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Disable kqemu by default at run time
[qemu.git] / tcg / x86_64 / tcg-target.c
blob5378e8510b48c951acd643234dda8ebd564d37de
1 /*
2 * Tiny Code Generator for QEMU
3 *
4 * Copyright (c) 2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #ifndef NDEBUG
26 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
27 "%rax",
28 "%rcx",
29 "%rdx",
30 "%rbx",
31 "%rsp",
32 "%rbp",
33 "%rsi",
34 "%rdi",
35 "%r8",
36 "%r9",
37 "%r10",
38 "%r11",
39 "%r12",
40 "%r13",
41 "%r14",
42 "%r15",
43 };
44 #endif
45
46 static const int tcg_target_reg_alloc_order[] = {
47 TCG_REG_RBP,
48 TCG_REG_RBX,
49 TCG_REG_R12,
50 TCG_REG_R13,
51 TCG_REG_R14,
52 TCG_REG_R15,
53 TCG_REG_R10,
54 TCG_REG_R11,
55 TCG_REG_R9,
56 TCG_REG_R8,
57 TCG_REG_RCX,
58 TCG_REG_RDX,
59 TCG_REG_RSI,
60 TCG_REG_RDI,
61 TCG_REG_RAX,
62 };
63
64 static const int tcg_target_call_iarg_regs[6] = {
65 TCG_REG_RDI,
66 TCG_REG_RSI,
67 TCG_REG_RDX,
68 TCG_REG_RCX,
69 TCG_REG_R8,
70 TCG_REG_R9,
71 };
72
73 static const int tcg_target_call_oarg_regs[2] = {
74 TCG_REG_RAX,
75 TCG_REG_RDX
76 };
77
78 static uint8_t *tb_ret_addr;
79
80 static void patch_reloc(uint8_t *code_ptr, int type,
81 tcg_target_long value, tcg_target_long addend)
82 {
83 value += addend;
84 switch(type) {
85 case R_X86_64_32:
86 if (value != (uint32_t)value)
87 tcg_abort();
88 *(uint32_t *)code_ptr = value;
89 break;
90 case R_X86_64_32S:
91 if (value != (int32_t)value)
92 tcg_abort();
93 *(uint32_t *)code_ptr = value;
94 break;
95 case R_386_PC32:
96 value -= (long)code_ptr;
97 if (value != (int32_t)value)
98 tcg_abort();
99 *(uint32_t *)code_ptr = value;
100 break;
101 default:
102 tcg_abort();
103 }
104 }
105
106 /* maximum number of register used for input function arguments */
107 static inline int tcg_target_get_call_iarg_regs_count(int flags)
108 {
109 return 6;
110 }
111
112 /* parse target specific constraints */
113 static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
114 {
115 const char *ct_str;
116
117 ct_str = *pct_str;
118 switch(ct_str[0]) {
119 case 'a':
120 ct->ct |= TCG_CT_REG;
121 tcg_regset_set_reg(ct->u.regs, TCG_REG_RAX);
122 break;
123 case 'b':
124 ct->ct |= TCG_CT_REG;
125 tcg_regset_set_reg(ct->u.regs, TCG_REG_RBX);
126 break;
127 case 'c':
128 ct->ct |= TCG_CT_REG;
129 tcg_regset_set_reg(ct->u.regs, TCG_REG_RCX);
130 break;
131 case 'd':
132 ct->ct |= TCG_CT_REG;
133 tcg_regset_set_reg(ct->u.regs, TCG_REG_RDX);
134 break;
135 case 'S':
136 ct->ct |= TCG_CT_REG;
137 tcg_regset_set_reg(ct->u.regs, TCG_REG_RSI);
138 break;
139 case 'D':
140 ct->ct |= TCG_CT_REG;
141 tcg_regset_set_reg(ct->u.regs, TCG_REG_RDI);
142 break;
143 case 'q':
144 ct->ct |= TCG_CT_REG;
145 tcg_regset_set32(ct->u.regs, 0, 0xf);
146 break;
147 case 'r':
148 ct->ct |= TCG_CT_REG;
149 tcg_regset_set32(ct->u.regs, 0, 0xffff);
150 break;
151 case 'L': /* qemu_ld/st constraint */
152 ct->ct |= TCG_CT_REG;
153 tcg_regset_set32(ct->u.regs, 0, 0xffff);
154 tcg_regset_reset_reg(ct->u.regs, TCG_REG_RSI);
155 tcg_regset_reset_reg(ct->u.regs, TCG_REG_RDI);
156 break;
157 case 'e':
158 ct->ct |= TCG_CT_CONST_S32;
159 break;
160 case 'Z':
161 ct->ct |= TCG_CT_CONST_U32;
162 break;
163 default:
164 return -1;
165 }
166 ct_str++;
167 *pct_str = ct_str;
168 return 0;
169 }
170
171 /* test if a constant matches the constraint */
172 static inline int tcg_target_const_match(tcg_target_long val,
173 const TCGArgConstraint *arg_ct)
174 {
175 int ct;
176 ct = arg_ct->ct;
177 if (ct & TCG_CT_CONST)
178 return 1;
179 else if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val)
180 return 1;
181 else if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val)
182 return 1;
183 else
184 return 0;
185 }
186
187 #define ARITH_ADD 0
188 #define ARITH_OR 1
189 #define ARITH_ADC 2
190 #define ARITH_SBB 3
191 #define ARITH_AND 4
192 #define ARITH_SUB 5
193 #define ARITH_XOR 6
194 #define ARITH_CMP 7
195
196 #define SHIFT_ROL 0
197 #define SHIFT_ROR 1
198 #define SHIFT_SHL 4
199 #define SHIFT_SHR 5
200 #define SHIFT_SAR 7
201
202 #define JCC_JMP (-1)
203 #define JCC_JO 0x0
204 #define JCC_JNO 0x1
205 #define JCC_JB 0x2
206 #define JCC_JAE 0x3
207 #define JCC_JE 0x4
208 #define JCC_JNE 0x5
209 #define JCC_JBE 0x6
210 #define JCC_JA 0x7
211 #define JCC_JS 0x8
212 #define JCC_JNS 0x9
213 #define JCC_JP 0xa
214 #define JCC_JNP 0xb
215 #define JCC_JL 0xc
216 #define JCC_JGE 0xd
217 #define JCC_JLE 0xe
218 #define JCC_JG 0xf
219
220 #define P_EXT 0x100 /* 0x0f opcode prefix */
221 #define P_REXW 0x200 /* set rex.w = 1 */
222 #define P_REXB 0x400 /* force rex use for byte registers */
223
224 static const uint8_t tcg_cond_to_jcc[10] = {
225 [TCG_COND_EQ] = JCC_JE,
226 [TCG_COND_NE] = JCC_JNE,
227 [TCG_COND_LT] = JCC_JL,
228 [TCG_COND_GE] = JCC_JGE,
229 [TCG_COND_LE] = JCC_JLE,
230 [TCG_COND_GT] = JCC_JG,
231 [TCG_COND_LTU] = JCC_JB,
232 [TCG_COND_GEU] = JCC_JAE,
233 [TCG_COND_LEU] = JCC_JBE,
234 [TCG_COND_GTU] = JCC_JA,
235 };
236
237 static inline void tcg_out_opc(TCGContext *s, int opc, int r, int rm, int x)
238 {
239 int rex;
240 rex = ((opc >> 6) & 0x8) | ((r >> 1) & 0x4) |
241 ((x >> 2) & 2) | ((rm >> 3) & 1);
242 if (rex || (opc & P_REXB)) {
243 tcg_out8(s, rex | 0x40);
244 }
245 if (opc & P_EXT)
246 tcg_out8(s, 0x0f);
247 tcg_out8(s, opc & 0xff);
248 }
249
250 static inline void tcg_out_modrm(TCGContext *s, int opc, int r, int rm)
251 {
252 tcg_out_opc(s, opc, r, rm, 0);
253 tcg_out8(s, 0xc0 | ((r & 7) << 3) | (rm & 7));
254 }
255
256 /* rm < 0 means no register index plus (-rm - 1 immediate bytes) */
257 static inline void tcg_out_modrm_offset(TCGContext *s, int opc, int r, int rm,
258 tcg_target_long offset)
259 {
260 if (rm < 0) {
261 tcg_target_long val;
262 tcg_out_opc(s, opc, r, 0, 0);
263 val = offset - ((tcg_target_long)s->code_ptr + 5 + (-rm - 1));
264 if (val == (int32_t)val) {
265 /* eip relative */
266 tcg_out8(s, 0x05 | ((r & 7) << 3));
267 tcg_out32(s, val);
268 } else if (offset == (int32_t)offset) {
269 tcg_out8(s, 0x04 | ((r & 7) << 3));
270 tcg_out8(s, 0x25); /* sib */
271 tcg_out32(s, offset);
272 } else {
273 tcg_abort();
274 }
275 } else if (offset == 0 && (rm & 7) != TCG_REG_RBP) {
276 tcg_out_opc(s, opc, r, rm, 0);
277 if ((rm & 7) == TCG_REG_RSP) {
278 tcg_out8(s, 0x04 | ((r & 7) << 3));
279 tcg_out8(s, 0x24);
280 } else {
281 tcg_out8(s, 0x00 | ((r & 7) << 3) | (rm & 7));
282 }
283 } else if ((int8_t)offset == offset) {
284 tcg_out_opc(s, opc, r, rm, 0);
285 if ((rm & 7) == TCG_REG_RSP) {
286 tcg_out8(s, 0x44 | ((r & 7) << 3));
287 tcg_out8(s, 0x24);
288 } else {
289 tcg_out8(s, 0x40 | ((r & 7) << 3) | (rm & 7));
290 }
291 tcg_out8(s, offset);
292 } else {
293 tcg_out_opc(s, opc, r, rm, 0);
294 if ((rm & 7) == TCG_REG_RSP) {
295 tcg_out8(s, 0x84 | ((r & 7) << 3));
296 tcg_out8(s, 0x24);
297 } else {
298 tcg_out8(s, 0x80 | ((r & 7) << 3) | (rm & 7));
299 }
300 tcg_out32(s, offset);
301 }
302 }
303
304 #if defined(CONFIG_SOFTMMU)
305 /* XXX: incomplete. index must be different from ESP */
306 static void tcg_out_modrm_offset2(TCGContext *s, int opc, int r, int rm,
307 int index, int shift,
308 tcg_target_long offset)
309 {
310 int mod;
311 if (rm == -1)
312 tcg_abort();
313 if (offset == 0 && (rm & 7) != TCG_REG_RBP) {
314 mod = 0;
315 } else if (offset == (int8_t)offset) {
316 mod = 0x40;
317 } else if (offset == (int32_t)offset) {
318 mod = 0x80;
319 } else {
320 tcg_abort();
321 }
322 if (index == -1) {
323 tcg_out_opc(s, opc, r, rm, 0);
324 if ((rm & 7) == TCG_REG_RSP) {
325 tcg_out8(s, mod | ((r & 7) << 3) | 0x04);
326 tcg_out8(s, 0x04 | (rm & 7));
327 } else {
328 tcg_out8(s, mod | ((r & 7) << 3) | (rm & 7));
329 }
330 } else {
331 tcg_out_opc(s, opc, r, rm, index);
332 tcg_out8(s, mod | ((r & 7) << 3) | 0x04);
333 tcg_out8(s, (shift << 6) | ((index & 7) << 3) | (rm & 7));
334 }
335 if (mod == 0x40) {
336 tcg_out8(s, offset);
337 } else if (mod == 0x80) {
338 tcg_out32(s, offset);
339 }
340 }
341 #endif
342
343 static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
344 {
345 tcg_out_modrm(s, 0x8b | P_REXW, ret, arg);
346 }
347
348 static inline void tcg_out_movi(TCGContext *s, TCGType type,
349 int ret, tcg_target_long arg)
350 {
351 if (arg == 0) {
352 tcg_out_modrm(s, 0x01 | (ARITH_XOR << 3), ret, ret); /* xor r0,r0 */
353 } else if (arg == (uint32_t)arg || type == TCG_TYPE_I32) {
354 tcg_out_opc(s, 0xb8 + (ret & 7), 0, ret, 0);
355 tcg_out32(s, arg);
356 } else if (arg == (int32_t)arg) {
357 tcg_out_modrm(s, 0xc7 | P_REXW, 0, ret);
358 tcg_out32(s, arg);
359 } else {
360 tcg_out_opc(s, (0xb8 + (ret & 7)) | P_REXW, 0, ret, 0);
361 tcg_out32(s, arg);
362 tcg_out32(s, arg >> 32);
363 }
364 }
365
366 static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret,
367 int arg1, tcg_target_long arg2)
368 {
369 if (type == TCG_TYPE_I32)
370 tcg_out_modrm_offset(s, 0x8b, ret, arg1, arg2); /* movl */
371 else
372 tcg_out_modrm_offset(s, 0x8b | P_REXW, ret, arg1, arg2); /* movq */
373 }
374
375 static inline void tcg_out_st(TCGContext *s, TCGType type, int arg,
376 int arg1, tcg_target_long arg2)
377 {
378 if (type == TCG_TYPE_I32)
379 tcg_out_modrm_offset(s, 0x89, arg, arg1, arg2); /* movl */
380 else
381 tcg_out_modrm_offset(s, 0x89 | P_REXW, arg, arg1, arg2); /* movq */
382 }
383
384 static inline void tgen_arithi32(TCGContext *s, int c, int r0, int32_t val)
385 {
386 if (val == (int8_t)val) {
387 tcg_out_modrm(s, 0x83, c, r0);
388 tcg_out8(s, val);
389 } else if (c == ARITH_AND && val == 0xffu) {
390 /* movzbl */
391 tcg_out_modrm(s, 0xb6 | P_EXT | P_REXB, r0, r0);
392 } else if (c == ARITH_AND && val == 0xffffu) {
393 /* movzwl */
394 tcg_out_modrm(s, 0xb7 | P_EXT, r0, r0);
395 } else {
396 tcg_out_modrm(s, 0x81, c, r0);
397 tcg_out32(s, val);
398 }
399 }
400
401 static inline void tgen_arithi64(TCGContext *s, int c, int r0, int64_t val)
402 {
403 if (val == (int8_t)val) {
404 tcg_out_modrm(s, 0x83 | P_REXW, c, r0);
405 tcg_out8(s, val);
406 } else if (c == ARITH_AND && val == 0xffu) {
407 /* movzbl */
408 tcg_out_modrm(s, 0xb6 | P_EXT | P_REXW, r0, r0);
409 } else if (c == ARITH_AND && val == 0xffffu) {
410 /* movzwl */
411 tcg_out_modrm(s, 0xb7 | P_EXT | P_REXW, r0, r0);
412 } else if (c == ARITH_AND && val == 0xffffffffu) {
413 /* 32-bit mov zero extends */
414 tcg_out_modrm(s, 0x8b, r0, r0);
415 } else if (val == (int32_t)val) {
416 tcg_out_modrm(s, 0x81 | P_REXW, c, r0);
417 tcg_out32(s, val);
418 } else if (c == ARITH_AND && val == (uint32_t)val) {
419 tcg_out_modrm(s, 0x81, c, r0);
420 tcg_out32(s, val);
421 } else {
422 tcg_abort();
423 }
424 }
425
426 static void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
427 {
428 if (val != 0)
429 tgen_arithi64(s, ARITH_ADD, reg, val);
430 }
431
432 static void tcg_out_jxx(TCGContext *s, int opc, int label_index)
433 {
434 int32_t val, val1;
435 TCGLabel *l = &s->labels[label_index];
436
437 if (l->has_value) {
438 val = l->u.value - (tcg_target_long)s->code_ptr;
439 val1 = val - 2;
440 if ((int8_t)val1 == val1) {
441 if (opc == -1)
442 tcg_out8(s, 0xeb);
443 else
444 tcg_out8(s, 0x70 + opc);
445 tcg_out8(s, val1);
446 } else {
447 if (opc == -1) {
448 tcg_out8(s, 0xe9);
449 tcg_out32(s, val - 5);
450 } else {
451 tcg_out8(s, 0x0f);
452 tcg_out8(s, 0x80 + opc);
453 tcg_out32(s, val - 6);
454 }
455 }
456 } else {
457 if (opc == -1) {
458 tcg_out8(s, 0xe9);
459 } else {
460 tcg_out8(s, 0x0f);
461 tcg_out8(s, 0x80 + opc);
462 }
463 tcg_out_reloc(s, s->code_ptr, R_386_PC32, label_index, -4);
464 s->code_ptr += 4;
465 }
466 }
467
468 static void tcg_out_brcond(TCGContext *s, int cond,
469 TCGArg arg1, TCGArg arg2, int const_arg2,
470 int label_index, int rexw)
471 {
472 if (const_arg2) {
473 if (arg2 == 0) {
474 /* test r, r */
475 tcg_out_modrm(s, 0x85 | rexw, arg1, arg1);
476 } else {
477 if (rexw)
478 tgen_arithi64(s, ARITH_CMP, arg1, arg2);
479 else
480 tgen_arithi32(s, ARITH_CMP, arg1, arg2);
481 }
482 } else {
483 tcg_out_modrm(s, 0x01 | (ARITH_CMP << 3) | rexw, arg2, arg1);
484 }
485 tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index);
486 }
487
488 #if defined(CONFIG_SOFTMMU)
489
490 #include "../../softmmu_defs.h"
491
492 static void *qemu_ld_helpers[4] = {
493 __ldb_mmu,
494 __ldw_mmu,
495 __ldl_mmu,
496 __ldq_mmu,
497 };
498
499 static void *qemu_st_helpers[4] = {
500 __stb_mmu,
501 __stw_mmu,
502 __stl_mmu,
503 __stq_mmu,
504 };
505 #endif
506
507 static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
508 int opc)
509 {
510 int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, rexw;
511 #if defined(CONFIG_SOFTMMU)
512 uint8_t *label1_ptr, *label2_ptr;
513 #endif
514
515 data_reg = *args++;
516 addr_reg = *args++;
517 mem_index = *args;
518 s_bits = opc & 3;
519
520 r0 = TCG_REG_RDI;
521 r1 = TCG_REG_RSI;
522
523 #if TARGET_LONG_BITS == 32
524 rexw = 0;
525 #else
526 rexw = P_REXW;
527 #endif
528 #if defined(CONFIG_SOFTMMU)
529 /* mov */
530 tcg_out_modrm(s, 0x8b | rexw, r1, addr_reg);
531
532 /* mov */
533 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
534
535 tcg_out_modrm(s, 0xc1 | rexw, 5, r1); /* shr $x, r1 */
536 tcg_out8(s, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
537
538 tcg_out_modrm(s, 0x81 | rexw, 4, r0); /* andl $x, r0 */
539 tcg_out32(s, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
540
541 tcg_out_modrm(s, 0x81, 4, r1); /* andl $x, r1 */
542 tcg_out32(s, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
543
544 /* lea offset(r1, env), r1 */
545 tcg_out_modrm_offset2(s, 0x8d | P_REXW, r1, r1, TCG_AREG0, 0,
546 offsetof(CPUState, tlb_table[mem_index][0].addr_read));
547
548 /* cmp 0(r1), r0 */
549 tcg_out_modrm_offset(s, 0x3b | rexw, r0, r1, 0);
550
551 /* mov */
552 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
553
554 /* je label1 */
555 tcg_out8(s, 0x70 + JCC_JE);
556 label1_ptr = s->code_ptr;
557 s->code_ptr++;
558
559 /* XXX: move that code at the end of the TB */
560 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_RSI, mem_index);
561 tcg_out8(s, 0xe8);
562 tcg_out32(s, (tcg_target_long)qemu_ld_helpers[s_bits] -
563 (tcg_target_long)s->code_ptr - 4);
564
565 switch(opc) {
566 case 0 | 4:
567 /* movsbq */
568 tcg_out_modrm(s, 0xbe | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
569 break;
570 case 1 | 4:
571 /* movswq */
572 tcg_out_modrm(s, 0xbf | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
573 break;
574 case 2 | 4:
575 /* movslq */
576 tcg_out_modrm(s, 0x63 | P_REXW, data_reg, TCG_REG_RAX);
577 break;
578 case 0:
579 /* movzbq */
580 tcg_out_modrm(s, 0xb6 | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
581 break;
582 case 1:
583 /* movzwq */
584 tcg_out_modrm(s, 0xb7 | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
585 break;
586 case 2:
587 default:
588 /* movl */
589 tcg_out_modrm(s, 0x8b, data_reg, TCG_REG_RAX);
590 break;
591 case 3:
592 tcg_out_mov(s, data_reg, TCG_REG_RAX);
593 break;
594 }
595
596 /* jmp label2 */
597 tcg_out8(s, 0xeb);
598 label2_ptr = s->code_ptr;
599 s->code_ptr++;
600
601 /* label1: */
602 *label1_ptr = s->code_ptr - label1_ptr - 1;
603
604 /* add x(r1), r0 */
605 tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
606 offsetof(CPUTLBEntry, addr_read));
607 #else
608 r0 = addr_reg;
609 #endif
610
611 #ifdef TARGET_WORDS_BIGENDIAN
612 bswap = 1;
613 #else
614 bswap = 0;
615 #endif
616 switch(opc) {
617 case 0:
618 /* movzbl */
619 tcg_out_modrm_offset(s, 0xb6 | P_EXT, data_reg, r0, 0);
620 break;
621 case 0 | 4:
622 /* movsbX */
623 tcg_out_modrm_offset(s, 0xbe | P_EXT | rexw, data_reg, r0, 0);
624 break;
625 case 1:
626 /* movzwl */
627 tcg_out_modrm_offset(s, 0xb7 | P_EXT, data_reg, r0, 0);
628 if (bswap) {
629 /* rolw $8, data_reg */
630 tcg_out8(s, 0x66);
631 tcg_out_modrm(s, 0xc1, 0, data_reg);
632 tcg_out8(s, 8);
633 }
634 break;
635 case 1 | 4:
636 if (bswap) {
637 /* movzwl */
638 tcg_out_modrm_offset(s, 0xb7 | P_EXT, data_reg, r0, 0);
639 /* rolw $8, data_reg */
640 tcg_out8(s, 0x66);
641 tcg_out_modrm(s, 0xc1, 0, data_reg);
642 tcg_out8(s, 8);
643
644 /* movswX data_reg, data_reg */
645 tcg_out_modrm(s, 0xbf | P_EXT | rexw, data_reg, data_reg);
646 } else {
647 /* movswX */
648 tcg_out_modrm_offset(s, 0xbf | P_EXT | rexw, data_reg, r0, 0);
649 }
650 break;
651 case 2:
652 /* movl (r0), data_reg */
653 tcg_out_modrm_offset(s, 0x8b, data_reg, r0, 0);
654 if (bswap) {
655 /* bswap */
656 tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT, 0, data_reg, 0);
657 }
658 break;
659 case 2 | 4:
660 if (bswap) {
661 /* movl (r0), data_reg */
662 tcg_out_modrm_offset(s, 0x8b, data_reg, r0, 0);
663 /* bswap */
664 tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT, 0, data_reg, 0);
665 /* movslq */
666 tcg_out_modrm(s, 0x63 | P_REXW, data_reg, data_reg);
667 } else {
668 /* movslq */
669 tcg_out_modrm_offset(s, 0x63 | P_REXW, data_reg, r0, 0);
670 }
671 break;
672 case 3:
673 /* movq (r0), data_reg */
674 tcg_out_modrm_offset(s, 0x8b | P_REXW, data_reg, r0, 0);
675 if (bswap) {
676 /* bswap */
677 tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT | P_REXW, 0, data_reg, 0);
678 }
679 break;
680 default:
681 tcg_abort();
682 }
683
684 #if defined(CONFIG_SOFTMMU)
685 /* label2: */
686 *label2_ptr = s->code_ptr - label2_ptr - 1;
687 #endif
688 }
689
690 static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
691 int opc)
692 {
693 int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, rexw;
694 #if defined(CONFIG_SOFTMMU)
695 uint8_t *label1_ptr, *label2_ptr;
696 #endif
697
698 data_reg = *args++;
699 addr_reg = *args++;
700 mem_index = *args;
701
702 s_bits = opc;
703
704 r0 = TCG_REG_RDI;
705 r1 = TCG_REG_RSI;
706
707 #if TARGET_LONG_BITS == 32
708 rexw = 0;
709 #else
710 rexw = P_REXW;
711 #endif
712 #if defined(CONFIG_SOFTMMU)
713 /* mov */
714 tcg_out_modrm(s, 0x8b | rexw, r1, addr_reg);
715
716 /* mov */
717 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
718
719 tcg_out_modrm(s, 0xc1 | rexw, 5, r1); /* shr $x, r1 */
720 tcg_out8(s, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
721
722 tcg_out_modrm(s, 0x81 | rexw, 4, r0); /* andl $x, r0 */
723 tcg_out32(s, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
724
725 tcg_out_modrm(s, 0x81, 4, r1); /* andl $x, r1 */
726 tcg_out32(s, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
727
728 /* lea offset(r1, env), r1 */
729 tcg_out_modrm_offset2(s, 0x8d | P_REXW, r1, r1, TCG_AREG0, 0,
730 offsetof(CPUState, tlb_table[mem_index][0].addr_write));
731
732 /* cmp 0(r1), r0 */
733 tcg_out_modrm_offset(s, 0x3b | rexw, r0, r1, 0);
734
735 /* mov */
736 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
737
738 /* je label1 */
739 tcg_out8(s, 0x70 + JCC_JE);
740 label1_ptr = s->code_ptr;
741 s->code_ptr++;
742
743 /* XXX: move that code at the end of the TB */
744 switch(opc) {
745 case 0:
746 /* movzbl */
747 tcg_out_modrm(s, 0xb6 | P_EXT | P_REXB, TCG_REG_RSI, data_reg);
748 break;
749 case 1:
750 /* movzwl */
751 tcg_out_modrm(s, 0xb7 | P_EXT, TCG_REG_RSI, data_reg);
752 break;
753 case 2:
754 /* movl */
755 tcg_out_modrm(s, 0x8b, TCG_REG_RSI, data_reg);
756 break;
757 default:
758 case 3:
759 tcg_out_mov(s, TCG_REG_RSI, data_reg);
760 break;
761 }
762 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_RDX, mem_index);
763 tcg_out8(s, 0xe8);
764 tcg_out32(s, (tcg_target_long)qemu_st_helpers[s_bits] -
765 (tcg_target_long)s->code_ptr - 4);
766
767 /* jmp label2 */
768 tcg_out8(s, 0xeb);
769 label2_ptr = s->code_ptr;
770 s->code_ptr++;
771
772 /* label1: */
773 *label1_ptr = s->code_ptr - label1_ptr - 1;
774
775 /* add x(r1), r0 */
776 tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
777 offsetof(CPUTLBEntry, addr_write));
778 #else
779 r0 = addr_reg;
780 #endif
781
782 #ifdef TARGET_WORDS_BIGENDIAN
783 bswap = 1;
784 #else
785 bswap = 0;
786 #endif
787 switch(opc) {
788 case 0:
789 /* movb */
790 tcg_out_modrm_offset(s, 0x88 | P_REXB, data_reg, r0, 0);
791 break;
792 case 1:
793 if (bswap) {
794 tcg_out_modrm(s, 0x8b, r1, data_reg); /* movl */
795 tcg_out8(s, 0x66); /* rolw $8, %ecx */
796 tcg_out_modrm(s, 0xc1, 0, r1);
797 tcg_out8(s, 8);
798 data_reg = r1;
799 }
800 /* movw */
801 tcg_out8(s, 0x66);
802 tcg_out_modrm_offset(s, 0x89, data_reg, r0, 0);
803 break;
804 case 2:
805 if (bswap) {
806 tcg_out_modrm(s, 0x8b, r1, data_reg); /* movl */
807 /* bswap data_reg */
808 tcg_out_opc(s, (0xc8 + r1) | P_EXT, 0, r1, 0);
809 data_reg = r1;
810 }
811 /* movl */
812 tcg_out_modrm_offset(s, 0x89, data_reg, r0, 0);
813 break;
814 case 3:
815 if (bswap) {
816 tcg_out_mov(s, r1, data_reg);
817 /* bswap data_reg */
818 tcg_out_opc(s, (0xc8 + r1) | P_EXT | P_REXW, 0, r1, 0);
819 data_reg = r1;
820 }
821 /* movq */
822 tcg_out_modrm_offset(s, 0x89 | P_REXW, data_reg, r0, 0);
823 break;
824 default:
825 tcg_abort();
826 }
827
828 #if defined(CONFIG_SOFTMMU)
829 /* label2: */
830 *label2_ptr = s->code_ptr - label2_ptr - 1;
831 #endif
832 }
833
834 static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
835 const int *const_args)
836 {
837 int c;
838
839 switch(opc) {
840 case INDEX_op_exit_tb:
841 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RAX, args[0]);
842 tcg_out8(s, 0xe9); /* jmp tb_ret_addr */
843 tcg_out32(s, tb_ret_addr - s->code_ptr - 4);
844 break;
845 case INDEX_op_goto_tb:
846 if (s->tb_jmp_offset) {
847 /* direct jump method */
848 tcg_out8(s, 0xe9); /* jmp im */
849 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
850 tcg_out32(s, 0);
851 } else {
852 /* indirect jump method */
853 /* jmp Ev */
854 tcg_out_modrm_offset(s, 0xff, 4, -1,
855 (tcg_target_long)(s->tb_next +
856 args[0]));
857 }
858 s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
859 break;
860 case INDEX_op_call:
861 if (const_args[0]) {
862 tcg_out8(s, 0xe8);
863 tcg_out32(s, args[0] - (tcg_target_long)s->code_ptr - 4);
864 } else {
865 tcg_out_modrm(s, 0xff, 2, args[0]);
866 }
867 break;
868 case INDEX_op_jmp:
869 if (const_args[0]) {
870 tcg_out8(s, 0xe9);
871 tcg_out32(s, args[0] - (tcg_target_long)s->code_ptr - 4);
872 } else {
873 tcg_out_modrm(s, 0xff, 4, args[0]);
874 }
875 break;
876 case INDEX_op_br:
877 tcg_out_jxx(s, JCC_JMP, args[0]);
878 break;
879 case INDEX_op_movi_i32:
880 tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
881 break;
882 case INDEX_op_movi_i64:
883 tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]);
884 break;
885 case INDEX_op_ld8u_i32:
886 case INDEX_op_ld8u_i64:
887 /* movzbl */
888 tcg_out_modrm_offset(s, 0xb6 | P_EXT, args[0], args[1], args[2]);
889 break;
890 case INDEX_op_ld8s_i32:
891 /* movsbl */
892 tcg_out_modrm_offset(s, 0xbe | P_EXT, args[0], args[1], args[2]);
893 break;
894 case INDEX_op_ld8s_i64:
895 /* movsbq */
896 tcg_out_modrm_offset(s, 0xbe | P_EXT | P_REXW, args[0], args[1], args[2]);
897 break;
898 case INDEX_op_ld16u_i32:
899 case INDEX_op_ld16u_i64:
900 /* movzwl */
901 tcg_out_modrm_offset(s, 0xb7 | P_EXT, args[0], args[1], args[2]);
902 break;
903 case INDEX_op_ld16s_i32:
904 /* movswl */
905 tcg_out_modrm_offset(s, 0xbf | P_EXT, args[0], args[1], args[2]);
906 break;
907 case INDEX_op_ld16s_i64:
908 /* movswq */
909 tcg_out_modrm_offset(s, 0xbf | P_EXT | P_REXW, args[0], args[1], args[2]);
910 break;
911 case INDEX_op_ld_i32:
912 case INDEX_op_ld32u_i64:
913 /* movl */
914 tcg_out_modrm_offset(s, 0x8b, args[0], args[1], args[2]);
915 break;
916 case INDEX_op_ld32s_i64:
917 /* movslq */
918 tcg_out_modrm_offset(s, 0x63 | P_REXW, args[0], args[1], args[2]);
919 break;
920 case INDEX_op_ld_i64:
921 /* movq */
922 tcg_out_modrm_offset(s, 0x8b | P_REXW, args[0], args[1], args[2]);
923 break;
924
925 case INDEX_op_st8_i32:
926 case INDEX_op_st8_i64:
927 /* movb */
928 tcg_out_modrm_offset(s, 0x88 | P_REXB, args[0], args[1], args[2]);
929 break;
930 case INDEX_op_st16_i32:
931 case INDEX_op_st16_i64:
932 /* movw */
933 tcg_out8(s, 0x66);
934 tcg_out_modrm_offset(s, 0x89, args[0], args[1], args[2]);
935 break;
936 case INDEX_op_st_i32:
937 case INDEX_op_st32_i64:
938 /* movl */
939 tcg_out_modrm_offset(s, 0x89, args[0], args[1], args[2]);
940 break;
941 case INDEX_op_st_i64:
942 /* movq */
943 tcg_out_modrm_offset(s, 0x89 | P_REXW, args[0], args[1], args[2]);
944 break;
945
946 case INDEX_op_sub_i32:
947 c = ARITH_SUB;
948 goto gen_arith32;
949 case INDEX_op_and_i32:
950 c = ARITH_AND;
951 goto gen_arith32;
952 case INDEX_op_or_i32:
953 c = ARITH_OR;
954 goto gen_arith32;
955 case INDEX_op_xor_i32:
956 c = ARITH_XOR;
957 goto gen_arith32;
958 case INDEX_op_add_i32:
959 c = ARITH_ADD;
960 gen_arith32:
961 if (const_args[2]) {
962 tgen_arithi32(s, c, args[0], args[2]);
963 } else {
964 tcg_out_modrm(s, 0x01 | (c << 3), args[2], args[0]);
965 }
966 break;
967
968 case INDEX_op_sub_i64:
969 c = ARITH_SUB;
970 goto gen_arith64;
971 case INDEX_op_and_i64:
972 c = ARITH_AND;
973 goto gen_arith64;
974 case INDEX_op_or_i64:
975 c = ARITH_OR;
976 goto gen_arith64;
977 case INDEX_op_xor_i64:
978 c = ARITH_XOR;
979 goto gen_arith64;
980 case INDEX_op_add_i64:
981 c = ARITH_ADD;
982 gen_arith64:
983 if (const_args[2]) {
984 tgen_arithi64(s, c, args[0], args[2]);
985 } else {
986 tcg_out_modrm(s, 0x01 | (c << 3) | P_REXW, args[2], args[0]);
987 }
988 break;
989
990 case INDEX_op_mul_i32:
991 if (const_args[2]) {
992 int32_t val;
993 val = args[2];
994 if (val == (int8_t)val) {
995 tcg_out_modrm(s, 0x6b, args[0], args[0]);
996 tcg_out8(s, val);
997 } else {
998 tcg_out_modrm(s, 0x69, args[0], args[0]);
999 tcg_out32(s, val);
1000 }
1001 } else {
1002 tcg_out_modrm(s, 0xaf | P_EXT, args[0], args[2]);
1003 }
1004 break;
1005 case INDEX_op_mul_i64:
1006 if (const_args[2]) {
1007 int32_t val;
1008 val = args[2];
1009 if (val == (int8_t)val) {
1010 tcg_out_modrm(s, 0x6b | P_REXW, args[0], args[0]);
1011 tcg_out8(s, val);
1012 } else {
1013 tcg_out_modrm(s, 0x69 | P_REXW, args[0], args[0]);
1014 tcg_out32(s, val);
1015 }
1016 } else {
1017 tcg_out_modrm(s, 0xaf | P_EXT | P_REXW, args[0], args[2]);
1018 }
1019 break;
1020 case INDEX_op_div2_i32:
1021 tcg_out_modrm(s, 0xf7, 7, args[4]);
1022 break;
1023 case INDEX_op_divu2_i32:
1024 tcg_out_modrm(s, 0xf7, 6, args[4]);
1025 break;
1026 case INDEX_op_div2_i64:
1027 tcg_out_modrm(s, 0xf7 | P_REXW, 7, args[4]);
1028 break;
1029 case INDEX_op_divu2_i64:
1030 tcg_out_modrm(s, 0xf7 | P_REXW, 6, args[4]);
1031 break;
1032
1033 case INDEX_op_shl_i32:
1034 c = SHIFT_SHL;
1035 gen_shift32:
1036 if (const_args[2]) {
1037 if (args[2] == 1) {
1038 tcg_out_modrm(s, 0xd1, c, args[0]);
1039 } else {
1040 tcg_out_modrm(s, 0xc1, c, args[0]);
1041 tcg_out8(s, args[2]);
1042 }
1043 } else {
1044 tcg_out_modrm(s, 0xd3, c, args[0]);
1045 }
1046 break;
1047 case INDEX_op_shr_i32:
1048 c = SHIFT_SHR;
1049 goto gen_shift32;
1050 case INDEX_op_sar_i32:
1051 c = SHIFT_SAR;
1052 goto gen_shift32;
1053 case INDEX_op_rotl_i32:
1054 c = SHIFT_ROL;
1055 goto gen_shift32;
1056 case INDEX_op_rotr_i32:
1057 c = SHIFT_ROR;
1058 goto gen_shift32;
1059
1060 case INDEX_op_shl_i64:
1061 c = SHIFT_SHL;
1062 gen_shift64:
1063 if (const_args[2]) {
1064 if (args[2] == 1) {
1065 tcg_out_modrm(s, 0xd1 | P_REXW, c, args[0]);
1066 } else {
1067 tcg_out_modrm(s, 0xc1 | P_REXW, c, args[0]);
1068 tcg_out8(s, args[2]);
1069 }
1070 } else {
1071 tcg_out_modrm(s, 0xd3 | P_REXW, c, args[0]);
1072 }
1073 break;
1074 case INDEX_op_shr_i64:
1075 c = SHIFT_SHR;
1076 goto gen_shift64;
1077 case INDEX_op_sar_i64:
1078 c = SHIFT_SAR;
1079 goto gen_shift64;
1080 case INDEX_op_rotl_i64:
1081 c = SHIFT_ROL;
1082 goto gen_shift64;
1083 case INDEX_op_rotr_i64:
1084 c = SHIFT_ROR;
1085 goto gen_shift64;
1086
1087 case INDEX_op_brcond_i32:
1088 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
1089 args[3], 0);
1090 break;
1091 case INDEX_op_brcond_i64:
1092 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
1093 args[3], P_REXW);
1094 break;
1095
1096 case INDEX_op_bswap16_i32:
1097 case INDEX_op_bswap16_i64:
1098 tcg_out8(s, 0x66);
1099 tcg_out_modrm(s, 0xc1, SHIFT_ROL, args[0]);
1100 tcg_out8(s, 8);
1101 break;
1102 case INDEX_op_bswap32_i32:
1103 case INDEX_op_bswap32_i64:
1104 tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT, 0, args[0], 0);
1105 break;
1106 case INDEX_op_bswap64_i64:
1107 tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT | P_REXW, 0, args[0], 0);
1108 break;
1109
1110 case INDEX_op_neg_i32:
1111 tcg_out_modrm(s, 0xf7, 3, args[0]);
1112 break;
1113 case INDEX_op_neg_i64:
1114 tcg_out_modrm(s, 0xf7 | P_REXW, 3, args[0]);
1115 break;
1116
1117 case INDEX_op_not_i32:
1118 tcg_out_modrm(s, 0xf7, 2, args[0]);
1119 break;
1120 case INDEX_op_not_i64:
1121 tcg_out_modrm(s, 0xf7 | P_REXW, 2, args[0]);
1122 break;
1123
1124 case INDEX_op_ext8s_i32:
1125 tcg_out_modrm(s, 0xbe | P_EXT | P_REXB, args[0], args[1]);
1126 break;
1127 case INDEX_op_ext16s_i32:
1128 tcg_out_modrm(s, 0xbf | P_EXT, args[0], args[1]);
1129 break;
1130 case INDEX_op_ext8s_i64:
1131 tcg_out_modrm(s, 0xbe | P_EXT | P_REXW, args[0], args[1]);
1132 break;
1133 case INDEX_op_ext16s_i64:
1134 tcg_out_modrm(s, 0xbf | P_EXT | P_REXW, args[0], args[1]);
1135 break;
1136 case INDEX_op_ext32s_i64:
1137 tcg_out_modrm(s, 0x63 | P_REXW, args[0], args[1]);
1138 break;
1139
1140 case INDEX_op_qemu_ld8u:
1141 tcg_out_qemu_ld(s, args, 0);
1142 break;
1143 case INDEX_op_qemu_ld8s:
1144 tcg_out_qemu_ld(s, args, 0 | 4);
1145 break;
1146 case INDEX_op_qemu_ld16u:
1147 tcg_out_qemu_ld(s, args, 1);
1148 break;
1149 case INDEX_op_qemu_ld16s:
1150 tcg_out_qemu_ld(s, args, 1 | 4);
1151 break;
1152 case INDEX_op_qemu_ld32u:
1153 tcg_out_qemu_ld(s, args, 2);
1154 break;
1155 case INDEX_op_qemu_ld32s:
1156 tcg_out_qemu_ld(s, args, 2 | 4);
1157 break;
1158 case INDEX_op_qemu_ld64:
1159 tcg_out_qemu_ld(s, args, 3);
1160 break;
1161
1162 case INDEX_op_qemu_st8:
1163 tcg_out_qemu_st(s, args, 0);
1164 break;
1165 case INDEX_op_qemu_st16:
1166 tcg_out_qemu_st(s, args, 1);
1167 break;
1168 case INDEX_op_qemu_st32:
1169 tcg_out_qemu_st(s, args, 2);
1170 break;
1171 case INDEX_op_qemu_st64:
1172 tcg_out_qemu_st(s, args, 3);
1173 break;
1174
1175 default:
1176 tcg_abort();
1177 }
1178 }
1179
1180 static int tcg_target_callee_save_regs[] = {
1181 TCG_REG_RBP,
1182 TCG_REG_RBX,
1183 TCG_REG_R12,
1184 TCG_REG_R13,
1185 /* TCG_REG_R14, */ /* currently used for the global env, so no
1186 need to save */
1187 TCG_REG_R15,
1188 };
1189
1190 static inline void tcg_out_push(TCGContext *s, int reg)
1191 {
1192 tcg_out_opc(s, (0x50 + (reg & 7)), 0, reg, 0);
1193 }
1194
1195 static inline void tcg_out_pop(TCGContext *s, int reg)
1196 {
1197 tcg_out_opc(s, (0x58 + (reg & 7)), 0, reg, 0);
1198 }
1199
1200 /* Generate global QEMU prologue and epilogue code */
1201 void tcg_target_qemu_prologue(TCGContext *s)
1202 {
1203 int i, frame_size, push_size, stack_addend;
1204
1205 /* TB prologue */
1206 /* save all callee saved registers */
1207 for(i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); i++) {
1208 tcg_out_push(s, tcg_target_callee_save_regs[i]);
1209
1210 }
1211 /* reserve some stack space */
1212 push_size = 8 + ARRAY_SIZE(tcg_target_callee_save_regs) * 8;
1213 frame_size = push_size + TCG_STATIC_CALL_ARGS_SIZE;
1214 frame_size = (frame_size + TCG_TARGET_STACK_ALIGN - 1) &
1215 ~(TCG_TARGET_STACK_ALIGN - 1);
1216 stack_addend = frame_size - push_size;
1217 tcg_out_addi(s, TCG_REG_RSP, -stack_addend);
1218
1219 tcg_out_modrm(s, 0xff, 4, TCG_REG_RDI); /* jmp *%rdi */
1220
1221 /* TB epilogue */
1222 tb_ret_addr = s->code_ptr;
1223 tcg_out_addi(s, TCG_REG_RSP, stack_addend);
1224 for(i = ARRAY_SIZE(tcg_target_callee_save_regs) - 1; i >= 0; i--) {
1225 tcg_out_pop(s, tcg_target_callee_save_regs[i]);
1226 }
1227 tcg_out8(s, 0xc3); /* ret */
1228 }
1229
1230 static const TCGTargetOpDef x86_64_op_defs[] = {
1231 { INDEX_op_exit_tb, { } },
1232 { INDEX_op_goto_tb, { } },
1233 { INDEX_op_call, { "ri" } }, /* XXX: might need a specific constant constraint */
1234 { INDEX_op_jmp, { "ri" } }, /* XXX: might need a specific constant constraint */
1235 { INDEX_op_br, { } },
1236
1237 { INDEX_op_mov_i32, { "r", "r" } },
1238 { INDEX_op_movi_i32, { "r" } },
1239 { INDEX_op_ld8u_i32, { "r", "r" } },
1240 { INDEX_op_ld8s_i32, { "r", "r" } },
1241 { INDEX_op_ld16u_i32, { "r", "r" } },
1242 { INDEX_op_ld16s_i32, { "r", "r" } },
1243 { INDEX_op_ld_i32, { "r", "r" } },
1244 { INDEX_op_st8_i32, { "r", "r" } },
1245 { INDEX_op_st16_i32, { "r", "r" } },
1246 { INDEX_op_st_i32, { "r", "r" } },
1247
1248 { INDEX_op_add_i32, { "r", "0", "ri" } },
1249 { INDEX_op_mul_i32, { "r", "0", "ri" } },
1250 { INDEX_op_div2_i32, { "a", "d", "0", "1", "r" } },
1251 { INDEX_op_divu2_i32, { "a", "d", "0", "1", "r" } },
1252 { INDEX_op_sub_i32, { "r", "0", "ri" } },
1253 { INDEX_op_and_i32, { "r", "0", "ri" } },
1254 { INDEX_op_or_i32, { "r", "0", "ri" } },
1255 { INDEX_op_xor_i32, { "r", "0", "ri" } },
1256
1257 { INDEX_op_shl_i32, { "r", "0", "ci" } },
1258 { INDEX_op_shr_i32, { "r", "0", "ci" } },
1259 { INDEX_op_sar_i32, { "r", "0", "ci" } },
1260 { INDEX_op_rotl_i32, { "r", "0", "ci" } },
1261 { INDEX_op_rotr_i32, { "r", "0", "ci" } },
1262
1263 { INDEX_op_brcond_i32, { "r", "ri" } },
1264
1265 { INDEX_op_mov_i64, { "r", "r" } },
1266 { INDEX_op_movi_i64, { "r" } },
1267 { INDEX_op_ld8u_i64, { "r", "r" } },
1268 { INDEX_op_ld8s_i64, { "r", "r" } },
1269 { INDEX_op_ld16u_i64, { "r", "r" } },
1270 { INDEX_op_ld16s_i64, { "r", "r" } },
1271 { INDEX_op_ld32u_i64, { "r", "r" } },
1272 { INDEX_op_ld32s_i64, { "r", "r" } },
1273 { INDEX_op_ld_i64, { "r", "r" } },
1274 { INDEX_op_st8_i64, { "r", "r" } },
1275 { INDEX_op_st16_i64, { "r", "r" } },
1276 { INDEX_op_st32_i64, { "r", "r" } },
1277 { INDEX_op_st_i64, { "r", "r" } },
1278
1279 { INDEX_op_add_i64, { "r", "0", "re" } },
1280 { INDEX_op_mul_i64, { "r", "0", "re" } },
1281 { INDEX_op_div2_i64, { "a", "d", "0", "1", "r" } },
1282 { INDEX_op_divu2_i64, { "a", "d", "0", "1", "r" } },
1283 { INDEX_op_sub_i64, { "r", "0", "re" } },
1284 { INDEX_op_and_i64, { "r", "0", "reZ" } },
1285 { INDEX_op_or_i64, { "r", "0", "re" } },
1286 { INDEX_op_xor_i64, { "r", "0", "re" } },
1287
1288 { INDEX_op_shl_i64, { "r", "0", "ci" } },
1289 { INDEX_op_shr_i64, { "r", "0", "ci" } },
1290 { INDEX_op_sar_i64, { "r", "0", "ci" } },
1291 { INDEX_op_rotl_i64, { "r", "0", "ci" } },
1292 { INDEX_op_rotr_i64, { "r", "0", "ci" } },
1293
1294 { INDEX_op_brcond_i64, { "r", "re" } },
1295
1296 { INDEX_op_bswap16_i32, { "r", "0" } },
1297 { INDEX_op_bswap16_i64, { "r", "0" } },
1298 { INDEX_op_bswap32_i32, { "r", "0" } },
1299 { INDEX_op_bswap32_i64, { "r", "0" } },
1300 { INDEX_op_bswap64_i64, { "r", "0" } },
1301
1302 { INDEX_op_neg_i32, { "r", "0" } },
1303 { INDEX_op_neg_i64, { "r", "0" } },
1304
1305 { INDEX_op_not_i32, { "r", "0" } },
1306 { INDEX_op_not_i64, { "r", "0" } },
1307
1308 { INDEX_op_ext8s_i32, { "r", "r"} },
1309 { INDEX_op_ext16s_i32, { "r", "r"} },
1310 { INDEX_op_ext8s_i64, { "r", "r"} },
1311 { INDEX_op_ext16s_i64, { "r", "r"} },
1312 { INDEX_op_ext32s_i64, { "r", "r"} },
1313
1314 { INDEX_op_qemu_ld8u, { "r", "L" } },
1315 { INDEX_op_qemu_ld8s, { "r", "L" } },
1316 { INDEX_op_qemu_ld16u, { "r", "L" } },
1317 { INDEX_op_qemu_ld16s, { "r", "L" } },
1318 { INDEX_op_qemu_ld32u, { "r", "L" } },
1319 { INDEX_op_qemu_ld32s, { "r", "L" } },
1320 { INDEX_op_qemu_ld64, { "r", "L" } },
1321
1322 { INDEX_op_qemu_st8, { "L", "L" } },
1323 { INDEX_op_qemu_st16, { "L", "L" } },
1324 { INDEX_op_qemu_st32, { "L", "L" } },
1325 { INDEX_op_qemu_st64, { "L", "L", "L" } },
1326
1327 { -1 },
1328 };
1329
1330 void tcg_target_init(TCGContext *s)
1331 {
1332 /* fail safe */
1333 if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry))
1334 tcg_abort();
1335
1336 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff);
1337 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffff);
1338 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1339 (1 << TCG_REG_RDI) |
1340 (1 << TCG_REG_RSI) |
1341 (1 << TCG_REG_RDX) |
1342 (1 << TCG_REG_RCX) |
1343 (1 << TCG_REG_R8) |
1344 (1 << TCG_REG_R9) |
1345 (1 << TCG_REG_RAX) |
1346 (1 << TCG_REG_R10) |
1347 (1 << TCG_REG_R11));
1348
1349 tcg_regset_clear(s->reserved_regs);
1350 tcg_regset_set_reg(s->reserved_regs, TCG_REG_RSP);
1351
1352 tcg_add_target_add_op_defs(x86_64_op_defs);
1353 }
QEmu