| 1 | /* INTERMEDIATE CODE GENERATION FOR S C JOHNSON C COMPILERS */ |
| 2 | /* NEW VERSION USING BINARY POLISH POSTFIX INTERMEDIATE */ |
| 3 | #if FAMILY != SCJ |
| 4 | WRONG put FULE !!!! |
| 5 | #endif |
| 6 | |
| 7 | #include "defs" |
| 8 | #include "scjdefs" |
| 9 | |
| 10 | #define FOUR 4 |
| 11 | extern int ops2[]; |
| 12 | extern int types2[]; |
| 13 | |
| 14 | #define P2BUFFMAX 128 |
| 15 | static long int p2buff[P2BUFFMAX]; |
| 16 | static long int *p2bufp = &p2buff[0]; |
| 17 | static long int *p2bufend = &p2buff[P2BUFFMAX]; |
| 18 | |
| 19 | |
| 20 | puthead(s) |
| 21 | char *s; |
| 22 | { |
| 23 | char buff[100]; |
| 24 | #if TARGET == VAX |
| 25 | if(s) |
| 26 | p2pass( sprintf(buff, "\t.globl\t_%s", s) ); |
| 27 | #endif |
| 28 | /* put out fake copy of left bracket line, to be redone later */ |
| 29 | if( ! headerdone ) |
| 30 | { |
| 31 | #if FAMILY==SCJ && OUTPUT==BINARY |
| 32 | p2flush(); |
| 33 | #endif |
| 34 | headoffset = ftell(textfile); |
| 35 | prhead(textfile); |
| 36 | headerdone = YES; |
| 37 | p2triple(P2STMT, (strlen(infname)+FOUR-1)/FOUR, 0); |
| 38 | p2str(infname); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | |
| 43 | |
| 44 | |
| 45 | |
| 46 | /* It is necessary to precede each procedure with a "left bracket" |
| 47 | * line that tells pass 2 how many register variables and how |
| 48 | * much automatic space is required for the function. This compiler |
| 49 | * does not know how much automatic space is needed until the |
| 50 | * entire procedure has been processed. Therefore, "puthead" |
| 51 | * is called at the begining to record the current location in textfile, |
| 52 | * then to put out a placeholder left bracket line. This procedure |
| 53 | * repositions the file and rewrites that line, then puts the |
| 54 | * file pointer back to the end of the file. |
| 55 | */ |
| 56 | |
| 57 | putbracket() |
| 58 | { |
| 59 | long int hereoffset; |
| 60 | |
| 61 | #if FAMILY==SCJ && OUTPUT==BINARY |
| 62 | p2flush(); |
| 63 | #endif |
| 64 | hereoffset = ftell(textfile); |
| 65 | if(fseek(textfile, headoffset, 0)) |
| 66 | fatal("fseek failed"); |
| 67 | prhead(textfile); |
| 68 | if(fseek(textfile, hereoffset, 0)) |
| 69 | fatal("fseek failed 2"); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | putrbrack(k) |
| 76 | int k; |
| 77 | { |
| 78 | p2op(P2RBRACKET, k); |
| 79 | } |
| 80 | |
| 81 | |
| 82 | |
| 83 | putnreg() |
| 84 | { |
| 85 | } |
| 86 | |
| 87 | |
| 88 | |
| 89 | |
| 90 | |
| 91 | |
| 92 | puteof() |
| 93 | { |
| 94 | p2op(P2EOF, 0); |
| 95 | p2flush(); |
| 96 | } |
| 97 | |
| 98 | |
| 99 | |
| 100 | putstmt() |
| 101 | { |
| 102 | p2triple(P2STMT, 0, lineno); |
| 103 | } |
| 104 | |
| 105 | |
| 106 | |
| 107 | |
| 108 | /* put out code for if( ! p) goto l */ |
| 109 | putif(p,l) |
| 110 | register expptr p; |
| 111 | int l; |
| 112 | { |
| 113 | register int k; |
| 114 | |
| 115 | if( ( k = (p = fixtype(p))->vtype) != TYLOGICAL) |
| 116 | { |
| 117 | if(k != TYERROR) |
| 118 | err("non-logical expression in IF statement"); |
| 119 | frexpr(p); |
| 120 | } |
| 121 | else |
| 122 | { |
| 123 | putex1(p); |
| 124 | p2icon( (long int) l , P2INT); |
| 125 | p2op(P2CBRANCH, 0); |
| 126 | putstmt(); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | |
| 131 | |
| 132 | |
| 133 | |
| 134 | /* put out code for goto l */ |
| 135 | putgoto(label) |
| 136 | int label; |
| 137 | { |
| 138 | p2triple(P2GOTO, 1, label); |
| 139 | putstmt(); |
| 140 | } |
| 141 | |
| 142 | |
| 143 | /* branch to address constant or integer variable */ |
| 144 | putbranch(p) |
| 145 | register struct addrblock *p; |
| 146 | { |
| 147 | putex1(p); |
| 148 | p2op(P2GOTO, P2INT); |
| 149 | putstmt(); |
| 150 | } |
| 151 | |
| 152 | |
| 153 | |
| 154 | /* put out label l: */ |
| 155 | putlabel(label) |
| 156 | int label; |
| 157 | { |
| 158 | p2op(P2LABEL, label); |
| 159 | } |
| 160 | |
| 161 | |
| 162 | |
| 163 | |
| 164 | putexpr(p) |
| 165 | expptr p; |
| 166 | { |
| 167 | putex1(p); |
| 168 | putstmt(); |
| 169 | } |
| 170 | |
| 171 | |
| 172 | |
| 173 | |
| 174 | putcmgo(index, nlab, labs) |
| 175 | expptr index; |
| 176 | int nlab; |
| 177 | struct labelblock *labs[]; |
| 178 | { |
| 179 | int i, labarray, skiplabel; |
| 180 | |
| 181 | if(! ISINT(index->vtype) ) |
| 182 | { |
| 183 | execerr("computed goto index must be integer", NULL); |
| 184 | return; |
| 185 | } |
| 186 | |
| 187 | #if TARGET == VAX |
| 188 | /* use special case instruction */ |
| 189 | vaxgoto(index, nlab, labs); |
| 190 | #else |
| 191 | labarray = newlabel(); |
| 192 | preven(ALIADDR); |
| 193 | prlabel(asmfile, labarray); |
| 194 | prcona(asmfile, (ftnint) (skiplabel = newlabel()) ); |
| 195 | for(i = 0 ; i < nlab ; ++i) |
| 196 | prcona(asmfile, (ftnint)(labs[i]->labelno) ); |
| 197 | prcmgoto(index, nlab, skiplabel, labarray); |
| 198 | putlabel(skiplabel); |
| 199 | #endif |
| 200 | } |
| 201 | \f |
| 202 | putx(p) |
| 203 | expptr p; |
| 204 | { |
| 205 | struct addrblock *putcall(), *putcx1(), *realpart(); |
| 206 | char *memname(); |
| 207 | int opc; |
| 208 | int ncomma; |
| 209 | int type, k; |
| 210 | |
| 211 | switch(p->tag) |
| 212 | { |
| 213 | case TERROR: |
| 214 | free(p); |
| 215 | break; |
| 216 | |
| 217 | case TCONST: |
| 218 | switch(type = p->vtype) |
| 219 | { |
| 220 | case TYLOGICAL: |
| 221 | type = tyint; |
| 222 | case TYLONG: |
| 223 | case TYSHORT: |
| 224 | p2icon(p->const.ci, types2[type]); |
| 225 | free(p); |
| 226 | break; |
| 227 | |
| 228 | case TYADDR: |
| 229 | p2triple(P2ICON, 1, P2INT|P2PTR); |
| 230 | p2word(0L); |
| 231 | p2name(memname(STGCONST, (int) p->const.ci) ); |
| 232 | free(p); |
| 233 | break; |
| 234 | |
| 235 | default: |
| 236 | putx( putconst(p) ); |
| 237 | break; |
| 238 | } |
| 239 | break; |
| 240 | |
| 241 | case TEXPR: |
| 242 | switch(opc = p->opcode) |
| 243 | { |
| 244 | case OPCALL: |
| 245 | case OPCCALL: |
| 246 | if( ISCOMPLEX(p->vtype) ) |
| 247 | putcxop(p); |
| 248 | else putcall(p); |
| 249 | break; |
| 250 | |
| 251 | case OPMIN: |
| 252 | case OPMAX: |
| 253 | putmnmx(p); |
| 254 | break; |
| 255 | |
| 256 | |
| 257 | case OPASSIGN: |
| 258 | if( ISCOMPLEX(p->leftp->vtype) || ISCOMPLEX(p->rightp->vtype) ) |
| 259 | frexpr( putcxeq(p) ); |
| 260 | else if( ISCHAR(p) ) |
| 261 | putcheq(p); |
| 262 | else |
| 263 | goto putopp; |
| 264 | break; |
| 265 | |
| 266 | case OPEQ: |
| 267 | case OPNE: |
| 268 | if( ISCOMPLEX(p->leftp->vtype) || ISCOMPLEX(p->rightp->vtype) ) |
| 269 | { |
| 270 | putcxcmp(p); |
| 271 | break; |
| 272 | } |
| 273 | case OPLT: |
| 274 | case OPLE: |
| 275 | case OPGT: |
| 276 | case OPGE: |
| 277 | if(ISCHAR(p->leftp)) |
| 278 | putchcmp(p); |
| 279 | else |
| 280 | goto putopp; |
| 281 | break; |
| 282 | |
| 283 | case OPPOWER: |
| 284 | putpower(p); |
| 285 | break; |
| 286 | |
| 287 | case OPSTAR: |
| 288 | #if FAMILY == SCJ |
| 289 | /* m * (2**k) -> m<<k */ |
| 290 | if(INT(p->leftp->vtype) && ISICON(p->rightp) && |
| 291 | ( (k = log2(p->rightp->const.ci))>0) ) |
| 292 | { |
| 293 | p->opcode = OPLSHIFT; |
| 294 | frexpr(p->rightp); |
| 295 | p->rightp = ICON(k); |
| 296 | goto putopp; |
| 297 | } |
| 298 | #endif |
| 299 | |
| 300 | case OPMOD: |
| 301 | goto putopp; |
| 302 | case OPPLUS: |
| 303 | case OPMINUS: |
| 304 | case OPSLASH: |
| 305 | case OPNEG: |
| 306 | if( ISCOMPLEX(p->vtype) ) |
| 307 | putcxop(p); |
| 308 | else goto putopp; |
| 309 | break; |
| 310 | |
| 311 | case OPCONV: |
| 312 | if( ISCOMPLEX(p->vtype) ) |
| 313 | putcxop(p); |
| 314 | else if( ISCOMPLEX(p->leftp->vtype) ) |
| 315 | { |
| 316 | ncomma = 0; |
| 317 | putx( mkconv(p->vtype, |
| 318 | realpart(putcx1(p->leftp, &ncomma)))); |
| 319 | putcomma(ncomma, p->vtype, NO); |
| 320 | free(p); |
| 321 | } |
| 322 | else goto putopp; |
| 323 | break; |
| 324 | |
| 325 | case OPNOT: |
| 326 | case OPOR: |
| 327 | case OPAND: |
| 328 | case OPEQV: |
| 329 | case OPNEQV: |
| 330 | case OPADDR: |
| 331 | case OPPLUSEQ: |
| 332 | case OPSTAREQ: |
| 333 | case OPCOMMA: |
| 334 | case OPQUEST: |
| 335 | case OPCOLON: |
| 336 | case OPBITOR: |
| 337 | case OPBITAND: |
| 338 | case OPBITXOR: |
| 339 | case OPBITNOT: |
| 340 | case OPLSHIFT: |
| 341 | case OPRSHIFT: |
| 342 | putopp: |
| 343 | putop(p); |
| 344 | break; |
| 345 | |
| 346 | default: |
| 347 | fatal1("putx: invalid opcode %d", opc); |
| 348 | } |
| 349 | break; |
| 350 | |
| 351 | case TADDR: |
| 352 | putaddr(p, YES); |
| 353 | break; |
| 354 | |
| 355 | default: |
| 356 | fatal1("putx: impossible tag %d", p->tag); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | |
| 361 | |
| 362 | LOCAL putop(p) |
| 363 | expptr p; |
| 364 | { |
| 365 | int k; |
| 366 | expptr lp, tp; |
| 367 | int pt, lt; |
| 368 | int comma; |
| 369 | |
| 370 | switch(p->opcode) /* check for special cases and rewrite */ |
| 371 | { |
| 372 | case OPCONV: |
| 373 | pt = p->vtype; |
| 374 | lp = p->leftp; |
| 375 | lt = lp->vtype; |
| 376 | while(p->tag==TEXPR && p->opcode==OPCONV && |
| 377 | ( (ISREAL(pt)&&ISREAL(lt)) || |
| 378 | (INT(pt)&&(ONEOF(lt,MSKINT|MSKADDR|MSKCHAR))) )) |
| 379 | { |
| 380 | #if SZINT < SZLONG |
| 381 | if(lp->tag != TEXPR) |
| 382 | { |
| 383 | if(pt==TYINT && lt==TYLONG) |
| 384 | break; |
| 385 | if(lt==TYINT && pt==TYLONG) |
| 386 | break; |
| 387 | } |
| 388 | #endif |
| 389 | free(p); |
| 390 | p = lp; |
| 391 | pt = lt; |
| 392 | lp = p->leftp; |
| 393 | lt = lp->vtype; |
| 394 | } |
| 395 | if(p->tag==TEXPR && p->opcode==OPCONV) |
| 396 | break; |
| 397 | putx(p); |
| 398 | return; |
| 399 | |
| 400 | case OPADDR: |
| 401 | comma = NO; |
| 402 | lp = p->leftp; |
| 403 | if(lp->tag != TADDR) |
| 404 | { |
| 405 | tp = mktemp(lp->vtype, lp->vleng); |
| 406 | putx( mkexpr(OPASSIGN, cpexpr(tp), lp) ); |
| 407 | lp = tp; |
| 408 | comma = YES; |
| 409 | } |
| 410 | putaddr(lp, NO); |
| 411 | if(comma) |
| 412 | putcomma(1, TYINT, NO); |
| 413 | free(p); |
| 414 | return; |
| 415 | } |
| 416 | |
| 417 | if( (k = ops2[p->opcode]) <= 0) |
| 418 | fatal1("putop: invalid opcode %d", p->opcode); |
| 419 | putx(p->leftp); |
| 420 | if(p->rightp) |
| 421 | putx(p->rightp); |
| 422 | p2op(k, types2[p->vtype]); |
| 423 | |
| 424 | if(p->vleng) |
| 425 | frexpr(p->vleng); |
| 426 | free(p); |
| 427 | } |
| 428 | \f |
| 429 | putforce(t, p) |
| 430 | int t; |
| 431 | expptr p; |
| 432 | { |
| 433 | p = mkconv(t, fixtype(p)); |
| 434 | putx(p); |
| 435 | p2op(P2FORCE, |
| 436 | (t==TYSHORT ? P2SHORT : (t==TYLONG ? P2LONG : P2DREAL)) ); |
| 437 | putstmt(); |
| 438 | } |
| 439 | |
| 440 | |
| 441 | |
| 442 | LOCAL putpower(p) |
| 443 | expptr p; |
| 444 | { |
| 445 | expptr base; |
| 446 | struct addrblock *t1, *t2; |
| 447 | ftnint k; |
| 448 | int type; |
| 449 | int ncomma; |
| 450 | |
| 451 | if(!ISICON(p->rightp) || (k = p->rightp->const.ci)<2) |
| 452 | fatal("putpower: bad call"); |
| 453 | base = p->leftp; |
| 454 | type = base->vtype; |
| 455 | t1 = mktemp(type, NULL); |
| 456 | t2 = NULL; |
| 457 | ncomma = 1; |
| 458 | putassign(cpexpr(t1), cpexpr(base) ); |
| 459 | |
| 460 | for( ; (k&1)==0 && k>2 ; k>>=1 ) |
| 461 | { |
| 462 | ++ncomma; |
| 463 | putsteq(t1, t1); |
| 464 | } |
| 465 | |
| 466 | if(k == 2) |
| 467 | putx( mkexpr(OPSTAR, cpexpr(t1), cpexpr(t1)) ); |
| 468 | else |
| 469 | { |
| 470 | t2 = mktemp(type, NULL); |
| 471 | ++ncomma; |
| 472 | putassign(cpexpr(t2), cpexpr(t1)); |
| 473 | |
| 474 | for(k>>=1 ; k>1 ; k>>=1) |
| 475 | { |
| 476 | ++ncomma; |
| 477 | putsteq(t1, t1); |
| 478 | if(k & 1) |
| 479 | { |
| 480 | ++ncomma; |
| 481 | putsteq(t2, t1); |
| 482 | } |
| 483 | } |
| 484 | putx( mkexpr(OPSTAR, cpexpr(t2), |
| 485 | mkexpr(OPSTAR, cpexpr(t1), cpexpr(t1)) )); |
| 486 | } |
| 487 | putcomma(ncomma, type, NO); |
| 488 | frexpr(t1); |
| 489 | if(t2) |
| 490 | frexpr(t2); |
| 491 | frexpr(p); |
| 492 | } |
| 493 | |
| 494 | |
| 495 | |
| 496 | |
| 497 | LOCAL struct addrblock *intdouble(p, ncommap) |
| 498 | struct addrblock *p; |
| 499 | int *ncommap; |
| 500 | { |
| 501 | register struct addrblock *t; |
| 502 | |
| 503 | t = mktemp(TYDREAL, NULL); |
| 504 | ++*ncommap; |
| 505 | putassign(cpexpr(t), p); |
| 506 | return(t); |
| 507 | } |
| 508 | |
| 509 | |
| 510 | |
| 511 | |
| 512 | |
| 513 | LOCAL putcxeq(p) |
| 514 | register struct exprblock *p; |
| 515 | { |
| 516 | register struct addrblock *lp, *rp; |
| 517 | int ncomma; |
| 518 | |
| 519 | ncomma = 0; |
| 520 | lp = putcx1(p->leftp, &ncomma); |
| 521 | rp = putcx1(p->rightp, &ncomma); |
| 522 | putassign(realpart(lp), realpart(rp)); |
| 523 | if( ISCOMPLEX(p->vtype) ) |
| 524 | { |
| 525 | ++ncomma; |
| 526 | putassign(imagpart(lp), imagpart(rp)); |
| 527 | } |
| 528 | putcomma(ncomma, TYREAL, NO); |
| 529 | frexpr(rp); |
| 530 | free(p); |
| 531 | return(lp); |
| 532 | } |
| 533 | |
| 534 | |
| 535 | |
| 536 | LOCAL putcxop(p) |
| 537 | expptr p; |
| 538 | { |
| 539 | struct addrblock *putcx1(); |
| 540 | int ncomma; |
| 541 | |
| 542 | ncomma = 0; |
| 543 | putaddr( putcx1(p, &ncomma), NO); |
| 544 | putcomma(ncomma, TYINT, NO); |
| 545 | } |
| 546 | |
| 547 | |
| 548 | |
| 549 | LOCAL struct addrblock *putcx1(p, ncommap) |
| 550 | register expptr p; |
| 551 | int *ncommap; |
| 552 | { |
| 553 | struct addrblock *q, *lp, *rp; |
| 554 | register struct addrblock *resp; |
| 555 | int opcode; |
| 556 | int ltype, rtype; |
| 557 | |
| 558 | if(p == NULL) |
| 559 | return(NULL); |
| 560 | |
| 561 | switch(p->tag) |
| 562 | { |
| 563 | case TCONST: |
| 564 | if( ISCOMPLEX(p->vtype) ) |
| 565 | p = putconst(p); |
| 566 | return( p ); |
| 567 | |
| 568 | case TADDR: |
| 569 | if( ! addressable(p) ) |
| 570 | { |
| 571 | ++*ncommap; |
| 572 | resp = mktemp(tyint, NULL); |
| 573 | putassign( cpexpr(resp), p->memoffset ); |
| 574 | p->memoffset = resp; |
| 575 | } |
| 576 | return( p ); |
| 577 | |
| 578 | case TEXPR: |
| 579 | if( ISCOMPLEX(p->vtype) ) |
| 580 | break; |
| 581 | ++*ncommap; |
| 582 | resp = mktemp(TYDREAL, NO); |
| 583 | putassign( cpexpr(resp), p); |
| 584 | return(resp); |
| 585 | |
| 586 | default: |
| 587 | fatal1("putcx1: bad tag %d", p->tag); |
| 588 | } |
| 589 | |
| 590 | opcode = p->opcode; |
| 591 | if(opcode==OPCALL || opcode==OPCCALL) |
| 592 | { |
| 593 | ++*ncommap; |
| 594 | return( putcall(p) ); |
| 595 | } |
| 596 | else if(opcode == OPASSIGN) |
| 597 | { |
| 598 | ++*ncommap; |
| 599 | return( putcxeq(p) ); |
| 600 | } |
| 601 | resp = mktemp(p->vtype, NULL); |
| 602 | if(lp = putcx1(p->leftp, ncommap) ) |
| 603 | ltype = lp->vtype; |
| 604 | if(rp = putcx1(p->rightp, ncommap) ) |
| 605 | rtype = rp->vtype; |
| 606 | |
| 607 | switch(opcode) |
| 608 | { |
| 609 | case OPCOMMA: |
| 610 | frexpr(resp); |
| 611 | resp = rp; |
| 612 | rp = NULL; |
| 613 | break; |
| 614 | |
| 615 | case OPNEG: |
| 616 | putassign( realpart(resp), mkexpr(OPNEG, realpart(lp), NULL) ); |
| 617 | putassign( imagpart(resp), mkexpr(OPNEG, imagpart(lp), NULL) ); |
| 618 | *ncommap += 2; |
| 619 | break; |
| 620 | |
| 621 | case OPPLUS: |
| 622 | case OPMINUS: |
| 623 | putassign( realpart(resp), mkexpr(opcode, realpart(lp), realpart(rp) )); |
| 624 | if(rtype < TYCOMPLEX) |
| 625 | putassign( imagpart(resp), imagpart(lp) ); |
| 626 | else if(ltype < TYCOMPLEX) |
| 627 | { |
| 628 | if(opcode == OPPLUS) |
| 629 | putassign( imagpart(resp), imagpart(rp) ); |
| 630 | else putassign( imagpart(resp), mkexpr(OPNEG, imagpart(rp), NULL) ); |
| 631 | } |
| 632 | else |
| 633 | putassign( imagpart(resp), mkexpr(opcode, imagpart(lp), imagpart(rp) )); |
| 634 | |
| 635 | *ncommap += 2; |
| 636 | break; |
| 637 | |
| 638 | case OPSTAR: |
| 639 | if(ltype < TYCOMPLEX) |
| 640 | { |
| 641 | if( ISINT(ltype) ) |
| 642 | lp = intdouble(lp, ncommap); |
| 643 | putassign( realpart(resp), mkexpr(OPSTAR, cpexpr(lp), realpart(rp) )); |
| 644 | putassign( imagpart(resp), mkexpr(OPSTAR, cpexpr(lp), imagpart(rp) )); |
| 645 | } |
| 646 | else if(rtype < TYCOMPLEX) |
| 647 | { |
| 648 | if( ISINT(rtype) ) |
| 649 | rp = intdouble(rp, ncommap); |
| 650 | putassign( realpart(resp), mkexpr(OPSTAR, cpexpr(rp), realpart(lp) )); |
| 651 | putassign( imagpart(resp), mkexpr(OPSTAR, cpexpr(rp), imagpart(lp) )); |
| 652 | } |
| 653 | else { |
| 654 | putassign( realpart(resp), mkexpr(OPMINUS, |
| 655 | mkexpr(OPSTAR, realpart(lp), realpart(rp)), |
| 656 | mkexpr(OPSTAR, imagpart(lp), imagpart(rp)) )); |
| 657 | putassign( imagpart(resp), mkexpr(OPPLUS, |
| 658 | mkexpr(OPSTAR, realpart(lp), imagpart(rp)), |
| 659 | mkexpr(OPSTAR, imagpart(lp), realpart(rp)) )); |
| 660 | } |
| 661 | *ncommap += 2; |
| 662 | break; |
| 663 | |
| 664 | case OPSLASH: |
| 665 | /* fixexpr has already replaced all divisions |
| 666 | * by a complex by a function call |
| 667 | */ |
| 668 | if( ISINT(rtype) ) |
| 669 | rp = intdouble(rp, ncommap); |
| 670 | putassign( realpart(resp), mkexpr(OPSLASH, realpart(lp), cpexpr(rp)) ); |
| 671 | putassign( imagpart(resp), mkexpr(OPSLASH, imagpart(lp), cpexpr(rp)) ); |
| 672 | *ncommap += 2; |
| 673 | break; |
| 674 | |
| 675 | case OPCONV: |
| 676 | putassign( realpart(resp), realpart(lp) ); |
| 677 | if( ISCOMPLEX(lp->vtype) ) |
| 678 | q = imagpart(lp); |
| 679 | else if(rp != NULL) |
| 680 | q = realpart(rp); |
| 681 | else |
| 682 | q = mkrealcon(TYDREAL, 0.0); |
| 683 | putassign( imagpart(resp), q); |
| 684 | *ncommap += 2; |
| 685 | break; |
| 686 | |
| 687 | default: |
| 688 | fatal1("putcx1 of invalid opcode %d", opcode); |
| 689 | } |
| 690 | |
| 691 | frexpr(lp); |
| 692 | frexpr(rp); |
| 693 | free(p); |
| 694 | return(resp); |
| 695 | } |
| 696 | |
| 697 | |
| 698 | |
| 699 | |
| 700 | LOCAL putcxcmp(p) |
| 701 | register struct exprblock *p; |
| 702 | { |
| 703 | int opcode; |
| 704 | int ncomma; |
| 705 | register struct addrblock *lp, *rp; |
| 706 | struct exprblock *q; |
| 707 | |
| 708 | ncomma = 0; |
| 709 | opcode = p->opcode; |
| 710 | lp = putcx1(p->leftp, &ncomma); |
| 711 | rp = putcx1(p->rightp, &ncomma); |
| 712 | |
| 713 | q = mkexpr( opcode==OPEQ ? OPAND : OPOR , |
| 714 | mkexpr(opcode, realpart(lp), realpart(rp)), |
| 715 | mkexpr(opcode, imagpart(lp), imagpart(rp)) ); |
| 716 | putx( fixexpr(q) ); |
| 717 | putcomma(ncomma, TYINT, NO); |
| 718 | |
| 719 | free(lp); |
| 720 | free(rp); |
| 721 | free(p); |
| 722 | } |
| 723 | \f |
| 724 | LOCAL struct addrblock *putch1(p, ncommap) |
| 725 | register expptr p; |
| 726 | int * ncommap; |
| 727 | { |
| 728 | register struct addrblock *t; |
| 729 | struct addrblock *mktemp(), *putconst(); |
| 730 | |
| 731 | switch(p->tag) |
| 732 | { |
| 733 | case TCONST: |
| 734 | return( putconst(p) ); |
| 735 | |
| 736 | case TADDR: |
| 737 | return(p); |
| 738 | |
| 739 | case TEXPR: |
| 740 | ++*ncommap; |
| 741 | |
| 742 | switch(p->opcode) |
| 743 | { |
| 744 | case OPCALL: |
| 745 | case OPCCALL: |
| 746 | t = putcall(p); |
| 747 | break; |
| 748 | |
| 749 | case OPCONCAT: |
| 750 | t = mktemp(TYCHAR, cpexpr(p->vleng) ); |
| 751 | putcat( cpexpr(t), p ); |
| 752 | break; |
| 753 | |
| 754 | case OPCONV: |
| 755 | if(!ISICON(p->vleng) || p->vleng->const.ci!=1 |
| 756 | || ! INT(p->leftp->vtype) ) |
| 757 | fatal("putch1: bad character conversion"); |
| 758 | t = mktemp(TYCHAR, ICON(1) ); |
| 759 | putassign( cpexpr(t), p); |
| 760 | break; |
| 761 | default: |
| 762 | fatal1("putch1: invalid opcode %d", p->opcode); |
| 763 | } |
| 764 | return(t); |
| 765 | |
| 766 | default: |
| 767 | fatal1("putch1: bad tag %d", p->tag); |
| 768 | } |
| 769 | /* NOTREACHED */ |
| 770 | } |
| 771 | \f |
| 772 | |
| 773 | |
| 774 | |
| 775 | LOCAL putchop(p) |
| 776 | expptr p; |
| 777 | { |
| 778 | int ncomma; |
| 779 | |
| 780 | ncomma = 0; |
| 781 | putaddr( putch1(p, &ncomma) , NO ); |
| 782 | putcomma(ncomma, TYCHAR, YES); |
| 783 | } |
| 784 | |
| 785 | |
| 786 | |
| 787 | |
| 788 | LOCAL putcheq(p) |
| 789 | register struct exprblock *p; |
| 790 | { |
| 791 | int ncomma; |
| 792 | |
| 793 | ncomma = 0; |
| 794 | if( p->rightp->tag==TEXPR && p->rightp->opcode==OPCONCAT ) |
| 795 | putcat(p->leftp, p->rightp); |
| 796 | else if( ISONE(p->leftp->vleng) && ISONE(p->rightp->vleng) ) |
| 797 | { |
| 798 | putaddr( putch1(p->leftp, &ncomma) , YES ); |
| 799 | putaddr( putch1(p->rightp, &ncomma) , YES ); |
| 800 | p2op(P2ASSIGN, P2CHAR); |
| 801 | } |
| 802 | else putx( call2(TYINT, "s_copy", p->leftp, p->rightp) ); |
| 803 | |
| 804 | putcomma(ncomma, TYINT, NO); |
| 805 | frexpr(p->vleng); |
| 806 | free(p); |
| 807 | } |
| 808 | |
| 809 | |
| 810 | |
| 811 | |
| 812 | LOCAL putchcmp(p) |
| 813 | register struct exprblock *p; |
| 814 | { |
| 815 | int ncomma; |
| 816 | |
| 817 | ncomma = 0; |
| 818 | if(ISONE(p->leftp->vleng) && ISONE(p->rightp->vleng) ) |
| 819 | { |
| 820 | putaddr( putch1(p->leftp, &ncomma) , YES ); |
| 821 | putaddr( putch1(p->rightp, &ncomma) , YES ); |
| 822 | p2op(ops2[p->opcode], P2CHAR); |
| 823 | free(p); |
| 824 | putcomma(ncomma, TYINT, NO); |
| 825 | } |
| 826 | else |
| 827 | { |
| 828 | p->leftp = call2(TYINT,"s_cmp", p->leftp, p->rightp); |
| 829 | p->rightp = ICON(0); |
| 830 | putop(p); |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | |
| 835 | |
| 836 | |
| 837 | |
| 838 | LOCAL putcat(lhs, rhs) |
| 839 | register struct addrblock *lhs; |
| 840 | register expptr rhs; |
| 841 | { |
| 842 | int n, ncomma; |
| 843 | struct addrblock *lp, *cp; |
| 844 | |
| 845 | ncomma = 0; |
| 846 | n = ncat(rhs); |
| 847 | lp = mktmpn(n, TYLENG, NULL); |
| 848 | cp = mktmpn(n, TYADDR, NULL); |
| 849 | |
| 850 | n = 0; |
| 851 | putct1(rhs, lp, cp, &n, &ncomma); |
| 852 | |
| 853 | putx( call4(TYSUBR, "s_cat", lhs, cp, lp, ICON(n) ) ); |
| 854 | putcomma(ncomma, TYINT, NO); |
| 855 | } |
| 856 | |
| 857 | |
| 858 | |
| 859 | |
| 860 | |
| 861 | LOCAL ncat(p) |
| 862 | register expptr p; |
| 863 | { |
| 864 | if(p->tag==TEXPR && p->opcode==OPCONCAT) |
| 865 | return( ncat(p->leftp) + ncat(p->rightp) ); |
| 866 | else return(1); |
| 867 | } |
| 868 | |
| 869 | |
| 870 | |
| 871 | |
| 872 | LOCAL putct1(q, lp, cp, ip, ncommap) |
| 873 | register expptr q; |
| 874 | register struct addrblock *lp, *cp; |
| 875 | int *ip, *ncommap; |
| 876 | { |
| 877 | int i; |
| 878 | struct addrblock *lp1, *cp1; |
| 879 | |
| 880 | if(q->tag==TEXPR && q->opcode==OPCONCAT) |
| 881 | { |
| 882 | putct1(q->leftp, lp, cp, ip, ncommap); |
| 883 | putct1(q->rightp, lp, cp , ip, ncommap); |
| 884 | frexpr(q->vleng); |
| 885 | free(q); |
| 886 | } |
| 887 | else |
| 888 | { |
| 889 | i = (*ip)++; |
| 890 | lp1 = cpexpr(lp); |
| 891 | lp1->memoffset = mkexpr(OPPLUS, lp1->memoffset, ICON(i*SZLENG)); |
| 892 | cp1 = cpexpr(cp); |
| 893 | cp1->memoffset = mkexpr(OPPLUS, cp1->memoffset, ICON(i*SZADDR)); |
| 894 | putassign( lp1, cpexpr(q->vleng) ); |
| 895 | putassign( cp1, addrof(putch1(q,ncommap)) ); |
| 896 | *ncommap += 2; |
| 897 | } |
| 898 | } |
| 899 | \f |
| 900 | LOCAL putaddr(p, indir) |
| 901 | register struct addrblock *p; |
| 902 | int indir; |
| 903 | { |
| 904 | int type, type2, funct; |
| 905 | ftnint offset, simoffset(); |
| 906 | expptr offp, shorten(); |
| 907 | |
| 908 | type = p->vtype; |
| 909 | type2 = types2[type]; |
| 910 | funct = (p->vclass==CLPROC ? P2FUNCT<<2 : 0); |
| 911 | |
| 912 | offp = (p->memoffset ? cpexpr(p->memoffset) : NULL); |
| 913 | |
| 914 | |
| 915 | #if (FUDGEOFFSET != 1) |
| 916 | if(offp) |
| 917 | offp = mkexpr(OPSTAR, ICON(FUDGEOFFSET), offp); |
| 918 | #endif |
| 919 | |
| 920 | offset = simoffset( &offp ); |
| 921 | #if SZINT < SZLONG |
| 922 | if(offp) |
| 923 | if(shortsubs) |
| 924 | offp = shorten(offp); |
| 925 | else |
| 926 | offp = mkconv(TYINT, offp); |
| 927 | #else |
| 928 | if(offp) |
| 929 | offp = mkconv(TYINT, offp); |
| 930 | #endif |
| 931 | |
| 932 | switch(p->vstg) |
| 933 | { |
| 934 | case STGAUTO: |
| 935 | if(indir && !offp) |
| 936 | { |
| 937 | p2oreg(offset, AUTOREG, type2); |
| 938 | break; |
| 939 | } |
| 940 | |
| 941 | if(!indir && !offp && !offset) |
| 942 | { |
| 943 | p2reg(AUTOREG, type2 | P2PTR); |
| 944 | break; |
| 945 | } |
| 946 | |
| 947 | p2reg(AUTOREG, type2 | P2PTR); |
| 948 | if(offp) |
| 949 | { |
| 950 | putx(offp); |
| 951 | if(offset) |
| 952 | p2icon(offset, P2INT); |
| 953 | } |
| 954 | else |
| 955 | p2icon(offset, P2INT); |
| 956 | if(offp && offset) |
| 957 | p2op(P2PLUS, type2 | P2PTR); |
| 958 | p2op(P2PLUS, type2 | P2PTR); |
| 959 | if(offp && offset) |
| 960 | if(indir) |
| 961 | p2op(P2INDIRECT, type2); |
| 962 | break; |
| 963 | |
| 964 | case STGARG: |
| 965 | p2oreg( |
| 966 | #ifdef ARGOFFSET |
| 967 | ARGOFFSET + |
| 968 | #endif |
| 969 | (ftnint) (FUDGEOFFSET*p->memno), |
| 970 | ARGREG, type2 | P2PTR | funct ); |
| 971 | |
| 972 | if(offp) |
| 973 | putx(offp); |
| 974 | if(offset) |
| 975 | p2icon(offset, P2INT); |
| 976 | if(offp && offset) |
| 977 | p2op(P2PLUS, type2 | P2PTR); |
| 978 | if(offp || offset) |
| 979 | p2op(P2PLUS, type2 | P2PTR); |
| 980 | if(indir) |
| 981 | p2op(P2INDIRECT, type2); |
| 982 | break; |
| 983 | |
| 984 | case STGLENG: |
| 985 | if(indir) |
| 986 | { |
| 987 | p2oreg( |
| 988 | #ifdef ARGOFFSET |
| 989 | ARGOFFSET + |
| 990 | #endif |
| 991 | (ftnint) (FUDGEOFFSET*p->memno), |
| 992 | ARGREG, type2 | P2PTR | funct); |
| 993 | } |
| 994 | else { |
| 995 | p2op(P2PLUS, types2[TYLENG] | P2PTR ); |
| 996 | p2reg(ARGREG, types2[TYLENG] | P2PTR ); |
| 997 | p2icon( |
| 998 | #ifdef ARGOFFSET |
| 999 | ARGOFFSET + |
| 1000 | #endif |
| 1001 | (ftnint) (FUDGEOFFSET*p->memno), P2INT); |
| 1002 | } |
| 1003 | break; |
| 1004 | |
| 1005 | |
| 1006 | case STGBSS: |
| 1007 | case STGINIT: |
| 1008 | case STGEXT: |
| 1009 | case STGCOMMON: |
| 1010 | case STGEQUIV: |
| 1011 | case STGCONST: |
| 1012 | if(offp) |
| 1013 | { |
| 1014 | putx(offp); |
| 1015 | putmem(p, P2ICON, offset); |
| 1016 | p2op(P2PLUS, type2 | P2PTR); |
| 1017 | if(indir) |
| 1018 | p2op(P2INDIRECT, type2); |
| 1019 | } |
| 1020 | else |
| 1021 | putmem(p, (indir ? P2NAME : P2ICON), offset); |
| 1022 | |
| 1023 | break; |
| 1024 | |
| 1025 | case STGREG: |
| 1026 | if(indir) |
| 1027 | p2reg(p->memno, type2); |
| 1028 | else |
| 1029 | fatal("attempt to take address of a register"); |
| 1030 | break; |
| 1031 | |
| 1032 | default: |
| 1033 | fatal1("putaddr: invalid vstg %d", p->vstg); |
| 1034 | } |
| 1035 | frexpr(p); |
| 1036 | } |
| 1037 | |
| 1038 | |
| 1039 | |
| 1040 | |
| 1041 | LOCAL putmem(p, class, offset) |
| 1042 | expptr p; |
| 1043 | int class; |
| 1044 | ftnint offset; |
| 1045 | { |
| 1046 | int type2; |
| 1047 | int funct; |
| 1048 | char *name, *memname(); |
| 1049 | |
| 1050 | funct = (p->vclass==CLPROC ? P2FUNCT<<2 : 0); |
| 1051 | type2 = types2[p->vtype]; |
| 1052 | if(p->vclass == CLPROC) |
| 1053 | type2 |= (P2FUNCT<<2); |
| 1054 | name = memname(p->vstg, p->memno); |
| 1055 | if(class == P2ICON) |
| 1056 | { |
| 1057 | p2triple(P2ICON, name[0]!='\0', type2|P2PTR); |
| 1058 | p2word(offset); |
| 1059 | if(name[0]) |
| 1060 | p2name(name); |
| 1061 | } |
| 1062 | else |
| 1063 | { |
| 1064 | p2triple(P2NAME, offset!=0, type2); |
| 1065 | if(offset != 0) |
| 1066 | p2word(offset); |
| 1067 | p2name(name); |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | |
| 1072 | \f |
| 1073 | LOCAL struct addrblock *putcall(p) |
| 1074 | struct exprblock *p; |
| 1075 | { |
| 1076 | chainp arglist, charsp, cp; |
| 1077 | int n, first; |
| 1078 | struct addrblock *t; |
| 1079 | struct exprblock *q; |
| 1080 | struct exprblock *fval; |
| 1081 | int type, type2, ctype, indir; |
| 1082 | |
| 1083 | type2 = types2[type = p->vtype]; |
| 1084 | charsp = NULL; |
| 1085 | indir = (p->opcode == OPCCALL); |
| 1086 | n = 0; |
| 1087 | first = YES; |
| 1088 | |
| 1089 | if(p->rightp) |
| 1090 | { |
| 1091 | arglist = p->rightp->listp; |
| 1092 | free(p->rightp); |
| 1093 | } |
| 1094 | else |
| 1095 | arglist = NULL; |
| 1096 | |
| 1097 | for(cp = arglist ; cp ; cp = cp->nextp) |
| 1098 | if(indir) |
| 1099 | ++n; |
| 1100 | else { |
| 1101 | q = cp->datap; |
| 1102 | if(q->tag == TCONST) |
| 1103 | cp->datap = q = putconst(q); |
| 1104 | if( ISCHAR(q) ) |
| 1105 | { |
| 1106 | charsp = hookup(charsp, mkchain(cpexpr(q->vleng), 0) ); |
| 1107 | n += 2; |
| 1108 | } |
| 1109 | else if(q->vclass == CLPROC) |
| 1110 | { |
| 1111 | charsp = hookup(charsp, mkchain( ICON(0) , 0)); |
| 1112 | n += 2; |
| 1113 | } |
| 1114 | else |
| 1115 | n += 1; |
| 1116 | } |
| 1117 | |
| 1118 | if(type == TYCHAR) |
| 1119 | { |
| 1120 | if( ISICON(p->vleng) ) |
| 1121 | { |
| 1122 | fval = mktemp(TYCHAR, p->vleng); |
| 1123 | n += 2; |
| 1124 | } |
| 1125 | else { |
| 1126 | err("adjustable character function"); |
| 1127 | return; |
| 1128 | } |
| 1129 | } |
| 1130 | else if( ISCOMPLEX(type) ) |
| 1131 | { |
| 1132 | fval = mktemp(type, NULL); |
| 1133 | n += 1; |
| 1134 | } |
| 1135 | else |
| 1136 | fval = NULL; |
| 1137 | |
| 1138 | ctype = (fval ? P2INT : type2); |
| 1139 | putaddr(p->leftp, NO); |
| 1140 | |
| 1141 | if(fval) |
| 1142 | { |
| 1143 | first = NO; |
| 1144 | putaddr( cpexpr(fval), NO); |
| 1145 | if(type==TYCHAR) |
| 1146 | { |
| 1147 | putx( cpexpr(p->vleng) ); |
| 1148 | p2op(P2LISTOP, type2); |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | for(cp = arglist ; cp ; cp = cp->nextp) |
| 1153 | { |
| 1154 | q = cp->datap; |
| 1155 | if(q->tag==TADDR && (indir || q->vstg!=STGREG) ) |
| 1156 | putaddr(q, indir && q->vtype!=TYCHAR); |
| 1157 | else if( ISCOMPLEX(q->vtype) ) |
| 1158 | putcxop(q); |
| 1159 | else if (ISCHAR(q) ) |
| 1160 | putchop(q); |
| 1161 | else if( ! ISERROR(q) ) |
| 1162 | { |
| 1163 | if(indir) |
| 1164 | putx(q); |
| 1165 | else { |
| 1166 | t = mktemp(q->vtype, q->vleng); |
| 1167 | putassign( cpexpr(t), q ); |
| 1168 | putaddr(t, NO); |
| 1169 | putcomma(1, q->vtype, YES); |
| 1170 | } |
| 1171 | } |
| 1172 | if(first) |
| 1173 | first = NO; |
| 1174 | else |
| 1175 | p2op(P2LISTOP, type2); |
| 1176 | } |
| 1177 | |
| 1178 | if(arglist) |
| 1179 | frchain(&arglist); |
| 1180 | for(cp = charsp ; cp ; cp = cp->nextp) |
| 1181 | { |
| 1182 | putx( mkconv(TYLENG,cp->datap) ); |
| 1183 | p2op(P2LISTOP, type2); |
| 1184 | } |
| 1185 | frchain(&charsp); |
| 1186 | p2op(n>0 ? P2CALL : P2CALL0 , ctype); |
| 1187 | free(p); |
| 1188 | return(fval); |
| 1189 | } |
| 1190 | |
| 1191 | |
| 1192 | |
| 1193 | LOCAL putmnmx(p) |
| 1194 | register struct exprblock *p; |
| 1195 | { |
| 1196 | int op, type; |
| 1197 | int ncomma; |
| 1198 | struct exprblock *qp; |
| 1199 | chainp p0, p1; |
| 1200 | struct addrblock *sp, *tp; |
| 1201 | |
| 1202 | type = p->vtype; |
| 1203 | op = (p->opcode==OPMIN ? OPLT : OPGT ); |
| 1204 | p0 = p->leftp->listp; |
| 1205 | free(p->leftp); |
| 1206 | free(p); |
| 1207 | |
| 1208 | sp = mktemp(type, NULL); |
| 1209 | tp = mktemp(type, NULL); |
| 1210 | qp = mkexpr(OPCOLON, cpexpr(tp), cpexpr(sp)); |
| 1211 | qp = mkexpr(OPQUEST, mkexpr(op, cpexpr(tp),cpexpr(sp)), qp); |
| 1212 | qp = fixexpr(qp); |
| 1213 | |
| 1214 | ncomma = 1; |
| 1215 | putassign( cpexpr(sp), p0->datap ); |
| 1216 | |
| 1217 | for(p1 = p0->nextp ; p1 ; p1 = p1->nextp) |
| 1218 | { |
| 1219 | ++ncomma; |
| 1220 | putassign( cpexpr(tp), p1->datap ); |
| 1221 | if(p1->nextp) |
| 1222 | { |
| 1223 | ++ncomma; |
| 1224 | putassign( cpexpr(sp), cpexpr(qp) ); |
| 1225 | } |
| 1226 | else |
| 1227 | putx(qp); |
| 1228 | } |
| 1229 | |
| 1230 | putcomma(ncomma, type, NO); |
| 1231 | frtemp(sp); |
| 1232 | frtemp(tp); |
| 1233 | frchain( &p0 ); |
| 1234 | } |
| 1235 | |
| 1236 | |
| 1237 | |
| 1238 | |
| 1239 | LOCAL putcomma(n, type, indir) |
| 1240 | int n, type, indir; |
| 1241 | { |
| 1242 | type = types2[type]; |
| 1243 | if(indir) |
| 1244 | type |= P2PTR; |
| 1245 | while(--n >= 0) |
| 1246 | p2op(P2COMOP, type); |
| 1247 | } |
| 1248 | |
| 1249 | |
| 1250 | |
| 1251 | |
| 1252 | ftnint simoffset(p0) |
| 1253 | expptr *p0; |
| 1254 | { |
| 1255 | ftnint offset, prod; |
| 1256 | register expptr p, lp, rp; |
| 1257 | |
| 1258 | offset = 0; |
| 1259 | p = *p0; |
| 1260 | if(p == NULL) |
| 1261 | return(0); |
| 1262 | |
| 1263 | if( ! ISINT(p->vtype) ) |
| 1264 | return(0); |
| 1265 | |
| 1266 | if(p->tag==TEXPR && p->opcode==OPSTAR) |
| 1267 | { |
| 1268 | lp = p->leftp; |
| 1269 | rp = p->rightp; |
| 1270 | if(ISICON(rp) && lp->tag==TEXPR && lp->opcode==OPPLUS && ISICON(lp->rightp)) |
| 1271 | { |
| 1272 | p->opcode = OPPLUS; |
| 1273 | lp->opcode = OPSTAR; |
| 1274 | prod = rp->const.ci * lp->rightp->const.ci; |
| 1275 | lp->rightp->const.ci = rp->const.ci; |
| 1276 | rp->const.ci = prod; |
| 1277 | } |
| 1278 | } |
| 1279 | |
| 1280 | if(p->tag==TEXPR && p->opcode==OPPLUS && ISICON(p->rightp)) |
| 1281 | { |
| 1282 | rp = p->rightp; |
| 1283 | lp = p->leftp; |
| 1284 | offset += rp->const.ci; |
| 1285 | frexpr(rp); |
| 1286 | free(p); |
| 1287 | *p0 = lp; |
| 1288 | } |
| 1289 | |
| 1290 | if(p->tag == TCONST) |
| 1291 | { |
| 1292 | offset += p->const.ci; |
| 1293 | frexpr(p); |
| 1294 | *p0 = NULL; |
| 1295 | } |
| 1296 | |
| 1297 | return(offset); |
| 1298 | } |
| 1299 | \f |
| 1300 | |
| 1301 | |
| 1302 | |
| 1303 | |
| 1304 | p2op(op, type) |
| 1305 | int op, type; |
| 1306 | { |
| 1307 | p2triple(op, 0, type); |
| 1308 | } |
| 1309 | |
| 1310 | p2icon(offset, type) |
| 1311 | ftnint offset; |
| 1312 | int type; |
| 1313 | { |
| 1314 | p2triple(P2ICON, 0, type); |
| 1315 | p2word(offset); |
| 1316 | } |
| 1317 | |
| 1318 | |
| 1319 | |
| 1320 | |
| 1321 | p2oreg(offset, reg, type) |
| 1322 | ftnint offset; |
| 1323 | int reg, type; |
| 1324 | { |
| 1325 | p2triple(P2OREG, reg, type); |
| 1326 | p2word(offset); |
| 1327 | p2name(""); |
| 1328 | } |
| 1329 | |
| 1330 | |
| 1331 | |
| 1332 | |
| 1333 | p2reg(reg, type) |
| 1334 | int reg, type; |
| 1335 | { |
| 1336 | p2triple(P2REG, reg, type); |
| 1337 | } |
| 1338 | |
| 1339 | |
| 1340 | |
| 1341 | p2pass(s) |
| 1342 | char *s; |
| 1343 | { |
| 1344 | p2triple(P2PASS, (strlen(s) + FOUR-1)/FOUR, 0); |
| 1345 | p2str(s); |
| 1346 | } |
| 1347 | |
| 1348 | |
| 1349 | |
| 1350 | |
| 1351 | p2str(s) |
| 1352 | register char *s; |
| 1353 | { |
| 1354 | union { long int word; char str[FOUR]; } u; |
| 1355 | register int i; |
| 1356 | |
| 1357 | i = 0; |
| 1358 | u.word = 0; |
| 1359 | while(*s) |
| 1360 | { |
| 1361 | u.str[i++] = *s++; |
| 1362 | if(i == FOUR) |
| 1363 | { |
| 1364 | p2word(u.word); |
| 1365 | u.word = 0; |
| 1366 | i = 0; |
| 1367 | } |
| 1368 | } |
| 1369 | if(i > 0) |
| 1370 | p2word(u.word); |
| 1371 | } |
| 1372 | |
| 1373 | |
| 1374 | |
| 1375 | |
| 1376 | p2triple(op, var, type) |
| 1377 | int op, var, type; |
| 1378 | { |
| 1379 | register long word; |
| 1380 | word = op | (var<<8); |
| 1381 | word |= ( (long int) type) <<16; |
| 1382 | p2word(word); |
| 1383 | } |
| 1384 | |
| 1385 | |
| 1386 | |
| 1387 | |
| 1388 | p2name(s) |
| 1389 | char *s; |
| 1390 | { |
| 1391 | int i; |
| 1392 | union { long int word[2]; char str[8]; } u; |
| 1393 | |
| 1394 | u.word[0] = u.word[1] = 0; |
| 1395 | for(i = 0 ; i<8 && *s ; ++i) |
| 1396 | u.str[i] = *s++; |
| 1397 | p2word(u.word[0]); |
| 1398 | p2word(u.word[1]); |
| 1399 | } |
| 1400 | |
| 1401 | |
| 1402 | |
| 1403 | |
| 1404 | p2word(w) |
| 1405 | long int w; |
| 1406 | { |
| 1407 | *p2bufp++ = w; |
| 1408 | if(p2bufp >= p2bufend) |
| 1409 | p2flush(); |
| 1410 | } |
| 1411 | |
| 1412 | |
| 1413 | |
| 1414 | p2flush() |
| 1415 | { |
| 1416 | if(p2bufp > p2buff) |
| 1417 | write(fileno(textfile), p2buff, (p2bufp-p2buff)*sizeof(long int)); |
| 1418 | p2bufp = p2buff; |
| 1419 | } |