Statistics
| Branch: | Revision:

root / target-alpha / translate.c @ f18cd223

History | View | Annotate | Download (73.7 kB)

1
/*
2
 *  Alpha emulation cpu translation for qemu.
3
 *
4
 *  Copyright (c) 2007 Jocelyn Mayer
5
 *
6
 * This library is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2 of the License, or (at your option) any later version.
10
 *
11
 * This library is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with this library; if not, write to the Free Software
18
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19
 */
20

    
21
#include <stdint.h>
22
#include <stdlib.h>
23
#include <stdio.h>
24

    
25
#include "cpu.h"
26
#include "exec-all.h"
27
#include "disas.h"
28
#include "host-utils.h"
29
#include "helper.h"
30
#include "tcg-op.h"
31
#include "qemu-common.h"
32

    
33
#define DO_SINGLE_STEP
34
#define GENERATE_NOP
35
#define ALPHA_DEBUG_DISAS
36
#define DO_TB_FLUSH
37

    
38
typedef struct DisasContext DisasContext;
39
struct DisasContext {
40
    uint64_t pc;
41
    int mem_idx;
42
#if !defined (CONFIG_USER_ONLY)
43
    int pal_mode;
44
#endif
45
    uint32_t amask;
46
};
47

    
48
/* global register indexes */
49
static TCGv cpu_env;
50
static TCGv cpu_ir[31];
51
static TCGv cpu_fir[31];
52
static TCGv cpu_pc;
53

    
54
/* dyngen register indexes */
55
static TCGv cpu_T[2];
56

    
57
/* register names */
58
static char cpu_reg_names[10*4+21*5 + 10*5+21*6];
59

    
60
#include "gen-icount.h"
61

    
62
static void alpha_translate_init(void)
63
{
64
    int i;
65
    char *p;
66
    static int done_init = 0;
67

    
68
    if (done_init)
69
        return;
70

    
71
    cpu_env = tcg_global_reg_new(TCG_TYPE_PTR, TCG_AREG0, "env");
72

    
73
#if TARGET_LONG_BITS > HOST_LONG_BITS
74
    cpu_T[0] = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
75
                                  offsetof(CPUState, t0), "T0");
76
    cpu_T[1] = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
77
                                  offsetof(CPUState, t1), "T1");
78
#else
79
    cpu_T[0] = tcg_global_reg_new(TCG_TYPE_I64, TCG_AREG1, "T0");
80
    cpu_T[1] = tcg_global_reg_new(TCG_TYPE_I64, TCG_AREG2, "T1");
81
#endif
82

    
83
    p = cpu_reg_names;
84
    for (i = 0; i < 31; i++) {
85
        sprintf(p, "ir%d", i);
86
        cpu_ir[i] = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
87
                                       offsetof(CPUState, ir[i]), p);
88
        p += (i < 10) ? 4 : 5;
89

    
90
        sprintf(p, "fir%d", i);
91
        cpu_fir[i] = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
92
                                        offsetof(CPUState, fir[i]), p);
93
        p += (i < 10) ? 5 : 6;
94
    }
95

    
96
    cpu_pc = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
97
                                offsetof(CPUState, pc), "pc");
98

    
99
    /* register helpers */
100
#undef DEF_HELPER
101
#define DEF_HELPER(ret, name, params) tcg_register_helper(name, #name);
102
#include "helper.h"
103

    
104
    done_init = 1;
105
}
106

    
107
static always_inline void gen_op_nop (void)
108
{
109
#if defined(GENERATE_NOP)
110
    gen_op_no_op();
111
#endif
112
}
113

    
114
/* Memory moves */
115
#if defined(CONFIG_USER_ONLY)
116
#define OP_LD_TABLE(width)                                                    \
117
static GenOpFunc *gen_op_ld##width[] = {                                      \
118
    &gen_op_ld##width##_raw,                                                  \
119
}
120
#define OP_ST_TABLE(width)                                                    \
121
static GenOpFunc *gen_op_st##width[] = {                                      \
122
    &gen_op_st##width##_raw,                                                  \
123
}
124
#else
125
#define OP_LD_TABLE(width)                                                    \
126
static GenOpFunc *gen_op_ld##width[] = {                                      \
127
    &gen_op_ld##width##_kernel,                                               \
128
    &gen_op_ld##width##_executive,                                            \
129
    &gen_op_ld##width##_supervisor,                                           \
130
    &gen_op_ld##width##_user,                                                 \
131
}
132
#define OP_ST_TABLE(width)                                                    \
133
static GenOpFunc *gen_op_st##width[] = {                                      \
134
    &gen_op_st##width##_kernel,                                               \
135
    &gen_op_st##width##_executive,                                            \
136
    &gen_op_st##width##_supervisor,                                           \
137
    &gen_op_st##width##_user,                                                 \
138
}
139
#endif
140

    
141
#define GEN_LD(width)                                                         \
142
OP_LD_TABLE(width);                                                           \
143
static always_inline void gen_ld##width (DisasContext *ctx)                   \
144
{                                                                             \
145
    (*gen_op_ld##width[ctx->mem_idx])();                                      \
146
}
147

    
148
#define GEN_ST(width)                                                         \
149
OP_ST_TABLE(width);                                                           \
150
static always_inline void gen_st##width (DisasContext *ctx)                   \
151
{                                                                             \
152
    (*gen_op_st##width[ctx->mem_idx])();                                      \
153
}
154

    
155
GEN_LD(l);
156
GEN_ST(l);
157
GEN_LD(q);
158
GEN_ST(q);
159
GEN_LD(l_l);
160
GEN_ST(l_c);
161
GEN_LD(q_l);
162
GEN_ST(q_c);
163

    
164
static always_inline void gen_excp (DisasContext *ctx,
165
                                    int exception, int error_code)
166
{
167
    TCGv tmp1, tmp2;
168

    
169
    tcg_gen_movi_i64(cpu_pc, ctx->pc);
170
    tmp1 = tcg_const_i32(exception);
171
    tmp2 = tcg_const_i32(error_code);
172
    tcg_gen_helper_0_2(helper_excp, tmp1, tmp2);
173
    tcg_temp_free(tmp2);
174
    tcg_temp_free(tmp1);
175
}
176

    
177
static always_inline void gen_invalid (DisasContext *ctx)
178
{
179
    gen_excp(ctx, EXCP_OPCDEC, 0);
180
}
181

    
182
static always_inline void gen_load_mem_dyngen (DisasContext *ctx,
183
                                        void (*gen_load_op)(DisasContext *ctx),
184
                                        int ra, int rb, int32_t disp16,
185
                                        int clear)
186
{
187
    if (ra == 31 && disp16 == 0) {
188
        /* UNOP */
189
        gen_op_nop();
190
    } else {
191
        if (rb != 31)
192
            tcg_gen_addi_i64(cpu_T[0], cpu_ir[rb], disp16);
193
        else
194
            tcg_gen_movi_i64(cpu_T[0], disp16);
195
        if (clear)
196
            tcg_gen_andi_i64(cpu_T[0], cpu_T[0], ~0x7);
197
        (*gen_load_op)(ctx);
198
        if (ra != 31)
199
            tcg_gen_mov_i64(cpu_ir[ra], cpu_T[1]);
200
    }
201
}
202

    
203
static always_inline void gen_qemu_ldf (TCGv t0, TCGv t1, int flags)
204
{
205
    TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
206
    tcg_gen_qemu_ld32u(tmp, t1, flags);
207
    tcg_gen_helper_1_1(helper_memory_to_f, t0, tmp);
208
    tcg_temp_free(tmp);
209
}
210

    
211
static always_inline void gen_qemu_ldg (TCGv t0, TCGv t1, int flags)
212
{
213
    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
214
    tcg_gen_qemu_ld64(tmp, t1, flags);
215
    tcg_gen_helper_1_1(helper_memory_to_g, t0, tmp);
216
    tcg_temp_free(tmp);
217
}
218

    
219
static always_inline void gen_qemu_lds (TCGv t0, TCGv t1, int flags)
220
{
221
    TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
222
    tcg_gen_qemu_ld32u(tmp, t1, flags);
223
    tcg_gen_helper_1_1(helper_memory_to_s, t0, tmp);
224
    tcg_temp_free(tmp);
225
}
226

    
227
static always_inline void gen_load_mem (DisasContext *ctx,
228
                                        void (*tcg_gen_qemu_load)(TCGv t0, TCGv t1, int flags),
229
                                        int ra, int rb, int32_t disp16,
230
                                        int fp, int clear)
231
{
232
    TCGv addr;
233

    
234
    if (unlikely(ra == 31))
235
        return;
236

    
237
    addr = tcg_temp_new(TCG_TYPE_I64);
238
    if (rb != 31) {
239
        tcg_gen_addi_i64(addr, cpu_ir[rb], disp16);
240
        if (clear)
241
            tcg_gen_andi_i64(addr, addr, ~0x7);
242
    } else {
243
        if (clear)
244
            disp16 &= ~0x7;
245
        tcg_gen_movi_i64(addr, disp16);
246
    }
247
    if (fp)
248
        tcg_gen_qemu_load(cpu_fir[ra], addr, ctx->mem_idx);
249
    else
250
        tcg_gen_qemu_load(cpu_ir[ra], addr, ctx->mem_idx);
251
    tcg_temp_free(addr);
252
}
253

    
254
static always_inline void gen_store_mem_dyngen (DisasContext *ctx,
255
                                         void (*gen_store_op)(DisasContext *ctx),
256
                                         int ra, int rb, int32_t disp16,
257
                                         int clear)
258
{
259
    if (rb != 31)
260
        tcg_gen_addi_i64(cpu_T[0], cpu_ir[rb], disp16);
261
    else
262
        tcg_gen_movi_i64(cpu_T[0], disp16);
263
    if (clear)
264
        tcg_gen_andi_i64(cpu_T[0], cpu_T[0], ~0x7);
265
    if (ra != 31)
266
        tcg_gen_mov_i64(cpu_T[1], cpu_ir[ra]);
267
    else
268
        tcg_gen_movi_i64(cpu_T[1], 0);
269
    (*gen_store_op)(ctx);
270
}
271

    
272
static always_inline void gen_qemu_stf (TCGv t0, TCGv t1, int flags)
273
{
274
    TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
275
    tcg_gen_helper_1_1(helper_f_to_memory, tmp, t0);
276
    tcg_gen_qemu_st32(tmp, t1, flags);
277
    tcg_temp_free(tmp);
278
}
279

    
280
static always_inline void gen_qemu_stg (TCGv t0, TCGv t1, int flags)
281
{
282
    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
283
    tcg_gen_helper_1_1(helper_g_to_memory, tmp, t0);
284
    tcg_gen_qemu_st64(tmp, t1, flags);
285
    tcg_temp_free(tmp);
286
}
287

    
288
static always_inline void gen_qemu_sts (TCGv t0, TCGv t1, int flags)
289
{
290
    TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
291
    tcg_gen_helper_1_1(helper_s_to_memory, tmp, t0);
292
    tcg_gen_qemu_st32(tmp, t1, flags);
293
    tcg_temp_free(tmp);
294
}
295

    
296
static always_inline void gen_store_mem (DisasContext *ctx,
297
                                         void (*tcg_gen_qemu_store)(TCGv t0, TCGv t1, int flags),
298
                                         int ra, int rb, int32_t disp16,
299
                                         int fp, int clear)
300
{
301
    TCGv addr = tcg_temp_new(TCG_TYPE_I64);
302
    if (rb != 31) {
303
        tcg_gen_addi_i64(addr, cpu_ir[rb], disp16);
304
        if (clear)
305
            tcg_gen_andi_i64(addr, addr, ~0x7);
306
    } else {
307
        if (clear)
308
            disp16 &= ~0x7;
309
        tcg_gen_movi_i64(addr, disp16);
310
    }
311
    if (ra != 31) {
312
        if (fp)
313
            tcg_gen_qemu_store(cpu_fir[ra], addr, ctx->mem_idx);
314
        else
315
            tcg_gen_qemu_store(cpu_ir[ra], addr, ctx->mem_idx);
316
    } else {
317
        TCGv zero = tcg_const_i64(0);
318
        tcg_gen_qemu_store(zero, addr, ctx->mem_idx);
319
        tcg_temp_free(zero);
320
    }
321
    tcg_temp_free(addr);
322
}
323

    
324
static always_inline void gen_bcond (DisasContext *ctx,
325
                                     TCGCond cond,
326
                                     int ra, int32_t disp16, int mask)
327
{
328
    int l1, l2;
329

    
330
    l1 = gen_new_label();
331
    l2 = gen_new_label();
332
    if (likely(ra != 31)) {
333
        if (mask) {
334
            TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
335
            tcg_gen_andi_i64(tmp, cpu_ir[ra], 1);
336
            tcg_gen_brcondi_i64(cond, tmp, 0, l1);
337
            tcg_temp_free(tmp);
338
        } else
339
            tcg_gen_brcondi_i64(cond, cpu_ir[ra], 0, l1);
340
    } else {
341
        /* Very uncommon case - Do not bother to optimize.  */
342
        TCGv tmp = tcg_const_i64(0);
343
        tcg_gen_brcondi_i64(cond, tmp, 0, l1);
344
        tcg_temp_free(tmp);
345
    }
346
    tcg_gen_movi_i64(cpu_pc, ctx->pc);
347
    tcg_gen_br(l2);
348
    gen_set_label(l1);
349
    tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp16 << 2));
350
    gen_set_label(l2);
351
}
352

    
353
static always_inline void gen_fbcond (DisasContext *ctx,
354
                                      void* func,
355
                                      int ra, int32_t disp16)
356
{
357
    int l1, l2;
358
    TCGv tmp;
359

    
360
    l1 = gen_new_label();
361
    l2 = gen_new_label();
362
    if (ra != 31) {
363
        tmp = tcg_temp_new(TCG_TYPE_I64);
364
        tcg_gen_helper_1_1(func, tmp, cpu_fir[ra]);
365
    } else  {
366
        tmp = tcg_const_i64(0);
367
        tcg_gen_helper_1_1(func, tmp, tmp);
368
    }
369
    tcg_gen_brcondi_i64(TCG_COND_NE, tmp, 0, l1);
370
    tcg_gen_movi_i64(cpu_pc, ctx->pc);
371
    tcg_gen_br(l2);
372
    gen_set_label(l1);
373
    tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp16 << 2));
374
    gen_set_label(l2);
375
}
376

    
377
static always_inline void gen_cmov (DisasContext *ctx,
378
                                    TCGCond inv_cond,
379
                                    int ra, int rb, int rc,
380
                                    int islit, uint8_t lit, int mask)
381
{
382
    int l1;
383

    
384
    if (unlikely(rc == 31))
385
        return;
386

    
387
    l1 = gen_new_label();
388

    
389
    if (ra != 31) {
390
        if (mask) {
391
            TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
392
            tcg_gen_andi_i64(tmp, cpu_ir[ra], 1);
393
            tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1);
394
            tcg_temp_free(tmp);
395
        } else
396
            tcg_gen_brcondi_i64(inv_cond, cpu_ir[ra], 0, l1);
397
    } else {
398
        /* Very uncommon case - Do not bother to optimize.  */
399
        TCGv tmp = tcg_const_i64(0);
400
        tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1);
401
        tcg_temp_free(tmp);
402
    }
403

    
404
    if (islit)
405
        tcg_gen_movi_i64(cpu_ir[rc], lit);
406
    else
407
        tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
408
    gen_set_label(l1);
409
}
410

    
411
static always_inline void gen_farith2 (void *helper,
412
                                       int rb, int rc)
413
{
414
    if (unlikely(rc == 31))
415
      return;
416

    
417
    if (rb != 31)
418
        tcg_gen_helper_1_1(helper, cpu_fir[rc], cpu_fir[rb]);
419
    else {
420
        TCGv tmp = tcg_const_i64(0);
421
        tcg_gen_helper_1_1(helper, cpu_fir[rc], tmp);
422
        tcg_temp_free(tmp);
423
    }
424
}
425

    
426
static always_inline void gen_farith3 (void *helper,
427
                                       int ra, int rb, int rc)
428
{
429
    if (unlikely(rc == 31))
430
        return;
431

    
432
    if (ra != 31) {
433
        if (rb != 31)
434
            tcg_gen_helper_1_2(helper, cpu_fir[rc], cpu_fir[ra], cpu_fir[rb]);
435
        else {
436
            TCGv tmp = tcg_const_i64(0);
437
            tcg_gen_helper_1_2(helper, cpu_fir[rc], cpu_fir[ra], tmp);
438
            tcg_temp_free(tmp);
439
        }
440
    } else {
441
        TCGv tmp = tcg_const_i64(0);
442
        if (rb != 31)
443
            tcg_gen_helper_1_2(helper, cpu_fir[rc], tmp, cpu_fir[rb]);
444
        else
445
            tcg_gen_helper_1_2(helper, cpu_fir[rc], tmp, tmp);
446
        tcg_temp_free(tmp);
447
    }
448
}
449

    
450
static always_inline void gen_fcmov (void *func,
451
                                     int ra, int rb, int rc)
452
{
453
    int l1;
454
    TCGv tmp;
455

    
456
    if (unlikely(rc == 31))
457
        return;
458

    
459
    l1 = gen_new_label();
460
    tmp = tcg_temp_new(TCG_TYPE_I64);
461
    if (ra != 31) {
462
        tmp = tcg_temp_new(TCG_TYPE_I64);
463
        tcg_gen_helper_1_1(func, tmp, cpu_fir[ra]);
464
    } else  {
465
        tmp = tcg_const_i64(0);
466
        tcg_gen_helper_1_1(func, tmp, tmp);
467
    }
468
    tcg_gen_brcondi_i64(TCG_COND_EQ, tmp, 0, l1);
469
    if (rb != 31)
470
        tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]);
471
    else
472
        tcg_gen_movi_i64(cpu_fir[rc], 0);
473
    gen_set_label(l1);
474
}
475

    
476
/* EXTWH, EXTWH, EXTLH, EXTQH */
477
static always_inline void gen_ext_h(void (*tcg_gen_ext_i64)(TCGv t0, TCGv t1),
478
                                    int ra, int rb, int rc,
479
                                    int islit, uint8_t lit)
480
{
481
    if (unlikely(rc == 31))
482
        return;
483

    
484
    if (ra != 31) {
485
        if (islit) {
486
            if (lit != 0)
487
                tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], 64 - ((lit & 7) * 8));
488
            else
489
                tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[ra]);
490
        } else {
491
            TCGv tmp1, tmp2;
492
            tmp1 = tcg_temp_new(TCG_TYPE_I64);
493
            tcg_gen_andi_i64(tmp1, cpu_ir[rb], 7);
494
            tcg_gen_shli_i64(tmp1, tmp1, 3);
495
            tmp2 = tcg_const_i64(64);
496
            tcg_gen_sub_i64(tmp1, tmp2, tmp1);
497
            tcg_temp_free(tmp2);
498
            tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], tmp1);
499
            tcg_temp_free(tmp1);
500
        }
501
        if (tcg_gen_ext_i64)
502
            tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]);
503
    } else
504
        tcg_gen_movi_i64(cpu_ir[rc], 0);
505
}
506

    
507
/* EXTBL, EXTWL, EXTWL, EXTLL, EXTQL */
508
static always_inline void gen_ext_l(void (*tcg_gen_ext_i64)(TCGv t0, TCGv t1),
509
                                    int ra, int rb, int rc,
510
                                    int islit, uint8_t lit)
511
{
512
    if (unlikely(rc == 31))
513
        return;
514

    
515
    if (ra != 31) {
516
        if (islit) {
517
                tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], (lit & 7) * 8);
518
        } else {
519
            TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
520
            tcg_gen_andi_i64(tmp, cpu_ir[rb], 7);
521
            tcg_gen_shli_i64(tmp, tmp, 3);
522
            tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], tmp);
523
            tcg_temp_free(tmp);
524
        }
525
        if (tcg_gen_ext_i64)
526
            tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]);
527
    } else
528
        tcg_gen_movi_i64(cpu_ir[rc], 0);
529
}
530

    
531
/* Code to call arith3 helpers */
532
static always_inline void gen_arith3_helper(void *helper,
533
                                            int ra, int rb, int rc,
534
                                            int islit, uint8_t lit)
535
{
536
    if (unlikely(rc == 31))
537
        return;
538

    
539
    if (ra != 31) {
540
        if (islit) {
541
            TCGv tmp = tcg_const_i64(lit);
542
            tcg_gen_helper_1_2(helper, cpu_ir[rc], cpu_ir[ra], tmp);
543
            tcg_temp_free(tmp);
544
        } else
545
            tcg_gen_helper_1_2(helper, cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
546
    } else {
547
        TCGv tmp1 = tcg_const_i64(0);
548
        if (islit) {
549
            TCGv tmp2 = tcg_const_i64(lit);
550
            tcg_gen_helper_1_2(helper, cpu_ir[rc], tmp1, tmp2);
551
            tcg_temp_free(tmp2);
552
        } else
553
            tcg_gen_helper_1_2(helper, cpu_ir[rc], tmp1, cpu_ir[rb]);
554
        tcg_temp_free(tmp1);
555
    }
556
}
557

    
558
static always_inline void gen_cmp(TCGCond cond,
559
                                  int ra, int rb, int rc,
560
                                  int islit, uint8_t lit)
561
{
562
    int l1, l2;
563
    TCGv tmp;
564

    
565
    if (unlikely(rc == 31))
566
    return;
567

    
568
    l1 = gen_new_label();
569
    l2 = gen_new_label();
570

    
571
    if (ra != 31) {
572
        tmp = tcg_temp_new(TCG_TYPE_I64);
573
        tcg_gen_mov_i64(tmp, cpu_ir[ra]);
574
    } else
575
        tmp = tcg_const_i64(0);
576
    if (islit)
577
        tcg_gen_brcondi_i64(cond, tmp, lit, l1);
578
    else
579
        tcg_gen_brcond_i64(cond, tmp, cpu_ir[rb], l1);
580

    
581
    tcg_gen_movi_i64(cpu_ir[rc], 0);
582
    tcg_gen_br(l2);
583
    gen_set_label(l1);
584
    tcg_gen_movi_i64(cpu_ir[rc], 1);
585
    gen_set_label(l2);
586
}
587

    
588
static always_inline int translate_one (DisasContext *ctx, uint32_t insn)
589
{
590
    uint32_t palcode;
591
    int32_t disp21, disp16, disp12;
592
    uint16_t fn11, fn16;
593
    uint8_t opc, ra, rb, rc, sbz, fpfn, fn7, fn2, islit;
594
    uint8_t lit;
595
    int ret;
596

    
597
    /* Decode all instruction fields */
598
    opc = insn >> 26;
599
    ra = (insn >> 21) & 0x1F;
600
    rb = (insn >> 16) & 0x1F;
601
    rc = insn & 0x1F;
602
    sbz = (insn >> 13) & 0x07;
603
    islit = (insn >> 12) & 1;
604
    if (rb == 31 && !islit) {
605
        islit = 1;
606
        lit = 0;
607
    } else
608
        lit = (insn >> 13) & 0xFF;
609
    palcode = insn & 0x03FFFFFF;
610
    disp21 = ((int32_t)((insn & 0x001FFFFF) << 11)) >> 11;
611
    disp16 = (int16_t)(insn & 0x0000FFFF);
612
    disp12 = (int32_t)((insn & 0x00000FFF) << 20) >> 20;
613
    fn16 = insn & 0x0000FFFF;
614
    fn11 = (insn >> 5) & 0x000007FF;
615
    fpfn = fn11 & 0x3F;
616
    fn7 = (insn >> 5) & 0x0000007F;
617
    fn2 = (insn >> 5) & 0x00000003;
618
    ret = 0;
619
#if defined ALPHA_DEBUG_DISAS
620
    if (logfile != NULL) {
621
        fprintf(logfile, "opc %02x ra %d rb %d rc %d disp16 %04x\n",
622
                opc, ra, rb, rc, disp16);
623
    }
624
#endif
625
    switch (opc) {
626
    case 0x00:
627
        /* CALL_PAL */
628
        if (palcode >= 0x80 && palcode < 0xC0) {
629
            /* Unprivileged PAL call */
630
            gen_excp(ctx, EXCP_CALL_PAL + ((palcode & 0x1F) << 6), 0);
631
#if !defined (CONFIG_USER_ONLY)
632
        } else if (palcode < 0x40) {
633
            /* Privileged PAL code */
634
            if (ctx->mem_idx & 1)
635
                goto invalid_opc;
636
            else
637
                gen_excp(ctx, EXCP_CALL_PALP + ((palcode & 0x1F) << 6), 0);
638
#endif
639
        } else {
640
            /* Invalid PAL call */
641
            goto invalid_opc;
642
        }
643
        ret = 3;
644
        break;
645
    case 0x01:
646
        /* OPC01 */
647
        goto invalid_opc;
648
    case 0x02:
649
        /* OPC02 */
650
        goto invalid_opc;
651
    case 0x03:
652
        /* OPC03 */
653
        goto invalid_opc;
654
    case 0x04:
655
        /* OPC04 */
656
        goto invalid_opc;
657
    case 0x05:
658
        /* OPC05 */
659
        goto invalid_opc;
660
    case 0x06:
661
        /* OPC06 */
662
        goto invalid_opc;
663
    case 0x07:
664
        /* OPC07 */
665
        goto invalid_opc;
666
    case 0x08:
667
        /* LDA */
668
        if (likely(ra != 31)) {
669
            if (rb != 31)
670
                tcg_gen_addi_i64(cpu_ir[ra], cpu_ir[rb], disp16);
671
            else
672
                tcg_gen_movi_i64(cpu_ir[ra], disp16);
673
        }
674
        break;
675
    case 0x09:
676
        /* LDAH */
677
        if (likely(ra != 31)) {
678
            if (rb != 31)
679
                tcg_gen_addi_i64(cpu_ir[ra], cpu_ir[rb], disp16 << 16);
680
            else
681
                tcg_gen_movi_i64(cpu_ir[ra], disp16 << 16);
682
        }
683
        break;
684
    case 0x0A:
685
        /* LDBU */
686
        if (!(ctx->amask & AMASK_BWX))
687
            goto invalid_opc;
688
        gen_load_mem(ctx, &tcg_gen_qemu_ld8u, ra, rb, disp16, 0, 0);
689
        break;
690
    case 0x0B:
691
        /* LDQ_U */
692
        gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 0, 1);
693
        break;
694
    case 0x0C:
695
        /* LDWU */
696
        if (!(ctx->amask & AMASK_BWX))
697
            goto invalid_opc;
698
        gen_load_mem(ctx, &tcg_gen_qemu_ld16u, ra, rb, disp16, 0, 1);
699
        break;
700
    case 0x0D:
701
        /* STW */
702
        gen_store_mem(ctx, &tcg_gen_qemu_st16, ra, rb, disp16, 0, 0);
703
        break;
704
    case 0x0E:
705
        /* STB */
706
        gen_store_mem(ctx, &tcg_gen_qemu_st8, ra, rb, disp16, 0, 0);
707
        break;
708
    case 0x0F:
709
        /* STQ_U */
710
        gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 1);
711
        break;
712
    case 0x10:
713
        switch (fn7) {
714
        case 0x00:
715
            /* ADDL */
716
            if (likely(rc != 31)) {
717
                if (ra != 31) {
718
                    if (islit) {
719
                        tcg_gen_addi_i64(cpu_ir[rc], cpu_ir[ra], lit);
720
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
721
                    } else {
722
                        tcg_gen_add_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
723
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
724
                    }
725
                } else {
726
                    if (islit)
727
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
728
                    else
729
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rb]);
730
                }
731
            }
732
            break;
733
        case 0x02:
734
            /* S4ADDL */
735
            if (likely(rc != 31)) {
736
                if (ra != 31) {
737
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
738
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 2);
739
                    if (islit)
740
                        tcg_gen_addi_i64(tmp, tmp, lit);
741
                    else
742
                        tcg_gen_add_i64(tmp, tmp, cpu_ir[rb]);
743
                    tcg_gen_ext32s_i64(cpu_ir[rc], tmp);
744
                    tcg_temp_free(tmp);
745
                } else {
746
                    if (islit)
747
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
748
                    else
749
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rb]);
750
                }
751
            }
752
            break;
753
        case 0x09:
754
            /* SUBL */
755
            if (likely(rc != 31)) {
756
                if (ra != 31) {
757
                    if (islit)
758
                        tcg_gen_subi_i64(cpu_ir[rc], cpu_ir[ra], lit);
759
                    else
760
                        tcg_gen_sub_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
761
                    tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
762
                } else {
763
                    if (islit)
764
                        tcg_gen_movi_i64(cpu_ir[rc], -lit);
765
                    else {
766
                        tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]);
767
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
768
                }
769
            }
770
            break;
771
        case 0x0B:
772
            /* S4SUBL */
773
            if (likely(rc != 31)) {
774
                if (ra != 31) {
775
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
776
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 2);
777
                    if (islit)
778
                        tcg_gen_subi_i64(tmp, tmp, lit);
779
                    else
780
                        tcg_gen_sub_i64(tmp, tmp, cpu_ir[rb]);
781
                    tcg_gen_ext32s_i64(cpu_ir[rc], tmp);
782
                    tcg_temp_free(tmp);
783
                } else {
784
                    if (islit)
785
                        tcg_gen_movi_i64(cpu_ir[rc], -lit);
786
                    else {
787
                        tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]);
788
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
789
                    }
790
                }
791
            }
792
            break;
793
        case 0x0F:
794
            /* CMPBGE */
795
            gen_arith3_helper(helper_cmpbge, ra, rb, rc, islit, lit);
796
            break;
797
        case 0x12:
798
            /* S8ADDL */
799
            if (likely(rc != 31)) {
800
                if (ra != 31) {
801
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
802
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 3);
803
                    if (islit)
804
                        tcg_gen_addi_i64(tmp, tmp, lit);
805
                    else
806
                        tcg_gen_add_i64(tmp, tmp, cpu_ir[rb]);
807
                    tcg_gen_ext32s_i64(cpu_ir[rc], tmp);
808
                    tcg_temp_free(tmp);
809
                } else {
810
                    if (islit)
811
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
812
                    else
813
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rb]);
814
                }
815
            }
816
            break;
817
        case 0x1B:
818
            /* S8SUBL */
819
            if (likely(rc != 31)) {
820
                if (ra != 31) {
821
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
822
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 3);
823
                    if (islit)
824
                        tcg_gen_subi_i64(tmp, tmp, lit);
825
                    else
826
                       tcg_gen_sub_i64(tmp, tmp, cpu_ir[rb]);
827
                    tcg_gen_ext32s_i64(cpu_ir[rc], tmp);
828
                    tcg_temp_free(tmp);
829
                } else {
830
                    if (islit)
831
                        tcg_gen_movi_i64(cpu_ir[rc], -lit);
832
                    else
833
                        tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]);
834
                        tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
835
                    }
836
                }
837
            }
838
            break;
839
        case 0x1D:
840
            /* CMPULT */
841
            gen_cmp(TCG_COND_LTU, ra, rb, rc, islit, lit);
842
            break;
843
        case 0x20:
844
            /* ADDQ */
845
            if (likely(rc != 31)) {
846
                if (ra != 31) {
847
                    if (islit)
848
                        tcg_gen_addi_i64(cpu_ir[rc], cpu_ir[ra], lit);
849
                    else
850
                        tcg_gen_add_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
851
                } else {
852
                    if (islit)
853
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
854
                    else
855
                        tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
856
                }
857
            }
858
            break;
859
        case 0x22:
860
            /* S4ADDQ */
861
            if (likely(rc != 31)) {
862
                if (ra != 31) {
863
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
864
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 2);
865
                    if (islit)
866
                        tcg_gen_addi_i64(cpu_ir[rc], tmp, lit);
867
                    else
868
                        tcg_gen_add_i64(cpu_ir[rc], tmp, cpu_ir[rb]);
869
                    tcg_temp_free(tmp);
870
                } else {
871
                    if (islit)
872
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
873
                    else
874
                        tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
875
                }
876
            }
877
            break;
878
        case 0x29:
879
            /* SUBQ */
880
            if (likely(rc != 31)) {
881
                if (ra != 31) {
882
                    if (islit)
883
                        tcg_gen_subi_i64(cpu_ir[rc], cpu_ir[ra], lit);
884
                    else
885
                        tcg_gen_sub_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
886
                } else {
887
                    if (islit)
888
                        tcg_gen_movi_i64(cpu_ir[rc], -lit);
889
                    else
890
                        tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]);
891
                }
892
            }
893
            break;
894
        case 0x2B:
895
            /* S4SUBQ */
896
            if (likely(rc != 31)) {
897
                if (ra != 31) {
898
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
899
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 2);
900
                    if (islit)
901
                        tcg_gen_subi_i64(cpu_ir[rc], tmp, lit);
902
                    else
903
                        tcg_gen_sub_i64(cpu_ir[rc], tmp, cpu_ir[rb]);
904
                    tcg_temp_free(tmp);
905
                } else {
906
                    if (islit)
907
                        tcg_gen_movi_i64(cpu_ir[rc], -lit);
908
                    else
909
                        tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]);
910
                }
911
            }
912
            break;
913
        case 0x2D:
914
            /* CMPEQ */
915
            gen_cmp(TCG_COND_EQ, ra, rb, rc, islit, lit);
916
            break;
917
        case 0x32:
918
            /* S8ADDQ */
919
            if (likely(rc != 31)) {
920
                if (ra != 31) {
921
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
922
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 3);
923
                    if (islit)
924
                        tcg_gen_addi_i64(cpu_ir[rc], tmp, lit);
925
                    else
926
                        tcg_gen_add_i64(cpu_ir[rc], tmp, cpu_ir[rb]);
927
                    tcg_temp_free(tmp);
928
                } else {
929
                    if (islit)
930
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
931
                    else
932
                        tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
933
                }
934
            }
935
            break;
936
        case 0x3B:
937
            /* S8SUBQ */
938
            if (likely(rc != 31)) {
939
                if (ra != 31) {
940
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
941
                    tcg_gen_shli_i64(tmp, cpu_ir[ra], 3);
942
                    if (islit)
943
                        tcg_gen_subi_i64(cpu_ir[rc], tmp, lit);
944
                    else
945
                        tcg_gen_sub_i64(cpu_ir[rc], tmp, cpu_ir[rb]);
946
                    tcg_temp_free(tmp);
947
                } else {
948
                    if (islit)
949
                        tcg_gen_movi_i64(cpu_ir[rc], -lit);
950
                    else
951
                        tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]);
952
                }
953
            }
954
            break;
955
        case 0x3D:
956
            /* CMPULE */
957
            gen_cmp(TCG_COND_LEU, ra, rb, rc, islit, lit);
958
            break;
959
        case 0x40:
960
            /* ADDL/V */
961
            gen_arith3_helper(helper_addlv, ra, rb, rc, islit, lit);
962
            break;
963
        case 0x49:
964
            /* SUBL/V */
965
            gen_arith3_helper(helper_sublv, ra, rb, rc, islit, lit);
966
            break;
967
        case 0x4D:
968
            /* CMPLT */
969
            gen_cmp(TCG_COND_LT, ra, rb, rc, islit, lit);
970
            break;
971
        case 0x60:
972
            /* ADDQ/V */
973
            gen_arith3_helper(helper_addqv, ra, rb, rc, islit, lit);
974
            break;
975
        case 0x69:
976
            /* SUBQ/V */
977
            gen_arith3_helper(helper_subqv, ra, rb, rc, islit, lit);
978
            break;
979
        case 0x6D:
980
            /* CMPLE */
981
            gen_cmp(TCG_COND_LE, ra, rb, rc, islit, lit);
982
            break;
983
        default:
984
            goto invalid_opc;
985
        }
986
        break;
987
    case 0x11:
988
        switch (fn7) {
989
        case 0x00:
990
            /* AND */
991
            if (likely(rc != 31)) {
992
                if (ra == 31)
993
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
994
                else if (islit)
995
                    tcg_gen_andi_i64(cpu_ir[rc], cpu_ir[ra], lit);
996
                else
997
                    tcg_gen_and_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
998
            }
999
            break;
1000
        case 0x08:
1001
            /* BIC */
1002
            if (likely(rc != 31)) {
1003
                if (ra != 31) {
1004
                    if (islit)
1005
                        tcg_gen_andi_i64(cpu_ir[rc], cpu_ir[ra], ~lit);
1006
                    else {
1007
                        TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
1008
                        tcg_gen_not_i64(tmp, cpu_ir[rb]);
1009
                        tcg_gen_and_i64(cpu_ir[rc], cpu_ir[ra], tmp);
1010
                        tcg_temp_free(tmp);
1011
                    }
1012
                } else
1013
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1014
            }
1015
            break;
1016
        case 0x14:
1017
            /* CMOVLBS */
1018
            gen_cmov(ctx, TCG_COND_EQ, ra, rb, rc, islit, lit, 1);
1019
            break;
1020
        case 0x16:
1021
            /* CMOVLBC */
1022
            gen_cmov(ctx, TCG_COND_NE, ra, rb, rc, islit, lit, 1);
1023
            break;
1024
        case 0x20:
1025
            /* BIS */
1026
            if (likely(rc != 31)) {
1027
                if (ra != 31) {
1028
                    if (islit)
1029
                        tcg_gen_ori_i64(cpu_ir[rc], cpu_ir[ra], lit);
1030
                    else
1031
                        tcg_gen_or_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
1032
                } else {
1033
                    if (islit)
1034
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
1035
                    else
1036
                        tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
1037
                }
1038
            }
1039
            break;
1040
        case 0x24:
1041
            /* CMOVEQ */
1042
            gen_cmov(ctx, TCG_COND_NE, ra, rb, rc, islit, lit, 0);
1043
            break;
1044
        case 0x26:
1045
            /* CMOVNE */
1046
            gen_cmov(ctx, TCG_COND_EQ, ra, rb, rc, islit, lit, 0);
1047
            break;
1048
        case 0x28:
1049
            /* ORNOT */
1050
            if (likely(rc != 31)) {
1051
                if (ra != 31) {
1052
                    if (islit)
1053
                        tcg_gen_ori_i64(cpu_ir[rc], cpu_ir[ra], ~lit);
1054
                    else {
1055
                        TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
1056
                        tcg_gen_not_i64(tmp, cpu_ir[rb]);
1057
                        tcg_gen_or_i64(cpu_ir[rc], cpu_ir[ra], tmp);
1058
                        tcg_temp_free(tmp);
1059
                    }
1060
                } else {
1061
                    if (islit)
1062
                        tcg_gen_movi_i64(cpu_ir[rc], ~lit);
1063
                    else
1064
                        tcg_gen_not_i64(cpu_ir[rc], cpu_ir[rb]);
1065
                }
1066
            }
1067
            break;
1068
        case 0x40:
1069
            /* XOR */
1070
            if (likely(rc != 31)) {
1071
                if (ra != 31) {
1072
                    if (islit)
1073
                        tcg_gen_xori_i64(cpu_ir[rc], cpu_ir[ra], lit);
1074
                    else
1075
                        tcg_gen_xor_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
1076
                } else {
1077
                    if (islit)
1078
                        tcg_gen_movi_i64(cpu_ir[rc], lit);
1079
                    else
1080
                        tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
1081
                }
1082
            }
1083
            break;
1084
        case 0x44:
1085
            /* CMOVLT */
1086
            gen_cmov(ctx, TCG_COND_GE, ra, rb, rc, islit, lit, 0);
1087
            break;
1088
        case 0x46:
1089
            /* CMOVGE */
1090
            gen_cmov(ctx, TCG_COND_LT, ra, rb, rc, islit, lit, 0);
1091
            break;
1092
        case 0x48:
1093
            /* EQV */
1094
            if (likely(rc != 31)) {
1095
                if (ra != 31) {
1096
                    if (islit)
1097
                        tcg_gen_xori_i64(cpu_ir[rc], cpu_ir[ra], ~lit);
1098
                    else {
1099
                        TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
1100
                        tcg_gen_not_i64(tmp, cpu_ir[rb]);
1101
                        tcg_gen_xor_i64(cpu_ir[rc], cpu_ir[ra], tmp);
1102
                        tcg_temp_free(tmp);
1103
                    }
1104
                } else {
1105
                    if (islit)
1106
                        tcg_gen_movi_i64(cpu_ir[rc], ~lit);
1107
                    else
1108
                        tcg_gen_not_i64(cpu_ir[rc], cpu_ir[rb]);
1109
                }
1110
            }
1111
            break;
1112
        case 0x61:
1113
            /* AMASK */
1114
            if (likely(rc != 31)) {
1115
                if (islit)
1116
                    tcg_gen_movi_i64(cpu_ir[rc], helper_amask(lit));
1117
                else
1118
                    tcg_gen_helper_1_1(helper_amask, cpu_ir[rc], cpu_ir[rb]);
1119
            }
1120
            break;
1121
        case 0x64:
1122
            /* CMOVLE */
1123
            gen_cmov(ctx, TCG_COND_GT, ra, rb, rc, islit, lit, 0);
1124
            break;
1125
        case 0x66:
1126
            /* CMOVGT */
1127
            gen_cmov(ctx, TCG_COND_LE, ra, rb, rc, islit, lit, 0);
1128
            break;
1129
        case 0x6C:
1130
            /* IMPLVER */
1131
            if (rc != 31)
1132
                tcg_gen_helper_1_0(helper_load_implver, cpu_ir[rc]);
1133
            break;
1134
        default:
1135
            goto invalid_opc;
1136
        }
1137
        break;
1138
    case 0x12:
1139
        switch (fn7) {
1140
        case 0x02:
1141
            /* MSKBL */
1142
            gen_arith3_helper(helper_mskbl, ra, rb, rc, islit, lit);
1143
            break;
1144
        case 0x06:
1145
            /* EXTBL */
1146
            gen_ext_l(&tcg_gen_ext8u_i64, ra, rb, rc, islit, lit);
1147
            break;
1148
        case 0x0B:
1149
            /* INSBL */
1150
            gen_arith3_helper(helper_insbl, ra, rb, rc, islit, lit);
1151
            break;
1152
        case 0x12:
1153
            /* MSKWL */
1154
            gen_arith3_helper(helper_mskwl, ra, rb, rc, islit, lit);
1155
            break;
1156
        case 0x16:
1157
            /* EXTWL */
1158
            gen_ext_l(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit);
1159
            break;
1160
        case 0x1B:
1161
            /* INSWL */
1162
            gen_arith3_helper(helper_inswl, ra, rb, rc, islit, lit);
1163
            break;
1164
        case 0x22:
1165
            /* MSKLL */
1166
            gen_arith3_helper(helper_mskll, ra, rb, rc, islit, lit);
1167
            break;
1168
        case 0x26:
1169
            /* EXTLL */
1170
            gen_ext_l(&tcg_gen_ext32u_i64, ra, rb, rc, islit, lit);
1171
            break;
1172
        case 0x2B:
1173
            /* INSLL */
1174
            gen_arith3_helper(helper_insll, ra, rb, rc, islit, lit);
1175
            break;
1176
        case 0x30:
1177
            /* ZAP */
1178
            gen_arith3_helper(helper_zap, ra, rb, rc, islit, lit);
1179
            break;
1180
        case 0x31:
1181
            /* ZAPNOT */
1182
            gen_arith3_helper(helper_zapnot, ra, rb, rc, islit, lit);
1183
            break;
1184
        case 0x32:
1185
            /* MSKQL */
1186
            gen_arith3_helper(helper_mskql, ra, rb, rc, islit, lit);
1187
            break;
1188
        case 0x34:
1189
            /* SRL */
1190
            if (likely(rc != 31)) {
1191
                if (ra != 31) {
1192
                    if (islit)
1193
                        tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], lit & 0x3f);
1194
                    else {
1195
                        TCGv shift = tcg_temp_new(TCG_TYPE_I64);
1196
                        tcg_gen_andi_i64(shift, cpu_ir[rb], 0x3f);
1197
                        tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], shift);
1198
                        tcg_temp_free(shift);
1199
                    }
1200
                } else
1201
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1202
            }
1203
            break;
1204
        case 0x36:
1205
            /* EXTQL */
1206
            gen_ext_l(NULL, ra, rb, rc, islit, lit);
1207
            break;
1208
        case 0x39:
1209
            /* SLL */
1210
            if (likely(rc != 31)) {
1211
                if (ra != 31) {
1212
                    if (islit)
1213
                        tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], lit & 0x3f);
1214
                    else {
1215
                        TCGv shift = tcg_temp_new(TCG_TYPE_I64);
1216
                        tcg_gen_andi_i64(shift, cpu_ir[rb], 0x3f);
1217
                        tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], shift);
1218
                        tcg_temp_free(shift);
1219
                    }
1220
                } else
1221
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1222
            }
1223
            break;
1224
        case 0x3B:
1225
            /* INSQL */
1226
            gen_arith3_helper(helper_insql, ra, rb, rc, islit, lit);
1227
            break;
1228
        case 0x3C:
1229
            /* SRA */
1230
            if (likely(rc != 31)) {
1231
                if (ra != 31) {
1232
                    if (islit)
1233
                        tcg_gen_sari_i64(cpu_ir[rc], cpu_ir[ra], lit & 0x3f);
1234
                    else {
1235
                        TCGv shift = tcg_temp_new(TCG_TYPE_I64);
1236
                        tcg_gen_andi_i64(shift, cpu_ir[rb], 0x3f);
1237
                        tcg_gen_sar_i64(cpu_ir[rc], cpu_ir[ra], shift);
1238
                        tcg_temp_free(shift);
1239
                    }
1240
                } else
1241
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1242
            }
1243
            break;
1244
        case 0x52:
1245
            /* MSKWH */
1246
            gen_arith3_helper(helper_mskwh, ra, rb, rc, islit, lit);
1247
            break;
1248
        case 0x57:
1249
            /* INSWH */
1250
            gen_arith3_helper(helper_inswh, ra, rb, rc, islit, lit);
1251
            break;
1252
        case 0x5A:
1253
            /* EXTWH */
1254
            gen_ext_h(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit);
1255
            break;
1256
        case 0x62:
1257
            /* MSKLH */
1258
            gen_arith3_helper(helper_msklh, ra, rb, rc, islit, lit);
1259
            break;
1260
        case 0x67:
1261
            /* INSLH */
1262
            gen_arith3_helper(helper_inslh, ra, rb, rc, islit, lit);
1263
            break;
1264
        case 0x6A:
1265
            /* EXTLH */
1266
            gen_ext_h(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit);
1267
            break;
1268
        case 0x72:
1269
            /* MSKQH */
1270
            gen_arith3_helper(helper_mskqh, ra, rb, rc, islit, lit);
1271
            break;
1272
        case 0x77:
1273
            /* INSQH */
1274
            gen_arith3_helper(helper_insqh, ra, rb, rc, islit, lit);
1275
            break;
1276
        case 0x7A:
1277
            /* EXTQH */
1278
            gen_ext_h(NULL, ra, rb, rc, islit, lit);
1279
            break;
1280
        default:
1281
            goto invalid_opc;
1282
        }
1283
        break;
1284
    case 0x13:
1285
        switch (fn7) {
1286
        case 0x00:
1287
            /* MULL */
1288
            if (likely(rc != 31)) {
1289
                if (ra == 31)
1290
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1291
                else {
1292
                    if (islit)
1293
                        tcg_gen_muli_i64(cpu_ir[rc], cpu_ir[ra], lit);
1294
                    else
1295
                        tcg_gen_mul_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
1296
                    tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]);
1297
                }
1298
            }
1299
            break;
1300
        case 0x20:
1301
            /* MULQ */
1302
            if (likely(rc != 31)) {
1303
                if (ra == 31)
1304
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1305
                else if (islit)
1306
                    tcg_gen_muli_i64(cpu_ir[rc], cpu_ir[ra], lit);
1307
                else
1308
                    tcg_gen_mul_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
1309
            }
1310
            break;
1311
        case 0x30:
1312
            /* UMULH */
1313
            gen_arith3_helper(helper_umulh, ra, rb, rc, islit, lit);
1314
            break;
1315
        case 0x40:
1316
            /* MULL/V */
1317
            gen_arith3_helper(helper_mullv, ra, rb, rc, islit, lit);
1318
            break;
1319
        case 0x60:
1320
            /* MULQ/V */
1321
            gen_arith3_helper(helper_mulqv, ra, rb, rc, islit, lit);
1322
            break;
1323
        default:
1324
            goto invalid_opc;
1325
        }
1326
        break;
1327
    case 0x14:
1328
        switch (fpfn) { /* f11 & 0x3F */
1329
        case 0x04:
1330
            /* ITOFS */
1331
            if (!(ctx->amask & AMASK_FIX))
1332
                goto invalid_opc;
1333
            if (likely(rc != 31)) {
1334
                if (ra != 31) {
1335
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
1336
                    tcg_gen_trunc_i64_i32(tmp, cpu_ir[ra]);
1337
                    tcg_gen_helper_1_1(helper_memory_to_s, cpu_fir[rc], tmp);
1338
                    tcg_temp_free(tmp);
1339
                } else
1340
                    tcg_gen_movi_i64(cpu_fir[rc], 0);
1341
            }
1342
            break;
1343
        case 0x0A:
1344
            /* SQRTF */
1345
            if (!(ctx->amask & AMASK_FIX))
1346
                goto invalid_opc;
1347
            gen_farith2(&helper_sqrtf, rb, rc);
1348
            break;
1349
        case 0x0B:
1350
            /* SQRTS */
1351
            if (!(ctx->amask & AMASK_FIX))
1352
                goto invalid_opc;
1353
            gen_farith2(&helper_sqrts, rb, rc);
1354
            break;
1355
        case 0x14:
1356
            /* ITOFF */
1357
            if (!(ctx->amask & AMASK_FIX))
1358
                goto invalid_opc;
1359
            if (likely(rc != 31)) {
1360
                if (ra != 31) {
1361
                    TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
1362
                    tcg_gen_trunc_i64_i32(tmp, cpu_ir[ra]);
1363
                    tcg_gen_helper_1_1(helper_memory_to_f, cpu_fir[rc], tmp);
1364
                    tcg_temp_free(tmp);
1365
                } else
1366
                    tcg_gen_movi_i64(cpu_fir[rc], 0);
1367
            }
1368
            break;
1369
        case 0x24:
1370
            /* ITOFT */
1371
            if (!(ctx->amask & AMASK_FIX))
1372
                goto invalid_opc;
1373
            if (likely(rc != 31)) {
1374
                if (ra != 31)
1375
                    tcg_gen_mov_i64(cpu_fir[rc], cpu_ir[ra]);
1376
                else
1377
                    tcg_gen_movi_i64(cpu_fir[rc], 0);
1378
            }
1379
            break;
1380
        case 0x2A:
1381
            /* SQRTG */
1382
            if (!(ctx->amask & AMASK_FIX))
1383
                goto invalid_opc;
1384
            gen_farith2(&helper_sqrtg, rb, rc);
1385
            break;
1386
        case 0x02B:
1387
            /* SQRTT */
1388
            if (!(ctx->amask & AMASK_FIX))
1389
                goto invalid_opc;
1390
            gen_farith2(&helper_sqrtt, rb, rc);
1391
            break;
1392
        default:
1393
            goto invalid_opc;
1394
        }
1395
        break;
1396
    case 0x15:
1397
        /* VAX floating point */
1398
        /* XXX: rounding mode and trap are ignored (!) */
1399
        switch (fpfn) { /* f11 & 0x3F */
1400
        case 0x00:
1401
            /* ADDF */
1402
            gen_farith3(&helper_addf, ra, rb, rc);
1403
            break;
1404
        case 0x01:
1405
            /* SUBF */
1406
            gen_farith3(&helper_subf, ra, rb, rc);
1407
            break;
1408
        case 0x02:
1409
            /* MULF */
1410
            gen_farith3(&helper_mulf, ra, rb, rc);
1411
            break;
1412
        case 0x03:
1413
            /* DIVF */
1414
            gen_farith3(&helper_divf, ra, rb, rc);
1415
            break;
1416
        case 0x1E:
1417
            /* CVTDG */
1418
#if 0 // TODO
1419
            gen_farith2(&helper_cvtdg, rb, rc);
1420
#else
1421
            goto invalid_opc;
1422
#endif
1423
            break;
1424
        case 0x20:
1425
            /* ADDG */
1426
            gen_farith3(&helper_addg, ra, rb, rc);
1427
            break;
1428
        case 0x21:
1429
            /* SUBG */
1430
            gen_farith3(&helper_subg, ra, rb, rc);
1431
            break;
1432
        case 0x22:
1433
            /* MULG */
1434
            gen_farith3(&helper_mulg, ra, rb, rc);
1435
            break;
1436
        case 0x23:
1437
            /* DIVG */
1438
            gen_farith3(&helper_divg, ra, rb, rc);
1439
            break;
1440
        case 0x25:
1441
            /* CMPGEQ */
1442
            gen_farith3(&helper_cmpgeq, ra, rb, rc);
1443
            break;
1444
        case 0x26:
1445
            /* CMPGLT */
1446
            gen_farith3(&helper_cmpglt, ra, rb, rc);
1447
            break;
1448
        case 0x27:
1449
            /* CMPGLE */
1450
            gen_farith3(&helper_cmpgle, ra, rb, rc);
1451
            break;
1452
        case 0x2C:
1453
            /* CVTGF */
1454
            gen_farith2(&helper_cvtgf, rb, rc);
1455
            break;
1456
        case 0x2D:
1457
            /* CVTGD */
1458
#if 0 // TODO
1459
            gen_farith2(ctx, &helper_cvtgd, rb, rc);
1460
#else
1461
            goto invalid_opc;
1462
#endif
1463
            break;
1464
        case 0x2F:
1465
            /* CVTGQ */
1466
            gen_farith2(&helper_cvtgq, rb, rc);
1467
            break;
1468
        case 0x3C:
1469
            /* CVTQF */
1470
            gen_farith2(&helper_cvtqf, rb, rc);
1471
            break;
1472
        case 0x3E:
1473
            /* CVTQG */
1474
            gen_farith2(&helper_cvtqg, rb, rc);
1475
            break;
1476
        default:
1477
            goto invalid_opc;
1478
        }
1479
        break;
1480
    case 0x16:
1481
        /* IEEE floating-point */
1482
        /* XXX: rounding mode and traps are ignored (!) */
1483
        switch (fpfn) { /* f11 & 0x3F */
1484
        case 0x00:
1485
            /* ADDS */
1486
            gen_farith3(&helper_adds, ra, rb, rc);
1487
            break;
1488
        case 0x01:
1489
            /* SUBS */
1490
            gen_farith3(&helper_subs, ra, rb, rc);
1491
            break;
1492
        case 0x02:
1493
            /* MULS */
1494
            gen_farith3(&helper_muls, ra, rb, rc);
1495
            break;
1496
        case 0x03:
1497
            /* DIVS */
1498
            gen_farith3(&helper_divs, ra, rb, rc);
1499
            break;
1500
        case 0x20:
1501
            /* ADDT */
1502
            gen_farith3(&helper_addt, ra, rb, rc);
1503
            break;
1504
        case 0x21:
1505
            /* SUBT */
1506
            gen_farith3(&helper_subt, ra, rb, rc);
1507
            break;
1508
        case 0x22:
1509
            /* MULT */
1510
            gen_farith3(&helper_mult, ra, rb, rc);
1511
            break;
1512
        case 0x23:
1513
            /* DIVT */
1514
            gen_farith3(&helper_divt, ra, rb, rc);
1515
            break;
1516
        case 0x24:
1517
            /* CMPTUN */
1518
            gen_farith3(&helper_cmptun, ra, rb, rc);
1519
            break;
1520
        case 0x25:
1521
            /* CMPTEQ */
1522
            gen_farith3(&helper_cmpteq, ra, rb, rc);
1523
            break;
1524
        case 0x26:
1525
            /* CMPTLT */
1526
            gen_farith3(&helper_cmptlt, ra, rb, rc);
1527
            break;
1528
        case 0x27:
1529
            /* CMPTLE */
1530
            gen_farith3(&helper_cmptle, ra, rb, rc);
1531
            break;
1532
        case 0x2C:
1533
            /* XXX: incorrect */
1534
            if (fn11 == 0x2AC) {
1535
                /* CVTST */
1536
                gen_farith2(&helper_cvtst, rb, rc);
1537
            } else {
1538
                /* CVTTS */
1539
                gen_farith2(&helper_cvtts, rb, rc);
1540
            }
1541
            break;
1542
        case 0x2F:
1543
            /* CVTTQ */
1544
            gen_farith2(&helper_cvttq, rb, rc);
1545
            break;
1546
        case 0x3C:
1547
            /* CVTQS */
1548
            gen_farith2(&helper_cvtqs, rb, rc);
1549
            break;
1550
        case 0x3E:
1551
            /* CVTQT */
1552
            gen_farith2(&helper_cvtqt, rb, rc);
1553
            break;
1554
        default:
1555
            goto invalid_opc;
1556
        }
1557
        break;
1558
    case 0x17:
1559
        switch (fn11) {
1560
        case 0x010:
1561
            /* CVTLQ */
1562
            gen_farith2(&helper_cvtlq, rb, rc);
1563
            break;
1564
        case 0x020:
1565
            if (likely(rc != 31)) {
1566
                if (ra == rb)
1567
                    /* FMOV */
1568
                    tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]);
1569
                else
1570
                    /* CPYS */
1571
                    gen_farith3(&helper_cpys, ra, rb, rc);
1572
            }
1573
            break;
1574
        case 0x021:
1575
            /* CPYSN */
1576
            gen_farith3(&helper_cpysn, ra, rb, rc);
1577
            break;
1578
        case 0x022:
1579
            /* CPYSE */
1580
            gen_farith3(&helper_cpyse, ra, rb, rc);
1581
            break;
1582
        case 0x024:
1583
            /* MT_FPCR */
1584
            if (likely(ra != 31))
1585
                tcg_gen_helper_0_1(helper_store_fpcr, cpu_fir[ra]);
1586
            else {
1587
                TCGv tmp = tcg_const_i64(0);
1588
                tcg_gen_helper_0_1(helper_store_fpcr, tmp);
1589
                tcg_temp_free(tmp);
1590
            }
1591
            break;
1592
        case 0x025:
1593
            /* MF_FPCR */
1594
            if (likely(ra != 31))
1595
                tcg_gen_helper_1_0(helper_load_fpcr, cpu_fir[ra]);
1596
            break;
1597
        case 0x02A:
1598
            /* FCMOVEQ */
1599
            gen_fcmov(&helper_cmpfeq, ra, rb, rc);
1600
            break;
1601
        case 0x02B:
1602
            /* FCMOVNE */
1603
            gen_fcmov(&helper_cmpfne, ra, rb, rc);
1604
            break;
1605
        case 0x02C:
1606
            /* FCMOVLT */
1607
            gen_fcmov(&helper_cmpflt, ra, rb, rc);
1608
            break;
1609
        case 0x02D:
1610
            /* FCMOVGE */
1611
            gen_fcmov(&helper_cmpfge, ra, rb, rc);
1612
            break;
1613
        case 0x02E:
1614
            /* FCMOVLE */
1615
            gen_fcmov(&helper_cmpfle, ra, rb, rc);
1616
            break;
1617
        case 0x02F:
1618
            /* FCMOVGT */
1619
            gen_fcmov(&helper_cmpfgt, ra, rb, rc);
1620
            break;
1621
        case 0x030:
1622
            /* CVTQL */
1623
            gen_farith2(&helper_cvtql, rb, rc);
1624
            break;
1625
        case 0x130:
1626
            /* CVTQL/V */
1627
            gen_farith2(&helper_cvtqlv, rb, rc);
1628
            break;
1629
        case 0x530:
1630
            /* CVTQL/SV */
1631
            gen_farith2(&helper_cvtqlsv, rb, rc);
1632
            break;
1633
        default:
1634
            goto invalid_opc;
1635
        }
1636
        break;
1637
    case 0x18:
1638
        switch ((uint16_t)disp16) {
1639
        case 0x0000:
1640
            /* TRAPB */
1641
            /* No-op. Just exit from the current tb */
1642
            ret = 2;
1643
            break;
1644
        case 0x0400:
1645
            /* EXCB */
1646
            /* No-op. Just exit from the current tb */
1647
            ret = 2;
1648
            break;
1649
        case 0x4000:
1650
            /* MB */
1651
            /* No-op */
1652
            break;
1653
        case 0x4400:
1654
            /* WMB */
1655
            /* No-op */
1656
            break;
1657
        case 0x8000:
1658
            /* FETCH */
1659
            /* No-op */
1660
            break;
1661
        case 0xA000:
1662
            /* FETCH_M */
1663
            /* No-op */
1664
            break;
1665
        case 0xC000:
1666
            /* RPCC */
1667
            if (ra != 31)
1668
                tcg_gen_helper_1_0(helper_load_pcc, cpu_ir[ra]);
1669
            break;
1670
        case 0xE000:
1671
            /* RC */
1672
            if (ra != 31)
1673
                tcg_gen_helper_1_0(helper_rc, cpu_ir[ra]);
1674
            break;
1675
        case 0xE800:
1676
            /* ECB */
1677
            /* XXX: TODO: evict tb cache at address rb */
1678
#if 0
1679
            ret = 2;
1680
#else
1681
            goto invalid_opc;
1682
#endif
1683
            break;
1684
        case 0xF000:
1685
            /* RS */
1686
            if (ra != 31)
1687
                tcg_gen_helper_1_0(helper_rs, cpu_ir[ra]);
1688
            break;
1689
        case 0xF800:
1690
            /* WH64 */
1691
            /* No-op */
1692
            break;
1693
        default:
1694
            goto invalid_opc;
1695
        }
1696
        break;
1697
    case 0x19:
1698
        /* HW_MFPR (PALcode) */
1699
#if defined (CONFIG_USER_ONLY)
1700
        goto invalid_opc;
1701
#else
1702
        if (!ctx->pal_mode)
1703
            goto invalid_opc;
1704
        gen_op_mfpr(insn & 0xFF);
1705
        if (ra != 31)
1706
            tcg_gen_mov_i64(cpu_ir[ra], cpu_T[0]);
1707
        break;
1708
#endif
1709
    case 0x1A:
1710
        if (ra != 31)
1711
            tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
1712
        if (rb != 31)
1713
            tcg_gen_andi_i64(cpu_pc, cpu_ir[rb], ~3);
1714
        else
1715
            tcg_gen_movi_i64(cpu_pc, 0);
1716
        /* Those four jumps only differ by the branch prediction hint */
1717
        switch (fn2) {
1718
        case 0x0:
1719
            /* JMP */
1720
            break;
1721
        case 0x1:
1722
            /* JSR */
1723
            break;
1724
        case 0x2:
1725
            /* RET */
1726
            break;
1727
        case 0x3:
1728
            /* JSR_COROUTINE */
1729
            break;
1730
        }
1731
        ret = 1;
1732
        break;
1733
    case 0x1B:
1734
        /* HW_LD (PALcode) */
1735
#if defined (CONFIG_USER_ONLY)
1736
        goto invalid_opc;
1737
#else
1738
        if (!ctx->pal_mode)
1739
            goto invalid_opc;
1740
        if (rb != 31)
1741
            tcg_gen_mov_i64(cpu_T[0], cpu_ir[rb]);
1742
        else
1743
            tcg_gen_movi_i64(cpu_T[0], 0);
1744
        tcg_gen_movi_i64(cpu_T[1], disp12);
1745
        tcg_gen_add_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
1746
        switch ((insn >> 12) & 0xF) {
1747
        case 0x0:
1748
            /* Longword physical access */
1749
            gen_op_ldl_raw();
1750
            break;
1751
        case 0x1:
1752
            /* Quadword physical access */
1753
            gen_op_ldq_raw();
1754
            break;
1755
        case 0x2:
1756
            /* Longword physical access with lock */
1757
            gen_op_ldl_l_raw();
1758
            break;
1759
        case 0x3:
1760
            /* Quadword physical access with lock */
1761
            gen_op_ldq_l_raw();
1762
            break;
1763
        case 0x4:
1764
            /* Longword virtual PTE fetch */
1765
            gen_op_ldl_kernel();
1766
            break;
1767
        case 0x5:
1768
            /* Quadword virtual PTE fetch */
1769
            gen_op_ldq_kernel();
1770
            break;
1771
        case 0x6:
1772
            /* Invalid */
1773
            goto invalid_opc;
1774
        case 0x7:
1775
            /* Invalid */
1776
            goto invalid_opc;
1777
        case 0x8:
1778
            /* Longword virtual access */
1779
            gen_op_ld_phys_to_virt();
1780
            gen_op_ldl_raw();
1781
            break;
1782
        case 0x9:
1783
            /* Quadword virtual access */
1784
            gen_op_ld_phys_to_virt();
1785
            gen_op_ldq_raw();
1786
            break;
1787
        case 0xA:
1788
            /* Longword virtual access with protection check */
1789
            gen_ldl(ctx);
1790
            break;
1791
        case 0xB:
1792
            /* Quadword virtual access with protection check */
1793
            gen_ldq(ctx);
1794
            break;
1795
        case 0xC:
1796
            /* Longword virtual access with altenate access mode */
1797
            gen_op_set_alt_mode();
1798
            gen_op_ld_phys_to_virt();
1799
            gen_op_ldl_raw();
1800
            gen_op_restore_mode();
1801
            break;
1802
        case 0xD:
1803
            /* Quadword virtual access with altenate access mode */
1804
            gen_op_set_alt_mode();
1805
            gen_op_ld_phys_to_virt();
1806
            gen_op_ldq_raw();
1807
            gen_op_restore_mode();
1808
            break;
1809
        case 0xE:
1810
            /* Longword virtual access with alternate access mode and
1811
             * protection checks
1812
             */
1813
            gen_op_set_alt_mode();
1814
            gen_op_ldl_data();
1815
            gen_op_restore_mode();
1816
            break;
1817
        case 0xF:
1818
            /* Quadword virtual access with alternate access mode and
1819
             * protection checks
1820
             */
1821
            gen_op_set_alt_mode();
1822
            gen_op_ldq_data();
1823
            gen_op_restore_mode();
1824
            break;
1825
        }
1826
        if (ra != 31)
1827
            tcg_gen_mov_i64(cpu_ir[ra], cpu_T[1]);
1828
        break;
1829
#endif
1830
    case 0x1C:
1831
        switch (fn7) {
1832
        case 0x00:
1833
            /* SEXTB */
1834
            if (!(ctx->amask & AMASK_BWX))
1835
                goto invalid_opc;
1836
            if (likely(rc != 31)) {
1837
                if (islit)
1838
                    tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int8_t)lit));
1839
                else
1840
                    tcg_gen_ext8s_i64(cpu_ir[rc], cpu_ir[rb]);
1841
            }
1842
            break;
1843
        case 0x01:
1844
            /* SEXTW */
1845
            if (!(ctx->amask & AMASK_BWX))
1846
                goto invalid_opc;
1847
            if (likely(rc != 31)) {
1848
                if (islit)
1849
                    tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int16_t)lit));
1850
                else
1851
                    tcg_gen_ext16s_i64(cpu_ir[rc], cpu_ir[rb]);
1852
            }
1853
            break;
1854
        case 0x30:
1855
            /* CTPOP */
1856
            if (!(ctx->amask & AMASK_CIX))
1857
                goto invalid_opc;
1858
            if (likely(rc != 31)) {
1859
                if (islit)
1860
                    tcg_gen_movi_i64(cpu_ir[rc], ctpop64(lit));
1861
                else
1862
                    tcg_gen_helper_1_1(helper_ctpop, cpu_ir[rc], cpu_ir[rb]);
1863
            }
1864
            break;
1865
        case 0x31:
1866
            /* PERR */
1867
            if (!(ctx->amask & AMASK_MVI))
1868
                goto invalid_opc;
1869
            /* XXX: TODO */
1870
            goto invalid_opc;
1871
            break;
1872
        case 0x32:
1873
            /* CTLZ */
1874
            if (!(ctx->amask & AMASK_CIX))
1875
                goto invalid_opc;
1876
            if (likely(rc != 31)) {
1877
                if (islit)
1878
                    tcg_gen_movi_i64(cpu_ir[rc], clz64(lit));
1879
                else
1880
                    tcg_gen_helper_1_1(helper_ctlz, cpu_ir[rc], cpu_ir[rb]);
1881
            }
1882
            break;
1883
        case 0x33:
1884
            /* CTTZ */
1885
            if (!(ctx->amask & AMASK_CIX))
1886
                goto invalid_opc;
1887
            if (likely(rc != 31)) {
1888
                if (islit)
1889
                    tcg_gen_movi_i64(cpu_ir[rc], ctz64(lit));
1890
                else
1891
                    tcg_gen_helper_1_1(helper_cttz, cpu_ir[rc], cpu_ir[rb]);
1892
            }
1893
            break;
1894
        case 0x34:
1895
            /* UNPKBW */
1896
            if (!(ctx->amask & AMASK_MVI))
1897
                goto invalid_opc;
1898
            /* XXX: TODO */
1899
            goto invalid_opc;
1900
            break;
1901
        case 0x35:
1902
            /* UNPKWL */
1903
            if (!(ctx->amask & AMASK_MVI))
1904
                goto invalid_opc;
1905
            /* XXX: TODO */
1906
            goto invalid_opc;
1907
            break;
1908
        case 0x36:
1909
            /* PKWB */
1910
            if (!(ctx->amask & AMASK_MVI))
1911
                goto invalid_opc;
1912
            /* XXX: TODO */
1913
            goto invalid_opc;
1914
            break;
1915
        case 0x37:
1916
            /* PKLB */
1917
            if (!(ctx->amask & AMASK_MVI))
1918
                goto invalid_opc;
1919
            /* XXX: TODO */
1920
            goto invalid_opc;
1921
            break;
1922
        case 0x38:
1923
            /* MINSB8 */
1924
            if (!(ctx->amask & AMASK_MVI))
1925
                goto invalid_opc;
1926
            /* XXX: TODO */
1927
            goto invalid_opc;
1928
            break;
1929
        case 0x39:
1930
            /* MINSW4 */
1931
            if (!(ctx->amask & AMASK_MVI))
1932
                goto invalid_opc;
1933
            /* XXX: TODO */
1934
            goto invalid_opc;
1935
            break;
1936
        case 0x3A:
1937
            /* MINUB8 */
1938
            if (!(ctx->amask & AMASK_MVI))
1939
                goto invalid_opc;
1940
            /* XXX: TODO */
1941
            goto invalid_opc;
1942
            break;
1943
        case 0x3B:
1944
            /* MINUW4 */
1945
            if (!(ctx->amask & AMASK_MVI))
1946
                goto invalid_opc;
1947
            /* XXX: TODO */
1948
            goto invalid_opc;
1949
            break;
1950
        case 0x3C:
1951
            /* MAXUB8 */
1952
            if (!(ctx->amask & AMASK_MVI))
1953
                goto invalid_opc;
1954
            /* XXX: TODO */
1955
            goto invalid_opc;
1956
            break;
1957
        case 0x3D:
1958
            /* MAXUW4 */
1959
            if (!(ctx->amask & AMASK_MVI))
1960
                goto invalid_opc;
1961
            /* XXX: TODO */
1962
            goto invalid_opc;
1963
            break;
1964
        case 0x3E:
1965
            /* MAXSB8 */
1966
            if (!(ctx->amask & AMASK_MVI))
1967
                goto invalid_opc;
1968
            /* XXX: TODO */
1969
            goto invalid_opc;
1970
            break;
1971
        case 0x3F:
1972
            /* MAXSW4 */
1973
            if (!(ctx->amask & AMASK_MVI))
1974
                goto invalid_opc;
1975
            /* XXX: TODO */
1976
            goto invalid_opc;
1977
            break;
1978
        case 0x70:
1979
            /* FTOIT */
1980
            if (!(ctx->amask & AMASK_FIX))
1981
                goto invalid_opc;
1982
            if (likely(rc != 31)) {
1983
                if (ra != 31)
1984
                    tcg_gen_mov_i64(cpu_ir[rc], cpu_fir[ra]);
1985
                else
1986
                    tcg_gen_movi_i64(cpu_ir[rc], 0);
1987
            }
1988
            break;
1989
        case 0x78:
1990
            /* FTOIS */
1991
            if (!(ctx->amask & AMASK_FIX))
1992
                goto invalid_opc;
1993
            if (rc != 31) {
1994
                TCGv tmp1 = tcg_temp_new(TCG_TYPE_I32);
1995
                if (ra != 31)
1996
                    tcg_gen_helper_1_1(helper_s_to_memory, tmp1, cpu_fir[ra]);
1997
                else {
1998
                    TCGv tmp2 = tcg_const_i64(0);
1999
                    tcg_gen_helper_1_1(helper_s_to_memory, tmp1, tmp2);
2000
                    tcg_temp_free(tmp2);
2001
                }
2002
                tcg_gen_ext_i32_i64(cpu_ir[rc], tmp1);
2003
                tcg_temp_free(tmp1);
2004
            }
2005
            break;
2006
        default:
2007
            goto invalid_opc;
2008
        }
2009
        break;
2010
    case 0x1D:
2011
        /* HW_MTPR (PALcode) */
2012
#if defined (CONFIG_USER_ONLY)
2013
        goto invalid_opc;
2014
#else
2015
        if (!ctx->pal_mode)
2016
            goto invalid_opc;
2017
        if (ra != 31)
2018
            tcg_gen_mov_i64(cpu_T[0], cpu_ir[ra]);
2019
        else
2020
            tcg_gen_movi_i64(cpu_T[0], 0);
2021
        gen_op_mtpr(insn & 0xFF);
2022
        ret = 2;
2023
        break;
2024
#endif
2025
    case 0x1E:
2026
        /* HW_REI (PALcode) */
2027
#if defined (CONFIG_USER_ONLY)
2028
        goto invalid_opc;
2029
#else
2030
        if (!ctx->pal_mode)
2031
            goto invalid_opc;
2032
        if (rb == 31) {
2033
            /* "Old" alpha */
2034
            gen_op_hw_rei();
2035
        } else {
2036
            if (ra != 31)
2037
                tcg_gen_mov_i64(cpu_T[0], cpu_ir[rb]);
2038
            else
2039
                tcg_gen_movi_i64(cpu_T[0], 0);
2040
            tcg_gen_movi_i64(cpu_T[1], (((int64_t)insn << 51) >> 51));
2041
            tcg_gen_add_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
2042
            gen_op_hw_ret();
2043
        }
2044
        ret = 2;
2045
        break;
2046
#endif
2047
    case 0x1F:
2048
        /* HW_ST (PALcode) */
2049
#if defined (CONFIG_USER_ONLY)
2050
        goto invalid_opc;
2051
#else
2052
        if (!ctx->pal_mode)
2053
            goto invalid_opc;
2054
        if (ra != 31)
2055
            tcg_gen_addi_i64(cpu_T[0], cpu_ir[rb], disp12);
2056
        else
2057
            tcg_gen_movi_i64(cpu_T[0], disp12);
2058
        if (ra != 31)
2059
            tcg_gen_mov_i64(cpu_T[1], cpu_ir[ra]);
2060
        else
2061
            tcg_gen_movi_i64(cpu_T[1], 0);
2062
        switch ((insn >> 12) & 0xF) {
2063
        case 0x0:
2064
            /* Longword physical access */
2065
            gen_op_stl_raw();
2066
            break;
2067
        case 0x1:
2068
            /* Quadword physical access */
2069
            gen_op_stq_raw();
2070
            break;
2071
        case 0x2:
2072
            /* Longword physical access with lock */
2073
            gen_op_stl_c_raw();
2074
            break;
2075
        case 0x3:
2076
            /* Quadword physical access with lock */
2077
            gen_op_stq_c_raw();
2078
            break;
2079
        case 0x4:
2080
            /* Longword virtual access */
2081
            gen_op_st_phys_to_virt();
2082
            gen_op_stl_raw();
2083
            break;
2084
        case 0x5:
2085
            /* Quadword virtual access */
2086
            gen_op_st_phys_to_virt();
2087
            gen_op_stq_raw();
2088
            break;
2089
        case 0x6:
2090
            /* Invalid */
2091
            goto invalid_opc;
2092
        case 0x7:
2093
            /* Invalid */
2094
            goto invalid_opc;
2095
        case 0x8:
2096
            /* Invalid */
2097
            goto invalid_opc;
2098
        case 0x9:
2099
            /* Invalid */
2100
            goto invalid_opc;
2101
        case 0xA:
2102
            /* Invalid */
2103
            goto invalid_opc;
2104
        case 0xB:
2105
            /* Invalid */
2106
            goto invalid_opc;
2107
        case 0xC:
2108
            /* Longword virtual access with alternate access mode */
2109
            gen_op_set_alt_mode();
2110
            gen_op_st_phys_to_virt();
2111
            gen_op_ldl_raw();
2112
            gen_op_restore_mode();
2113
            break;
2114
        case 0xD:
2115
            /* Quadword virtual access with alternate access mode */
2116
            gen_op_set_alt_mode();
2117
            gen_op_st_phys_to_virt();
2118
            gen_op_ldq_raw();
2119
            gen_op_restore_mode();
2120
            break;
2121
        case 0xE:
2122
            /* Invalid */
2123
            goto invalid_opc;
2124
        case 0xF:
2125
            /* Invalid */
2126
            goto invalid_opc;
2127
        }
2128
        ret = 2;
2129
        break;
2130
#endif
2131
    case 0x20:
2132
        /* LDF */
2133
        gen_load_mem(ctx, &gen_qemu_ldf, ra, rb, disp16, 1, 0);
2134
        break;
2135
    case 0x21:
2136
        /* LDG */
2137
        gen_load_mem(ctx, &gen_qemu_ldg, ra, rb, disp16, 1, 0);
2138
        break;
2139
    case 0x22:
2140
        /* LDS */
2141
        gen_load_mem(ctx, &gen_qemu_lds, ra, rb, disp16, 1, 0);
2142
        break;
2143
    case 0x23:
2144
        /* LDT */
2145
        gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 1, 0);
2146
        break;
2147
    case 0x24:
2148
        /* STF */
2149
        gen_store_mem(ctx, &gen_qemu_stf, ra, rb, disp16, 1, 0);
2150
        break;
2151
    case 0x25:
2152
        /* STG */
2153
        gen_store_mem(ctx, &gen_qemu_stg, ra, rb, disp16, 1, 0);
2154
        break;
2155
    case 0x26:
2156
        /* STS */
2157
        gen_store_mem(ctx, &gen_qemu_sts, ra, rb, disp16, 1, 0);
2158
        break;
2159
    case 0x27:
2160
        /* STT */
2161
        gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 1, 0);
2162
        break;
2163
    case 0x28:
2164
        /* LDL */
2165
        gen_load_mem(ctx, &tcg_gen_qemu_ld32s, ra, rb, disp16, 0, 0);
2166
        break;
2167
    case 0x29:
2168
        /* LDQ */
2169
        gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 0, 0);
2170
        break;
2171
    case 0x2A:
2172
        /* LDL_L */
2173
        gen_load_mem_dyngen(ctx, &gen_ldl_l, ra, rb, disp16, 0);
2174
        break;
2175
    case 0x2B:
2176
        /* LDQ_L */
2177
        gen_load_mem_dyngen(ctx, &gen_ldq_l, ra, rb, disp16, 0);
2178
        break;
2179
    case 0x2C:
2180
        /* STL */
2181
        gen_store_mem(ctx, &tcg_gen_qemu_st32, ra, rb, disp16, 0, 0);
2182
        break;
2183
    case 0x2D:
2184
        /* STQ */
2185
        gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 0);
2186
        break;
2187
    case 0x2E:
2188
        /* STL_C */
2189
        gen_store_mem_dyngen(ctx, &gen_stl_c, ra, rb, disp16, 0);
2190
        break;
2191
    case 0x2F:
2192
        /* STQ_C */
2193
        gen_store_mem_dyngen(ctx, &gen_stq_c, ra, rb, disp16, 0);
2194
        break;
2195
    case 0x30:
2196
        /* BR */
2197
        if (ra != 31)
2198
            tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
2199
        tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp21 << 2));
2200
        ret = 1;
2201
        break;
2202
    case 0x31:
2203
        /* FBEQ */
2204
        gen_fbcond(ctx, &helper_cmpfeq, ra, disp16);
2205
        ret = 1;
2206
        break;
2207
    case 0x32:
2208
        /* FBLT */
2209
        gen_fbcond(ctx, &helper_cmpflt, ra, disp16);
2210
        ret = 1;
2211
        break;
2212
    case 0x33:
2213
        /* FBLE */
2214
        gen_fbcond(ctx, &helper_cmpfle, ra, disp16);
2215
        ret = 1;
2216
        break;
2217
    case 0x34:
2218
        /* BSR */
2219
        if (ra != 31)
2220
            tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
2221
        tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp21 << 2));
2222
        ret = 1;
2223
        break;
2224
    case 0x35:
2225
        /* FBNE */
2226
        gen_fbcond(ctx, &helper_cmpfne, ra, disp16);
2227
        ret = 1;
2228
        break;
2229
    case 0x36:
2230
        /* FBGE */
2231
        gen_fbcond(ctx, &helper_cmpfge, ra, disp16);
2232
        ret = 1;
2233
        break;
2234
    case 0x37:
2235
        /* FBGT */
2236
        gen_fbcond(ctx, &helper_cmpfgt, ra, disp16);
2237
        ret = 1;
2238
        break;
2239
    case 0x38:
2240
        /* BLBC */
2241
        gen_bcond(ctx, TCG_COND_EQ, ra, disp16, 1);
2242
        ret = 1;
2243
        break;
2244
    case 0x39:
2245
        /* BEQ */
2246
        gen_bcond(ctx, TCG_COND_EQ, ra, disp16, 0);
2247
        ret = 1;
2248
        break;
2249
    case 0x3A:
2250
        /* BLT */
2251
        gen_bcond(ctx, TCG_COND_LT, ra, disp16, 0);
2252
        ret = 1;
2253
        break;
2254
    case 0x3B:
2255
        /* BLE */
2256
        gen_bcond(ctx, TCG_COND_LE, ra, disp16, 0);
2257
        ret = 1;
2258
        break;
2259
    case 0x3C:
2260
        /* BLBS */
2261
        gen_bcond(ctx, TCG_COND_NE, ra, disp16, 1);
2262
        ret = 1;
2263
        break;
2264
    case 0x3D:
2265
        /* BNE */
2266
        gen_bcond(ctx, TCG_COND_NE, ra, disp16, 0);
2267
        ret = 1;
2268
        break;
2269
    case 0x3E:
2270
        /* BGE */
2271
        gen_bcond(ctx, TCG_COND_GE, ra, disp16, 0);
2272
        ret = 1;
2273
        break;
2274
    case 0x3F:
2275
        /* BGT */
2276
        gen_bcond(ctx, TCG_COND_GT, ra, disp16, 0);
2277
        ret = 1;
2278
        break;
2279
    invalid_opc:
2280
        gen_invalid(ctx);
2281
        ret = 3;
2282
        break;
2283
    }
2284

    
2285
    return ret;
2286
}
2287

    
2288
static always_inline void gen_intermediate_code_internal (CPUState *env,
2289
                                                          TranslationBlock *tb,
2290
                                                          int search_pc)
2291
{
2292
#if defined ALPHA_DEBUG_DISAS
2293
    static int insn_count;
2294
#endif
2295
    DisasContext ctx, *ctxp = &ctx;
2296
    target_ulong pc_start;
2297
    uint32_t insn;
2298
    uint16_t *gen_opc_end;
2299
    int j, lj = -1;
2300
    int ret;
2301
    int num_insns;
2302
    int max_insns;
2303

    
2304
    pc_start = tb->pc;
2305
    gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
2306
    ctx.pc = pc_start;
2307
    ctx.amask = env->amask;
2308
#if defined (CONFIG_USER_ONLY)
2309
    ctx.mem_idx = 0;
2310
#else
2311
    ctx.mem_idx = ((env->ps >> 3) & 3);
2312
    ctx.pal_mode = env->ipr[IPR_EXC_ADDR] & 1;
2313
#endif
2314
    num_insns = 0;
2315
    max_insns = tb->cflags & CF_COUNT_MASK;
2316
    if (max_insns == 0)
2317
        max_insns = CF_COUNT_MASK;
2318

    
2319
    gen_icount_start();
2320
    for (ret = 0; ret == 0;) {
2321
        if (env->nb_breakpoints > 0) {
2322
            for(j = 0; j < env->nb_breakpoints; j++) {
2323
                if (env->breakpoints[j] == ctx.pc) {
2324
                    gen_excp(&ctx, EXCP_DEBUG, 0);
2325
                    break;
2326
                }
2327
            }
2328
        }
2329
        if (search_pc) {
2330
            j = gen_opc_ptr - gen_opc_buf;
2331
            if (lj < j) {
2332
                lj++;
2333
                while (lj < j)
2334
                    gen_opc_instr_start[lj++] = 0;
2335
                gen_opc_pc[lj] = ctx.pc;
2336
                gen_opc_instr_start[lj] = 1;
2337
                gen_opc_icount[lj] = num_insns;
2338
            }
2339
        }
2340
        if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
2341
            gen_io_start();
2342
#if defined ALPHA_DEBUG_DISAS
2343
        insn_count++;
2344
        if (logfile != NULL) {
2345
            fprintf(logfile, "pc " TARGET_FMT_lx " mem_idx %d\n",
2346
                    ctx.pc, ctx.mem_idx);
2347
        }
2348
#endif
2349
        insn = ldl_code(ctx.pc);
2350
#if defined ALPHA_DEBUG_DISAS
2351
        insn_count++;
2352
        if (logfile != NULL) {
2353
            fprintf(logfile, "opcode %08x %d\n", insn, insn_count);
2354
        }
2355
#endif
2356
        num_insns++;
2357
        ctx.pc += 4;
2358
        ret = translate_one(ctxp, insn);
2359
        if (ret != 0)
2360
            break;
2361
        /* if we reach a page boundary or are single stepping, stop
2362
         * generation
2363
         */
2364
        if (((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) ||
2365
            (env->singlestep_enabled) ||
2366
            num_insns >= max_insns) {
2367
            break;
2368
        }
2369
#if defined (DO_SINGLE_STEP)
2370
        break;
2371
#endif
2372
    }
2373
    if (ret != 1 && ret != 3) {
2374
        tcg_gen_movi_i64(cpu_pc, ctx.pc);
2375
    }
2376
#if defined (DO_TB_FLUSH)
2377
    tcg_gen_helper_0_0(helper_tb_flush);
2378
#endif
2379
    if (tb->cflags & CF_LAST_IO)
2380
        gen_io_end();
2381
    /* Generate the return instruction */
2382
    tcg_gen_exit_tb(0);
2383
    gen_icount_end(tb, num_insns);
2384
    *gen_opc_ptr = INDEX_op_end;
2385
    if (search_pc) {
2386
        j = gen_opc_ptr - gen_opc_buf;
2387
        lj++;
2388
        while (lj <= j)
2389
            gen_opc_instr_start[lj++] = 0;
2390
    } else {
2391
        tb->size = ctx.pc - pc_start;
2392
        tb->icount = num_insns;
2393
    }
2394
#if defined ALPHA_DEBUG_DISAS
2395
    if (loglevel & CPU_LOG_TB_CPU) {
2396
        cpu_dump_state(env, logfile, fprintf, 0);
2397
    }
2398
    if (loglevel & CPU_LOG_TB_IN_ASM) {
2399
        fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
2400
        target_disas(logfile, pc_start, ctx.pc - pc_start, 1);
2401
        fprintf(logfile, "\n");
2402
    }
2403
#endif
2404
}
2405

    
2406
void gen_intermediate_code (CPUState *env, struct TranslationBlock *tb)
2407
{
2408
    gen_intermediate_code_internal(env, tb, 0);
2409
}
2410

    
2411
void gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb)
2412
{
2413
    gen_intermediate_code_internal(env, tb, 1);
2414
}
2415

    
2416
CPUAlphaState * cpu_alpha_init (const char *cpu_model)
2417
{
2418
    CPUAlphaState *env;
2419
    uint64_t hwpcb;
2420

    
2421
    env = qemu_mallocz(sizeof(CPUAlphaState));
2422
    if (!env)
2423
        return NULL;
2424
    cpu_exec_init(env);
2425
    alpha_translate_init();
2426
    tlb_flush(env, 1);
2427
    /* XXX: should not be hardcoded */
2428
    env->implver = IMPLVER_2106x;
2429
    env->ps = 0x1F00;
2430
#if defined (CONFIG_USER_ONLY)
2431
    env->ps |= 1 << 3;
2432
#endif
2433
    pal_init(env);
2434
    /* Initialize IPR */
2435
    hwpcb = env->ipr[IPR_PCBB];
2436
    env->ipr[IPR_ASN] = 0;
2437
    env->ipr[IPR_ASTEN] = 0;
2438
    env->ipr[IPR_ASTSR] = 0;
2439
    env->ipr[IPR_DATFX] = 0;
2440
    /* XXX: fix this */
2441
    //    env->ipr[IPR_ESP] = ldq_raw(hwpcb + 8);
2442
    //    env->ipr[IPR_KSP] = ldq_raw(hwpcb + 0);
2443
    //    env->ipr[IPR_SSP] = ldq_raw(hwpcb + 16);
2444
    //    env->ipr[IPR_USP] = ldq_raw(hwpcb + 24);
2445
    env->ipr[IPR_FEN] = 0;
2446
    env->ipr[IPR_IPL] = 31;
2447
    env->ipr[IPR_MCES] = 0;
2448
    env->ipr[IPR_PERFMON] = 0; /* Implementation specific */
2449
    //    env->ipr[IPR_PTBR] = ldq_raw(hwpcb + 32);
2450
    env->ipr[IPR_SISR] = 0;
2451
    env->ipr[IPR_VIRBND] = -1ULL;
2452

    
2453
    return env;
2454
}
2455

    
2456
void gen_pc_load(CPUState *env, TranslationBlock *tb,
2457
                unsigned long searched_pc, int pc_pos, void *puc)
2458
{
2459
    env->pc = gen_opc_pc[pc_pos];
2460
}