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1
/*
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 * Tiny Code Generator for QEMU
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 *
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 * Copyright (c) 2008 Fabrice Bellard
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
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25
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
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    "%r0",
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    "%r1",
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    "%rp",
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    "%r3",
30
    "%r4",
31
    "%r5",
32
    "%r6",
33
    "%r7",
34
    "%r8",
35
    "%r9",
36
    "%r10",
37
    "%r11",
38
    "%r12",
39
    "%r13",
40
    "%r14",
41
    "%r15",
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    "%r16",
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    "%r17",
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    "%r18",
45
    "%r19",
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    "%r20",
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    "%r21",
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    "%r22",
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    "%r23",
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    "%r24",
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    "%r25",
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    "%r26",
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    "%dp",
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    "%ret0",
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    "%ret1",
56
    "%sp",
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    "%r31",
58
};
59

    
60
static const int tcg_target_reg_alloc_order[] = {
61
    TCG_REG_R4,
62
    TCG_REG_R5,
63
    TCG_REG_R6,
64
    TCG_REG_R7,
65
    TCG_REG_R8,
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    TCG_REG_R9,
67
    TCG_REG_R10,
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    TCG_REG_R11,
69
    TCG_REG_R12,
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    TCG_REG_R13,
71

    
72
    TCG_REG_R17,
73
    TCG_REG_R14,
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    TCG_REG_R15,
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    TCG_REG_R16,
76
};
77

    
78
static const int tcg_target_call_iarg_regs[4] = {
79
    TCG_REG_R26,
80
    TCG_REG_R25,
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    TCG_REG_R24,
82
    TCG_REG_R23,
83
};
84

    
85
static const int tcg_target_call_oarg_regs[2] = {
86
    TCG_REG_RET0,
87
    TCG_REG_RET1,
88
};
89

    
90
static void patch_reloc(uint8_t *code_ptr, int type,
91
                        tcg_target_long value, tcg_target_long addend)
92
{
93
    switch (type) {
94
    case R_PARISC_PCREL17F:
95
        hppa_patch17f((uint32_t *)code_ptr, value, addend);
96
        break;
97
    default:
98
        tcg_abort();
99
    }
100
}
101

    
102
/* maximum number of register used for input function arguments */
103
static inline int tcg_target_get_call_iarg_regs_count(int flags)
104
{
105
    return 4;
106
}
107

    
108
/* parse target specific constraints */
109
int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
110
{
111
    const char *ct_str;
112

    
113
    ct_str = *pct_str;
114
    switch (ct_str[0]) {
115
    case 'r':
116
        ct->ct |= TCG_CT_REG;
117
        tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
118
        break;
119
    case 'L': /* qemu_ld/st constraint */
120
        ct->ct |= TCG_CT_REG;
121
        tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
122
        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R26);
123
        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R25);
124
        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R24);
125
        tcg_regset_reset_reg(ct->u.regs, TCG_REG_R23);
126
        break;
127
    default:
128
        return -1;
129
    }
130
    ct_str++;
131
    *pct_str = ct_str;
132
    return 0;
133
}
134

    
135
/* test if a constant matches the constraint */
136
static inline int tcg_target_const_match(tcg_target_long val,
137
                                         const TCGArgConstraint *arg_ct)
138
{
139
    int ct;
140

    
141
    ct = arg_ct->ct;
142

    
143
    /* TODO */
144

    
145
    return 0;
146
}
147

    
148
#define INSN_OP(x)       ((x) << 26)
149
#define INSN_EXT3BR(x)   ((x) << 13)
150
#define INSN_EXT3SH(x)   ((x) << 10)
151
#define INSN_EXT4(x)     ((x) << 6)
152
#define INSN_EXT5(x)     (x)
153
#define INSN_EXT6(x)     ((x) << 6)
154
#define INSN_EXT7(x)     ((x) << 6)
155
#define INSN_EXT8A(x)    ((x) << 6)
156
#define INSN_EXT8B(x)    ((x) << 5)
157
#define INSN_T(x)        (x)
158
#define INSN_R1(x)       ((x) << 16)
159
#define INSN_R2(x)       ((x) << 21)
160
#define INSN_DEP_LEN(x)  (32 - (x))
161
#define INSN_SHDEP_CP(x) ((31 - (x)) << 5)
162
#define INSN_SHDEP_P(x)  ((x) << 5)
163
#define INSN_COND(x)     ((x) << 13)
164

    
165
#define COND_NEVER 0
166
#define COND_EQUAL 1
167
#define COND_LT    2
168
#define COND_LTEQ  3
169
#define COND_LTU   4
170
#define COND_LTUEQ 5
171
#define COND_SV    6
172
#define COND_OD    7
173

    
174

    
175
/* Logical ADD */
176
#define ARITH_ADD  (INSN_OP(0x02) | INSN_EXT6(0x28))
177
#define ARITH_AND  (INSN_OP(0x02) | INSN_EXT6(0x08))
178
#define ARITH_OR   (INSN_OP(0x02) | INSN_EXT6(0x09))
179
#define ARITH_XOR  (INSN_OP(0x02) | INSN_EXT6(0x0a))
180
#define ARITH_SUB  (INSN_OP(0x02) | INSN_EXT6(0x10))
181

    
182
#define SHD        (INSN_OP(0x34) | INSN_EXT3SH(2))
183
#define VSHD       (INSN_OP(0x34) | INSN_EXT3SH(0))
184
#define DEP        (INSN_OP(0x35) | INSN_EXT3SH(3))
185
#define ZDEP       (INSN_OP(0x35) | INSN_EXT3SH(2))
186
#define ZVDEP      (INSN_OP(0x35) | INSN_EXT3SH(0))
187
#define EXTRU      (INSN_OP(0x34) | INSN_EXT3SH(6))
188
#define EXTRS      (INSN_OP(0x34) | INSN_EXT3SH(7))
189
#define VEXTRS     (INSN_OP(0x34) | INSN_EXT3SH(5))
190

    
191
#define SUBI       (INSN_OP(0x25))
192
#define MTCTL      (INSN_OP(0x00) | INSN_EXT8B(0xc2))
193

    
194
#define BL         (INSN_OP(0x3a) | INSN_EXT3BR(0))
195
#define BLE_SR4    (INSN_OP(0x39) | (1 << 13))
196
#define BV         (INSN_OP(0x3a) | INSN_EXT3BR(6))
197
#define BV_N       (INSN_OP(0x3a) | INSN_EXT3BR(6) | 2)
198
#define LDIL       (INSN_OP(0x08))
199
#define LDO        (INSN_OP(0x0d))
200

    
201
#define LDB        (INSN_OP(0x10))
202
#define LDH        (INSN_OP(0x11))
203
#define LDW        (INSN_OP(0x12))
204
#define LDWM       (INSN_OP(0x13))
205

    
206
#define STB        (INSN_OP(0x18))
207
#define STH        (INSN_OP(0x19))
208
#define STW        (INSN_OP(0x1a))
209
#define STWM       (INSN_OP(0x1b))
210

    
211
#define COMBT      (INSN_OP(0x20))
212
#define COMBF      (INSN_OP(0x22))
213

    
214
static int lowsignext(uint32_t val, int start, int length)
215
{
216
    return (((val << 1) & ~(~0 << length)) |
217
            ((val >> (length - 1)) & 1)) << start;
218
}
219

    
220
static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
221
{
222
    /* PA1.1 defines COPY as OR r,0,t */
223
    tcg_out32(s, ARITH_OR | INSN_T(ret) | INSN_R1(arg) | INSN_R2(TCG_REG_R0));
224

    
225
    /* PA2.0 defines COPY as LDO 0(r),t
226
     * but hppa-dis.c is unaware of this definition */
227
    /* tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(arg) | reassemble_14(0)); */
228
}
229

    
230
static inline void tcg_out_movi(TCGContext *s, TCGType type,
231
                                int ret, tcg_target_long arg)
232
{
233
    if (arg == (arg & 0x1fff)) {
234
        tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(TCG_REG_R0) |
235
                     reassemble_14(arg));
236
    } else {
237
        tcg_out32(s, LDIL | INSN_R2(ret) |
238
                     reassemble_21(lrsel((uint32_t)arg, 0)));
239
        if (arg & 0x7ff)
240
            tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(ret) |
241
                         reassemble_14(rrsel((uint32_t)arg, 0)));
242
    }
243
}
244

    
245
static inline void tcg_out_ld_raw(TCGContext *s, int ret,
246
                                  tcg_target_long arg)
247
{
248
    tcg_out32(s, LDIL | INSN_R2(ret) |
249
                 reassemble_21(lrsel((uint32_t)arg, 0)));
250
    tcg_out32(s, LDW | INSN_R1(ret) | INSN_R2(ret) |
251
                 reassemble_14(rrsel((uint32_t)arg, 0)));
252
}
253

    
254
static inline void tcg_out_ld_ptr(TCGContext *s, int ret,
255
                                  tcg_target_long arg)
256
{
257
    tcg_out_ld_raw(s, ret, arg);
258
}
259

    
260
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset,
261
                                int op)
262
{
263
    if (offset == (offset & 0xfff))
264
        tcg_out32(s, op | INSN_R1(ret) | INSN_R2(addr) |
265
                 reassemble_14(offset));
266
    else {
267
        fprintf(stderr, "unimplemented %s with offset %d\n", __func__, offset);
268
        tcg_abort();
269
    }
270
}
271

    
272
static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret,
273
                              int arg1, tcg_target_long arg2)
274
{
275
    fprintf(stderr, "unimplemented %s\n", __func__);
276
    tcg_abort();
277
}
278

    
279
static inline void tcg_out_st(TCGContext *s, TCGType type, int ret,
280
                              int arg1, tcg_target_long arg2)
281
{
282
    fprintf(stderr, "unimplemented %s\n", __func__);
283
    tcg_abort();
284
}
285

    
286
static inline void tcg_out_arith(TCGContext *s, int t, int r1, int r2, int op)
287
{
288
    tcg_out32(s, op | INSN_T(t) | INSN_R1(r1) | INSN_R2(r2));
289
}
290

    
291
static inline void tcg_out_arithi(TCGContext *s, int t, int r1,
292
                                  tcg_target_long val, int op)
293
{
294
    tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R20, val);
295
    tcg_out_arith(s, t, r1, TCG_REG_R20, op);
296
}
297

    
298
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
299
{
300
    tcg_out_arithi(s, reg, reg, val, ARITH_ADD);
301
}
302

    
303
static inline void tcg_out_nop(TCGContext *s)
304
{
305
    tcg_out32(s, ARITH_OR | INSN_T(TCG_REG_R0) | INSN_R1(TCG_REG_R0) |
306
                 INSN_R2(TCG_REG_R0));
307
}
308

    
309
static inline void tcg_out_ext8s(TCGContext *s, int ret, int arg) {
310
    tcg_out32(s, EXTRS | INSN_R1(ret) | INSN_R2(arg) |
311
                 INSN_SHDEP_P(31) | INSN_DEP_LEN(8));
312
}
313

    
314
static inline void tcg_out_ext16s(TCGContext *s, int ret, int arg) {
315
    tcg_out32(s, EXTRS | INSN_R1(ret) | INSN_R2(arg) |
316
                 INSN_SHDEP_P(31) | INSN_DEP_LEN(16));
317
}
318

    
319
static inline void tcg_out_bswap16(TCGContext *s, int ret, int arg) {
320
    if(ret != arg)
321
        tcg_out_mov(s, ret, arg);
322
    tcg_out32(s, DEP | INSN_R2(ret) | INSN_R1(ret) |
323
                 INSN_SHDEP_CP(15) | INSN_DEP_LEN(8));
324
    tcg_out32(s, SHD | INSN_T(ret) | INSN_R1(TCG_REG_R0) |
325
                 INSN_R2(ret) | INSN_SHDEP_CP(8));
326
}
327

    
328
static inline void tcg_out_bswap32(TCGContext *s, int ret, int arg, int temp) {
329
    tcg_out32(s, SHD | INSN_T(temp) | INSN_R1(arg) |
330
                 INSN_R2(arg) | INSN_SHDEP_CP(16));
331
    tcg_out32(s, DEP | INSN_R2(temp) | INSN_R1(temp) |
332
                 INSN_SHDEP_CP(15) | INSN_DEP_LEN(8));
333
    tcg_out32(s, SHD | INSN_T(ret) | INSN_R1(arg) |
334
                 INSN_R2(temp) | INSN_SHDEP_CP(8));
335
}
336

    
337
static inline void tcg_out_call(TCGContext *s, void *func)
338
{
339
    uint32_t val = (uint32_t)__canonicalize_funcptr_for_compare(func);
340
    tcg_out32(s, LDIL | INSN_R2(TCG_REG_R20) |
341
                 reassemble_21(lrsel(val, 0)));
342
    tcg_out32(s, BLE_SR4 | INSN_R2(TCG_REG_R20) |
343
                 reassemble_17(rrsel(val, 0) >> 2));
344
    tcg_out_mov(s, TCG_REG_RP, TCG_REG_R31);
345
}
346

    
347
#if defined(CONFIG_SOFTMMU)
348

    
349
#include "../../softmmu_defs.h"
350

    
351
static void *qemu_ld_helpers[4] = {
352
    __ldb_mmu,
353
    __ldw_mmu,
354
    __ldl_mmu,
355
    __ldq_mmu,
356
};
357

    
358
static void *qemu_st_helpers[4] = {
359
    __stb_mmu,
360
    __stw_mmu,
361
    __stl_mmu,
362
    __stq_mmu,
363
};
364
#endif
365

    
366
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
367
{
368
    int addr_reg, data_reg, data_reg2, r0, r1, mem_index, s_bits, bswap;
369
#if defined(CONFIG_SOFTMMU)
370
    uint32_t *label1_ptr, *label2_ptr;
371
#endif
372
#if TARGET_LONG_BITS == 64
373
#if defined(CONFIG_SOFTMMU)
374
    uint32_t *label3_ptr;
375
#endif
376
    int addr_reg2;
377
#endif
378

    
379
    data_reg = *args++;
380
    if (opc == 3)
381
        data_reg2 = *args++;
382
    else
383
        data_reg2 = 0; /* surpress warning */
384
    addr_reg = *args++;
385
#if TARGET_LONG_BITS == 64
386
    addr_reg2 = *args++;
387
#endif
388
    mem_index = *args;
389
    s_bits = opc & 3;
390

    
391
    r0 = TCG_REG_R26;
392
    r1 = TCG_REG_R25;
393

    
394
#if defined(CONFIG_SOFTMMU)
395
    tcg_out_mov(s, r1, addr_reg);
396

    
397
    tcg_out_mov(s, r0, addr_reg);
398

    
399
    tcg_out32(s, SHD | INSN_T(r1) | INSN_R1(TCG_REG_R0) | INSN_R2(r1) |
400
                 INSN_SHDEP_CP(TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS));
401

    
402
    tcg_out_arithi(s, r0, r0, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
403
                   ARITH_AND);
404

    
405
    tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
406
                   ARITH_AND);
407

    
408
    tcg_out_arith(s, r1, r1, TCG_AREG0, ARITH_ADD);
409
    tcg_out_arithi(s, r1, r1,
410
                   offsetof(CPUState, tlb_table[mem_index][0].addr_read),
411
                   ARITH_ADD);
412

    
413
    tcg_out_ldst(s, TCG_REG_R20, r1, 0, LDW);
414

    
415
#if TARGET_LONG_BITS == 32
416
    /* if equal, jump to label1 */
417
    label1_ptr = (uint32_t *)s->code_ptr;
418
    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
419
                 INSN_COND(COND_EQUAL));
420
    tcg_out_mov(s, r0, addr_reg); /* delay slot */
421
#else
422
    /* if not equal, jump to label3 */
423
    label3_ptr = (uint32_t *)s->code_ptr;
424
    tcg_out32(s, COMBF | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
425
                 INSN_COND(COND_EQUAL));
426
    tcg_out_mov(s, r0, addr_reg); /* delay slot */
427

    
428
    tcg_out_ldst(s, TCG_REG_R20, r1, 4, LDW);
429

    
430
    /* if equal, jump to label1 */
431
    label1_ptr = (uint32_t *)s->code_ptr;
432
    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(addr_reg2) |
433
                 INSN_COND(COND_EQUAL));
434
    tcg_out_nop(s); /* delay slot */
435

    
436
    /* label3: */
437
    *label3_ptr |= reassemble_12((uint32_t *)s->code_ptr - label3_ptr - 2);
438
#endif
439

    
440
#if TARGET_LONG_BITS == 32
441
    tcg_out_mov(s, TCG_REG_R26, addr_reg);
442
    tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R25, mem_index);
443
#else
444
    tcg_out_mov(s, TCG_REG_R26, addr_reg);
445
    tcg_out_mov(s, TCG_REG_R25, addr_reg2);
446
    tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R24, mem_index);
447
#endif
448

    
449
    tcg_out_call(s, qemu_ld_helpers[s_bits]);
450

    
451
    switch(opc) {
452
        case 0 | 4:
453
            tcg_out_ext8s(s, data_reg, TCG_REG_RET0);
454
            break;
455
        case 1 | 4:
456
            tcg_out_ext16s(s, data_reg, TCG_REG_RET0);
457
            break;
458
        case 0:
459
        case 1:
460
        case 2:
461
        default:
462
            tcg_out_mov(s, data_reg, TCG_REG_RET0);
463
            break;
464
        case 3:
465
            tcg_abort();
466
            tcg_out_mov(s, data_reg, TCG_REG_RET0);
467
            tcg_out_mov(s, data_reg2, TCG_REG_RET1);
468
            break;
469
    }
470

    
471
    /* jump to label2 */
472
    label2_ptr = (uint32_t *)s->code_ptr;
473
    tcg_out32(s, BL | INSN_R2(TCG_REG_R0) | 2);
474

    
475
    /* label1: */
476
    *label1_ptr |= reassemble_12((uint32_t *)s->code_ptr - label1_ptr - 2);
477

    
478
    tcg_out_arithi(s, TCG_REG_R20, r1,
479
                   offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read),
480
                   ARITH_ADD);
481
    tcg_out_ldst(s, TCG_REG_R20, TCG_REG_R20, 0, LDW);
482
    tcg_out_arith(s, r0, r0, TCG_REG_R20, ARITH_ADD);
483
#else
484
    r0 = addr_reg;
485
#endif
486

    
487
#ifdef TARGET_WORDS_BIGENDIAN
488
    bswap = 0;
489
#else
490
    bswap = 1;
491
#endif
492
    switch (opc) {
493
        case 0:
494
            tcg_out_ldst(s, data_reg, r0, 0, LDB);
495
            break;
496
        case 0 | 4:
497
            tcg_out_ldst(s, data_reg, r0, 0, LDB);
498
            tcg_out_ext8s(s, data_reg, data_reg);
499
            break;
500
        case 1:
501
            tcg_out_ldst(s, data_reg, r0, 0, LDH);
502
            if (bswap)
503
                tcg_out_bswap16(s, data_reg, data_reg);
504
            break;
505
        case 1 | 4:
506
            tcg_out_ldst(s, data_reg, r0, 0, LDH);
507
            if (bswap)
508
                tcg_out_bswap16(s, data_reg, data_reg);
509
            tcg_out_ext16s(s, data_reg, data_reg);
510
            break;
511
        case 2:
512
            tcg_out_ldst(s, data_reg, r0, 0, LDW);
513
            if (bswap)
514
                tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20);
515
            break;
516
        case 3:
517
            tcg_abort();
518
            if (!bswap) {
519
                tcg_out_ldst(s, data_reg, r0, 0, LDW);
520
                tcg_out_ldst(s, data_reg2, r0, 4, LDW);
521
            } else {
522
                tcg_out_ldst(s, data_reg, r0, 4, LDW);
523
                tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20);
524
                tcg_out_ldst(s, data_reg2, r0, 0, LDW);
525
                tcg_out_bswap32(s, data_reg2, data_reg2, TCG_REG_R20);
526
            }
527
            break;
528
        default:
529
            tcg_abort();
530
    }
531

    
532
#if defined(CONFIG_SOFTMMU)
533
    /* label2: */
534
    *label2_ptr |= reassemble_17((uint32_t *)s->code_ptr - label2_ptr - 2);
535
#endif
536
}
537

    
538
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
539
{
540
    int addr_reg, data_reg, data_reg2, r0, r1, mem_index, s_bits, bswap;
541
#if defined(CONFIG_SOFTMMU)
542
    uint32_t *label1_ptr, *label2_ptr;
543
#endif
544
#if TARGET_LONG_BITS == 64
545
#if defined(CONFIG_SOFTMMU)
546
    uint32_t *label3_ptr;
547
#endif
548
    int addr_reg2;
549
#endif
550

    
551
    data_reg = *args++;
552
    if (opc == 3)
553
        data_reg2 = *args++;
554
    else
555
        data_reg2 = 0; /* surpress warning */
556
    addr_reg = *args++;
557
#if TARGET_LONG_BITS == 64
558
    addr_reg2 = *args++;
559
#endif
560
    mem_index = *args;
561

    
562
    s_bits = opc;
563

    
564
    r0 = TCG_REG_R26;
565
    r1 = TCG_REG_R25;
566

    
567
#if defined(CONFIG_SOFTMMU)
568
    tcg_out_mov(s, r1, addr_reg);
569

    
570
    tcg_out_mov(s, r0, addr_reg);
571

    
572
    tcg_out32(s, SHD | INSN_T(r1) | INSN_R1(TCG_REG_R0) | INSN_R2(r1) |
573
                 INSN_SHDEP_CP(TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS));
574

    
575
    tcg_out_arithi(s, r0, r0, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
576
                   ARITH_AND);
577

    
578
    tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
579
                   ARITH_AND);
580

    
581
    tcg_out_arith(s, r1, r1, TCG_AREG0, ARITH_ADD);
582
    tcg_out_arithi(s, r1, r1,
583
                   offsetof(CPUState, tlb_table[mem_index][0].addr_write),
584
                   ARITH_ADD);
585

    
586
    tcg_out_ldst(s, TCG_REG_R20, r1, 0, LDW);
587

    
588
#if TARGET_LONG_BITS == 32
589
    /* if equal, jump to label1 */
590
    label1_ptr = (uint32_t *)s->code_ptr;
591
    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
592
                 INSN_COND(COND_EQUAL));
593
    tcg_out_mov(s, r0, addr_reg); /* delay slot */
594
#else
595
    /* if not equal, jump to label3 */
596
    label3_ptr = (uint32_t *)s->code_ptr;
597
    tcg_out32(s, COMBF | INSN_R1(TCG_REG_R20) | INSN_R2(r0) |
598
                 INSN_COND(COND_EQUAL));
599
    tcg_out_mov(s, r0, addr_reg); /* delay slot */
600

    
601
    tcg_out_ldst(s, TCG_REG_R20, r1, 4, LDW);
602

    
603
    /* if equal, jump to label1 */
604
    label1_ptr = (uint32_t *)s->code_ptr;
605
    tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(addr_reg2) |
606
                 INSN_COND(COND_EQUAL));
607
    tcg_out_nop(s); /* delay slot */
608

    
609
    /* label3: */
610
    *label3_ptr |= reassemble_12((uint32_t *)s->code_ptr - label3_ptr - 2);
611
#endif
612

    
613
    tcg_out_mov(s, TCG_REG_R26, addr_reg);
614
#if TARGET_LONG_BITS == 64
615
    tcg_out_mov(s, TCG_REG_R25, addr_reg2);
616
    if (opc == 3) {
617
        tcg_abort();
618
        tcg_out_mov(s, TCG_REG_R24, data_reg);
619
        tcg_out_mov(s, TCG_REG_R23, data_reg2);
620
        /* TODO: push mem_index */
621
        tcg_abort();
622
    } else {
623
        switch(opc) {
624
        case 0:
625
            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R24) | INSN_R2(data_reg) |
626
                         INSN_SHDEP_P(31) | INSN_DEP_LEN(8));
627
            break;
628
        case 1:
629
            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R24) | INSN_R2(data_reg) |
630
                         INSN_SHDEP_P(31) | INSN_DEP_LEN(16));
631
            break;
632
        case 2:
633
            tcg_out_mov(s, TCG_REG_R24, data_reg);
634
            break;
635
        }
636
        tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R23, mem_index);
637
    }
638
#else
639
    if (opc == 3) {
640
        tcg_abort();
641
        tcg_out_mov(s, TCG_REG_R25, data_reg);
642
        tcg_out_mov(s, TCG_REG_R24, data_reg2);
643
        tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R23, mem_index);
644
    } else {
645
        switch(opc) {
646
        case 0:
647
            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R25) | INSN_R2(data_reg) |
648
                         INSN_SHDEP_P(31) | INSN_DEP_LEN(8));
649
            break;
650
        case 1:
651
            tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R25) | INSN_R2(data_reg) |
652
                         INSN_SHDEP_P(31) | INSN_DEP_LEN(16));
653
            break;
654
        case 2:
655
            tcg_out_mov(s, TCG_REG_R25, data_reg);
656
            break;
657
        }
658
        tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R24, mem_index);
659
    }
660
#endif
661
    tcg_out_call(s, qemu_st_helpers[s_bits]);
662

    
663
    /* jump to label2 */
664
    label2_ptr = (uint32_t *)s->code_ptr;
665
    tcg_out32(s, BL | INSN_R2(TCG_REG_R0) | 2);
666

    
667
    /* label1: */
668
    *label1_ptr |= reassemble_12((uint32_t *)s->code_ptr - label1_ptr - 2);
669

    
670
    tcg_out_arithi(s, TCG_REG_R20, r1,
671
                   offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write),
672
                   ARITH_ADD);
673
    tcg_out_ldst(s, TCG_REG_R20, TCG_REG_R20, 0, LDW);
674
    tcg_out_arith(s, r0, r0, TCG_REG_R20, ARITH_ADD);
675
#else
676
    r0 = addr_reg;
677
#endif
678

    
679
#ifdef TARGET_WORDS_BIGENDIAN
680
    bswap = 0;
681
#else
682
    bswap = 1;
683
#endif
684
    switch (opc) {
685
    case 0:
686
        tcg_out_ldst(s, data_reg, r0, 0, STB);
687
        break;
688
    case 1:
689
        if (bswap) {
690
            tcg_out_bswap16(s, TCG_REG_R20, data_reg);
691
            data_reg = TCG_REG_R20;
692
        }
693
        tcg_out_ldst(s, data_reg, r0, 0, STH);
694
        break;
695
    case 2:
696
        if (bswap) {
697
            tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20);
698
            data_reg = TCG_REG_R20;
699
        }
700
        tcg_out_ldst(s, data_reg, r0, 0, STW);
701
        break;
702
    case 3:
703
        tcg_abort();
704
        if (!bswap) {
705
            tcg_out_ldst(s, data_reg, r0, 0, STW);
706
            tcg_out_ldst(s, data_reg2, r0, 4, STW);
707
        } else {
708
            tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20);
709
            tcg_out_ldst(s, TCG_REG_R20, r0, 4, STW);
710
            tcg_out_bswap32(s, TCG_REG_R20, data_reg2, TCG_REG_R20);
711
            tcg_out_ldst(s, TCG_REG_R20, r0, 0, STW);
712
        }
713
        break;
714
    default:
715
        tcg_abort();
716
    }
717

    
718
#if defined(CONFIG_SOFTMMU)
719
    /* label2: */
720
    *label2_ptr |= reassemble_17((uint32_t *)s->code_ptr - label2_ptr - 2);
721
#endif
722
}
723

    
724
static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
725
                              const int *const_args)
726
{
727
    int c;
728

    
729
    switch (opc) {
730
    case INDEX_op_exit_tb:
731
        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RET0, args[0]);
732
        tcg_out32(s, BV_N | INSN_R2(TCG_REG_R18));
733
        break;
734
    case INDEX_op_goto_tb:
735
        if (s->tb_jmp_offset) {
736
            /* direct jump method */
737
            fprintf(stderr, "goto_tb direct\n");
738
            tcg_abort();
739
            tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R20, args[0]);
740
            tcg_out32(s, BV_N | INSN_R2(TCG_REG_R20));
741
            s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
742
        } else {
743
            /* indirect jump method */
744
            tcg_out_ld_ptr(s, TCG_REG_R20,
745
                           (tcg_target_long)(s->tb_next + args[0]));
746
            tcg_out32(s, BV_N | INSN_R2(TCG_REG_R20));
747
        }
748
        s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
749
        break;
750
    case INDEX_op_call:
751
        tcg_out32(s, BLE_SR4 | INSN_R2(args[0]));
752
        tcg_out_mov(s, TCG_REG_RP, TCG_REG_R31);
753
        break;
754
    case INDEX_op_jmp:
755
        fprintf(stderr, "unimplemented jmp\n");
756
        tcg_abort();
757
        break;
758
    case INDEX_op_br:
759
        fprintf(stderr, "unimplemented br\n");
760
        tcg_abort();
761
        break;
762
    case INDEX_op_movi_i32:
763
        tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
764
        break;
765

    
766
    case INDEX_op_ld8u_i32:
767
        tcg_out_ldst(s, args[0], args[1], args[2], LDB);
768
        break;
769
    case INDEX_op_ld8s_i32:
770
        tcg_out_ldst(s, args[0], args[1], args[2], LDB);
771
        tcg_out_ext8s(s, args[0], args[0]);
772
        break;
773
    case INDEX_op_ld16u_i32:
774
        tcg_out_ldst(s, args[0], args[1], args[2], LDH);
775
        break;
776
    case INDEX_op_ld16s_i32:
777
        tcg_out_ldst(s, args[0], args[1], args[2], LDH);
778
        tcg_out_ext16s(s, args[0], args[0]);
779
        break;
780
    case INDEX_op_ld_i32:
781
        tcg_out_ldst(s, args[0], args[1], args[2], LDW);
782
        break;
783

    
784
    case INDEX_op_st8_i32:
785
        tcg_out_ldst(s, args[0], args[1], args[2], STB);
786
        break;
787
    case INDEX_op_st16_i32:
788
        tcg_out_ldst(s, args[0], args[1], args[2], STH);
789
        break;
790
    case INDEX_op_st_i32:
791
        tcg_out_ldst(s, args[0], args[1], args[2], STW);
792
        break;
793

    
794
    case INDEX_op_sub_i32:
795
        c = ARITH_SUB;
796
        goto gen_arith;
797
    case INDEX_op_and_i32:
798
        c = ARITH_AND;
799
        goto gen_arith;
800
    case INDEX_op_or_i32:
801
        c = ARITH_OR;
802
        goto gen_arith;
803
    case INDEX_op_xor_i32:
804
        c = ARITH_XOR;
805
        goto gen_arith;
806
    case INDEX_op_add_i32:
807
        c = ARITH_ADD;
808
        goto gen_arith;
809

    
810
    case INDEX_op_shl_i32:
811
        tcg_out32(s, SUBI | INSN_R1(TCG_REG_R20) | INSN_R2(args[2]) |
812
                     lowsignext(0x1f, 0, 11));
813
        tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(TCG_REG_R20));
814
        tcg_out32(s, ZVDEP | INSN_R2(args[0]) | INSN_R1(args[1]) |
815
                     INSN_DEP_LEN(32));
816
        break;
817
    case INDEX_op_shr_i32:
818
        tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(args[2]));
819
        tcg_out32(s, VSHD | INSN_T(args[0]) | INSN_R1(TCG_REG_R0) |
820
                     INSN_R2(args[1]));
821
        break;
822
    case INDEX_op_sar_i32:
823
        tcg_out32(s, SUBI | INSN_R1(TCG_REG_R20) | INSN_R2(args[2]) |
824
                     lowsignext(0x1f, 0, 11));
825
        tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(TCG_REG_R20));
826
        tcg_out32(s, VEXTRS | INSN_R1(args[0]) | INSN_R2(args[1]) |
827
                     INSN_DEP_LEN(32));
828
        break;
829

    
830
    case INDEX_op_mul_i32:
831
        fprintf(stderr, "unimplemented mul\n");
832
        tcg_abort();
833
        break;
834
    case INDEX_op_mulu2_i32:
835
        fprintf(stderr, "unimplemented mulu2\n");
836
        tcg_abort();
837
        break;
838
    case INDEX_op_div2_i32:
839
        fprintf(stderr, "unimplemented div2\n");
840
        tcg_abort();
841
        break;
842
    case INDEX_op_divu2_i32:
843
        fprintf(stderr, "unimplemented divu2\n");
844
        tcg_abort();
845
        break;
846

    
847
    case INDEX_op_brcond_i32:
848
        fprintf(stderr, "unimplemented brcond\n");
849
        tcg_abort();
850
        break;
851

    
852
    case INDEX_op_qemu_ld8u:
853
        tcg_out_qemu_ld(s, args, 0);
854
        break;
855
    case INDEX_op_qemu_ld8s:
856
        tcg_out_qemu_ld(s, args, 0 | 4);
857
        break;
858
    case INDEX_op_qemu_ld16u:
859
        tcg_out_qemu_ld(s, args, 1);
860
        break;
861
    case INDEX_op_qemu_ld16s:
862
        tcg_out_qemu_ld(s, args, 1 | 4);
863
        break;
864
    case INDEX_op_qemu_ld32u:
865
        tcg_out_qemu_ld(s, args, 2);
866
        break;
867

    
868
    case INDEX_op_qemu_st8:
869
        tcg_out_qemu_st(s, args, 0);
870
        break;
871
    case INDEX_op_qemu_st16:
872
        tcg_out_qemu_st(s, args, 1);
873
        break;
874
    case INDEX_op_qemu_st32:
875
        tcg_out_qemu_st(s, args, 2);
876
        break;
877

    
878
    default:
879
        fprintf(stderr, "unknown opcode 0x%x\n", opc);
880
        tcg_abort();
881
    }
882
    return;
883

    
884
gen_arith:
885
    tcg_out_arith(s, args[0], args[1], args[2], c);
886
}
887

    
888
static const TCGTargetOpDef hppa_op_defs[] = {
889
    { INDEX_op_exit_tb, { } },
890
    { INDEX_op_goto_tb, { } },
891

    
892
    { INDEX_op_call, { "r" } },
893
    { INDEX_op_jmp, { "r" } },
894
    { INDEX_op_br, { } },
895

    
896
    { INDEX_op_mov_i32, { "r", "r" } },
897
    { INDEX_op_movi_i32, { "r" } },
898
    { INDEX_op_ld8u_i32, { "r", "r" } },
899
    { INDEX_op_ld8s_i32, { "r", "r" } },
900
    { INDEX_op_ld16u_i32, { "r", "r" } },
901
    { INDEX_op_ld16s_i32, { "r", "r" } },
902
    { INDEX_op_ld_i32, { "r", "r" } },
903
    { INDEX_op_st8_i32, { "r", "r" } },
904
    { INDEX_op_st16_i32, { "r", "r" } },
905
    { INDEX_op_st_i32, { "r", "r" } },
906

    
907
    { INDEX_op_add_i32, { "r", "r", "r" } },
908
    { INDEX_op_sub_i32, { "r", "r", "r" } },
909
    { INDEX_op_and_i32, { "r", "r", "r" } },
910
    { INDEX_op_or_i32, { "r", "r", "r" } },
911
    { INDEX_op_xor_i32, { "r", "r", "r" } },
912

    
913
    { INDEX_op_shl_i32, { "r", "r", "r" } },
914
    { INDEX_op_shr_i32, { "r", "r", "r" } },
915
    { INDEX_op_sar_i32, { "r", "r", "r" } },
916

    
917
    { INDEX_op_brcond_i32, { "r", "r" } },
918

    
919
#if TARGET_LONG_BITS == 32
920
    { INDEX_op_qemu_ld8u, { "r", "L" } },
921
    { INDEX_op_qemu_ld8s, { "r", "L" } },
922
    { INDEX_op_qemu_ld16u, { "r", "L" } },
923
    { INDEX_op_qemu_ld16s, { "r", "L" } },
924
    { INDEX_op_qemu_ld32u, { "r", "L" } },
925
    { INDEX_op_qemu_ld64, { "r", "r", "L" } },
926

    
927
    { INDEX_op_qemu_st8, { "L", "L" } },
928
    { INDEX_op_qemu_st16, { "L", "L" } },
929
    { INDEX_op_qemu_st32, { "L", "L" } },
930
    { INDEX_op_qemu_st64, { "L", "L", "L" } },
931
#else
932
    { INDEX_op_qemu_ld8u, { "r", "L", "L" } },
933
    { INDEX_op_qemu_ld8s, { "r", "L", "L" } },
934
    { INDEX_op_qemu_ld16u, { "r", "L", "L" } },
935
    { INDEX_op_qemu_ld16s, { "r", "L", "L" } },
936
    { INDEX_op_qemu_ld32u, { "r", "L", "L" } },
937
    { INDEX_op_qemu_ld32s, { "r", "L", "L" } },
938
    { INDEX_op_qemu_ld64, { "r", "r", "L", "L" } },
939

    
940
    { INDEX_op_qemu_st8, { "L", "L", "L" } },
941
    { INDEX_op_qemu_st16, { "L", "L", "L" } },
942
    { INDEX_op_qemu_st32, { "L", "L", "L" } },
943
    { INDEX_op_qemu_st64, { "L", "L", "L", "L" } },
944
#endif
945
    { -1 },
946
};
947

    
948
void tcg_target_init(TCGContext *s)
949
{
950
    tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
951
    tcg_regset_set32(tcg_target_call_clobber_regs, 0,
952
                     (1 << TCG_REG_R20) |
953
                     (1 << TCG_REG_R21) |
954
                     (1 << TCG_REG_R22) |
955
                     (1 << TCG_REG_R23) |
956
                     (1 << TCG_REG_R24) |
957
                     (1 << TCG_REG_R25) |
958
                     (1 << TCG_REG_R26));
959

    
960
    tcg_regset_clear(s->reserved_regs);
961
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);  /* hardwired to zero */
962
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);  /* addil target */
963
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_RP);  /* link register */
964
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R3);  /* frame pointer */
965
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R18); /* return pointer */
966
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R19); /* clobbered w/o pic */
967
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R20); /* reserved */
968
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_DP);  /* data pointer */
969
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP);  /* stack pointer */
970
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_R31); /* ble link reg */
971

    
972
    tcg_add_target_add_op_defs(hppa_op_defs);
973
}