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block: use public bdrv_is_allocated() interface
[qemu/ar7.git] / tci.c
bloba20a7142ed9e99d4096a89d5e8cbdf1b23a222de
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 CPUState *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 static tcg_target_ulong tci_read_reg(TCGReg index)
67 {
68 assert(index < ARRAY_SIZE(tci_reg));
69 return tci_reg[index];
70 }
71
72 #if TCG_TARGET_HAS_ext8s_i32 || TCG_TARGET_HAS_ext8s_i64
73 static int8_t tci_read_reg8s(TCGReg index)
74 {
75 return (int8_t)tci_read_reg(index);
76 }
77 #endif
78
79 #if TCG_TARGET_HAS_ext16s_i32 || TCG_TARGET_HAS_ext16s_i64
80 static int16_t tci_read_reg16s(TCGReg index)
81 {
82 return (int16_t)tci_read_reg(index);
83 }
84 #endif
85
86 #if TCG_TARGET_REG_BITS == 64
87 static int32_t tci_read_reg32s(TCGReg index)
88 {
89 return (int32_t)tci_read_reg(index);
90 }
91 #endif
92
93 static uint8_t tci_read_reg8(TCGReg index)
94 {
95 return (uint8_t)tci_read_reg(index);
96 }
97
98 static uint16_t tci_read_reg16(TCGReg index)
99 {
100 return (uint16_t)tci_read_reg(index);
101 }
102
103 static uint32_t tci_read_reg32(TCGReg index)
104 {
105 return (uint32_t)tci_read_reg(index);
106 }
107
108 #if TCG_TARGET_REG_BITS == 64
109 static uint64_t tci_read_reg64(TCGReg index)
110 {
111 return tci_read_reg(index);
112 }
113 #endif
114
115 static void tci_write_reg(TCGReg index, tcg_target_ulong value)
116 {
117 assert(index < ARRAY_SIZE(tci_reg));
118 assert(index != TCG_AREG0);
119 tci_reg[index] = value;
120 }
121
122 static void tci_write_reg8s(TCGReg index, int8_t value)
123 {
124 tci_write_reg(index, value);
125 }
126
127 static void tci_write_reg16s(TCGReg index, int16_t value)
128 {
129 tci_write_reg(index, value);
130 }
131
132 #if TCG_TARGET_REG_BITS == 64
133 static void tci_write_reg32s(TCGReg index, int32_t value)
134 {
135 tci_write_reg(index, value);
136 }
137 #endif
138
139 static void tci_write_reg8(TCGReg index, uint8_t value)
140 {
141 tci_write_reg(index, value);
142 }
143
144 static void tci_write_reg16(TCGReg index, uint16_t value)
145 {
146 tci_write_reg(index, value);
147 }
148
149 static void tci_write_reg32(TCGReg index, uint32_t value)
150 {
151 tci_write_reg(index, value);
152 }
153
154 #if TCG_TARGET_REG_BITS == 32
155 static void tci_write_reg64(uint32_t high_index, uint32_t low_index,
156 uint64_t value)
157 {
158 tci_write_reg(low_index, value);
159 tci_write_reg(high_index, value >> 32);
160 }
161 #elif TCG_TARGET_REG_BITS == 64
162 static void tci_write_reg64(TCGReg index, uint64_t value)
163 {
164 tci_write_reg(index, value);
165 }
166 #endif
167
168 #if TCG_TARGET_REG_BITS == 32
169 /* Create a 64 bit value from two 32 bit values. */
170 static uint64_t tci_uint64(uint32_t high, uint32_t low)
171 {
172 return ((uint64_t)high << 32) + low;
173 }
174 #endif
175
176 /* Read constant (native size) from bytecode. */
177 static tcg_target_ulong tci_read_i(uint8_t **tb_ptr)
178 {
179 tcg_target_ulong value = *(tcg_target_ulong *)(*tb_ptr);
180 *tb_ptr += sizeof(value);
181 return value;
182 }
183
184 /* Read constant (32 bit) from bytecode. */
185 static uint32_t tci_read_i32(uint8_t **tb_ptr)
186 {
187 uint32_t value = *(uint32_t *)(*tb_ptr);
188 *tb_ptr += sizeof(value);
189 return value;
190 }
191
192 #if TCG_TARGET_REG_BITS == 64
193 /* Read constant (64 bit) from bytecode. */
194 static uint64_t tci_read_i64(uint8_t **tb_ptr)
195 {
196 uint64_t value = *(uint64_t *)(*tb_ptr);
197 *tb_ptr += sizeof(value);
198 return value;
199 }
200 #endif
201
202 /* Read indexed register (native size) from bytecode. */
203 static tcg_target_ulong tci_read_r(uint8_t **tb_ptr)
204 {
205 tcg_target_ulong value = tci_read_reg(**tb_ptr);
206 *tb_ptr += 1;
207 return value;
208 }
209
210 /* Read indexed register (8 bit) from bytecode. */
211 static uint8_t tci_read_r8(uint8_t **tb_ptr)
212 {
213 uint8_t value = tci_read_reg8(**tb_ptr);
214 *tb_ptr += 1;
215 return value;
216 }
217
218 #if TCG_TARGET_HAS_ext8s_i32 || TCG_TARGET_HAS_ext8s_i64
219 /* Read indexed register (8 bit signed) from bytecode. */
220 static int8_t tci_read_r8s(uint8_t **tb_ptr)
221 {
222 int8_t value = tci_read_reg8s(**tb_ptr);
223 *tb_ptr += 1;
224 return value;
225 }
226 #endif
227
228 /* Read indexed register (16 bit) from bytecode. */
229 static uint16_t tci_read_r16(uint8_t **tb_ptr)
230 {
231 uint16_t value = tci_read_reg16(**tb_ptr);
232 *tb_ptr += 1;
233 return value;
234 }
235
236 #if TCG_TARGET_HAS_ext16s_i32 || TCG_TARGET_HAS_ext16s_i64
237 /* Read indexed register (16 bit signed) from bytecode. */
238 static int16_t tci_read_r16s(uint8_t **tb_ptr)
239 {
240 int16_t value = tci_read_reg16s(**tb_ptr);
241 *tb_ptr += 1;
242 return value;
243 }
244 #endif
245
246 /* Read indexed register (32 bit) from bytecode. */
247 static uint32_t tci_read_r32(uint8_t **tb_ptr)
248 {
249 uint32_t value = tci_read_reg32(**tb_ptr);
250 *tb_ptr += 1;
251 return value;
252 }
253
254 #if TCG_TARGET_REG_BITS == 32
255 /* Read two indexed registers (2 * 32 bit) from bytecode. */
256 static uint64_t tci_read_r64(uint8_t **tb_ptr)
257 {
258 uint32_t low = tci_read_r32(tb_ptr);
259 return tci_uint64(tci_read_r32(tb_ptr), low);
260 }
261 #elif TCG_TARGET_REG_BITS == 64
262 /* Read indexed register (32 bit signed) from bytecode. */
263 static int32_t tci_read_r32s(uint8_t **tb_ptr)
264 {
265 int32_t value = tci_read_reg32s(**tb_ptr);
266 *tb_ptr += 1;
267 return value;
268 }
269
270 /* Read indexed register (64 bit) from bytecode. */
271 static uint64_t tci_read_r64(uint8_t **tb_ptr)
272 {
273 uint64_t value = tci_read_reg64(**tb_ptr);
274 *tb_ptr += 1;
275 return value;
276 }
277 #endif
278
279 /* Read indexed register(s) with target address from bytecode. */
280 static target_ulong tci_read_ulong(uint8_t **tb_ptr)
281 {
282 target_ulong taddr = tci_read_r(tb_ptr);
283 #if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
284 taddr += (uint64_t)tci_read_r(tb_ptr) << 32;
285 #endif
286 return taddr;
287 }
288
289 /* Read indexed register or constant (native size) from bytecode. */
290 static tcg_target_ulong tci_read_ri(uint8_t **tb_ptr)
291 {
292 tcg_target_ulong value;
293 TCGReg r = **tb_ptr;
294 *tb_ptr += 1;
295 if (r == TCG_CONST) {
296 value = tci_read_i(tb_ptr);
297 } else {
298 value = tci_read_reg(r);
299 }
300 return value;
301 }
302
303 /* Read indexed register or constant (32 bit) from bytecode. */
304 static uint32_t tci_read_ri32(uint8_t **tb_ptr)
305 {
306 uint32_t value;
307 TCGReg r = **tb_ptr;
308 *tb_ptr += 1;
309 if (r == TCG_CONST) {
310 value = tci_read_i32(tb_ptr);
311 } else {
312 value = tci_read_reg32(r);
313 }
314 return value;
315 }
316
317 #if TCG_TARGET_REG_BITS == 32
318 /* Read two indexed registers or constants (2 * 32 bit) from bytecode. */
319 static uint64_t tci_read_ri64(uint8_t **tb_ptr)
320 {
321 uint32_t low = tci_read_ri32(tb_ptr);
322 return tci_uint64(tci_read_ri32(tb_ptr), low);
323 }
324 #elif TCG_TARGET_REG_BITS == 64
325 /* Read indexed register or constant (64 bit) from bytecode. */
326 static uint64_t tci_read_ri64(uint8_t **tb_ptr)
327 {
328 uint64_t value;
329 TCGReg r = **tb_ptr;
330 *tb_ptr += 1;
331 if (r == TCG_CONST) {
332 value = tci_read_i64(tb_ptr);
333 } else {
334 value = tci_read_reg64(r);
335 }
336 return value;
337 }
338 #endif
339
340 static target_ulong tci_read_label(uint8_t **tb_ptr)
341 {
342 target_ulong label = tci_read_i(tb_ptr);
343 assert(label != 0);
344 return label;
345 }
346
347 static bool tci_compare32(uint32_t u0, uint32_t u1, TCGCond condition)
348 {
349 bool result = false;
350 int32_t i0 = u0;
351 int32_t i1 = u1;
352 switch (condition) {
353 case TCG_COND_EQ:
354 result = (u0 == u1);
355 break;
356 case TCG_COND_NE:
357 result = (u0 != u1);
358 break;
359 case TCG_COND_LT:
360 result = (i0 < i1);
361 break;
362 case TCG_COND_GE:
363 result = (i0 >= i1);
364 break;
365 case TCG_COND_LE:
366 result = (i0 <= i1);
367 break;
368 case TCG_COND_GT:
369 result = (i0 > i1);
370 break;
371 case TCG_COND_LTU:
372 result = (u0 < u1);
373 break;
374 case TCG_COND_GEU:
375 result = (u0 >= u1);
376 break;
377 case TCG_COND_LEU:
378 result = (u0 <= u1);
379 break;
380 case TCG_COND_GTU:
381 result = (u0 > u1);
382 break;
383 default:
384 TODO();
385 }
386 return result;
387 }
388
389 static bool tci_compare64(uint64_t u0, uint64_t u1, TCGCond condition)
390 {
391 bool result = false;
392 int64_t i0 = u0;
393 int64_t i1 = u1;
394 switch (condition) {
395 case TCG_COND_EQ:
396 result = (u0 == u1);
397 break;
398 case TCG_COND_NE:
399 result = (u0 != u1);
400 break;
401 case TCG_COND_LT:
402 result = (i0 < i1);
403 break;
404 case TCG_COND_GE:
405 result = (i0 >= i1);
406 break;
407 case TCG_COND_LE:
408 result = (i0 <= i1);
409 break;
410 case TCG_COND_GT:
411 result = (i0 > i1);
412 break;
413 case TCG_COND_LTU:
414 result = (u0 < u1);
415 break;
416 case TCG_COND_GEU:
417 result = (u0 >= u1);
418 break;
419 case TCG_COND_LEU:
420 result = (u0 <= u1);
421 break;
422 case TCG_COND_GTU:
423 result = (u0 > u1);
424 break;
425 default:
426 TODO();
427 }
428 return result;
429 }
430
431 /* Interpret pseudo code in tb. */
432 unsigned long tcg_qemu_tb_exec(CPUState *cpustate, uint8_t *tb_ptr)
433 {
434 unsigned long next_tb = 0;
435
436 env = cpustate;
437 tci_reg[TCG_AREG0] = (tcg_target_ulong)env;
438 assert(tb_ptr);
439
440 for (;;) {
441 #if defined(GETPC)
442 tci_tb_ptr = tb_ptr;
443 #endif
444 TCGOpcode opc = tb_ptr[0];
445 #if !defined(NDEBUG)
446 uint8_t op_size = tb_ptr[1];
447 uint8_t *old_code_ptr = tb_ptr;
448 #endif
449 tcg_target_ulong t0;
450 tcg_target_ulong t1;
451 tcg_target_ulong t2;
452 tcg_target_ulong label;
453 TCGCond condition;
454 target_ulong taddr;
455 #ifndef CONFIG_SOFTMMU
456 tcg_target_ulong host_addr;
457 #endif
458 uint8_t tmp8;
459 uint16_t tmp16;
460 uint32_t tmp32;
461 uint64_t tmp64;
462 #if TCG_TARGET_REG_BITS == 32
463 uint64_t v64;
464 #endif
465
466 /* Skip opcode and size entry. */
467 tb_ptr += 2;
468
469 switch (opc) {
470 case INDEX_op_end:
471 case INDEX_op_nop:
472 break;
473 case INDEX_op_nop1:
474 case INDEX_op_nop2:
475 case INDEX_op_nop3:
476 case INDEX_op_nopn:
477 case INDEX_op_discard:
478 TODO();
479 break;
480 case INDEX_op_set_label:
481 TODO();
482 break;
483 case INDEX_op_call:
484 t0 = tci_read_ri(&tb_ptr);
485 #if TCG_TARGET_REG_BITS == 32
486 tmp64 = ((helper_function)t0)(tci_read_reg(TCG_REG_R0),
487 tci_read_reg(TCG_REG_R1),
488 tci_read_reg(TCG_REG_R2),
489 tci_read_reg(TCG_REG_R3),
490 tci_read_reg(TCG_REG_R5),
491 tci_read_reg(TCG_REG_R6),
492 tci_read_reg(TCG_REG_R7),
493 tci_read_reg(TCG_REG_R8));
494 tci_write_reg(TCG_REG_R0, tmp64);
495 tci_write_reg(TCG_REG_R1, tmp64 >> 32);
496 #else
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_write_reg(TCG_REG_R0, tmp64);
502 #endif
503 break;
504 case INDEX_op_jmp:
505 case INDEX_op_br:
506 label = tci_read_label(&tb_ptr);
507 assert(tb_ptr == old_code_ptr + op_size);
508 tb_ptr = (uint8_t *)label;
509 continue;
510 case INDEX_op_setcond_i32:
511 t0 = *tb_ptr++;
512 t1 = tci_read_r32(&tb_ptr);
513 t2 = tci_read_ri32(&tb_ptr);
514 condition = *tb_ptr++;
515 tci_write_reg32(t0, tci_compare32(t1, t2, condition));
516 break;
517 #if TCG_TARGET_REG_BITS == 32
518 case INDEX_op_setcond2_i32:
519 t0 = *tb_ptr++;
520 tmp64 = tci_read_r64(&tb_ptr);
521 v64 = tci_read_ri64(&tb_ptr);
522 condition = *tb_ptr++;
523 tci_write_reg32(t0, tci_compare64(tmp64, v64, condition));
524 break;
525 #elif TCG_TARGET_REG_BITS == 64
526 case INDEX_op_setcond_i64:
527 t0 = *tb_ptr++;
528 t1 = tci_read_r64(&tb_ptr);
529 t2 = tci_read_ri64(&tb_ptr);
530 condition = *tb_ptr++;
531 tci_write_reg64(t0, tci_compare64(t1, t2, condition));
532 break;
533 #endif
534 case INDEX_op_mov_i32:
535 t0 = *tb_ptr++;
536 t1 = tci_read_r32(&tb_ptr);
537 tci_write_reg32(t0, t1);
538 break;
539 case INDEX_op_movi_i32:
540 t0 = *tb_ptr++;
541 t1 = tci_read_i32(&tb_ptr);
542 tci_write_reg32(t0, t1);
543 break;
544
545 /* Load/store operations (32 bit). */
546
547 case INDEX_op_ld8u_i32:
548 t0 = *tb_ptr++;
549 t1 = tci_read_r(&tb_ptr);
550 t2 = tci_read_i32(&tb_ptr);
551 tci_write_reg8(t0, *(uint8_t *)(t1 + t2));
552 break;
553 case INDEX_op_ld8s_i32:
554 case INDEX_op_ld16u_i32:
555 TODO();
556 break;
557 case INDEX_op_ld16s_i32:
558 TODO();
559 break;
560 case INDEX_op_ld_i32:
561 t0 = *tb_ptr++;
562 t1 = tci_read_r(&tb_ptr);
563 t2 = tci_read_i32(&tb_ptr);
564 tci_write_reg32(t0, *(uint32_t *)(t1 + t2));
565 break;
566 case INDEX_op_st8_i32:
567 t0 = tci_read_r8(&tb_ptr);
568 t1 = tci_read_r(&tb_ptr);
569 t2 = tci_read_i32(&tb_ptr);
570 *(uint8_t *)(t1 + t2) = t0;
571 break;
572 case INDEX_op_st16_i32:
573 t0 = tci_read_r16(&tb_ptr);
574 t1 = tci_read_r(&tb_ptr);
575 t2 = tci_read_i32(&tb_ptr);
576 *(uint16_t *)(t1 + t2) = t0;
577 break;
578 case INDEX_op_st_i32:
579 t0 = tci_read_r32(&tb_ptr);
580 t1 = tci_read_r(&tb_ptr);
581 t2 = tci_read_i32(&tb_ptr);
582 *(uint32_t *)(t1 + t2) = t0;
583 break;
584
585 /* Arithmetic operations (32 bit). */
586
587 case INDEX_op_add_i32:
588 t0 = *tb_ptr++;
589 t1 = tci_read_ri32(&tb_ptr);
590 t2 = tci_read_ri32(&tb_ptr);
591 tci_write_reg32(t0, t1 + t2);
592 break;
593 case INDEX_op_sub_i32:
594 t0 = *tb_ptr++;
595 t1 = tci_read_ri32(&tb_ptr);
596 t2 = tci_read_ri32(&tb_ptr);
597 tci_write_reg32(t0, t1 - t2);
598 break;
599 case INDEX_op_mul_i32:
600 t0 = *tb_ptr++;
601 t1 = tci_read_ri32(&tb_ptr);
602 t2 = tci_read_ri32(&tb_ptr);
603 tci_write_reg32(t0, t1 * t2);
604 break;
605 #if TCG_TARGET_HAS_div_i32
606 case INDEX_op_div_i32:
607 t0 = *tb_ptr++;
608 t1 = tci_read_ri32(&tb_ptr);
609 t2 = tci_read_ri32(&tb_ptr);
610 tci_write_reg32(t0, (int32_t)t1 / (int32_t)t2);
611 break;
612 case INDEX_op_divu_i32:
613 t0 = *tb_ptr++;
614 t1 = tci_read_ri32(&tb_ptr);
615 t2 = tci_read_ri32(&tb_ptr);
616 tci_write_reg32(t0, t1 / t2);
617 break;
618 case INDEX_op_rem_i32:
619 t0 = *tb_ptr++;
620 t1 = tci_read_ri32(&tb_ptr);
621 t2 = tci_read_ri32(&tb_ptr);
622 tci_write_reg32(t0, (int32_t)t1 % (int32_t)t2);
623 break;
624 case INDEX_op_remu_i32:
625 t0 = *tb_ptr++;
626 t1 = tci_read_ri32(&tb_ptr);
627 t2 = tci_read_ri32(&tb_ptr);
628 tci_write_reg32(t0, t1 % t2);
629 break;
630 #elif TCG_TARGET_HAS_div2_i32
631 case INDEX_op_div2_i32:
632 case INDEX_op_divu2_i32:
633 TODO();
634 break;
635 #endif
636 case INDEX_op_and_i32:
637 t0 = *tb_ptr++;
638 t1 = tci_read_ri32(&tb_ptr);
639 t2 = tci_read_ri32(&tb_ptr);
640 tci_write_reg32(t0, t1 & t2);
641 break;
642 case INDEX_op_or_i32:
643 t0 = *tb_ptr++;
644 t1 = tci_read_ri32(&tb_ptr);
645 t2 = tci_read_ri32(&tb_ptr);
646 tci_write_reg32(t0, t1 | t2);
647 break;
648 case INDEX_op_xor_i32:
649 t0 = *tb_ptr++;
650 t1 = tci_read_ri32(&tb_ptr);
651 t2 = tci_read_ri32(&tb_ptr);
652 tci_write_reg32(t0, t1 ^ t2);
653 break;
654
655 /* Shift/rotate operations (32 bit). */
656
657 case INDEX_op_shl_i32:
658 t0 = *tb_ptr++;
659 t1 = tci_read_ri32(&tb_ptr);
660 t2 = tci_read_ri32(&tb_ptr);
661 tci_write_reg32(t0, t1 << t2);
662 break;
663 case INDEX_op_shr_i32:
664 t0 = *tb_ptr++;
665 t1 = tci_read_ri32(&tb_ptr);
666 t2 = tci_read_ri32(&tb_ptr);
667 tci_write_reg32(t0, t1 >> t2);
668 break;
669 case INDEX_op_sar_i32:
670 t0 = *tb_ptr++;
671 t1 = tci_read_ri32(&tb_ptr);
672 t2 = tci_read_ri32(&tb_ptr);
673 tci_write_reg32(t0, ((int32_t)t1 >> t2));
674 break;
675 #if TCG_TARGET_HAS_rot_i32
676 case INDEX_op_rotl_i32:
677 t0 = *tb_ptr++;
678 t1 = tci_read_ri32(&tb_ptr);
679 t2 = tci_read_ri32(&tb_ptr);
680 tci_write_reg32(t0, (t1 << t2) | (t1 >> (32 - t2)));
681 break;
682 case INDEX_op_rotr_i32:
683 t0 = *tb_ptr++;
684 t1 = tci_read_ri32(&tb_ptr);
685 t2 = tci_read_ri32(&tb_ptr);
686 tci_write_reg32(t0, (t1 >> t2) | (t1 << (32 - t2)));
687 break;
688 #endif
689 case INDEX_op_brcond_i32:
690 t0 = tci_read_r32(&tb_ptr);
691 t1 = tci_read_ri32(&tb_ptr);
692 condition = *tb_ptr++;
693 label = tci_read_label(&tb_ptr);
694 if (tci_compare32(t0, t1, condition)) {
695 assert(tb_ptr == old_code_ptr + op_size);
696 tb_ptr = (uint8_t *)label;
697 continue;
698 }
699 break;
700 #if TCG_TARGET_REG_BITS == 32
701 case INDEX_op_add2_i32:
702 t0 = *tb_ptr++;
703 t1 = *tb_ptr++;
704 tmp64 = tci_read_r64(&tb_ptr);
705 tmp64 += tci_read_r64(&tb_ptr);
706 tci_write_reg64(t1, t0, tmp64);
707 break;
708 case INDEX_op_sub2_i32:
709 t0 = *tb_ptr++;
710 t1 = *tb_ptr++;
711 tmp64 = tci_read_r64(&tb_ptr);
712 tmp64 -= tci_read_r64(&tb_ptr);
713 tci_write_reg64(t1, t0, tmp64);
714 break;
715 case INDEX_op_brcond2_i32:
716 tmp64 = tci_read_r64(&tb_ptr);
717 v64 = tci_read_ri64(&tb_ptr);
718 condition = *tb_ptr++;
719 label = tci_read_label(&tb_ptr);
720 if (tci_compare64(tmp64, v64, condition)) {
721 assert(tb_ptr == old_code_ptr + op_size);
722 tb_ptr = (uint8_t *)label;
723 continue;
724 }
725 break;
726 case INDEX_op_mulu2_i32:
727 t0 = *tb_ptr++;
728 t1 = *tb_ptr++;
729 t2 = tci_read_r32(&tb_ptr);
730 tmp64 = tci_read_r32(&tb_ptr);
731 tci_write_reg64(t1, t0, t2 * tmp64);
732 break;
733 #endif /* TCG_TARGET_REG_BITS == 32 */
734 #if TCG_TARGET_HAS_ext8s_i32
735 case INDEX_op_ext8s_i32:
736 t0 = *tb_ptr++;
737 t1 = tci_read_r8s(&tb_ptr);
738 tci_write_reg32(t0, t1);
739 break;
740 #endif
741 #if TCG_TARGET_HAS_ext16s_i32
742 case INDEX_op_ext16s_i32:
743 t0 = *tb_ptr++;
744 t1 = tci_read_r16s(&tb_ptr);
745 tci_write_reg32(t0, t1);
746 break;
747 #endif
748 #if TCG_TARGET_HAS_ext8u_i32
749 case INDEX_op_ext8u_i32:
750 t0 = *tb_ptr++;
751 t1 = tci_read_r8(&tb_ptr);
752 tci_write_reg32(t0, t1);
753 break;
754 #endif
755 #if TCG_TARGET_HAS_ext16u_i32
756 case INDEX_op_ext16u_i32:
757 t0 = *tb_ptr++;
758 t1 = tci_read_r16(&tb_ptr);
759 tci_write_reg32(t0, t1);
760 break;
761 #endif
762 #if TCG_TARGET_HAS_bswap16_i32
763 case INDEX_op_bswap16_i32:
764 t0 = *tb_ptr++;
765 t1 = tci_read_r16(&tb_ptr);
766 tci_write_reg32(t0, bswap16(t1));
767 break;
768 #endif
769 #if TCG_TARGET_HAS_bswap32_i32
770 case INDEX_op_bswap32_i32:
771 t0 = *tb_ptr++;
772 t1 = tci_read_r32(&tb_ptr);
773 tci_write_reg32(t0, bswap32(t1));
774 break;
775 #endif
776 #if TCG_TARGET_HAS_not_i32
777 case INDEX_op_not_i32:
778 t0 = *tb_ptr++;
779 t1 = tci_read_r32(&tb_ptr);
780 tci_write_reg32(t0, ~t1);
781 break;
782 #endif
783 #if TCG_TARGET_HAS_neg_i32
784 case INDEX_op_neg_i32:
785 t0 = *tb_ptr++;
786 t1 = tci_read_r32(&tb_ptr);
787 tci_write_reg32(t0, -t1);
788 break;
789 #endif
790 #if TCG_TARGET_REG_BITS == 64
791 case INDEX_op_mov_i64:
792 t0 = *tb_ptr++;
793 t1 = tci_read_r64(&tb_ptr);
794 tci_write_reg64(t0, t1);
795 break;
796 case INDEX_op_movi_i64:
797 t0 = *tb_ptr++;
798 t1 = tci_read_i64(&tb_ptr);
799 tci_write_reg64(t0, t1);
800 break;
801
802 /* Load/store operations (64 bit). */
803
804 case INDEX_op_ld8u_i64:
805 t0 = *tb_ptr++;
806 t1 = tci_read_r(&tb_ptr);
807 t2 = tci_read_i32(&tb_ptr);
808 tci_write_reg8(t0, *(uint8_t *)(t1 + t2));
809 break;
810 case INDEX_op_ld8s_i64:
811 case INDEX_op_ld16u_i64:
812 case INDEX_op_ld16s_i64:
813 TODO();
814 break;
815 case INDEX_op_ld32u_i64:
816 t0 = *tb_ptr++;
817 t1 = tci_read_r(&tb_ptr);
818 t2 = tci_read_i32(&tb_ptr);
819 tci_write_reg32(t0, *(uint32_t *)(t1 + t2));
820 break;
821 case INDEX_op_ld32s_i64:
822 t0 = *tb_ptr++;
823 t1 = tci_read_r(&tb_ptr);
824 t2 = tci_read_i32(&tb_ptr);
825 tci_write_reg32s(t0, *(int32_t *)(t1 + t2));
826 break;
827 case INDEX_op_ld_i64:
828 t0 = *tb_ptr++;
829 t1 = tci_read_r(&tb_ptr);
830 t2 = tci_read_i32(&tb_ptr);
831 tci_write_reg64(t0, *(uint64_t *)(t1 + t2));
832 break;
833 case INDEX_op_st8_i64:
834 t0 = tci_read_r8(&tb_ptr);
835 t1 = tci_read_r(&tb_ptr);
836 t2 = tci_read_i32(&tb_ptr);
837 *(uint8_t *)(t1 + t2) = t0;
838 break;
839 case INDEX_op_st16_i64:
840 t0 = tci_read_r16(&tb_ptr);
841 t1 = tci_read_r(&tb_ptr);
842 t2 = tci_read_i32(&tb_ptr);
843 *(uint16_t *)(t1 + t2) = t0;
844 break;
845 case INDEX_op_st32_i64:
846 t0 = tci_read_r32(&tb_ptr);
847 t1 = tci_read_r(&tb_ptr);
848 t2 = tci_read_i32(&tb_ptr);
849 *(uint32_t *)(t1 + t2) = t0;
850 break;
851 case INDEX_op_st_i64:
852 t0 = tci_read_r64(&tb_ptr);
853 t1 = tci_read_r(&tb_ptr);
854 t2 = tci_read_i32(&tb_ptr);
855 *(uint64_t *)(t1 + t2) = t0;
856 break;
857
858 /* Arithmetic operations (64 bit). */
859
860 case INDEX_op_add_i64:
861 t0 = *tb_ptr++;
862 t1 = tci_read_ri64(&tb_ptr);
863 t2 = tci_read_ri64(&tb_ptr);
864 tci_write_reg64(t0, t1 + t2);
865 break;
866 case INDEX_op_sub_i64:
867 t0 = *tb_ptr++;
868 t1 = tci_read_ri64(&tb_ptr);
869 t2 = tci_read_ri64(&tb_ptr);
870 tci_write_reg64(t0, t1 - t2);
871 break;
872 case INDEX_op_mul_i64:
873 t0 = *tb_ptr++;
874 t1 = tci_read_ri64(&tb_ptr);
875 t2 = tci_read_ri64(&tb_ptr);
876 tci_write_reg64(t0, t1 * t2);
877 break;
878 #if TCG_TARGET_HAS_div_i64
879 case INDEX_op_div_i64:
880 case INDEX_op_divu_i64:
881 case INDEX_op_rem_i64:
882 case INDEX_op_remu_i64:
883 TODO();
884 break;
885 #elif TCG_TARGET_HAS_div2_i64
886 case INDEX_op_div2_i64:
887 case INDEX_op_divu2_i64:
888 TODO();
889 break;
890 #endif
891 case INDEX_op_and_i64:
892 t0 = *tb_ptr++;
893 t1 = tci_read_ri64(&tb_ptr);
894 t2 = tci_read_ri64(&tb_ptr);
895 tci_write_reg64(t0, t1 & t2);
896 break;
897 case INDEX_op_or_i64:
898 t0 = *tb_ptr++;
899 t1 = tci_read_ri64(&tb_ptr);
900 t2 = tci_read_ri64(&tb_ptr);
901 tci_write_reg64(t0, t1 | t2);
902 break;
903 case INDEX_op_xor_i64:
904 t0 = *tb_ptr++;
905 t1 = tci_read_ri64(&tb_ptr);
906 t2 = tci_read_ri64(&tb_ptr);
907 tci_write_reg64(t0, t1 ^ t2);
908 break;
909
910 /* Shift/rotate operations (64 bit). */
911
912 case INDEX_op_shl_i64:
913 t0 = *tb_ptr++;
914 t1 = tci_read_ri64(&tb_ptr);
915 t2 = tci_read_ri64(&tb_ptr);
916 tci_write_reg64(t0, t1 << t2);
917 break;
918 case INDEX_op_shr_i64:
919 t0 = *tb_ptr++;
920 t1 = tci_read_ri64(&tb_ptr);
921 t2 = tci_read_ri64(&tb_ptr);
922 tci_write_reg64(t0, t1 >> t2);
923 break;
924 case INDEX_op_sar_i64:
925 t0 = *tb_ptr++;
926 t1 = tci_read_ri64(&tb_ptr);
927 t2 = tci_read_ri64(&tb_ptr);
928 tci_write_reg64(t0, ((int64_t)t1 >> t2));
929 break;
930 #if TCG_TARGET_HAS_rot_i64
931 case INDEX_op_rotl_i64:
932 case INDEX_op_rotr_i64:
933 TODO();
934 break;
935 #endif
936 case INDEX_op_brcond_i64:
937 t0 = tci_read_r64(&tb_ptr);
938 t1 = tci_read_ri64(&tb_ptr);
939 condition = *tb_ptr++;
940 label = tci_read_label(&tb_ptr);
941 if (tci_compare64(t0, t1, condition)) {
942 assert(tb_ptr == old_code_ptr + op_size);
943 tb_ptr = (uint8_t *)label;
944 continue;
945 }
946 break;
947 #if TCG_TARGET_HAS_ext8u_i64
948 case INDEX_op_ext8u_i64:
949 t0 = *tb_ptr++;
950 t1 = tci_read_r8(&tb_ptr);
951 tci_write_reg64(t0, t1);
952 break;
953 #endif
954 #if TCG_TARGET_HAS_ext8s_i64
955 case INDEX_op_ext8s_i64:
956 t0 = *tb_ptr++;
957 t1 = tci_read_r8s(&tb_ptr);
958 tci_write_reg64(t0, t1);
959 break;
960 #endif
961 #if TCG_TARGET_HAS_ext16s_i64
962 case INDEX_op_ext16s_i64:
963 t0 = *tb_ptr++;
964 t1 = tci_read_r16s(&tb_ptr);
965 tci_write_reg64(t0, t1);
966 break;
967 #endif
968 #if TCG_TARGET_HAS_ext16u_i64
969 case INDEX_op_ext16u_i64:
970 t0 = *tb_ptr++;
971 t1 = tci_read_r16(&tb_ptr);
972 tci_write_reg64(t0, t1);
973 break;
974 #endif
975 #if TCG_TARGET_HAS_ext32s_i64
976 case INDEX_op_ext32s_i64:
977 t0 = *tb_ptr++;
978 t1 = tci_read_r32s(&tb_ptr);
979 tci_write_reg64(t0, t1);
980 break;
981 #endif
982 #if TCG_TARGET_HAS_ext32u_i64
983 case INDEX_op_ext32u_i64:
984 t0 = *tb_ptr++;
985 t1 = tci_read_r32(&tb_ptr);
986 tci_write_reg64(t0, t1);
987 break;
988 #endif
989 #if TCG_TARGET_HAS_bswap16_i64
990 case INDEX_op_bswap16_i64:
991 TODO();
992 t0 = *tb_ptr++;
993 t1 = tci_read_r16(&tb_ptr);
994 tci_write_reg64(t0, bswap16(t1));
995 break;
996 #endif
997 #if TCG_TARGET_HAS_bswap32_i64
998 case INDEX_op_bswap32_i64:
999 t0 = *tb_ptr++;
1000 t1 = tci_read_r32(&tb_ptr);
1001 tci_write_reg64(t0, bswap32(t1));
1002 break;
1003 #endif
1004 #if TCG_TARGET_HAS_bswap64_i64
1005 case INDEX_op_bswap64_i64:
1006 TODO();
1007 t0 = *tb_ptr++;
1008 t1 = tci_read_r64(&tb_ptr);
1009 tci_write_reg64(t0, bswap64(t1));
1010 break;
1011 #endif
1012 #if TCG_TARGET_HAS_not_i64
1013 case INDEX_op_not_i64:
1014 t0 = *tb_ptr++;
1015 t1 = tci_read_r64(&tb_ptr);
1016 tci_write_reg64(t0, ~t1);
1017 break;
1018 #endif
1019 #if TCG_TARGET_HAS_neg_i64
1020 case INDEX_op_neg_i64:
1021 t0 = *tb_ptr++;
1022 t1 = tci_read_r64(&tb_ptr);
1023 tci_write_reg64(t0, -t1);
1024 break;
1025 #endif
1026 #endif /* TCG_TARGET_REG_BITS == 64 */
1027
1028 /* QEMU specific operations. */
1029
1030 #if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
1031 case INDEX_op_debug_insn_start:
1032 TODO();
1033 break;
1034 #else
1035 case INDEX_op_debug_insn_start:
1036 TODO();
1037 break;
1038 #endif
1039 case INDEX_op_exit_tb:
1040 next_tb = *(uint64_t *)tb_ptr;
1041 goto exit;
1042 break;
1043 case INDEX_op_goto_tb:
1044 t0 = tci_read_i32(&tb_ptr);
1045 assert(tb_ptr == old_code_ptr + op_size);
1046 tb_ptr += (int32_t)t0;
1047 continue;
1048 case INDEX_op_qemu_ld8u:
1049 t0 = *tb_ptr++;
1050 taddr = tci_read_ulong(&tb_ptr);
1051 #ifdef CONFIG_SOFTMMU
1052 tmp8 = __ldb_mmu(taddr, tci_read_i(&tb_ptr));
1053 #else
1054 host_addr = (tcg_target_ulong)taddr;
1055 assert(taddr == host_addr);
1056 tmp8 = *(uint8_t *)(host_addr + GUEST_BASE);
1057 #endif
1058 tci_write_reg8(t0, tmp8);
1059 break;
1060 case INDEX_op_qemu_ld8s:
1061 t0 = *tb_ptr++;
1062 taddr = tci_read_ulong(&tb_ptr);
1063 #ifdef CONFIG_SOFTMMU
1064 tmp8 = __ldb_mmu(taddr, tci_read_i(&tb_ptr));
1065 #else
1066 host_addr = (tcg_target_ulong)taddr;
1067 assert(taddr == host_addr);
1068 tmp8 = *(uint8_t *)(host_addr + GUEST_BASE);
1069 #endif
1070 tci_write_reg8s(t0, tmp8);
1071 break;
1072 case INDEX_op_qemu_ld16u:
1073 t0 = *tb_ptr++;
1074 taddr = tci_read_ulong(&tb_ptr);
1075 #ifdef CONFIG_SOFTMMU
1076 tmp16 = __ldw_mmu(taddr, tci_read_i(&tb_ptr));
1077 #else
1078 host_addr = (tcg_target_ulong)taddr;
1079 assert(taddr == host_addr);
1080 tmp16 = tswap16(*(uint16_t *)(host_addr + GUEST_BASE));
1081 #endif
1082 tci_write_reg16(t0, tmp16);
1083 break;
1084 case INDEX_op_qemu_ld16s:
1085 t0 = *tb_ptr++;
1086 taddr = tci_read_ulong(&tb_ptr);
1087 #ifdef CONFIG_SOFTMMU
1088 tmp16 = __ldw_mmu(taddr, tci_read_i(&tb_ptr));
1089 #else
1090 host_addr = (tcg_target_ulong)taddr;
1091 assert(taddr == host_addr);
1092 tmp16 = tswap16(*(uint16_t *)(host_addr + GUEST_BASE));
1093 #endif
1094 tci_write_reg16s(t0, tmp16);
1095 break;
1096 #if TCG_TARGET_REG_BITS == 64
1097 case INDEX_op_qemu_ld32u:
1098 t0 = *tb_ptr++;
1099 taddr = tci_read_ulong(&tb_ptr);
1100 #ifdef CONFIG_SOFTMMU
1101 tmp32 = __ldl_mmu(taddr, tci_read_i(&tb_ptr));
1102 #else
1103 host_addr = (tcg_target_ulong)taddr;
1104 assert(taddr == host_addr);
1105 tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));
1106 #endif
1107 tci_write_reg32(t0, tmp32);
1108 break;
1109 case INDEX_op_qemu_ld32s:
1110 t0 = *tb_ptr++;
1111 taddr = tci_read_ulong(&tb_ptr);
1112 #ifdef CONFIG_SOFTMMU
1113 tmp32 = __ldl_mmu(taddr, tci_read_i(&tb_ptr));
1114 #else
1115 host_addr = (tcg_target_ulong)taddr;
1116 assert(taddr == host_addr);
1117 tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));
1118 #endif
1119 tci_write_reg32s(t0, tmp32);
1120 break;
1121 #endif /* TCG_TARGET_REG_BITS == 64 */
1122 case INDEX_op_qemu_ld32:
1123 t0 = *tb_ptr++;
1124 taddr = tci_read_ulong(&tb_ptr);
1125 #ifdef CONFIG_SOFTMMU
1126 tmp32 = __ldl_mmu(taddr, tci_read_i(&tb_ptr));
1127 #else
1128 host_addr = (tcg_target_ulong)taddr;
1129 assert(taddr == host_addr);
1130 tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));
1131 #endif
1132 tci_write_reg32(t0, tmp32);
1133 break;
1134 case INDEX_op_qemu_ld64:
1135 t0 = *tb_ptr++;
1136 #if TCG_TARGET_REG_BITS == 32
1137 t1 = *tb_ptr++;
1138 #endif
1139 taddr = tci_read_ulong(&tb_ptr);
1140 #ifdef CONFIG_SOFTMMU
1141 tmp64 = __ldq_mmu(taddr, tci_read_i(&tb_ptr));
1142 #else
1143 host_addr = (tcg_target_ulong)taddr;
1144 assert(taddr == host_addr);
1145 tmp64 = tswap64(*(uint64_t *)(host_addr + GUEST_BASE));
1146 #endif
1147 tci_write_reg(t0, tmp64);
1148 #if TCG_TARGET_REG_BITS == 32
1149 tci_write_reg(t1, tmp64 >> 32);
1150 #endif
1151 break;
1152 case INDEX_op_qemu_st8:
1153 t0 = tci_read_r8(&tb_ptr);
1154 taddr = tci_read_ulong(&tb_ptr);
1155 #ifdef CONFIG_SOFTMMU
1156 t2 = tci_read_i(&tb_ptr);
1157 __stb_mmu(taddr, t0, t2);
1158 #else
1159 host_addr = (tcg_target_ulong)taddr;
1160 assert(taddr == host_addr);
1161 *(uint8_t *)(host_addr + GUEST_BASE) = t0;
1162 #endif
1163 break;
1164 case INDEX_op_qemu_st16:
1165 t0 = tci_read_r16(&tb_ptr);
1166 taddr = tci_read_ulong(&tb_ptr);
1167 #ifdef CONFIG_SOFTMMU
1168 t2 = tci_read_i(&tb_ptr);
1169 __stw_mmu(taddr, t0, t2);
1170 #else
1171 host_addr = (tcg_target_ulong)taddr;
1172 assert(taddr == host_addr);
1173 *(uint16_t *)(host_addr + GUEST_BASE) = tswap16(t0);
1174 #endif
1175 break;
1176 case INDEX_op_qemu_st32:
1177 t0 = tci_read_r32(&tb_ptr);
1178 taddr = tci_read_ulong(&tb_ptr);
1179 #ifdef CONFIG_SOFTMMU
1180 t2 = tci_read_i(&tb_ptr);
1181 __stl_mmu(taddr, t0, t2);
1182 #else
1183 host_addr = (tcg_target_ulong)taddr;
1184 assert(taddr == host_addr);
1185 *(uint32_t *)(host_addr + GUEST_BASE) = tswap32(t0);
1186 #endif
1187 break;
1188 case INDEX_op_qemu_st64:
1189 tmp64 = tci_read_r64(&tb_ptr);
1190 taddr = tci_read_ulong(&tb_ptr);
1191 #ifdef CONFIG_SOFTMMU
1192 t2 = tci_read_i(&tb_ptr);
1193 __stq_mmu(taddr, tmp64, t2);
1194 #else
1195 host_addr = (tcg_target_ulong)taddr;
1196 assert(taddr == host_addr);
1197 *(uint64_t *)(host_addr + GUEST_BASE) = tswap64(tmp64);
1198 #endif
1199 break;
1200 default:
1201 TODO();
1202 break;
1203 }
1204 assert(tb_ptr == old_code_ptr + op_size);
1205 }
1206 exit:
1207 return next_tb;
1208 }
AR7 emulation for QEMU