?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
megasas: add MegaRAID SAS 2108 emulation
[qemu/ar7.git] / target-openrisc / translate.c
blob407bd9762fc4bad34d1b019e0e3d952cffac0d7a
1 /*
2 * OpenRISC translation
3 *
4 * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
5 * Feng Gao <gf91597@gmail.com>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "cpu.h"
22 #include "exec/exec-all.h"
23 #include "disas/disas.h"
24 #include "tcg-op.h"
25 #include "qemu-common.h"
26 #include "qemu/log.h"
27 #include "config.h"
28 #include "qemu/bitops.h"
29 #include "exec/cpu_ldst.h"
30
31 #include "exec/helper-proto.h"
32 #include "exec/helper-gen.h"
33
34 #include "trace-tcg.h"
35
36
37 #define OPENRISC_DISAS
38
39 #ifdef OPENRISC_DISAS
40 # define LOG_DIS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
41 #else
42 # define LOG_DIS(...) do { } while (0)
43 #endif
44
45 typedef struct DisasContext {
46 TranslationBlock *tb;
47 target_ulong pc, ppc, npc;
48 uint32_t tb_flags, synced_flags, flags;
49 uint32_t is_jmp;
50 uint32_t mem_idx;
51 int singlestep_enabled;
52 uint32_t delayed_branch;
53 } DisasContext;
54
55 static TCGv_ptr cpu_env;
56 static TCGv cpu_sr;
57 static TCGv cpu_R[32];
58 static TCGv cpu_pc;
59 static TCGv jmp_pc; /* l.jr/l.jalr temp pc */
60 static TCGv cpu_npc;
61 static TCGv cpu_ppc;
62 static TCGv_i32 env_btaken; /* bf/bnf , F flag taken */
63 static TCGv_i32 fpcsr;
64 static TCGv machi, maclo;
65 static TCGv fpmaddhi, fpmaddlo;
66 static TCGv_i32 env_flags;
67 #include "exec/gen-icount.h"
68
69 void openrisc_translate_init(void)
70 {
71 static const char * const regnames[] = {
72 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
73 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
74 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
75 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
76 };
77 int i;
78
79 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
80 cpu_sr = tcg_global_mem_new(TCG_AREG0,
81 offsetof(CPUOpenRISCState, sr), "sr");
82 env_flags = tcg_global_mem_new_i32(TCG_AREG0,
83 offsetof(CPUOpenRISCState, flags),
84 "flags");
85 cpu_pc = tcg_global_mem_new(TCG_AREG0,
86 offsetof(CPUOpenRISCState, pc), "pc");
87 cpu_npc = tcg_global_mem_new(TCG_AREG0,
88 offsetof(CPUOpenRISCState, npc), "npc");
89 cpu_ppc = tcg_global_mem_new(TCG_AREG0,
90 offsetof(CPUOpenRISCState, ppc), "ppc");
91 jmp_pc = tcg_global_mem_new(TCG_AREG0,
92 offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc");
93 env_btaken = tcg_global_mem_new_i32(TCG_AREG0,
94 offsetof(CPUOpenRISCState, btaken),
95 "btaken");
96 fpcsr = tcg_global_mem_new_i32(TCG_AREG0,
97 offsetof(CPUOpenRISCState, fpcsr),
98 "fpcsr");
99 machi = tcg_global_mem_new(TCG_AREG0,
100 offsetof(CPUOpenRISCState, machi),
101 "machi");
102 maclo = tcg_global_mem_new(TCG_AREG0,
103 offsetof(CPUOpenRISCState, maclo),
104 "maclo");
105 fpmaddhi = tcg_global_mem_new(TCG_AREG0,
106 offsetof(CPUOpenRISCState, fpmaddhi),
107 "fpmaddhi");
108 fpmaddlo = tcg_global_mem_new(TCG_AREG0,
109 offsetof(CPUOpenRISCState, fpmaddlo),
110 "fpmaddlo");
111 for (i = 0; i < 32; i++) {
112 cpu_R[i] = tcg_global_mem_new(TCG_AREG0,
113 offsetof(CPUOpenRISCState, gpr[i]),
114 regnames[i]);
115 }
116 }
117
118 /* Writeback SR_F translation space to execution space. */
119 static inline void wb_SR_F(void)
120 {
121 int label;
122
123 label = gen_new_label();
124 tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F);
125 tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label);
126 tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F);
127 gen_set_label(label);
128 }
129
130 static inline int zero_extend(unsigned int val, int width)
131 {
132 return val & ((1 << width) - 1);
133 }
134
135 static inline int sign_extend(unsigned int val, int width)
136 {
137 int sval;
138
139 /* LSL */
140 val <<= TARGET_LONG_BITS - width;
141 sval = val;
142 /* ASR. */
143 sval >>= TARGET_LONG_BITS - width;
144 return sval;
145 }
146
147 static inline void gen_sync_flags(DisasContext *dc)
148 {
149 /* Sync the tb dependent flag between translate and runtime. */
150 if (dc->tb_flags != dc->synced_flags) {
151 tcg_gen_movi_tl(env_flags, dc->tb_flags);
152 dc->synced_flags = dc->tb_flags;
153 }
154 }
155
156 static void gen_exception(DisasContext *dc, unsigned int excp)
157 {
158 TCGv_i32 tmp = tcg_const_i32(excp);
159 gen_helper_exception(cpu_env, tmp);
160 tcg_temp_free_i32(tmp);
161 }
162
163 static void gen_illegal_exception(DisasContext *dc)
164 {
165 tcg_gen_movi_tl(cpu_pc, dc->pc);
166 gen_exception(dc, EXCP_ILLEGAL);
167 dc->is_jmp = DISAS_UPDATE;
168 }
169
170 /* not used yet, open it when we need or64. */
171 /*#ifdef TARGET_OPENRISC64
172 static void check_ob64s(DisasContext *dc)
173 {
174 if (!(dc->flags & CPUCFGR_OB64S)) {
175 gen_illegal_exception(dc);
176 }
177 }
178
179 static void check_of64s(DisasContext *dc)
180 {
181 if (!(dc->flags & CPUCFGR_OF64S)) {
182 gen_illegal_exception(dc);
183 }
184 }
185
186 static void check_ov64s(DisasContext *dc)
187 {
188 if (!(dc->flags & CPUCFGR_OV64S)) {
189 gen_illegal_exception(dc);
190 }
191 }
192 #endif*/
193
194 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
195 {
196 TranslationBlock *tb;
197 tb = dc->tb;
198 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
199 likely(!dc->singlestep_enabled)) {
200 tcg_gen_movi_tl(cpu_pc, dest);
201 tcg_gen_goto_tb(n);
202 tcg_gen_exit_tb((uintptr_t)tb + n);
203 } else {
204 tcg_gen_movi_tl(cpu_pc, dest);
205 if (dc->singlestep_enabled) {
206 gen_exception(dc, EXCP_DEBUG);
207 }
208 tcg_gen_exit_tb(0);
209 }
210 }
211
212 static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0)
213 {
214 target_ulong tmp_pc;
215 /* N26, 26bits imm */
216 tmp_pc = sign_extend((imm<<2), 26) + dc->pc;
217
218 switch (op0) {
219 case 0x00: /* l.j */
220 tcg_gen_movi_tl(jmp_pc, tmp_pc);
221 break;
222 case 0x01: /* l.jal */
223 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
224 tcg_gen_movi_tl(jmp_pc, tmp_pc);
225 break;
226 case 0x03: /* l.bnf */
227 case 0x04: /* l.bf */
228 {
229 int lab = gen_new_label();
230 TCGv sr_f = tcg_temp_new();
231 tcg_gen_movi_tl(jmp_pc, dc->pc+8);
232 tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
233 tcg_gen_brcondi_i32(op0 == 0x03 ? TCG_COND_EQ : TCG_COND_NE,
234 sr_f, SR_F, lab);
235 tcg_gen_movi_tl(jmp_pc, tmp_pc);
236 gen_set_label(lab);
237 tcg_temp_free(sr_f);
238 }
239 break;
240 case 0x11: /* l.jr */
241 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
242 break;
243 case 0x12: /* l.jalr */
244 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
245 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
246 break;
247 default:
248 gen_illegal_exception(dc);
249 break;
250 }
251
252 dc->delayed_branch = 2;
253 dc->tb_flags |= D_FLAG;
254 gen_sync_flags(dc);
255 }
256
257
258 static void dec_calc(DisasContext *dc, uint32_t insn)
259 {
260 uint32_t op0, op1, op2;
261 uint32_t ra, rb, rd;
262 op0 = extract32(insn, 0, 4);
263 op1 = extract32(insn, 8, 2);
264 op2 = extract32(insn, 6, 2);
265 ra = extract32(insn, 16, 5);
266 rb = extract32(insn, 11, 5);
267 rd = extract32(insn, 21, 5);
268
269 switch (op0) {
270 case 0x0000:
271 switch (op1) {
272 case 0x00: /* l.add */
273 LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb);
274 {
275 int lab = gen_new_label();
276 TCGv_i64 ta = tcg_temp_new_i64();
277 TCGv_i64 tb = tcg_temp_new_i64();
278 TCGv_i64 td = tcg_temp_local_new_i64();
279 TCGv_i32 res = tcg_temp_local_new_i32();
280 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
281 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
282 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
283 tcg_gen_add_i64(td, ta, tb);
284 tcg_gen_trunc_i64_i32(res, td);
285 tcg_gen_shri_i64(td, td, 31);
286 tcg_gen_andi_i64(td, td, 0x3);
287 /* Jump to lab when no overflow. */
288 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
289 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
290 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
291 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
292 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
293 gen_exception(dc, EXCP_RANGE);
294 gen_set_label(lab);
295 tcg_gen_mov_i32(cpu_R[rd], res);
296 tcg_temp_free_i64(ta);
297 tcg_temp_free_i64(tb);
298 tcg_temp_free_i64(td);
299 tcg_temp_free_i32(res);
300 tcg_temp_free_i32(sr_ove);
301 }
302 break;
303 default:
304 gen_illegal_exception(dc);
305 break;
306 }
307 break;
308
309 case 0x0001: /* l.addc */
310 switch (op1) {
311 case 0x00:
312 LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb);
313 {
314 int lab = gen_new_label();
315 TCGv_i64 ta = tcg_temp_new_i64();
316 TCGv_i64 tb = tcg_temp_new_i64();
317 TCGv_i64 tcy = tcg_temp_local_new_i64();
318 TCGv_i64 td = tcg_temp_local_new_i64();
319 TCGv_i32 res = tcg_temp_local_new_i32();
320 TCGv_i32 sr_cy = tcg_temp_local_new_i32();
321 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
322 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
323 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
324 tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
325 tcg_gen_extu_i32_i64(tcy, sr_cy);
326 tcg_gen_shri_i64(tcy, tcy, 10);
327 tcg_gen_add_i64(td, ta, tb);
328 tcg_gen_add_i64(td, td, tcy);
329 tcg_gen_trunc_i64_i32(res, td);
330 tcg_gen_shri_i64(td, td, 32);
331 tcg_gen_andi_i64(td, td, 0x3);
332 /* Jump to lab when no overflow. */
333 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
334 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
335 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
336 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
337 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
338 gen_exception(dc, EXCP_RANGE);
339 gen_set_label(lab);
340 tcg_gen_mov_i32(cpu_R[rd], res);
341 tcg_temp_free_i64(ta);
342 tcg_temp_free_i64(tb);
343 tcg_temp_free_i64(tcy);
344 tcg_temp_free_i64(td);
345 tcg_temp_free_i32(res);
346 tcg_temp_free_i32(sr_cy);
347 tcg_temp_free_i32(sr_ove);
348 }
349 break;
350 default:
351 gen_illegal_exception(dc);
352 break;
353 }
354 break;
355
356 case 0x0002: /* l.sub */
357 switch (op1) {
358 case 0x00:
359 LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb);
360 {
361 int lab = gen_new_label();
362 TCGv_i64 ta = tcg_temp_new_i64();
363 TCGv_i64 tb = tcg_temp_new_i64();
364 TCGv_i64 td = tcg_temp_local_new_i64();
365 TCGv_i32 res = tcg_temp_local_new_i32();
366 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
367
368 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
369 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
370 tcg_gen_sub_i64(td, ta, tb);
371 tcg_gen_trunc_i64_i32(res, td);
372 tcg_gen_shri_i64(td, td, 31);
373 tcg_gen_andi_i64(td, td, 0x3);
374 /* Jump to lab when no overflow. */
375 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
376 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
377 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
378 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
379 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
380 gen_exception(dc, EXCP_RANGE);
381 gen_set_label(lab);
382 tcg_gen_mov_i32(cpu_R[rd], res);
383 tcg_temp_free_i64(ta);
384 tcg_temp_free_i64(tb);
385 tcg_temp_free_i64(td);
386 tcg_temp_free_i32(res);
387 tcg_temp_free_i32(sr_ove);
388 }
389 break;
390 default:
391 gen_illegal_exception(dc);
392 break;
393 }
394 break;
395
396 case 0x0003: /* l.and */
397 switch (op1) {
398 case 0x00:
399 LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb);
400 tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
401 break;
402 default:
403 gen_illegal_exception(dc);
404 break;
405 }
406 break;
407
408 case 0x0004: /* l.or */
409 switch (op1) {
410 case 0x00:
411 LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb);
412 tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
413 break;
414 default:
415 gen_illegal_exception(dc);
416 break;
417 }
418 break;
419
420 case 0x0005:
421 switch (op1) {
422 case 0x00: /* l.xor */
423 LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb);
424 tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
425 break;
426 default:
427 gen_illegal_exception(dc);
428 break;
429 }
430 break;
431
432 case 0x0006:
433 switch (op1) {
434 case 0x03: /* l.mul */
435 LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb);
436 if (ra != 0 && rb != 0) {
437 gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
438 } else {
439 tcg_gen_movi_tl(cpu_R[rd], 0x0);
440 }
441 break;
442 default:
443 gen_illegal_exception(dc);
444 break;
445 }
446 break;
447
448 case 0x0009:
449 switch (op1) {
450 case 0x03: /* l.div */
451 LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb);
452 {
453 int lab0 = gen_new_label();
454 int lab1 = gen_new_label();
455 int lab2 = gen_new_label();
456 int lab3 = gen_new_label();
457 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
458 if (rb == 0) {
459 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
460 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
461 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
462 gen_exception(dc, EXCP_RANGE);
463 gen_set_label(lab0);
464 } else {
465 tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb],
466 0x00000000, lab1);
467 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra],
468 0x80000000, lab2);
469 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
470 0xffffffff, lab2);
471 gen_set_label(lab1);
472 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
473 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
474 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3);
475 gen_exception(dc, EXCP_RANGE);
476 gen_set_label(lab2);
477 tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
478 gen_set_label(lab3);
479 }
480 tcg_temp_free_i32(sr_ove);
481 }
482 break;
483
484 default:
485 gen_illegal_exception(dc);
486 break;
487 }
488 break;
489
490 case 0x000a:
491 switch (op1) {
492 case 0x03: /* l.divu */
493 LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb);
494 {
495 int lab0 = gen_new_label();
496 int lab1 = gen_new_label();
497 int lab2 = gen_new_label();
498 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
499 if (rb == 0) {
500 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
501 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
502 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
503 gen_exception(dc, EXCP_RANGE);
504 gen_set_label(lab0);
505 } else {
506 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
507 0x00000000, lab1);
508 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
509 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
510 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab2);
511 gen_exception(dc, EXCP_RANGE);
512 gen_set_label(lab1);
513 tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
514 gen_set_label(lab2);
515 }
516 tcg_temp_free_i32(sr_ove);
517 }
518 break;
519
520 default:
521 gen_illegal_exception(dc);
522 break;
523 }
524 break;
525
526 case 0x000b:
527 switch (op1) {
528 case 0x03: /* l.mulu */
529 LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb);
530 if (rb != 0 && ra != 0) {
531 TCGv_i64 result = tcg_temp_local_new_i64();
532 TCGv_i64 tra = tcg_temp_local_new_i64();
533 TCGv_i64 trb = tcg_temp_local_new_i64();
534 TCGv_i64 high = tcg_temp_new_i64();
535 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
536 int lab = gen_new_label();
537 /* Calculate each result. */
538 tcg_gen_extu_i32_i64(tra, cpu_R[ra]);
539 tcg_gen_extu_i32_i64(trb, cpu_R[rb]);
540 tcg_gen_mul_i64(result, tra, trb);
541 tcg_temp_free_i64(tra);
542 tcg_temp_free_i64(trb);
543 tcg_gen_shri_i64(high, result, TARGET_LONG_BITS);
544 /* Overflow or not. */
545 tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab);
546 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
547 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
548 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab);
549 gen_exception(dc, EXCP_RANGE);
550 gen_set_label(lab);
551 tcg_temp_free_i64(high);
552 tcg_gen_trunc_i64_tl(cpu_R[rd], result);
553 tcg_temp_free_i64(result);
554 tcg_temp_free_i32(sr_ove);
555 } else {
556 tcg_gen_movi_tl(cpu_R[rd], 0);
557 }
558 break;
559
560 default:
561 gen_illegal_exception(dc);
562 break;
563 }
564 break;
565
566 case 0x000e:
567 switch (op1) {
568 case 0x00: /* l.cmov */
569 LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb);
570 {
571 int lab = gen_new_label();
572 TCGv res = tcg_temp_local_new();
573 TCGv sr_f = tcg_temp_new();
574 tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
575 tcg_gen_mov_tl(res, cpu_R[rb]);
576 tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab);
577 tcg_gen_mov_tl(res, cpu_R[ra]);
578 gen_set_label(lab);
579 tcg_gen_mov_tl(cpu_R[rd], res);
580 tcg_temp_free(sr_f);
581 tcg_temp_free(res);
582 }
583 break;
584
585 default:
586 gen_illegal_exception(dc);
587 break;
588 }
589 break;
590
591 case 0x000f:
592 switch (op1) {
593 case 0x00: /* l.ff1 */
594 LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb);
595 gen_helper_ff1(cpu_R[rd], cpu_R[ra]);
596 break;
597 case 0x01: /* l.fl1 */
598 LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb);
599 gen_helper_fl1(cpu_R[rd], cpu_R[ra]);
600 break;
601
602 default:
603 gen_illegal_exception(dc);
604 break;
605 }
606 break;
607
608 case 0x0008:
609 switch (op1) {
610 case 0x00:
611 switch (op2) {
612 case 0x00: /* l.sll */
613 LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb);
614 tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
615 break;
616 case 0x01: /* l.srl */
617 LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb);
618 tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
619 break;
620 case 0x02: /* l.sra */
621 LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb);
622 tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
623 break;
624 case 0x03: /* l.ror */
625 LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb);
626 tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
627 break;
628
629 default:
630 gen_illegal_exception(dc);
631 break;
632 }
633 break;
634
635 default:
636 gen_illegal_exception(dc);
637 break;
638 }
639 break;
640
641 case 0x000c:
642 switch (op1) {
643 case 0x00:
644 switch (op2) {
645 case 0x00: /* l.exths */
646 LOG_DIS("l.exths r%d, r%d\n", rd, ra);
647 tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]);
648 break;
649 case 0x01: /* l.extbs */
650 LOG_DIS("l.extbs r%d, r%d\n", rd, ra);
651 tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]);
652 break;
653 case 0x02: /* l.exthz */
654 LOG_DIS("l.exthz r%d, r%d\n", rd, ra);
655 tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]);
656 break;
657 case 0x03: /* l.extbz */
658 LOG_DIS("l.extbz r%d, r%d\n", rd, ra);
659 tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]);
660 break;
661
662 default:
663 gen_illegal_exception(dc);
664 break;
665 }
666 break;
667
668 default:
669 gen_illegal_exception(dc);
670 break;
671 }
672 break;
673
674 case 0x000d:
675 switch (op1) {
676 case 0x00:
677 switch (op2) {
678 case 0x00: /* l.extws */
679 LOG_DIS("l.extws r%d, r%d\n", rd, ra);
680 tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]);
681 break;
682 case 0x01: /* l.extwz */
683 LOG_DIS("l.extwz r%d, r%d\n", rd, ra);
684 tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]);
685 break;
686
687 default:
688 gen_illegal_exception(dc);
689 break;
690 }
691 break;
692
693 default:
694 gen_illegal_exception(dc);
695 break;
696 }
697 break;
698
699 default:
700 gen_illegal_exception(dc);
701 break;
702 }
703 }
704
705 static void dec_misc(DisasContext *dc, uint32_t insn)
706 {
707 uint32_t op0, op1;
708 uint32_t ra, rb, rd;
709 #ifdef OPENRISC_DISAS
710 uint32_t L6, K5;
711 #endif
712 uint32_t I16, I5, I11, N26, tmp;
713 TCGMemOp mop;
714
715 op0 = extract32(insn, 26, 6);
716 op1 = extract32(insn, 24, 2);
717 ra = extract32(insn, 16, 5);
718 rb = extract32(insn, 11, 5);
719 rd = extract32(insn, 21, 5);
720 #ifdef OPENRISC_DISAS
721 L6 = extract32(insn, 5, 6);
722 K5 = extract32(insn, 0, 5);
723 #endif
724 I16 = extract32(insn, 0, 16);
725 I5 = extract32(insn, 21, 5);
726 I11 = extract32(insn, 0, 11);
727 N26 = extract32(insn, 0, 26);
728 tmp = (I5<<11) + I11;
729
730 switch (op0) {
731 case 0x00: /* l.j */
732 LOG_DIS("l.j %d\n", N26);
733 gen_jump(dc, N26, 0, op0);
734 break;
735
736 case 0x01: /* l.jal */
737 LOG_DIS("l.jal %d\n", N26);
738 gen_jump(dc, N26, 0, op0);
739 break;
740
741 case 0x03: /* l.bnf */
742 LOG_DIS("l.bnf %d\n", N26);
743 gen_jump(dc, N26, 0, op0);
744 break;
745
746 case 0x04: /* l.bf */
747 LOG_DIS("l.bf %d\n", N26);
748 gen_jump(dc, N26, 0, op0);
749 break;
750
751 case 0x05:
752 switch (op1) {
753 case 0x01: /* l.nop */
754 LOG_DIS("l.nop %d\n", I16);
755 break;
756
757 default:
758 gen_illegal_exception(dc);
759 break;
760 }
761 break;
762
763 case 0x11: /* l.jr */
764 LOG_DIS("l.jr r%d\n", rb);
765 gen_jump(dc, 0, rb, op0);
766 break;
767
768 case 0x12: /* l.jalr */
769 LOG_DIS("l.jalr r%d\n", rb);
770 gen_jump(dc, 0, rb, op0);
771 break;
772
773 case 0x13: /* l.maci */
774 LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11);
775 {
776 TCGv_i64 t1 = tcg_temp_new_i64();
777 TCGv_i64 t2 = tcg_temp_new_i64();
778 TCGv_i32 dst = tcg_temp_new_i32();
779 TCGv ttmp = tcg_const_tl(tmp);
780 tcg_gen_mul_tl(dst, cpu_R[ra], ttmp);
781 tcg_gen_ext_i32_i64(t1, dst);
782 tcg_gen_concat_i32_i64(t2, maclo, machi);
783 tcg_gen_add_i64(t2, t2, t1);
784 tcg_gen_trunc_i64_i32(maclo, t2);
785 tcg_gen_shri_i64(t2, t2, 32);
786 tcg_gen_trunc_i64_i32(machi, t2);
787 tcg_temp_free_i32(dst);
788 tcg_temp_free(ttmp);
789 tcg_temp_free_i64(t1);
790 tcg_temp_free_i64(t2);
791 }
792 break;
793
794 case 0x09: /* l.rfe */
795 LOG_DIS("l.rfe\n");
796 {
797 #if defined(CONFIG_USER_ONLY)
798 return;
799 #else
800 if (dc->mem_idx == MMU_USER_IDX) {
801 gen_illegal_exception(dc);
802 return;
803 }
804 gen_helper_rfe(cpu_env);
805 dc->is_jmp = DISAS_UPDATE;
806 #endif
807 }
808 break;
809
810 case 0x1c: /* l.cust1 */
811 LOG_DIS("l.cust1\n");
812 break;
813
814 case 0x1d: /* l.cust2 */
815 LOG_DIS("l.cust2\n");
816 break;
817
818 case 0x1e: /* l.cust3 */
819 LOG_DIS("l.cust3\n");
820 break;
821
822 case 0x1f: /* l.cust4 */
823 LOG_DIS("l.cust4\n");
824 break;
825
826 case 0x3c: /* l.cust5 */
827 LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5);
828 break;
829
830 case 0x3d: /* l.cust6 */
831 LOG_DIS("l.cust6\n");
832 break;
833
834 case 0x3e: /* l.cust7 */
835 LOG_DIS("l.cust7\n");
836 break;
837
838 case 0x3f: /* l.cust8 */
839 LOG_DIS("l.cust8\n");
840 break;
841
842 /* not used yet, open it when we need or64. */
843 /*#ifdef TARGET_OPENRISC64
844 case 0x20: l.ld
845 LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16);
846 check_ob64s(dc);
847 mop = MO_TEQ;
848 goto do_load;
849 #endif*/
850
851 case 0x21: /* l.lwz */
852 LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16);
853 mop = MO_TEUL;
854 goto do_load;
855
856 case 0x22: /* l.lws */
857 LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16);
858 mop = MO_TESL;
859 goto do_load;
860
861 case 0x23: /* l.lbz */
862 LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16);
863 mop = MO_UB;
864 goto do_load;
865
866 case 0x24: /* l.lbs */
867 LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16);
868 mop = MO_SB;
869 goto do_load;
870
871 case 0x25: /* l.lhz */
872 LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16);
873 mop = MO_TEUW;
874 goto do_load;
875
876 case 0x26: /* l.lhs */
877 LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16);
878 mop = MO_TESW;
879 goto do_load;
880
881 do_load:
882 {
883 TCGv t0 = tcg_temp_new();
884 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
885 tcg_gen_qemu_ld_tl(cpu_R[rd], t0, dc->mem_idx, mop);
886 tcg_temp_free(t0);
887 }
888 break;
889
890 case 0x27: /* l.addi */
891 LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16);
892 {
893 if (I16 == 0) {
894 tcg_gen_mov_tl(cpu_R[rd], cpu_R[ra]);
895 } else {
896 int lab = gen_new_label();
897 TCGv_i64 ta = tcg_temp_new_i64();
898 TCGv_i64 td = tcg_temp_local_new_i64();
899 TCGv_i32 res = tcg_temp_local_new_i32();
900 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
901 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
902 tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
903 tcg_gen_trunc_i64_i32(res, td);
904 tcg_gen_shri_i64(td, td, 32);
905 tcg_gen_andi_i64(td, td, 0x3);
906 /* Jump to lab when no overflow. */
907 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
908 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
909 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
910 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
911 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
912 gen_exception(dc, EXCP_RANGE);
913 gen_set_label(lab);
914 tcg_gen_mov_i32(cpu_R[rd], res);
915 tcg_temp_free_i64(ta);
916 tcg_temp_free_i64(td);
917 tcg_temp_free_i32(res);
918 tcg_temp_free_i32(sr_ove);
919 }
920 }
921 break;
922
923 case 0x28: /* l.addic */
924 LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16);
925 {
926 int lab = gen_new_label();
927 TCGv_i64 ta = tcg_temp_new_i64();
928 TCGv_i64 td = tcg_temp_local_new_i64();
929 TCGv_i64 tcy = tcg_temp_local_new_i64();
930 TCGv_i32 res = tcg_temp_local_new_i32();
931 TCGv_i32 sr_cy = tcg_temp_local_new_i32();
932 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
933 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
934 tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
935 tcg_gen_shri_i32(sr_cy, sr_cy, 10);
936 tcg_gen_extu_i32_i64(tcy, sr_cy);
937 tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
938 tcg_gen_add_i64(td, td, tcy);
939 tcg_gen_trunc_i64_i32(res, td);
940 tcg_gen_shri_i64(td, td, 32);
941 tcg_gen_andi_i64(td, td, 0x3);
942 /* Jump to lab when no overflow. */
943 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
944 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
945 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
946 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
947 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
948 gen_exception(dc, EXCP_RANGE);
949 gen_set_label(lab);
950 tcg_gen_mov_i32(cpu_R[rd], res);
951 tcg_temp_free_i64(ta);
952 tcg_temp_free_i64(td);
953 tcg_temp_free_i64(tcy);
954 tcg_temp_free_i32(res);
955 tcg_temp_free_i32(sr_cy);
956 tcg_temp_free_i32(sr_ove);
957 }
958 break;
959
960 case 0x29: /* l.andi */
961 LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16);
962 tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
963 break;
964
965 case 0x2a: /* l.ori */
966 LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16);
967 tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
968 break;
969
970 case 0x2b: /* l.xori */
971 LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16);
972 tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16));
973 break;
974
975 case 0x2c: /* l.muli */
976 LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16);
977 if (ra != 0 && I16 != 0) {
978 TCGv_i32 im = tcg_const_i32(I16);
979 gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im);
980 tcg_temp_free_i32(im);
981 } else {
982 tcg_gen_movi_tl(cpu_R[rd], 0x0);
983 }
984 break;
985
986 case 0x2d: /* l.mfspr */
987 LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16);
988 {
989 #if defined(CONFIG_USER_ONLY)
990 return;
991 #else
992 TCGv_i32 ti = tcg_const_i32(I16);
993 if (dc->mem_idx == MMU_USER_IDX) {
994 gen_illegal_exception(dc);
995 return;
996 }
997 gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti);
998 tcg_temp_free_i32(ti);
999 #endif
1000 }
1001 break;
1002
1003 case 0x30: /* l.mtspr */
1004 LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1005 {
1006 #if defined(CONFIG_USER_ONLY)
1007 return;
1008 #else
1009 TCGv_i32 im = tcg_const_i32(tmp);
1010 if (dc->mem_idx == MMU_USER_IDX) {
1011 gen_illegal_exception(dc);
1012 return;
1013 }
1014 gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im);
1015 tcg_temp_free_i32(im);
1016 #endif
1017 }
1018 break;
1019
1020 /* not used yet, open it when we need or64. */
1021 /*#ifdef TARGET_OPENRISC64
1022 case 0x34: l.sd
1023 LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1024 check_ob64s(dc);
1025 mop = MO_TEQ;
1026 goto do_store;
1027 #endif*/
1028
1029 case 0x35: /* l.sw */
1030 LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1031 mop = MO_TEUL;
1032 goto do_store;
1033
1034 case 0x36: /* l.sb */
1035 LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1036 mop = MO_UB;
1037 goto do_store;
1038
1039 case 0x37: /* l.sh */
1040 LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1041 mop = MO_TEUW;
1042 goto do_store;
1043
1044 do_store:
1045 {
1046 TCGv t0 = tcg_temp_new();
1047 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
1048 tcg_gen_qemu_st_tl(cpu_R[rb], t0, dc->mem_idx, mop);
1049 tcg_temp_free(t0);
1050 }
1051 break;
1052
1053 default:
1054 gen_illegal_exception(dc);
1055 break;
1056 }
1057 }
1058
1059 static void dec_mac(DisasContext *dc, uint32_t insn)
1060 {
1061 uint32_t op0;
1062 uint32_t ra, rb;
1063 op0 = extract32(insn, 0, 4);
1064 ra = extract32(insn, 16, 5);
1065 rb = extract32(insn, 11, 5);
1066
1067 switch (op0) {
1068 case 0x0001: /* l.mac */
1069 LOG_DIS("l.mac r%d, r%d\n", ra, rb);
1070 {
1071 TCGv_i32 t0 = tcg_temp_new_i32();
1072 TCGv_i64 t1 = tcg_temp_new_i64();
1073 TCGv_i64 t2 = tcg_temp_new_i64();
1074 tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
1075 tcg_gen_ext_i32_i64(t1, t0);
1076 tcg_gen_concat_i32_i64(t2, maclo, machi);
1077 tcg_gen_add_i64(t2, t2, t1);
1078 tcg_gen_trunc_i64_i32(maclo, t2);
1079 tcg_gen_shri_i64(t2, t2, 32);
1080 tcg_gen_trunc_i64_i32(machi, t2);
1081 tcg_temp_free_i32(t0);
1082 tcg_temp_free_i64(t1);
1083 tcg_temp_free_i64(t2);
1084 }
1085 break;
1086
1087 case 0x0002: /* l.msb */
1088 LOG_DIS("l.msb r%d, r%d\n", ra, rb);
1089 {
1090 TCGv_i32 t0 = tcg_temp_new_i32();
1091 TCGv_i64 t1 = tcg_temp_new_i64();
1092 TCGv_i64 t2 = tcg_temp_new_i64();
1093 tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
1094 tcg_gen_ext_i32_i64(t1, t0);
1095 tcg_gen_concat_i32_i64(t2, maclo, machi);
1096 tcg_gen_sub_i64(t2, t2, t1);
1097 tcg_gen_trunc_i64_i32(maclo, t2);
1098 tcg_gen_shri_i64(t2, t2, 32);
1099 tcg_gen_trunc_i64_i32(machi, t2);
1100 tcg_temp_free_i32(t0);
1101 tcg_temp_free_i64(t1);
1102 tcg_temp_free_i64(t2);
1103 }
1104 break;
1105
1106 default:
1107 gen_illegal_exception(dc);
1108 break;
1109 }
1110 }
1111
1112 static void dec_logic(DisasContext *dc, uint32_t insn)
1113 {
1114 uint32_t op0;
1115 uint32_t rd, ra, L6;
1116 op0 = extract32(insn, 6, 2);
1117 rd = extract32(insn, 21, 5);
1118 ra = extract32(insn, 16, 5);
1119 L6 = extract32(insn, 0, 6);
1120
1121 switch (op0) {
1122 case 0x00: /* l.slli */
1123 LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6);
1124 tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1125 break;
1126
1127 case 0x01: /* l.srli */
1128 LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6);
1129 tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1130 break;
1131
1132 case 0x02: /* l.srai */
1133 LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6);
1134 tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break;
1135
1136 case 0x03: /* l.rori */
1137 LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6);
1138 tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1139 break;
1140
1141 default:
1142 gen_illegal_exception(dc);
1143 break;
1144 }
1145 }
1146
1147 static void dec_M(DisasContext *dc, uint32_t insn)
1148 {
1149 uint32_t op0;
1150 uint32_t rd;
1151 uint32_t K16;
1152 op0 = extract32(insn, 16, 1);
1153 rd = extract32(insn, 21, 5);
1154 K16 = extract32(insn, 0, 16);
1155
1156 switch (op0) {
1157 case 0x0: /* l.movhi */
1158 LOG_DIS("l.movhi r%d, %d\n", rd, K16);
1159 tcg_gen_movi_tl(cpu_R[rd], (K16 << 16));
1160 break;
1161
1162 case 0x1: /* l.macrc */
1163 LOG_DIS("l.macrc r%d\n", rd);
1164 tcg_gen_mov_tl(cpu_R[rd], maclo);
1165 tcg_gen_movi_tl(maclo, 0x0);
1166 tcg_gen_movi_tl(machi, 0x0);
1167 break;
1168
1169 default:
1170 gen_illegal_exception(dc);
1171 break;
1172 }
1173 }
1174
1175 static void dec_comp(DisasContext *dc, uint32_t insn)
1176 {
1177 uint32_t op0;
1178 uint32_t ra, rb;
1179
1180 op0 = extract32(insn, 21, 5);
1181 ra = extract32(insn, 16, 5);
1182 rb = extract32(insn, 11, 5);
1183
1184 tcg_gen_movi_i32(env_btaken, 0x0);
1185 /* unsigned integers */
1186 tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]);
1187 tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]);
1188
1189 switch (op0) {
1190 case 0x0: /* l.sfeq */
1191 LOG_DIS("l.sfeq r%d, r%d\n", ra, rb);
1192 tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]);
1193 break;
1194
1195 case 0x1: /* l.sfne */
1196 LOG_DIS("l.sfne r%d, r%d\n", ra, rb);
1197 tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]);
1198 break;
1199
1200 case 0x2: /* l.sfgtu */
1201 LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb);
1202 tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]);
1203 break;
1204
1205 case 0x3: /* l.sfgeu */
1206 LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb);
1207 tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]);
1208 break;
1209
1210 case 0x4: /* l.sfltu */
1211 LOG_DIS("l.sfltu r%d, r%d\n", ra, rb);
1212 tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]);
1213 break;
1214
1215 case 0x5: /* l.sfleu */
1216 LOG_DIS("l.sfleu r%d, r%d\n", ra, rb);
1217 tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]);
1218 break;
1219
1220 case 0xa: /* l.sfgts */
1221 LOG_DIS("l.sfgts r%d, r%d\n", ra, rb);
1222 tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]);
1223 break;
1224
1225 case 0xb: /* l.sfges */
1226 LOG_DIS("l.sfges r%d, r%d\n", ra, rb);
1227 tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]);
1228 break;
1229
1230 case 0xc: /* l.sflts */
1231 LOG_DIS("l.sflts r%d, r%d\n", ra, rb);
1232 tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]);
1233 break;
1234
1235 case 0xd: /* l.sfles */
1236 LOG_DIS("l.sfles r%d, r%d\n", ra, rb);
1237 tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]);
1238 break;
1239
1240 default:
1241 gen_illegal_exception(dc);
1242 break;
1243 }
1244 wb_SR_F();
1245 }
1246
1247 static void dec_compi(DisasContext *dc, uint32_t insn)
1248 {
1249 uint32_t op0;
1250 uint32_t ra, I16;
1251
1252 op0 = extract32(insn, 21, 5);
1253 ra = extract32(insn, 16, 5);
1254 I16 = extract32(insn, 0, 16);
1255
1256 tcg_gen_movi_i32(env_btaken, 0x0);
1257 I16 = sign_extend(I16, 16);
1258
1259 switch (op0) {
1260 case 0x0: /* l.sfeqi */
1261 LOG_DIS("l.sfeqi r%d, %d\n", ra, I16);
1262 tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16);
1263 break;
1264
1265 case 0x1: /* l.sfnei */
1266 LOG_DIS("l.sfnei r%d, %d\n", ra, I16);
1267 tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16);
1268 break;
1269
1270 case 0x2: /* l.sfgtui */
1271 LOG_DIS("l.sfgtui r%d, %d\n", ra, I16);
1272 tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16);
1273 break;
1274
1275 case 0x3: /* l.sfgeui */
1276 LOG_DIS("l.sfgeui r%d, %d\n", ra, I16);
1277 tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16);
1278 break;
1279
1280 case 0x4: /* l.sfltui */
1281 LOG_DIS("l.sfltui r%d, %d\n", ra, I16);
1282 tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16);
1283 break;
1284
1285 case 0x5: /* l.sfleui */
1286 LOG_DIS("l.sfleui r%d, %d\n", ra, I16);
1287 tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16);
1288 break;
1289
1290 case 0xa: /* l.sfgtsi */
1291 LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16);
1292 tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16);
1293 break;
1294
1295 case 0xb: /* l.sfgesi */
1296 LOG_DIS("l.sfgesi r%d, %d\n", ra, I16);
1297 tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16);
1298 break;
1299
1300 case 0xc: /* l.sfltsi */
1301 LOG_DIS("l.sfltsi r%d, %d\n", ra, I16);
1302 tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16);
1303 break;
1304
1305 case 0xd: /* l.sflesi */
1306 LOG_DIS("l.sflesi r%d, %d\n", ra, I16);
1307 tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16);
1308 break;
1309
1310 default:
1311 gen_illegal_exception(dc);
1312 break;
1313 }
1314 wb_SR_F();
1315 }
1316
1317 static void dec_sys(DisasContext *dc, uint32_t insn)
1318 {
1319 uint32_t op0;
1320 #ifdef OPENRISC_DISAS
1321 uint32_t K16;
1322 #endif
1323 op0 = extract32(insn, 16, 8);
1324 #ifdef OPENRISC_DISAS
1325 K16 = extract32(insn, 0, 16);
1326 #endif
1327
1328 switch (op0) {
1329 case 0x000: /* l.sys */
1330 LOG_DIS("l.sys %d\n", K16);
1331 tcg_gen_movi_tl(cpu_pc, dc->pc);
1332 gen_exception(dc, EXCP_SYSCALL);
1333 dc->is_jmp = DISAS_UPDATE;
1334 break;
1335
1336 case 0x100: /* l.trap */
1337 LOG_DIS("l.trap %d\n", K16);
1338 #if defined(CONFIG_USER_ONLY)
1339 return;
1340 #else
1341 if (dc->mem_idx == MMU_USER_IDX) {
1342 gen_illegal_exception(dc);
1343 return;
1344 }
1345 tcg_gen_movi_tl(cpu_pc, dc->pc);
1346 gen_exception(dc, EXCP_TRAP);
1347 #endif
1348 break;
1349
1350 case 0x300: /* l.csync */
1351 LOG_DIS("l.csync\n");
1352 #if defined(CONFIG_USER_ONLY)
1353 return;
1354 #else
1355 if (dc->mem_idx == MMU_USER_IDX) {
1356 gen_illegal_exception(dc);
1357 return;
1358 }
1359 #endif
1360 break;
1361
1362 case 0x200: /* l.msync */
1363 LOG_DIS("l.msync\n");
1364 #if defined(CONFIG_USER_ONLY)
1365 return;
1366 #else
1367 if (dc->mem_idx == MMU_USER_IDX) {
1368 gen_illegal_exception(dc);
1369 return;
1370 }
1371 #endif
1372 break;
1373
1374 case 0x270: /* l.psync */
1375 LOG_DIS("l.psync\n");
1376 #if defined(CONFIG_USER_ONLY)
1377 return;
1378 #else
1379 if (dc->mem_idx == MMU_USER_IDX) {
1380 gen_illegal_exception(dc);
1381 return;
1382 }
1383 #endif
1384 break;
1385
1386 default:
1387 gen_illegal_exception(dc);
1388 break;
1389 }
1390 }
1391
1392 static void dec_float(DisasContext *dc, uint32_t insn)
1393 {
1394 uint32_t op0;
1395 uint32_t ra, rb, rd;
1396 op0 = extract32(insn, 0, 8);
1397 ra = extract32(insn, 16, 5);
1398 rb = extract32(insn, 11, 5);
1399 rd = extract32(insn, 21, 5);
1400
1401 switch (op0) {
1402 case 0x00: /* lf.add.s */
1403 LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb);
1404 gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1405 break;
1406
1407 case 0x01: /* lf.sub.s */
1408 LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb);
1409 gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1410 break;
1411
1412
1413 case 0x02: /* lf.mul.s */
1414 LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb);
1415 if (ra != 0 && rb != 0) {
1416 gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1417 } else {
1418 tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
1419 tcg_gen_movi_i32(cpu_R[rd], 0x0);
1420 }
1421 break;
1422
1423 case 0x03: /* lf.div.s */
1424 LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb);
1425 gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1426 break;
1427
1428 case 0x04: /* lf.itof.s */
1429 LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
1430 gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]);
1431 break;
1432
1433 case 0x05: /* lf.ftoi.s */
1434 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
1435 gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]);
1436 break;
1437
1438 case 0x06: /* lf.rem.s */
1439 LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb);
1440 gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1441 break;
1442
1443 case 0x07: /* lf.madd.s */
1444 LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb);
1445 gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1446 break;
1447
1448 case 0x08: /* lf.sfeq.s */
1449 LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb);
1450 gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1451 break;
1452
1453 case 0x09: /* lf.sfne.s */
1454 LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb);
1455 gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1456 break;
1457
1458 case 0x0a: /* lf.sfgt.s */
1459 LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb);
1460 gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1461 break;
1462
1463 case 0x0b: /* lf.sfge.s */
1464 LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb);
1465 gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1466 break;
1467
1468 case 0x0c: /* lf.sflt.s */
1469 LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb);
1470 gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1471 break;
1472
1473 case 0x0d: /* lf.sfle.s */
1474 LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb);
1475 gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1476 break;
1477
1478 /* not used yet, open it when we need or64. */
1479 /*#ifdef TARGET_OPENRISC64
1480 case 0x10: lf.add.d
1481 LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb);
1482 check_of64s(dc);
1483 gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1484 break;
1485
1486 case 0x11: lf.sub.d
1487 LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb);
1488 check_of64s(dc);
1489 gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1490 break;
1491
1492 case 0x12: lf.mul.d
1493 LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb);
1494 check_of64s(dc);
1495 if (ra != 0 && rb != 0) {
1496 gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1497 } else {
1498 tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
1499 tcg_gen_movi_i64(cpu_R[rd], 0x0);
1500 }
1501 break;
1502
1503 case 0x13: lf.div.d
1504 LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb);
1505 check_of64s(dc);
1506 gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1507 break;
1508
1509 case 0x14: lf.itof.d
1510 LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
1511 check_of64s(dc);
1512 gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]);
1513 break;
1514
1515 case 0x15: lf.ftoi.d
1516 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
1517 check_of64s(dc);
1518 gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]);
1519 break;
1520
1521 case 0x16: lf.rem.d
1522 LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb);
1523 check_of64s(dc);
1524 gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1525 break;
1526
1527 case 0x17: lf.madd.d
1528 LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb);
1529 check_of64s(dc);
1530 gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1531 break;
1532
1533 case 0x18: lf.sfeq.d
1534 LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb);
1535 check_of64s(dc);
1536 gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1537 break;
1538
1539 case 0x1a: lf.sfgt.d
1540 LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb);
1541 check_of64s(dc);
1542 gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1543 break;
1544
1545 case 0x1b: lf.sfge.d
1546 LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb);
1547 check_of64s(dc);
1548 gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1549 break;
1550
1551 case 0x19: lf.sfne.d
1552 LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb);
1553 check_of64s(dc);
1554 gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1555 break;
1556
1557 case 0x1c: lf.sflt.d
1558 LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb);
1559 check_of64s(dc);
1560 gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1561 break;
1562
1563 case 0x1d: lf.sfle.d
1564 LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb);
1565 check_of64s(dc);
1566 gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1567 break;
1568 #endif*/
1569
1570 default:
1571 gen_illegal_exception(dc);
1572 break;
1573 }
1574 wb_SR_F();
1575 }
1576
1577 static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu)
1578 {
1579 uint32_t op0;
1580 uint32_t insn;
1581 insn = cpu_ldl_code(&cpu->env, dc->pc);
1582 op0 = extract32(insn, 26, 6);
1583
1584 switch (op0) {
1585 case 0x06:
1586 dec_M(dc, insn);
1587 break;
1588
1589 case 0x08:
1590 dec_sys(dc, insn);
1591 break;
1592
1593 case 0x2e:
1594 dec_logic(dc, insn);
1595 break;
1596
1597 case 0x2f:
1598 dec_compi(dc, insn);
1599 break;
1600
1601 case 0x31:
1602 dec_mac(dc, insn);
1603 break;
1604
1605 case 0x32:
1606 dec_float(dc, insn);
1607 break;
1608
1609 case 0x38:
1610 dec_calc(dc, insn);
1611 break;
1612
1613 case 0x39:
1614 dec_comp(dc, insn);
1615 break;
1616
1617 default:
1618 dec_misc(dc, insn);
1619 break;
1620 }
1621 }
1622
1623 static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc)
1624 {
1625 CPUState *cs = CPU(cpu);
1626 CPUBreakpoint *bp;
1627
1628 if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
1629 QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
1630 if (bp->pc == dc->pc) {
1631 tcg_gen_movi_tl(cpu_pc, dc->pc);
1632 gen_exception(dc, EXCP_DEBUG);
1633 dc->is_jmp = DISAS_UPDATE;
1634 }
1635 }
1636 }
1637 }
1638
1639 static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
1640 TranslationBlock *tb,
1641 int search_pc)
1642 {
1643 CPUState *cs = CPU(cpu);
1644 struct DisasContext ctx, *dc = &ctx;
1645 uint16_t *gen_opc_end;
1646 uint32_t pc_start;
1647 int j, k;
1648 uint32_t next_page_start;
1649 int num_insns;
1650 int max_insns;
1651
1652 pc_start = tb->pc;
1653 dc->tb = tb;
1654
1655 gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
1656 dc->is_jmp = DISAS_NEXT;
1657 dc->ppc = pc_start;
1658 dc->pc = pc_start;
1659 dc->flags = cpu->env.cpucfgr;
1660 dc->mem_idx = cpu_mmu_index(&cpu->env);
1661 dc->synced_flags = dc->tb_flags = tb->flags;
1662 dc->delayed_branch = !!(dc->tb_flags & D_FLAG);
1663 dc->singlestep_enabled = cs->singlestep_enabled;
1664 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
1665 qemu_log("-----------------------------------------\n");
1666 log_cpu_state(CPU(cpu), 0);
1667 }
1668
1669 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
1670 k = -1;
1671 num_insns = 0;
1672 max_insns = tb->cflags & CF_COUNT_MASK;
1673
1674 if (max_insns == 0) {
1675 max_insns = CF_COUNT_MASK;
1676 }
1677
1678 gen_tb_start();
1679
1680 do {
1681 check_breakpoint(cpu, dc);
1682 if (search_pc) {
1683 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
1684 if (k < j) {
1685 k++;
1686 while (k < j) {
1687 tcg_ctx.gen_opc_instr_start[k++] = 0;
1688 }
1689 }
1690 tcg_ctx.gen_opc_pc[k] = dc->pc;
1691 tcg_ctx.gen_opc_instr_start[k] = 1;
1692 tcg_ctx.gen_opc_icount[k] = num_insns;
1693 }
1694
1695 if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
1696 tcg_gen_debug_insn_start(dc->pc);
1697 }
1698
1699 if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
1700 gen_io_start();
1701 }
1702 dc->ppc = dc->pc - 4;
1703 dc->npc = dc->pc + 4;
1704 tcg_gen_movi_tl(cpu_ppc, dc->ppc);
1705 tcg_gen_movi_tl(cpu_npc, dc->npc);
1706 disas_openrisc_insn(dc, cpu);
1707 dc->pc = dc->npc;
1708 num_insns++;
1709 /* delay slot */
1710 if (dc->delayed_branch) {
1711 dc->delayed_branch--;
1712 if (!dc->delayed_branch) {
1713 dc->tb_flags &= ~D_FLAG;
1714 gen_sync_flags(dc);
1715 tcg_gen_mov_tl(cpu_pc, jmp_pc);
1716 tcg_gen_mov_tl(cpu_npc, jmp_pc);
1717 tcg_gen_movi_tl(jmp_pc, 0);
1718 tcg_gen_exit_tb(0);
1719 dc->is_jmp = DISAS_JUMP;
1720 break;
1721 }
1722 }
1723 } while (!dc->is_jmp
1724 && tcg_ctx.gen_opc_ptr < gen_opc_end
1725 && !cs->singlestep_enabled
1726 && !singlestep
1727 && (dc->pc < next_page_start)
1728 && num_insns < max_insns);
1729
1730 if (tb->cflags & CF_LAST_IO) {
1731 gen_io_end();
1732 }
1733 if (dc->is_jmp == DISAS_NEXT) {
1734 dc->is_jmp = DISAS_UPDATE;
1735 tcg_gen_movi_tl(cpu_pc, dc->pc);
1736 }
1737 if (unlikely(cs->singlestep_enabled)) {
1738 if (dc->is_jmp == DISAS_NEXT) {
1739 tcg_gen_movi_tl(cpu_pc, dc->pc);
1740 }
1741 gen_exception(dc, EXCP_DEBUG);
1742 } else {
1743 switch (dc->is_jmp) {
1744 case DISAS_NEXT:
1745 gen_goto_tb(dc, 0, dc->pc);
1746 break;
1747 default:
1748 case DISAS_JUMP:
1749 break;
1750 case DISAS_UPDATE:
1751 /* indicate that the hash table must be used
1752 to find the next TB */
1753 tcg_gen_exit_tb(0);
1754 break;
1755 case DISAS_TB_JUMP:
1756 /* nothing more to generate */
1757 break;
1758 }
1759 }
1760
1761 gen_tb_end(tb, num_insns);
1762 *tcg_ctx.gen_opc_ptr = INDEX_op_end;
1763 if (search_pc) {
1764 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
1765 k++;
1766 while (k <= j) {
1767 tcg_ctx.gen_opc_instr_start[k++] = 0;
1768 }
1769 } else {
1770 tb->size = dc->pc - pc_start;
1771 tb->icount = num_insns;
1772 }
1773
1774 #ifdef DEBUG_DISAS
1775 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
1776 qemu_log("\n");
1777 log_target_disas(&cpu->env, pc_start, dc->pc - pc_start, 0);
1778 qemu_log("\nisize=%d osize=%td\n",
1779 dc->pc - pc_start, tcg_ctx.gen_opc_ptr -
1780 tcg_ctx.gen_opc_buf);
1781 }
1782 #endif
1783 }
1784
1785 void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb)
1786 {
1787 gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 0);
1788 }
1789
1790 void gen_intermediate_code_pc(CPUOpenRISCState *env,
1791 struct TranslationBlock *tb)
1792 {
1793 gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 1);
1794 }
1795
1796 void openrisc_cpu_dump_state(CPUState *cs, FILE *f,
1797 fprintf_function cpu_fprintf,
1798 int flags)
1799 {
1800 OpenRISCCPU *cpu = OPENRISC_CPU(cs);
1801 CPUOpenRISCState *env = &cpu->env;
1802 int i;
1803
1804 cpu_fprintf(f, "PC=%08x\n", env->pc);
1805 for (i = 0; i < 32; ++i) {
1806 cpu_fprintf(f, "R%02d=%08x%c", i, env->gpr[i],
1807 (i % 4) == 3 ? '\n' : ' ');
1808 }
1809 }
1810
1811 void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb,
1812 int pc_pos)
1813 {
1814 env->pc = tcg_ctx.gen_opc_pc[pc_pos];
1815 }
AR7 emulation for QEMU