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[qemu.git] / target-openrisc / translate.c
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
30 #include "helper.h"
31 #define GEN_HELPER 1
32 #include "helper.h"
33
34 #define OPENRISC_DISAS
35
36 #ifdef OPENRISC_DISAS
37 # define LOG_DIS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
38 #else
39 # define LOG_DIS(...) do { } while (0)
40 #endif
41
42 typedef struct DisasContext {
43 TranslationBlock *tb;
44 target_ulong pc, ppc, npc;
45 uint32_t tb_flags, synced_flags, flags;
46 uint32_t is_jmp;
47 uint32_t mem_idx;
48 int singlestep_enabled;
49 uint32_t delayed_branch;
50 } DisasContext;
51
52 static TCGv_ptr cpu_env;
53 static TCGv cpu_sr;
54 static TCGv cpu_R[32];
55 static TCGv cpu_pc;
56 static TCGv jmp_pc; /* l.jr/l.jalr temp pc */
57 static TCGv cpu_npc;
58 static TCGv cpu_ppc;
59 static TCGv_i32 env_btaken; /* bf/bnf , F flag taken */
60 static TCGv_i32 fpcsr;
61 static TCGv machi, maclo;
62 static TCGv fpmaddhi, fpmaddlo;
63 static TCGv_i32 env_flags;
64 #include "exec/gen-icount.h"
65
66 void openrisc_translate_init(void)
67 {
68 static const char * const regnames[] = {
69 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
70 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
71 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
72 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
73 };
74 int i;
75
76 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
77 cpu_sr = tcg_global_mem_new(TCG_AREG0,
78 offsetof(CPUOpenRISCState, sr), "sr");
79 env_flags = tcg_global_mem_new_i32(TCG_AREG0,
80 offsetof(CPUOpenRISCState, flags),
81 "flags");
82 cpu_pc = tcg_global_mem_new(TCG_AREG0,
83 offsetof(CPUOpenRISCState, pc), "pc");
84 cpu_npc = tcg_global_mem_new(TCG_AREG0,
85 offsetof(CPUOpenRISCState, npc), "npc");
86 cpu_ppc = tcg_global_mem_new(TCG_AREG0,
87 offsetof(CPUOpenRISCState, ppc), "ppc");
88 jmp_pc = tcg_global_mem_new(TCG_AREG0,
89 offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc");
90 env_btaken = tcg_global_mem_new_i32(TCG_AREG0,
91 offsetof(CPUOpenRISCState, btaken),
92 "btaken");
93 fpcsr = tcg_global_mem_new_i32(TCG_AREG0,
94 offsetof(CPUOpenRISCState, fpcsr),
95 "fpcsr");
96 machi = tcg_global_mem_new(TCG_AREG0,
97 offsetof(CPUOpenRISCState, machi),
98 "machi");
99 maclo = tcg_global_mem_new(TCG_AREG0,
100 offsetof(CPUOpenRISCState, maclo),
101 "maclo");
102 fpmaddhi = tcg_global_mem_new(TCG_AREG0,
103 offsetof(CPUOpenRISCState, fpmaddhi),
104 "fpmaddhi");
105 fpmaddlo = tcg_global_mem_new(TCG_AREG0,
106 offsetof(CPUOpenRISCState, fpmaddlo),
107 "fpmaddlo");
108 for (i = 0; i < 32; i++) {
109 cpu_R[i] = tcg_global_mem_new(TCG_AREG0,
110 offsetof(CPUOpenRISCState, gpr[i]),
111 regnames[i]);
112 }
113 #define GEN_HELPER 2
114 #include "helper.h"
115 }
116
117 /* Writeback SR_F transaltion-space to execution-space. */
118 static inline void wb_SR_F(void)
119 {
120 int label;
121
122 label = gen_new_label();
123 tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F);
124 tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label);
125 tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F);
126 gen_set_label(label);
127 }
128
129 static inline int zero_extend(unsigned int val, int width)
130 {
131 return val & ((1 << width) - 1);
132 }
133
134 static inline int sign_extend(unsigned int val, int width)
135 {
136 int sval;
137
138 /* LSL */
139 val <<= TARGET_LONG_BITS - width;
140 sval = val;
141 /* ASR. */
142 sval >>= TARGET_LONG_BITS - width;
143 return sval;
144 }
145
146 static inline void gen_sync_flags(DisasContext *dc)
147 {
148 /* Sync the tb dependent flag between translate and runtime. */
149 if (dc->tb_flags != dc->synced_flags) {
150 tcg_gen_movi_tl(env_flags, dc->tb_flags);
151 dc->synced_flags = dc->tb_flags;
152 }
153 }
154
155 static void gen_exception(DisasContext *dc, unsigned int excp)
156 {
157 TCGv_i32 tmp = tcg_const_i32(excp);
158 gen_helper_exception(cpu_env, tmp);
159 tcg_temp_free_i32(tmp);
160 }
161
162 static void gen_illegal_exception(DisasContext *dc)
163 {
164 tcg_gen_movi_tl(cpu_pc, dc->pc);
165 gen_exception(dc, EXCP_ILLEGAL);
166 dc->is_jmp = DISAS_UPDATE;
167 }
168
169 /* not used yet, open it when we need or64. */
170 /*#ifdef TARGET_OPENRISC64
171 static void check_ob64s(DisasContext *dc)
172 {
173 if (!(dc->flags & CPUCFGR_OB64S)) {
174 gen_illegal_exception(dc);
175 }
176 }
177
178 static void check_of64s(DisasContext *dc)
179 {
180 if (!(dc->flags & CPUCFGR_OF64S)) {
181 gen_illegal_exception(dc);
182 }
183 }
184
185 static void check_ov64s(DisasContext *dc)
186 {
187 if (!(dc->flags & CPUCFGR_OV64S)) {
188 gen_illegal_exception(dc);
189 }
190 }
191 #endif*/
192
193 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
194 {
195 TranslationBlock *tb;
196 tb = dc->tb;
197 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
198 likely(!dc->singlestep_enabled)) {
199 tcg_gen_movi_tl(cpu_pc, dest);
200 tcg_gen_goto_tb(n);
201 tcg_gen_exit_tb((tcg_target_long)tb + n);
202 } else {
203 tcg_gen_movi_tl(cpu_pc, dest);
204 if (dc->singlestep_enabled) {
205 gen_exception(dc, EXCP_DEBUG);
206 }
207 tcg_gen_exit_tb(0);
208 }
209 }
210
211 static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0)
212 {
213 target_ulong tmp_pc;
214 int lab = gen_new_label();
215 TCGv sr_f = tcg_temp_new();
216 /* N26, 26bits imm */
217 tmp_pc = sign_extend((imm<<2), 26) + dc->pc;
218 tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
219
220 if (op0 == 0x00) { /* l.j */
221 tcg_gen_movi_tl(jmp_pc, tmp_pc);
222 } else if (op0 == 0x01) { /* l.jal */
223 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
224 tcg_gen_movi_tl(jmp_pc, tmp_pc);
225 } else if (op0 == 0x03) { /* l.bnf */
226 tcg_gen_movi_tl(jmp_pc, dc->pc+8);
227 tcg_gen_brcondi_i32(TCG_COND_EQ, sr_f, SR_F, lab);
228 tcg_gen_movi_tl(jmp_pc, tmp_pc);
229 gen_set_label(lab);
230 } else if (op0 == 0x04) { /* l.bf */
231 tcg_gen_movi_tl(jmp_pc, dc->pc+8);
232 tcg_gen_brcondi_i32(TCG_COND_NE, sr_f, SR_F, lab);
233 tcg_gen_movi_tl(jmp_pc, tmp_pc);
234 gen_set_label(lab);
235 } else if (op0 == 0x11) { /* l.jr */
236 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
237 } else if (op0 == 0x12) { /* l.jalr */
238 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
239 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
240 } else {
241 gen_illegal_exception(dc);
242 }
243
244 tcg_temp_free(sr_f);
245 dc->delayed_branch = 2;
246 dc->tb_flags |= D_FLAG;
247 gen_sync_flags(dc);
248 }
249
250 static void dec_calc(DisasContext *dc, uint32_t insn)
251 {
252 uint32_t op0, op1, op2;
253 uint32_t ra, rb, rd;
254 op0 = extract32(insn, 0, 4);
255 op1 = extract32(insn, 8, 2);
256 op2 = extract32(insn, 6, 2);
257 ra = extract32(insn, 16, 5);
258 rb = extract32(insn, 11, 5);
259 rd = extract32(insn, 21, 5);
260
261 switch (op0) {
262 case 0x0000:
263 switch (op1) {
264 case 0x00: /* l.add */
265 LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb);
266 {
267 int lab = gen_new_label();
268 TCGv_i64 ta = tcg_temp_new_i64();
269 TCGv_i64 tb = tcg_temp_new_i64();
270 TCGv_i64 td = tcg_temp_local_new_i64();
271 TCGv_i32 res = tcg_temp_local_new_i32();
272 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
273 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
274 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
275 tcg_gen_add_i64(td, ta, tb);
276 tcg_gen_trunc_i64_i32(res, td);
277 tcg_gen_shri_i64(td, td, 31);
278 tcg_gen_andi_i64(td, td, 0x3);
279 /* Jump to lab when no overflow. */
280 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
281 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
282 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
283 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
284 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
285 gen_exception(dc, EXCP_RANGE);
286 gen_set_label(lab);
287 tcg_gen_mov_i32(cpu_R[rd], res);
288 tcg_temp_free_i64(ta);
289 tcg_temp_free_i64(tb);
290 tcg_temp_free_i64(td);
291 tcg_temp_free_i32(res);
292 tcg_temp_free_i32(sr_ove);
293 }
294 break;
295 default:
296 gen_illegal_exception(dc);
297 break;
298 }
299 break;
300
301 case 0x0001: /* l.addc */
302 switch (op1) {
303 case 0x00:
304 LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb);
305 {
306 int lab = gen_new_label();
307 TCGv_i64 ta = tcg_temp_new_i64();
308 TCGv_i64 tb = tcg_temp_new_i64();
309 TCGv_i64 tcy = tcg_temp_local_new_i64();
310 TCGv_i64 td = tcg_temp_local_new_i64();
311 TCGv_i32 res = tcg_temp_local_new_i32();
312 TCGv_i32 sr_cy = tcg_temp_local_new_i32();
313 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
314 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
315 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
316 tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
317 tcg_gen_extu_i32_i64(tcy, sr_cy);
318 tcg_gen_shri_i64(tcy, tcy, 10);
319 tcg_gen_add_i64(td, ta, tb);
320 tcg_gen_add_i64(td, td, tcy);
321 tcg_gen_trunc_i64_i32(res, td);
322 tcg_gen_shri_i64(td, td, 32);
323 tcg_gen_andi_i64(td, td, 0x3);
324 /* Jump to lab when no overflow. */
325 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
326 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
327 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
328 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
329 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
330 gen_exception(dc, EXCP_RANGE);
331 gen_set_label(lab);
332 tcg_gen_mov_i32(cpu_R[rd], res);
333 tcg_temp_free_i64(ta);
334 tcg_temp_free_i64(tb);
335 tcg_temp_free_i64(tcy);
336 tcg_temp_free_i64(td);
337 tcg_temp_free_i32(res);
338 tcg_temp_free_i32(sr_cy);
339 tcg_temp_free_i32(sr_ove);
340 }
341 break;
342 default:
343 gen_illegal_exception(dc);
344 break;
345 }
346 break;
347
348 case 0x0002: /* l.sub */
349 switch (op1) {
350 case 0x00:
351 LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb);
352 {
353 int lab = gen_new_label();
354 TCGv_i64 ta = tcg_temp_new_i64();
355 TCGv_i64 tb = tcg_temp_new_i64();
356 TCGv_i64 td = tcg_temp_local_new_i64();
357 TCGv_i32 res = tcg_temp_local_new_i32();
358 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
359
360 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
361 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
362 tcg_gen_sub_i64(td, ta, tb);
363 tcg_gen_trunc_i64_i32(res, td);
364 tcg_gen_shri_i64(td, td, 31);
365 tcg_gen_andi_i64(td, td, 0x3);
366 /* Jump to lab when no overflow. */
367 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
368 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
369 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
370 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
371 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
372 gen_exception(dc, EXCP_RANGE);
373 gen_set_label(lab);
374 tcg_gen_mov_i32(cpu_R[rd], res);
375 tcg_temp_free_i64(ta);
376 tcg_temp_free_i64(tb);
377 tcg_temp_free_i64(td);
378 tcg_temp_free_i32(res);
379 tcg_temp_free_i32(sr_ove);
380 }
381 break;
382 default:
383 gen_illegal_exception(dc);
384 break;
385 }
386 break;
387
388 case 0x0003: /* l.and */
389 switch (op1) {
390 case 0x00:
391 LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb);
392 tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
393 break;
394 default:
395 gen_illegal_exception(dc);
396 break;
397 }
398 break;
399
400 case 0x0004: /* l.or */
401 switch (op1) {
402 case 0x00:
403 LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb);
404 tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
405 break;
406 default:
407 gen_illegal_exception(dc);
408 break;
409 }
410 break;
411
412 case 0x0005:
413 switch (op1) {
414 case 0x00: /* l.xor */
415 LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb);
416 tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
417 break;
418 default:
419 gen_illegal_exception(dc);
420 break;
421 }
422 break;
423
424 case 0x0006:
425 switch (op1) {
426 case 0x03: /* l.mul */
427 LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb);
428 if (ra != 0 && rb != 0) {
429 gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
430 } else {
431 tcg_gen_movi_tl(cpu_R[rd], 0x0);
432 }
433 break;
434 default:
435 gen_illegal_exception(dc);
436 break;
437 }
438 break;
439
440 case 0x0009:
441 switch (op1) {
442 case 0x03: /* l.div */
443 LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb);
444 {
445 int lab0 = gen_new_label();
446 int lab1 = gen_new_label();
447 int lab2 = gen_new_label();
448 int lab3 = gen_new_label();
449 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
450 if (rb == 0) {
451 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
452 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
453 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
454 gen_exception(dc, EXCP_RANGE);
455 gen_set_label(lab0);
456 } else {
457 tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb],
458 0x00000000, lab1);
459 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra],
460 0x80000000, lab2);
461 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
462 0xffffffff, lab2);
463 gen_set_label(lab1);
464 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
465 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
466 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3);
467 gen_exception(dc, EXCP_RANGE);
468 gen_set_label(lab2);
469 tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
470 gen_set_label(lab3);
471 }
472 tcg_temp_free_i32(sr_ove);
473 }
474 break;
475
476 default:
477 gen_illegal_exception(dc);
478 break;
479 }
480 break;
481
482 case 0x000a:
483 switch (op1) {
484 case 0x03: /* l.divu */
485 LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb);
486 {
487 int lab0 = gen_new_label();
488 int lab1 = gen_new_label();
489 int lab2 = gen_new_label();
490 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
491 if (rb == 0) {
492 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
493 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
494 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
495 gen_exception(dc, EXCP_RANGE);
496 gen_set_label(lab0);
497 } else {
498 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
499 0x00000000, lab1);
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, lab2);
503 gen_exception(dc, EXCP_RANGE);
504 gen_set_label(lab1);
505 tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
506 gen_set_label(lab2);
507 }
508 tcg_temp_free_i32(sr_ove);
509 }
510 break;
511
512 default:
513 gen_illegal_exception(dc);
514 break;
515 }
516 break;
517
518 case 0x000b:
519 switch (op1) {
520 case 0x03: /* l.mulu */
521 LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb);
522 if (rb != 0 && ra != 0) {
523 TCGv_i64 result = tcg_temp_local_new_i64();
524 TCGv_i64 tra = tcg_temp_local_new_i64();
525 TCGv_i64 trb = tcg_temp_local_new_i64();
526 TCGv_i64 high = tcg_temp_new_i64();
527 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
528 int lab = gen_new_label();
529 /* Calculate the each result. */
530 tcg_gen_extu_i32_i64(tra, cpu_R[ra]);
531 tcg_gen_extu_i32_i64(trb, cpu_R[rb]);
532 tcg_gen_mul_i64(result, tra, trb);
533 tcg_temp_free_i64(tra);
534 tcg_temp_free_i64(trb);
535 tcg_gen_shri_i64(high, result, TARGET_LONG_BITS);
536 /* Overflow or not. */
537 tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab);
538 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
539 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
540 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab);
541 gen_exception(dc, EXCP_RANGE);
542 gen_set_label(lab);
543 tcg_temp_free_i64(high);
544 tcg_gen_trunc_i64_tl(cpu_R[rd], result);
545 tcg_temp_free_i64(result);
546 tcg_temp_free_i32(sr_ove);
547 } else {
548 tcg_gen_movi_tl(cpu_R[rd], 0);
549 }
550 break;
551
552 default:
553 gen_illegal_exception(dc);
554 break;
555 }
556 break;
557
558 case 0x000e:
559 switch (op1) {
560 case 0x00: /* l.cmov */
561 LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb);
562 {
563 int lab = gen_new_label();
564 TCGv res = tcg_temp_local_new();
565 TCGv sr_f = tcg_temp_new();
566 tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
567 tcg_gen_mov_tl(res, cpu_R[rb]);
568 tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab);
569 tcg_gen_mov_tl(res, cpu_R[ra]);
570 gen_set_label(lab);
571 tcg_gen_mov_tl(cpu_R[rd], res);
572 tcg_temp_free(sr_f);
573 tcg_temp_free(res);
574 }
575 break;
576
577 default:
578 gen_illegal_exception(dc);
579 break;
580 }
581 break;
582
583 case 0x000f:
584 switch (op1) {
585 case 0x00: /* l.ff1 */
586 LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb);
587 gen_helper_ff1(cpu_R[rd], cpu_R[ra]);
588 break;
589 case 0x01: /* l.fl1 */
590 LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb);
591 gen_helper_fl1(cpu_R[rd], cpu_R[ra]);
592 break;
593
594 default:
595 gen_illegal_exception(dc);
596 break;
597 }
598 break;
599
600 case 0x0008:
601 switch (op1) {
602 case 0x00:
603 switch (op2) {
604 case 0x00: /* l.sll */
605 LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb);
606 tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
607 break;
608 case 0x01: /* l.srl */
609 LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb);
610 tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
611 break;
612 case 0x02: /* l.sra */
613 LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb);
614 tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
615 break;
616 case 0x03: /* l.ror */
617 LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb);
618 tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
619 break;
620
621 default:
622 gen_illegal_exception(dc);
623 break;
624 }
625 break;
626
627 default:
628 gen_illegal_exception(dc);
629 break;
630 }
631 break;
632
633 case 0x000c:
634 switch (op1) {
635 case 0x00:
636 switch (op2) {
637 case 0x00: /* l.exths */
638 LOG_DIS("l.exths r%d, r%d\n", rd, ra);
639 tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]);
640 break;
641 case 0x01: /* l.extbs */
642 LOG_DIS("l.extbs r%d, r%d\n", rd, ra);
643 tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]);
644 break;
645 case 0x02: /* l.exthz */
646 LOG_DIS("l.exthz r%d, r%d\n", rd, ra);
647 tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]);
648 break;
649 case 0x03: /* l.extbz */
650 LOG_DIS("l.extbz r%d, r%d\n", rd, ra);
651 tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]);
652 break;
653
654 default:
655 gen_illegal_exception(dc);
656 break;
657 }
658 break;
659
660 default:
661 gen_illegal_exception(dc);
662 break;
663 }
664 break;
665
666 case 0x000d:
667 switch (op1) {
668 case 0x00:
669 switch (op2) {
670 case 0x00: /* l.extws */
671 LOG_DIS("l.extws r%d, r%d\n", rd, ra);
672 tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]);
673 break;
674 case 0x01: /* l.extwz */
675 LOG_DIS("l.extwz r%d, r%d\n", rd, ra);
676 tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]);
677 break;
678
679 default:
680 gen_illegal_exception(dc);
681 break;
682 }
683 break;
684
685 default:
686 gen_illegal_exception(dc);
687 break;
688 }
689 break;
690
691 default:
692 gen_illegal_exception(dc);
693 break;
694 }
695 }
696
697 static void dec_misc(DisasContext *dc, uint32_t insn)
698 {
699 uint32_t op0, op1;
700 uint32_t ra, rb, rd;
701 #ifdef OPENRISC_DISAS
702 uint32_t L6, K5;
703 #endif
704 uint32_t I16, I5, I11, N26, tmp;
705 op0 = extract32(insn, 26, 6);
706 op1 = extract32(insn, 24, 2);
707 ra = extract32(insn, 16, 5);
708 rb = extract32(insn, 11, 5);
709 rd = extract32(insn, 21, 5);
710 #ifdef OPENRISC_DISAS
711 L6 = extract32(insn, 5, 6);
712 K5 = extract32(insn, 0, 5);
713 #endif
714 I16 = extract32(insn, 0, 16);
715 I5 = extract32(insn, 21, 5);
716 I11 = extract32(insn, 0, 11);
717 N26 = extract32(insn, 0, 26);
718 tmp = (I5<<11) + I11;
719
720 switch (op0) {
721 case 0x00: /* l.j */
722 LOG_DIS("l.j %d\n", N26);
723 gen_jump(dc, N26, 0, op0);
724 break;
725
726 case 0x01: /* l.jal */
727 LOG_DIS("l.jal %d\n", N26);
728 gen_jump(dc, N26, 0, op0);
729 break;
730
731 case 0x03: /* l.bnf */
732 LOG_DIS("l.bnf %d\n", N26);
733 gen_jump(dc, N26, 0, op0);
734 break;
735
736 case 0x04: /* l.bf */
737 LOG_DIS("l.bf %d\n", N26);
738 gen_jump(dc, N26, 0, op0);
739 break;
740
741 case 0x05:
742 switch (op1) {
743 case 0x01: /* l.nop */
744 LOG_DIS("l.nop %d\n", I16);
745 break;
746
747 default:
748 gen_illegal_exception(dc);
749 break;
750 }
751 break;
752
753 case 0x11: /* l.jr */
754 LOG_DIS("l.jr r%d\n", rb);
755 gen_jump(dc, 0, rb, op0);
756 break;
757
758 case 0x12: /* l.jalr */
759 LOG_DIS("l.jalr r%d\n", rb);
760 gen_jump(dc, 0, rb, op0);
761 break;
762
763 case 0x13: /* l.maci */
764 LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11);
765 {
766 TCGv_i64 t1 = tcg_temp_new_i64();
767 TCGv_i64 t2 = tcg_temp_new_i64();
768 TCGv_i32 dst = tcg_temp_new_i32();
769 TCGv ttmp = tcg_const_tl(tmp);
770 tcg_gen_mul_tl(dst, cpu_R[ra], ttmp);
771 tcg_gen_ext_i32_i64(t1, dst);
772 tcg_gen_concat_i32_i64(t2, maclo, machi);
773 tcg_gen_add_i64(t2, t2, t1);
774 tcg_gen_trunc_i64_i32(maclo, t2);
775 tcg_gen_shri_i64(t2, t2, 32);
776 tcg_gen_trunc_i64_i32(machi, t2);
777 tcg_temp_free_i32(dst);
778 tcg_temp_free(ttmp);
779 tcg_temp_free_i64(t1);
780 tcg_temp_free_i64(t2);
781 }
782 break;
783
784 case 0x09: /* l.rfe */
785 LOG_DIS("l.rfe\n");
786 {
787 #if defined(CONFIG_USER_ONLY)
788 return;
789 #else
790 if (dc->mem_idx == MMU_USER_IDX) {
791 gen_illegal_exception(dc);
792 return;
793 }
794 gen_helper_rfe(cpu_env);
795 dc->is_jmp = DISAS_UPDATE;
796 #endif
797 }
798 break;
799
800 case 0x1c: /* l.cust1 */
801 LOG_DIS("l.cust1\n");
802 break;
803
804 case 0x1d: /* l.cust2 */
805 LOG_DIS("l.cust2\n");
806 break;
807
808 case 0x1e: /* l.cust3 */
809 LOG_DIS("l.cust3\n");
810 break;
811
812 case 0x1f: /* l.cust4 */
813 LOG_DIS("l.cust4\n");
814 break;
815
816 case 0x3c: /* l.cust5 */
817 LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5);
818 break;
819
820 case 0x3d: /* l.cust6 */
821 LOG_DIS("l.cust6\n");
822 break;
823
824 case 0x3e: /* l.cust7 */
825 LOG_DIS("l.cust7\n");
826 break;
827
828 case 0x3f: /* l.cust8 */
829 LOG_DIS("l.cust8\n");
830 break;
831
832 /* not used yet, open it when we need or64. */
833 /*#ifdef TARGET_OPENRISC64
834 case 0x20: l.ld
835 LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16);
836 {
837 check_ob64s(dc);
838 TCGv_i64 t0 = tcg_temp_new_i64();
839 tcg_gen_addi_i64(t0, cpu_R[ra], sign_extend(I16, 16));
840 tcg_gen_qemu_ld64(cpu_R[rd], t0, dc->mem_idx);
841 tcg_temp_free_i64(t0);
842 }
843 break;
844 #endif*/
845
846 case 0x21: /* l.lwz */
847 LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16);
848 {
849 TCGv t0 = tcg_temp_new();
850 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
851 tcg_gen_qemu_ld32u(cpu_R[rd], t0, dc->mem_idx);
852 tcg_temp_free(t0);
853 }
854 break;
855
856 case 0x22: /* l.lws */
857 LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16);
858 {
859 TCGv t0 = tcg_temp_new();
860 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
861 tcg_gen_qemu_ld32s(cpu_R[rd], t0, dc->mem_idx);
862 tcg_temp_free(t0);
863 }
864 break;
865
866 case 0x23: /* l.lbz */
867 LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16);
868 {
869 TCGv t0 = tcg_temp_new();
870 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
871 tcg_gen_qemu_ld8u(cpu_R[rd], t0, dc->mem_idx);
872 tcg_temp_free(t0);
873 }
874 break;
875
876 case 0x24: /* l.lbs */
877 LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16);
878 {
879 TCGv t0 = tcg_temp_new();
880 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
881 tcg_gen_qemu_ld8s(cpu_R[rd], t0, dc->mem_idx);
882 tcg_temp_free(t0);
883 }
884 break;
885
886 case 0x25: /* l.lhz */
887 LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16);
888 {
889 TCGv t0 = tcg_temp_new();
890 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
891 tcg_gen_qemu_ld16u(cpu_R[rd], t0, dc->mem_idx);
892 tcg_temp_free(t0);
893 }
894 break;
895
896 case 0x26: /* l.lhs */
897 LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16);
898 {
899 TCGv t0 = tcg_temp_new();
900 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
901 tcg_gen_qemu_ld16s(cpu_R[rd], t0, dc->mem_idx);
902 tcg_temp_free(t0);
903 }
904 break;
905
906 case 0x27: /* l.addi */
907 LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16);
908 {
909 int lab = gen_new_label();
910 TCGv_i64 ta = tcg_temp_new_i64();
911 TCGv_i64 td = tcg_temp_local_new_i64();
912 TCGv_i32 res = tcg_temp_local_new_i32();
913 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
914 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
915 tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
916 tcg_gen_trunc_i64_i32(res, td);
917 tcg_gen_shri_i64(td, td, 32);
918 tcg_gen_andi_i64(td, td, 0x3);
919 /* Jump to lab when no overflow. */
920 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
921 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
922 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
923 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
924 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
925 gen_exception(dc, EXCP_RANGE);
926 gen_set_label(lab);
927 tcg_gen_mov_i32(cpu_R[rd], res);
928 tcg_temp_free_i64(ta);
929 tcg_temp_free_i64(td);
930 tcg_temp_free_i32(res);
931 tcg_temp_free_i32(sr_ove);
932 }
933 break;
934
935 case 0x28: /* l.addic */
936 LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16);
937 {
938 int lab = gen_new_label();
939 TCGv_i64 ta = tcg_temp_new_i64();
940 TCGv_i64 td = tcg_temp_local_new_i64();
941 TCGv_i64 tcy = tcg_temp_local_new_i64();
942 TCGv_i32 res = tcg_temp_local_new_i32();
943 TCGv_i32 sr_cy = tcg_temp_local_new_i32();
944 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
945 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
946 tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
947 tcg_gen_shri_i32(sr_cy, sr_cy, 10);
948 tcg_gen_extu_i32_i64(tcy, sr_cy);
949 tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
950 tcg_gen_add_i64(td, td, tcy);
951 tcg_gen_trunc_i64_i32(res, td);
952 tcg_gen_shri_i64(td, td, 32);
953 tcg_gen_andi_i64(td, td, 0x3);
954 /* Jump to lab when no overflow. */
955 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
956 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
957 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
958 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
959 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
960 gen_exception(dc, EXCP_RANGE);
961 gen_set_label(lab);
962 tcg_gen_mov_i32(cpu_R[rd], res);
963 tcg_temp_free_i64(ta);
964 tcg_temp_free_i64(td);
965 tcg_temp_free_i64(tcy);
966 tcg_temp_free_i32(res);
967 tcg_temp_free_i32(sr_cy);
968 tcg_temp_free_i32(sr_ove);
969 }
970 break;
971
972 case 0x29: /* l.andi */
973 LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16);
974 tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
975 break;
976
977 case 0x2a: /* l.ori */
978 LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16);
979 tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
980 break;
981
982 case 0x2b: /* l.xori */
983 LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16);
984 tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16));
985 break;
986
987 case 0x2c: /* l.muli */
988 LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16);
989 if (ra != 0 && I16 != 0) {
990 TCGv_i32 im = tcg_const_i32(I16);
991 gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im);
992 tcg_temp_free_i32(im);
993 } else {
994 tcg_gen_movi_tl(cpu_R[rd], 0x0);
995 }
996 break;
997
998 case 0x2d: /* l.mfspr */
999 LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16);
1000 {
1001 #if defined(CONFIG_USER_ONLY)
1002 return;
1003 #else
1004 TCGv_i32 ti = tcg_const_i32(I16);
1005 if (dc->mem_idx == MMU_USER_IDX) {
1006 gen_illegal_exception(dc);
1007 return;
1008 }
1009 gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti);
1010 tcg_temp_free_i32(ti);
1011 #endif
1012 }
1013 break;
1014
1015 case 0x30: /* l.mtspr */
1016 LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1017 {
1018 #if defined(CONFIG_USER_ONLY)
1019 return;
1020 #else
1021 TCGv_i32 im = tcg_const_i32(tmp);
1022 if (dc->mem_idx == MMU_USER_IDX) {
1023 gen_illegal_exception(dc);
1024 return;
1025 }
1026 gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im);
1027 tcg_temp_free_i32(im);
1028 #endif
1029 }
1030 break;
1031
1032 /* not used yet, open it when we need or64. */
1033 /*#ifdef TARGET_OPENRISC64
1034 case 0x34: l.sd
1035 LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1036 {
1037 check_ob64s(dc);
1038 TCGv_i64 t0 = tcg_temp_new_i64();
1039 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
1040 tcg_gen_qemu_st64(cpu_R[rb], t0, dc->mem_idx);
1041 tcg_temp_free_i64(t0);
1042 }
1043 break;
1044 #endif*/
1045
1046 case 0x35: /* l.sw */
1047 LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1048 {
1049 TCGv t0 = tcg_temp_new();
1050 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
1051 tcg_gen_qemu_st32(cpu_R[rb], t0, dc->mem_idx);
1052 tcg_temp_free(t0);
1053 }
1054 break;
1055
1056 case 0x36: /* l.sb */
1057 LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1058 {
1059 TCGv t0 = tcg_temp_new();
1060 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
1061 tcg_gen_qemu_st8(cpu_R[rb], t0, dc->mem_idx);
1062 tcg_temp_free(t0);
1063 }
1064 break;
1065
1066 case 0x37: /* l.sh */
1067 LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1068 {
1069 TCGv t0 = tcg_temp_new();
1070 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
1071 tcg_gen_qemu_st16(cpu_R[rb], t0, dc->mem_idx);
1072 tcg_temp_free(t0);
1073 }
1074 break;
1075
1076 default:
1077 gen_illegal_exception(dc);
1078 break;
1079 }
1080 }
1081
1082 static void dec_mac(DisasContext *dc, uint32_t insn)
1083 {
1084 uint32_t op0;
1085 uint32_t ra, rb;
1086 op0 = extract32(insn, 0, 4);
1087 ra = extract32(insn, 16, 5);
1088 rb = extract32(insn, 11, 5);
1089
1090 switch (op0) {
1091 case 0x0001: /* l.mac */
1092 LOG_DIS("l.mac r%d, r%d\n", ra, rb);
1093 {
1094 TCGv_i32 t0 = tcg_temp_new_i32();
1095 TCGv_i64 t1 = tcg_temp_new_i64();
1096 TCGv_i64 t2 = tcg_temp_new_i64();
1097 tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
1098 tcg_gen_ext_i32_i64(t1, t0);
1099 tcg_gen_concat_i32_i64(t2, maclo, machi);
1100 tcg_gen_add_i64(t2, t2, t1);
1101 tcg_gen_trunc_i64_i32(maclo, t2);
1102 tcg_gen_shri_i64(t2, t2, 32);
1103 tcg_gen_trunc_i64_i32(machi, t2);
1104 tcg_temp_free_i32(t0);
1105 tcg_temp_free_i64(t1);
1106 tcg_temp_free_i64(t2);
1107 }
1108 break;
1109
1110 case 0x0002: /* l.msb */
1111 LOG_DIS("l.msb r%d, r%d\n", ra, rb);
1112 {
1113 TCGv_i32 t0 = tcg_temp_new_i32();
1114 TCGv_i64 t1 = tcg_temp_new_i64();
1115 TCGv_i64 t2 = tcg_temp_new_i64();
1116 tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
1117 tcg_gen_ext_i32_i64(t1, t0);
1118 tcg_gen_concat_i32_i64(t2, maclo, machi);
1119 tcg_gen_sub_i64(t2, t2, t1);
1120 tcg_gen_trunc_i64_i32(maclo, t2);
1121 tcg_gen_shri_i64(t2, t2, 32);
1122 tcg_gen_trunc_i64_i32(machi, t2);
1123 tcg_temp_free_i32(t0);
1124 tcg_temp_free_i64(t1);
1125 tcg_temp_free_i64(t2);
1126 }
1127 break;
1128
1129 default:
1130 gen_illegal_exception(dc);
1131 break;
1132 }
1133 }
1134
1135 static void dec_logic(DisasContext *dc, uint32_t insn)
1136 {
1137 uint32_t op0;
1138 uint32_t rd, ra, L6;
1139 op0 = extract32(insn, 6, 2);
1140 rd = extract32(insn, 21, 5);
1141 ra = extract32(insn, 16, 5);
1142 L6 = extract32(insn, 0, 6);
1143
1144 switch (op0) {
1145 case 0x00: /* l.slli */
1146 LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6);
1147 tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1148 break;
1149
1150 case 0x01: /* l.srli */
1151 LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6);
1152 tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1153 break;
1154
1155 case 0x02: /* l.srai */
1156 LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6);
1157 tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break;
1158
1159 case 0x03: /* l.rori */
1160 LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6);
1161 tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1162 break;
1163
1164 default:
1165 gen_illegal_exception(dc);
1166 break;
1167 }
1168 }
1169
1170 static void dec_M(DisasContext *dc, uint32_t insn)
1171 {
1172 uint32_t op0;
1173 uint32_t rd;
1174 uint32_t K16;
1175 op0 = extract32(insn, 16, 1);
1176 rd = extract32(insn, 21, 5);
1177 K16 = extract32(insn, 0, 16);
1178
1179 switch (op0) {
1180 case 0x0: /* l.movhi */
1181 LOG_DIS("l.movhi r%d, %d\n", rd, K16);
1182 tcg_gen_movi_tl(cpu_R[rd], (K16 << 16));
1183 break;
1184
1185 case 0x1: /* l.macrc */
1186 LOG_DIS("l.macrc r%d\n", rd);
1187 tcg_gen_mov_tl(cpu_R[rd], maclo);
1188 tcg_gen_movi_tl(maclo, 0x0);
1189 tcg_gen_movi_tl(machi, 0x0);
1190 break;
1191
1192 default:
1193 gen_illegal_exception(dc);
1194 break;
1195 }
1196 }
1197
1198 static void dec_comp(DisasContext *dc, uint32_t insn)
1199 {
1200 uint32_t op0;
1201 uint32_t ra, rb;
1202
1203 op0 = extract32(insn, 21, 5);
1204 ra = extract32(insn, 16, 5);
1205 rb = extract32(insn, 11, 5);
1206
1207 tcg_gen_movi_i32(env_btaken, 0x0);
1208 /* unsigned integers */
1209 tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]);
1210 tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]);
1211
1212 switch (op0) {
1213 case 0x0: /* l.sfeq */
1214 LOG_DIS("l.sfeq r%d, r%d\n", ra, rb);
1215 tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]);
1216 break;
1217
1218 case 0x1: /* l.sfne */
1219 LOG_DIS("l.sfne r%d, r%d\n", ra, rb);
1220 tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]);
1221 break;
1222
1223 case 0x2: /* l.sfgtu */
1224 LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb);
1225 tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]);
1226 break;
1227
1228 case 0x3: /* l.sfgeu */
1229 LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb);
1230 tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]);
1231 break;
1232
1233 case 0x4: /* l.sfltu */
1234 LOG_DIS("l.sfltu r%d, r%d\n", ra, rb);
1235 tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]);
1236 break;
1237
1238 case 0x5: /* l.sfleu */
1239 LOG_DIS("l.sfleu r%d, r%d\n", ra, rb);
1240 tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]);
1241 break;
1242
1243 case 0xa: /* l.sfgts */
1244 LOG_DIS("l.sfgts r%d, r%d\n", ra, rb);
1245 tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]);
1246 break;
1247
1248 case 0xb: /* l.sfges */
1249 LOG_DIS("l.sfges r%d, r%d\n", ra, rb);
1250 tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]);
1251 break;
1252
1253 case 0xc: /* l.sflts */
1254 LOG_DIS("l.sflts r%d, r%d\n", ra, rb);
1255 tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]);
1256 break;
1257
1258 case 0xd: /* l.sfles */
1259 LOG_DIS("l.sfles r%d, r%d\n", ra, rb);
1260 tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]);
1261 break;
1262
1263 default:
1264 gen_illegal_exception(dc);
1265 break;
1266 }
1267 wb_SR_F();
1268 }
1269
1270 static void dec_compi(DisasContext *dc, uint32_t insn)
1271 {
1272 uint32_t op0;
1273 uint32_t ra, I16;
1274
1275 op0 = extract32(insn, 21, 5);
1276 ra = extract32(insn, 16, 5);
1277 I16 = extract32(insn, 0, 16);
1278
1279 tcg_gen_movi_i32(env_btaken, 0x0);
1280 I16 = sign_extend(I16, 16);
1281
1282 switch (op0) {
1283 case 0x0: /* l.sfeqi */
1284 LOG_DIS("l.sfeqi r%d, %d\n", ra, I16);
1285 tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16);
1286 break;
1287
1288 case 0x1: /* l.sfnei */
1289 LOG_DIS("l.sfnei r%d, %d\n", ra, I16);
1290 tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16);
1291 break;
1292
1293 case 0x2: /* l.sfgtui */
1294 LOG_DIS("l.sfgtui r%d, %d\n", ra, I16);
1295 tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16);
1296 break;
1297
1298 case 0x3: /* l.sfgeui */
1299 LOG_DIS("l.sfgeui r%d, %d\n", ra, I16);
1300 tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16);
1301 break;
1302
1303 case 0x4: /* l.sfltui */
1304 LOG_DIS("l.sfltui r%d, %d\n", ra, I16);
1305 tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16);
1306 break;
1307
1308 case 0x5: /* l.sfleui */
1309 LOG_DIS("l.sfleui r%d, %d\n", ra, I16);
1310 tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16);
1311 break;
1312
1313 case 0xa: /* l.sfgtsi */
1314 LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16);
1315 tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16);
1316 break;
1317
1318 case 0xb: /* l.sfgesi */
1319 LOG_DIS("l.sfgesi r%d, %d\n", ra, I16);
1320 tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16);
1321 break;
1322
1323 case 0xc: /* l.sfltsi */
1324 LOG_DIS("l.sfltsi r%d, %d\n", ra, I16);
1325 tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16);
1326 break;
1327
1328 case 0xd: /* l.sflesi */
1329 LOG_DIS("l.sflesi r%d, %d\n", ra, I16);
1330 tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16);
1331 break;
1332
1333 default:
1334 gen_illegal_exception(dc);
1335 break;
1336 }
1337 wb_SR_F();
1338 }
1339
1340 static void dec_sys(DisasContext *dc, uint32_t insn)
1341 {
1342 uint32_t op0;
1343 #ifdef OPENRISC_DISAS
1344 uint32_t K16;
1345 #endif
1346 op0 = extract32(insn, 16, 8);
1347 #ifdef OPENRISC_DISAS
1348 K16 = extract32(insn, 0, 16);
1349 #endif
1350
1351 switch (op0) {
1352 case 0x000: /* l.sys */
1353 LOG_DIS("l.sys %d\n", K16);
1354 tcg_gen_movi_tl(cpu_pc, dc->pc);
1355 gen_exception(dc, EXCP_SYSCALL);
1356 dc->is_jmp = DISAS_UPDATE;
1357 break;
1358
1359 case 0x100: /* l.trap */
1360 LOG_DIS("l.trap %d\n", K16);
1361 #if defined(CONFIG_USER_ONLY)
1362 return;
1363 #else
1364 if (dc->mem_idx == MMU_USER_IDX) {
1365 gen_illegal_exception(dc);
1366 return;
1367 }
1368 tcg_gen_movi_tl(cpu_pc, dc->pc);
1369 gen_exception(dc, EXCP_TRAP);
1370 #endif
1371 break;
1372
1373 case 0x300: /* l.csync */
1374 LOG_DIS("l.csync\n");
1375 #if defined(CONFIG_USER_ONLY)
1376 return;
1377 #else
1378 if (dc->mem_idx == MMU_USER_IDX) {
1379 gen_illegal_exception(dc);
1380 return;
1381 }
1382 #endif
1383 break;
1384
1385 case 0x200: /* l.msync */
1386 LOG_DIS("l.msync\n");
1387 #if defined(CONFIG_USER_ONLY)
1388 return;
1389 #else
1390 if (dc->mem_idx == MMU_USER_IDX) {
1391 gen_illegal_exception(dc);
1392 return;
1393 }
1394 #endif
1395 break;
1396
1397 case 0x270: /* l.psync */
1398 LOG_DIS("l.psync\n");
1399 #if defined(CONFIG_USER_ONLY)
1400 return;
1401 #else
1402 if (dc->mem_idx == MMU_USER_IDX) {
1403 gen_illegal_exception(dc);
1404 return;
1405 }
1406 #endif
1407 break;
1408
1409 default:
1410 gen_illegal_exception(dc);
1411 break;
1412 }
1413 }
1414
1415 static void dec_float(DisasContext *dc, uint32_t insn)
1416 {
1417 uint32_t op0;
1418 uint32_t ra, rb, rd;
1419 op0 = extract32(insn, 0, 8);
1420 ra = extract32(insn, 16, 5);
1421 rb = extract32(insn, 11, 5);
1422 rd = extract32(insn, 21, 5);
1423
1424 switch (op0) {
1425 case 0x00: /* lf.add.s */
1426 LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb);
1427 gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1428 break;
1429
1430 case 0x01: /* lf.sub.s */
1431 LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb);
1432 gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1433 break;
1434
1435
1436 case 0x02: /* lf.mul.s */
1437 LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb);
1438 if (ra != 0 && rb != 0) {
1439 gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1440 } else {
1441 tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
1442 tcg_gen_movi_i32(cpu_R[rd], 0x0);
1443 }
1444 break;
1445
1446 case 0x03: /* lf.div.s */
1447 LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb);
1448 gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1449 break;
1450
1451 case 0x04: /* lf.itof.s */
1452 LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
1453 gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]);
1454 break;
1455
1456 case 0x05: /* lf.ftoi.s */
1457 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
1458 gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]);
1459 break;
1460
1461 case 0x06: /* lf.rem.s */
1462 LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb);
1463 gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1464 break;
1465
1466 case 0x07: /* lf.madd.s */
1467 LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb);
1468 gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1469 break;
1470
1471 case 0x08: /* lf.sfeq.s */
1472 LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb);
1473 gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1474 break;
1475
1476 case 0x09: /* lf.sfne.s */
1477 LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb);
1478 gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1479 break;
1480
1481 case 0x0a: /* lf.sfgt.s */
1482 LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb);
1483 gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1484 break;
1485
1486 case 0x0b: /* lf.sfge.s */
1487 LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb);
1488 gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1489 break;
1490
1491 case 0x0c: /* lf.sflt.s */
1492 LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb);
1493 gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1494 break;
1495
1496 case 0x0d: /* lf.sfle.s */
1497 LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb);
1498 gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1499 break;
1500
1501 /* not used yet, open it when we need or64. */
1502 /*#ifdef TARGET_OPENRISC64
1503 case 0x10: lf.add.d
1504 LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb);
1505 check_of64s(dc);
1506 gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1507 break;
1508
1509 case 0x11: lf.sub.d
1510 LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb);
1511 check_of64s(dc);
1512 gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1513 break;
1514
1515 case 0x12: lf.mul.d
1516 LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb);
1517 check_of64s(dc);
1518 if (ra != 0 && rb != 0) {
1519 gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1520 } else {
1521 tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
1522 tcg_gen_movi_i64(cpu_R[rd], 0x0);
1523 }
1524 break;
1525
1526 case 0x13: lf.div.d
1527 LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb);
1528 check_of64s(dc);
1529 gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1530 break;
1531
1532 case 0x14: lf.itof.d
1533 LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
1534 check_of64s(dc);
1535 gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]);
1536 break;
1537
1538 case 0x15: lf.ftoi.d
1539 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
1540 check_of64s(dc);
1541 gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]);
1542 break;
1543
1544 case 0x16: lf.rem.d
1545 LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb);
1546 check_of64s(dc);
1547 gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1548 break;
1549
1550 case 0x17: lf.madd.d
1551 LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb);
1552 check_of64s(dc);
1553 gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1554 break;
1555
1556 case 0x18: lf.sfeq.d
1557 LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb);
1558 check_of64s(dc);
1559 gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1560 break;
1561
1562 case 0x1a: lf.sfgt.d
1563 LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb);
1564 check_of64s(dc);
1565 gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1566 break;
1567
1568 case 0x1b: lf.sfge.d
1569 LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb);
1570 check_of64s(dc);
1571 gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1572 break;
1573
1574 case 0x19: lf.sfne.d
1575 LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb);
1576 check_of64s(dc);
1577 gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1578 break;
1579
1580 case 0x1c: lf.sflt.d
1581 LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb);
1582 check_of64s(dc);
1583 gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1584 break;
1585
1586 case 0x1d: lf.sfle.d
1587 LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb);
1588 check_of64s(dc);
1589 gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1590 break;
1591 #endif*/
1592
1593 default:
1594 gen_illegal_exception(dc);
1595 break;
1596 }
1597 wb_SR_F();
1598 }
1599
1600 static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu)
1601 {
1602 uint32_t op0;
1603 uint32_t insn;
1604 insn = cpu_ldl_code(&cpu->env, dc->pc);
1605 op0 = extract32(insn, 26, 6);
1606
1607 switch (op0) {
1608 case 0x06:
1609 dec_M(dc, insn);
1610 break;
1611
1612 case 0x08:
1613 dec_sys(dc, insn);
1614 break;
1615
1616 case 0x2e:
1617 dec_logic(dc, insn);
1618 break;
1619
1620 case 0x2f:
1621 dec_compi(dc, insn);
1622 break;
1623
1624 case 0x31:
1625 dec_mac(dc, insn);
1626 break;
1627
1628 case 0x32:
1629 dec_float(dc, insn);
1630 break;
1631
1632 case 0x38:
1633 dec_calc(dc, insn);
1634 break;
1635
1636 case 0x39:
1637 dec_comp(dc, insn);
1638 break;
1639
1640 default:
1641 dec_misc(dc, insn);
1642 break;
1643 }
1644 }
1645
1646 static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc)
1647 {
1648 CPUBreakpoint *bp;
1649
1650 if (unlikely(!QTAILQ_EMPTY(&cpu->env.breakpoints))) {
1651 QTAILQ_FOREACH(bp, &cpu->env.breakpoints, entry) {
1652 if (bp->pc == dc->pc) {
1653 tcg_gen_movi_tl(cpu_pc, dc->pc);
1654 gen_exception(dc, EXCP_DEBUG);
1655 dc->is_jmp = DISAS_UPDATE;
1656 }
1657 }
1658 }
1659 }
1660
1661 static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
1662 TranslationBlock *tb,
1663 int search_pc)
1664 {
1665 CPUState *cs = CPU(cpu);
1666 struct DisasContext ctx, *dc = &ctx;
1667 uint16_t *gen_opc_end;
1668 uint32_t pc_start;
1669 int j, k;
1670 uint32_t next_page_start;
1671 int num_insns;
1672 int max_insns;
1673
1674 pc_start = tb->pc;
1675 dc->tb = tb;
1676
1677 gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
1678 dc->is_jmp = DISAS_NEXT;
1679 dc->ppc = pc_start;
1680 dc->pc = pc_start;
1681 dc->flags = cpu->env.cpucfgr;
1682 dc->mem_idx = cpu_mmu_index(&cpu->env);
1683 dc->synced_flags = dc->tb_flags = tb->flags;
1684 dc->delayed_branch = !!(dc->tb_flags & D_FLAG);
1685 dc->singlestep_enabled = cs->singlestep_enabled;
1686 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
1687 qemu_log("-----------------------------------------\n");
1688 log_cpu_state(CPU(cpu), 0);
1689 }
1690
1691 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
1692 k = -1;
1693 num_insns = 0;
1694 max_insns = tb->cflags & CF_COUNT_MASK;
1695
1696 if (max_insns == 0) {
1697 max_insns = CF_COUNT_MASK;
1698 }
1699
1700 gen_tb_start();
1701
1702 do {
1703 check_breakpoint(cpu, dc);
1704 if (search_pc) {
1705 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
1706 if (k < j) {
1707 k++;
1708 while (k < j) {
1709 tcg_ctx.gen_opc_instr_start[k++] = 0;
1710 }
1711 }
1712 tcg_ctx.gen_opc_pc[k] = dc->pc;
1713 tcg_ctx.gen_opc_instr_start[k] = 1;
1714 tcg_ctx.gen_opc_icount[k] = num_insns;
1715 }
1716
1717 if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
1718 tcg_gen_debug_insn_start(dc->pc);
1719 }
1720
1721 if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
1722 gen_io_start();
1723 }
1724 dc->ppc = dc->pc - 4;
1725 dc->npc = dc->pc + 4;
1726 tcg_gen_movi_tl(cpu_ppc, dc->ppc);
1727 tcg_gen_movi_tl(cpu_npc, dc->npc);
1728 disas_openrisc_insn(dc, cpu);
1729 dc->pc = dc->npc;
1730 num_insns++;
1731 /* delay slot */
1732 if (dc->delayed_branch) {
1733 dc->delayed_branch--;
1734 if (!dc->delayed_branch) {
1735 dc->tb_flags &= ~D_FLAG;
1736 gen_sync_flags(dc);
1737 tcg_gen_mov_tl(cpu_pc, jmp_pc);
1738 tcg_gen_mov_tl(cpu_npc, jmp_pc);
1739 tcg_gen_movi_tl(jmp_pc, 0);
1740 tcg_gen_exit_tb(0);
1741 dc->is_jmp = DISAS_JUMP;
1742 break;
1743 }
1744 }
1745 } while (!dc->is_jmp
1746 && tcg_ctx.gen_opc_ptr < gen_opc_end
1747 && !cs->singlestep_enabled
1748 && !singlestep
1749 && (dc->pc < next_page_start)
1750 && num_insns < max_insns);
1751
1752 if (tb->cflags & CF_LAST_IO) {
1753 gen_io_end();
1754 }
1755 if (dc->is_jmp == DISAS_NEXT) {
1756 dc->is_jmp = DISAS_UPDATE;
1757 tcg_gen_movi_tl(cpu_pc, dc->pc);
1758 }
1759 if (unlikely(cs->singlestep_enabled)) {
1760 if (dc->is_jmp == DISAS_NEXT) {
1761 tcg_gen_movi_tl(cpu_pc, dc->pc);
1762 }
1763 gen_exception(dc, EXCP_DEBUG);
1764 } else {
1765 switch (dc->is_jmp) {
1766 case DISAS_NEXT:
1767 gen_goto_tb(dc, 0, dc->pc);
1768 break;
1769 default:
1770 case DISAS_JUMP:
1771 break;
1772 case DISAS_UPDATE:
1773 /* indicate that the hash table must be used
1774 to find the next TB */
1775 tcg_gen_exit_tb(0);
1776 break;
1777 case DISAS_TB_JUMP:
1778 /* nothing more to generate */
1779 break;
1780 }
1781 }
1782
1783 gen_tb_end(tb, num_insns);
1784 *tcg_ctx.gen_opc_ptr = INDEX_op_end;
1785 if (search_pc) {
1786 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
1787 k++;
1788 while (k <= j) {
1789 tcg_ctx.gen_opc_instr_start[k++] = 0;
1790 }
1791 } else {
1792 tb->size = dc->pc - pc_start;
1793 tb->icount = num_insns;
1794 }
1795
1796 #ifdef DEBUG_DISAS
1797 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
1798 qemu_log("\n");
1799 log_target_disas(&cpu->env, pc_start, dc->pc - pc_start, 0);
1800 qemu_log("\nisize=%d osize=%td\n",
1801 dc->pc - pc_start, tcg_ctx.gen_opc_ptr -
1802 tcg_ctx.gen_opc_buf);
1803 }
1804 #endif
1805 }
1806
1807 void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb)
1808 {
1809 gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 0);
1810 }
1811
1812 void gen_intermediate_code_pc(CPUOpenRISCState *env,
1813 struct TranslationBlock *tb)
1814 {
1815 gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 1);
1816 }
1817
1818 void openrisc_cpu_dump_state(CPUState *cs, FILE *f,
1819 fprintf_function cpu_fprintf,
1820 int flags)
1821 {
1822 OpenRISCCPU *cpu = OPENRISC_CPU(cs);
1823 CPUOpenRISCState *env = &cpu->env;
1824 int i;
1825
1826 cpu_fprintf(f, "PC=%08x\n", env->pc);
1827 for (i = 0; i < 32; ++i) {
1828 cpu_fprintf(f, "R%02d=%08x%c", i, env->gpr[i],
1829 (i % 4) == 3 ? '\n' : ' ');
1830 }
1831 }
1832
1833 void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb,
1834 int pc_pos)
1835 {
1836 env->pc = tcg_ctx.gen_opc_pc[pc_pos];
1837 }
Qemu copy for testing