1 /* vm/jit/i386/emit.c - i386 code emitter functions
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Christian Thalinger
29 $Id: emit.c 5102 2006-07-10 14:42:16Z twisti $
40 #include "vm/statistics.h"
41 #include "vm/jit/jit.h"
42 #include "vm/jit/i386/md-abi.h"
43 #include "vm/jit/i386/md-emit.h"
44 #include "vm/jit/i386/codegen.h"
47 /* emit_load_s1 ****************************************************************
49 Emits a possible load of the first source operand.
51 *******************************************************************************/
53 s4 emit_load_s1(jitdata *jd, instruction *iptr, stackptr src, s4 tempreg)
59 /* get required compiler data */
63 if (src->flags & INMEMORY) {
66 disp = src->regoff * 4;
68 if (IS_FLT_DBL_TYPE(src->type)) {
69 if (IS_2_WORD_TYPE(src->type))
70 M_DLD(tempreg, REG_SP, disp);
72 M_FLD(tempreg, REG_SP, disp);
75 if (IS_2_WORD_TYPE(src->type))
76 M_LLD(tempreg, REG_SP, disp);
78 M_ILD(tempreg, REG_SP, disp);
89 /* emit_load_s2 ****************************************************************
91 Emits a possible load of the second source operand.
93 *******************************************************************************/
95 s4 emit_load_s2(jitdata *jd, instruction *iptr, stackptr src, s4 tempreg)
101 /* get required compiler data */
105 if (src->flags & INMEMORY) {
108 disp = src->regoff * 4;
110 if (IS_FLT_DBL_TYPE(src->type)) {
111 if (IS_2_WORD_TYPE(src->type))
112 M_DLD(tempreg, REG_SP, disp);
114 M_FLD(tempreg, REG_SP, disp);
117 if (IS_2_WORD_TYPE(src->type))
118 M_LLD(tempreg, REG_SP, disp);
120 M_ILD(tempreg, REG_SP, disp);
131 /* emit_load_s3 ****************************************************************
133 Emits a possible load of the third source operand.
135 *******************************************************************************/
137 s4 emit_load_s3(jitdata *jd, instruction *iptr, stackptr src, s4 tempreg)
143 /* get required compiler data */
147 if (src->flags & INMEMORY) {
150 disp = src->regoff * 4;
152 if (IS_FLT_DBL_TYPE(src->type)) {
153 if (IS_2_WORD_TYPE(src->type))
154 M_DLD(tempreg, REG_SP, disp);
156 M_FLD(tempreg, REG_SP, disp);
159 if (IS_2_WORD_TYPE(src->type))
160 M_LLD(tempreg, REG_SP, disp);
162 M_ILD(tempreg, REG_SP, disp);
173 /* emit_store ******************************************************************
177 *******************************************************************************/
179 void emit_store(jitdata *jd, instruction *iptr, stackptr dst, s4 d)
183 /* get required compiler data */
187 if (dst->flags & INMEMORY) {
190 if (IS_FLT_DBL_TYPE(dst->type)) {
191 if (IS_2_WORD_TYPE(dst->type))
192 M_DST(d, REG_SP, dst->regoff * 4);
194 M_FST(d, REG_SP, dst->regoff * 4);
197 if (IS_2_WORD_TYPE(dst->type))
198 M_LST(d, REG_SP, dst->regoff * 4);
200 M_IST(d, REG_SP, dst->regoff * 4);
206 /* emit_copy *******************************************************************
210 *******************************************************************************/
212 void emit_copy(jitdata *jd, instruction *iptr, stackptr src, stackptr dst)
218 /* get required compiler data */
223 if ((src->regoff != dst->regoff) ||
224 ((src->flags ^ dst->flags) & INMEMORY)) {
225 if (IS_LNG_TYPE(src->type))
226 d = codegen_reg_of_var(rd, iptr->opc, dst, PACK_REGS(REG_ITMP1, REG_ITMP2));
228 d = codegen_reg_of_var(rd, iptr->opc, dst, REG_ITMP1);
230 s1 = emit_load_s1(jd, iptr, src, d);
233 if (IS_FLT_DBL_TYPE(src->type)) {
236 if (IS_2_WORD_TYPE(src->type))
243 emit_store(jd, iptr, dst, d);
248 void i386_emit_ialu(codegendata *cd, s4 alu_op, stackptr src, instruction *iptr)
250 if (iptr->dst->flags & INMEMORY) {
251 if ((src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
252 if (src->regoff == iptr->dst->regoff) {
253 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
254 i386_alu_reg_membase(cd, alu_op, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
256 } else if (src->prev->regoff == iptr->dst->regoff) {
257 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, REG_ITMP1);
258 i386_alu_reg_membase(cd, alu_op, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
261 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
262 i386_alu_membase_reg(cd, alu_op, REG_SP, src->regoff * 4, REG_ITMP1);
263 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
266 } else if ((src->flags & INMEMORY) && !(src->prev->flags & INMEMORY)) {
267 if (src->regoff == iptr->dst->regoff) {
268 i386_alu_reg_membase(cd, alu_op, src->prev->regoff, REG_SP, iptr->dst->regoff * 4);
271 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, REG_ITMP1);
272 i386_alu_reg_reg(cd, alu_op, src->prev->regoff, REG_ITMP1);
273 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
276 } else if (!(src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
277 if (src->prev->regoff == iptr->dst->regoff) {
278 i386_alu_reg_membase(cd, alu_op, src->regoff, REG_SP, iptr->dst->regoff * 4);
281 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
282 i386_alu_reg_reg(cd, alu_op, src->regoff, REG_ITMP1);
283 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
287 i386_mov_reg_membase(cd, src->prev->regoff, REG_SP, iptr->dst->regoff * 4);
288 i386_alu_reg_membase(cd, alu_op, src->regoff, REG_SP, iptr->dst->regoff * 4);
292 if ((src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
293 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, iptr->dst->regoff);
294 i386_alu_membase_reg(cd, alu_op, REG_SP, src->regoff * 4, iptr->dst->regoff);
296 } else if ((src->flags & INMEMORY) && !(src->prev->flags & INMEMORY)) {
297 if (src->prev->regoff != iptr->dst->regoff)
298 i386_mov_reg_reg(cd, src->prev->regoff, iptr->dst->regoff);
300 i386_alu_membase_reg(cd, alu_op, REG_SP, src->regoff * 4, iptr->dst->regoff);
302 } else if (!(src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
303 if (src->regoff != iptr->dst->regoff)
304 i386_mov_reg_reg(cd, src->regoff, iptr->dst->regoff);
306 i386_alu_membase_reg(cd, alu_op, REG_SP, src->prev->regoff * 4, iptr->dst->regoff);
309 if (src->regoff == iptr->dst->regoff) {
310 i386_alu_reg_reg(cd, alu_op, src->prev->regoff, iptr->dst->regoff);
313 if (src->prev->regoff != iptr->dst->regoff)
314 i386_mov_reg_reg(cd, src->prev->regoff, iptr->dst->regoff);
316 i386_alu_reg_reg(cd, alu_op, src->regoff, iptr->dst->regoff);
323 void i386_emit_ialuconst(codegendata *cd, s4 alu_op, stackptr src, instruction *iptr)
325 if (iptr->dst->flags & INMEMORY) {
326 if (src->flags & INMEMORY) {
327 if (src->regoff == iptr->dst->regoff) {
328 i386_alu_imm_membase(cd, alu_op, iptr->val.i, REG_SP, iptr->dst->regoff * 4);
331 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, REG_ITMP1);
332 i386_alu_imm_reg(cd, alu_op, iptr->val.i, REG_ITMP1);
333 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
337 i386_mov_reg_membase(cd, src->regoff, REG_SP, iptr->dst->regoff * 4);
338 i386_alu_imm_membase(cd, alu_op, iptr->val.i, REG_SP, iptr->dst->regoff * 4);
342 if (src->flags & INMEMORY) {
343 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, iptr->dst->regoff);
344 i386_alu_imm_reg(cd, alu_op, iptr->val.i, iptr->dst->regoff);
347 if (src->regoff != iptr->dst->regoff)
348 i386_mov_reg_reg(cd, src->regoff, iptr->dst->regoff);
350 /* `inc reg' is slower on p4's (regarding to ia32 optimization */
351 /* reference manual and benchmarks) and as fast on athlon's. */
352 i386_alu_imm_reg(cd, alu_op, iptr->val.i, iptr->dst->regoff);
358 void i386_emit_lalu(codegendata *cd, s4 alu_op, stackptr src, instruction *iptr)
360 if (iptr->dst->flags & INMEMORY) {
361 if ((src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
362 if (src->regoff == iptr->dst->regoff) {
363 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
364 i386_alu_reg_membase(cd, alu_op, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
365 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4 + 4, REG_ITMP1);
366 i386_alu_reg_membase(cd, alu_op, REG_ITMP1, REG_SP, iptr->dst->regoff * 4 + 4);
368 } else if (src->prev->regoff == iptr->dst->regoff) {
369 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, REG_ITMP1);
370 i386_alu_reg_membase(cd, alu_op, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
371 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4 + 4, REG_ITMP1);
372 i386_alu_reg_membase(cd, alu_op, REG_ITMP1, REG_SP, iptr->dst->regoff * 4 + 4);
375 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
376 i386_alu_membase_reg(cd, alu_op, REG_SP, src->regoff * 4, REG_ITMP1);
377 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
378 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4 + 4, REG_ITMP1);
379 i386_alu_membase_reg(cd, alu_op, REG_SP, src->regoff * 4 + 4, REG_ITMP1);
380 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4 + 4);
387 void i386_emit_laluconst(codegendata *cd, s4 alu_op, stackptr src, instruction *iptr)
389 if (iptr->dst->flags & INMEMORY) {
390 if (src->flags & INMEMORY) {
391 if (src->regoff == iptr->dst->regoff) {
392 i386_alu_imm_membase(cd, alu_op, iptr->val.l, REG_SP, iptr->dst->regoff * 4);
393 i386_alu_imm_membase(cd, alu_op, iptr->val.l >> 32, REG_SP, iptr->dst->regoff * 4 + 4);
396 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, REG_ITMP1);
397 i386_alu_imm_reg(cd, alu_op, iptr->val.l, REG_ITMP1);
398 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
399 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4 + 4, REG_ITMP1);
400 i386_alu_imm_reg(cd, alu_op, iptr->val.l >> 32, REG_ITMP1);
401 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4 + 4);
408 void i386_emit_ishift(codegendata *cd, s4 shift_op, stackptr src, instruction *iptr)
410 if (iptr->dst->flags & INMEMORY) {
411 if ((src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
412 if (src->prev->regoff == iptr->dst->regoff) {
413 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, ECX);
414 i386_shift_membase(cd, shift_op, REG_SP, iptr->dst->regoff * 4);
417 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, ECX);
418 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
419 i386_shift_reg(cd, shift_op, REG_ITMP1);
420 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
423 } else if ((src->flags & INMEMORY) && !(src->prev->flags & INMEMORY)) {
424 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, ECX);
425 i386_mov_reg_membase(cd, src->prev->regoff, REG_SP, iptr->dst->regoff * 4);
426 i386_shift_membase(cd, shift_op, REG_SP, iptr->dst->regoff * 4);
428 } else if (!(src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
429 if (src->prev->regoff == iptr->dst->regoff) {
430 if (src->regoff != ECX)
431 i386_mov_reg_reg(cd, src->regoff, ECX);
433 i386_shift_membase(cd, shift_op, REG_SP, iptr->dst->regoff * 4);
436 if (src->regoff != ECX)
437 i386_mov_reg_reg(cd, src->regoff, ECX);
439 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, REG_ITMP1);
440 i386_shift_reg(cd, shift_op, REG_ITMP1);
441 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
445 if (src->regoff != ECX)
446 i386_mov_reg_reg(cd, src->regoff, ECX);
448 i386_mov_reg_membase(cd, src->prev->regoff, REG_SP, iptr->dst->regoff * 4);
449 i386_shift_membase(cd, shift_op, REG_SP, iptr->dst->regoff * 4);
453 if ((src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
454 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, ECX);
455 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, iptr->dst->regoff);
456 i386_shift_reg(cd, shift_op, iptr->dst->regoff);
458 } else if ((src->flags & INMEMORY) && !(src->prev->flags & INMEMORY)) {
459 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, ECX);
461 if (src->prev->regoff != iptr->dst->regoff)
462 i386_mov_reg_reg(cd, src->prev->regoff, iptr->dst->regoff);
464 i386_shift_reg(cd, shift_op, iptr->dst->regoff);
466 } else if (!(src->flags & INMEMORY) && (src->prev->flags & INMEMORY)) {
467 if (src->regoff != ECX)
468 i386_mov_reg_reg(cd, src->regoff, ECX);
470 i386_mov_membase_reg(cd, REG_SP, src->prev->regoff * 4, iptr->dst->regoff);
471 i386_shift_reg(cd, shift_op, iptr->dst->regoff);
474 if (src->regoff != ECX)
475 i386_mov_reg_reg(cd, src->regoff, ECX);
477 if (src->prev->regoff != iptr->dst->regoff)
478 i386_mov_reg_reg(cd, src->prev->regoff, iptr->dst->regoff);
480 i386_shift_reg(cd, shift_op, iptr->dst->regoff);
486 void i386_emit_ishiftconst(codegendata *cd, s4 shift_op, stackptr src, instruction *iptr)
488 if ((src->flags & INMEMORY) && (iptr->dst->flags & INMEMORY)) {
489 if (src->regoff == iptr->dst->regoff) {
490 i386_shift_imm_membase(cd, shift_op, iptr->val.i, REG_SP, iptr->dst->regoff * 4);
493 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, REG_ITMP1);
494 i386_shift_imm_reg(cd, shift_op, iptr->val.i, REG_ITMP1);
495 i386_mov_reg_membase(cd, REG_ITMP1, REG_SP, iptr->dst->regoff * 4);
498 } else if ((src->flags & INMEMORY) && !(iptr->dst->flags & INMEMORY)) {
499 i386_mov_membase_reg(cd, REG_SP, src->regoff * 4, iptr->dst->regoff);
500 i386_shift_imm_reg(cd, shift_op, iptr->val.i, iptr->dst->regoff);
502 } else if (!(src->flags & INMEMORY) && (iptr->dst->flags & INMEMORY)) {
503 i386_mov_reg_membase(cd, src->regoff, REG_SP, iptr->dst->regoff * 4);
504 i386_shift_imm_membase(cd, shift_op, iptr->val.i, REG_SP, iptr->dst->regoff * 4);
507 if (src->regoff != iptr->dst->regoff)
508 i386_mov_reg_reg(cd, src->regoff, iptr->dst->regoff);
510 i386_shift_imm_reg(cd, shift_op, iptr->val.i, iptr->dst->regoff);
515 void i386_emit_ifcc_iconst(codegendata *cd, s4 if_op, stackptr src, instruction *iptr)
517 if (iptr->dst->flags & INMEMORY) {
520 if (src->flags & INMEMORY) {
521 i386_alu_imm_membase(cd, ALU_CMP, 0, REG_SP, src->regoff * 4);
524 i386_test_reg_reg(cd, src->regoff, src->regoff);
528 CALCOFFSETBYTES(offset, REG_SP, iptr->dst->regoff * 4);
530 i386_jcc(cd, if_op, offset + (iptr[1].opc == ICMD_ELSE_ICONST) ? 5 + offset : 0);
531 i386_mov_imm_membase(cd, iptr->val.i, REG_SP, iptr->dst->regoff * 4);
533 if (iptr[1].opc == ICMD_ELSE_ICONST) {
534 i386_jmp_imm(cd, offset);
535 i386_mov_imm_membase(cd, iptr[1].val.i, REG_SP, iptr->dst->regoff * 4);
539 if (src->flags & INMEMORY) {
540 i386_alu_imm_membase(cd, ALU_CMP, 0, REG_SP, src->regoff * 4);
543 i386_test_reg_reg(cd, src->regoff, src->regoff);
546 i386_jcc(cd, if_op, (iptr[1].opc == ICMD_ELSE_ICONST) ? 10 : 5);
547 i386_mov_imm_reg(cd, iptr->val.i, iptr->dst->regoff);
549 if (iptr[1].opc == ICMD_ELSE_ICONST) {
551 i386_mov_imm_reg(cd, iptr[1].val.i, iptr->dst->regoff);
561 void i386_mov_reg_reg(codegendata *cd, s4 reg, s4 dreg)
563 COUNT(count_mov_reg_reg);
564 *(cd->mcodeptr++) = 0x89;
565 i386_emit_reg((reg),(dreg));
569 void i386_mov_imm_reg(codegendata *cd, s4 imm, s4 reg)
571 *(cd->mcodeptr++) = 0xb8 + ((reg) & 0x07);
572 i386_emit_imm32((imm));
576 void i386_movb_imm_reg(codegendata *cd, s4 imm, s4 reg)
578 *(cd->mcodeptr++) = 0xc6;
579 i386_emit_reg(0,(reg));
580 i386_emit_imm8((imm));
584 void i386_mov_membase_reg(codegendata *cd, s4 basereg, s4 disp, s4 reg)
586 COUNT(count_mov_mem_reg);
587 *(cd->mcodeptr++) = 0x8b;
588 i386_emit_membase((basereg),(disp),(reg));
593 * this one is for INVOKEVIRTUAL/INVOKEINTERFACE to have a
594 * constant membase immediate length of 32bit
596 void i386_mov_membase32_reg(codegendata *cd, s4 basereg, s4 disp, s4 reg)
598 COUNT(count_mov_mem_reg);
599 *(cd->mcodeptr++) = 0x8b;
600 i386_emit_membase32((basereg),(disp),(reg));
604 void i386_mov_reg_membase(codegendata *cd, s4 reg, s4 basereg, s4 disp)
606 COUNT(count_mov_reg_mem);
607 *(cd->mcodeptr++) = 0x89;
608 i386_emit_membase((basereg),(disp),(reg));
612 void i386_mov_reg_membase32(codegendata *cd, s4 reg, s4 basereg, s4 disp)
614 COUNT(count_mov_reg_mem);
615 *(cd->mcodeptr++) = 0x89;
616 i386_emit_membase32((basereg),(disp),(reg));
620 void i386_mov_memindex_reg(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale, s4 reg)
622 COUNT(count_mov_mem_reg);
623 *(cd->mcodeptr++) = 0x8b;
624 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
628 void i386_mov_reg_memindex(codegendata *cd, s4 reg, s4 disp, s4 basereg, s4 indexreg, s4 scale)
630 COUNT(count_mov_reg_mem);
631 *(cd->mcodeptr++) = 0x89;
632 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
636 void i386_movw_reg_memindex(codegendata *cd, s4 reg, s4 disp, s4 basereg, s4 indexreg, s4 scale)
638 COUNT(count_mov_reg_mem);
639 *(cd->mcodeptr++) = 0x66;
640 *(cd->mcodeptr++) = 0x89;
641 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
645 void i386_movb_reg_memindex(codegendata *cd, s4 reg, s4 disp, s4 basereg, s4 indexreg, s4 scale)
647 COUNT(count_mov_reg_mem);
648 *(cd->mcodeptr++) = 0x88;
649 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
653 void i386_mov_reg_mem(codegendata *cd, s4 reg, s4 mem)
655 COUNT(count_mov_reg_mem);
656 *(cd->mcodeptr++) = 0x89;
657 i386_emit_mem((reg),(mem));
661 void i386_mov_mem_reg(codegendata *cd, s4 mem, s4 dreg)
663 COUNT(count_mov_mem_reg);
664 *(cd->mcodeptr++) = 0x8b;
665 i386_emit_mem((dreg),(mem));
669 void i386_mov_imm_mem(codegendata *cd, s4 imm, s4 mem)
671 *(cd->mcodeptr++) = 0xc7;
672 i386_emit_mem(0, mem);
673 i386_emit_imm32(imm);
677 void i386_mov_imm_membase(codegendata *cd, s4 imm, s4 basereg, s4 disp)
679 *(cd->mcodeptr++) = 0xc7;
680 i386_emit_membase((basereg),(disp),0);
681 i386_emit_imm32((imm));
685 void i386_mov_imm_membase32(codegendata *cd, s4 imm, s4 basereg, s4 disp)
687 *(cd->mcodeptr++) = 0xc7;
688 i386_emit_membase32((basereg),(disp),0);
689 i386_emit_imm32((imm));
693 void i386_movb_imm_membase(codegendata *cd, s4 imm, s4 basereg, s4 disp)
695 *(cd->mcodeptr++) = 0xc6;
696 i386_emit_membase((basereg),(disp),0);
697 i386_emit_imm8((imm));
701 void i386_movsbl_memindex_reg(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale, s4 reg)
703 COUNT(count_mov_mem_reg);
704 *(cd->mcodeptr++) = 0x0f;
705 *(cd->mcodeptr++) = 0xbe;
706 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
710 void i386_movswl_memindex_reg(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale, s4 reg)
712 COUNT(count_mov_mem_reg);
713 *(cd->mcodeptr++) = 0x0f;
714 *(cd->mcodeptr++) = 0xbf;
715 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
719 void i386_movzwl_memindex_reg(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale, s4 reg)
721 COUNT(count_mov_mem_reg);
722 *(cd->mcodeptr++) = 0x0f;
723 *(cd->mcodeptr++) = 0xb7;
724 i386_emit_memindex((reg),(disp),(basereg),(indexreg),(scale));
728 void i386_mov_imm_memindex(codegendata *cd, s4 imm, s4 disp, s4 basereg, s4 indexreg, s4 scale)
730 *(cd->mcodeptr++) = 0xc7;
731 i386_emit_memindex(0,(disp),(basereg),(indexreg),(scale));
732 i386_emit_imm32((imm));
736 void i386_movw_imm_memindex(codegendata *cd, s4 imm, s4 disp, s4 basereg, s4 indexreg, s4 scale)
738 *(cd->mcodeptr++) = 0x66;
739 *(cd->mcodeptr++) = 0xc7;
740 i386_emit_memindex(0,(disp),(basereg),(indexreg),(scale));
741 i386_emit_imm16((imm));
745 void i386_movb_imm_memindex(codegendata *cd, s4 imm, s4 disp, s4 basereg, s4 indexreg, s4 scale)
747 *(cd->mcodeptr++) = 0xc6;
748 i386_emit_memindex(0,(disp),(basereg),(indexreg),(scale));
749 i386_emit_imm8((imm));
756 void i386_alu_reg_reg(codegendata *cd, s4 opc, s4 reg, s4 dreg)
758 *(cd->mcodeptr++) = (((u1) (opc)) << 3) + 1;
759 i386_emit_reg((reg),(dreg));
763 void i386_alu_reg_membase(codegendata *cd, s4 opc, s4 reg, s4 basereg, s4 disp)
765 *(cd->mcodeptr++) = (((u1) (opc)) << 3) + 1;
766 i386_emit_membase((basereg),(disp),(reg));
770 void i386_alu_membase_reg(codegendata *cd, s4 opc, s4 basereg, s4 disp, s4 reg)
772 *(cd->mcodeptr++) = (((u1) (opc)) << 3) + 3;
773 i386_emit_membase((basereg),(disp),(reg));
777 void i386_alu_imm_reg(codegendata *cd, s4 opc, s4 imm, s4 dreg)
779 if (i386_is_imm8(imm)) {
780 *(cd->mcodeptr++) = 0x83;
781 i386_emit_reg((opc),(dreg));
782 i386_emit_imm8((imm));
784 *(cd->mcodeptr++) = 0x81;
785 i386_emit_reg((opc),(dreg));
786 i386_emit_imm32((imm));
791 void i386_alu_imm32_reg(codegendata *cd, s4 opc, s4 imm, s4 dreg)
793 *(cd->mcodeptr++) = 0x81;
794 i386_emit_reg((opc),(dreg));
795 i386_emit_imm32((imm));
799 void i386_alu_imm_membase(codegendata *cd, s4 opc, s4 imm, s4 basereg, s4 disp)
801 if (i386_is_imm8(imm)) {
802 *(cd->mcodeptr++) = 0x83;
803 i386_emit_membase((basereg),(disp),(opc));
804 i386_emit_imm8((imm));
806 *(cd->mcodeptr++) = 0x81;
807 i386_emit_membase((basereg),(disp),(opc));
808 i386_emit_imm32((imm));
813 void i386_test_reg_reg(codegendata *cd, s4 reg, s4 dreg)
815 *(cd->mcodeptr++) = 0x85;
816 i386_emit_reg((reg),(dreg));
820 void i386_test_imm_reg(codegendata *cd, s4 imm, s4 reg)
822 *(cd->mcodeptr++) = 0xf7;
823 i386_emit_reg(0,(reg));
824 i386_emit_imm32((imm));
830 * inc, dec operations
832 void i386_dec_mem(codegendata *cd, s4 mem)
834 *(cd->mcodeptr++) = 0xff;
835 i386_emit_mem(1,(mem));
839 void i386_cltd(codegendata *cd)
841 *(cd->mcodeptr++) = 0x99;
845 void i386_imul_reg_reg(codegendata *cd, s4 reg, s4 dreg)
847 *(cd->mcodeptr++) = 0x0f;
848 *(cd->mcodeptr++) = 0xaf;
849 i386_emit_reg((dreg),(reg));
853 void i386_imul_membase_reg(codegendata *cd, s4 basereg, s4 disp, s4 dreg)
855 *(cd->mcodeptr++) = 0x0f;
856 *(cd->mcodeptr++) = 0xaf;
857 i386_emit_membase((basereg),(disp),(dreg));
861 void i386_imul_imm_reg(codegendata *cd, s4 imm, s4 dreg)
863 if (i386_is_imm8((imm))) {
864 *(cd->mcodeptr++) = 0x6b;
865 i386_emit_reg(0,(dreg));
866 i386_emit_imm8((imm));
868 *(cd->mcodeptr++) = 0x69;
869 i386_emit_reg(0,(dreg));
870 i386_emit_imm32((imm));
875 void i386_imul_imm_reg_reg(codegendata *cd, s4 imm, s4 reg, s4 dreg)
877 if (i386_is_imm8((imm))) {
878 *(cd->mcodeptr++) = 0x6b;
879 i386_emit_reg((dreg),(reg));
880 i386_emit_imm8((imm));
882 *(cd->mcodeptr++) = 0x69;
883 i386_emit_reg((dreg),(reg));
884 i386_emit_imm32((imm));
889 void i386_imul_imm_membase_reg(codegendata *cd, s4 imm, s4 basereg, s4 disp, s4 dreg)
891 if (i386_is_imm8((imm))) {
892 *(cd->mcodeptr++) = 0x6b;
893 i386_emit_membase((basereg),(disp),(dreg));
894 i386_emit_imm8((imm));
896 *(cd->mcodeptr++) = 0x69;
897 i386_emit_membase((basereg),(disp),(dreg));
898 i386_emit_imm32((imm));
903 void i386_mul_membase(codegendata *cd, s4 basereg, s4 disp)
905 *(cd->mcodeptr++) = 0xf7;
906 i386_emit_membase((basereg),(disp),4);
910 void i386_idiv_reg(codegendata *cd, s4 reg)
912 *(cd->mcodeptr++) = 0xf7;
913 i386_emit_reg(7,(reg));
917 void i386_ret(codegendata *cd)
919 *(cd->mcodeptr++) = 0xc3;
927 void i386_shift_reg(codegendata *cd, s4 opc, s4 reg)
929 *(cd->mcodeptr++) = 0xd3;
930 i386_emit_reg((opc),(reg));
934 void i386_shift_membase(codegendata *cd, s4 opc, s4 basereg, s4 disp)
936 *(cd->mcodeptr++) = 0xd3;
937 i386_emit_membase((basereg),(disp),(opc));
941 void i386_shift_imm_reg(codegendata *cd, s4 opc, s4 imm, s4 dreg)
944 *(cd->mcodeptr++) = 0xd1;
945 i386_emit_reg((opc),(dreg));
947 *(cd->mcodeptr++) = 0xc1;
948 i386_emit_reg((opc),(dreg));
949 i386_emit_imm8((imm));
954 void i386_shift_imm_membase(codegendata *cd, s4 opc, s4 imm, s4 basereg, s4 disp)
957 *(cd->mcodeptr++) = 0xd1;
958 i386_emit_membase((basereg),(disp),(opc));
960 *(cd->mcodeptr++) = 0xc1;
961 i386_emit_membase((basereg),(disp),(opc));
962 i386_emit_imm8((imm));
967 void i386_shld_reg_reg(codegendata *cd, s4 reg, s4 dreg)
969 *(cd->mcodeptr++) = 0x0f;
970 *(cd->mcodeptr++) = 0xa5;
971 i386_emit_reg((reg),(dreg));
975 void i386_shld_imm_reg_reg(codegendata *cd, s4 imm, s4 reg, s4 dreg)
977 *(cd->mcodeptr++) = 0x0f;
978 *(cd->mcodeptr++) = 0xa4;
979 i386_emit_reg((reg),(dreg));
980 i386_emit_imm8((imm));
984 void i386_shld_reg_membase(codegendata *cd, s4 reg, s4 basereg, s4 disp)
986 *(cd->mcodeptr++) = 0x0f;
987 *(cd->mcodeptr++) = 0xa5;
988 i386_emit_membase((basereg),(disp),(reg));
992 void i386_shrd_reg_reg(codegendata *cd, s4 reg, s4 dreg)
994 *(cd->mcodeptr++) = 0x0f;
995 *(cd->mcodeptr++) = 0xad;
996 i386_emit_reg((reg),(dreg));
1000 void i386_shrd_imm_reg_reg(codegendata *cd, s4 imm, s4 reg, s4 dreg)
1002 *(cd->mcodeptr++) = 0x0f;
1003 *(cd->mcodeptr++) = 0xac;
1004 i386_emit_reg((reg),(dreg));
1005 i386_emit_imm8((imm));
1009 void i386_shrd_reg_membase(codegendata *cd, s4 reg, s4 basereg, s4 disp)
1011 *(cd->mcodeptr++) = 0x0f;
1012 *(cd->mcodeptr++) = 0xad;
1013 i386_emit_membase((basereg),(disp),(reg));
1021 void i386_jmp_imm(codegendata *cd, s4 imm)
1023 *(cd->mcodeptr++) = 0xe9;
1024 i386_emit_imm32((imm));
1028 void i386_jmp_reg(codegendata *cd, s4 reg)
1030 *(cd->mcodeptr++) = 0xff;
1031 i386_emit_reg(4,(reg));
1035 void i386_jcc(codegendata *cd, s4 opc, s4 imm)
1037 *(cd->mcodeptr++) = 0x0f;
1038 *(cd->mcodeptr++) = 0x80 + (u1) (opc);
1039 i386_emit_imm32((imm));
1045 * conditional set operations
1047 void i386_setcc_reg(codegendata *cd, s4 opc, s4 reg)
1049 *(cd->mcodeptr++) = 0x0f;
1050 *(cd->mcodeptr++) = 0x90 + (u1) (opc);
1051 i386_emit_reg(0,(reg));
1055 void i386_setcc_membase(codegendata *cd, s4 opc, s4 basereg, s4 disp)
1057 *(cd->mcodeptr++) = 0x0f;
1058 *(cd->mcodeptr++) = 0x90 + (u1) (opc);
1059 i386_emit_membase((basereg),(disp),0);
1063 void i386_xadd_reg_mem(codegendata *cd, s4 reg, s4 mem)
1065 *(cd->mcodeptr++) = 0x0f;
1066 *(cd->mcodeptr++) = 0xc1;
1067 i386_emit_mem((reg),(mem));
1071 void i386_neg_reg(codegendata *cd, s4 reg)
1073 *(cd->mcodeptr++) = 0xf7;
1074 i386_emit_reg(3,(reg));
1078 void i386_neg_membase(codegendata *cd, s4 basereg, s4 disp)
1080 *(cd->mcodeptr++) = 0xf7;
1081 i386_emit_membase((basereg),(disp),3);
1086 void i386_push_imm(codegendata *cd, s4 imm)
1088 *(cd->mcodeptr++) = 0x68;
1089 i386_emit_imm32((imm));
1093 void i386_pop_reg(codegendata *cd, s4 reg)
1095 *(cd->mcodeptr++) = 0x58 + (0x07 & (u1) (reg));
1099 void i386_push_reg(codegendata *cd, s4 reg)
1101 *(cd->mcodeptr++) = 0x50 + (0x07 & (u1) (reg));
1105 void i386_nop(codegendata *cd)
1107 *(cd->mcodeptr++) = 0x90;
1111 void i386_lock(codegendata *cd)
1113 *(cd->mcodeptr++) = 0xf0;
1120 void i386_call_reg(codegendata *cd, s4 reg)
1122 *(cd->mcodeptr++) = 0xff;
1123 i386_emit_reg(2,(reg));
1127 void i386_call_imm(codegendata *cd, s4 imm)
1129 *(cd->mcodeptr++) = 0xe8;
1130 i386_emit_imm32((imm));
1136 * floating point instructions
1138 void i386_fld1(codegendata *cd)
1140 *(cd->mcodeptr++) = 0xd9;
1141 *(cd->mcodeptr++) = 0xe8;
1145 void i386_fldz(codegendata *cd)
1147 *(cd->mcodeptr++) = 0xd9;
1148 *(cd->mcodeptr++) = 0xee;
1152 void i386_fld_reg(codegendata *cd, s4 reg)
1154 *(cd->mcodeptr++) = 0xd9;
1155 *(cd->mcodeptr++) = 0xc0 + (0x07 & (u1) (reg));
1159 void i386_flds_membase(codegendata *cd, s4 basereg, s4 disp)
1161 *(cd->mcodeptr++) = 0xd9;
1162 i386_emit_membase((basereg),(disp),0);
1166 void i386_flds_membase32(codegendata *cd, s4 basereg, s4 disp)
1168 *(cd->mcodeptr++) = 0xd9;
1169 i386_emit_membase32((basereg),(disp),0);
1173 void i386_fldl_membase(codegendata *cd, s4 basereg, s4 disp)
1175 *(cd->mcodeptr++) = 0xdd;
1176 i386_emit_membase((basereg),(disp),0);
1180 void i386_fldl_membase32(codegendata *cd, s4 basereg, s4 disp)
1182 *(cd->mcodeptr++) = 0xdd;
1183 i386_emit_membase32((basereg),(disp),0);
1187 void i386_fldt_membase(codegendata *cd, s4 basereg, s4 disp)
1189 *(cd->mcodeptr++) = 0xdb;
1190 i386_emit_membase((basereg),(disp),5);
1194 void i386_flds_memindex(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale)
1196 *(cd->mcodeptr++) = 0xd9;
1197 i386_emit_memindex(0,(disp),(basereg),(indexreg),(scale));
1201 void i386_fldl_memindex(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale)
1203 *(cd->mcodeptr++) = 0xdd;
1204 i386_emit_memindex(0,(disp),(basereg),(indexreg),(scale));
1208 void i386_flds_mem(codegendata *cd, s4 mem)
1210 *(cd->mcodeptr++) = 0xd9;
1211 i386_emit_mem(0,(mem));
1215 void i386_fldl_mem(codegendata *cd, s4 mem)
1217 *(cd->mcodeptr++) = 0xdd;
1218 i386_emit_mem(0,(mem));
1222 void i386_fildl_membase(codegendata *cd, s4 basereg, s4 disp)
1224 *(cd->mcodeptr++) = 0xdb;
1225 i386_emit_membase((basereg),(disp),0);
1229 void i386_fildll_membase(codegendata *cd, s4 basereg, s4 disp)
1231 *(cd->mcodeptr++) = 0xdf;
1232 i386_emit_membase((basereg),(disp),5);
1236 void i386_fst_reg(codegendata *cd, s4 reg)
1238 *(cd->mcodeptr++) = 0xdd;
1239 *(cd->mcodeptr++) = 0xd0 + (0x07 & (u1) (reg));
1243 void i386_fsts_membase(codegendata *cd, s4 basereg, s4 disp)
1245 *(cd->mcodeptr++) = 0xd9;
1246 i386_emit_membase((basereg),(disp),2);
1250 void i386_fstl_membase(codegendata *cd, s4 basereg, s4 disp)
1252 *(cd->mcodeptr++) = 0xdd;
1253 i386_emit_membase((basereg),(disp),2);
1257 void i386_fsts_memindex(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale)
1259 *(cd->mcodeptr++) = 0xd9;
1260 i386_emit_memindex(2,(disp),(basereg),(indexreg),(scale));
1264 void i386_fstl_memindex(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale)
1266 *(cd->mcodeptr++) = 0xdd;
1267 i386_emit_memindex(2,(disp),(basereg),(indexreg),(scale));
1271 void i386_fstp_reg(codegendata *cd, s4 reg)
1273 *(cd->mcodeptr++) = 0xdd;
1274 *(cd->mcodeptr++) = 0xd8 + (0x07 & (u1) (reg));
1278 void i386_fstps_membase(codegendata *cd, s4 basereg, s4 disp)
1280 *(cd->mcodeptr++) = 0xd9;
1281 i386_emit_membase((basereg),(disp),3);
1285 void i386_fstps_membase32(codegendata *cd, s4 basereg, s4 disp)
1287 *(cd->mcodeptr++) = 0xd9;
1288 i386_emit_membase32((basereg),(disp),3);
1292 void i386_fstpl_membase(codegendata *cd, s4 basereg, s4 disp)
1294 *(cd->mcodeptr++) = 0xdd;
1295 i386_emit_membase((basereg),(disp),3);
1299 void i386_fstpl_membase32(codegendata *cd, s4 basereg, s4 disp)
1301 *(cd->mcodeptr++) = 0xdd;
1302 i386_emit_membase32((basereg),(disp),3);
1306 void i386_fstpt_membase(codegendata *cd, s4 basereg, s4 disp)
1308 *(cd->mcodeptr++) = 0xdb;
1309 i386_emit_membase((basereg),(disp),7);
1313 void i386_fstps_memindex(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale)
1315 *(cd->mcodeptr++) = 0xd9;
1316 i386_emit_memindex(3,(disp),(basereg),(indexreg),(scale));
1320 void i386_fstpl_memindex(codegendata *cd, s4 disp, s4 basereg, s4 indexreg, s4 scale)
1322 *(cd->mcodeptr++) = 0xdd;
1323 i386_emit_memindex(3,(disp),(basereg),(indexreg),(scale));
1327 void i386_fstps_mem(codegendata *cd, s4 mem)
1329 *(cd->mcodeptr++) = 0xd9;
1330 i386_emit_mem(3,(mem));
1334 void i386_fstpl_mem(codegendata *cd, s4 mem)
1336 *(cd->mcodeptr++) = 0xdd;
1337 i386_emit_mem(3,(mem));
1341 void i386_fistl_membase(codegendata *cd, s4 basereg, s4 disp)
1343 *(cd->mcodeptr++) = 0xdb;
1344 i386_emit_membase((basereg),(disp),2);
1348 void i386_fistpl_membase(codegendata *cd, s4 basereg, s4 disp)
1350 *(cd->mcodeptr++) = 0xdb;
1351 i386_emit_membase((basereg),(disp),3);
1355 void i386_fistpll_membase(codegendata *cd, s4 basereg, s4 disp)
1357 *(cd->mcodeptr++) = 0xdf;
1358 i386_emit_membase((basereg),(disp),7);
1362 void i386_fchs(codegendata *cd)
1364 *(cd->mcodeptr++) = 0xd9;
1365 *(cd->mcodeptr++) = 0xe0;
1369 void i386_faddp(codegendata *cd)
1371 *(cd->mcodeptr++) = 0xde;
1372 *(cd->mcodeptr++) = 0xc1;
1376 void i386_fadd_reg_st(codegendata *cd, s4 reg)
1378 *(cd->mcodeptr++) = 0xd8;
1379 *(cd->mcodeptr++) = 0xc0 + (0x0f & (u1) (reg));
1383 void i386_fadd_st_reg(codegendata *cd, s4 reg)
1385 *(cd->mcodeptr++) = 0xdc;
1386 *(cd->mcodeptr++) = 0xc0 + (0x0f & (u1) (reg));
1390 void i386_faddp_st_reg(codegendata *cd, s4 reg)
1392 *(cd->mcodeptr++) = 0xde;
1393 *(cd->mcodeptr++) = 0xc0 + (0x0f & (u1) (reg));
1397 void i386_fadds_membase(codegendata *cd, s4 basereg, s4 disp)
1399 *(cd->mcodeptr++) = 0xd8;
1400 i386_emit_membase((basereg),(disp),0);
1404 void i386_faddl_membase(codegendata *cd, s4 basereg, s4 disp)
1406 *(cd->mcodeptr++) = 0xdc;
1407 i386_emit_membase((basereg),(disp),0);
1411 void i386_fsub_reg_st(codegendata *cd, s4 reg)
1413 *(cd->mcodeptr++) = 0xd8;
1414 *(cd->mcodeptr++) = 0xe0 + (0x07 & (u1) (reg));
1418 void i386_fsub_st_reg(codegendata *cd, s4 reg)
1420 *(cd->mcodeptr++) = 0xdc;
1421 *(cd->mcodeptr++) = 0xe8 + (0x07 & (u1) (reg));
1425 void i386_fsubp_st_reg(codegendata *cd, s4 reg)
1427 *(cd->mcodeptr++) = 0xde;
1428 *(cd->mcodeptr++) = 0xe8 + (0x07 & (u1) (reg));
1432 void i386_fsubp(codegendata *cd)
1434 *(cd->mcodeptr++) = 0xde;
1435 *(cd->mcodeptr++) = 0xe9;
1439 void i386_fsubs_membase(codegendata *cd, s4 basereg, s4 disp)
1441 *(cd->mcodeptr++) = 0xd8;
1442 i386_emit_membase((basereg),(disp),4);
1446 void i386_fsubl_membase(codegendata *cd, s4 basereg, s4 disp)
1448 *(cd->mcodeptr++) = 0xdc;
1449 i386_emit_membase((basereg),(disp),4);
1453 void i386_fmul_reg_st(codegendata *cd, s4 reg)
1455 *(cd->mcodeptr++) = 0xd8;
1456 *(cd->mcodeptr++) = 0xc8 + (0x07 & (u1) (reg));
1460 void i386_fmul_st_reg(codegendata *cd, s4 reg)
1462 *(cd->mcodeptr++) = 0xdc;
1463 *(cd->mcodeptr++) = 0xc8 + (0x07 & (u1) (reg));
1467 void i386_fmulp(codegendata *cd)
1469 *(cd->mcodeptr++) = 0xde;
1470 *(cd->mcodeptr++) = 0xc9;
1474 void i386_fmulp_st_reg(codegendata *cd, s4 reg)
1476 *(cd->mcodeptr++) = 0xde;
1477 *(cd->mcodeptr++) = 0xc8 + (0x07 & (u1) (reg));
1481 void i386_fmuls_membase(codegendata *cd, s4 basereg, s4 disp)
1483 *(cd->mcodeptr++) = 0xd8;
1484 i386_emit_membase((basereg),(disp),1);
1488 void i386_fmull_membase(codegendata *cd, s4 basereg, s4 disp)
1490 *(cd->mcodeptr++) = 0xdc;
1491 i386_emit_membase((basereg),(disp),1);
1495 void i386_fdiv_reg_st(codegendata *cd, s4 reg)
1497 *(cd->mcodeptr++) = 0xd8;
1498 *(cd->mcodeptr++) = 0xf0 + (0x07 & (u1) (reg));
1502 void i386_fdiv_st_reg(codegendata *cd, s4 reg)
1504 *(cd->mcodeptr++) = 0xdc;
1505 *(cd->mcodeptr++) = 0xf8 + (0x07 & (u1) (reg));
1509 void i386_fdivp(codegendata *cd)
1511 *(cd->mcodeptr++) = 0xde;
1512 *(cd->mcodeptr++) = 0xf9;
1516 void i386_fdivp_st_reg(codegendata *cd, s4 reg)
1518 *(cd->mcodeptr++) = 0xde;
1519 *(cd->mcodeptr++) = 0xf8 + (0x07 & (u1) (reg));
1523 void i386_fxch(codegendata *cd)
1525 *(cd->mcodeptr++) = 0xd9;
1526 *(cd->mcodeptr++) = 0xc9;
1530 void i386_fxch_reg(codegendata *cd, s4 reg)
1532 *(cd->mcodeptr++) = 0xd9;
1533 *(cd->mcodeptr++) = 0xc8 + (0x07 & (reg));
1537 void i386_fprem(codegendata *cd)
1539 *(cd->mcodeptr++) = 0xd9;
1540 *(cd->mcodeptr++) = 0xf8;
1544 void i386_fprem1(codegendata *cd)
1546 *(cd->mcodeptr++) = 0xd9;
1547 *(cd->mcodeptr++) = 0xf5;
1551 void i386_fucom(codegendata *cd)
1553 *(cd->mcodeptr++) = 0xdd;
1554 *(cd->mcodeptr++) = 0xe1;
1558 void i386_fucom_reg(codegendata *cd, s4 reg)
1560 *(cd->mcodeptr++) = 0xdd;
1561 *(cd->mcodeptr++) = 0xe0 + (0x07 & (u1) (reg));
1565 void i386_fucomp_reg(codegendata *cd, s4 reg)
1567 *(cd->mcodeptr++) = 0xdd;
1568 *(cd->mcodeptr++) = 0xe8 + (0x07 & (u1) (reg));
1572 void i386_fucompp(codegendata *cd)
1574 *(cd->mcodeptr++) = 0xda;
1575 *(cd->mcodeptr++) = 0xe9;
1579 void i386_fnstsw(codegendata *cd)
1581 *(cd->mcodeptr++) = 0xdf;
1582 *(cd->mcodeptr++) = 0xe0;
1586 void i386_sahf(codegendata *cd)
1588 *(cd->mcodeptr++) = 0x9e;
1592 void i386_finit(codegendata *cd)
1594 *(cd->mcodeptr++) = 0x9b;
1595 *(cd->mcodeptr++) = 0xdb;
1596 *(cd->mcodeptr++) = 0xe3;
1600 void i386_fldcw_mem(codegendata *cd, s4 mem)
1602 *(cd->mcodeptr++) = 0xd9;
1603 i386_emit_mem(5,(mem));
1607 void i386_fldcw_membase(codegendata *cd, s4 basereg, s4 disp)
1609 *(cd->mcodeptr++) = 0xd9;
1610 i386_emit_membase((basereg),(disp),5);
1614 void i386_wait(codegendata *cd)
1616 *(cd->mcodeptr++) = 0x9b;
1620 void i386_ffree_reg(codegendata *cd, s4 reg)
1622 *(cd->mcodeptr++) = 0xdd;
1623 *(cd->mcodeptr++) = 0xc0 + (0x07 & (u1) (reg));
1627 void i386_fdecstp(codegendata *cd)
1629 *(cd->mcodeptr++) = 0xd9;
1630 *(cd->mcodeptr++) = 0xf6;
1634 void i386_fincstp(codegendata *cd)
1636 *(cd->mcodeptr++) = 0xd9;
1637 *(cd->mcodeptr++) = 0xf7;
1642 * These are local overrides for various environment variables in Emacs.
1643 * Please do not remove this and leave it at the end of the file, where
1644 * Emacs will automagically detect them.
1645 * ---------------------------------------------------------------------
1648 * indent-tabs-mode: t