1 #include "l.h" 2 3 long OFFSET; 4 /* 5 long BADOFFSET = -1; 6 7 if(OFFSET <= BADOFFSET && OFFSET+4 > BADOFFSET)\ 8 abort();\ 9 OFFSET += 4;\ 10 11 if(OFFSET == BADOFFSET)\ 12 abort();\ 13 OFFSET++;\ 14 */ 15 16 #define LPUT(l) { \ 17 if (little) { \ 18 LLEPUT(l); \ 19 } else { \ 20 LBEPUT(l); \ 21 } \ 22 } 23 24 #define LLEPUT(c)\ 25 {\ 26 cbp[0] = (c);\ 27 cbp[1] = (c)>>8;\ 28 cbp[2] = (c)>>16;\ 29 cbp[3] = (c)>>24;\ 30 cbp += 4;\ 31 cbc -= 4;\ 32 if(cbc <= 0)\ 33 cflush();\ 34 } 35 36 #define LBEPUT(c)\ 37 {\ 38 cbp[0] = (c)>>24;\ 39 cbp[1] = (c)>>16;\ 40 cbp[2] = (c)>>8;\ 41 cbp[3] = (c);\ 42 cbp += 4;\ 43 cbc -= 4;\ 44 if(cbc <= 0)\ 45 cflush();\ 46 } 47 48 49 #define CPUT(c)\ 50 {\ 51 cbp[0] = (c);\ 52 cbp++;\ 53 cbc--;\ 54 if(cbc <= 0)\ 55 cflush();\ 56 } 57 58 void 59 objput(long l) /* emit long in byte order appropriate to object machine */ 60 { 61 LPUT(l); 62 } 63 64 void 65 lput(long l) /* emit long in big-endian byte order */ 66 { 67 LBEPUT(l); 68 } 69 70 long 71 entryvalue(void) 72 { 73 char *a; 74 Sym *s; 75 76 a = INITENTRY; 77 if(*a >= '0' && *a <= '9') 78 return atolwhex(a); 79 s = lookup(a, 0); 80 if(s->type == 0) 81 return INITTEXT; 82 if(s->type != STEXT && s->type != SLEAF) 83 diag("entry not text: %s", s->name); 84 return s->value; 85 } 86 87 void 88 asmb(void) 89 { 90 Prog *p; 91 long t, etext; 92 Optab *o; 93 94 if(debug['v']) 95 Bprint(&bso, "%5.2f asm\n", cputime()); 96 Bflush(&bso); 97 OFFSET = HEADR; 98 seek(cout, OFFSET, 0); 99 pc = INITTEXT; 100 for(p = firstp; p != P; p = p->link) { 101 if(p->as == ATEXT) { 102 curtext = p; 103 autosize = p->to.offset + 4; 104 } 105 if(p->pc != pc) { 106 diag("phase error %lux sb %lux", 107 p->pc, pc); 108 if(!debug['a']) 109 prasm(curp); 110 pc = p->pc; 111 } 112 curp = p; 113 o = oplook(p); /* could probably avoid this call */ 114 if(asmout(p, o, 0)) { 115 p = p->link; 116 pc += 4; 117 } 118 pc += o->size; 119 } 120 if(debug['a']) 121 Bprint(&bso, "\n"); 122 Bflush(&bso); 123 cflush(); 124 125 etext = INITTEXT + textsize; 126 for(t = pc; t < etext; t += sizeof(buf)-100) { 127 if(etext-t > sizeof(buf)-100) 128 datblk(t, sizeof(buf)-100, 1); 129 else 130 datblk(t, etext-t, 1); 131 } 132 133 Bflush(&bso); 134 cflush(); 135 136 curtext = P; 137 switch(HEADTYPE) { 138 case 0: 139 case 4: 140 OFFSET = rnd(HEADR+textsize, 4096); 141 seek(cout, OFFSET, 0); 142 break; 143 case 1: 144 case 2: 145 case 3: 146 case 5: 147 case 6: 148 OFFSET = HEADR+textsize; 149 seek(cout, OFFSET, 0); 150 break; 151 } 152 for(t = 0; t < datsize; t += sizeof(buf)-100) { 153 if(datsize-t > sizeof(buf)-100) 154 datblk(t, sizeof(buf)-100, 0); 155 else 156 datblk(t, datsize-t, 0); 157 } 158 159 symsize = 0; 160 lcsize = 0; 161 if(!debug['s']) { 162 if(debug['v']) 163 Bprint(&bso, "%5.2f sym\n", cputime()); 164 Bflush(&bso); 165 switch(HEADTYPE) { 166 case 0: 167 case 4: 168 OFFSET = rnd(HEADR+textsize, 4096)+datsize; 169 seek(cout, OFFSET, 0); 170 break; 171 case 3: 172 case 2: 173 case 1: 174 case 5: 175 case 6: 176 OFFSET = HEADR+textsize+datsize; 177 seek(cout, OFFSET, 0); 178 break; 179 } 180 if(!debug['s']) 181 asmsym(); 182 if(debug['v']) 183 Bprint(&bso, "%5.2f pc\n", cputime()); 184 Bflush(&bso); 185 if(!debug['s']) 186 asmlc(); 187 cflush(); 188 } 189 190 if(debug['v']) 191 Bprint(&bso, "%5.2f header\n", cputime()); 192 Bflush(&bso); 193 OFFSET = 0; 194 seek(cout, OFFSET, 0); 195 switch(HEADTYPE) { 196 case 0: 197 lput(0x160L<<16); /* magic and sections */ 198 lput(0L); /* time and date */ 199 lput(rnd(HEADR+textsize, 4096)+datsize); 200 lput(symsize); /* nsyms */ 201 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 202 lput((0413<<16)|0437L); /* magic and version */ 203 lput(rnd(HEADR+textsize, 4096)); /* sizes */ 204 lput(datsize); 205 lput(bsssize); 206 lput(entryvalue()); /* va of entry */ 207 lput(INITTEXT-HEADR); /* va of base of text */ 208 lput(INITDAT); /* va of base of data */ 209 lput(INITDAT+datsize); /* va of base of bss */ 210 lput(~0L); /* gp reg mask */ 211 lput(0L); 212 lput(0L); 213 lput(0L); 214 lput(0L); 215 lput(~0L); /* gp value ?? */ 216 break; 217 case 1: 218 lput(0x160L<<16); /* magic and sections */ 219 lput(0L); /* time and date */ 220 lput(HEADR+textsize+datsize); 221 lput(symsize); /* nsyms */ 222 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 223 224 lput((0407<<16)|0437L); /* magic and version */ 225 lput(textsize); /* sizes */ 226 lput(datsize); 227 lput(bsssize); 228 lput(entryvalue()); /* va of entry */ 229 lput(INITTEXT); /* va of base of text */ 230 lput(INITDAT); /* va of base of data */ 231 lput(INITDAT+datsize); /* va of base of bss */ 232 lput(~0L); /* gp reg mask */ 233 lput(lcsize); 234 lput(0L); 235 lput(0L); 236 lput(0L); 237 lput(~0L); /* gp value ?? */ 238 lput(0L); /* complete mystery */ 239 break; 240 case 2: 241 if (little) 242 t = 24; 243 else 244 t = 16; 245 lput(((((4*t)+0)*t)+7)); /* magic */ 246 lput(textsize); /* sizes */ 247 lput(datsize); 248 lput(bsssize); 249 lput(symsize); /* nsyms */ 250 lput(entryvalue()); /* va of entry */ 251 lput(0L); 252 lput(lcsize); 253 break; 254 case 3: 255 lput((0x160L<<16)|3L); /* magic and sections */ 256 lput(time(0)); /* time and date */ 257 lput(HEADR+textsize+datsize); 258 lput(symsize); /* nsyms */ 259 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 260 261 lput((0407<<16)|0437L); /* magic and version */ 262 lput(textsize); /* sizes */ 263 lput(datsize); 264 lput(bsssize); 265 lput(entryvalue()); /* va of entry */ 266 lput(INITTEXT); /* va of base of text */ 267 lput(INITDAT); /* va of base of data */ 268 lput(INITDAT+datsize); /* va of base of bss */ 269 lput(~0L); /* gp reg mask */ 270 lput(lcsize); 271 lput(0L); 272 lput(0L); 273 lput(0L); 274 lput(~0L); /* gp value ?? */ 275 276 strnput(".text", 8); /* text segment */ 277 lput(INITTEXT); /* address */ 278 lput(INITTEXT); 279 lput(textsize); 280 lput(HEADR); 281 lput(0L); 282 lput(HEADR+textsize+datsize+symsize); 283 lput(lcsize); /* line number size */ 284 lput(0x20L); /* flags */ 285 286 strnput(".data", 8); /* data segment */ 287 lput(INITDAT); /* address */ 288 lput(INITDAT); 289 lput(datsize); 290 lput(HEADR+textsize); 291 lput(0L); 292 lput(0L); 293 lput(0L); 294 lput(0x40L); /* flags */ 295 296 strnput(".bss", 8); /* bss segment */ 297 lput(INITDAT+datsize); /* address */ 298 lput(INITDAT+datsize); 299 lput(bsssize); 300 lput(0L); 301 lput(0L); 302 lput(0L); 303 lput(0L); 304 lput(0x80L); /* flags */ 305 break; 306 case 4: 307 308 lput((0x160L<<16)|3L); /* magic and sections */ 309 lput(time(0)); /* time and date */ 310 lput(rnd(HEADR+textsize, 4096)+datsize); 311 lput(symsize); /* nsyms */ 312 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 313 314 lput((0413<<16)|01012L); /* magic and version */ 315 lput(textsize); /* sizes */ 316 lput(datsize); 317 lput(bsssize); 318 lput(entryvalue()); /* va of entry */ 319 lput(INITTEXT); /* va of base of text */ 320 lput(INITDAT); /* va of base of data */ 321 lput(INITDAT+datsize); /* va of base of bss */ 322 lput(~0L); /* gp reg mask */ 323 lput(lcsize); 324 lput(0L); 325 lput(0L); 326 lput(0L); 327 lput(~0L); /* gp value ?? */ 328 329 strnput(".text", 8); /* text segment */ 330 lput(INITTEXT); /* address */ 331 lput(INITTEXT); 332 lput(textsize); 333 lput(HEADR); 334 lput(0L); 335 lput(HEADR+textsize+datsize+symsize); 336 lput(lcsize); /* line number size */ 337 lput(0x20L); /* flags */ 338 339 strnput(".data", 8); /* data segment */ 340 lput(INITDAT); /* address */ 341 lput(INITDAT); 342 lput(datsize); 343 lput(rnd(HEADR+textsize, 4096)); /* sizes */ 344 lput(0L); 345 lput(0L); 346 lput(0L); 347 lput(0x40L); /* flags */ 348 349 strnput(".bss", 8); /* bss segment */ 350 lput(INITDAT+datsize); /* address */ 351 lput(INITDAT+datsize); 352 lput(bsssize); 353 lput(0L); 354 lput(0L); 355 lput(0L); 356 lput(0L); 357 lput(0x80L); /* flags */ 358 break; 359 case 5: 360 strnput("\177ELF", 4); /* e_ident */ 361 CPUT(1); /* class = 32 bit */ 362 CPUT(2); /* data = MSB */ 363 CPUT(1); /* version = CURRENT */ 364 strnput("", 9); 365 lput((2L<<16)|8L); /* type = EXEC; machine = MIPS */ 366 lput(1L); /* version = CURRENT */ 367 lput(entryvalue()); /* entry vaddr */ 368 lput(52L); /* offset to first phdr */ 369 lput(0L); /* offset to first shdr */ 370 lput(0L); /* flags = MIPS */ 371 lput((52L<<16)|32L); /* Ehdr & Phdr sizes*/ 372 lput((3L<<16)|0L); /* # Phdrs & Shdr size */ 373 lput((0L<<16)|0L); /* # Shdrs & shdr string size */ 374 375 /* TODO: only these few words are in native byte order? */ 376 objput(1L); /* text - type = PT_LOAD */ 377 objput(0L); /* file offset */ 378 objput(INITTEXT-HEADR); /* vaddr */ 379 objput(INITTEXT-HEADR); /* paddr */ 380 objput(HEADR+textsize); /* file size */ 381 objput(HEADR+textsize); /* memory size */ 382 objput(0x05L); /* protections = RX */ 383 objput(0x10000L); /* alignment code?? */ 384 385 lput(1L); /* data - type = PT_LOAD */ 386 lput(HEADR+textsize); /* file offset */ 387 lput(INITDAT); /* vaddr */ 388 lput(INITDAT); /* paddr */ 389 lput(datsize); /* file size */ 390 lput(datsize+bsssize); /* memory size */ 391 lput(0x06L); /* protections = RW */ 392 lput(0x10000L); /* alignment code?? */ 393 394 lput(0L); /* data - type = PT_NULL */ 395 lput(HEADR+textsize+datsize); /* file offset */ 396 lput(0L); 397 lput(0L); 398 lput(symsize); /* symbol table size */ 399 lput(lcsize); /* line number size */ 400 lput(0x04L); /* protections = R */ 401 lput(0x04L); /* alignment code?? */ 402 break; 403 case 6: 404 break; 405 } 406 cflush(); 407 } 408 409 void 410 strnput(char *s, int n) 411 { 412 for(; *s; s++){ 413 CPUT(*s); 414 n--; 415 } 416 for(; n > 0; n--) 417 CPUT(0); 418 } 419 420 void 421 cflush(void) 422 { 423 int n; 424 425 n = sizeof(buf.cbuf) - cbc; 426 if(n) 427 write(cout, buf.cbuf, n); 428 cbp = buf.cbuf; 429 cbc = sizeof(buf.cbuf); 430 } 431 432 void 433 nopstat(char *f, Count *c) 434 { 435 if(c->outof) 436 Bprint(&bso, "%s delay %ld/%ld (%.2f)\n", f, 437 c->outof - c->count, c->outof, 438 (double)(c->outof - c->count)/c->outof); 439 } 440 441 void 442 asmsym(void) 443 { 444 Prog *p; 445 Auto *a; 446 Sym *s; 447 int h; 448 449 s = lookup("etext", 0); 450 if(s->type == STEXT) 451 putsymb(s->name, 'T', s->value, s->version); 452 453 for(h=0; h<NHASH; h++) 454 for(s=hash[h]; s!=S; s=s->link) 455 switch(s->type) { 456 case SCONST: 457 putsymb(s->name, 'D', s->value, s->version); 458 continue; 459 460 case SSTRING: 461 putsymb(s->name, 'T', s->value, s->version); 462 continue; 463 464 case SDATA: 465 putsymb(s->name, 'D', s->value+INITDAT, s->version); 466 continue; 467 468 case SBSS: 469 putsymb(s->name, 'B', s->value+INITDAT, s->version); 470 continue; 471 472 case SFILE: 473 putsymb(s->name, 'f', s->value, s->version); 474 continue; 475 } 476 477 for(p=textp; p!=P; p=p->cond) { 478 s = p->from.sym; 479 if(s->type != STEXT && s->type != SLEAF) 480 continue; 481 482 /* filenames first */ 483 for(a=p->to.autom; a; a=a->link) 484 if(a->type == D_FILE) 485 putsymb(a->asym->name, 'z', a->aoffset, 0); 486 else 487 if(a->type == D_FILE1) 488 putsymb(a->asym->name, 'Z', a->aoffset, 0); 489 490 if(s->type == STEXT) 491 putsymb(s->name, 'T', s->value, s->version); 492 else 493 putsymb(s->name, 'L', s->value, s->version); 494 495 /* frame, auto and param after */ 496 putsymb(".frame", 'm', p->to.offset+4, 0); 497 for(a=p->to.autom; a; a=a->link) 498 if(a->type == D_AUTO) 499 putsymb(a->asym->name, 'a', -a->aoffset, 0); 500 else 501 if(a->type == D_PARAM) 502 putsymb(a->asym->name, 'p', a->aoffset, 0); 503 } 504 if(debug['v'] || debug['n']) 505 Bprint(&bso, "symsize = %lud\n", symsize); 506 Bflush(&bso); 507 } 508 509 void 510 putsymb(char *s, int t, long v, int ver) 511 { 512 int i, f; 513 514 if(t == 'f') 515 s++; 516 LBEPUT(v); 517 if(ver) 518 t += 'a' - 'A'; 519 CPUT(t+0x80); /* 0x80 is variable length */ 520 521 if(t == 'Z' || t == 'z') { 522 CPUT(s[0]); 523 for(i=1; s[i] != 0 || s[i+1] != 0; i += 2) { 524 CPUT(s[i]); 525 CPUT(s[i+1]); 526 } 527 CPUT(0); 528 CPUT(0); 529 i++; 530 } 531 else { 532 for(i=0; s[i]; i++) 533 CPUT(s[i]); 534 CPUT(0); 535 } 536 symsize += 4 + 1 + i + 1; 537 538 if(debug['n']) { 539 if(t == 'z' || t == 'Z') { 540 Bprint(&bso, "%c %.8lux ", t, v); 541 for(i=1; s[i] != 0 || s[i+1] != 0; i+=2) { 542 f = ((s[i]&0xff) << 8) | (s[i+1]&0xff); 543 Bprint(&bso, "/%x", f); 544 } 545 Bprint(&bso, "\n"); 546 return; 547 } 548 if(ver) 549 Bprint(&bso, "%c %.8lux %s<%d>\n", t, v, s, ver); 550 else 551 Bprint(&bso, "%c %.8lux %s\n", t, v, s); 552 } 553 } 554 555 #define MINLC 4 556 void 557 asmlc(void) 558 { 559 long oldpc, oldlc; 560 Prog *p; 561 long v, s; 562 563 oldpc = INITTEXT; 564 oldlc = 0; 565 for(p = firstp; p != P; p = p->link) { 566 if(p->line == oldlc || p->as == ATEXT || p->as == ANOP) { 567 if(p->as == ATEXT) 568 curtext = p; 569 if(debug['L']) 570 Bprint(&bso, "%6lux %P\n", 571 p->pc, p); 572 continue; 573 } 574 if(debug['L']) 575 Bprint(&bso, "\t\t%6ld", lcsize); 576 v = (p->pc - oldpc) / MINLC; 577 while(v) { 578 s = 127; 579 if(v < 127) 580 s = v; 581 CPUT(s+128); /* 129-255 +pc */ 582 if(debug['L']) 583 Bprint(&bso, " pc+%ld*%d(%ld)", s, MINLC, s+128); 584 v -= s; 585 lcsize++; 586 } 587 s = p->line - oldlc; 588 oldlc = p->line; 589 oldpc = p->pc + MINLC; 590 if(s > 64 || s < -64) { 591 CPUT(0); /* 0 vv +lc */ 592 CPUT(s>>24); 593 CPUT(s>>16); 594 CPUT(s>>8); 595 CPUT(s); 596 if(debug['L']) { 597 if(s > 0) 598 Bprint(&bso, " lc+%ld(%d,%ld)\n", 599 s, 0, s); 600 else 601 Bprint(&bso, " lc%ld(%d,%ld)\n", 602 s, 0, s); 603 Bprint(&bso, "%6lux %P\n", 604 p->pc, p); 605 } 606 lcsize += 5; 607 continue; 608 } 609 if(s > 0) { 610 CPUT(0+s); /* 1-64 +lc */ 611 if(debug['L']) { 612 Bprint(&bso, " lc+%ld(%ld)\n", s, 0+s); 613 Bprint(&bso, "%6lux %P\n", 614 p->pc, p); 615 } 616 } else { 617 CPUT(64-s); /* 65-128 -lc */ 618 if(debug['L']) { 619 Bprint(&bso, " lc%ld(%ld)\n", s, 64-s); 620 Bprint(&bso, "%6lux %P\n", 621 p->pc, p); 622 } 623 } 624 lcsize++; 625 } 626 while(lcsize & 1) { 627 s = 129; 628 CPUT(s); 629 lcsize++; 630 } 631 if(debug['v'] || debug['L']) 632 Bprint(&bso, "lcsize = %ld\n", lcsize); 633 Bflush(&bso); 634 } 635 636 void 637 datblk(long s, long n, int str) 638 { 639 Prog *p; 640 char *cast; 641 long l, fl, j, d; 642 int i, c; 643 644 memset(buf.dbuf, 0, n+100); 645 for(p = datap; p != P; p = p->link) { 646 curp = p; 647 if(str != (p->from.sym->type == SSTRING)) 648 continue; 649 l = p->from.sym->value + p->from.offset - s; 650 c = p->reg; 651 i = 0; 652 if(l < 0) { 653 if(l+c <= 0) 654 continue; 655 while(l < 0) { 656 l++; 657 i++; 658 } 659 } 660 if(l >= n) 661 continue; 662 if(p->as != AINIT && p->as != ADYNT) { 663 for(j=l+(c-i)-1; j>=l; j--) 664 if(buf.dbuf[j]) { 665 print("%P\n", p); 666 diag("multiple initialization"); 667 break; 668 } 669 } 670 switch(p->to.type) { 671 default: 672 diag("unknown mode in initialization\n%P", p); 673 break; 674 675 case D_FCONST: 676 switch(c) { 677 default: 678 case 4: 679 fl = ieeedtof(p->to.ieee); 680 cast = (char*)&fl; 681 for(; i<c; i++) { 682 buf.dbuf[l] = cast[fnuxi8[i+4]]; 683 l++; 684 } 685 break; 686 case 8: 687 cast = (char*)p->to.ieee; 688 for(; i<c; i++) { 689 buf.dbuf[l] = cast[fnuxi8[i]]; 690 l++; 691 } 692 break; 693 } 694 break; 695 696 case D_SCONST: 697 for(; i<c; i++) { 698 buf.dbuf[l] = p->to.sval[i]; 699 l++; 700 } 701 break; 702 703 case D_CONST: 704 d = p->to.offset; 705 if(p->to.sym) { 706 switch(p->to.sym->type) { 707 case STEXT: 708 case SLEAF: 709 case SSTRING: 710 d += p->to.sym->value; 711 break; 712 case SDATA: 713 case SBSS: 714 d += p->to.sym->value + INITDAT; 715 break; 716 } 717 } 718 cast = (char*)&d; 719 switch(c) { 720 default: 721 diag("bad nuxi %d %d\n%P", c, i, curp); 722 break; 723 case 1: 724 for(; i<c; i++) { 725 buf.dbuf[l] = cast[inuxi1[i]]; 726 l++; 727 } 728 break; 729 case 2: 730 for(; i<c; i++) { 731 buf.dbuf[l] = cast[inuxi2[i]]; 732 l++; 733 } 734 break; 735 case 4: 736 for(; i<c; i++) { 737 buf.dbuf[l] = cast[inuxi4[i]]; 738 l++; 739 } 740 break; 741 } 742 break; 743 } 744 } 745 write(cout, buf.dbuf, n); 746 } 747 748 #define OP_RRR(op,r1,r2,r3)\ 749 (op|(((r1)&31L)<<16)|(((r2)&31L)<<21)|(((r3)&31L)<<11)) 750 #define OP_IRR(op,i,r2,r3)\ 751 (op|((i)&0xffffL)|(((r2)&31L)<<21)|(((r3)&31L)<<16)) 752 #define OP_SRR(op,s,r2,r3)\ 753 (op|(((s)&31L)<<6)|(((r2)&31L)<<16)|(((r3)&31L)<<11)) 754 #define OP_FRRR(op,r1,r2,r3)\ 755 (op|(((r1)&31L)<<16)|(((r2)&31L)<<11)|(((r3)&31L)<<6)) 756 #define OP_JMP(op,i)\ 757 ((op)|((i)&0x3ffffffL)) 758 759 #define OP(x,y)\ 760 (((x)<<3)|((y)<<0)) 761 #define SP(x,y)\ 762 (((x)<<29)|((y)<<26)) 763 #define BCOND(x,y)\ 764 (((x)<<19)|((y)<<16)) 765 #define MMU(x,y)\ 766 (SP(2,0)|(16<<21)|((x)<<3)|((y)<<0)) 767 #define FPF(x,y)\ 768 (SP(2,1)|(16<<21)|((x)<<3)|((y)<<0)) 769 #define FPD(x,y)\ 770 (SP(2,1)|(17<<21)|((x)<<3)|((y)<<0)) 771 #define FPW(x,y)\ 772 (SP(2,1)|(20<<21)|((x)<<3)|((y)<<0)) 773 774 int vshift(int); 775 776 int 777 asmout(Prog *p, Optab *o, int aflag) 778 { 779 long o1, o2, o3, o4, o5, o6, o7, v; 780 Prog *ct; 781 int r, a; 782 783 o1 = 0; 784 o2 = 0; 785 o3 = 0; 786 o4 = 0; 787 o5 = 0; 788 o6 = 0; 789 o7 = 0; 790 switch(o->type) { 791 default: 792 diag("unknown type %d", o->type); 793 if(!debug['a']) 794 prasm(p); 795 break; 796 797 case 0: /* pseudo ops */ 798 if(aflag) { 799 if(p->link) { 800 if(p->as == ATEXT) { 801 ct = curtext; 802 o2 = autosize; 803 curtext = p; 804 autosize = p->to.offset + 4; 805 o1 = asmout(p->link, oplook(p->link), aflag); 806 curtext = ct; 807 autosize = o2; 808 } else 809 o1 = asmout(p->link, oplook(p->link), aflag); 810 } 811 return o1; 812 } 813 break; 814 815 case 1: /* mov[v] r1,r2 ==> OR r1,r0,r2 */ 816 o1 = OP_RRR(oprrr(AOR), p->from.reg, REGZERO, p->to.reg); 817 break; 818 819 case 2: /* add/sub r1,[r2],r3 */ 820 r = p->reg; 821 if(r == NREG) 822 r = p->to.reg; 823 o1 = OP_RRR(oprrr(p->as), p->from.reg, r, p->to.reg); 824 break; 825 826 case 3: /* mov $soreg, r ==> or/add $i,o,r */ 827 v = regoff(&p->from); 828 r = p->from.reg; 829 if(r == NREG) 830 r = o->param; 831 a = AADDU; 832 if(o->a1 == C_ANDCON) 833 a = AOR; 834 o1 = OP_IRR(opirr(a), v, r, p->to.reg); 835 break; 836 837 case 4: /* add $scon,[r1],r2 */ 838 v = regoff(&p->from); 839 r = p->reg; 840 if(r == NREG) 841 r = p->to.reg; 842 o1 = OP_IRR(opirr(p->as), v, r, p->to.reg); 843 break; 844 845 case 5: /* syscall */ 846 if(aflag) 847 return 0; 848 o1 = oprrr(p->as); 849 break; 850 851 case 6: /* beq r1,[r2],sbra */ 852 if(aflag) 853 return 0; 854 if(p->cond == P) 855 v = -4 >> 2; 856 else 857 v = (p->cond->pc - pc-4) >> 2; 858 if(((v << 16) >> 16) != v) 859 diag("short branch too far: %d\n%P", v, p); 860 o1 = OP_IRR(opirr(p->as), v, p->from.reg, p->reg); 861 break; 862 863 case 7: /* mov r, soreg ==> sw o(r) */ 864 r = p->to.reg; 865 if(r == NREG) 866 r = o->param; 867 v = regoff(&p->to); 868 o1 = OP_IRR(opirr(p->as), v, r, p->from.reg); 869 break; 870 871 case 8: /* mov soreg, r ==> lw o(r) */ 872 r = p->from.reg; 873 if(r == NREG) 874 r = o->param; 875 v = regoff(&p->from); 876 o1 = OP_IRR(opirr(p->as+ALAST), v, r, p->to.reg); 877 break; 878 879 case 9: /* asl r1,[r2],r3 */ 880 r = p->reg; 881 if(r == NREG) 882 r = p->to.reg; 883 o1 = OP_RRR(oprrr(p->as), r, p->from.reg, p->to.reg); 884 break; 885 886 case 10: /* add $con,[r1],r2 ==> mov $con,t; add t,[r1],r2 */ 887 v = regoff(&p->from); 888 r = AOR; 889 if(v < 0) 890 r = AADDU; 891 o1 = OP_IRR(opirr(r), v, 0, REGTMP); 892 r = p->reg; 893 if(r == NREG) 894 r = p->to.reg; 895 o2 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg); 896 break; 897 898 case 11: /* jmp lbra */ 899 if(aflag) 900 return 0; 901 if(p->cond == P) 902 v = p->pc >> 2; 903 else 904 v = p->cond->pc >> 2; 905 o1 = OP_JMP(opirr(p->as), v); 906 if(!debug['Y'] && p->link && p->cond && isnop(p->link)) { 907 nop.branch.count--; 908 nop.branch.outof--; 909 nop.jump.outof++; 910 o2 = asmout(p->cond, oplook(p->cond), 1); 911 if(o2) { 912 o1 += 1; 913 if(debug['a']) 914 Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", 915 p->pc, o1, o2, p); 916 LPUT(o1); 917 LPUT(o2); 918 return 1; 919 } 920 } 921 break; 922 923 case 12: /* movbs r,r */ 924 v = 16; 925 if(p->as == AMOVB) 926 v = 24; 927 o1 = OP_SRR(opirr(ASLL), v, p->from.reg, p->to.reg); 928 o2 = OP_SRR(opirr(ASRA), v, p->to.reg, p->to.reg); 929 break; 930 931 case 13: /* movbu r,r */ 932 if(p->as == AMOVBU) 933 o1 = OP_IRR(opirr(AAND), 0xffL, p->from.reg, p->to.reg); 934 else 935 o1 = OP_IRR(opirr(AAND), 0xffffL, p->from.reg, p->to.reg); 936 break; 937 938 case 16: /* sll $c,[r1],r2 */ 939 v = regoff(&p->from); 940 r = p->reg; 941 if(r == NREG) 942 r = p->to.reg; 943 944 /* OP_SRR will use only the low 5 bits of the shift value */ 945 if(v >= 32 && vshift(p->as)) 946 o1 = OP_SRR(opirr(p->as+ALAST), v-32, r, p->to.reg); 947 else 948 o1 = OP_SRR(opirr(p->as), v, r, p->to.reg); 949 break; 950 951 case 18: /* jmp [r1],0(r2) */ 952 if(aflag) 953 return 0; 954 r = p->reg; 955 if(r == NREG) 956 r = o->param; 957 o1 = OP_RRR(oprrr(p->as), 0, p->to.reg, r); 958 break; 959 960 case 19: /* mov $lcon,r ==> lu+or */ 961 v = regoff(&p->from); 962 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, p->to.reg); 963 o2 = OP_IRR(opirr(AOR), v, p->to.reg, p->to.reg); 964 break; 965 966 case 20: /* mov lohi,r */ 967 r = OP(2,0); /* mfhi */ 968 if(p->from.type == D_LO) 969 r = OP(2,2); /* mflo */ 970 o1 = OP_RRR(r, REGZERO, REGZERO, p->to.reg); 971 break; 972 973 case 21: /* mov r,lohi */ 974 r = OP(2,1); /* mthi */ 975 if(p->to.type == D_LO) 976 r = OP(2,3); /* mtlo */ 977 o1 = OP_RRR(r, REGZERO, p->from.reg, REGZERO); 978 break; 979 980 case 22: /* mul r1,r2 */ 981 o1 = OP_RRR(oprrr(p->as), p->from.reg, p->reg, REGZERO); 982 break; 983 984 case 23: /* add $lcon,r1,r2 ==> lu+or+add */ 985 v = regoff(&p->from); 986 if(p->to.reg == REGTMP || p->reg == REGTMP) 987 diag("cant synthesize large constant\n%P", p); 988 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 989 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 990 r = p->reg; 991 if(r == NREG) 992 r = p->to.reg; 993 o3 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg); 994 break; 995 996 case 24: /* mov $ucon,,r ==> lu r */ 997 v = regoff(&p->from); 998 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, p->to.reg); 999 break; 1000 1001 case 25: /* add/and $ucon,[r1],r2 ==> lu $con,t; add t,[r1],r2 */ 1002 v = regoff(&p->from); 1003 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1004 r = p->reg; 1005 if(r == NREG) 1006 r = p->to.reg; 1007 o2 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg); 1008 break; 1009 1010 case 26: /* mov $lsext/auto/oreg,,r2 ==> lu+or+add */ 1011 v = regoff(&p->from); 1012 if(p->to.reg == REGTMP) 1013 diag("cant synthesize large constant\n%P", p); 1014 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1015 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1016 r = p->from.reg; 1017 if(r == NREG) 1018 r = o->param; 1019 o3 = OP_RRR(oprrr(AADDU), REGTMP, r, p->to.reg); 1020 break; 1021 1022 case 27: /* mov [sl]ext/auto/oreg,fr ==> lwc1 o(r) */ 1023 r = p->from.reg; 1024 if(r == NREG) 1025 r = o->param; 1026 v = regoff(&p->from); 1027 switch(o->size) { 1028 case 20: 1029 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1030 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1031 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1032 o4 = OP_IRR(opirr(AMOVF+ALAST), 0, REGTMP, p->to.reg+1); 1033 o5 = OP_IRR(opirr(AMOVF+ALAST), 4, REGTMP, p->to.reg); 1034 break; 1035 case 16: 1036 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1037 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1038 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1039 o4 = OP_IRR(opirr(AMOVF+ALAST), 0, REGTMP, p->to.reg); 1040 break; 1041 case 8: 1042 o1 = OP_IRR(opirr(AMOVF+ALAST), v, r, p->to.reg+1); 1043 o2 = OP_IRR(opirr(AMOVF+ALAST), v+4, r, p->to.reg); 1044 break; 1045 case 4: 1046 o1 = OP_IRR(opirr(AMOVF+ALAST), v, r, p->to.reg); 1047 break; 1048 } 1049 break; 1050 1051 case 28: /* mov fr,[sl]ext/auto/oreg ==> swc1 o(r) */ 1052 r = p->to.reg; 1053 if(r == NREG) 1054 r = o->param; 1055 v = regoff(&p->to); 1056 switch(o->size) { 1057 case 20: 1058 if(r == REGTMP) 1059 diag("cant synthesize large constant\n%P", p); 1060 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1061 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1062 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1063 o4 = OP_IRR(opirr(AMOVF), 0, REGTMP, p->from.reg+1); 1064 o5 = OP_IRR(opirr(AMOVF), 4, REGTMP, p->from.reg); 1065 break; 1066 case 16: 1067 if(r == REGTMP) 1068 diag("cant synthesize large constant\n%P", p); 1069 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1070 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1071 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1072 o4 = OP_IRR(opirr(AMOVF), 0, REGTMP, p->from.reg); 1073 break; 1074 case 8: 1075 o1 = OP_IRR(opirr(AMOVF), v, r, p->from.reg+1); 1076 o2 = OP_IRR(opirr(AMOVF), v+4, r, p->from.reg); 1077 break; 1078 case 4: 1079 o1 = OP_IRR(opirr(AMOVF), v, r, p->from.reg); 1080 break; 1081 } 1082 break; 1083 1084 case 30: /* movw r,fr */ 1085 r = SP(2,1)|(4<<21); /* mtc1 */ 1086 o1 = OP_RRR(r, p->from.reg, 0, p->to.reg); 1087 break; 1088 1089 case 31: /* movw fr,r */ 1090 r = SP(2,1)|(0<<21); /* mfc1 */ 1091 o1 = OP_RRR(r, p->to.reg, 0, p->from.reg); 1092 break; 1093 1094 case 32: /* fadd fr1,[fr2],fr3 */ 1095 r = p->reg; 1096 if(r == NREG) 1097 o1 = OP_FRRR(oprrr(p->as), p->from.reg, p->to.reg, p->to.reg); 1098 else 1099 o1 = OP_FRRR(oprrr(p->as), p->from.reg, r, p->to.reg); 1100 break; 1101 1102 case 33: /* fabs fr1,fr3 */ 1103 o1 = OP_FRRR(oprrr(p->as), 0, p->from.reg, p->to.reg); 1104 break; 1105 1106 case 34: /* mov $con,fr ==> or/add $i,r,r2 */ 1107 v = regoff(&p->from); 1108 r = AADDU; 1109 if(o->a1 == C_ANDCON) 1110 r = AOR; 1111 o1 = OP_IRR(opirr(r), v, 0, REGTMP); 1112 o2 = OP_RRR(SP(2,1)|(4<<21), REGTMP, 0, p->to.reg); /* mtc1 */ 1113 break; 1114 1115 case 35: /* mov r,lext/luto/oreg ==> sw o(r) */ 1116 /* 1117 * the lowbits of the constant cannot 1118 * be moved into the offset of the load 1119 * because the mips 4000 in 64-bit mode 1120 * does a 64-bit add and it will screw up. 1121 */ 1122 v = regoff(&p->to); 1123 r = p->to.reg; 1124 if(r == NREG) 1125 r = o->param; 1126 if(r == REGTMP) 1127 diag("cant synthesize large constant\n%P", p); 1128 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1129 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1130 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1131 o4 = OP_IRR(opirr(p->as), 0, REGTMP, p->from.reg); 1132 break; 1133 1134 case 36: /* mov lext/lauto/lreg,r ==> lw o(r30) */ 1135 v = regoff(&p->from); 1136 r = p->from.reg; 1137 if(r == NREG) 1138 r = o->param; 1139 if(r == REGTMP) 1140 diag("cant synthesize large constant\n%P", p); 1141 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1142 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1143 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1144 o4 = OP_IRR(opirr(p->as+ALAST), 0, REGTMP, p->to.reg); 1145 break; 1146 1147 case 37: /* movw r,mr */ 1148 r = SP(2,0)|(4<<21); /* mtc0 */ 1149 if(p->as == AMOVV) 1150 r = SP(2,0)|(5<<21); /* dmtc0 */ 1151 o1 = OP_RRR(r, p->from.reg, 0, p->to.reg); 1152 break; 1153 1154 case 38: /* movw mr,r */ 1155 r = SP(2,0)|(0<<21); /* mfc0 */ 1156 if(p->as == AMOVV) 1157 r = SP(2,0)|(1<<21); /* dmfc0 */ 1158 o1 = OP_RRR(r, p->to.reg, 0, p->from.reg); 1159 break; 1160 1161 case 39: /* rfe ==> jmp+rfe */ 1162 if(aflag) 1163 return 0; 1164 o1 = OP_RRR(oprrr(AJMP), 0, p->to.reg, REGZERO); 1165 o2 = oprrr(p->as); 1166 break; 1167 1168 case 40: /* word */ 1169 if(aflag) 1170 return 0; 1171 o1 = regoff(&p->to); 1172 break; 1173 1174 case 41: /* movw r,fcr */ 1175 o1 = OP_RRR(SP(2,1)|(2<<21), REGZERO, 0, p->to.reg); /* mfcc1 */ 1176 o2 = OP_RRR(SP(2,1)|(6<<21), p->from.reg, 0, p->to.reg);/* mtcc1 */ 1177 break; 1178 1179 case 42: /* movw fcr,r */ 1180 o1 = OP_RRR(SP(2,1)|(2<<21), p->to.reg, 0, p->from.reg);/* mfcc1 */ 1181 break; 1182 1183 case 45: /* case r */ 1184 if(p->link == P) 1185 v = p->pc+28; 1186 else 1187 v = p->link->pc; 1188 if(v & (1<<15)) 1189 o1 = OP_IRR(opirr(ALAST), (v>>16)+1, REGZERO, REGTMP); 1190 else 1191 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1192 o2 = OP_SRR(opirr(ASLL), 2, p->from.reg, p->from.reg); 1193 o3 = OP_RRR(oprrr(AADD), p->from.reg, REGTMP, REGTMP); 1194 o4 = OP_IRR(opirr(AMOVW+ALAST), v, REGTMP, REGTMP); 1195 o5 = OP_RRR(oprrr(ANOR), REGZERO, REGZERO, REGZERO); 1196 o6 = OP_RRR(oprrr(AJMP), 0, REGTMP, REGZERO); 1197 o7 = OP_RRR(oprrr(ANOR), REGZERO, REGZERO, REGZERO); 1198 break; 1199 1200 case 46: /* bcase $con,lbra */ 1201 if(p->cond == P) 1202 v = p->pc; 1203 else 1204 v = p->cond->pc; 1205 o1 = v; 1206 break; 1207 } 1208 if(aflag) 1209 return o1; 1210 v = p->pc; 1211 switch(o->size) { 1212 default: 1213 if(debug['a']) 1214 Bprint(&bso, " %.8lux:\t\t%P\n", v, p); 1215 break; 1216 case 4: 1217 if(debug['a']) 1218 Bprint(&bso, " %.8lux: %.8lux\t%P\n", v, o1, p); 1219 LPUT(o1); 1220 break; 1221 case 8: 1222 if(debug['a']) 1223 Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", v, o1, o2, p); 1224 LPUT(o1); 1225 LPUT(o2); 1226 break; 1227 case 12: 1228 if(debug['a']) 1229 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux%P\n", v, o1, o2, o3, p); 1230 LPUT(o1); 1231 LPUT(o2); 1232 LPUT(o3); 1233 break; 1234 case 16: 1235 if(debug['a']) 1236 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux%P\n", 1237 v, o1, o2, o3, o4, p); 1238 LPUT(o1); 1239 LPUT(o2); 1240 LPUT(o3); 1241 LPUT(o4); 1242 break; 1243 case 20: 1244 if(debug['a']) 1245 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux%P\n", 1246 v, o1, o2, o3, o4, o5, p); 1247 LPUT(o1); 1248 LPUT(o2); 1249 LPUT(o3); 1250 LPUT(o4); 1251 LPUT(o5); 1252 break; 1253 1254 case 28: 1255 if(debug['a']) 1256 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux %.8lux %.8lux%P\n", 1257 v, o1, o2, o3, o4, o5, o6, o7, p); 1258 LPUT(o1); 1259 LPUT(o2); 1260 LPUT(o3); 1261 LPUT(o4); 1262 LPUT(o5); 1263 LPUT(o6); 1264 LPUT(o7); 1265 break; 1266 } 1267 return 0; 1268 } 1269 1270 int 1271 isnop(Prog *p) 1272 { 1273 if(p->as != ANOR) 1274 return 0; 1275 if(p->reg != REGZERO && p->reg != NREG) 1276 return 0; 1277 if(p->from.type != D_REG || p->from.reg != REGZERO) 1278 return 0; 1279 if(p->to.type != D_REG || p->to.reg != REGZERO) 1280 return 0; 1281 return 1; 1282 } 1283 1284 long 1285 oprrr(int a) 1286 { 1287 switch(a) { 1288 case AADD: return OP(4,0); 1289 case AADDU: return OP(4,1); 1290 case ASGT: return OP(5,2); 1291 case ASGTU: return OP(5,3); 1292 case AAND: return OP(4,4); 1293 case AOR: return OP(4,5); 1294 case AXOR: return OP(4,6); 1295 case ASUB: return OP(4,2); 1296 case ASUBU: return OP(4,3); 1297 case ANOR: return OP(4,7); 1298 case ASLL: return OP(0,4); 1299 case ASRL: return OP(0,6); 1300 case ASRA: return OP(0,7); 1301 1302 case AREM: 1303 case ADIV: return OP(3,2); 1304 case AREMU: 1305 case ADIVU: return OP(3,3); 1306 case AMUL: return OP(3,0); 1307 case AMULU: return OP(3,1); 1308 1309 case AJMP: return OP(1,0); 1310 case AJAL: return OP(1,1); 1311 1312 case ABREAK: return OP(1,5); 1313 case ASYSCALL: return OP(1,4); 1314 case ATLBP: return MMU(1,0); 1315 case ATLBR: return MMU(0,1); 1316 case ATLBWI: return MMU(0,2); 1317 case ATLBWR: return MMU(0,6); 1318 case ARFE: return MMU(2,0); 1319 1320 case ADIVF: return FPF(0,3); 1321 case ADIVD: return FPD(0,3); 1322 case AMULF: return FPF(0,2); 1323 case AMULD: return FPD(0,2); 1324 case ASUBF: return FPF(0,1); 1325 case ASUBD: return FPD(0,1); 1326 case AADDF: return FPF(0,0); 1327 case AADDD: return FPD(0,0); 1328 1329 case AMOVFW: return FPF(4,4); 1330 case AMOVDW: return FPD(4,4); 1331 case AMOVWF: return FPW(4,0); 1332 case AMOVDF: return FPD(4,0); 1333 case AMOVWD: return FPW(4,1); 1334 case AMOVFD: return FPF(4,1); 1335 case AABSF: return FPF(0,5); 1336 case AABSD: return FPD(0,5); 1337 case AMOVF: return FPF(0,6); 1338 case AMOVD: return FPD(0,6); 1339 case ANEGF: return FPF(0,7); 1340 case ANEGD: return FPD(0,7); 1341 1342 case ACMPEQF: return FPF(6,2); 1343 case ACMPEQD: return FPD(6,2); 1344 case ACMPGTF: return FPF(7,4); 1345 case ACMPGTD: return FPD(7,4); 1346 case ACMPGEF: return FPF(7,6); 1347 case ACMPGED: return FPD(7,6); 1348 1349 case ADIVV: return OP(3,6); 1350 case ADIVVU: return OP(3,7); 1351 case AADDV: return OP(5,4); 1352 case AADDVU: return OP(5,5); 1353 } 1354 diag("bad rrr %d", a); 1355 return 0; 1356 } 1357 1358 long 1359 opirr(int a) 1360 { 1361 switch(a) { 1362 case AADD: return SP(1,0); 1363 case AADDU: return SP(1,1); 1364 case ASGT: return SP(1,2); 1365 case ASGTU: return SP(1,3); 1366 case AAND: return SP(1,4); 1367 case AOR: return SP(1,5); 1368 case AXOR: return SP(1,6); 1369 case ALAST: return SP(1,7); 1370 case ASLL: return OP(0,0); 1371 case ASRL: return OP(0,2); 1372 case ASRA: return OP(0,3); 1373 1374 case AJMP: return SP(0,2); 1375 case AJAL: return SP(0,3); 1376 case ABEQ: return SP(0,4); 1377 case ABNE: return SP(0,5); 1378 1379 case ABGEZ: return SP(0,1)|BCOND(0,1); 1380 case ABGEZAL: return SP(0,1)|BCOND(2,1); 1381 case ABGTZ: return SP(0,7); 1382 case ABLEZ: return SP(0,6); 1383 case ABLTZ: return SP(0,1)|BCOND(0,0); 1384 case ABLTZAL: return SP(0,1)|BCOND(2,0); 1385 1386 case ABFPT: return SP(2,1)|(257<<16); 1387 case ABFPF: return SP(2,1)|(256<<16); 1388 1389 case AMOVB: 1390 case AMOVBU: return SP(5,0); 1391 case AMOVH: 1392 case AMOVHU: return SP(5,1); 1393 case AMOVW: return SP(5,3); 1394 case AMOVV: return SP(7,7); 1395 case AMOVF: return SP(7,1); 1396 case AMOVWL: return SP(5,2); 1397 case AMOVWR: return SP(5,6); 1398 case AMOVVL: return SP(5,4); 1399 case AMOVVR: return SP(5,5); 1400 1401 case ABREAK: return SP(5,7); 1402 1403 case AMOVWL+ALAST: return SP(4,2); 1404 case AMOVWR+ALAST: return SP(4,6); 1405 case AMOVVL+ALAST: return SP(3,2); 1406 case AMOVVR+ALAST: return SP(3,3); 1407 case AMOVB+ALAST: return SP(4,0); 1408 case AMOVBU+ALAST: return SP(4,4); 1409 case AMOVH+ALAST: return SP(4,1); 1410 case AMOVHU+ALAST: return SP(4,5); 1411 case AMOVW+ALAST: return SP(4,3); 1412 case AMOVV+ALAST: return SP(6,7); 1413 case AMOVF+ALAST: return SP(6,1); 1414 1415 case ASLLV: return OP(7,0); 1416 case ASRLV: return OP(7,2); 1417 case ASRAV: return OP(7,3); 1418 case ASLLV+ALAST: return OP(7,4); 1419 case ASRLV+ALAST: return OP(7,6); 1420 case ASRAV+ALAST: return OP(7,7); 1421 1422 case AADDV: return SP(3,0); 1423 case AADDVU: return SP(3,1); 1424 } 1425 diag("bad irr %d", a); 1426 abort(); 1427 return 0; 1428 } 1429 1430 int 1431 vshift(int a) 1432 { 1433 switch(a){ 1434 case ASLLV: return 1; 1435 case ASRLV: return 1; 1436 case ASRAV: return 1; 1437 } 1438 return 0; 1439 } 1440