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 #define HPUT(h) { \ 49 if (little) { \ 50 HLEPUT(h); \ 51 } else { \ 52 HBEPUT(h); \ 53 } \ 54 } 55 56 #define HLEPUT(c)\ 57 {\ 58 cbp[0] = (c);\ 59 cbp[1] = (c)>>8;\ 60 cbp += 2;\ 61 cbc -= 2;\ 62 if(cbc <= 0)\ 63 cflush();\ 64 } 65 66 #define HBEPUT(c)\ 67 {\ 68 cbp[0] = (c)>>8;\ 69 cbp[1] = (c);\ 70 cbp += 2;\ 71 cbc -= 2;\ 72 if(cbc <= 0)\ 73 cflush();\ 74 } 75 76 77 #define CPUT(c)\ 78 {\ 79 cbp[0] = (c);\ 80 cbp++;\ 81 cbc--;\ 82 if(cbc <= 0)\ 83 cflush();\ 84 } 85 86 void 87 objput(long l) /* emit long in byte order appropriate to object machine */ 88 { 89 LPUT(l); 90 } 91 92 void 93 objhput(short s) 94 { 95 HPUT(s); 96 } 97 98 void 99 lput(long l) /* emit long in big-endian byte order */ 100 { 101 LBEPUT(l); 102 } 103 104 long 105 entryvalue(void) 106 { 107 char *a; 108 Sym *s; 109 110 a = INITENTRY; 111 if(*a >= '0' && *a <= '9') 112 return atolwhex(a); 113 s = lookup(a, 0); 114 if(s->type == 0) 115 return INITTEXT; 116 if(s->type != STEXT && s->type != SLEAF) 117 diag("entry not text: %s", s->name); 118 return s->value; 119 } 120 121 void 122 asmb(void) 123 { 124 Prog *p; 125 long t, etext; 126 Optab *o; 127 128 if(debug['v']) 129 Bprint(&bso, "%5.2f asm\n", cputime()); 130 Bflush(&bso); 131 OFFSET = HEADR; 132 seek(cout, OFFSET, 0); 133 pc = INITTEXT; 134 for(p = firstp; p != P; p = p->link) { 135 if(p->as == ATEXT) { 136 curtext = p; 137 autosize = p->to.offset + 4; 138 } 139 if(p->pc != pc) { 140 diag("phase error %lux sb %lux", 141 p->pc, pc); 142 if(!debug['a']) 143 prasm(curp); 144 pc = p->pc; 145 } 146 curp = p; 147 o = oplook(p); /* could probably avoid this call */ 148 if(asmout(p, o, 0)) { 149 p = p->link; 150 pc += 4; 151 } 152 pc += o->size; 153 } 154 if(debug['a']) 155 Bprint(&bso, "\n"); 156 Bflush(&bso); 157 cflush(); 158 159 etext = INITTEXT + textsize; 160 for(t = pc; t < etext; t += sizeof(buf)-100) { 161 if(etext-t > sizeof(buf)-100) 162 datblk(t, sizeof(buf)-100, 1); 163 else 164 datblk(t, etext-t, 1); 165 } 166 167 Bflush(&bso); 168 cflush(); 169 170 curtext = P; 171 switch(HEADTYPE) { 172 case 0: 173 case 4: 174 OFFSET = rnd(HEADR+textsize, 4096); 175 seek(cout, OFFSET, 0); 176 break; 177 case 1: 178 case 2: 179 case 3: 180 case 5: 181 case 6: 182 OFFSET = HEADR+textsize; 183 seek(cout, OFFSET, 0); 184 break; 185 } 186 for(t = 0; t < datsize; t += sizeof(buf)-100) { 187 if(datsize-t > sizeof(buf)-100) 188 datblk(t, sizeof(buf)-100, 0); 189 else 190 datblk(t, datsize-t, 0); 191 } 192 193 symsize = 0; 194 lcsize = 0; 195 if(!debug['s']) { 196 if(debug['v']) 197 Bprint(&bso, "%5.2f sym\n", cputime()); 198 Bflush(&bso); 199 switch(HEADTYPE) { 200 case 0: 201 case 4: 202 OFFSET = rnd(HEADR+textsize, 4096)+datsize; 203 seek(cout, OFFSET, 0); 204 break; 205 case 3: 206 case 2: 207 case 1: 208 case 5: 209 case 6: 210 OFFSET = HEADR+textsize+datsize; 211 seek(cout, OFFSET, 0); 212 break; 213 } 214 if(!debug['s']) 215 asmsym(); 216 if(debug['v']) 217 Bprint(&bso, "%5.2f pc\n", cputime()); 218 Bflush(&bso); 219 if(!debug['s']) 220 asmlc(); 221 cflush(); 222 } 223 224 if(debug['v']) 225 Bprint(&bso, "%5.2f header\n", cputime()); 226 Bflush(&bso); 227 OFFSET = 0; 228 seek(cout, OFFSET, 0); 229 switch(HEADTYPE) { 230 case 0: 231 lput(0x160L<<16); /* magic and sections */ 232 lput(0L); /* time and date */ 233 lput(rnd(HEADR+textsize, 4096)+datsize); 234 lput(symsize); /* nsyms */ 235 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 236 lput((0413<<16)|0437L); /* magic and version */ 237 lput(rnd(HEADR+textsize, 4096)); /* sizes */ 238 lput(datsize); 239 lput(bsssize); 240 lput(entryvalue()); /* va of entry */ 241 lput(INITTEXT-HEADR); /* va of base of text */ 242 lput(INITDAT); /* va of base of data */ 243 lput(INITDAT+datsize); /* va of base of bss */ 244 lput(~0L); /* gp reg mask */ 245 lput(0L); 246 lput(0L); 247 lput(0L); 248 lput(0L); 249 lput(~0L); /* gp value ?? */ 250 break; 251 case 1: 252 lput(0x160L<<16); /* magic and sections */ 253 lput(0L); /* time and date */ 254 lput(HEADR+textsize+datsize); 255 lput(symsize); /* nsyms */ 256 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 257 258 lput((0407<<16)|0437L); /* magic and version */ 259 lput(textsize); /* sizes */ 260 lput(datsize); 261 lput(bsssize); 262 lput(entryvalue()); /* va of entry */ 263 lput(INITTEXT); /* va of base of text */ 264 lput(INITDAT); /* va of base of data */ 265 lput(INITDAT+datsize); /* va of base of bss */ 266 lput(~0L); /* gp reg mask */ 267 lput(lcsize); 268 lput(0L); 269 lput(0L); 270 lput(0L); 271 lput(~0L); /* gp value ?? */ 272 lput(0L); /* complete mystery */ 273 break; 274 case 2: 275 if (little) 276 t = 24; 277 else 278 t = 16; 279 lput(((((4*t)+0)*t)+7)); /* magic */ 280 lput(textsize); /* sizes */ 281 lput(datsize); 282 lput(bsssize); 283 lput(symsize); /* nsyms */ 284 lput(entryvalue()); /* va of entry */ 285 lput(0L); 286 lput(lcsize); 287 break; 288 case 3: 289 lput((0x160L<<16)|3L); /* magic and sections */ 290 lput(time(0)); /* time and date */ 291 lput(HEADR+textsize+datsize); 292 lput(symsize); /* nsyms */ 293 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 294 295 lput((0407<<16)|0437L); /* magic and version */ 296 lput(textsize); /* sizes */ 297 lput(datsize); 298 lput(bsssize); 299 lput(entryvalue()); /* va of entry */ 300 lput(INITTEXT); /* va of base of text */ 301 lput(INITDAT); /* va of base of data */ 302 lput(INITDAT+datsize); /* va of base of bss */ 303 lput(~0L); /* gp reg mask */ 304 lput(lcsize); 305 lput(0L); 306 lput(0L); 307 lput(0L); 308 lput(~0L); /* gp value ?? */ 309 310 strnput(".text", 8); /* text segment */ 311 lput(INITTEXT); /* address */ 312 lput(INITTEXT); 313 lput(textsize); 314 lput(HEADR); 315 lput(0L); 316 lput(HEADR+textsize+datsize+symsize); 317 lput(lcsize); /* line number size */ 318 lput(0x20L); /* flags */ 319 320 strnput(".data", 8); /* data segment */ 321 lput(INITDAT); /* address */ 322 lput(INITDAT); 323 lput(datsize); 324 lput(HEADR+textsize); 325 lput(0L); 326 lput(0L); 327 lput(0L); 328 lput(0x40L); /* flags */ 329 330 strnput(".bss", 8); /* bss segment */ 331 lput(INITDAT+datsize); /* address */ 332 lput(INITDAT+datsize); 333 lput(bsssize); 334 lput(0L); 335 lput(0L); 336 lput(0L); 337 lput(0L); 338 lput(0x80L); /* flags */ 339 break; 340 case 4: 341 342 lput((0x160L<<16)|3L); /* magic and sections */ 343 lput(time(0)); /* time and date */ 344 lput(rnd(HEADR+textsize, 4096)+datsize); 345 lput(symsize); /* nsyms */ 346 lput((0x38L<<16)|7L); /* size of optional hdr and flags */ 347 348 lput((0413<<16)|01012L); /* magic and version */ 349 lput(textsize); /* sizes */ 350 lput(datsize); 351 lput(bsssize); 352 lput(entryvalue()); /* va of entry */ 353 lput(INITTEXT); /* va of base of text */ 354 lput(INITDAT); /* va of base of data */ 355 lput(INITDAT+datsize); /* va of base of bss */ 356 lput(~0L); /* gp reg mask */ 357 lput(lcsize); 358 lput(0L); 359 lput(0L); 360 lput(0L); 361 lput(~0L); /* gp value ?? */ 362 363 strnput(".text", 8); /* text segment */ 364 lput(INITTEXT); /* address */ 365 lput(INITTEXT); 366 lput(textsize); 367 lput(HEADR); 368 lput(0L); 369 lput(HEADR+textsize+datsize+symsize); 370 lput(lcsize); /* line number size */ 371 lput(0x20L); /* flags */ 372 373 strnput(".data", 8); /* data segment */ 374 lput(INITDAT); /* address */ 375 lput(INITDAT); 376 lput(datsize); 377 lput(rnd(HEADR+textsize, 4096)); /* sizes */ 378 lput(0L); 379 lput(0L); 380 lput(0L); 381 lput(0x40L); /* flags */ 382 383 strnput(".bss", 8); /* bss segment */ 384 lput(INITDAT+datsize); /* address */ 385 lput(INITDAT+datsize); 386 lput(bsssize); 387 lput(0L); 388 lput(0L); 389 lput(0L); 390 lput(0L); 391 lput(0x80L); /* flags */ 392 break; 393 case 5: 394 /* first part of ELF is byte-wide parts, thus no byte-order issues */ 395 strnput("\177ELF", 4); /* e_ident */ 396 CPUT(1); /* class = 32 bit */ 397 CPUT(little? 1: 2); /* data: 1 = LSB, 2 = MSB */ 398 CPUT(1); /* version = 1 */ 399 strnput("", 9); /* reserved for expansion */ 400 /* entire remainder of ELF file is in target byte order */ 401 402 /* file header part of ELF header */ 403 objhput(2); /* type = EXEC */ 404 objhput(8); /* machine = MIPS */ 405 objput(1L); /* version = CURRENT */ 406 objput(entryvalue()); /* entry vaddr */ 407 objput(52L); /* offset to first phdr */ 408 objput(0L); /* offset to first shdr */ 409 objput(0L); /* flags (no MIPS flags defined) */ 410 objhput(52); /* Ehdr size */ 411 objhput(32); /* Phdr size */ 412 objhput(3); /* # of Phdrs */ 413 objhput(0); /* Shdr size */ 414 objhput(0); /* # of Shdrs */ 415 objhput(0); /* Shdr string size */ 416 417 /* "Program headers" - one per chunk of file to load */ 418 419 /* 420 * include ELF headers in text -- 8l doesn't, 421 * but in theory it aids demand loading. 422 */ 423 objput(1L); /* text: type = PT_LOAD */ 424 objput(0L); /* file offset */ 425 objput(INITTEXT-HEADR); /* vaddr */ 426 objput(INITTEXT-HEADR); /* paddr */ 427 objput(HEADR+textsize); /* file size */ 428 objput(HEADR+textsize); /* memory size */ 429 objput(0x05L); /* protections = RX */ 430 objput(0x1000L); /* page-align text off's & vaddrs */ 431 432 objput(1L); /* data: type = PT_LOAD */ 433 objput(HEADR+textsize); /* file offset */ 434 objput(INITDAT); /* vaddr */ 435 objput(INITDAT); /* paddr */ 436 objput(datsize); /* file size */ 437 objput(datsize+bsssize); /* memory size */ 438 objput(0x06L); /* protections = RW */ 439 if(INITDAT % 4096 == 0 && (HEADR + textsize) % 4096 == 0) 440 objput(0x1000L); /* page-align data off's & vaddrs */ 441 else 442 objput(0L); /* do not claim alignment */ 443 444 objput(0L); /* P9 symbols: type = PT_NULL */ 445 objput(HEADR+textsize+datsize); /* file offset */ 446 objput(0L); 447 objput(0L); 448 objput(symsize); /* symbol table size */ 449 objput(lcsize); /* line number size */ 450 objput(0x04L); /* protections = R */ 451 objput(0L); /* do not claim alignment */ 452 break; 453 case 6: 454 break; 455 } 456 cflush(); 457 } 458 459 void 460 strnput(char *s, int n) 461 { 462 for(; *s; s++){ 463 CPUT(*s); 464 n--; 465 } 466 for(; n > 0; n--) 467 CPUT(0); 468 } 469 470 void 471 cflush(void) 472 { 473 int n; 474 475 n = sizeof(buf.cbuf) - cbc; 476 if(n) 477 write(cout, buf.cbuf, n); 478 cbp = buf.cbuf; 479 cbc = sizeof(buf.cbuf); 480 } 481 482 void 483 nopstat(char *f, Count *c) 484 { 485 if(c->outof) 486 Bprint(&bso, "%s delay %ld/%ld (%.2f)\n", f, 487 c->outof - c->count, c->outof, 488 (double)(c->outof - c->count)/c->outof); 489 } 490 491 void 492 asmsym(void) 493 { 494 Prog *p; 495 Auto *a; 496 Sym *s; 497 int h; 498 499 s = lookup("etext", 0); 500 if(s->type == STEXT) 501 putsymb(s->name, 'T', s->value, s->version); 502 503 for(h=0; h<NHASH; h++) 504 for(s=hash[h]; s!=S; s=s->link) 505 switch(s->type) { 506 case SCONST: 507 putsymb(s->name, 'D', s->value, s->version); 508 continue; 509 510 case SSTRING: 511 putsymb(s->name, 'T', s->value, s->version); 512 continue; 513 514 case SDATA: 515 putsymb(s->name, 'D', s->value+INITDAT, s->version); 516 continue; 517 518 case SBSS: 519 putsymb(s->name, 'B', s->value+INITDAT, s->version); 520 continue; 521 522 case SFILE: 523 putsymb(s->name, 'f', s->value, s->version); 524 continue; 525 } 526 527 for(p=textp; p!=P; p=p->cond) { 528 s = p->from.sym; 529 if(s->type != STEXT && s->type != SLEAF) 530 continue; 531 532 /* filenames first */ 533 for(a=p->to.autom; a; a=a->link) 534 if(a->type == D_FILE) 535 putsymb(a->asym->name, 'z', a->aoffset, 0); 536 else 537 if(a->type == D_FILE1) 538 putsymb(a->asym->name, 'Z', a->aoffset, 0); 539 540 if(s->type == STEXT) 541 putsymb(s->name, 'T', s->value, s->version); 542 else 543 putsymb(s->name, 'L', s->value, s->version); 544 545 /* frame, auto and param after */ 546 putsymb(".frame", 'm', p->to.offset+4, 0); 547 for(a=p->to.autom; a; a=a->link) 548 if(a->type == D_AUTO) 549 putsymb(a->asym->name, 'a', -a->aoffset, 0); 550 else 551 if(a->type == D_PARAM) 552 putsymb(a->asym->name, 'p', a->aoffset, 0); 553 } 554 if(debug['v'] || debug['n']) 555 Bprint(&bso, "symsize = %lud\n", symsize); 556 Bflush(&bso); 557 } 558 559 void 560 putsymb(char *s, int t, long v, int ver) 561 { 562 int i, f; 563 564 if(t == 'f') 565 s++; 566 LBEPUT(v); 567 if(ver) 568 t += 'a' - 'A'; 569 CPUT(t+0x80); /* 0x80 is variable length */ 570 571 if(t == 'Z' || t == 'z') { 572 CPUT(s[0]); 573 for(i=1; s[i] != 0 || s[i+1] != 0; i += 2) { 574 CPUT(s[i]); 575 CPUT(s[i+1]); 576 } 577 CPUT(0); 578 CPUT(0); 579 i++; 580 } 581 else { 582 for(i=0; s[i]; i++) 583 CPUT(s[i]); 584 CPUT(0); 585 } 586 symsize += 4 + 1 + i + 1; 587 588 if(debug['n']) { 589 if(t == 'z' || t == 'Z') { 590 Bprint(&bso, "%c %.8lux ", t, v); 591 for(i=1; s[i] != 0 || s[i+1] != 0; i+=2) { 592 f = ((s[i]&0xff) << 8) | (s[i+1]&0xff); 593 Bprint(&bso, "/%x", f); 594 } 595 Bprint(&bso, "\n"); 596 return; 597 } 598 if(ver) 599 Bprint(&bso, "%c %.8lux %s<%d>\n", t, v, s, ver); 600 else 601 Bprint(&bso, "%c %.8lux %s\n", t, v, s); 602 } 603 } 604 605 #define MINLC 4 606 void 607 asmlc(void) 608 { 609 long oldpc, oldlc; 610 Prog *p; 611 long v, s; 612 613 oldpc = INITTEXT; 614 oldlc = 0; 615 for(p = firstp; p != P; p = p->link) { 616 if(p->line == oldlc || p->as == ATEXT || p->as == ANOP) { 617 if(p->as == ATEXT) 618 curtext = p; 619 if(debug['L']) 620 Bprint(&bso, "%6lux %P\n", 621 p->pc, p); 622 continue; 623 } 624 if(debug['L']) 625 Bprint(&bso, "\t\t%6ld", lcsize); 626 v = (p->pc - oldpc) / MINLC; 627 while(v) { 628 s = 127; 629 if(v < 127) 630 s = v; 631 CPUT(s+128); /* 129-255 +pc */ 632 if(debug['L']) 633 Bprint(&bso, " pc+%ld*%d(%ld)", s, MINLC, s+128); 634 v -= s; 635 lcsize++; 636 } 637 s = p->line - oldlc; 638 oldlc = p->line; 639 oldpc = p->pc + MINLC; 640 if(s > 64 || s < -64) { 641 CPUT(0); /* 0 vv +lc */ 642 CPUT(s>>24); 643 CPUT(s>>16); 644 CPUT(s>>8); 645 CPUT(s); 646 if(debug['L']) { 647 if(s > 0) 648 Bprint(&bso, " lc+%ld(%d,%ld)\n", 649 s, 0, s); 650 else 651 Bprint(&bso, " lc%ld(%d,%ld)\n", 652 s, 0, s); 653 Bprint(&bso, "%6lux %P\n", 654 p->pc, p); 655 } 656 lcsize += 5; 657 continue; 658 } 659 if(s > 0) { 660 CPUT(0+s); /* 1-64 +lc */ 661 if(debug['L']) { 662 Bprint(&bso, " lc+%ld(%ld)\n", s, 0+s); 663 Bprint(&bso, "%6lux %P\n", 664 p->pc, p); 665 } 666 } else { 667 CPUT(64-s); /* 65-128 -lc */ 668 if(debug['L']) { 669 Bprint(&bso, " lc%ld(%ld)\n", s, 64-s); 670 Bprint(&bso, "%6lux %P\n", 671 p->pc, p); 672 } 673 } 674 lcsize++; 675 } 676 while(lcsize & 1) { 677 s = 129; 678 CPUT(s); 679 lcsize++; 680 } 681 if(debug['v'] || debug['L']) 682 Bprint(&bso, "lcsize = %ld\n", lcsize); 683 Bflush(&bso); 684 } 685 686 void 687 datblk(long s, long n, int str) 688 { 689 Prog *p; 690 char *cast; 691 long l, fl, j, d; 692 int i, c; 693 694 memset(buf.dbuf, 0, n+100); 695 for(p = datap; p != P; p = p->link) { 696 curp = p; 697 if(str != (p->from.sym->type == SSTRING)) 698 continue; 699 l = p->from.sym->value + p->from.offset - s; 700 c = p->reg; 701 i = 0; 702 if(l < 0) { 703 if(l+c <= 0) 704 continue; 705 while(l < 0) { 706 l++; 707 i++; 708 } 709 } 710 if(l >= n) 711 continue; 712 if(p->as != AINIT && p->as != ADYNT) { 713 for(j=l+(c-i)-1; j>=l; j--) 714 if(buf.dbuf[j]) { 715 print("%P\n", p); 716 diag("multiple initialization"); 717 break; 718 } 719 } 720 switch(p->to.type) { 721 default: 722 diag("unknown mode in initialization\n%P", p); 723 break; 724 725 case D_FCONST: 726 switch(c) { 727 default: 728 case 4: 729 fl = ieeedtof(p->to.ieee); 730 cast = (char*)&fl; 731 for(; i<c; i++) { 732 buf.dbuf[l] = cast[fnuxi8[i+4]]; 733 l++; 734 } 735 break; 736 case 8: 737 cast = (char*)p->to.ieee; 738 for(; i<c; i++) { 739 buf.dbuf[l] = cast[fnuxi8[i]]; 740 l++; 741 } 742 break; 743 } 744 break; 745 746 case D_SCONST: 747 for(; i<c; i++) { 748 buf.dbuf[l] = p->to.sval[i]; 749 l++; 750 } 751 break; 752 753 case D_CONST: 754 d = p->to.offset; 755 if(p->to.sym) { 756 switch(p->to.sym->type) { 757 case STEXT: 758 case SLEAF: 759 case SSTRING: 760 d += p->to.sym->value; 761 break; 762 case SDATA: 763 case SBSS: 764 d += p->to.sym->value + INITDAT; 765 break; 766 } 767 } 768 cast = (char*)&d; 769 switch(c) { 770 default: 771 diag("bad nuxi %d %d\n%P", c, i, curp); 772 break; 773 case 1: 774 for(; i<c; i++) { 775 buf.dbuf[l] = cast[inuxi1[i]]; 776 l++; 777 } 778 break; 779 case 2: 780 for(; i<c; i++) { 781 buf.dbuf[l] = cast[inuxi2[i]]; 782 l++; 783 } 784 break; 785 case 4: 786 for(; i<c; i++) { 787 buf.dbuf[l] = cast[inuxi4[i]]; 788 l++; 789 } 790 break; 791 } 792 break; 793 } 794 } 795 write(cout, buf.dbuf, n); 796 } 797 798 #define OP_RRR(op,r1,r2,r3)\ 799 (op|(((r1)&31L)<<16)|(((r2)&31L)<<21)|(((r3)&31L)<<11)) 800 #define OP_IRR(op,i,r2,r3)\ 801 (op|((i)&0xffffL)|(((r2)&31L)<<21)|(((r3)&31L)<<16)) 802 #define OP_SRR(op,s,r2,r3)\ 803 (op|(((s)&31L)<<6)|(((r2)&31L)<<16)|(((r3)&31L)<<11)) 804 #define OP_FRRR(op,r1,r2,r3)\ 805 (op|(((r1)&31L)<<16)|(((r2)&31L)<<11)|(((r3)&31L)<<6)) 806 #define OP_JMP(op,i)\ 807 ((op)|((i)&0x3ffffffL)) 808 809 #define OP(x,y)\ 810 (((x)<<3)|((y)<<0)) 811 #define SP(x,y)\ 812 (((x)<<29)|((y)<<26)) 813 #define BCOND(x,y)\ 814 (((x)<<19)|((y)<<16)) 815 #define MMU(x,y)\ 816 (SP(2,0)|(16<<21)|((x)<<3)|((y)<<0)) 817 #define FPF(x,y)\ 818 (SP(2,1)|(16<<21)|((x)<<3)|((y)<<0)) 819 #define FPD(x,y)\ 820 (SP(2,1)|(17<<21)|((x)<<3)|((y)<<0)) 821 #define FPW(x,y)\ 822 (SP(2,1)|(20<<21)|((x)<<3)|((y)<<0)) 823 824 int vshift(int); 825 826 int 827 asmout(Prog *p, Optab *o, int aflag) 828 { 829 long o1, o2, o3, o4, o5, o6, o7, v; 830 Prog *ct; 831 int r, a; 832 833 o1 = 0; 834 o2 = 0; 835 o3 = 0; 836 o4 = 0; 837 o5 = 0; 838 o6 = 0; 839 o7 = 0; 840 switch(o->type) { 841 default: 842 diag("unknown type %d", o->type); 843 if(!debug['a']) 844 prasm(p); 845 break; 846 847 case 0: /* pseudo ops */ 848 if(aflag) { 849 if(p->link) { 850 if(p->as == ATEXT) { 851 ct = curtext; 852 o2 = autosize; 853 curtext = p; 854 autosize = p->to.offset + 4; 855 o1 = asmout(p->link, oplook(p->link), aflag); 856 curtext = ct; 857 autosize = o2; 858 } else 859 o1 = asmout(p->link, oplook(p->link), aflag); 860 } 861 return o1; 862 } 863 break; 864 865 case 1: /* mov[v] r1,r2 ==> OR r1,r0,r2 */ 866 o1 = OP_RRR(oprrr(AOR), p->from.reg, REGZERO, p->to.reg); 867 break; 868 869 case 2: /* add/sub r1,[r2],r3 */ 870 r = p->reg; 871 if(r == NREG) 872 r = p->to.reg; 873 o1 = OP_RRR(oprrr(p->as), p->from.reg, r, p->to.reg); 874 break; 875 876 case 3: /* mov $soreg, r ==> or/add $i,o,r */ 877 v = regoff(&p->from); 878 r = p->from.reg; 879 if(r == NREG) 880 r = o->param; 881 a = AADDU; 882 if(o->a1 == C_ANDCON) 883 a = AOR; 884 o1 = OP_IRR(opirr(a), v, r, p->to.reg); 885 break; 886 887 case 4: /* add $scon,[r1],r2 */ 888 v = regoff(&p->from); 889 r = p->reg; 890 if(r == NREG) 891 r = p->to.reg; 892 o1 = OP_IRR(opirr(p->as), v, r, p->to.reg); 893 break; 894 895 case 5: /* syscall */ 896 if(aflag) 897 return 0; 898 o1 = oprrr(p->as); 899 break; 900 901 case 6: /* beq r1,[r2],sbra */ 902 if(aflag) 903 return 0; 904 if(p->cond == P) 905 v = -4 >> 2; 906 else 907 v = (p->cond->pc - pc-4) >> 2; 908 if(((v << 16) >> 16) != v) 909 diag("short branch too far: %ld\n%P", v, p); 910 o1 = OP_IRR(opirr(p->as), v, p->from.reg, p->reg); 911 break; 912 913 case 7: /* mov r, soreg ==> sw o(r) */ 914 r = p->to.reg; 915 if(r == NREG) 916 r = o->param; 917 v = regoff(&p->to); 918 o1 = OP_IRR(opirr(p->as), v, r, p->from.reg); 919 break; 920 921 case 8: /* mov soreg, r ==> lw o(r) */ 922 r = p->from.reg; 923 if(r == NREG) 924 r = o->param; 925 v = regoff(&p->from); 926 o1 = OP_IRR(opirr(p->as+ALAST), v, r, p->to.reg); 927 break; 928 929 case 9: /* asl r1,[r2],r3 */ 930 r = p->reg; 931 if(r == NREG) 932 r = p->to.reg; 933 o1 = OP_RRR(oprrr(p->as), r, p->from.reg, p->to.reg); 934 break; 935 936 case 10: /* add $con,[r1],r2 ==> mov $con,t; add t,[r1],r2 */ 937 v = regoff(&p->from); 938 r = AOR; 939 if(v < 0) 940 r = AADDU; 941 o1 = OP_IRR(opirr(r), v, 0, REGTMP); 942 r = p->reg; 943 if(r == NREG) 944 r = p->to.reg; 945 o2 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg); 946 break; 947 948 case 11: /* jmp lbra */ 949 if(aflag) 950 return 0; 951 if(p->cond == P) 952 v = p->pc >> 2; 953 else 954 v = p->cond->pc >> 2; 955 o1 = OP_JMP(opirr(p->as), v); 956 if(!debug['Y'] && p->link && p->cond && isnop(p->link)) { 957 nop.branch.count--; 958 nop.branch.outof--; 959 nop.jump.outof++; 960 o2 = asmout(p->cond, oplook(p->cond), 1); 961 if(o2) { 962 o1 += 1; 963 if(debug['a']) 964 Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", 965 p->pc, o1, o2, p); 966 LPUT(o1); 967 LPUT(o2); 968 return 1; 969 } 970 } 971 break; 972 973 case 12: /* movbs r,r */ 974 v = 16; 975 if(p->as == AMOVB) 976 v = 24; 977 o1 = OP_SRR(opirr(ASLL), v, p->from.reg, p->to.reg); 978 o2 = OP_SRR(opirr(ASRA), v, p->to.reg, p->to.reg); 979 break; 980 981 case 13: /* movbu r,r */ 982 if(p->as == AMOVBU) 983 o1 = OP_IRR(opirr(AAND), 0xffL, p->from.reg, p->to.reg); 984 else 985 o1 = OP_IRR(opirr(AAND), 0xffffL, p->from.reg, p->to.reg); 986 break; 987 988 case 16: /* sll $c,[r1],r2 */ 989 v = regoff(&p->from); 990 r = p->reg; 991 if(r == NREG) 992 r = p->to.reg; 993 994 /* OP_SRR will use only the low 5 bits of the shift value */ 995 if(v >= 32 && vshift(p->as)) 996 o1 = OP_SRR(opirr(p->as+ALAST), v-32, r, p->to.reg); 997 else 998 o1 = OP_SRR(opirr(p->as), v, r, p->to.reg); 999 break; 1000 1001 case 18: /* jmp [r1],0(r2) */ 1002 if(aflag) 1003 return 0; 1004 r = p->reg; 1005 if(r == NREG) 1006 r = o->param; 1007 o1 = OP_RRR(oprrr(p->as), 0, p->to.reg, r); 1008 break; 1009 1010 case 19: /* mov $lcon,r ==> lu+or */ 1011 v = regoff(&p->from); 1012 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, p->to.reg); 1013 o2 = OP_IRR(opirr(AOR), v, p->to.reg, p->to.reg); 1014 break; 1015 1016 case 20: /* mov lohi,r */ 1017 r = OP(2,0); /* mfhi */ 1018 if(p->from.type == D_LO) 1019 r = OP(2,2); /* mflo */ 1020 o1 = OP_RRR(r, REGZERO, REGZERO, p->to.reg); 1021 break; 1022 1023 case 21: /* mov r,lohi */ 1024 r = OP(2,1); /* mthi */ 1025 if(p->to.type == D_LO) 1026 r = OP(2,3); /* mtlo */ 1027 o1 = OP_RRR(r, REGZERO, p->from.reg, REGZERO); 1028 break; 1029 1030 case 22: /* mul r1,r2 */ 1031 o1 = OP_RRR(oprrr(p->as), p->from.reg, p->reg, REGZERO); 1032 break; 1033 1034 case 23: /* add $lcon,r1,r2 ==> lu+or+add */ 1035 v = regoff(&p->from); 1036 if(p->to.reg == REGTMP || p->reg == REGTMP) 1037 diag("cant synthesize large constant\n%P", p); 1038 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1039 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1040 r = p->reg; 1041 if(r == NREG) 1042 r = p->to.reg; 1043 o3 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg); 1044 break; 1045 1046 case 24: /* mov $ucon,,r ==> lu r */ 1047 v = regoff(&p->from); 1048 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, p->to.reg); 1049 break; 1050 1051 case 25: /* add/and $ucon,[r1],r2 ==> lu $con,t; add t,[r1],r2 */ 1052 v = regoff(&p->from); 1053 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1054 r = p->reg; 1055 if(r == NREG) 1056 r = p->to.reg; 1057 o2 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg); 1058 break; 1059 1060 case 26: /* mov $lsext/auto/oreg,,r2 ==> lu+or+add */ 1061 v = regoff(&p->from); 1062 if(p->to.reg == REGTMP) 1063 diag("cant synthesize large constant\n%P", p); 1064 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1065 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1066 r = p->from.reg; 1067 if(r == NREG) 1068 r = o->param; 1069 o3 = OP_RRR(oprrr(AADDU), REGTMP, r, p->to.reg); 1070 break; 1071 1072 case 27: /* mov [sl]ext/auto/oreg,fr ==> lwc1 o(r) */ 1073 r = p->from.reg; 1074 if(r == NREG) 1075 r = o->param; 1076 v = regoff(&p->from); 1077 switch(o->size) { 1078 case 20: 1079 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1080 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1081 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1082 o4 = OP_IRR(opirr(AMOVF+ALAST), 0, REGTMP, p->to.reg+1); 1083 o5 = OP_IRR(opirr(AMOVF+ALAST), 4, REGTMP, p->to.reg); 1084 break; 1085 case 16: 1086 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1087 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1088 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1089 o4 = OP_IRR(opirr(AMOVF+ALAST), 0, REGTMP, p->to.reg); 1090 break; 1091 case 8: 1092 o1 = OP_IRR(opirr(AMOVF+ALAST), v, r, p->to.reg+1); 1093 o2 = OP_IRR(opirr(AMOVF+ALAST), v+4, r, p->to.reg); 1094 break; 1095 case 4: 1096 o1 = OP_IRR(opirr(AMOVF+ALAST), v, r, p->to.reg); 1097 break; 1098 } 1099 break; 1100 1101 case 28: /* mov fr,[sl]ext/auto/oreg ==> swc1 o(r) */ 1102 r = p->to.reg; 1103 if(r == NREG) 1104 r = o->param; 1105 v = regoff(&p->to); 1106 switch(o->size) { 1107 case 20: 1108 if(r == REGTMP) 1109 diag("cant synthesize large constant\n%P", p); 1110 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1111 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1112 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1113 o4 = OP_IRR(opirr(AMOVF), 0, REGTMP, p->from.reg+1); 1114 o5 = OP_IRR(opirr(AMOVF), 4, REGTMP, p->from.reg); 1115 break; 1116 case 16: 1117 if(r == REGTMP) 1118 diag("cant synthesize large constant\n%P", p); 1119 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1120 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1121 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1122 o4 = OP_IRR(opirr(AMOVF), 0, REGTMP, p->from.reg); 1123 break; 1124 case 8: 1125 o1 = OP_IRR(opirr(AMOVF), v, r, p->from.reg+1); 1126 o2 = OP_IRR(opirr(AMOVF), v+4, r, p->from.reg); 1127 break; 1128 case 4: 1129 o1 = OP_IRR(opirr(AMOVF), v, r, p->from.reg); 1130 break; 1131 } 1132 break; 1133 1134 case 30: /* movw r,fr */ 1135 r = SP(2,1)|(4<<21); /* mtc1 */ 1136 o1 = OP_RRR(r, p->from.reg, 0, p->to.reg); 1137 break; 1138 1139 case 31: /* movw fr,r */ 1140 r = SP(2,1)|(0<<21); /* mfc1 */ 1141 o1 = OP_RRR(r, p->to.reg, 0, p->from.reg); 1142 break; 1143 1144 case 32: /* fadd fr1,[fr2],fr3 */ 1145 r = p->reg; 1146 if(r == NREG) 1147 o1 = OP_FRRR(oprrr(p->as), p->from.reg, p->to.reg, p->to.reg); 1148 else 1149 o1 = OP_FRRR(oprrr(p->as), p->from.reg, r, p->to.reg); 1150 break; 1151 1152 case 33: /* fabs fr1,fr3 */ 1153 o1 = OP_FRRR(oprrr(p->as), 0, p->from.reg, p->to.reg); 1154 break; 1155 1156 case 34: /* mov $con,fr ==> or/add $i,r,r2 */ 1157 v = regoff(&p->from); 1158 r = AADDU; 1159 if(o->a1 == C_ANDCON) 1160 r = AOR; 1161 o1 = OP_IRR(opirr(r), v, 0, REGTMP); 1162 o2 = OP_RRR(SP(2,1)|(4<<21), REGTMP, 0, p->to.reg); /* mtc1 */ 1163 break; 1164 1165 case 35: /* mov r,lext/luto/oreg ==> sw o(r) */ 1166 /* 1167 * the lowbits of the constant cannot 1168 * be moved into the offset of the load 1169 * because the mips 4000 in 64-bit mode 1170 * does a 64-bit add and it will screw up. 1171 */ 1172 v = regoff(&p->to); 1173 r = p->to.reg; 1174 if(r == NREG) 1175 r = o->param; 1176 if(r == REGTMP) 1177 diag("cant synthesize large constant\n%P", p); 1178 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1179 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1180 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1181 o4 = OP_IRR(opirr(p->as), 0, REGTMP, p->from.reg); 1182 break; 1183 1184 case 36: /* mov lext/lauto/lreg,r ==> lw o(r30) */ 1185 v = regoff(&p->from); 1186 r = p->from.reg; 1187 if(r == NREG) 1188 r = o->param; 1189 if(r == REGTMP) 1190 diag("cant synthesize large constant\n%P", p); 1191 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1192 o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP); 1193 o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP); 1194 o4 = OP_IRR(opirr(p->as+ALAST), 0, REGTMP, p->to.reg); 1195 break; 1196 1197 case 37: /* movw r,mr */ 1198 r = SP(2,0)|(4<<21); /* mtc0 */ 1199 if(p->as == AMOVV) 1200 r = SP(2,0)|(5<<21); /* dmtc0 */ 1201 o1 = OP_RRR(r, p->from.reg, 0, p->to.reg); 1202 break; 1203 1204 case 38: /* movw mr,r */ 1205 r = SP(2,0)|(0<<21); /* mfc0 */ 1206 if(p->as == AMOVV) 1207 r = SP(2,0)|(1<<21); /* dmfc0 */ 1208 o1 = OP_RRR(r, p->to.reg, 0, p->from.reg); 1209 break; 1210 1211 case 39: /* rfe ==> jmp+rfe */ 1212 if(aflag) 1213 return 0; 1214 o1 = OP_RRR(oprrr(AJMP), 0, p->to.reg, REGZERO); 1215 o2 = oprrr(p->as); 1216 break; 1217 1218 case 40: /* word */ 1219 if(aflag) 1220 return 0; 1221 o1 = regoff(&p->to); 1222 break; 1223 1224 case 41: /* movw r,fcr */ 1225 o1 = OP_RRR(SP(2,1)|(2<<21), REGZERO, 0, p->to.reg); /* mfcc1 */ 1226 o2 = OP_RRR(SP(2,1)|(6<<21), p->from.reg, 0, p->to.reg);/* mtcc1 */ 1227 break; 1228 1229 case 42: /* movw fcr,r */ 1230 o1 = OP_RRR(SP(2,1)|(2<<21), p->to.reg, 0, p->from.reg);/* mfcc1 */ 1231 break; 1232 1233 case 45: /* case r */ 1234 if(p->link == P) 1235 v = p->pc+28; 1236 else 1237 v = p->link->pc; 1238 if(v & (1<<15)) 1239 o1 = OP_IRR(opirr(ALAST), (v>>16)+1, REGZERO, REGTMP); 1240 else 1241 o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP); 1242 o2 = OP_SRR(opirr(ASLL), 2, p->from.reg, p->from.reg); 1243 o3 = OP_RRR(oprrr(AADD), p->from.reg, REGTMP, REGTMP); 1244 o4 = OP_IRR(opirr(AMOVW+ALAST), v, REGTMP, REGTMP); 1245 o5 = OP_RRR(oprrr(ANOR), REGZERO, REGZERO, REGZERO); 1246 o6 = OP_RRR(oprrr(AJMP), 0, REGTMP, REGZERO); 1247 o7 = OP_RRR(oprrr(ANOR), REGZERO, REGZERO, REGZERO); 1248 break; 1249 1250 case 46: /* bcase $con,lbra */ 1251 if(p->cond == P) 1252 v = p->pc; 1253 else 1254 v = p->cond->pc; 1255 o1 = v; 1256 break; 1257 } 1258 if(aflag) 1259 return o1; 1260 v = p->pc; 1261 switch(o->size) { 1262 default: 1263 if(debug['a']) 1264 Bprint(&bso, " %.8lux:\t\t%P\n", v, p); 1265 break; 1266 case 4: 1267 if(debug['a']) 1268 Bprint(&bso, " %.8lux: %.8lux\t%P\n", v, o1, p); 1269 LPUT(o1); 1270 break; 1271 case 8: 1272 if(debug['a']) 1273 Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", v, o1, o2, p); 1274 LPUT(o1); 1275 LPUT(o2); 1276 break; 1277 case 12: 1278 if(debug['a']) 1279 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux%P\n", v, o1, o2, o3, p); 1280 LPUT(o1); 1281 LPUT(o2); 1282 LPUT(o3); 1283 break; 1284 case 16: 1285 if(debug['a']) 1286 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux%P\n", 1287 v, o1, o2, o3, o4, p); 1288 LPUT(o1); 1289 LPUT(o2); 1290 LPUT(o3); 1291 LPUT(o4); 1292 break; 1293 case 20: 1294 if(debug['a']) 1295 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux%P\n", 1296 v, o1, o2, o3, o4, o5, p); 1297 LPUT(o1); 1298 LPUT(o2); 1299 LPUT(o3); 1300 LPUT(o4); 1301 LPUT(o5); 1302 break; 1303 1304 case 28: 1305 if(debug['a']) 1306 Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux %.8lux %.8lux%P\n", 1307 v, o1, o2, o3, o4, o5, o6, o7, p); 1308 LPUT(o1); 1309 LPUT(o2); 1310 LPUT(o3); 1311 LPUT(o4); 1312 LPUT(o5); 1313 LPUT(o6); 1314 LPUT(o7); 1315 break; 1316 } 1317 return 0; 1318 } 1319 1320 int 1321 isnop(Prog *p) 1322 { 1323 if(p->as != ANOR) 1324 return 0; 1325 if(p->reg != REGZERO && p->reg != NREG) 1326 return 0; 1327 if(p->from.type != D_REG || p->from.reg != REGZERO) 1328 return 0; 1329 if(p->to.type != D_REG || p->to.reg != REGZERO) 1330 return 0; 1331 return 1; 1332 } 1333 1334 long 1335 oprrr(int a) 1336 { 1337 switch(a) { 1338 case AADD: return OP(4,0); 1339 case AADDU: return OP(4,1); 1340 case ASGT: return OP(5,2); 1341 case ASGTU: return OP(5,3); 1342 case AAND: return OP(4,4); 1343 case AOR: return OP(4,5); 1344 case AXOR: return OP(4,6); 1345 case ASUB: return OP(4,2); 1346 case ASUBU: return OP(4,3); 1347 case ANOR: return OP(4,7); 1348 case ASLL: return OP(0,4); 1349 case ASRL: return OP(0,6); 1350 case ASRA: return OP(0,7); 1351 1352 case AREM: 1353 case ADIV: return OP(3,2); 1354 case AREMU: 1355 case ADIVU: return OP(3,3); 1356 case AMUL: return OP(3,0); 1357 case AMULU: return OP(3,1); 1358 1359 case AJMP: return OP(1,0); 1360 case AJAL: return OP(1,1); 1361 1362 case ABREAK: return OP(1,5); 1363 case ASYSCALL: return OP(1,4); 1364 case ATLBP: return MMU(1,0); 1365 case ATLBR: return MMU(0,1); 1366 case ATLBWI: return MMU(0,2); 1367 case ATLBWR: return MMU(0,6); 1368 case ARFE: return MMU(2,0); 1369 1370 case ADIVF: return FPF(0,3); 1371 case ADIVD: return FPD(0,3); 1372 case AMULF: return FPF(0,2); 1373 case AMULD: return FPD(0,2); 1374 case ASUBF: return FPF(0,1); 1375 case ASUBD: return FPD(0,1); 1376 case AADDF: return FPF(0,0); 1377 case AADDD: return FPD(0,0); 1378 1379 case AMOVFW: return FPF(4,4); 1380 case AMOVDW: return FPD(4,4); 1381 case AMOVWF: return FPW(4,0); 1382 case AMOVDF: return FPD(4,0); 1383 case AMOVWD: return FPW(4,1); 1384 case AMOVFD: return FPF(4,1); 1385 case AABSF: return FPF(0,5); 1386 case AABSD: return FPD(0,5); 1387 case AMOVF: return FPF(0,6); 1388 case AMOVD: return FPD(0,6); 1389 case ANEGF: return FPF(0,7); 1390 case ANEGD: return FPD(0,7); 1391 1392 case ACMPEQF: return FPF(6,2); 1393 case ACMPEQD: return FPD(6,2); 1394 case ACMPGTF: return FPF(7,4); 1395 case ACMPGTD: return FPD(7,4); 1396 case ACMPGEF: return FPF(7,6); 1397 case ACMPGED: return FPD(7,6); 1398 1399 case ADIVV: return OP(3,6); 1400 case ADIVVU: return OP(3,7); 1401 case AADDV: return OP(5,4); 1402 case AADDVU: return OP(5,5); 1403 } 1404 diag("bad rrr %d", a); 1405 return 0; 1406 } 1407 1408 long 1409 opirr(int a) 1410 { 1411 switch(a) { 1412 case AADD: return SP(1,0); 1413 case AADDU: return SP(1,1); 1414 case ASGT: return SP(1,2); 1415 case ASGTU: return SP(1,3); 1416 case AAND: return SP(1,4); 1417 case AOR: return SP(1,5); 1418 case AXOR: return SP(1,6); 1419 case ALAST: return SP(1,7); 1420 case ASLL: return OP(0,0); 1421 case ASRL: return OP(0,2); 1422 case ASRA: return OP(0,3); 1423 1424 case AJMP: return SP(0,2); 1425 case AJAL: return SP(0,3); 1426 case ABEQ: return SP(0,4); 1427 case ABNE: return SP(0,5); 1428 1429 case ABGEZ: return SP(0,1)|BCOND(0,1); 1430 case ABGEZAL: return SP(0,1)|BCOND(2,1); 1431 case ABGTZ: return SP(0,7); 1432 case ABLEZ: return SP(0,6); 1433 case ABLTZ: return SP(0,1)|BCOND(0,0); 1434 case ABLTZAL: return SP(0,1)|BCOND(2,0); 1435 1436 case ABFPT: return SP(2,1)|(257<<16); 1437 case ABFPF: return SP(2,1)|(256<<16); 1438 1439 case AMOVB: 1440 case AMOVBU: return SP(5,0); 1441 case AMOVH: 1442 case AMOVHU: return SP(5,1); 1443 case AMOVW: return SP(5,3); 1444 case AMOVV: return SP(7,7); 1445 case AMOVF: return SP(7,1); 1446 case AMOVWL: return SP(5,2); 1447 case AMOVWR: return SP(5,6); 1448 case AMOVVL: return SP(5,4); 1449 case AMOVVR: return SP(5,5); 1450 1451 case ABREAK: return SP(5,7); 1452 1453 case AMOVWL+ALAST: return SP(4,2); 1454 case AMOVWR+ALAST: return SP(4,6); 1455 case AMOVVL+ALAST: return SP(3,2); 1456 case AMOVVR+ALAST: return SP(3,3); 1457 case AMOVB+ALAST: return SP(4,0); 1458 case AMOVBU+ALAST: return SP(4,4); 1459 case AMOVH+ALAST: return SP(4,1); 1460 case AMOVHU+ALAST: return SP(4,5); 1461 case AMOVW+ALAST: return SP(4,3); 1462 case AMOVV+ALAST: return SP(6,7); 1463 case AMOVF+ALAST: return SP(6,1); 1464 1465 case ASLLV: return OP(7,0); 1466 case ASRLV: return OP(7,2); 1467 case ASRAV: return OP(7,3); 1468 case ASLLV+ALAST: return OP(7,4); 1469 case ASRLV+ALAST: return OP(7,6); 1470 case ASRAV+ALAST: return OP(7,7); 1471 1472 case AADDV: return SP(3,0); 1473 case AADDVU: return SP(3,1); 1474 } 1475 diag("bad irr %d", a); 1476 abort(); 1477 return 0; 1478 } 1479 1480 int 1481 vshift(int a) 1482 { 1483 switch(a){ 1484 case ASLLV: return 1; 1485 case ASRLV: return 1; 1486 case ASRAV: return 1; 1487 } 1488 return 0; 1489 } 1490