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qcow2: Refactor qcow2_free_any_clusters
[qemu/rayw.git] / tci.c
blobc43fe7d260e3b942ca674511b1a506d86e193460
1 /*
2 * Tiny Code Interpreter for QEMU
3 *
4 * Copyright (c) 2009, 2011 Stefan Weil
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "config.h"
21
22 /* Defining NDEBUG disables assertions (which makes the code faster). */
23 #if !defined(CONFIG_TCG_DEBUG) && !defined(NDEBUG)
24 # define NDEBUG
25 #endif
26
27 #include "qemu-common.h"
28 #include "dyngen-exec.h" /* env */
29 #include "exec-all.h" /* MAX_OPC_PARAM_IARGS */
30 #include "tcg-op.h"
31
32 /* Marker for missing code. */
33 #define TODO() \
34 do { \
35 fprintf(stderr, "TODO %s:%u: %s()\n", \
36 __FILE__, __LINE__, __func__); \
37 tcg_abort(); \
38 } while (0)
39
40 #if MAX_OPC_PARAM_IARGS != 4
41 # error Fix needed, number of supported input arguments changed!
42 #endif
43 #if TCG_TARGET_REG_BITS == 32
44 typedef uint64_t (*helper_function)(tcg_target_ulong, tcg_target_ulong,
45 tcg_target_ulong, tcg_target_ulong,
46 tcg_target_ulong, tcg_target_ulong,
47 tcg_target_ulong, tcg_target_ulong);
48 #else
49 typedef uint64_t (*helper_function)(tcg_target_ulong, tcg_target_ulong,
50 tcg_target_ulong, tcg_target_ulong);
51 #endif
52
53 /* TCI can optionally use a global register variable for env. */
54 #if !defined(AREG0)
55 CPUArchState *env;
56 #endif
57
58 /* Targets which don't use GETPC also don't need tci_tb_ptr
59 which makes them a little faster. */
60 #if defined(GETPC)
61 void *tci_tb_ptr;
62 #endif
63
64 static tcg_target_ulong tci_reg[TCG_TARGET_NB_REGS];
65
66 #if !defined(CONFIG_TCG_PASS_AREG0)
67 # define helper_ldb_mmu(env, addr, mmu_idx) __ldb_mmu(addr, mmu_idx)
68 # define helper_ldw_mmu(env, addr, mmu_idx) __ldw_mmu(addr, mmu_idx)
69 # define helper_ldl_mmu(env, addr, mmu_idx) __ldl_mmu(addr, mmu_idx)
70 # define helper_ldq_mmu(env, addr, mmu_idx) __ldq_mmu(addr, mmu_idx)
71 # define helper_stb_mmu(env, addr, val, mmu_idx) __stb_mmu(addr, val, mmu_idx)
72 # define helper_stw_mmu(env, addr, val, mmu_idx) __stw_mmu(addr, val, mmu_idx)
73 # define helper_stl_mmu(env, addr, val, mmu_idx) __stl_mmu(addr, val, mmu_idx)
74 # define helper_stq_mmu(env, addr, val, mmu_idx) __stq_mmu(addr, val, mmu_idx)
75 #endif /* !CONFIG_TCG_PASS_AREG0 */
76
77 static tcg_target_ulong tci_read_reg(TCGReg index)
78 {
79 assert(index < ARRAY_SIZE(tci_reg));
80 return tci_reg[index];
81 }
82
83 #if TCG_TARGET_HAS_ext8s_i32 || TCG_TARGET_HAS_ext8s_i64
84 static int8_t tci_read_reg8s(TCGReg index)
85 {
86 return (int8_t)tci_read_reg(index);
87 }
88 #endif
89
90 #if TCG_TARGET_HAS_ext16s_i32 || TCG_TARGET_HAS_ext16s_i64
91 static int16_t tci_read_reg16s(TCGReg index)
92 {
93 return (int16_t)tci_read_reg(index);
94 }
95 #endif
96
97 #if TCG_TARGET_REG_BITS == 64
98 static int32_t tci_read_reg32s(TCGReg index)
99 {
100 return (int32_t)tci_read_reg(index);
101 }
102 #endif
103
104 static uint8_t tci_read_reg8(TCGReg index)
105 {
106 return (uint8_t)tci_read_reg(index);
107 }
108
109 static uint16_t tci_read_reg16(TCGReg index)
110 {
111 return (uint16_t)tci_read_reg(index);
112 }
113
114 static uint32_t tci_read_reg32(TCGReg index)
115 {
116 return (uint32_t)tci_read_reg(index);
117 }
118
119 #if TCG_TARGET_REG_BITS == 64
120 static uint64_t tci_read_reg64(TCGReg index)
121 {
122 return tci_read_reg(index);
123 }
124 #endif
125
126 static void tci_write_reg(TCGReg index, tcg_target_ulong value)
127 {
128 assert(index < ARRAY_SIZE(tci_reg));
129 assert(index != TCG_AREG0);
130 tci_reg[index] = value;
131 }
132
133 static void tci_write_reg8s(TCGReg index, int8_t value)
134 {
135 tci_write_reg(index, value);
136 }
137
138 static void tci_write_reg16s(TCGReg index, int16_t value)
139 {
140 tci_write_reg(index, value);
141 }
142
143 #if TCG_TARGET_REG_BITS == 64
144 static void tci_write_reg32s(TCGReg index, int32_t value)
145 {
146 tci_write_reg(index, value);
147 }
148 #endif
149
150 static void tci_write_reg8(TCGReg index, uint8_t value)
151 {
152 tci_write_reg(index, value);
153 }
154
155 static void tci_write_reg16(TCGReg index, uint16_t value)
156 {
157 tci_write_reg(index, value);
158 }
159
160 static void tci_write_reg32(TCGReg index, uint32_t value)
161 {
162 tci_write_reg(index, value);
163 }
164
165 #if TCG_TARGET_REG_BITS == 32
166 static void tci_write_reg64(uint32_t high_index, uint32_t low_index,
167 uint64_t value)
168 {
169 tci_write_reg(low_index, value);
170 tci_write_reg(high_index, value >> 32);
171 }
172 #elif TCG_TARGET_REG_BITS == 64
173 static void tci_write_reg64(TCGReg index, uint64_t value)
174 {
175 tci_write_reg(index, value);
176 }
177 #endif
178
179 #if TCG_TARGET_REG_BITS == 32
180 /* Create a 64 bit value from two 32 bit values. */
181 static uint64_t tci_uint64(uint32_t high, uint32_t low)
182 {
183 return ((uint64_t)high << 32) + low;
184 }
185 #endif
186
187 /* Read constant (native size) from bytecode. */
188 static tcg_target_ulong tci_read_i(uint8_t **tb_ptr)
189 {
190 tcg_target_ulong value = *(tcg_target_ulong *)(*tb_ptr);
191 *tb_ptr += sizeof(value);
192 return value;
193 }
194
195 /* Read constant (32 bit) from bytecode. */
196 static uint32_t tci_read_i32(uint8_t **tb_ptr)
197 {
198 uint32_t value = *(uint32_t *)(*tb_ptr);
199 *tb_ptr += sizeof(value);
200 return value;
201 }
202
203 #if TCG_TARGET_REG_BITS == 64
204 /* Read constant (64 bit) from bytecode. */
205 static uint64_t tci_read_i64(uint8_t **tb_ptr)
206 {
207 uint64_t value = *(uint64_t *)(*tb_ptr);
208 *tb_ptr += sizeof(value);
209 return value;
210 }
211 #endif
212
213 /* Read indexed register (native size) from bytecode. */
214 static tcg_target_ulong tci_read_r(uint8_t **tb_ptr)
215 {
216 tcg_target_ulong value = tci_read_reg(**tb_ptr);
217 *tb_ptr += 1;
218 return value;
219 }
220
221 /* Read indexed register (8 bit) from bytecode. */
222 static uint8_t tci_read_r8(uint8_t **tb_ptr)
223 {
224 uint8_t value = tci_read_reg8(**tb_ptr);
225 *tb_ptr += 1;
226 return value;
227 }
228
229 #if TCG_TARGET_HAS_ext8s_i32 || TCG_TARGET_HAS_ext8s_i64
230 /* Read indexed register (8 bit signed) from bytecode. */
231 static int8_t tci_read_r8s(uint8_t **tb_ptr)
232 {
233 int8_t value = tci_read_reg8s(**tb_ptr);
234 *tb_ptr += 1;
235 return value;
236 }
237 #endif
238
239 /* Read indexed register (16 bit) from bytecode. */
240 static uint16_t tci_read_r16(uint8_t **tb_ptr)
241 {
242 uint16_t value = tci_read_reg16(**tb_ptr);
243 *tb_ptr += 1;
244 return value;
245 }
246
247 #if TCG_TARGET_HAS_ext16s_i32 || TCG_TARGET_HAS_ext16s_i64
248 /* Read indexed register (16 bit signed) from bytecode. */
249 static int16_t tci_read_r16s(uint8_t **tb_ptr)
250 {
251 int16_t value = tci_read_reg16s(**tb_ptr);
252 *tb_ptr += 1;
253 return value;
254 }
255 #endif
256
257 /* Read indexed register (32 bit) from bytecode. */
258 static uint32_t tci_read_r32(uint8_t **tb_ptr)
259 {
260 uint32_t value = tci_read_reg32(**tb_ptr);
261 *tb_ptr += 1;
262 return value;
263 }
264
265 #if TCG_TARGET_REG_BITS == 32
266 /* Read two indexed registers (2 * 32 bit) from bytecode. */
267 static uint64_t tci_read_r64(uint8_t **tb_ptr)
268 {
269 uint32_t low = tci_read_r32(tb_ptr);
270 return tci_uint64(tci_read_r32(tb_ptr), low);
271 }
272 #elif TCG_TARGET_REG_BITS == 64
273 /* Read indexed register (32 bit signed) from bytecode. */
274 static int32_t tci_read_r32s(uint8_t **tb_ptr)
275 {
276 int32_t value = tci_read_reg32s(**tb_ptr);
277 *tb_ptr += 1;
278 return value;
279 }
280
281 /* Read indexed register (64 bit) from bytecode. */
282 static uint64_t tci_read_r64(uint8_t **tb_ptr)
283 {
284 uint64_t value = tci_read_reg64(**tb_ptr);
285 *tb_ptr += 1;
286 return value;
287 }
288 #endif
289
290 /* Read indexed register(s) with target address from bytecode. */
291 static target_ulong tci_read_ulong(uint8_t **tb_ptr)
292 {
293 target_ulong taddr = tci_read_r(tb_ptr);
294 #if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
295 taddr += (uint64_t)tci_read_r(tb_ptr) << 32;
296 #endif
297 return taddr;
298 }
299
300 /* Read indexed register or constant (native size) from bytecode. */
301 static tcg_target_ulong tci_read_ri(uint8_t **tb_ptr)
302 {
303 tcg_target_ulong value;
304 TCGReg r = **tb_ptr;
305 *tb_ptr += 1;
306 if (r == TCG_CONST) {
307 value = tci_read_i(tb_ptr);
308 } else {
309 value = tci_read_reg(r);
310 }
311 return value;
312 }
313
314 /* Read indexed register or constant (32 bit) from bytecode. */
315 static uint32_t tci_read_ri32(uint8_t **tb_ptr)
316 {
317 uint32_t value;
318 TCGReg r = **tb_ptr;
319 *tb_ptr += 1;
320 if (r == TCG_CONST) {
321 value = tci_read_i32(tb_ptr);
322 } else {
323 value = tci_read_reg32(r);
324 }
325 return value;
326 }
327
328 #if TCG_TARGET_REG_BITS == 32
329 /* Read two indexed registers or constants (2 * 32 bit) from bytecode. */
330 static uint64_t tci_read_ri64(uint8_t **tb_ptr)
331 {
332 uint32_t low = tci_read_ri32(tb_ptr);
333 return tci_uint64(tci_read_ri32(tb_ptr), low);
334 }
335 #elif TCG_TARGET_REG_BITS == 64
336 /* Read indexed register or constant (64 bit) from bytecode. */
337 static uint64_t tci_read_ri64(uint8_t **tb_ptr)
338 {
339 uint64_t value;
340 TCGReg r = **tb_ptr;
341 *tb_ptr += 1;
342 if (r == TCG_CONST) {
343 value = tci_read_i64(tb_ptr);
344 } else {
345 value = tci_read_reg64(r);
346 }
347 return value;
348 }
349 #endif
350
351 static target_ulong tci_read_label(uint8_t **tb_ptr)
352 {
353 target_ulong label = tci_read_i(tb_ptr);
354 assert(label != 0);
355 return label;
356 }
357
358 static bool tci_compare32(uint32_t u0, uint32_t u1, TCGCond condition)
359 {
360 bool result = false;
361 int32_t i0 = u0;
362 int32_t i1 = u1;
363 switch (condition) {
364 case TCG_COND_EQ:
365 result = (u0 == u1);
366 break;
367 case TCG_COND_NE:
368 result = (u0 != u1);
369 break;
370 case TCG_COND_LT:
371 result = (i0 < i1);
372 break;
373 case TCG_COND_GE:
374 result = (i0 >= i1);
375 break;
376 case TCG_COND_LE:
377 result = (i0 <= i1);
378 break;
379 case TCG_COND_GT:
380 result = (i0 > i1);
381 break;
382 case TCG_COND_LTU:
383 result = (u0 < u1);
384 break;
385 case TCG_COND_GEU:
386 result = (u0 >= u1);
387 break;
388 case TCG_COND_LEU:
389 result = (u0 <= u1);
390 break;
391 case TCG_COND_GTU:
392 result = (u0 > u1);
393 break;
394 default:
395 TODO();
396 }
397 return result;
398 }
399
400 static bool tci_compare64(uint64_t u0, uint64_t u1, TCGCond condition)
401 {
402 bool result = false;
403 int64_t i0 = u0;
404 int64_t i1 = u1;
405 switch (condition) {
406 case TCG_COND_EQ:
407 result = (u0 == u1);
408 break;
409 case TCG_COND_NE:
410 result = (u0 != u1);
411 break;
412 case TCG_COND_LT:
413 result = (i0 < i1);
414 break;
415 case TCG_COND_GE:
416 result = (i0 >= i1);
417 break;
418 case TCG_COND_LE:
419 result = (i0 <= i1);
420 break;
421 case TCG_COND_GT:
422 result = (i0 > i1);
423 break;
424 case TCG_COND_LTU:
425 result = (u0 < u1);
426 break;
427 case TCG_COND_GEU:
428 result = (u0 >= u1);
429 break;
430 case TCG_COND_LEU:
431 result = (u0 <= u1);
432 break;
433 case TCG_COND_GTU:
434 result = (u0 > u1);
435 break;
436 default:
437 TODO();
438 }
439 return result;
440 }
441
442 /* Interpret pseudo code in tb. */
443 tcg_target_ulong tcg_qemu_tb_exec(CPUArchState *cpustate, uint8_t *tb_ptr)
444 {
445 tcg_target_ulong next_tb = 0;
446
447 env = cpustate;
448 tci_reg[TCG_AREG0] = (tcg_target_ulong)env;
449 assert(tb_ptr);
450
451 for (;;) {
452 #if defined(GETPC)
453 tci_tb_ptr = tb_ptr;
454 #endif
455 TCGOpcode opc = tb_ptr[0];
456 #if !defined(NDEBUG)
457 uint8_t op_size = tb_ptr[1];
458 uint8_t *old_code_ptr = tb_ptr;
459 #endif
460 tcg_target_ulong t0;
461 tcg_target_ulong t1;
462 tcg_target_ulong t2;
463 tcg_target_ulong label;
464 TCGCond condition;
465 target_ulong taddr;
466 #ifndef CONFIG_SOFTMMU
467 tcg_target_ulong host_addr;
468 #endif
469 uint8_t tmp8;
470 uint16_t tmp16;
471 uint32_t tmp32;
472 uint64_t tmp64;
473 #if TCG_TARGET_REG_BITS == 32
474 uint64_t v64;
475 #endif
476
477 /* Skip opcode and size entry. */
478 tb_ptr += 2;
479
480 switch (opc) {
481 case INDEX_op_end:
482 case INDEX_op_nop:
483 break;
484 case INDEX_op_nop1:
485 case INDEX_op_nop2:
486 case INDEX_op_nop3:
487 case INDEX_op_nopn:
488 case INDEX_op_discard:
489 TODO();
490 break;
491 case INDEX_op_set_label:
492 TODO();
493 break;
494 case INDEX_op_call:
495 t0 = tci_read_ri(&tb_ptr);
496 #if TCG_TARGET_REG_BITS == 32
497 tmp64 = ((helper_function)t0)(tci_read_reg(TCG_REG_R0),
498 tci_read_reg(TCG_REG_R1),
499 tci_read_reg(TCG_REG_R2),
500 tci_read_reg(TCG_REG_R3),
501 tci_read_reg(TCG_REG_R5),
502 tci_read_reg(TCG_REG_R6),
503 tci_read_reg(TCG_REG_R7),
504 tci_read_reg(TCG_REG_R8));
505 tci_write_reg(TCG_REG_R0, tmp64);
506 tci_write_reg(TCG_REG_R1, tmp64 >> 32);
507 #else
508 tmp64 = ((helper_function)t0)(tci_read_reg(TCG_REG_R0),
509 tci_read_reg(TCG_REG_R1),
510 tci_read_reg(TCG_REG_R2),
511 tci_read_reg(TCG_REG_R3));
512 tci_write_reg(TCG_REG_R0, tmp64);
513 #endif
514 break;
515 case INDEX_op_jmp:
516 case INDEX_op_br:
517 label = tci_read_label(&tb_ptr);
518 assert(tb_ptr == old_code_ptr + op_size);
519 tb_ptr = (uint8_t *)label;
520 continue;
521 case INDEX_op_setcond_i32:
522 t0 = *tb_ptr++;
523 t1 = tci_read_r32(&tb_ptr);
524 t2 = tci_read_ri32(&tb_ptr);
525 condition = *tb_ptr++;
526 tci_write_reg32(t0, tci_compare32(t1, t2, condition));
527 break;
528 #if TCG_TARGET_REG_BITS == 32
529 case INDEX_op_setcond2_i32:
530 t0 = *tb_ptr++;
531 tmp64 = tci_read_r64(&tb_ptr);
532 v64 = tci_read_ri64(&tb_ptr);
533 condition = *tb_ptr++;
534 tci_write_reg32(t0, tci_compare64(tmp64, v64, condition));
535 break;
536 #elif TCG_TARGET_REG_BITS == 64
537 case INDEX_op_setcond_i64:
538 t0 = *tb_ptr++;
539 t1 = tci_read_r64(&tb_ptr);
540 t2 = tci_read_ri64(&tb_ptr);
541 condition = *tb_ptr++;
542 tci_write_reg64(t0, tci_compare64(t1, t2, condition));
543 break;
544 #endif
545 case INDEX_op_mov_i32:
546 t0 = *tb_ptr++;
547 t1 = tci_read_r32(&tb_ptr);
548 tci_write_reg32(t0, t1);
549 break;
550 case INDEX_op_movi_i32:
551 t0 = *tb_ptr++;
552 t1 = tci_read_i32(&tb_ptr);
553 tci_write_reg32(t0, t1);
554 break;
555
556 /* Load/store operations (32 bit). */
557
558 case INDEX_op_ld8u_i32:
559 t0 = *tb_ptr++;
560 t1 = tci_read_r(&tb_ptr);
561 t2 = tci_read_i32(&tb_ptr);
562 tci_write_reg8(t0, *(uint8_t *)(t1 + t2));
563 break;
564 case INDEX_op_ld8s_i32:
565 case INDEX_op_ld16u_i32:
566 TODO();
567 break;
568 case INDEX_op_ld16s_i32:
569 TODO();
570 break;
571 case INDEX_op_ld_i32:
572 t0 = *tb_ptr++;
573 t1 = tci_read_r(&tb_ptr);
574 t2 = tci_read_i32(&tb_ptr);
575 tci_write_reg32(t0, *(uint32_t *)(t1 + t2));
576 break;
577 case INDEX_op_st8_i32:
578 t0 = tci_read_r8(&tb_ptr);
579 t1 = tci_read_r(&tb_ptr);
580 t2 = tci_read_i32(&tb_ptr);
581 *(uint8_t *)(t1 + t2) = t0;
582 break;
583 case INDEX_op_st16_i32:
584 t0 = tci_read_r16(&tb_ptr);
585 t1 = tci_read_r(&tb_ptr);
586 t2 = tci_read_i32(&tb_ptr);
587 *(uint16_t *)(t1 + t2) = t0;
588 break;
589 case INDEX_op_st_i32:
590 t0 = tci_read_r32(&tb_ptr);
591 t1 = tci_read_r(&tb_ptr);
592 t2 = tci_read_i32(&tb_ptr);
593 *(uint32_t *)(t1 + t2) = t0;
594 break;
595
596 /* Arithmetic operations (32 bit). */
597
598 case INDEX_op_add_i32:
599 t0 = *tb_ptr++;
600 t1 = tci_read_ri32(&tb_ptr);
601 t2 = tci_read_ri32(&tb_ptr);
602 tci_write_reg32(t0, t1 + t2);
603 break;
604 case INDEX_op_sub_i32:
605 t0 = *tb_ptr++;
606 t1 = tci_read_ri32(&tb_ptr);
607 t2 = tci_read_ri32(&tb_ptr);
608 tci_write_reg32(t0, t1 - t2);
609 break;
610 case INDEX_op_mul_i32:
611 t0 = *tb_ptr++;
612 t1 = tci_read_ri32(&tb_ptr);
613 t2 = tci_read_ri32(&tb_ptr);
614 tci_write_reg32(t0, t1 * t2);
615 break;
616 #if TCG_TARGET_HAS_div_i32
617 case INDEX_op_div_i32:
618 t0 = *tb_ptr++;
619 t1 = tci_read_ri32(&tb_ptr);
620 t2 = tci_read_ri32(&tb_ptr);
621 tci_write_reg32(t0, (int32_t)t1 / (int32_t)t2);
622 break;
623 case INDEX_op_divu_i32:
624 t0 = *tb_ptr++;
625 t1 = tci_read_ri32(&tb_ptr);
626 t2 = tci_read_ri32(&tb_ptr);
627 tci_write_reg32(t0, t1 / t2);
628 break;
629 case INDEX_op_rem_i32:
630 t0 = *tb_ptr++;
631 t1 = tci_read_ri32(&tb_ptr);
632 t2 = tci_read_ri32(&tb_ptr);
633 tci_write_reg32(t0, (int32_t)t1 % (int32_t)t2);
634 break;
635 case INDEX_op_remu_i32:
636 t0 = *tb_ptr++;
637 t1 = tci_read_ri32(&tb_ptr);
638 t2 = tci_read_ri32(&tb_ptr);
639 tci_write_reg32(t0, t1 % t2);
640 break;
641 #elif TCG_TARGET_HAS_div2_i32
642 case INDEX_op_div2_i32:
643 case INDEX_op_divu2_i32:
644 TODO();
645 break;
646 #endif
647 case INDEX_op_and_i32:
648 t0 = *tb_ptr++;
649 t1 = tci_read_ri32(&tb_ptr);
650 t2 = tci_read_ri32(&tb_ptr);
651 tci_write_reg32(t0, t1 & t2);
652 break;
653 case INDEX_op_or_i32:
654 t0 = *tb_ptr++;
655 t1 = tci_read_ri32(&tb_ptr);
656 t2 = tci_read_ri32(&tb_ptr);
657 tci_write_reg32(t0, t1 | t2);
658 break;
659 case INDEX_op_xor_i32:
660 t0 = *tb_ptr++;
661 t1 = tci_read_ri32(&tb_ptr);
662 t2 = tci_read_ri32(&tb_ptr);
663 tci_write_reg32(t0, t1 ^ t2);
664 break;
665
666 /* Shift/rotate operations (32 bit). */
667
668 case INDEX_op_shl_i32:
669 t0 = *tb_ptr++;
670 t1 = tci_read_ri32(&tb_ptr);
671 t2 = tci_read_ri32(&tb_ptr);
672 tci_write_reg32(t0, t1 << t2);
673 break;
674 case INDEX_op_shr_i32:
675 t0 = *tb_ptr++;
676 t1 = tci_read_ri32(&tb_ptr);
677 t2 = tci_read_ri32(&tb_ptr);
678 tci_write_reg32(t0, t1 >> t2);
679 break;
680 case INDEX_op_sar_i32:
681 t0 = *tb_ptr++;
682 t1 = tci_read_ri32(&tb_ptr);
683 t2 = tci_read_ri32(&tb_ptr);
684 tci_write_reg32(t0, ((int32_t)t1 >> t2));
685 break;
686 #if TCG_TARGET_HAS_rot_i32
687 case INDEX_op_rotl_i32:
688 t0 = *tb_ptr++;
689 t1 = tci_read_ri32(&tb_ptr);
690 t2 = tci_read_ri32(&tb_ptr);
691 tci_write_reg32(t0, (t1 << t2) | (t1 >> (32 - t2)));
692 break;
693 case INDEX_op_rotr_i32:
694 t0 = *tb_ptr++;
695 t1 = tci_read_ri32(&tb_ptr);
696 t2 = tci_read_ri32(&tb_ptr);
697 tci_write_reg32(t0, (t1 >> t2) | (t1 << (32 - t2)));
698 break;
699 #endif
700 case INDEX_op_brcond_i32:
701 t0 = tci_read_r32(&tb_ptr);
702 t1 = tci_read_ri32(&tb_ptr);
703 condition = *tb_ptr++;
704 label = tci_read_label(&tb_ptr);
705 if (tci_compare32(t0, t1, condition)) {
706 assert(tb_ptr == old_code_ptr + op_size);
707 tb_ptr = (uint8_t *)label;
708 continue;
709 }
710 break;
711 #if TCG_TARGET_REG_BITS == 32
712 case INDEX_op_add2_i32:
713 t0 = *tb_ptr++;
714 t1 = *tb_ptr++;
715 tmp64 = tci_read_r64(&tb_ptr);
716 tmp64 += tci_read_r64(&tb_ptr);
717 tci_write_reg64(t1, t0, tmp64);
718 break;
719 case INDEX_op_sub2_i32:
720 t0 = *tb_ptr++;
721 t1 = *tb_ptr++;
722 tmp64 = tci_read_r64(&tb_ptr);
723 tmp64 -= tci_read_r64(&tb_ptr);
724 tci_write_reg64(t1, t0, tmp64);
725 break;
726 case INDEX_op_brcond2_i32:
727 tmp64 = tci_read_r64(&tb_ptr);
728 v64 = tci_read_ri64(&tb_ptr);
729 condition = *tb_ptr++;
730 label = tci_read_label(&tb_ptr);
731 if (tci_compare64(tmp64, v64, condition)) {
732 assert(tb_ptr == old_code_ptr + op_size);
733 tb_ptr = (uint8_t *)label;
734 continue;
735 }
736 break;
737 case INDEX_op_mulu2_i32:
738 t0 = *tb_ptr++;
739 t1 = *tb_ptr++;
740 t2 = tci_read_r32(&tb_ptr);
741 tmp64 = tci_read_r32(&tb_ptr);
742 tci_write_reg64(t1, t0, t2 * tmp64);
743 break;
744 #endif /* TCG_TARGET_REG_BITS == 32 */
745 #if TCG_TARGET_HAS_ext8s_i32
746 case INDEX_op_ext8s_i32:
747 t0 = *tb_ptr++;
748 t1 = tci_read_r8s(&tb_ptr);
749 tci_write_reg32(t0, t1);
750 break;
751 #endif
752 #if TCG_TARGET_HAS_ext16s_i32
753 case INDEX_op_ext16s_i32:
754 t0 = *tb_ptr++;
755 t1 = tci_read_r16s(&tb_ptr);
756 tci_write_reg32(t0, t1);
757 break;
758 #endif
759 #if TCG_TARGET_HAS_ext8u_i32
760 case INDEX_op_ext8u_i32:
761 t0 = *tb_ptr++;
762 t1 = tci_read_r8(&tb_ptr);
763 tci_write_reg32(t0, t1);
764 break;
765 #endif
766 #if TCG_TARGET_HAS_ext16u_i32
767 case INDEX_op_ext16u_i32:
768 t0 = *tb_ptr++;
769 t1 = tci_read_r16(&tb_ptr);
770 tci_write_reg32(t0, t1);
771 break;
772 #endif
773 #if TCG_TARGET_HAS_bswap16_i32
774 case INDEX_op_bswap16_i32:
775 t0 = *tb_ptr++;
776 t1 = tci_read_r16(&tb_ptr);
777 tci_write_reg32(t0, bswap16(t1));
778 break;
779 #endif
780 #if TCG_TARGET_HAS_bswap32_i32
781 case INDEX_op_bswap32_i32:
782 t0 = *tb_ptr++;
783 t1 = tci_read_r32(&tb_ptr);
784 tci_write_reg32(t0, bswap32(t1));
785 break;
786 #endif
787 #if TCG_TARGET_HAS_not_i32
788 case INDEX_op_not_i32:
789 t0 = *tb_ptr++;
790 t1 = tci_read_r32(&tb_ptr);
791 tci_write_reg32(t0, ~t1);
792 break;
793 #endif
794 #if TCG_TARGET_HAS_neg_i32
795 case INDEX_op_neg_i32:
796 t0 = *tb_ptr++;
797 t1 = tci_read_r32(&tb_ptr);
798 tci_write_reg32(t0, -t1);
799 break;
800 #endif
801 #if TCG_TARGET_REG_BITS == 64
802 case INDEX_op_mov_i64:
803 t0 = *tb_ptr++;
804 t1 = tci_read_r64(&tb_ptr);
805 tci_write_reg64(t0, t1);
806 break;
807 case INDEX_op_movi_i64:
808 t0 = *tb_ptr++;
809 t1 = tci_read_i64(&tb_ptr);
810 tci_write_reg64(t0, t1);
811 break;
812
813 /* Load/store operations (64 bit). */
814
815 case INDEX_op_ld8u_i64:
816 t0 = *tb_ptr++;
817 t1 = tci_read_r(&tb_ptr);
818 t2 = tci_read_i32(&tb_ptr);
819 tci_write_reg8(t0, *(uint8_t *)(t1 + t2));
820 break;
821 case INDEX_op_ld8s_i64:
822 case INDEX_op_ld16u_i64:
823 case INDEX_op_ld16s_i64:
824 TODO();
825 break;
826 case INDEX_op_ld32u_i64:
827 t0 = *tb_ptr++;
828 t1 = tci_read_r(&tb_ptr);
829 t2 = tci_read_i32(&tb_ptr);
830 tci_write_reg32(t0, *(uint32_t *)(t1 + t2));
831 break;
832 case INDEX_op_ld32s_i64:
833 t0 = *tb_ptr++;
834 t1 = tci_read_r(&tb_ptr);
835 t2 = tci_read_i32(&tb_ptr);
836 tci_write_reg32s(t0, *(int32_t *)(t1 + t2));
837 break;
838 case INDEX_op_ld_i64:
839 t0 = *tb_ptr++;
840 t1 = tci_read_r(&tb_ptr);
841 t2 = tci_read_i32(&tb_ptr);
842 tci_write_reg64(t0, *(uint64_t *)(t1 + t2));
843 break;
844 case INDEX_op_st8_i64:
845 t0 = tci_read_r8(&tb_ptr);
846 t1 = tci_read_r(&tb_ptr);
847 t2 = tci_read_i32(&tb_ptr);
848 *(uint8_t *)(t1 + t2) = t0;
849 break;
850 case INDEX_op_st16_i64:
851 t0 = tci_read_r16(&tb_ptr);
852 t1 = tci_read_r(&tb_ptr);
853 t2 = tci_read_i32(&tb_ptr);
854 *(uint16_t *)(t1 + t2) = t0;
855 break;
856 case INDEX_op_st32_i64:
857 t0 = tci_read_r32(&tb_ptr);
858 t1 = tci_read_r(&tb_ptr);
859 t2 = tci_read_i32(&tb_ptr);
860 *(uint32_t *)(t1 + t2) = t0;
861 break;
862 case INDEX_op_st_i64:
863 t0 = tci_read_r64(&tb_ptr);
864 t1 = tci_read_r(&tb_ptr);
865 t2 = tci_read_i32(&tb_ptr);
866 *(uint64_t *)(t1 + t2) = t0;
867 break;
868
869 /* Arithmetic operations (64 bit). */
870
871 case INDEX_op_add_i64:
872 t0 = *tb_ptr++;
873 t1 = tci_read_ri64(&tb_ptr);
874 t2 = tci_read_ri64(&tb_ptr);
875 tci_write_reg64(t0, t1 + t2);
876 break;
877 case INDEX_op_sub_i64:
878 t0 = *tb_ptr++;
879 t1 = tci_read_ri64(&tb_ptr);
880 t2 = tci_read_ri64(&tb_ptr);
881 tci_write_reg64(t0, t1 - t2);
882 break;
883 case INDEX_op_mul_i64:
884 t0 = *tb_ptr++;
885 t1 = tci_read_ri64(&tb_ptr);
886 t2 = tci_read_ri64(&tb_ptr);
887 tci_write_reg64(t0, t1 * t2);
888 break;
889 #if TCG_TARGET_HAS_div_i64
890 case INDEX_op_div_i64:
891 case INDEX_op_divu_i64:
892 case INDEX_op_rem_i64:
893 case INDEX_op_remu_i64:
894 TODO();
895 break;
896 #elif TCG_TARGET_HAS_div2_i64
897 case INDEX_op_div2_i64:
898 case INDEX_op_divu2_i64:
899 TODO();
900 break;
901 #endif
902 case INDEX_op_and_i64:
903 t0 = *tb_ptr++;
904 t1 = tci_read_ri64(&tb_ptr);
905 t2 = tci_read_ri64(&tb_ptr);
906 tci_write_reg64(t0, t1 & t2);
907 break;
908 case INDEX_op_or_i64:
909 t0 = *tb_ptr++;
910 t1 = tci_read_ri64(&tb_ptr);
911 t2 = tci_read_ri64(&tb_ptr);
912 tci_write_reg64(t0, t1 | t2);
913 break;
914 case INDEX_op_xor_i64:
915 t0 = *tb_ptr++;
916 t1 = tci_read_ri64(&tb_ptr);
917 t2 = tci_read_ri64(&tb_ptr);
918 tci_write_reg64(t0, t1 ^ t2);
919 break;
920
921 /* Shift/rotate operations (64 bit). */
922
923 case INDEX_op_shl_i64:
924 t0 = *tb_ptr++;
925 t1 = tci_read_ri64(&tb_ptr);
926 t2 = tci_read_ri64(&tb_ptr);
927 tci_write_reg64(t0, t1 << t2);
928 break;
929 case INDEX_op_shr_i64:
930 t0 = *tb_ptr++;
931 t1 = tci_read_ri64(&tb_ptr);
932 t2 = tci_read_ri64(&tb_ptr);
933 tci_write_reg64(t0, t1 >> t2);
934 break;
935 case INDEX_op_sar_i64:
936 t0 = *tb_ptr++;
937 t1 = tci_read_ri64(&tb_ptr);
938 t2 = tci_read_ri64(&tb_ptr);
939 tci_write_reg64(t0, ((int64_t)t1 >> t2));
940 break;
941 #if TCG_TARGET_HAS_rot_i64
942 case INDEX_op_rotl_i64:
943 case INDEX_op_rotr_i64:
944 TODO();
945 break;
946 #endif
947 case INDEX_op_brcond_i64:
948 t0 = tci_read_r64(&tb_ptr);
949 t1 = tci_read_ri64(&tb_ptr);
950 condition = *tb_ptr++;
951 label = tci_read_label(&tb_ptr);
952 if (tci_compare64(t0, t1, condition)) {
953 assert(tb_ptr == old_code_ptr + op_size);
954 tb_ptr = (uint8_t *)label;
955 continue;
956 }
957 break;
958 #if TCG_TARGET_HAS_ext8u_i64
959 case INDEX_op_ext8u_i64:
960 t0 = *tb_ptr++;
961 t1 = tci_read_r8(&tb_ptr);
962 tci_write_reg64(t0, t1);
963 break;
964 #endif
965 #if TCG_TARGET_HAS_ext8s_i64
966 case INDEX_op_ext8s_i64:
967 t0 = *tb_ptr++;
968 t1 = tci_read_r8s(&tb_ptr);
969 tci_write_reg64(t0, t1);
970 break;
971 #endif
972 #if TCG_TARGET_HAS_ext16s_i64
973 case INDEX_op_ext16s_i64:
974 t0 = *tb_ptr++;
975 t1 = tci_read_r16s(&tb_ptr);
976 tci_write_reg64(t0, t1);
977 break;
978 #endif
979 #if TCG_TARGET_HAS_ext16u_i64
980 case INDEX_op_ext16u_i64:
981 t0 = *tb_ptr++;
982 t1 = tci_read_r16(&tb_ptr);
983 tci_write_reg64(t0, t1);
984 break;
985 #endif
986 #if TCG_TARGET_HAS_ext32s_i64
987 case INDEX_op_ext32s_i64:
988 t0 = *tb_ptr++;
989 t1 = tci_read_r32s(&tb_ptr);
990 tci_write_reg64(t0, t1);
991 break;
992 #endif
993 #if TCG_TARGET_HAS_ext32u_i64
994 case INDEX_op_ext32u_i64:
995 t0 = *tb_ptr++;
996 t1 = tci_read_r32(&tb_ptr);
997 tci_write_reg64(t0, t1);
998 break;
999 #endif
1000 #if TCG_TARGET_HAS_bswap16_i64
1001 case INDEX_op_bswap16_i64:
1002 TODO();
1003 t0 = *tb_ptr++;
1004 t1 = tci_read_r16(&tb_ptr);
1005 tci_write_reg64(t0, bswap16(t1));
1006 break;
1007 #endif
1008 #if TCG_TARGET_HAS_bswap32_i64
1009 case INDEX_op_bswap32_i64:
1010 t0 = *tb_ptr++;
1011 t1 = tci_read_r32(&tb_ptr);
1012 tci_write_reg64(t0, bswap32(t1));
1013 break;
1014 #endif
1015 #if TCG_TARGET_HAS_bswap64_i64
1016 case INDEX_op_bswap64_i64:
1017 TODO();
1018 t0 = *tb_ptr++;
1019 t1 = tci_read_r64(&tb_ptr);
1020 tci_write_reg64(t0, bswap64(t1));
1021 break;
1022 #endif
1023 #if TCG_TARGET_HAS_not_i64
1024 case INDEX_op_not_i64:
1025 t0 = *tb_ptr++;
1026 t1 = tci_read_r64(&tb_ptr);
1027 tci_write_reg64(t0, ~t1);
1028 break;
1029 #endif
1030 #if TCG_TARGET_HAS_neg_i64
1031 case INDEX_op_neg_i64:
1032 t0 = *tb_ptr++;
1033 t1 = tci_read_r64(&tb_ptr);
1034 tci_write_reg64(t0, -t1);
1035 break;
1036 #endif
1037 #endif /* TCG_TARGET_REG_BITS == 64 */
1038
1039 /* QEMU specific operations. */
1040
1041 #if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
1042 case INDEX_op_debug_insn_start:
1043 TODO();
1044 break;
1045 #else
1046 case INDEX_op_debug_insn_start:
1047 TODO();
1048 break;
1049 #endif
1050 case INDEX_op_exit_tb:
1051 next_tb = *(uint64_t *)tb_ptr;
1052 goto exit;
1053 break;
1054 case INDEX_op_goto_tb:
1055 t0 = tci_read_i32(&tb_ptr);
1056 assert(tb_ptr == old_code_ptr + op_size);
1057 tb_ptr += (int32_t)t0;
1058 continue;
1059 case INDEX_op_qemu_ld8u:
1060 t0 = *tb_ptr++;
1061 taddr = tci_read_ulong(&tb_ptr);
1062 #ifdef CONFIG_SOFTMMU
1063 tmp8 = helper_ldb_mmu(env, taddr, tci_read_i(&tb_ptr));
1064 #else
1065 host_addr = (tcg_target_ulong)taddr;
1066 assert(taddr == host_addr);
1067 tmp8 = *(uint8_t *)(host_addr + GUEST_BASE);
1068 #endif
1069 tci_write_reg8(t0, tmp8);
1070 break;
1071 case INDEX_op_qemu_ld8s:
1072 t0 = *tb_ptr++;
1073 taddr = tci_read_ulong(&tb_ptr);
1074 #ifdef CONFIG_SOFTMMU
1075 tmp8 = helper_ldb_mmu(env, taddr, tci_read_i(&tb_ptr));
1076 #else
1077 host_addr = (tcg_target_ulong)taddr;
1078 assert(taddr == host_addr);
1079 tmp8 = *(uint8_t *)(host_addr + GUEST_BASE);
1080 #endif
1081 tci_write_reg8s(t0, tmp8);
1082 break;
1083 case INDEX_op_qemu_ld16u:
1084 t0 = *tb_ptr++;
1085 taddr = tci_read_ulong(&tb_ptr);
1086 #ifdef CONFIG_SOFTMMU
1087 tmp16 = helper_ldw_mmu(env, taddr, tci_read_i(&tb_ptr));
1088 #else
1089 host_addr = (tcg_target_ulong)taddr;
1090 assert(taddr == host_addr);
1091 tmp16 = tswap16(*(uint16_t *)(host_addr + GUEST_BASE));
1092 #endif
1093 tci_write_reg16(t0, tmp16);
1094 break;
1095 case INDEX_op_qemu_ld16s:
1096 t0 = *tb_ptr++;
1097 taddr = tci_read_ulong(&tb_ptr);
1098 #ifdef CONFIG_SOFTMMU
1099 tmp16 = helper_ldw_mmu(env, taddr, tci_read_i(&tb_ptr));
1100 #else
1101 host_addr = (tcg_target_ulong)taddr;
1102 assert(taddr == host_addr);
1103 tmp16 = tswap16(*(uint16_t *)(host_addr + GUEST_BASE));
1104 #endif
1105 tci_write_reg16s(t0, tmp16);
1106 break;
1107 #if TCG_TARGET_REG_BITS == 64
1108 case INDEX_op_qemu_ld32u:
1109 t0 = *tb_ptr++;
1110 taddr = tci_read_ulong(&tb_ptr);
1111 #ifdef CONFIG_SOFTMMU
1112 tmp32 = helper_ldl_mmu(env, taddr, tci_read_i(&tb_ptr));
1113 #else
1114 host_addr = (tcg_target_ulong)taddr;
1115 assert(taddr == host_addr);
1116 tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));
1117 #endif
1118 tci_write_reg32(t0, tmp32);
1119 break;
1120 case INDEX_op_qemu_ld32s:
1121 t0 = *tb_ptr++;
1122 taddr = tci_read_ulong(&tb_ptr);
1123 #ifdef CONFIG_SOFTMMU
1124 tmp32 = helper_ldl_mmu(env, taddr, tci_read_i(&tb_ptr));
1125 #else
1126 host_addr = (tcg_target_ulong)taddr;
1127 assert(taddr == host_addr);
1128 tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));
1129 #endif
1130 tci_write_reg32s(t0, tmp32);
1131 break;
1132 #endif /* TCG_TARGET_REG_BITS == 64 */
1133 case INDEX_op_qemu_ld32:
1134 t0 = *tb_ptr++;
1135 taddr = tci_read_ulong(&tb_ptr);
1136 #ifdef CONFIG_SOFTMMU
1137 tmp32 = helper_ldl_mmu(env, taddr, tci_read_i(&tb_ptr));
1138 #else
1139 host_addr = (tcg_target_ulong)taddr;
1140 assert(taddr == host_addr);
1141 tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));
1142 #endif
1143 tci_write_reg32(t0, tmp32);
1144 break;
1145 case INDEX_op_qemu_ld64:
1146 t0 = *tb_ptr++;
1147 #if TCG_TARGET_REG_BITS == 32
1148 t1 = *tb_ptr++;
1149 #endif
1150 taddr = tci_read_ulong(&tb_ptr);
1151 #ifdef CONFIG_SOFTMMU
1152 tmp64 = helper_ldq_mmu(env, taddr, tci_read_i(&tb_ptr));
1153 #else
1154 host_addr = (tcg_target_ulong)taddr;
1155 assert(taddr == host_addr);
1156 tmp64 = tswap64(*(uint64_t *)(host_addr + GUEST_BASE));
1157 #endif
1158 tci_write_reg(t0, tmp64);
1159 #if TCG_TARGET_REG_BITS == 32
1160 tci_write_reg(t1, tmp64 >> 32);
1161 #endif
1162 break;
1163 case INDEX_op_qemu_st8:
1164 t0 = tci_read_r8(&tb_ptr);
1165 taddr = tci_read_ulong(&tb_ptr);
1166 #ifdef CONFIG_SOFTMMU
1167 t2 = tci_read_i(&tb_ptr);
1168 helper_stb_mmu(env, taddr, t0, t2);
1169 #else
1170 host_addr = (tcg_target_ulong)taddr;
1171 assert(taddr == host_addr);
1172 *(uint8_t *)(host_addr + GUEST_BASE) = t0;
1173 #endif
1174 break;
1175 case INDEX_op_qemu_st16:
1176 t0 = tci_read_r16(&tb_ptr);
1177 taddr = tci_read_ulong(&tb_ptr);
1178 #ifdef CONFIG_SOFTMMU
1179 t2 = tci_read_i(&tb_ptr);
1180 helper_stw_mmu(env, taddr, t0, t2);
1181 #else
1182 host_addr = (tcg_target_ulong)taddr;
1183 assert(taddr == host_addr);
1184 *(uint16_t *)(host_addr + GUEST_BASE) = tswap16(t0);
1185 #endif
1186 break;
1187 case INDEX_op_qemu_st32:
1188 t0 = tci_read_r32(&tb_ptr);
1189 taddr = tci_read_ulong(&tb_ptr);
1190 #ifdef CONFIG_SOFTMMU
1191 t2 = tci_read_i(&tb_ptr);
1192 helper_stl_mmu(env, taddr, t0, t2);
1193 #else
1194 host_addr = (tcg_target_ulong)taddr;
1195 assert(taddr == host_addr);
1196 *(uint32_t *)(host_addr + GUEST_BASE) = tswap32(t0);
1197 #endif
1198 break;
1199 case INDEX_op_qemu_st64:
1200 tmp64 = tci_read_r64(&tb_ptr);
1201 taddr = tci_read_ulong(&tb_ptr);
1202 #ifdef CONFIG_SOFTMMU
1203 t2 = tci_read_i(&tb_ptr);
1204 helper_stq_mmu(env, taddr, tmp64, t2);
1205 #else
1206 host_addr = (tcg_target_ulong)taddr;
1207 assert(taddr == host_addr);
1208 *(uint64_t *)(host_addr + GUEST_BASE) = tswap64(tmp64);
1209 #endif
1210 break;
1211 default:
1212 TODO();
1213 break;
1214 }
1215 assert(tb_ptr == old_code_ptr + op_size);
1216 }
1217 exit:
1218 return next_tb;
1219 }
Ray Wang's QEMU Repository