006: .globl p_dmul ! 1007: .loc 2 69 ! 1008: # 69 { ! 1009: .ent p_dmul 2 ! 1010: p_dmul: ! 1011: .option O2 ! 1012: subu $sp, 168 ! 1013: sd $30, 32($sp) ! 1014: sd $22, 24($sp) ! 1015: sd $20, 16($sp) ! 1016: sd $18, 8($sp) ! 1017: sd $16, 0($sp) ! 1018: .mask 0xC0FF0000, -132 ! 1019: .frame $sp, 168, $31 ! 1020: sw $5, 172($sp) ! 1021: sw $6, 176($sp) ! 1022: .loc 2 76 ! 1023: # 76 preca = global_precision; ! 1024: lh $14, global_precision ! 1025: sw $14, 164($sp) ! 1026: .loc 2 77 ! 1027: # 77 pp=msbptr(multiplicand,preca); ! 1028: .loc 2 78 ! 1029: # 78 while(*post_lowerunit(pp) == 0 && preca > 0) preca--; ! 1030: lw $15, 172($sp) ! 1031: lw $11, 0($15) ! 1032: addu $20, $15, 4 ! 1033: bne $11, 0, $33 ! 1034: ble $14, 0, $33 ! 1035: $32: ! 1036: lw $24, 164($sp) ! 1037: addu $25, $24, -1 ! 1038: sw $25, 164($sp) ! 1039: lw $11, 0($20) ! 1040: addu $20, $20, 4 ! 1041: bne $11, 0, $33 ! 1042: bgt $25, 0, $32 ! 1043: $33: ! 1044: .loc 2 80 ! 1045: # 79 ! 1046: # 80 precb = global_precision; ! 1047: lh $15, global_precision ! 1048: sw $15, 160($sp) ! 1049: .loc 2 81 ! 1050: # 81 pp = msbptr(multiplier,precb); ! 1051: .loc 2 82 ! 1052: # 82 while(*post_lowerunit(pp) == 0 && precb > 0) precb--; ! 1053: lw $14, 176($sp) ! 1054: lw $11, 0($14) ! 1055: addu $20, $14, 4 ! 1056: bne $11, 0, $35 ! 1057: ble $15, 0, $35 ! 1058: $34: ! 1059: lw $24, 160($sp) ! 1060: addu $25, $24, -1 ! 1061: sw $25, 160($sp) ! 1062: lw $11, 0($20) ! 1063: addu $20, $20, 4 ! 1064: bne $11, 0, $35 ! 1065: bgt $25, 0, $34 ! 1066: $35: ! 1067: .loc 2 84 ! 1068: # 83 ! 1069: # 84 prec2 = global_precision<<1; ! 1070: lh $3, global_precision ! 1071: sll $3, $3, 1 ! 1072: move $2, $3 ! 1073: .loc 2 86 ! 1074: # 85 ! 1075: # 86 pp = msbptr(prod,prec2); ! 1076: move $20, $4 ! 1077: .loc 2 87 ! 1078: # 87 for (i= preca+precb; i < prec2 ; i++) { ! 1079: lw $14, 164($sp) ! 1080: lw $15, 160($sp) ! 1081: addu $24, $14, $15 ! 1082: sw $24, 72($sp) ! 1083: move $21, $24 ! 1084: bge $24, $3, $37 ! 1085: $36: ! 1086: .loc 2 88 ! 1087: # 88 *post_lowerunit(pp) = 0; ! 1088: sw $0, 0($20) ! 1089: addu $20, $20, 4 ! 1090: .loc 2 89 ! 1091: # 89 } ! 1092: .loc 2 89 ! 1093: addu $21, $21, 1 ! 1094: blt $21, $2, $36 ! 1095: $37: ! 1096: .loc 2 90 ! 1097: # 90 if (preca == 0 || precb == 0) { ! 1098: lw $25, 164($sp) ! 1099: beq $25, 0, $38 ! 1100: lw $14, 160($sp) ! 1101: bne $14, 0, $41 ! 1102: $38: ! 1103: .loc 2 91 ! 1104: # 91 pp = lsbptr(prod,prec2); ! 1105: mul $15, $2, 4 ! 1106: addu $20, $4, $15 ! 1107: addu $20, $20, -4 ! 1108: .loc 2 92 ! 1109: # 92 for (i=0; i < preca + precb; i++) ! 1110: move $21, $0 ! 1111: lw $24, 72($sp) ! 1112: ble $24, 0, $61 ! 1113: and $2, $24, 3 ! 1114: beq $2, 0, $40 ! 1115: $39: ! 1116: sw $0, 0($20) ! 1117: addu $20, $20, -4 ! 1118: addu $21, $21, 1 ! 1119: bne $2, $21, $39 ! 1120: lw $25, 72($sp) ! 1121: beq $21, $25, $61 ! 1122: $40: ! 1123: .loc 2 93 ! 1124: # 93 *(post_higherunit(pp)) = 0; ! 1125: sw $0, 0($20) ! 1126: addu $20, $20, -4 ! 1127: sw $0, 0($20) ! 1128: addu $20, $20, -4 ! 1129: sw $0, 0($20) ! 1130: addu $20, $20, -4 ! 1131: sw $0, 0($20) ! 1132: addu $20, $20, -4 ! 1133: addu $21, $21, 4 ! 1134: lw $14, 72($sp) ! 1135: bne $21, $14, $40 ! 1136: .loc 2 94 ! 1137: # 94 return; ! 1138: b $61 ! 1139: $41: ! 1140: .loc 2 97 ! 1141: # 95 } ! 1142: # 96 /* Canonicalize length(a) >= length(b) */ ! 1143: # 97 if (preca < precb) { ! 1144: lw $15, 164($sp) ! 1145: lw $24, 160($sp) ! 1146: bge $15, $24, $42 ! 1147: .loc 2 98 ! 1148: # 98 pp = multiplicand; ! 1149: lw $20, 172($sp) ! 1150: .loc 2 99 ! 1151: # 99 multiplicand = multiplier; ! 1152: lw $25, 176($sp) ! 1153: sw $25, 172($sp) ! 1154: .loc 2 100 ! 1155: # 100 multiplier = pp; ! 1156: sw $20, 176($sp) ! 1157: .loc 2 101 ! 1158: # 101 i = preca; ! 1159: move $21, $15 ! 1160: .loc 2 102 ! 1161: # 102 preca = precb; ! 1162: sw $24, 164($sp) ! 1163: .loc 2 103 ! 1164: # 103 precb = i; ! 1165: sw $21, 160($sp) ! 1166: .loc 2 104 ! 1167: # 104 } ! 1168: lw $14, 164($sp) ! 1169: lw $25, 160($sp) ! 1170: addu $15, $14, $25 ! 1171: sw $15, 72($sp) ! 1172: $42: ! 1173: .loc 2 105 ! 1174: # 105 make_lsbptr(multiplicand, global_precision); ! 1175: lh $3, global_precision ! 1176: mul $3, $3, 4 ! 1177: lw $24, 172($sp) ! 1178: addu $14, $24, $3 ! 1179: addu $25, $14, -4 ! 1180: sw $25, 172($sp) ! 1181: .loc 2 106 ! 1182: # 106 make_lsbptr(multiplier, global_precision); ! 1183: lw $15, 176($sp) ! 1184: addu $24, $15, $3 ! 1185: addu $14, $24, -4 ! 1186: sw $14, 176($sp) ! 1187: .loc 2 107 ! 1188: # 107 pp = lsbptr(prod,prec2); ! 1189: mul $15, $2, 4 ! 1190: addu $20, $4, $15 ! 1191: addu $20, $20, -4 ! 1192: .loc 2 108 ! 1193: # 108 ah = 0; ! 1194: move $12, $0 ! 1195: .loc 2 109 ! 1196: # 109 carryl = 0; ! 1197: move $19, $0 ! 1198: .loc 2 110 ! 1199: # 110 carryh =0; ! 1200: move $18, $0 ! 1201: .loc 2 111 ! 1202: # 111 al = 0; ! 1203: .loc 2 114 ! 1204: # 112 ! 1205: # 113 ! 1206: # 114 amin = 0; ! 1207: .loc 2 115 ! 1208: # 115 for (i=0; i < precb; i++) { ! 1209: move $21, $0 ! 1210: lw $24, 160($sp) ! 1211: ble $24, 0, $48 ! 1212: move $23, $25 ! 1213: addu $30, $23, 4 ! 1214: addu $15, $14, -4 ! 1215: sw $15, 56($sp) ! 1216: $43: ! 1217: .loc 2 116 ! 1218: # 116 amax = i; ! 1219: .loc 2 117 ! 1220: # 117 ma = word_index(multiplicand,i -1); ! 1221: move $13, $30 ! 1222: .loc 2 118 ! 1223: # 118 mb = word_index(multiplier,1); ! 1224: lw $16, 56($sp) ! 1225: .loc 2 119 ! 1226: # 119 lmul(word_v(ma,1),word_v(mb,-1),ml, mh); ! 1227: lw $3, 0($23) ! 1228: lw $24, 176($sp) ! 1229: lw $2, 0($24) ! 1230: multu $3,$2 ! 1231: mflo $9 ! 1232: mfhi $10 ! 1233: .loc 2 120 ! 1234: # 120 al = ah+ carryl; ! 1235: addu $4, $12, $19 ! 1236: move $8, $4 ! 1237: .loc 2 121 ! 1238: # 121 carryl = carryh + (al < ah); ! 1239: sltu $25, $4, $12 ! 1240: addu $19, $18, $25 ! 1241: .loc 2 122 ! 1242: # 122 ah = 0; ! 1243: move $12, $0 ! 1244: .loc 2 123 ! 1245: # 123 carryh = 0; ! 1246: move $18, $0 ! 1247: .loc 2 124 ! 1248: # 124 j = amax - amin; ! 1249: move $5, $21 ! 1250: move $31, $5 ! 1251: .loc 2 125 ! 1252: # 125 k = j & 3; ! 1253: .loc 2 126 ! 1254: # 126 while (k--) { ! 1255: and $6, $5, 3 ! 1256: addu $17, $6, -1 ! 1257: beq $6, $0, $45 ! 1258: $44: ! 1259: .loc 2 127 ! 1260: # 127 lmul( *ma, *mb, nml, nmh); ! 1261: lw $2, 0($13) ! 1262: lw $3, 0($16) ! 1263: multu $2, $3 ! 1264: .loc 2 128 ! 1265: # 128 al += ml; ! 1266: addu $8, $8, $9 ! 1267: .loc 2 129 ! 1268: # 129 carryl += (al < ml); ! 1269: sltu $14, $8, $9 ! 1270: addu $19, $19, $14 ! 1271: .loc 2 130 ! 1272: # 130 ah += mh; ! 1273: addu $12, $12, $10 ! 1274: .loc 2 131 ! 1275: # 131 carryh += (ah < mh); ! 1276: sltu $15, $12, $10 ! 1277: addu $18, $18, $15 ! 1278: .loc 2 132 ! 1279: # 132 post_lowerunit(ma); ! 1280: addu $13, $13, 4 ! 1281: .loc 2 133 ! 1282: # 133 post_higherunit(mb); ! 1283: addu $16, $16, -4 ! 1284: .loc 2 134 ! 1285: # 134 ml = nml; ! 1286: mflo $9 ! 1287: .loc 2 135 ! 1288: # 135 mh = nmh; ! 1289: mfhi $10 ! 1290: .loc 2 136 ! 1291: # 136 } ! 1292: .loc 2 136 ! 1293: move $11, $17 ! 1294: addu $17, $17, -1 ! 1295: bne $11, 0, $44 ! 1296: $45: ! 1297: .loc 2 137 ! 1298: # 137 k = j >> 2; ! 1299: .loc 2 138 ! 1300: # 138 while (k--) { ! 1301: sra $2, $31, 2 ! 1302: addu $17, $2, -1 ! 1303: beq $2, $0, $47 ! 1304: $46: ! 1305: .loc 2 139 ! 1306: # 139 lmul( word_v(ma,0), word_v(mb,0), nml, nmh); ! 1307: lw $2, 0($13) ! 1308: lw $3, 0($16) ! 1309: multu $2, $3 ! 1310: .loc 2 140 ! 1311: # 140 al += ml; ! 1312: addu $8, $8, $9 ! 1313: .loc 2 141 ! 1314: # 141 carryl += (al < ml); ! 1315: sltu $24, $8, $9 ! 1316: addu $19, $19, $24 ! 1317: .loc 2 142 ! 1318: # 142 ah += mh; ! 1319: addu $12, $12, $10 ! 1320: .loc 2 143 ! 1321: # 143 carryh += (ah < mh); ! 1322: sltu $25, $12, $10 ! 1323: addu $18, $18, $25 ! 1324: .loc 2 144 ! 1325: # 144 ml = nml; ! 1326: mflo $9 ! 1327: .loc 2 145 ! 1328: # 145 mh = nmh; ! 1329: mfhi $10 ! 1330: .loc 2 147 ! 1331: # 146 ! 1332: # 147 lmul( word_v(ma,-1), word_v(mb,1), nml, nmh); ! 1333: lw $4, 4($13) ! 1334: lw $5, -4($16) ! 1335: multu $4, $5 ! 1336: .loc 2 148 ! 1337: # 148 al += ml; ! 1338: addu $8, $8, $9 ! 1339: .loc 2 149 ! 1340: # 149 carryl += (al < ml); ! 1341: sltu $14, $8, $9 ! 1342: addu $19, $19, $14 ! 1343: .loc 2 150 ! 1344: # 150 ah += mh; ! 1345: addu $12, $12, $10 ! 1346: .loc 2 151 ! 1347: # 151 carryh += (ah < mh); ! 1348: sltu $15, $12, $10 ! 1349: addu $18, $18, $15 ! 1350: .loc 2 152 ! 1351: # 152 ml = nml; ! 1352: mflo $9 ! 1353: .loc 2 153 ! 1354: # 153 mh = nmh; ! 1355: mfhi $10 ! 1356: .loc 2 155 ! 1357: # 154 ! 1358: # 155 lmul( word_v(ma,-2), word_v(mb,2), nml, nmh); ! 1359: lw $2, 8($13) ! 1360: lw $3, -8($16) ! 1361: multu $2, $3 ! 1362: .loc 2 156 ! 1363: # 156 al += ml; ! 1364: addu $8, $8, $9 ! 1365: .loc 2 157 ! 1366: # 157 carryl += (al < ml); ! 1367: sltu $24, $8, $9 ! 1368: addu $19, $19, $24 ! 1369: .loc 2 158 ! 1370: # 158 ah += mh; ! 1371: addu $12, $12, $10 ! 1372: .loc 2 159 ! 1373: # 159 carryh += (ah < mh); ! 1374: sltu $25, $12, $10 ! 1375: addu $18, $18, $25 ! 1376: .loc 2 160 ! 1377: # 160 ml = nml; ! 1378: mflo $9 ! 1379: .loc 2 161 ! 1380: # 161 mh = nmh; ! 1381: mfhi $10 ! 1382: .loc 2 163 ! 1383: # 162 ! 1384: # 163 lmul( word_v(ma,-3), word_v(mb,3), nml, nmh); ! 1385: lw $4, 12($13) ! 1386: lw $5, -12($16) ! 1387: multu $4, $5 ! 1388: .loc 2 164 ! 1389: # 164 al += ml; ! 1390: addu $8, $8, $9 ! 1391: .loc 2 165 ! 1392: # 165 carryl += (al < ml); ! 1393: sltu $14, $8, $9 ! 1394: addu $19, $19, $14 ! 1395: .loc 2 166 ! 1396: # 166 ah += mh; ! 1397: addu $12, $12, $10 ! 1398: .loc 2 167 ! 1399: # 167 carryh += (ah < mh); ! 1400: sltu $15, $12, $10 ! 1401: addu $18, $18, $15 ! 1402: .loc 2 168 ! 1403: # 168 ml = nml; ! 1404: mflo $9 ! 1405: .loc 2 169 ! 1406: # 169 mh = nmh; ! 1407: mfhi $10 ! 1408: .loc 2 171 ! 1409: # 170 ! 1410: # 171 nlowerunit(ma,4); nhigherunit(mb,4); ! 1411: addu $13, $13, 16 ! 1412: addu $16, $16, -16 ! 1413: .loc 2 173 ! 1414: # 172 ! 1415: # 173 } ! 1416: .loc 2 173 ! 1417: move $11, $17 ! 1418: addu $17, $17, -1 ! 1419: bne $11, 0, $46 ! 1420: $47: ! 1421: .loc 2 175 ! 1422: # 174 ! 1423: # 175 al += ml; ! 1424: addu $8, $8, $9 ! 1425: .loc 2 176 ! 1426: # 176 carryl += (al < ml); ! 1427: sltu $24, $8, $9 ! 1428: addu $19, $19, $24 ! 1429: .loc 2 177 ! 1430: # 177 *pp = al; ! 1431: sw $8, 0($20) ! 1432: .loc 2 178 ! 1433: # 178 ah += mh; ! 1434: addu $12, $12, $10 ! 1435: .loc 2 179 ! 1436: # 179 carryh += (ah < mh); ! 1437: sltu $25, $12, $10 ! 1438: addu $18, $18, $25 ! 1439: .loc 2 180 ! 1440: # 180 post_higherunit(pp); ! 1441: addu $20, $20, -4 ! 1442: .loc 2 181 ! 1443: # 181 } ! 1444: .loc 2 181 ! 1445: addu $21, $21, 1 ! 1446: addu $23, $23, -4 ! 1447: addu $30, $30, -4 ! 1448: lw $14, 160($sp) ! 1449: bne $21, $14, $43 ! 1450: $48: ! 1451: .loc 2 182 ! 1452: # 182 amax = precb-1; ! 1453: .loc 2 183 ! 1454: # 183 for (i=precb; i < preca; i++) { ! 1455: lw $15, 160($sp) ! 1456: move $21, $15 ! 1457: lw $24, 164($sp) ! 1458: bge $15, $24, $54 ! 1459: negu $22, $21 ! 1460: mul $22, $22, 4 ! 1461: lw $25, 172($sp) ! 1462: addu $23, $25, $22 ! 1463: addu $30, $23, 4 ! 1464: lw $14, 176($sp) ! 1465: addu $25, $14, -4 ! 1466: sw $25, 56($sp) ! 1467: mul $14, $24, -4 ! 1468: sw $14, 52($sp) ! 1469: addu $2, $15, -1 ! 1470: move $31, $2 ! 1471: and $25, $2, 3 ! 1472: sw $25, 44($sp) ! 1473: addu $24, $25, -1 ! 1474: sw $24, 40($sp) ! 1475: $49: ! 1476: .loc 2 184 ! 1477: # 184 ma = word_index( multiplicand,i-1); ! 1478: move $13, $30 ! 1479: .loc 2 185 ! 1480: # 185 mb = word_index(multiplier,1); ! 1481: lw $16, 56($sp) ! 1482: .loc 2 186 ! 1483: # 186 lmul(word_v(ma,1),word_v(mb,-1),ml, mh); ! 1484: lw $3, 0($23) ! 1485: lw $14, 176($sp) ! 1486: lw $2, 0($14) ! 1487: multu $3,$2 ! 1488: mflo $9 ! 1489: mfhi $10 ! 1490: .loc 2 187 ! 1491: # 187 al = ah+ carryl; ! 1492: addu $4, $12, $19 ! 1493: move $8, $4 ! 1494: .loc 2 188 ! 1495: # 188 carryl = carryh + (al < ah); ! 1496: sltu $15, $4, $12 ! 1497: addu $19, $18, $15 ! 1498: .loc 2 189 ! 1499: # 189 ah = 0; ! 1500: move $12, $0 ! 1501: .loc 2 190 ! 1502: # 190 carryh = 0; ! 1503: move $18, $0 ! 1504: .loc 2 191 ! 1505: # 191 j = amax - amin; ! 1506: .loc 2 192 ! 1507: # 192 k = j & 3; ! 1508: .loc 2 193 ! 1509: # 193 while (k--) { ! 1510: lw $17, 40($sp) ! 1511: lw $25, 44($sp) ! 1512: beq $25, $0, $51 ! 1513: $50: ! 1514: .loc 2 194 ! 1515: # 194 lmul( *ma, *mb, nml, nmh); ! 1516: lw $2, 0($13) ! 1517: lw $3, 0($16) ! 1518: multu $2, $3 ! 1519: .loc 2 195 ! 1520: # 195 al += ml; ! 1521: addu $8, $8, $9 ! 1522: .loc 2 196 ! 1523: # 196 carryl += (al < ml); ! 1524: sltu $24, $8, $9 ! 1525: addu $19, $19, $24 ! 1526: .loc 2 197 ! 1527: # 197 ah += mh; ! 1528: addu $12, $12, $10 ! 1529: .loc 2 198 ! 1530: # 198 carryh += (ah < mh); ! 1531: sltu $14, $12, $10 ! 1532: addu $18, $18, $14 ! 1533: .loc 2 199 ! 1534: # 199 post_lowerunit(ma); ! 1535: addu $13, $13, 4 ! 1536: .loc 2 200 ! 1537: # 200 post_higherunit(mb); ! 1538: addu $16, $16, -4 ! 1539: .loc 2 201 ! 1540: # 201 ml = nml; ! 1541: mflo $9 ! 1542: .loc 2 202 ! 1543: # 202 mh = nmh; ! 1544: mfhi $10 ! 1545: .loc 2 203 ! 1546: # 203 } ! 1547: .loc 2 203 ! 1548: move $11, $17 ! 1549: addu $17, $17, -1 ! 1550: bne $11, 0, $50 ! 1551: $51: ! 1552: .loc 2 204 ! 1553: # 204 k = j >> 2; ! 1554: .loc 2 205 ! 1555: # 205 while (k--) { ! 1556: sra $2, $31, 2 ! 1557: addu $17, $2, -1 ! 1558: beq $2, $0, $53 ! 1559: $52: ! 1560: .loc 2 206 ! 1561: # 206 lmul( word_v(ma,0), word_v(mb,0), nml, nmh); ! 1562: lw $2, 0($13) ! 1563: lw $3, 0($16) ! 1564: multu $2, $3 ! 1565: .loc 2 207 ! 1566: # 207 al += ml; ! 1567: addu $8, $8, $9 ! 1568: .loc 2 208 ! 1569: # 208 carryl += (al < ml); ! 1570: sltu $15, $8, $9 ! 1571: addu $19, $19, $15 ! 1572: .loc 2 209 ! 1573: # 209 ah += mh; ! 1574: addu $12, $12, $10 ! 1575: .loc 2 210 ! 1576: # 210 carryh += (ah < mh); ! 1577: sltu $25, $12, $10 ! 1578: addu $18, $18, $25 ! 1579: .loc 2 211 ! 1580: # 211 ml = nml; ! 1581: mflo $9 ! 1582: .loc 2 212 ! 1583: # 212 mh = nmh; ! 1584: mfhi $10 ! 1585: .loc 2 214 ! 1586: # 213 ! 1587: # 214 lmul( word_v(ma,-1), word_v(mb,1), nml, nmh); ! 1588: lw $4, 4($13) ! 1589: lw $5, -4($16) ! 1590: multu $4, $5 ! 1591: .loc 2 215 ! 1592: # 215 al += ml; ! 1593: addu $8, $8, $9 ! 1594: .loc 2 216 ! 1595: # 216 carryl += (al < ml); ! 1596: sltu $24, $8, $9 ! 1597: addu $19, $19, $24 ! 1598: .loc 2 217 ! 1599: # 217 ah += mh; ! 1600: addu $12, $12, $10 ! 1601: .loc 2 218 ! 1602: # 218 carryh += (ah < mh); ! 1603: sltu $14, $12, $10 ! 1604: addu $18, $18, $14 ! 1605: .loc 2 219 ! 1606: # 219 ml = nml; ! 1607: mflo $9 ! 1608: .loc 2 220 ! 1609: # 220 mh = nmh; ! 1610: mfhi $10 ! 1611: .loc 2 222 ! 1612: # 221 ! 1613: # 222 lmul( word_v(ma,-2), word_v(mb,2), nml, nmh); ! 1614: lw $2, 8($13) ! 1615: lw $3, -8($16) ! 1616: multu $2, $3 ! 1617: .loc 2 223 ! 1618: # 223 al += ml; ! 1619: addu $8, $8, $9 ! 1620: .loc 2 224 ! 1621: # 224 carryl += (al < ml); ! 1622: sltu $15, $8, $9 ! 1623: addu $19, $19, $15 ! 1624: .loc 2 225 ! 1625: # 225 ah += mh; ! 1626: addu $12, $12, $10 ! 1627: .loc 2 226 ! 1628: # 226 carryh += (ah < mh); ! 1629: sltu $25, $12, $10 ! 1630: addu $18, $18, $25 ! 1631: .loc 2 227 ! 1632: # 227 ml = nml; ! 1633: mflo $9 ! 1634: .loc 2 228 ! 1635: # 228 mh = nmh; ! 1636: mfhi $10 ! 1637: .loc 2 230 ! 1638: # 229 ! 1639: # 230 lmul( word_v(ma,-3), word_v(mb,3), nml, nmh); ! 1640: lw $4, 12($13) ! 1641: lw $5, -12($16) ! 1642: multu $4, $5 ! 1643: .loc 2 231 ! 1644: # 231 al += ml; ! 1645: addu $8, $8, $9 ! 1646: .loc 2 232 ! 1647: # 232 carryl += (al < ml); ! 1648: sltu $24, $8, $9 ! 1649: addu $19, $19, $24 ! 1650: .loc 2 233 ! 1651: # 233 ah += mh; ! 1652: addu $12, $12, $10 ! 1653: .loc 2 234 ! 1654: # 234 carryh += (ah < mh); ! 1655: sltu $14, $12, $10 ! 1656: addu $18, $18, $14 ! 1657: .loc 2 235 ! 1658: # 235 ml = nml; ! 1659: mflo $9 ! 1660: .loc 2 236 ! 1661: # 236 mh = nmh; ! 1662: mfhi $10 ! 1663: .loc 2 238 ! 1664: # 237 ! 1665: # 238 nlowerunit(ma,4); ! 1666: addu $13, $13, 16 ! 1667: .loc 2 239 ! 1668: # 239 nhigherunit(mb,4); ! 1669: addu $16, $16, -16 ! 1670: .loc 2 240 ! 1671: # 240 } ! 1672: .loc 2 240 ! 1673: move $11, $17 ! 1674: addu $17, $17, -1 ! 1675: bne $11, 0, $52 ! 1676: $53: ! 1677: .loc 2 242 ! 1678: # 241 ! 1679: # 242 al += ml; ! 1680: addu $8, $8, $9 ! 1681: .loc 2 243 ! 1682: # 243 carryl += (al < ml); ! 1683: sltu $15, $8, $9 ! 1684: addu $19, $19, $15 ! 1685: .loc 2 244 ! 1686: # 244 *pp = al; ! 1687: sw $8, 0($20) ! 1688: .loc 2 245 ! 1689: # 245 ah += mh; ! 1690: addu $12, $12, $10 ! 1691: .loc 2 246 ! 1692: # 246 carryh += (ah < mh); ! 1693: sltu $25, $12, $10 ! 1694: addu $18, $18, $25 ! 1695: .loc 2 247 ! 1696: # 247 post_higherunit(pp); ! 1697: addu $20, $20, -4 ! 1698: .loc 2 248 ! 1699: # 248 } ! 1700: .loc 2 248 ! 1701: addu $22, $22, -4 ! 1702: addu $23, $23, -4 ! 1703: addu $30, $30, -4 ! 1704: lw $24, 52($sp) ! 1705: blt $24, $22, $49 ! 1706: $54: ! 1707: .loc 2 249 ! 1708: # 249 amax = precb-1; ! 1709: .loc 2 250 ! 1710: # 250 for (i=preca; i < preca + precb -1; i++) { ! 1711: lw $14, 164($sp) ! 1712: move $21, $14 ! 1713: lw $15, 72($sp) ! 1714: addu $25, $15, -1 ! 1715: sw $25, 68($sp) ! 1716: bge $14, $25, $60 ! 1717: lw $24, 160($sp) ! 1718: addu $15, $24, -1 ! 1719: sw $15, 72($sp) ! 1720: negu $2, $14 ! 1721: lw $25, 172($sp) ! 1722: mul $24, $2, 4 ! 1723: addu $30, $25, $24 ! 1724: addu $15, $30, 8 ! 1725: sw $15, 56($sp) ! 1726: lw $14, 176($sp) ! 1727: addu $25, $2, $21 ! 1728: negu $24, $25 ! 1729: mul $15, $24, 4 ! 1730: addu $22, $14, $15 ! 1731: addu $23, $22, -8 ! 1732: $55: ! 1733: .loc 2 251 ! 1734: # 251 amin = i-preca + 1; ! 1735: .loc 2 252 ! 1736: # 252 ma = word_index(multiplicand,preca-2); ! 1737: lw $13, 56($sp) ! 1738: .loc 2 253 ! 1739: # 253 mb = word_index(multiplier, - preca + 2 +i) ; ! 1740: move $16, $23 ! 1741: .loc 2 254 ! 1742: # 254 lmul(word_v(ma,1),word_v(mb,-1),ml, mh); ! 1743: lw $2, 4($30) ! 1744: lw $3, -4($22) ! 1745: multu $3,$2 ! 1746: mflo $9 ! 1747: mfhi $10 ! 1748: .loc 2 255 ! 1749: # 255 al = ah+ carryl; ! 1750: addu $4, $12, $19 ! 1751: move $8, $4 ! 1752: .loc 2 256 ! 1753: # 256 carryl = carryh + (al < ah); ! 1754: sltu $25, $4, $12 ! 1755: addu $19, $18, $25 ! 1756: .loc 2 257 ! 1757: # 257 ah = 0; ! 1758: move $12, $0 ! 1759: .loc 2 258 ! 1760: # 258 carryh = 0; ! 1761: move $18, $0 ! 1762: .loc 2 259 ! 1763: # 259 j = amax - amin; ! 1764: lw $24, 72($sp) ! 1765: lw $14, 164($sp) ! 1766: subu $15, $21, $14 ! 1767: subu $5, $24, $15 ! 1768: addu $5, $5, -1 ! 1769: move $31, $5 ! 1770: .loc 2 260 ! 1771: # 260 k = j & 3; ! 1772: .loc 2 261 ! 1773: # 261 while (k--) { ! 1774: and $6, $5, 3 ! 1775: addu $17, $6, -1 ! 1776: beq $6, $0, $57 ! 1777: $56: ! 1778: .loc 2 262 ! 1779: # 262 lmul( *ma, *mb, nml, nmh); ! 1780: lw $2, 0($13) ! 1781: lw $3, 0($16) ! 1782: multu $2, $3 ! 1783: .loc 2 263 ! 1784: # 263 al += ml; ! 1785: addu $8, $8, $9 ! 1786: .loc 2 264 ! 1787: # 264 carryl += (al < ml); ! 1788: sltu $25, $8, $9 ! 1789: addu $19, $19, $25 ! 1790: .loc 2 265 ! 1791: # 265 ah += mh; ! 1792: addu $12, $12, $10 ! 1793: .loc 2 266 ! 1794: # 266 carryh += (ah < mh); ! 1795: sltu $14, $12, $10 ! 1796: addu $18, $18, $14 ! 1797: .loc 2 267 ! 1798: # 267 post_lowerunit(ma); ! 1799: addu $13, $13, 4 ! 1800: .loc 2 268 ! 1801: # 268 post_higherunit(mb); ! 1802: addu $16, $16, -4 ! 1803: .loc 2 269 ! 1804: # 269 ml = nml; ! 1805: mflo $9 ! 1806: .loc 2 270 ! 1807: # 270 mh = nmh; ! 1808: mfhi $10 ! 1809: .loc 2 271 ! 1810: # 271 } ! 1811: .loc 2 271 ! 1812: move $11, $17 ! 1813: addu $17, $17, -1 ! 1814: bne $11, 0, $56 ! 1815: $57: ! 1816: .loc 2 272 ! 1817: # 272 k = j >> 2; ! 1818: .loc 2 273 ! 1819: # 273 while (k--) { ! 1820: sra $2, $31, 2 ! 1821: addu $17, $2, -1 ! 1822: beq $2, $0, $59 ! 1823: $58: ! 1824: .loc 2 274 ! 1825: # 274 lmul( word_v(ma,0), word_v(mb,0), nml, nmh); ! 1826: lw $2, 0($13) ! 1827: lw $3, 0($16) ! 1828: multu $2, $3 ! 1829: .loc 2 275 ! 1830: # 275 al += ml; ! 1831: addu $8, $8, $9 ! 1832: .loc 2 276 ! 1833: # 276 carryl += (al < ml); ! 1834: sltu $24, $8, $9 ! 1835: addu $19, $19, $24 ! 1836: .loc 2 277 ! 1837: # 277 ah += mh; ! 1838: addu $12, $12, $10 ! 1839: .loc 2 278 ! 1840: # 278 carryh += (ah < mh); ! 1841: sltu $15, $12, $10 ! 1842: addu $18, $18, $15 ! 1843: .loc 2 279 ! 1844: # 279 ml = nml; ! 1845: mflo $9 ! 1846: .loc 2 280 ! 1847: # 280 mh = nmh; ! 1848: mfhi $10 ! 1849: .loc 2 282 ! 1850: # 281 ! 1851: # 282 lmul( word_v(ma,-1), word_v(mb,1), nml, nmh); ! 1852: lw $4, 4($13) ! 1853: lw $5, -4($16) ! 1854: multu $4, $5 ! 1855: .loc 2 283 ! 1856: # 283 al += ml; ! 1857: addu $8, $8, $9 ! 1858: .loc 2 284 ! 1859: # 284 carryl += (al < ml); ! 1860: sltu $25, $8, $9 ! 1861: addu $19, $19, $25 ! 1862: .loc 2 285 ! 1863: # 285 ah += mh; ! 1864: addu $12, $12, $10 ! 1865: .loc 2 286 ! 1866: # 286 carryh += (ah < mh); ! 1867: sltu $14, $12, $10 ! 1868: addu $18, $18, $14 ! 1869: .loc 2 287 ! 1870: # 287 ml = nml; ! 1871: mflo $9 ! 1872: .loc 2 288 ! 1873: # 288 mh = nmh; ! 1874: mfhi $10 ! 1875: .loc 2 290 ! 1876: # 289 ! 1877: # 290 lmul( word_v(ma,-2), word_v(mb,2), nml, nmh); ! 1878: lw $2, 8($13) ! 1879: lw $3, -8($16) ! 1880: multu $2, $3 ! 1881: .loc 2 291 ! 1882: # 291 al += ml; ! 1883: addu $8, $8, $9 ! 1884: .loc 2 292 ! 1885: # 292 carryl += (al < ml); ! 1886: sltu $24, $8, $9 ! 1887: addu $19, $19, $24 ! 1888: .loc 2 293 ! 1889: # 293 ah += mh; ! 1890: addu $12, $12, $10 ! 1891: .loc 2 294 ! 1892: # 294 carryh += (ah < mh); ! 1893: sltu $15, $12, $10 ! 1894: addu $18, $18, $15 ! 1895: .loc 2 295 ! 1896: # 295 ml = nml; ! 1897: mflo $9 ! 1898: .loc 2 296 ! 1899: # 296 mh = nmh; ! 1900: mfhi $10 ! 1901: .loc 2 298 ! 1902: # 297 ! 1903: # 298 lmul( word_v(ma,-3), word_v(mb,3), nml, nmh); ! 1904: lw $4, 12($13) ! 1905: lw $5, -12($16) ! 1906: multu $4, $5 ! 1907: .loc 2 299 ! 1908: # 299 al += ml; ! 1909: addu $8, $8, $9 ! 1910: .loc 2 300 ! 1911: # 300 carryl += (al < ml); ! 1912: sltu $25, $8, $9 ! 1913: addu $19, $19, $25 ! 1914: .loc 2 301 ! 1915: # 301 ah += mh; ! 1916: addu $12, $12, $10 ! 1917: .loc 2 302 ! 1918: # 302 carryh += (ah < mh); ! 1919: sltu $14, $12, $10 ! 1920: addu $18, $18, $14 ! 1921: .loc 2 303 ! 1922: # 303 ml = nml; ! 1923: mflo $9 ! 1924: .loc 2 304 ! 1925: # 304 mh = nmh; ! 1926: mfhi $10 ! 1927: .loc 2 306 ! 1928: # 305 ! 1929: # 306 nlowerunit(ma,4); ! 1930: addu $13, $13, 16 ! 1931: .loc 2 307 ! 1932: # 307 nhigherunit(mb,4); ! 1933: addu $16, $16, -16 ! 1934: .loc 2 308 ! 1935: # 308 } ! 1936: .loc 2 308 ! 1937: move $11, $17 ! 1938: addu $17, $17, -1 ! 1939: bne $11, 0, $58 ! 1940: $59: ! 1941: .loc 2 310 ! 1942: # 309 ! 1943: # 310 al += ml; ! 1944: addu $8, $8, $9 ! 1945: .loc 2 311 ! 1946: # 311 carryl += (al < ml); ! 1947: sltu $24, $8, $9 ! 1948: addu $19, $19, $24 ! 1949: .loc 2 312 ! 1950: # 312 *pp = al; ! 1951: sw $8, 0($20) ! 1952: .loc 2 313 ! 1953: # 313 ah += mh; ! 1954: addu $12, $12, $10 ! 1955: .loc 2 314 ! 1956: # 314 carryh += (ah < mh); ! 1957: sltu $15, $12, $10 ! 1958: addu $18, $18, $15 ! 1959: .loc 2 315 ! 1960: # 315 post_higherunit(pp); ! 1961: addu $20, $20, -4 ! 1962: .loc 2 316 ! 1963: # 316 } ! 1964: .loc 2 316 ! 1965: addu $21, $21, 1 ! 1966: addu $22, $22, -4 ! 1967: addu $23, $23, -4 ! 1968: lw $25, 68($sp) ! 1969: blt $21, $25, $55 ! 1970: $60: ! 1971: .loc 2 317 ! 1972: # 317 al = ah + carryl; ! 1973: .loc 2 318 ! 1974: # 318 carryh += (al < ah); ! 1975: .loc 2 319 ! 1976: # 319 *pp = al; ! 1977: addu $14, $12, $19 ! 1978: sw $14, 0($20) ! 1979: .loc 2 320 ! 1980: # 320 } ! 1981: $61: ! 1982: ld $16, 0($sp) ! 1983: ld $18, 8($sp) ! 1984: ld $20, 16($sp) ! 1985: ld $22, 24($sp) ! 1986: ld $30, 32($sp) ! 1987: addu $sp, 168 ! 1988: j $31 ! 1989: .end p_dmul ! 1990: #endif /* MIPSEB */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.