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/*
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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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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
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    "%g0",
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    "%g1",
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    "%g2",
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    "%g3",
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    "%g4",
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    "%g5",
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    "%g6",
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    "%g7",
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    "%o0",
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    "%o1",
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    "%o2",
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    "%o3",
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    "%o4",
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    "%o5",
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    "%o6",
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    "%o7",
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    "%l0",
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    "%l1",
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    "%l2",
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    "%l3",
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    "%l4",
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    "%l5",
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    "%l6",
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    "%l7",
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    "%i0",
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    "%i1",
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    "%i2",
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    "%i3",
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    "%i4",
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    "%i5",
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    "%i6",
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    "%i7",
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};
59

    
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static const int tcg_target_reg_alloc_order[] = {
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    TCG_REG_L0,
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    TCG_REG_L1,
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    TCG_REG_L2,
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    TCG_REG_L3,
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    TCG_REG_L4,
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    TCG_REG_L5,
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    TCG_REG_L6,
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    TCG_REG_L7,
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    TCG_REG_I0,
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    TCG_REG_I1,
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    TCG_REG_I2,
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    TCG_REG_I3,
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    TCG_REG_I4,
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};
75

    
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static const int tcg_target_call_iarg_regs[6] = {
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    TCG_REG_O0,
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    TCG_REG_O1,
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    TCG_REG_O2,
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    TCG_REG_O3,
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    TCG_REG_O4,
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    TCG_REG_O5,
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};
84

    
85
static const int tcg_target_call_oarg_regs[2] = {
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    TCG_REG_O0,
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    TCG_REG_O1,
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};
89

    
90
static inline int check_fit_tl(tcg_target_long val, unsigned int bits)
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{
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    return (val << ((sizeof(tcg_target_long) * 8 - bits))
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            >> (sizeof(tcg_target_long) * 8 - bits)) == val;
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}
95

    
96
static inline int check_fit_i32(uint32_t val, unsigned int bits)
97
{
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    return ((val << (32 - bits)) >> (32 - bits)) == val;
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}
100

    
101
static void patch_reloc(uint8_t *code_ptr, int type,
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                        tcg_target_long value, tcg_target_long addend)
103
{
104
    value += addend;
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    switch (type) {
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    case R_SPARC_32:
107
        if (value != (uint32_t)value)
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            tcg_abort();
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        *(uint32_t *)code_ptr = value;
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        break;
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    case R_SPARC_WDISP22:
112
        value -= (long)code_ptr;
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        value >>= 2;
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        if (!check_fit_tl(value, 22))
115
            tcg_abort();
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        *(uint32_t *)code_ptr = ((*(uint32_t *)code_ptr) & ~0x3fffff) | value;
117
        break;
118
    default:
119
        tcg_abort();
120
    }
121
}
122

    
123
/* maximum number of register used for input function arguments */
124
static inline int tcg_target_get_call_iarg_regs_count(int flags)
125
{
126
    return 6;
127
}
128

    
129
/* parse target specific constraints */
130
static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
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{
132
    const char *ct_str;
133

    
134
    ct_str = *pct_str;
135
    switch (ct_str[0]) {
136
    case 'r':
137
    case 'L': /* qemu_ld/st constraint */
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        ct->ct |= TCG_CT_REG;
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        tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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        tcg_regset_reset_reg(ct->u.regs, TCG_REG_I0);
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        tcg_regset_reset_reg(ct->u.regs, TCG_REG_I1);
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        break;
143
    case 'I':
144
        ct->ct |= TCG_CT_CONST_S11;
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        break;
146
    case 'J':
147
        ct->ct |= TCG_CT_CONST_S13;
148
        break;
149
    default:
150
        return -1;
151
    }
152
    ct_str++;
153
    *pct_str = ct_str;
154
    return 0;
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}
156

    
157
/* test if a constant matches the constraint */
158
static inline int tcg_target_const_match(tcg_target_long val,
159
                                         const TCGArgConstraint *arg_ct)
160
{
161
    int ct;
162

    
163
    ct = arg_ct->ct;
164
    if (ct & TCG_CT_CONST)
165
        return 1;
166
    else if ((ct & TCG_CT_CONST_S11) && check_fit_tl(val, 11))
167
        return 1;
168
    else if ((ct & TCG_CT_CONST_S13) && check_fit_tl(val, 13))
169
        return 1;
170
    else
171
        return 0;
172
}
173

    
174
#define INSN_OP(x)  ((x) << 30)
175
#define INSN_OP2(x) ((x) << 22)
176
#define INSN_OP3(x) ((x) << 19)
177
#define INSN_OPF(x) ((x) << 5)
178
#define INSN_RD(x)  ((x) << 25)
179
#define INSN_RS1(x) ((x) << 14)
180
#define INSN_RS2(x) (x)
181

    
182
#define INSN_IMM13(x) ((1 << 13) | ((x) & 0x1fff))
183
#define INSN_OFF22(x) (((x) >> 2) & 0x3fffff)
184

    
185
#define INSN_COND(x, a) (((x) << 25) | ((a) << 29))
186
#define COND_N     0x0
187
#define COND_E     0x1
188
#define COND_LE    0x2
189
#define COND_L     0x3
190
#define COND_LEU   0x4
191
#define COND_CS    0x5
192
#define COND_NEG   0x6
193
#define COND_VS    0x7
194
#define COND_A     0x8
195
#define COND_NE    0x9
196
#define COND_G     0xa
197
#define COND_GE    0xb
198
#define COND_GU    0xc
199
#define COND_CC    0xd
200
#define COND_POS   0xe
201
#define COND_VC    0xf
202
#define BA         (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2))
203

    
204
#define ARITH_ADD  (INSN_OP(2) | INSN_OP3(0x00))
205
#define ARITH_AND  (INSN_OP(2) | INSN_OP3(0x01))
206
#define ARITH_OR   (INSN_OP(2) | INSN_OP3(0x02))
207
#define ARITH_ORCC (INSN_OP(2) | INSN_OP3(0x12))
208
#define ARITH_XOR  (INSN_OP(2) | INSN_OP3(0x03))
209
#define ARITH_SUB  (INSN_OP(2) | INSN_OP3(0x04))
210
#define ARITH_SUBCC (INSN_OP(2) | INSN_OP3(0x14))
211
#define ARITH_ADDX (INSN_OP(2) | INSN_OP3(0x10))
212
#define ARITH_SUBX (INSN_OP(2) | INSN_OP3(0x0c))
213
#define ARITH_UMUL (INSN_OP(2) | INSN_OP3(0x0a))
214
#define ARITH_UDIV (INSN_OP(2) | INSN_OP3(0x0e))
215
#define ARITH_SDIV (INSN_OP(2) | INSN_OP3(0x0f))
216
#define ARITH_MULX (INSN_OP(2) | INSN_OP3(0x09))
217
#define ARITH_UDIVX (INSN_OP(2) | INSN_OP3(0x0d))
218
#define ARITH_SDIVX (INSN_OP(2) | INSN_OP3(0x2d))
219

    
220
#define SHIFT_SLL  (INSN_OP(2) | INSN_OP3(0x25))
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#define SHIFT_SRL  (INSN_OP(2) | INSN_OP3(0x26))
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#define SHIFT_SRA  (INSN_OP(2) | INSN_OP3(0x27))
223

    
224
#define SHIFT_SLLX (INSN_OP(2) | INSN_OP3(0x25) | (1 << 12))
225
#define SHIFT_SRLX (INSN_OP(2) | INSN_OP3(0x26) | (1 << 12))
226
#define SHIFT_SRAX (INSN_OP(2) | INSN_OP3(0x27) | (1 << 12))
227

    
228
#define WRY        (INSN_OP(2) | INSN_OP3(0x30))
229
#define JMPL       (INSN_OP(2) | INSN_OP3(0x38))
230
#define SAVE       (INSN_OP(2) | INSN_OP3(0x3c))
231
#define RESTORE    (INSN_OP(2) | INSN_OP3(0x3d))
232
#define SETHI      (INSN_OP(0) | INSN_OP2(0x4))
233
#define CALL       INSN_OP(1)
234
#define LDUB       (INSN_OP(3) | INSN_OP3(0x01))
235
#define LDSB       (INSN_OP(3) | INSN_OP3(0x09))
236
#define LDUH       (INSN_OP(3) | INSN_OP3(0x02))
237
#define LDSH       (INSN_OP(3) | INSN_OP3(0x0a))
238
#define LDUW       (INSN_OP(3) | INSN_OP3(0x00))
239
#define LDSW       (INSN_OP(3) | INSN_OP3(0x08))
240
#define LDX        (INSN_OP(3) | INSN_OP3(0x0b))
241
#define STB        (INSN_OP(3) | INSN_OP3(0x05))
242
#define STH        (INSN_OP(3) | INSN_OP3(0x06))
243
#define STW        (INSN_OP(3) | INSN_OP3(0x04))
244
#define STX        (INSN_OP(3) | INSN_OP3(0x0e))
245

    
246
static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
247
{
248
    tcg_out32(s, ARITH_OR | INSN_RD(ret) | INSN_RS1(arg) |
249
              INSN_RS2(TCG_REG_G0));
250
}
251

    
252
static inline void tcg_out_movi(TCGContext *s, TCGType type,
253
                                int ret, tcg_target_long arg)
254
{
255
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
256
    if (!check_fit_tl(arg, 32) && (arg & ~0xffffffff) != 0)
257
        fprintf(stderr, "unimplemented %s with constant %ld\n", __func__, arg);
258
#endif
259
    if (check_fit_i32(arg, 13))
260
        tcg_out32(s, ARITH_OR | INSN_RD(ret) | INSN_RS1(TCG_REG_G0) |
261
                  INSN_IMM13(arg));
262
    else {
263
        tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10));
264
        if (arg & 0x3ff)
265
            tcg_out32(s, ARITH_OR | INSN_RD(ret) | INSN_RS1(ret) |
266
                      INSN_IMM13(arg & 0x3ff));
267
    }
268
}
269

    
270
static inline void tcg_out_ld_raw(TCGContext *s, int ret,
271
                                  tcg_target_long arg)
272
{
273
    tcg_out32(s, SETHI | INSN_RD(ret) | (((uint32_t)arg & 0xfffffc00) >> 10));
274
    tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) |
275
              INSN_IMM13(arg & 0x3ff));
276
}
277

    
278
static inline void tcg_out_ld_ptr(TCGContext *s, int ret,
279
                                  tcg_target_long arg)
280
{
281
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
282
    if (!check_fit_tl(arg, 32) && (arg & ~0xffffffff) != 0)
283
        fprintf(stderr, "unimplemented %s with offset %ld\n", __func__, arg);
284
    if (!check_fit_i32(arg, 13))
285
        tcg_out32(s, SETHI | INSN_RD(ret) | (((uint32_t)arg & 0xfffffc00) >> 10));
286
    tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) |
287
              INSN_IMM13(arg & 0x3ff));
288
#else
289
    tcg_out_ld_raw(s, ret, arg);
290
#endif
291
}
292

    
293
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset, int op)
294
{
295
    if (check_fit_tl(offset, 13))
296
        tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) |
297
                  INSN_IMM13(offset));
298
    else {
299
        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset);
300
        tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) |
301
                  INSN_RS2(addr));
302
    }
303
}
304

    
305
static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret,
306
                              int arg1, tcg_target_long arg2)
307
{
308
    if (type == TCG_TYPE_I32)
309
        tcg_out_ldst(s, ret, arg1, arg2, LDUW);
310
    else
311
        tcg_out_ldst(s, ret, arg1, arg2, LDX);
312
}
313

    
314
static inline void tcg_out_st(TCGContext *s, TCGType type, int arg,
315
                              int arg1, tcg_target_long arg2)
316
{
317
    if (type == TCG_TYPE_I32)
318
        tcg_out_ldst(s, arg, arg1, arg2, STW);
319
    else
320
        tcg_out_ldst(s, arg, arg1, arg2, STX);
321
}
322

    
323
static inline void tcg_out_arith(TCGContext *s, int rd, int rs1, int rs2,
324
                                 int op)
325
{
326
    tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) |
327
              INSN_RS2(rs2));
328
}
329

    
330
static inline void tcg_out_arithi(TCGContext *s, int rd, int rs1, int offset,
331
                                  int op)
332
{
333
    tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) |
334
              INSN_IMM13(offset));
335
}
336

    
337
static inline void tcg_out_sety(TCGContext *s, tcg_target_long val)
338
{
339
    if (val == 0 || val == -1)
340
        tcg_out32(s, WRY | INSN_IMM13(val));
341
    else
342
        fprintf(stderr, "unimplemented sety %ld\n", (long)val);
343
}
344

    
345
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
346
{
347
    if (val != 0) {
348
        if (check_fit_tl(val, 13))
349
            tcg_out_arithi(s, reg, reg, val, ARITH_ADD);
350
        else {
351
            tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, val);
352
            tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_ADD);
353
        }
354
    }
355
}
356

    
357
static inline void tcg_out_nop(TCGContext *s)
358
{
359
    tcg_out32(s, SETHI | INSN_RD(TCG_REG_G0) | 0);
360
}
361

    
362
static void tcg_out_branch(TCGContext *s, int opc, int label_index)
363
{
364
    int32_t val;
365
    TCGLabel *l = &s->labels[label_index];
366

    
367
    if (l->has_value) {
368
        val = l->u.value - (tcg_target_long)s->code_ptr;
369
        tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2)
370
                      | INSN_OFF22(l->u.value - (unsigned long)s->code_ptr)));
371
    } else {
372
        tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP22, label_index, 0);
373
        tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) | 0));
374
    }
375
}
376

    
377
static const uint8_t tcg_cond_to_bcond[10] = {
378
    [TCG_COND_EQ] = COND_E,
379
    [TCG_COND_NE] = COND_NE,
380
    [TCG_COND_LT] = COND_L,
381
    [TCG_COND_GE] = COND_GE,
382
    [TCG_COND_LE] = COND_LE,
383
    [TCG_COND_GT] = COND_G,
384
    [TCG_COND_LTU] = COND_CS,
385
    [TCG_COND_GEU] = COND_CC,
386
    [TCG_COND_LEU] = COND_LEU,
387
    [TCG_COND_GTU] = COND_GU,
388
};
389

    
390
static void tcg_out_brcond(TCGContext *s, int cond,
391
                           TCGArg arg1, TCGArg arg2, int const_arg2,
392
                           int label_index)
393
{
394
    if (const_arg2 && arg2 == 0)
395
        /* orcc r, r, %g0 */
396
        tcg_out_arith(s, TCG_REG_G0, TCG_REG_G0, arg1, ARITH_ORCC);
397
    else
398
        /* subcc r1, r2, %g0 */
399
        tcg_out_arith(s, TCG_REG_G0, arg1, arg2, ARITH_SUBCC);
400
    tcg_out_branch(s, tcg_cond_to_bcond[cond], label_index);
401
    tcg_out_nop(s);
402
}
403

    
404
/* Generate global QEMU prologue and epilogue code */
405
void tcg_target_qemu_prologue(TCGContext *s)
406
{
407
    tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) |
408
              INSN_IMM13(-TCG_TARGET_STACK_MINFRAME));
409
    tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I0) |
410
              INSN_RS2(TCG_REG_G0));
411
    tcg_out_nop(s);
412
}
413

    
414
#if defined(CONFIG_SOFTMMU)
415
extern void __ldb_mmu(void);
416
extern void __ldw_mmu(void);
417
extern void __ldl_mmu(void);
418
extern void __ldq_mmu(void);
419

    
420
extern void __stb_mmu(void);
421
extern void __stw_mmu(void);
422
extern void __stl_mmu(void);
423
extern void __stq_mmu(void);
424

    
425

    
426
static const void * const qemu_ld_helpers[4] = {
427
    __ldb_mmu,
428
    __ldw_mmu,
429
    __ldl_mmu,
430
    __ldq_mmu,
431
};
432

    
433
static const void * const qemu_st_helpers[4] = {
434
    __stb_mmu,
435
    __stw_mmu,
436
    __stl_mmu,
437
    __stq_mmu,
438
};
439
#endif
440

    
441
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
442
                            int opc)
443
{
444
    int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, ld_op;
445
#if defined(CONFIG_SOFTMMU)
446
    uint8_t *label1_ptr, *label2_ptr;
447
#endif
448

    
449
    data_reg = *args++;
450
    addr_reg = *args++;
451
    mem_index = *args;
452
    s_bits = opc & 3;
453

    
454
    r0 = TCG_REG_I0;
455
    r1 = TCG_REG_I1;
456

    
457
#if TARGET_LONG_BITS == 32
458
    ld_op = LDUW;
459
#else
460
    ld_op = LDX;
461
#endif
462

    
463
#if defined(CONFIG_SOFTMMU)
464
    /* srl addr_reg, x, r1 */
465
    tcg_out_arithi(s, r1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS,
466
                   SHIFT_SRL);
467
    /* and addr_reg, x, r0 */
468
    tcg_out_arithi(s, r0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
469
                   ARITH_AND);
470

    
471
    /* and r1, x, r1 */
472
    tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
473
                   ARITH_AND);
474

    
475
    /* add r1, x, r1 */
476
    tcg_out_arithi(s, r1, r1, offsetof(CPUState, tlb_table[mem_index][0].addr_read),
477
                   ARITH_ADD);
478

    
479
    /* ld [env + r1], r1 */
480
    tcg_out_ldst(s, r1, TCG_AREG0, r1, ld_op);
481

    
482
    /* subcc r0, r1, %g0 */
483
    tcg_out_arith(s, TCG_REG_G0, r0, r1, ARITH_SUBCC);
484

    
485
    /* will become:
486
       be label1 */
487
    label1_ptr = s->code_ptr;
488
    tcg_out32(s, 0);
489

    
490
    /* mov (delay slot)*/
491
    tcg_out_mov(s, r0, addr_reg);
492

    
493
    /* XXX: move that code at the end of the TB */
494
    tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits]
495
                           - (tcg_target_ulong)s->code_ptr) >> 2)
496
                         & 0x3fffffff));
497
    /* mov (delay slot)*/
498
    tcg_out_movi(s, TCG_TYPE_I32, r1, mem_index);
499

    
500
    switch(opc) {
501
    case 0 | 4:
502
        /* sll i0, 24/56, i0 */
503
        tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
504
                       sizeof(tcg_target_long) * 8 - 8, SHIFT_SLL);
505
        /* sra i0, 24/56, data_reg */
506
        tcg_out_arithi(s, data_reg, TCG_REG_I0,
507
                       sizeof(tcg_target_long) * 8 - 8, SHIFT_SRA);
508
        break;
509
    case 1 | 4:
510
        /* sll i0, 16/48, i0 */
511
        tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
512
                       sizeof(tcg_target_long) * 8 - 16, SHIFT_SLL);
513
        /* sra i0, 16/48, data_reg */
514
        tcg_out_arithi(s, data_reg, TCG_REG_I0,
515
                       sizeof(tcg_target_long) * 8 - 16, SHIFT_SRA);
516
        break;
517
    case 2 | 4:
518
        /* sll i0, 32, i0 */
519
        tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0, 32, SHIFT_SLL);
520
        /* sra i0, 32, data_reg */
521
        tcg_out_arithi(s, data_reg, TCG_REG_I0, 32, SHIFT_SRA);
522
        break;
523
    case 0:
524
    case 1:
525
    case 2:
526
    case 3:
527
    default:
528
        /* mov */
529
        tcg_out_mov(s, data_reg, TCG_REG_I0);
530
        break;
531
    }
532

    
533
    /* will become:
534
       ba label2 */
535
    label2_ptr = s->code_ptr;
536
    tcg_out32(s, 0);
537

    
538
    /* label1: */
539
    *label1_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
540
                   INSN_OFF22((unsigned long)label1_ptr -
541
                              (unsigned long)s->code_ptr));
542

    
543
    /* ld [r1 + x], r1 */
544
    tcg_out_ldst(s, r1, r1, offsetof(CPUTLBEntry, addend) -
545
                 offsetof(CPUTLBEntry, addr_read), ld_op);
546
    /* add x(r1), r0 */
547
    tcg_out_arith(s, r0, r1, r0, ARITH_ADD);
548
#else
549
    r0 = addr_reg;
550
#endif
551

    
552
#ifdef TARGET_WORDS_BIGENDIAN
553
    bswap = 0;
554
#else
555
    bswap = 1;
556
#endif
557
    switch(opc) {
558
    case 0:
559
        /* ldub [r0], data_reg */
560
        tcg_out_ldst(s, data_reg, r0, 0, LDUB);
561
        break;
562
    case 0 | 4:
563
        /* ldsb [r0], data_reg */
564
        tcg_out_ldst(s, data_reg, r0, 0, LDSB);
565
        break;
566
    case 1:
567
        /* lduh [r0], data_reg */
568
        tcg_out_ldst(s, data_reg, r0, 0, LDUH);
569
        if (bswap) {
570
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
571
        }
572
        break;
573
    case 1 | 4:
574
        /* ldsh [r0], data_reg */
575
        tcg_out_ldst(s, data_reg, r0, 0, LDSH);
576
        if (bswap) {
577
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
578
        }
579
        break;
580
    case 2:
581
        /* lduw [r0], data_reg */
582
        tcg_out_ldst(s, data_reg, r0, 0, LDUW);
583
        if (bswap) {
584
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
585
        }
586
        break;
587
    case 2 | 4:
588
        /* ldsw [r0], data_reg */
589
        tcg_out_ldst(s, data_reg, r0, 0, LDSW);
590
        if (bswap) {
591
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
592
        }
593
        break;
594
    case 3:
595
        /* ldx [r0], data_reg */
596
        tcg_out_ldst(s, data_reg, r0, 0, LDX);
597
        if (bswap) {
598
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
599
        }
600
        break;
601
    default:
602
        tcg_abort();
603
    }
604

    
605
#if defined(CONFIG_SOFTMMU)
606
    /* label2: */
607
    *label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
608
                   INSN_OFF22((unsigned long)label2_ptr -
609
                              (unsigned long)s->code_ptr));
610
#endif
611
}
612

    
613
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
614
                            int opc)
615
{
616
    int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, ld_op;
617
#if defined(CONFIG_SOFTMMU)
618
    uint8_t *label1_ptr, *label2_ptr;
619
#endif
620

    
621
    data_reg = *args++;
622
    addr_reg = *args++;
623
    mem_index = *args;
624

    
625
    s_bits = opc;
626

    
627
    r0 = TCG_REG_I5;
628
    r1 = TCG_REG_I4;
629

    
630
#if TARGET_LONG_BITS == 32
631
    ld_op = LDUW;
632
#else
633
    ld_op = LDX;
634
#endif
635

    
636
#if defined(CONFIG_SOFTMMU)
637
    /* srl addr_reg, x, r1 */
638
    tcg_out_arithi(s, r1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS,
639
                   SHIFT_SRL);
640
    /* and addr_reg, x, r0 */
641
    tcg_out_arithi(s, r0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
642
                   ARITH_AND);
643

    
644
    /* and r1, x, r1 */
645
    tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
646
                   ARITH_AND);
647

    
648
    /* add r1, x, r1 */
649
    tcg_out_arithi(s, r1, r1,
650
                   offsetof(CPUState, tlb_table[mem_index][0].addr_write),
651
                   ARITH_ADD);
652

    
653
    /* ld [env + r1], r1 */
654
    tcg_out_ldst(s, r1, TCG_AREG0, r1, ld_op);
655

    
656
    /* subcc r0, r1, %g0 */
657
    tcg_out_arith(s, TCG_REG_G0, r0, r1, ARITH_SUBCC);
658

    
659
    /* will become:
660
       be label1 */
661
    label1_ptr = s->code_ptr;
662
    tcg_out32(s, 0);
663
    /* mov (delay slot)*/
664
    tcg_out_mov(s, r0, addr_reg);
665

    
666
    switch(opc) {
667
    case 0 | 4:
668
        /* sll i0, 24/56, i0 */
669
        tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
670
                       sizeof(tcg_target_long) * 8 - 8, SHIFT_SLL);
671
        /* sra i0, 24/56, data_reg */
672
        tcg_out_arithi(s, data_reg, TCG_REG_I0,
673
                       sizeof(tcg_target_long) * 8 - 8, SHIFT_SRA);
674
        break;
675
    case 1 | 4:
676
        /* sll i0, 16/48, i0 */
677
        tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
678
                       sizeof(tcg_target_long) * 8 - 16, SHIFT_SLL);
679
        /* sra i0, 16/48, data_reg */
680
        tcg_out_arithi(s, data_reg, TCG_REG_I0,
681
                       sizeof(tcg_target_long) * 8 - 16, SHIFT_SRA);
682
        break;
683
    case 2 | 4:
684
        /* sll i0, 32, i0 */
685
        tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0, 32, SHIFT_SLL);
686
        /* sra i0, 32, data_reg */
687
        tcg_out_arithi(s, data_reg, TCG_REG_I0, 32, SHIFT_SRA);
688
        break;
689
    case 0:
690
    case 1:
691
    case 2:
692
    case 3:
693
    default:
694
        /* mov */
695
        tcg_out_mov(s, data_reg, TCG_REG_I0);
696
        break;
697
    }
698

    
699
    tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[s_bits]
700
                           - (tcg_target_ulong)s->code_ptr) >> 2)
701
                         & 0x3fffffff));
702
    /* mov (delay slot)*/
703
    tcg_out_movi(s, TCG_TYPE_I32, r1, mem_index);
704

    
705
    /* will become:
706
       ba label2 */
707
    label2_ptr = s->code_ptr;
708
    tcg_out32(s, 0);
709

    
710
    /* label1: */
711
    *label1_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
712
                   INSN_OFF22((unsigned long)label1_ptr -
713
                              (unsigned long)s->code_ptr));
714

    
715
    /* ld [r1 + x], r1 */
716
    tcg_out_ldst(s, r1, r1, offsetof(CPUTLBEntry, addend) -
717
                 offsetof(CPUTLBEntry, addr_write), ld_op);
718
    /* add x(r1), r0 */
719
    tcg_out_arith(s, r0, r1, r0, ARITH_ADD);
720
#else
721
    r0 = addr_reg;
722
#endif
723

    
724
#ifdef TARGET_WORDS_BIGENDIAN
725
    bswap = 0;
726
#else
727
    bswap = 1;
728
#endif
729
    switch(opc) {
730
    case 0:
731
        /* stb data_reg, [r0] */
732
        tcg_out_ldst(s, data_reg, r0, 0, STB);
733
        break;
734
    case 1:
735
        if (bswap) {
736
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
737
        }
738
        /* sth data_reg, [r0] */
739
        tcg_out_ldst(s, data_reg, r0, 0, STH);
740
        break;
741
    case 2:
742
        if (bswap) {
743
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
744
        }
745
        /* stw data_reg, [r0] */
746
        tcg_out_ldst(s, data_reg, r0, 0, STW);
747
        break;
748
    case 3:
749
        if (bswap) {
750
            fprintf(stderr, "unimplemented %s with bswap\n", __func__);
751
        }
752
        /* stx data_reg, [r0] */
753
        tcg_out_ldst(s, data_reg, r0, 0, STX);
754
        break;
755
    default:
756
        tcg_abort();
757
    }
758

    
759
#if defined(CONFIG_SOFTMMU)
760
    /* label2: */
761
    *label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
762
                   INSN_OFF22((unsigned long)label2_ptr -
763
                              (unsigned long)s->code_ptr));
764
#endif
765
}
766

    
767
static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
768
                              const int *const_args)
769
{
770
    int c;
771

    
772
    switch (opc) {
773
    case INDEX_op_exit_tb:
774
        tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I0, args[0]);
775
        tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I7) |
776
                  INSN_IMM13(8));
777
        tcg_out32(s, RESTORE | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_G0) |
778
                      INSN_RS2(TCG_REG_G0));
779
        break;
780
    case INDEX_op_goto_tb:
781
        if (s->tb_jmp_offset) {
782
            /* direct jump method */
783
            tcg_out32(s, SETHI | INSN_RD(TCG_REG_I5) |
784
                      ((args[0] & 0xffffe000) >> 10));
785
            tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) |
786
                      INSN_IMM13((args[0] & 0x1fff)));
787
            s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
788
        } else {
789
            /* indirect jump method */
790
            tcg_out_ld_ptr(s, TCG_REG_I5, (tcg_target_long)(s->tb_next + args[0]));
791
            tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) |
792
                      INSN_RS2(TCG_REG_G0));
793
        }
794
        tcg_out_nop(s);
795
        s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
796
        break;
797
    case INDEX_op_call:
798
        if (const_args[0]) {
799
            tcg_out32(s, CALL | ((((tcg_target_ulong)args[0]
800
                                  - (tcg_target_ulong)s->code_ptr) >> 2)
801
                                 & 0x3fffffff));
802
            tcg_out_nop(s);
803
        } else {
804
            tcg_out_ld_ptr(s, TCG_REG_I5, (tcg_target_long)(s->tb_next + args[0]));
805
            tcg_out32(s, JMPL | INSN_RD(TCG_REG_O7) | INSN_RS1(TCG_REG_I5) |
806
                      INSN_RS2(TCG_REG_G0));
807
            tcg_out_nop(s);
808
        }
809
        break;
810
    case INDEX_op_jmp:
811
    case INDEX_op_br:
812
        tcg_out_branch(s, COND_A, args[0]);
813
        tcg_out_nop(s);
814
        break;
815
    case INDEX_op_movi_i32:
816
        tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
817
        break;
818

    
819
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
820
#define OP_32_64(x)                             \
821
        glue(glue(case INDEX_op_, x), _i32:)    \
822
        glue(glue(case INDEX_op_, x), _i64:)
823
#else
824
#define OP_32_64(x)                             \
825
        glue(glue(case INDEX_op_, x), _i32:)
826
#endif
827
        OP_32_64(ld8u);
828
        tcg_out_ldst(s, args[0], args[1], args[2], LDUB);
829
        break;
830
        OP_32_64(ld8s);
831
        tcg_out_ldst(s, args[0], args[1], args[2], LDSB);
832
        break;
833
        OP_32_64(ld16u);
834
        tcg_out_ldst(s, args[0], args[1], args[2], LDUH);
835
        break;
836
        OP_32_64(ld16s);
837
        tcg_out_ldst(s, args[0], args[1], args[2], LDSH);
838
        break;
839
    case INDEX_op_ld_i32:
840
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
841
    case INDEX_op_ld32u_i64:
842
#endif
843
        tcg_out_ldst(s, args[0], args[1], args[2], LDUW);
844
        break;
845
        OP_32_64(st8);
846
        tcg_out_ldst(s, args[0], args[1], args[2], STB);
847
        break;
848
        OP_32_64(st16);
849
        tcg_out_ldst(s, args[0], args[1], args[2], STH);
850
        break;
851
    case INDEX_op_st_i32:
852
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
853
    case INDEX_op_st32_i64:
854
#endif
855
        tcg_out_ldst(s, args[0], args[1], args[2], STW);
856
        break;
857
        OP_32_64(add);
858
        c = ARITH_ADD;
859
        goto gen_arith32;
860
        OP_32_64(sub);
861
        c = ARITH_SUB;
862
        goto gen_arith32;
863
        OP_32_64(and);
864
        c = ARITH_AND;
865
        goto gen_arith32;
866
        OP_32_64(or);
867
        c = ARITH_OR;
868
        goto gen_arith32;
869
        OP_32_64(xor);
870
        c = ARITH_XOR;
871
        goto gen_arith32;
872
    case INDEX_op_shl_i32:
873
        c = SHIFT_SLL;
874
        goto gen_arith32;
875
    case INDEX_op_shr_i32:
876
        c = SHIFT_SRL;
877
        goto gen_arith32;
878
    case INDEX_op_sar_i32:
879
        c = SHIFT_SRA;
880
        goto gen_arith32;
881
    case INDEX_op_mul_i32:
882
        c = ARITH_UMUL;
883
        goto gen_arith32;
884
    case INDEX_op_div2_i32:
885
#if defined(__sparc_v9__) || defined(__sparc_v8plus__)
886
        c = ARITH_SDIVX;
887
        goto gen_arith32;
888
#else
889
        tcg_out_sety(s, 0);
890
        c = ARITH_SDIV;
891
        goto gen_arith32;
892
#endif
893
    case INDEX_op_divu2_i32:
894
#if defined(__sparc_v9__) || defined(__sparc_v8plus__)
895
        c = ARITH_UDIVX;
896
        goto gen_arith32;
897
#else
898
        tcg_out_sety(s, 0);
899
        c = ARITH_UDIV;
900
        goto gen_arith32;
901
#endif
902

    
903
    case INDEX_op_brcond_i32:
904
        tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
905
                       args[3]);
906
        break;
907

    
908
    case INDEX_op_qemu_ld8u:
909
        tcg_out_qemu_ld(s, args, 0);
910
        break;
911
    case INDEX_op_qemu_ld8s:
912
        tcg_out_qemu_ld(s, args, 0 | 4);
913
        break;
914
    case INDEX_op_qemu_ld16u:
915
        tcg_out_qemu_ld(s, args, 1);
916
        break;
917
    case INDEX_op_qemu_ld16s:
918
        tcg_out_qemu_ld(s, args, 1 | 4);
919
        break;
920
    case INDEX_op_qemu_ld32u:
921
        tcg_out_qemu_ld(s, args, 2);
922
        break;
923
    case INDEX_op_qemu_ld32s:
924
        tcg_out_qemu_ld(s, args, 2 | 4);
925
        break;
926
    case INDEX_op_qemu_st8:
927
        tcg_out_qemu_st(s, args, 0);
928
        break;
929
    case INDEX_op_qemu_st16:
930
        tcg_out_qemu_st(s, args, 1);
931
        break;
932
    case INDEX_op_qemu_st32:
933
        tcg_out_qemu_st(s, args, 2);
934
        break;
935

    
936
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
937
    case INDEX_op_movi_i64:
938
        tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]);
939
        break;
940
    case INDEX_op_ld32s_i64:
941
        tcg_out_ldst(s, args[0], args[1], args[2], LDSW);
942
        break;
943
    case INDEX_op_ld_i64:
944
        tcg_out_ldst(s, args[0], args[1], args[2], LDX);
945
        break;
946
    case INDEX_op_st_i64:
947
        tcg_out_ldst(s, args[0], args[1], args[2], STX);
948
        break;
949
    case INDEX_op_shl_i64:
950
        c = SHIFT_SLLX;
951
        goto gen_arith32;
952
    case INDEX_op_shr_i64:
953
        c = SHIFT_SRLX;
954
        goto gen_arith32;
955
    case INDEX_op_sar_i64:
956
        c = SHIFT_SRAX;
957
        goto gen_arith32;
958
    case INDEX_op_mul_i64:
959
        c = ARITH_MULX;
960
        goto gen_arith32;
961
    case INDEX_op_div2_i64:
962
        c = ARITH_SDIVX;
963
        goto gen_arith32;
964
    case INDEX_op_divu2_i64:
965
        c = ARITH_UDIVX;
966
        goto gen_arith32;
967

    
968
    case INDEX_op_brcond_i64:
969
        tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
970
                       args[3]);
971
        break;
972
    case INDEX_op_qemu_ld64:
973
        tcg_out_qemu_ld(s, args, 3);
974
        break;
975
    case INDEX_op_qemu_st64:
976
        tcg_out_qemu_st(s, args, 3);
977
        break;
978

    
979
#endif
980
    gen_arith32:
981
        if (const_args[2]) {
982
            tcg_out_arithi(s, args[0], args[1], args[2], c);
983
        } else {
984
            tcg_out_arith(s, args[0], args[1], args[2], c);
985
        }
986
        break;
987

    
988
    default:
989
        fprintf(stderr, "unknown opcode 0x%x\n", opc);
990
        tcg_abort();
991
    }
992
}
993

    
994
static const TCGTargetOpDef sparc_op_defs[] = {
995
    { INDEX_op_exit_tb, { } },
996
    { INDEX_op_goto_tb, { } },
997
    { INDEX_op_call, { "ri" } },
998
    { INDEX_op_jmp, { "ri" } },
999
    { INDEX_op_br, { } },
1000

    
1001
    { INDEX_op_mov_i32, { "r", "r" } },
1002
    { INDEX_op_movi_i32, { "r" } },
1003
    { INDEX_op_ld8u_i32, { "r", "r" } },
1004
    { INDEX_op_ld8s_i32, { "r", "r" } },
1005
    { INDEX_op_ld16u_i32, { "r", "r" } },
1006
    { INDEX_op_ld16s_i32, { "r", "r" } },
1007
    { INDEX_op_ld_i32, { "r", "r" } },
1008
    { INDEX_op_st8_i32, { "r", "r" } },
1009
    { INDEX_op_st16_i32, { "r", "r" } },
1010
    { INDEX_op_st_i32, { "r", "r" } },
1011

    
1012
    { INDEX_op_add_i32, { "r", "r", "rJ" } },
1013
    { INDEX_op_mul_i32, { "r", "r", "rJ" } },
1014
    { INDEX_op_div2_i32, { "r", "r", "0", "1", "r" } },
1015
    { INDEX_op_divu2_i32, { "r", "r", "0", "1", "r" } },
1016
    { INDEX_op_sub_i32, { "r", "r", "rJ" } },
1017
    { INDEX_op_and_i32, { "r", "r", "rJ" } },
1018
    { INDEX_op_or_i32, { "r", "r", "rJ" } },
1019
    { INDEX_op_xor_i32, { "r", "r", "rJ" } },
1020

    
1021
    { INDEX_op_shl_i32, { "r", "r", "rJ" } },
1022
    { INDEX_op_shr_i32, { "r", "r", "rJ" } },
1023
    { INDEX_op_sar_i32, { "r", "r", "rJ" } },
1024

    
1025
    { INDEX_op_brcond_i32, { "r", "ri" } },
1026

    
1027
    { INDEX_op_qemu_ld8u, { "r", "L" } },
1028
    { INDEX_op_qemu_ld8s, { "r", "L" } },
1029
    { INDEX_op_qemu_ld16u, { "r", "L" } },
1030
    { INDEX_op_qemu_ld16s, { "r", "L" } },
1031
    { INDEX_op_qemu_ld32u, { "r", "L" } },
1032
    { INDEX_op_qemu_ld32s, { "r", "L" } },
1033

    
1034
    { INDEX_op_qemu_st8, { "L", "L" } },
1035
    { INDEX_op_qemu_st16, { "L", "L" } },
1036
    { INDEX_op_qemu_st32, { "L", "L" } },
1037

    
1038
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
1039
    { INDEX_op_mov_i64, { "r", "r" } },
1040
    { INDEX_op_movi_i64, { "r" } },
1041
    { INDEX_op_ld8u_i64, { "r", "r" } },
1042
    { INDEX_op_ld8s_i64, { "r", "r" } },
1043
    { INDEX_op_ld16u_i64, { "r", "r" } },
1044
    { INDEX_op_ld16s_i64, { "r", "r" } },
1045
    { INDEX_op_ld32u_i64, { "r", "r" } },
1046
    { INDEX_op_ld32s_i64, { "r", "r" } },
1047
    { INDEX_op_ld_i64, { "r", "r" } },
1048
    { INDEX_op_st8_i64, { "r", "r" } },
1049
    { INDEX_op_st16_i64, { "r", "r" } },
1050
    { INDEX_op_st32_i64, { "r", "r" } },
1051
    { INDEX_op_st_i64, { "r", "r" } },
1052

    
1053
    { INDEX_op_add_i64, { "r", "r", "rJ" } },
1054
    { INDEX_op_mul_i64, { "r", "r", "rJ" } },
1055
    { INDEX_op_div2_i64, { "r", "r", "0", "1", "r" } },
1056
    { INDEX_op_divu2_i64, { "r", "r", "0", "1", "r" } },
1057
    { INDEX_op_sub_i64, { "r", "r", "rJ" } },
1058
    { INDEX_op_and_i64, { "r", "r", "rJ" } },
1059
    { INDEX_op_or_i64, { "r", "r", "rJ" } },
1060
    { INDEX_op_xor_i64, { "r", "r", "rJ" } },
1061

    
1062
    { INDEX_op_shl_i64, { "r", "r", "rJ" } },
1063
    { INDEX_op_shr_i64, { "r", "r", "rJ" } },
1064
    { INDEX_op_sar_i64, { "r", "r", "rJ" } },
1065

    
1066
    { INDEX_op_brcond_i64, { "r", "ri" } },
1067
#endif
1068
    { -1 },
1069
};
1070

    
1071
void tcg_target_init(TCGContext *s)
1072
{
1073
    tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
1074
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
1075
    tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
1076
#endif
1077
    tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1078
                     (1 << TCG_REG_G1) |
1079
                     (1 << TCG_REG_G2) |
1080
                     (1 << TCG_REG_G3) |
1081
                     (1 << TCG_REG_G4) |
1082
                     (1 << TCG_REG_G5) |
1083
                     (1 << TCG_REG_G6) |
1084
                     (1 << TCG_REG_G7) |
1085
                     (1 << TCG_REG_O0) |
1086
                     (1 << TCG_REG_O1) |
1087
                     (1 << TCG_REG_O2) |
1088
                     (1 << TCG_REG_O3) |
1089
                     (1 << TCG_REG_O4) |
1090
                     (1 << TCG_REG_O5) |
1091
                     (1 << TCG_REG_O7));
1092

    
1093
    tcg_regset_clear(s->reserved_regs);
1094
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_G0);
1095
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_I5); // for internal use
1096
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6);
1097
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7);
1098
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6);
1099
    tcg_regset_set_reg(s->reserved_regs, TCG_REG_O7);
1100
    tcg_add_target_add_op_defs(sparc_op_defs);
1101
}