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vmw_pvscsi: Set device subsystem and revision
[qemu/kevin.git] / target-openrisc / translate.c
blob606490a47b52d78d104e6e5d8025ca533ce65bb6
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 TCGLabel *label = gen_new_label();
122 tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F);
123 tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label);
124 tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F);
125 gen_set_label(label);
126 }
127
128 static inline int zero_extend(unsigned int val, int width)
129 {
130 return val & ((1 << width) - 1);
131 }
132
133 static inline int sign_extend(unsigned int val, int width)
134 {
135 int sval;
136
137 /* LSL */
138 val <<= TARGET_LONG_BITS - width;
139 sval = val;
140 /* ASR. */
141 sval >>= TARGET_LONG_BITS - width;
142 return sval;
143 }
144
145 static inline void gen_sync_flags(DisasContext *dc)
146 {
147 /* Sync the tb dependent flag between translate and runtime. */
148 if (dc->tb_flags != dc->synced_flags) {
149 tcg_gen_movi_tl(env_flags, dc->tb_flags);
150 dc->synced_flags = dc->tb_flags;
151 }
152 }
153
154 static void gen_exception(DisasContext *dc, unsigned int excp)
155 {
156 TCGv_i32 tmp = tcg_const_i32(excp);
157 gen_helper_exception(cpu_env, tmp);
158 tcg_temp_free_i32(tmp);
159 }
160
161 static void gen_illegal_exception(DisasContext *dc)
162 {
163 tcg_gen_movi_tl(cpu_pc, dc->pc);
164 gen_exception(dc, EXCP_ILLEGAL);
165 dc->is_jmp = DISAS_UPDATE;
166 }
167
168 /* not used yet, open it when we need or64. */
169 /*#ifdef TARGET_OPENRISC64
170 static void check_ob64s(DisasContext *dc)
171 {
172 if (!(dc->flags & CPUCFGR_OB64S)) {
173 gen_illegal_exception(dc);
174 }
175 }
176
177 static void check_of64s(DisasContext *dc)
178 {
179 if (!(dc->flags & CPUCFGR_OF64S)) {
180 gen_illegal_exception(dc);
181 }
182 }
183
184 static void check_ov64s(DisasContext *dc)
185 {
186 if (!(dc->flags & CPUCFGR_OV64S)) {
187 gen_illegal_exception(dc);
188 }
189 }
190 #endif*/
191
192 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
193 {
194 TranslationBlock *tb;
195 tb = dc->tb;
196 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
197 likely(!dc->singlestep_enabled)) {
198 tcg_gen_movi_tl(cpu_pc, dest);
199 tcg_gen_goto_tb(n);
200 tcg_gen_exit_tb((uintptr_t)tb + n);
201 } else {
202 tcg_gen_movi_tl(cpu_pc, dest);
203 if (dc->singlestep_enabled) {
204 gen_exception(dc, EXCP_DEBUG);
205 }
206 tcg_gen_exit_tb(0);
207 }
208 }
209
210 static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0)
211 {
212 target_ulong tmp_pc;
213 /* N26, 26bits imm */
214 tmp_pc = sign_extend((imm<<2), 26) + dc->pc;
215
216 switch (op0) {
217 case 0x00: /* l.j */
218 tcg_gen_movi_tl(jmp_pc, tmp_pc);
219 break;
220 case 0x01: /* l.jal */
221 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
222 tcg_gen_movi_tl(jmp_pc, tmp_pc);
223 break;
224 case 0x03: /* l.bnf */
225 case 0x04: /* l.bf */
226 {
227 TCGLabel *lab = gen_new_label();
228 TCGv sr_f = tcg_temp_new();
229 tcg_gen_movi_tl(jmp_pc, dc->pc+8);
230 tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
231 tcg_gen_brcondi_i32(op0 == 0x03 ? TCG_COND_EQ : TCG_COND_NE,
232 sr_f, SR_F, lab);
233 tcg_gen_movi_tl(jmp_pc, tmp_pc);
234 gen_set_label(lab);
235 tcg_temp_free(sr_f);
236 }
237 break;
238 case 0x11: /* l.jr */
239 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
240 break;
241 case 0x12: /* l.jalr */
242 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
243 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
244 break;
245 default:
246 gen_illegal_exception(dc);
247 break;
248 }
249
250 dc->delayed_branch = 2;
251 dc->tb_flags |= D_FLAG;
252 gen_sync_flags(dc);
253 }
254
255
256 static void dec_calc(DisasContext *dc, uint32_t insn)
257 {
258 uint32_t op0, op1, op2;
259 uint32_t ra, rb, rd;
260 op0 = extract32(insn, 0, 4);
261 op1 = extract32(insn, 8, 2);
262 op2 = extract32(insn, 6, 2);
263 ra = extract32(insn, 16, 5);
264 rb = extract32(insn, 11, 5);
265 rd = extract32(insn, 21, 5);
266
267 switch (op0) {
268 case 0x0000:
269 switch (op1) {
270 case 0x00: /* l.add */
271 LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb);
272 {
273 TCGLabel *lab = gen_new_label();
274 TCGv_i64 ta = tcg_temp_new_i64();
275 TCGv_i64 tb = tcg_temp_new_i64();
276 TCGv_i64 td = tcg_temp_local_new_i64();
277 TCGv_i32 res = tcg_temp_local_new_i32();
278 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
279 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
280 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
281 tcg_gen_add_i64(td, ta, tb);
282 tcg_gen_extrl_i64_i32(res, td);
283 tcg_gen_shri_i64(td, td, 31);
284 tcg_gen_andi_i64(td, td, 0x3);
285 /* Jump to lab when no overflow. */
286 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
287 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
288 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
289 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
290 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
291 gen_exception(dc, EXCP_RANGE);
292 gen_set_label(lab);
293 tcg_gen_mov_i32(cpu_R[rd], res);
294 tcg_temp_free_i64(ta);
295 tcg_temp_free_i64(tb);
296 tcg_temp_free_i64(td);
297 tcg_temp_free_i32(res);
298 tcg_temp_free_i32(sr_ove);
299 }
300 break;
301 default:
302 gen_illegal_exception(dc);
303 break;
304 }
305 break;
306
307 case 0x0001: /* l.addc */
308 switch (op1) {
309 case 0x00:
310 LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb);
311 {
312 TCGLabel *lab = gen_new_label();
313 TCGv_i64 ta = tcg_temp_new_i64();
314 TCGv_i64 tb = tcg_temp_new_i64();
315 TCGv_i64 tcy = tcg_temp_local_new_i64();
316 TCGv_i64 td = tcg_temp_local_new_i64();
317 TCGv_i32 res = tcg_temp_local_new_i32();
318 TCGv_i32 sr_cy = tcg_temp_local_new_i32();
319 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
320 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
321 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
322 tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
323 tcg_gen_extu_i32_i64(tcy, sr_cy);
324 tcg_gen_shri_i64(tcy, tcy, 10);
325 tcg_gen_add_i64(td, ta, tb);
326 tcg_gen_add_i64(td, td, tcy);
327 tcg_gen_extrl_i64_i32(res, td);
328 tcg_gen_shri_i64(td, td, 32);
329 tcg_gen_andi_i64(td, td, 0x3);
330 /* Jump to lab when no overflow. */
331 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
332 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
333 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
334 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
335 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
336 gen_exception(dc, EXCP_RANGE);
337 gen_set_label(lab);
338 tcg_gen_mov_i32(cpu_R[rd], res);
339 tcg_temp_free_i64(ta);
340 tcg_temp_free_i64(tb);
341 tcg_temp_free_i64(tcy);
342 tcg_temp_free_i64(td);
343 tcg_temp_free_i32(res);
344 tcg_temp_free_i32(sr_cy);
345 tcg_temp_free_i32(sr_ove);
346 }
347 break;
348 default:
349 gen_illegal_exception(dc);
350 break;
351 }
352 break;
353
354 case 0x0002: /* l.sub */
355 switch (op1) {
356 case 0x00:
357 LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb);
358 {
359 TCGLabel *lab = gen_new_label();
360 TCGv_i64 ta = tcg_temp_new_i64();
361 TCGv_i64 tb = tcg_temp_new_i64();
362 TCGv_i64 td = tcg_temp_local_new_i64();
363 TCGv_i32 res = tcg_temp_local_new_i32();
364 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
365
366 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
367 tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
368 tcg_gen_sub_i64(td, ta, tb);
369 tcg_gen_extrl_i64_i32(res, td);
370 tcg_gen_shri_i64(td, td, 31);
371 tcg_gen_andi_i64(td, td, 0x3);
372 /* Jump to lab when no overflow. */
373 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
374 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
375 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
376 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
377 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
378 gen_exception(dc, EXCP_RANGE);
379 gen_set_label(lab);
380 tcg_gen_mov_i32(cpu_R[rd], res);
381 tcg_temp_free_i64(ta);
382 tcg_temp_free_i64(tb);
383 tcg_temp_free_i64(td);
384 tcg_temp_free_i32(res);
385 tcg_temp_free_i32(sr_ove);
386 }
387 break;
388 default:
389 gen_illegal_exception(dc);
390 break;
391 }
392 break;
393
394 case 0x0003: /* l.and */
395 switch (op1) {
396 case 0x00:
397 LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb);
398 tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
399 break;
400 default:
401 gen_illegal_exception(dc);
402 break;
403 }
404 break;
405
406 case 0x0004: /* l.or */
407 switch (op1) {
408 case 0x00:
409 LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb);
410 tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
411 break;
412 default:
413 gen_illegal_exception(dc);
414 break;
415 }
416 break;
417
418 case 0x0005:
419 switch (op1) {
420 case 0x00: /* l.xor */
421 LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb);
422 tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
423 break;
424 default:
425 gen_illegal_exception(dc);
426 break;
427 }
428 break;
429
430 case 0x0006:
431 switch (op1) {
432 case 0x03: /* l.mul */
433 LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb);
434 if (ra != 0 && rb != 0) {
435 gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
436 } else {
437 tcg_gen_movi_tl(cpu_R[rd], 0x0);
438 }
439 break;
440 default:
441 gen_illegal_exception(dc);
442 break;
443 }
444 break;
445
446 case 0x0009:
447 switch (op1) {
448 case 0x03: /* l.div */
449 LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb);
450 {
451 TCGLabel *lab0 = gen_new_label();
452 TCGLabel *lab1 = gen_new_label();
453 TCGLabel *lab2 = gen_new_label();
454 TCGLabel *lab3 = gen_new_label();
455 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
456 if (rb == 0) {
457 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
458 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
459 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
460 gen_exception(dc, EXCP_RANGE);
461 gen_set_label(lab0);
462 } else {
463 tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb],
464 0x00000000, lab1);
465 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra],
466 0x80000000, lab2);
467 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
468 0xffffffff, lab2);
469 gen_set_label(lab1);
470 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
471 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
472 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3);
473 gen_exception(dc, EXCP_RANGE);
474 gen_set_label(lab2);
475 tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
476 gen_set_label(lab3);
477 }
478 tcg_temp_free_i32(sr_ove);
479 }
480 break;
481
482 default:
483 gen_illegal_exception(dc);
484 break;
485 }
486 break;
487
488 case 0x000a:
489 switch (op1) {
490 case 0x03: /* l.divu */
491 LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb);
492 {
493 TCGLabel *lab0 = gen_new_label();
494 TCGLabel *lab1 = gen_new_label();
495 TCGLabel *lab2 = gen_new_label();
496 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
497 if (rb == 0) {
498 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
499 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
500 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
501 gen_exception(dc, EXCP_RANGE);
502 gen_set_label(lab0);
503 } else {
504 tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
505 0x00000000, lab1);
506 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
507 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
508 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab2);
509 gen_exception(dc, EXCP_RANGE);
510 gen_set_label(lab1);
511 tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
512 gen_set_label(lab2);
513 }
514 tcg_temp_free_i32(sr_ove);
515 }
516 break;
517
518 default:
519 gen_illegal_exception(dc);
520 break;
521 }
522 break;
523
524 case 0x000b:
525 switch (op1) {
526 case 0x03: /* l.mulu */
527 LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb);
528 if (rb != 0 && ra != 0) {
529 TCGv_i64 result = tcg_temp_local_new_i64();
530 TCGv_i64 tra = tcg_temp_local_new_i64();
531 TCGv_i64 trb = tcg_temp_local_new_i64();
532 TCGv_i64 high = tcg_temp_new_i64();
533 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
534 TCGLabel *lab = gen_new_label();
535 /* Calculate each result. */
536 tcg_gen_extu_i32_i64(tra, cpu_R[ra]);
537 tcg_gen_extu_i32_i64(trb, cpu_R[rb]);
538 tcg_gen_mul_i64(result, tra, trb);
539 tcg_temp_free_i64(tra);
540 tcg_temp_free_i64(trb);
541 tcg_gen_shri_i64(high, result, TARGET_LONG_BITS);
542 /* Overflow or not. */
543 tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab);
544 tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
545 tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
546 tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab);
547 gen_exception(dc, EXCP_RANGE);
548 gen_set_label(lab);
549 tcg_temp_free_i64(high);
550 tcg_gen_trunc_i64_tl(cpu_R[rd], result);
551 tcg_temp_free_i64(result);
552 tcg_temp_free_i32(sr_ove);
553 } else {
554 tcg_gen_movi_tl(cpu_R[rd], 0);
555 }
556 break;
557
558 default:
559 gen_illegal_exception(dc);
560 break;
561 }
562 break;
563
564 case 0x000e:
565 switch (op1) {
566 case 0x00: /* l.cmov */
567 LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb);
568 {
569 TCGLabel *lab = gen_new_label();
570 TCGv res = tcg_temp_local_new();
571 TCGv sr_f = tcg_temp_new();
572 tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
573 tcg_gen_mov_tl(res, cpu_R[rb]);
574 tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab);
575 tcg_gen_mov_tl(res, cpu_R[ra]);
576 gen_set_label(lab);
577 tcg_gen_mov_tl(cpu_R[rd], res);
578 tcg_temp_free(sr_f);
579 tcg_temp_free(res);
580 }
581 break;
582
583 default:
584 gen_illegal_exception(dc);
585 break;
586 }
587 break;
588
589 case 0x000f:
590 switch (op1) {
591 case 0x00: /* l.ff1 */
592 LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb);
593 gen_helper_ff1(cpu_R[rd], cpu_R[ra]);
594 break;
595 case 0x01: /* l.fl1 */
596 LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb);
597 gen_helper_fl1(cpu_R[rd], cpu_R[ra]);
598 break;
599
600 default:
601 gen_illegal_exception(dc);
602 break;
603 }
604 break;
605
606 case 0x0008:
607 switch (op1) {
608 case 0x00:
609 switch (op2) {
610 case 0x00: /* l.sll */
611 LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb);
612 tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
613 break;
614 case 0x01: /* l.srl */
615 LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb);
616 tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
617 break;
618 case 0x02: /* l.sra */
619 LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb);
620 tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
621 break;
622 case 0x03: /* l.ror */
623 LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb);
624 tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
625 break;
626
627 default:
628 gen_illegal_exception(dc);
629 break;
630 }
631 break;
632
633 default:
634 gen_illegal_exception(dc);
635 break;
636 }
637 break;
638
639 case 0x000c:
640 switch (op1) {
641 case 0x00:
642 switch (op2) {
643 case 0x00: /* l.exths */
644 LOG_DIS("l.exths r%d, r%d\n", rd, ra);
645 tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]);
646 break;
647 case 0x01: /* l.extbs */
648 LOG_DIS("l.extbs r%d, r%d\n", rd, ra);
649 tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]);
650 break;
651 case 0x02: /* l.exthz */
652 LOG_DIS("l.exthz r%d, r%d\n", rd, ra);
653 tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]);
654 break;
655 case 0x03: /* l.extbz */
656 LOG_DIS("l.extbz r%d, r%d\n", rd, ra);
657 tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]);
658 break;
659
660 default:
661 gen_illegal_exception(dc);
662 break;
663 }
664 break;
665
666 default:
667 gen_illegal_exception(dc);
668 break;
669 }
670 break;
671
672 case 0x000d:
673 switch (op1) {
674 case 0x00:
675 switch (op2) {
676 case 0x00: /* l.extws */
677 LOG_DIS("l.extws r%d, r%d\n", rd, ra);
678 tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]);
679 break;
680 case 0x01: /* l.extwz */
681 LOG_DIS("l.extwz r%d, r%d\n", rd, ra);
682 tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]);
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 break;
696
697 default:
698 gen_illegal_exception(dc);
699 break;
700 }
701 }
702
703 static void dec_misc(DisasContext *dc, uint32_t insn)
704 {
705 uint32_t op0, op1;
706 uint32_t ra, rb, rd;
707 #ifdef OPENRISC_DISAS
708 uint32_t L6, K5;
709 #endif
710 uint32_t I16, I5, I11, N26, tmp;
711 TCGMemOp mop;
712
713 op0 = extract32(insn, 26, 6);
714 op1 = extract32(insn, 24, 2);
715 ra = extract32(insn, 16, 5);
716 rb = extract32(insn, 11, 5);
717 rd = extract32(insn, 21, 5);
718 #ifdef OPENRISC_DISAS
719 L6 = extract32(insn, 5, 6);
720 K5 = extract32(insn, 0, 5);
721 #endif
722 I16 = extract32(insn, 0, 16);
723 I5 = extract32(insn, 21, 5);
724 I11 = extract32(insn, 0, 11);
725 N26 = extract32(insn, 0, 26);
726 tmp = (I5<<11) + I11;
727
728 switch (op0) {
729 case 0x00: /* l.j */
730 LOG_DIS("l.j %d\n", N26);
731 gen_jump(dc, N26, 0, op0);
732 break;
733
734 case 0x01: /* l.jal */
735 LOG_DIS("l.jal %d\n", N26);
736 gen_jump(dc, N26, 0, op0);
737 break;
738
739 case 0x03: /* l.bnf */
740 LOG_DIS("l.bnf %d\n", N26);
741 gen_jump(dc, N26, 0, op0);
742 break;
743
744 case 0x04: /* l.bf */
745 LOG_DIS("l.bf %d\n", N26);
746 gen_jump(dc, N26, 0, op0);
747 break;
748
749 case 0x05:
750 switch (op1) {
751 case 0x01: /* l.nop */
752 LOG_DIS("l.nop %d\n", I16);
753 break;
754
755 default:
756 gen_illegal_exception(dc);
757 break;
758 }
759 break;
760
761 case 0x11: /* l.jr */
762 LOG_DIS("l.jr r%d\n", rb);
763 gen_jump(dc, 0, rb, op0);
764 break;
765
766 case 0x12: /* l.jalr */
767 LOG_DIS("l.jalr r%d\n", rb);
768 gen_jump(dc, 0, rb, op0);
769 break;
770
771 case 0x13: /* l.maci */
772 LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11);
773 {
774 TCGv_i64 t1 = tcg_temp_new_i64();
775 TCGv_i64 t2 = tcg_temp_new_i64();
776 TCGv_i32 dst = tcg_temp_new_i32();
777 TCGv ttmp = tcg_const_tl(tmp);
778 tcg_gen_mul_tl(dst, cpu_R[ra], ttmp);
779 tcg_gen_ext_i32_i64(t1, dst);
780 tcg_gen_concat_i32_i64(t2, maclo, machi);
781 tcg_gen_add_i64(t2, t2, t1);
782 tcg_gen_extrl_i64_i32(maclo, t2);
783 tcg_gen_shri_i64(t2, t2, 32);
784 tcg_gen_extrl_i64_i32(machi, t2);
785 tcg_temp_free_i32(dst);
786 tcg_temp_free(ttmp);
787 tcg_temp_free_i64(t1);
788 tcg_temp_free_i64(t2);
789 }
790 break;
791
792 case 0x09: /* l.rfe */
793 LOG_DIS("l.rfe\n");
794 {
795 #if defined(CONFIG_USER_ONLY)
796 return;
797 #else
798 if (dc->mem_idx == MMU_USER_IDX) {
799 gen_illegal_exception(dc);
800 return;
801 }
802 gen_helper_rfe(cpu_env);
803 dc->is_jmp = DISAS_UPDATE;
804 #endif
805 }
806 break;
807
808 case 0x1c: /* l.cust1 */
809 LOG_DIS("l.cust1\n");
810 break;
811
812 case 0x1d: /* l.cust2 */
813 LOG_DIS("l.cust2\n");
814 break;
815
816 case 0x1e: /* l.cust3 */
817 LOG_DIS("l.cust3\n");
818 break;
819
820 case 0x1f: /* l.cust4 */
821 LOG_DIS("l.cust4\n");
822 break;
823
824 case 0x3c: /* l.cust5 */
825 LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5);
826 break;
827
828 case 0x3d: /* l.cust6 */
829 LOG_DIS("l.cust6\n");
830 break;
831
832 case 0x3e: /* l.cust7 */
833 LOG_DIS("l.cust7\n");
834 break;
835
836 case 0x3f: /* l.cust8 */
837 LOG_DIS("l.cust8\n");
838 break;
839
840 /* not used yet, open it when we need or64. */
841 /*#ifdef TARGET_OPENRISC64
842 case 0x20: l.ld
843 LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16);
844 check_ob64s(dc);
845 mop = MO_TEQ;
846 goto do_load;
847 #endif*/
848
849 case 0x21: /* l.lwz */
850 LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16);
851 mop = MO_TEUL;
852 goto do_load;
853
854 case 0x22: /* l.lws */
855 LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16);
856 mop = MO_TESL;
857 goto do_load;
858
859 case 0x23: /* l.lbz */
860 LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16);
861 mop = MO_UB;
862 goto do_load;
863
864 case 0x24: /* l.lbs */
865 LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16);
866 mop = MO_SB;
867 goto do_load;
868
869 case 0x25: /* l.lhz */
870 LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16);
871 mop = MO_TEUW;
872 goto do_load;
873
874 case 0x26: /* l.lhs */
875 LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16);
876 mop = MO_TESW;
877 goto do_load;
878
879 do_load:
880 {
881 TCGv t0 = tcg_temp_new();
882 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
883 tcg_gen_qemu_ld_tl(cpu_R[rd], t0, dc->mem_idx, mop);
884 tcg_temp_free(t0);
885 }
886 break;
887
888 case 0x27: /* l.addi */
889 LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16);
890 {
891 if (I16 == 0) {
892 tcg_gen_mov_tl(cpu_R[rd], cpu_R[ra]);
893 } else {
894 TCGLabel *lab = gen_new_label();
895 TCGv_i64 ta = tcg_temp_new_i64();
896 TCGv_i64 td = tcg_temp_local_new_i64();
897 TCGv_i32 res = tcg_temp_local_new_i32();
898 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
899 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
900 tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
901 tcg_gen_extrl_i64_i32(res, td);
902 tcg_gen_shri_i64(td, td, 32);
903 tcg_gen_andi_i64(td, td, 0x3);
904 /* Jump to lab when no overflow. */
905 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
906 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
907 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
908 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
909 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
910 gen_exception(dc, EXCP_RANGE);
911 gen_set_label(lab);
912 tcg_gen_mov_i32(cpu_R[rd], res);
913 tcg_temp_free_i64(ta);
914 tcg_temp_free_i64(td);
915 tcg_temp_free_i32(res);
916 tcg_temp_free_i32(sr_ove);
917 }
918 }
919 break;
920
921 case 0x28: /* l.addic */
922 LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16);
923 {
924 TCGLabel *lab = gen_new_label();
925 TCGv_i64 ta = tcg_temp_new_i64();
926 TCGv_i64 td = tcg_temp_local_new_i64();
927 TCGv_i64 tcy = tcg_temp_local_new_i64();
928 TCGv_i32 res = tcg_temp_local_new_i32();
929 TCGv_i32 sr_cy = tcg_temp_local_new_i32();
930 TCGv_i32 sr_ove = tcg_temp_local_new_i32();
931 tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
932 tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
933 tcg_gen_shri_i32(sr_cy, sr_cy, 10);
934 tcg_gen_extu_i32_i64(tcy, sr_cy);
935 tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
936 tcg_gen_add_i64(td, td, tcy);
937 tcg_gen_extrl_i64_i32(res, td);
938 tcg_gen_shri_i64(td, td, 32);
939 tcg_gen_andi_i64(td, td, 0x3);
940 /* Jump to lab when no overflow. */
941 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
942 tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
943 tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
944 tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
945 tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
946 gen_exception(dc, EXCP_RANGE);
947 gen_set_label(lab);
948 tcg_gen_mov_i32(cpu_R[rd], res);
949 tcg_temp_free_i64(ta);
950 tcg_temp_free_i64(td);
951 tcg_temp_free_i64(tcy);
952 tcg_temp_free_i32(res);
953 tcg_temp_free_i32(sr_cy);
954 tcg_temp_free_i32(sr_ove);
955 }
956 break;
957
958 case 0x29: /* l.andi */
959 LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16);
960 tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
961 break;
962
963 case 0x2a: /* l.ori */
964 LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16);
965 tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
966 break;
967
968 case 0x2b: /* l.xori */
969 LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16);
970 tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16));
971 break;
972
973 case 0x2c: /* l.muli */
974 LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16);
975 if (ra != 0 && I16 != 0) {
976 TCGv_i32 im = tcg_const_i32(I16);
977 gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im);
978 tcg_temp_free_i32(im);
979 } else {
980 tcg_gen_movi_tl(cpu_R[rd], 0x0);
981 }
982 break;
983
984 case 0x2d: /* l.mfspr */
985 LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16);
986 {
987 #if defined(CONFIG_USER_ONLY)
988 return;
989 #else
990 TCGv_i32 ti = tcg_const_i32(I16);
991 if (dc->mem_idx == MMU_USER_IDX) {
992 gen_illegal_exception(dc);
993 return;
994 }
995 gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti);
996 tcg_temp_free_i32(ti);
997 #endif
998 }
999 break;
1000
1001 case 0x30: /* l.mtspr */
1002 LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1003 {
1004 #if defined(CONFIG_USER_ONLY)
1005 return;
1006 #else
1007 TCGv_i32 im = tcg_const_i32(tmp);
1008 if (dc->mem_idx == MMU_USER_IDX) {
1009 gen_illegal_exception(dc);
1010 return;
1011 }
1012 gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im);
1013 tcg_temp_free_i32(im);
1014 #endif
1015 }
1016 break;
1017
1018 /* not used yet, open it when we need or64. */
1019 /*#ifdef TARGET_OPENRISC64
1020 case 0x34: l.sd
1021 LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1022 check_ob64s(dc);
1023 mop = MO_TEQ;
1024 goto do_store;
1025 #endif*/
1026
1027 case 0x35: /* l.sw */
1028 LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1029 mop = MO_TEUL;
1030 goto do_store;
1031
1032 case 0x36: /* l.sb */
1033 LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1034 mop = MO_UB;
1035 goto do_store;
1036
1037 case 0x37: /* l.sh */
1038 LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11);
1039 mop = MO_TEUW;
1040 goto do_store;
1041
1042 do_store:
1043 {
1044 TCGv t0 = tcg_temp_new();
1045 tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
1046 tcg_gen_qemu_st_tl(cpu_R[rb], t0, dc->mem_idx, mop);
1047 tcg_temp_free(t0);
1048 }
1049 break;
1050
1051 default:
1052 gen_illegal_exception(dc);
1053 break;
1054 }
1055 }
1056
1057 static void dec_mac(DisasContext *dc, uint32_t insn)
1058 {
1059 uint32_t op0;
1060 uint32_t ra, rb;
1061 op0 = extract32(insn, 0, 4);
1062 ra = extract32(insn, 16, 5);
1063 rb = extract32(insn, 11, 5);
1064
1065 switch (op0) {
1066 case 0x0001: /* l.mac */
1067 LOG_DIS("l.mac r%d, r%d\n", ra, rb);
1068 {
1069 TCGv_i32 t0 = tcg_temp_new_i32();
1070 TCGv_i64 t1 = tcg_temp_new_i64();
1071 TCGv_i64 t2 = tcg_temp_new_i64();
1072 tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
1073 tcg_gen_ext_i32_i64(t1, t0);
1074 tcg_gen_concat_i32_i64(t2, maclo, machi);
1075 tcg_gen_add_i64(t2, t2, t1);
1076 tcg_gen_extrl_i64_i32(maclo, t2);
1077 tcg_gen_shri_i64(t2, t2, 32);
1078 tcg_gen_extrl_i64_i32(machi, t2);
1079 tcg_temp_free_i32(t0);
1080 tcg_temp_free_i64(t1);
1081 tcg_temp_free_i64(t2);
1082 }
1083 break;
1084
1085 case 0x0002: /* l.msb */
1086 LOG_DIS("l.msb r%d, r%d\n", ra, rb);
1087 {
1088 TCGv_i32 t0 = tcg_temp_new_i32();
1089 TCGv_i64 t1 = tcg_temp_new_i64();
1090 TCGv_i64 t2 = tcg_temp_new_i64();
1091 tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
1092 tcg_gen_ext_i32_i64(t1, t0);
1093 tcg_gen_concat_i32_i64(t2, maclo, machi);
1094 tcg_gen_sub_i64(t2, t2, t1);
1095 tcg_gen_extrl_i64_i32(maclo, t2);
1096 tcg_gen_shri_i64(t2, t2, 32);
1097 tcg_gen_extrl_i64_i32(machi, t2);
1098 tcg_temp_free_i32(t0);
1099 tcg_temp_free_i64(t1);
1100 tcg_temp_free_i64(t2);
1101 }
1102 break;
1103
1104 default:
1105 gen_illegal_exception(dc);
1106 break;
1107 }
1108 }
1109
1110 static void dec_logic(DisasContext *dc, uint32_t insn)
1111 {
1112 uint32_t op0;
1113 uint32_t rd, ra, L6;
1114 op0 = extract32(insn, 6, 2);
1115 rd = extract32(insn, 21, 5);
1116 ra = extract32(insn, 16, 5);
1117 L6 = extract32(insn, 0, 6);
1118
1119 switch (op0) {
1120 case 0x00: /* l.slli */
1121 LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6);
1122 tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1123 break;
1124
1125 case 0x01: /* l.srli */
1126 LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6);
1127 tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1128 break;
1129
1130 case 0x02: /* l.srai */
1131 LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6);
1132 tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break;
1133
1134 case 0x03: /* l.rori */
1135 LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6);
1136 tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
1137 break;
1138
1139 default:
1140 gen_illegal_exception(dc);
1141 break;
1142 }
1143 }
1144
1145 static void dec_M(DisasContext *dc, uint32_t insn)
1146 {
1147 uint32_t op0;
1148 uint32_t rd;
1149 uint32_t K16;
1150 op0 = extract32(insn, 16, 1);
1151 rd = extract32(insn, 21, 5);
1152 K16 = extract32(insn, 0, 16);
1153
1154 switch (op0) {
1155 case 0x0: /* l.movhi */
1156 LOG_DIS("l.movhi r%d, %d\n", rd, K16);
1157 tcg_gen_movi_tl(cpu_R[rd], (K16 << 16));
1158 break;
1159
1160 case 0x1: /* l.macrc */
1161 LOG_DIS("l.macrc r%d\n", rd);
1162 tcg_gen_mov_tl(cpu_R[rd], maclo);
1163 tcg_gen_movi_tl(maclo, 0x0);
1164 tcg_gen_movi_tl(machi, 0x0);
1165 break;
1166
1167 default:
1168 gen_illegal_exception(dc);
1169 break;
1170 }
1171 }
1172
1173 static void dec_comp(DisasContext *dc, uint32_t insn)
1174 {
1175 uint32_t op0;
1176 uint32_t ra, rb;
1177
1178 op0 = extract32(insn, 21, 5);
1179 ra = extract32(insn, 16, 5);
1180 rb = extract32(insn, 11, 5);
1181
1182 tcg_gen_movi_i32(env_btaken, 0x0);
1183 /* unsigned integers */
1184 tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]);
1185 tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]);
1186
1187 switch (op0) {
1188 case 0x0: /* l.sfeq */
1189 LOG_DIS("l.sfeq r%d, r%d\n", ra, rb);
1190 tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]);
1191 break;
1192
1193 case 0x1: /* l.sfne */
1194 LOG_DIS("l.sfne r%d, r%d\n", ra, rb);
1195 tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]);
1196 break;
1197
1198 case 0x2: /* l.sfgtu */
1199 LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb);
1200 tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]);
1201 break;
1202
1203 case 0x3: /* l.sfgeu */
1204 LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb);
1205 tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]);
1206 break;
1207
1208 case 0x4: /* l.sfltu */
1209 LOG_DIS("l.sfltu r%d, r%d\n", ra, rb);
1210 tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]);
1211 break;
1212
1213 case 0x5: /* l.sfleu */
1214 LOG_DIS("l.sfleu r%d, r%d\n", ra, rb);
1215 tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]);
1216 break;
1217
1218 case 0xa: /* l.sfgts */
1219 LOG_DIS("l.sfgts r%d, r%d\n", ra, rb);
1220 tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]);
1221 break;
1222
1223 case 0xb: /* l.sfges */
1224 LOG_DIS("l.sfges r%d, r%d\n", ra, rb);
1225 tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]);
1226 break;
1227
1228 case 0xc: /* l.sflts */
1229 LOG_DIS("l.sflts r%d, r%d\n", ra, rb);
1230 tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]);
1231 break;
1232
1233 case 0xd: /* l.sfles */
1234 LOG_DIS("l.sfles r%d, r%d\n", ra, rb);
1235 tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]);
1236 break;
1237
1238 default:
1239 gen_illegal_exception(dc);
1240 break;
1241 }
1242 wb_SR_F();
1243 }
1244
1245 static void dec_compi(DisasContext *dc, uint32_t insn)
1246 {
1247 uint32_t op0;
1248 uint32_t ra, I16;
1249
1250 op0 = extract32(insn, 21, 5);
1251 ra = extract32(insn, 16, 5);
1252 I16 = extract32(insn, 0, 16);
1253
1254 tcg_gen_movi_i32(env_btaken, 0x0);
1255 I16 = sign_extend(I16, 16);
1256
1257 switch (op0) {
1258 case 0x0: /* l.sfeqi */
1259 LOG_DIS("l.sfeqi r%d, %d\n", ra, I16);
1260 tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16);
1261 break;
1262
1263 case 0x1: /* l.sfnei */
1264 LOG_DIS("l.sfnei r%d, %d\n", ra, I16);
1265 tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16);
1266 break;
1267
1268 case 0x2: /* l.sfgtui */
1269 LOG_DIS("l.sfgtui r%d, %d\n", ra, I16);
1270 tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16);
1271 break;
1272
1273 case 0x3: /* l.sfgeui */
1274 LOG_DIS("l.sfgeui r%d, %d\n", ra, I16);
1275 tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16);
1276 break;
1277
1278 case 0x4: /* l.sfltui */
1279 LOG_DIS("l.sfltui r%d, %d\n", ra, I16);
1280 tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16);
1281 break;
1282
1283 case 0x5: /* l.sfleui */
1284 LOG_DIS("l.sfleui r%d, %d\n", ra, I16);
1285 tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16);
1286 break;
1287
1288 case 0xa: /* l.sfgtsi */
1289 LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16);
1290 tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16);
1291 break;
1292
1293 case 0xb: /* l.sfgesi */
1294 LOG_DIS("l.sfgesi r%d, %d\n", ra, I16);
1295 tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16);
1296 break;
1297
1298 case 0xc: /* l.sfltsi */
1299 LOG_DIS("l.sfltsi r%d, %d\n", ra, I16);
1300 tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16);
1301 break;
1302
1303 case 0xd: /* l.sflesi */
1304 LOG_DIS("l.sflesi r%d, %d\n", ra, I16);
1305 tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16);
1306 break;
1307
1308 default:
1309 gen_illegal_exception(dc);
1310 break;
1311 }
1312 wb_SR_F();
1313 }
1314
1315 static void dec_sys(DisasContext *dc, uint32_t insn)
1316 {
1317 uint32_t op0;
1318 #ifdef OPENRISC_DISAS
1319 uint32_t K16;
1320 #endif
1321 op0 = extract32(insn, 16, 10);
1322 #ifdef OPENRISC_DISAS
1323 K16 = extract32(insn, 0, 16);
1324 #endif
1325
1326 switch (op0) {
1327 case 0x000: /* l.sys */
1328 LOG_DIS("l.sys %d\n", K16);
1329 tcg_gen_movi_tl(cpu_pc, dc->pc);
1330 gen_exception(dc, EXCP_SYSCALL);
1331 dc->is_jmp = DISAS_UPDATE;
1332 break;
1333
1334 case 0x100: /* l.trap */
1335 LOG_DIS("l.trap %d\n", K16);
1336 #if defined(CONFIG_USER_ONLY)
1337 return;
1338 #else
1339 if (dc->mem_idx == MMU_USER_IDX) {
1340 gen_illegal_exception(dc);
1341 return;
1342 }
1343 tcg_gen_movi_tl(cpu_pc, dc->pc);
1344 gen_exception(dc, EXCP_TRAP);
1345 #endif
1346 break;
1347
1348 case 0x300: /* l.csync */
1349 LOG_DIS("l.csync\n");
1350 #if defined(CONFIG_USER_ONLY)
1351 return;
1352 #else
1353 if (dc->mem_idx == MMU_USER_IDX) {
1354 gen_illegal_exception(dc);
1355 return;
1356 }
1357 #endif
1358 break;
1359
1360 case 0x200: /* l.msync */
1361 LOG_DIS("l.msync\n");
1362 #if defined(CONFIG_USER_ONLY)
1363 return;
1364 #else
1365 if (dc->mem_idx == MMU_USER_IDX) {
1366 gen_illegal_exception(dc);
1367 return;
1368 }
1369 #endif
1370 break;
1371
1372 case 0x270: /* l.psync */
1373 LOG_DIS("l.psync\n");
1374 #if defined(CONFIG_USER_ONLY)
1375 return;
1376 #else
1377 if (dc->mem_idx == MMU_USER_IDX) {
1378 gen_illegal_exception(dc);
1379 return;
1380 }
1381 #endif
1382 break;
1383
1384 default:
1385 gen_illegal_exception(dc);
1386 break;
1387 }
1388 }
1389
1390 static void dec_float(DisasContext *dc, uint32_t insn)
1391 {
1392 uint32_t op0;
1393 uint32_t ra, rb, rd;
1394 op0 = extract32(insn, 0, 8);
1395 ra = extract32(insn, 16, 5);
1396 rb = extract32(insn, 11, 5);
1397 rd = extract32(insn, 21, 5);
1398
1399 switch (op0) {
1400 case 0x00: /* lf.add.s */
1401 LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb);
1402 gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1403 break;
1404
1405 case 0x01: /* lf.sub.s */
1406 LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb);
1407 gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1408 break;
1409
1410
1411 case 0x02: /* lf.mul.s */
1412 LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb);
1413 if (ra != 0 && rb != 0) {
1414 gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1415 } else {
1416 tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
1417 tcg_gen_movi_i32(cpu_R[rd], 0x0);
1418 }
1419 break;
1420
1421 case 0x03: /* lf.div.s */
1422 LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb);
1423 gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1424 break;
1425
1426 case 0x04: /* lf.itof.s */
1427 LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
1428 gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]);
1429 break;
1430
1431 case 0x05: /* lf.ftoi.s */
1432 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
1433 gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]);
1434 break;
1435
1436 case 0x06: /* lf.rem.s */
1437 LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb);
1438 gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1439 break;
1440
1441 case 0x07: /* lf.madd.s */
1442 LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb);
1443 gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1444 break;
1445
1446 case 0x08: /* lf.sfeq.s */
1447 LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb);
1448 gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1449 break;
1450
1451 case 0x09: /* lf.sfne.s */
1452 LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb);
1453 gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1454 break;
1455
1456 case 0x0a: /* lf.sfgt.s */
1457 LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb);
1458 gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1459 break;
1460
1461 case 0x0b: /* lf.sfge.s */
1462 LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb);
1463 gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1464 break;
1465
1466 case 0x0c: /* lf.sflt.s */
1467 LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb);
1468 gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1469 break;
1470
1471 case 0x0d: /* lf.sfle.s */
1472 LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb);
1473 gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1474 break;
1475
1476 /* not used yet, open it when we need or64. */
1477 /*#ifdef TARGET_OPENRISC64
1478 case 0x10: lf.add.d
1479 LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb);
1480 check_of64s(dc);
1481 gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1482 break;
1483
1484 case 0x11: lf.sub.d
1485 LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb);
1486 check_of64s(dc);
1487 gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1488 break;
1489
1490 case 0x12: lf.mul.d
1491 LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb);
1492 check_of64s(dc);
1493 if (ra != 0 && rb != 0) {
1494 gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1495 } else {
1496 tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
1497 tcg_gen_movi_i64(cpu_R[rd], 0x0);
1498 }
1499 break;
1500
1501 case 0x13: lf.div.d
1502 LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb);
1503 check_of64s(dc);
1504 gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1505 break;
1506
1507 case 0x14: lf.itof.d
1508 LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
1509 check_of64s(dc);
1510 gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]);
1511 break;
1512
1513 case 0x15: lf.ftoi.d
1514 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
1515 check_of64s(dc);
1516 gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]);
1517 break;
1518
1519 case 0x16: lf.rem.d
1520 LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb);
1521 check_of64s(dc);
1522 gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1523 break;
1524
1525 case 0x17: lf.madd.d
1526 LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb);
1527 check_of64s(dc);
1528 gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
1529 break;
1530
1531 case 0x18: lf.sfeq.d
1532 LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb);
1533 check_of64s(dc);
1534 gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1535 break;
1536
1537 case 0x1a: lf.sfgt.d
1538 LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb);
1539 check_of64s(dc);
1540 gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1541 break;
1542
1543 case 0x1b: lf.sfge.d
1544 LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb);
1545 check_of64s(dc);
1546 gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1547 break;
1548
1549 case 0x19: lf.sfne.d
1550 LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb);
1551 check_of64s(dc);
1552 gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1553 break;
1554
1555 case 0x1c: lf.sflt.d
1556 LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb);
1557 check_of64s(dc);
1558 gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1559 break;
1560
1561 case 0x1d: lf.sfle.d
1562 LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb);
1563 check_of64s(dc);
1564 gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
1565 break;
1566 #endif*/
1567
1568 default:
1569 gen_illegal_exception(dc);
1570 break;
1571 }
1572 wb_SR_F();
1573 }
1574
1575 static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu)
1576 {
1577 uint32_t op0;
1578 uint32_t insn;
1579 insn = cpu_ldl_code(&cpu->env, dc->pc);
1580 op0 = extract32(insn, 26, 6);
1581
1582 switch (op0) {
1583 case 0x06:
1584 dec_M(dc, insn);
1585 break;
1586
1587 case 0x08:
1588 dec_sys(dc, insn);
1589 break;
1590
1591 case 0x2e:
1592 dec_logic(dc, insn);
1593 break;
1594
1595 case 0x2f:
1596 dec_compi(dc, insn);
1597 break;
1598
1599 case 0x31:
1600 dec_mac(dc, insn);
1601 break;
1602
1603 case 0x32:
1604 dec_float(dc, insn);
1605 break;
1606
1607 case 0x38:
1608 dec_calc(dc, insn);
1609 break;
1610
1611 case 0x39:
1612 dec_comp(dc, insn);
1613 break;
1614
1615 default:
1616 dec_misc(dc, insn);
1617 break;
1618 }
1619 }
1620
1621 void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb)
1622 {
1623 OpenRISCCPU *cpu = openrisc_env_get_cpu(env);
1624 CPUState *cs = CPU(cpu);
1625 struct DisasContext ctx, *dc = &ctx;
1626 uint32_t pc_start;
1627 uint32_t next_page_start;
1628 int num_insns;
1629 int max_insns;
1630
1631 pc_start = tb->pc;
1632 dc->tb = tb;
1633
1634 dc->is_jmp = DISAS_NEXT;
1635 dc->ppc = pc_start;
1636 dc->pc = pc_start;
1637 dc->flags = cpu->env.cpucfgr;
1638 dc->mem_idx = cpu_mmu_index(&cpu->env, false);
1639 dc->synced_flags = dc->tb_flags = tb->flags;
1640 dc->delayed_branch = !!(dc->tb_flags & D_FLAG);
1641 dc->singlestep_enabled = cs->singlestep_enabled;
1642 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
1643 qemu_log("-----------------------------------------\n");
1644 log_cpu_state(CPU(cpu), 0);
1645 }
1646
1647 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
1648 num_insns = 0;
1649 max_insns = tb->cflags & CF_COUNT_MASK;
1650
1651 if (max_insns == 0) {
1652 max_insns = CF_COUNT_MASK;
1653 }
1654 if (max_insns > TCG_MAX_INSNS) {
1655 max_insns = TCG_MAX_INSNS;
1656 }
1657
1658 gen_tb_start(tb);
1659
1660 do {
1661 tcg_gen_insn_start(dc->pc);
1662 num_insns++;
1663
1664 if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
1665 tcg_gen_movi_tl(cpu_pc, dc->pc);
1666 gen_exception(dc, EXCP_DEBUG);
1667 dc->is_jmp = DISAS_UPDATE;
1668 /* The address covered by the breakpoint must be included in
1669 [tb->pc, tb->pc + tb->size) in order to for it to be
1670 properly cleared -- thus we increment the PC here so that
1671 the logic setting tb->size below does the right thing. */
1672 dc->pc += 4;
1673 break;
1674 }
1675
1676 if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
1677 gen_io_start();
1678 }
1679 dc->ppc = dc->pc - 4;
1680 dc->npc = dc->pc + 4;
1681 tcg_gen_movi_tl(cpu_ppc, dc->ppc);
1682 tcg_gen_movi_tl(cpu_npc, dc->npc);
1683 disas_openrisc_insn(dc, cpu);
1684 dc->pc = dc->npc;
1685 /* delay slot */
1686 if (dc->delayed_branch) {
1687 dc->delayed_branch--;
1688 if (!dc->delayed_branch) {
1689 dc->tb_flags &= ~D_FLAG;
1690 gen_sync_flags(dc);
1691 tcg_gen_mov_tl(cpu_pc, jmp_pc);
1692 tcg_gen_mov_tl(cpu_npc, jmp_pc);
1693 tcg_gen_movi_tl(jmp_pc, 0);
1694 tcg_gen_exit_tb(0);
1695 dc->is_jmp = DISAS_JUMP;
1696 break;
1697 }
1698 }
1699 } while (!dc->is_jmp
1700 && !tcg_op_buf_full()
1701 && !cs->singlestep_enabled
1702 && !singlestep
1703 && (dc->pc < next_page_start)
1704 && num_insns < max_insns);
1705
1706 if (tb->cflags & CF_LAST_IO) {
1707 gen_io_end();
1708 }
1709 if (dc->is_jmp == DISAS_NEXT) {
1710 dc->is_jmp = DISAS_UPDATE;
1711 tcg_gen_movi_tl(cpu_pc, dc->pc);
1712 }
1713 if (unlikely(cs->singlestep_enabled)) {
1714 if (dc->is_jmp == DISAS_NEXT) {
1715 tcg_gen_movi_tl(cpu_pc, dc->pc);
1716 }
1717 gen_exception(dc, EXCP_DEBUG);
1718 } else {
1719 switch (dc->is_jmp) {
1720 case DISAS_NEXT:
1721 gen_goto_tb(dc, 0, dc->pc);
1722 break;
1723 default:
1724 case DISAS_JUMP:
1725 break;
1726 case DISAS_UPDATE:
1727 /* indicate that the hash table must be used
1728 to find the next TB */
1729 tcg_gen_exit_tb(0);
1730 break;
1731 case DISAS_TB_JUMP:
1732 /* nothing more to generate */
1733 break;
1734 }
1735 }
1736
1737 gen_tb_end(tb, num_insns);
1738
1739 tb->size = dc->pc - pc_start;
1740 tb->icount = num_insns;
1741
1742 #ifdef DEBUG_DISAS
1743 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
1744 qemu_log("\n");
1745 log_target_disas(cs, pc_start, dc->pc - pc_start, 0);
1746 qemu_log("\nisize=%d osize=%d\n",
1747 dc->pc - pc_start, tcg_op_buf_count());
1748 }
1749 #endif
1750 }
1751
1752 void openrisc_cpu_dump_state(CPUState *cs, FILE *f,
1753 fprintf_function cpu_fprintf,
1754 int flags)
1755 {
1756 OpenRISCCPU *cpu = OPENRISC_CPU(cs);
1757 CPUOpenRISCState *env = &cpu->env;
1758 int i;
1759
1760 cpu_fprintf(f, "PC=%08x\n", env->pc);
1761 for (i = 0; i < 32; ++i) {
1762 cpu_fprintf(f, "R%02d=%08x%c", i, env->gpr[i],
1763 (i % 4) == 3 ? '\n' : ' ');
1764 }
1765 }
1766
1767 void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb,
1768 target_ulong *data)
1769 {
1770 env->pc = data[0];
1771 }
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