|
1 |
/*
|
|
2 |
* Tiny Code Generator for QEMU
|
|
3 |
*
|
|
4 |
* Copyright (c) 2008-2009 Arnaud Patard <arnaud.patard@rtp-net.org>
|
|
5 |
* Copyright (c) 2009 Aurelien Jarno <aurelien@aurel32.net>
|
|
6 |
* Based on i386/tcg-target.c - Copyright (c) 2008 Fabrice Bellard
|
|
7 |
*
|
|
8 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
9 |
* of this software and associated documentation files (the "Software"), to deal
|
|
10 |
* in the Software without restriction, including without limitation the rights
|
|
11 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
12 |
* copies of the Software, and to permit persons to whom the Software is
|
|
13 |
* furnished to do so, subject to the following conditions:
|
|
14 |
*
|
|
15 |
* The above copyright notice and this permission notice shall be included in
|
|
16 |
* all copies or substantial portions of the Software.
|
|
17 |
*
|
|
18 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
19 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
20 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
21 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
22 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
23 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
24 |
* THE SOFTWARE.
|
|
25 |
*/
|
|
26 |
|
|
27 |
#if defined(TCG_TARGET_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
|
|
28 |
# define TCG_NEED_BSWAP 0
|
|
29 |
#else
|
|
30 |
# define TCG_NEED_BSWAP 1
|
|
31 |
#endif
|
|
32 |
|
|
33 |
#ifndef NDEBUG
|
|
34 |
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
|
|
35 |
"zero",
|
|
36 |
"at",
|
|
37 |
"v0",
|
|
38 |
"v1",
|
|
39 |
"a0",
|
|
40 |
"a1",
|
|
41 |
"a2",
|
|
42 |
"a3",
|
|
43 |
"t0",
|
|
44 |
"t1",
|
|
45 |
"t2",
|
|
46 |
"t3",
|
|
47 |
"t4",
|
|
48 |
"t5",
|
|
49 |
"t6",
|
|
50 |
"t7",
|
|
51 |
"s0",
|
|
52 |
"s1",
|
|
53 |
"s2",
|
|
54 |
"s3",
|
|
55 |
"s4",
|
|
56 |
"s5",
|
|
57 |
"s6",
|
|
58 |
"s7",
|
|
59 |
"t8",
|
|
60 |
"t9",
|
|
61 |
"k0",
|
|
62 |
"k1",
|
|
63 |
"gp",
|
|
64 |
"sp",
|
|
65 |
"fp",
|
|
66 |
"ra",
|
|
67 |
};
|
|
68 |
#endif
|
|
69 |
|
|
70 |
/* check if we really need so many registers :P */
|
|
71 |
static const int tcg_target_reg_alloc_order[] = {
|
|
72 |
TCG_REG_S0,
|
|
73 |
TCG_REG_S1,
|
|
74 |
TCG_REG_S2,
|
|
75 |
TCG_REG_S3,
|
|
76 |
TCG_REG_S4,
|
|
77 |
TCG_REG_S5,
|
|
78 |
TCG_REG_S6,
|
|
79 |
TCG_REG_S7,
|
|
80 |
TCG_REG_T1,
|
|
81 |
TCG_REG_T2,
|
|
82 |
TCG_REG_T3,
|
|
83 |
TCG_REG_T4,
|
|
84 |
TCG_REG_T5,
|
|
85 |
TCG_REG_T6,
|
|
86 |
TCG_REG_T7,
|
|
87 |
TCG_REG_T8,
|
|
88 |
TCG_REG_T9,
|
|
89 |
TCG_REG_A0,
|
|
90 |
TCG_REG_A1,
|
|
91 |
TCG_REG_A2,
|
|
92 |
TCG_REG_A3,
|
|
93 |
TCG_REG_V0,
|
|
94 |
TCG_REG_V1
|
|
95 |
};
|
|
96 |
|
|
97 |
static const int tcg_target_call_iarg_regs[4] = {
|
|
98 |
TCG_REG_A0,
|
|
99 |
TCG_REG_A1,
|
|
100 |
TCG_REG_A2,
|
|
101 |
TCG_REG_A3
|
|
102 |
};
|
|
103 |
|
|
104 |
static const int tcg_target_call_oarg_regs[2] = {
|
|
105 |
TCG_REG_V0,
|
|
106 |
TCG_REG_V1
|
|
107 |
};
|
|
108 |
|
|
109 |
static uint8_t *tb_ret_addr;
|
|
110 |
|
|
111 |
static inline uint32_t reloc_lo16_val (void *pc, tcg_target_long target)
|
|
112 |
{
|
|
113 |
return target & 0xffff;
|
|
114 |
}
|
|
115 |
|
|
116 |
static inline void reloc_lo16 (void *pc, tcg_target_long target)
|
|
117 |
{
|
|
118 |
*(uint32_t *) pc = (*(uint32_t *) pc & ~0xffff)
|
|
119 |
| reloc_lo16_val(pc, target);
|
|
120 |
}
|
|
121 |
|
|
122 |
static inline uint32_t reloc_hi16_val (void *pc, tcg_target_long target)
|
|
123 |
{
|
|
124 |
return (target >> 16) & 0xffff;
|
|
125 |
}
|
|
126 |
|
|
127 |
static inline void reloc_hi16 (void *pc, tcg_target_long target)
|
|
128 |
{
|
|
129 |
*(uint32_t *) pc = (*(uint32_t *) pc & ~0xffff)
|
|
130 |
| reloc_hi16_val(pc, target);
|
|
131 |
}
|
|
132 |
|
|
133 |
static inline uint32_t reloc_pc16_val (void *pc, tcg_target_long target)
|
|
134 |
{
|
|
135 |
int32_t disp;
|
|
136 |
|
|
137 |
disp = target - (tcg_target_long) pc - 4;
|
|
138 |
if (disp != (disp << 14) >> 14) {
|
|
139 |
tcg_abort ();
|
|
140 |
}
|
|
141 |
|
|
142 |
return (disp >> 2) & 0xffff;
|
|
143 |
}
|
|
144 |
|
|
145 |
static inline void reloc_pc16 (void *pc, tcg_target_long target)
|
|
146 |
{
|
|
147 |
*(uint32_t *) pc = (*(uint32_t *) pc & ~0xffff)
|
|
148 |
| reloc_pc16_val(pc, target);
|
|
149 |
}
|
|
150 |
|
|
151 |
static inline uint32_t reloc_26_val (void *pc, tcg_target_long target)
|
|
152 |
{
|
|
153 |
if ((((tcg_target_long)pc + 4) & 0xf0000000) != (target & 0xf0000000)) {
|
|
154 |
tcg_abort ();
|
|
155 |
}
|
|
156 |
|
|
157 |
return (target >> 2) & 0x3ffffff;
|
|
158 |
}
|
|
159 |
|
|
160 |
static inline void reloc_pc26 (void *pc, tcg_target_long target)
|
|
161 |
{
|
|
162 |
*(uint32_t *) pc = (*(uint32_t *) pc & ~0x3ffffff)
|
|
163 |
| reloc_26_val(pc, target);
|
|
164 |
}
|
|
165 |
|
|
166 |
static void patch_reloc(uint8_t *code_ptr, int type,
|
|
167 |
tcg_target_long value, tcg_target_long addend)
|
|
168 |
{
|
|
169 |
value += addend;
|
|
170 |
switch(type) {
|
|
171 |
case R_MIPS_LO16:
|
|
172 |
reloc_lo16(code_ptr, value);
|
|
173 |
break;
|
|
174 |
case R_MIPS_HI16:
|
|
175 |
reloc_hi16(code_ptr, value);
|
|
176 |
break;
|
|
177 |
case R_MIPS_PC16:
|
|
178 |
reloc_pc16(code_ptr, value);
|
|
179 |
break;
|
|
180 |
case R_MIPS_26:
|
|
181 |
reloc_pc26(code_ptr, value);
|
|
182 |
break;
|
|
183 |
default:
|
|
184 |
tcg_abort();
|
|
185 |
}
|
|
186 |
}
|
|
187 |
|
|
188 |
/* maximum number of register used for input function arguments */
|
|
189 |
static inline int tcg_target_get_call_iarg_regs_count(int flags)
|
|
190 |
{
|
|
191 |
return 4;
|
|
192 |
}
|
|
193 |
|
|
194 |
/* parse target specific constraints */
|
|
195 |
static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
|
|
196 |
{
|
|
197 |
const char *ct_str;
|
|
198 |
|
|
199 |
ct_str = *pct_str;
|
|
200 |
switch(ct_str[0]) {
|
|
201 |
case 'r':
|
|
202 |
ct->ct |= TCG_CT_REG;
|
|
203 |
tcg_regset_set(ct->u.regs, 0xffffffff);
|
|
204 |
break;
|
|
205 |
case 'C':
|
|
206 |
ct->ct |= TCG_CT_REG;
|
|
207 |
tcg_regset_clear(ct->u.regs);
|
|
208 |
tcg_regset_set_reg(ct->u.regs, TCG_REG_T9);
|
|
209 |
break;
|
|
210 |
case 'L': /* qemu_ld output arg constraint */
|
|
211 |
ct->ct |= TCG_CT_REG;
|
|
212 |
tcg_regset_set(ct->u.regs, 0xffffffff);
|
|
213 |
tcg_regset_reset_reg(ct->u.regs, TCG_REG_V0);
|
|
214 |
break;
|
|
215 |
case 'l': /* qemu_ld input arg constraint */
|
|
216 |
ct->ct |= TCG_CT_REG;
|
|
217 |
tcg_regset_set(ct->u.regs, 0xffffffff);
|
|
218 |
#if defined(CONFIG_SOFTMMU)
|
|
219 |
tcg_regset_reset_reg(ct->u.regs, TCG_REG_A0);
|
|
220 |
#endif
|
|
221 |
break;
|
|
222 |
case 'S': /* qemu_st constraint */
|
|
223 |
ct->ct |= TCG_CT_REG;
|
|
224 |
tcg_regset_set(ct->u.regs, 0xffffffff);
|
|
225 |
#if defined(CONFIG_SOFTMMU)
|
|
226 |
tcg_regset_reset_reg(ct->u.regs, TCG_REG_A0);
|
|
227 |
# if TARGET_LONG_BITS == 64
|
|
228 |
tcg_regset_reset_reg(ct->u.regs, TCG_REG_A1);
|
|
229 |
# endif
|
|
230 |
tcg_regset_reset_reg(ct->u.regs, TCG_REG_A2);
|
|
231 |
#endif
|
|
232 |
break;
|
|
233 |
case 'I':
|
|
234 |
ct->ct |= TCG_CT_CONST_U16;
|
|
235 |
break;
|
|
236 |
case 'J':
|
|
237 |
ct->ct |= TCG_CT_CONST_S16;
|
|
238 |
break;
|
|
239 |
case 'Z':
|
|
240 |
/* We are cheating a bit here, using the fact that the register
|
|
241 |
ZERO is also the register number 0. Hence there is no need
|
|
242 |
to check for const_args in each instruction. */
|
|
243 |
ct->ct |= TCG_CT_CONST_ZERO;
|
|
244 |
break;
|
|
245 |
default:
|
|
246 |
return -1;
|
|
247 |
}
|
|
248 |
ct_str++;
|
|
249 |
*pct_str = ct_str;
|
|
250 |
return 0;
|
|
251 |
}
|
|
252 |
|
|
253 |
/* test if a constant matches the constraint */
|
|
254 |
static inline int tcg_target_const_match(tcg_target_long val,
|
|
255 |
const TCGArgConstraint *arg_ct)
|
|
256 |
{
|
|
257 |
int ct;
|
|
258 |
ct = arg_ct->ct;
|
|
259 |
if (ct & TCG_CT_CONST)
|
|
260 |
return 1;
|
|
261 |
else if ((ct & TCG_CT_CONST_ZERO) && val == 0)
|
|
262 |
return 1;
|
|
263 |
else if ((ct & TCG_CT_CONST_U16) && val == (uint16_t)val)
|
|
264 |
return 1;
|
|
265 |
else if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val)
|
|
266 |
return 1;
|
|
267 |
else
|
|
268 |
return 0;
|
|
269 |
}
|
|
270 |
|
|
271 |
/* instruction opcodes */
|
|
272 |
enum {
|
|
273 |
OPC_SPECIAL = 0x00 << 26,
|
|
274 |
OPC_BEQ = 0x04 << 26,
|
|
275 |
OPC_BNE = 0x05 << 26,
|
|
276 |
OPC_ADDIU = 0x09 << 26,
|
|
277 |
OPC_ANDI = 0x0C << 26,
|
|
278 |
OPC_ORI = 0x0D << 26,
|
|
279 |
OPC_XORI = 0x0E << 26,
|
|
280 |
OPC_LUI = 0x0F << 26,
|
|
281 |
OPC_LB = 0x20 << 26,
|
|
282 |
OPC_LH = 0x21 << 26,
|
|
283 |
OPC_LW = 0x23 << 26,
|
|
284 |
OPC_LBU = 0x24 << 26,
|
|
285 |
OPC_LHU = 0x25 << 26,
|
|
286 |
OPC_LWU = 0x27 << 26,
|
|
287 |
OPC_SB = 0x28 << 26,
|
|
288 |
OPC_SH = 0x29 << 26,
|
|
289 |
OPC_SW = 0x2B << 26,
|
|
290 |
OPC_SLL = OPC_SPECIAL | 0x00,
|
|
291 |
OPC_SRL = OPC_SPECIAL | 0x02,
|
|
292 |
OPC_SRA = OPC_SPECIAL | 0x03,
|
|
293 |
OPC_SLLV = OPC_SPECIAL | 0x04,
|
|
294 |
OPC_SRLV = OPC_SPECIAL | 0x06,
|
|
295 |
OPC_SRAV = OPC_SPECIAL | 0x07,
|
|
296 |
OPC_JR = OPC_SPECIAL | 0x08,
|
|
297 |
OPC_JALR = OPC_SPECIAL | 0x09,
|
|
298 |
OPC_MFHI = OPC_SPECIAL | 0x10,
|
|
299 |
OPC_MFLO = OPC_SPECIAL | 0x12,
|
|
300 |
OPC_MULT = OPC_SPECIAL | 0x18,
|
|
301 |
OPC_MULTU = OPC_SPECIAL | 0x19,
|
|
302 |
OPC_DIV = OPC_SPECIAL | 0x1A,
|
|
303 |
OPC_DIVU = OPC_SPECIAL | 0x1B,
|
|
304 |
OPC_ADDU = OPC_SPECIAL | 0x21,
|
|
305 |
OPC_SUBU = OPC_SPECIAL | 0x23,
|
|
306 |
OPC_AND = OPC_SPECIAL | 0x24,
|
|
307 |
OPC_OR = OPC_SPECIAL | 0x25,
|
|
308 |
OPC_XOR = OPC_SPECIAL | 0x26,
|
|
309 |
OPC_NOR = OPC_SPECIAL | 0x27,
|
|
310 |
OPC_SLT = OPC_SPECIAL | 0x2A,
|
|
311 |
OPC_SLTU = OPC_SPECIAL | 0x2B,
|
|
312 |
};
|
|
313 |
|
|
314 |
/*
|
|
315 |
* Type reg
|
|
316 |
*/
|
|
317 |
static inline void tcg_out_opc_reg(TCGContext *s, int opc, int rd, int rs, int rt)
|
|
318 |
{
|
|
319 |
int32_t inst;
|
|
320 |
|
|
321 |
inst = opc;
|
|
322 |
inst |= (rs & 0x1F) << 21;
|
|
323 |
inst |= (rt & 0x1F) << 16;
|
|
324 |
inst |= (rd & 0x1F) << 11;
|
|
325 |
tcg_out32(s, inst);
|
|
326 |
}
|
|
327 |
|
|
328 |
/*
|
|
329 |
* Type immediate
|
|
330 |
*/
|
|
331 |
static inline void tcg_out_opc_imm(TCGContext *s, int opc, int rt, int rs, int imm)
|
|
332 |
{
|
|
333 |
int32_t inst;
|
|
334 |
|
|
335 |
inst = opc;
|
|
336 |
inst |= (rs & 0x1F) << 21;
|
|
337 |
inst |= (rt & 0x1F) << 16;
|
|
338 |
inst |= (imm & 0xffff);
|
|
339 |
tcg_out32(s, inst);
|
|
340 |
}
|
|
341 |
|
|
342 |
/*
|
|
343 |
* Type sa
|
|
344 |
*/
|
|
345 |
static inline void tcg_out_opc_sa(TCGContext *s, int opc, int rd, int rt, int sa)
|
|
346 |
{
|
|
347 |
int32_t inst;
|
|
348 |
|
|
349 |
inst = opc;
|
|
350 |
inst |= (rt & 0x1F) << 16;
|
|
351 |
inst |= (rd & 0x1F) << 11;
|
|
352 |
inst |= (sa & 0x1F) << 6;
|
|
353 |
tcg_out32(s, inst);
|
|
354 |
|
|
355 |
}
|
|
356 |
|
|
357 |
static inline void tcg_out_nop(TCGContext *s)
|
|
358 |
{
|
|
359 |
tcg_out32(s, 0);
|
|
360 |
}
|
|
361 |
|
|
362 |
static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
|
|
363 |
{
|
|
364 |
tcg_out_opc_reg(s, OPC_ADDU, ret, arg, TCG_REG_ZERO);
|
|
365 |
}
|
|
366 |
|
|
367 |
static inline void tcg_out_movi(TCGContext *s, TCGType type,
|
|
368 |
int reg, int32_t arg)
|
|
369 |
{
|
|
370 |
if (arg == (int16_t)arg) {
|
|
371 |
tcg_out_opc_imm(s, OPC_ADDIU, reg, TCG_REG_ZERO, arg);
|
|
372 |
} else if (arg == (uint16_t)arg) {
|
|
373 |
tcg_out_opc_imm(s, OPC_ORI, reg, TCG_REG_ZERO, arg);
|
|
374 |
} else {
|
|
375 |
tcg_out_opc_imm(s, OPC_LUI, reg, 0, arg >> 16);
|
|
376 |
tcg_out_opc_imm(s, OPC_ORI, reg, reg, arg & 0xffff);
|
|
377 |
}
|
|
378 |
}
|
|
379 |
|
|
380 |
static inline void tcg_out_bswap16(TCGContext *s, int ret, int arg)
|
|
381 |
{
|
|
382 |
/* ret and arg can't be register at */
|
|
383 |
if (ret == TCG_REG_AT || arg == TCG_REG_AT) {
|
|
384 |
tcg_abort();
|
|
385 |
}
|
|
386 |
|
|
387 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 8);
|
|
388 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, TCG_REG_AT, 0x00ff);
|
|
389 |
|
|
390 |
tcg_out_opc_sa(s, OPC_SLL, ret, arg, 8);
|
|
391 |
tcg_out_opc_imm(s, OPC_ANDI, ret, ret, 0xff00);
|
|
392 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT);
|
|
393 |
}
|
|
394 |
|
|
395 |
static inline void tcg_out_bswap16s(TCGContext *s, int ret, int arg)
|
|
396 |
{
|
|
397 |
/* ret and arg can't be register at */
|
|
398 |
if (ret == TCG_REG_AT || arg == TCG_REG_AT) {
|
|
399 |
tcg_abort();
|
|
400 |
}
|
|
401 |
|
|
402 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 8);
|
|
403 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, TCG_REG_AT, 0xff);
|
|
404 |
|
|
405 |
tcg_out_opc_sa(s, OPC_SLL, ret, arg, 24);
|
|
406 |
tcg_out_opc_sa(s, OPC_SRA, ret, ret, 16);
|
|
407 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT);
|
|
408 |
}
|
|
409 |
|
|
410 |
static inline void tcg_out_bswap32(TCGContext *s, int ret, int arg)
|
|
411 |
{
|
|
412 |
/* ret and arg must be different and can't be register at */
|
|
413 |
if (ret == arg || ret == TCG_REG_AT || arg == TCG_REG_AT) {
|
|
414 |
tcg_abort();
|
|
415 |
}
|
|
416 |
|
|
417 |
tcg_out_opc_sa(s, OPC_SLL, ret, arg, 24);
|
|
418 |
|
|
419 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 24);
|
|
420 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT);
|
|
421 |
|
|
422 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, arg, 0xff00);
|
|
423 |
tcg_out_opc_sa(s, OPC_SLL, TCG_REG_AT, TCG_REG_AT, 8);
|
|
424 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT);
|
|
425 |
|
|
426 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 8);
|
|
427 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, TCG_REG_AT, 0xff00);
|
|
428 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT);
|
|
429 |
}
|
|
430 |
|
|
431 |
static inline void tcg_out_ldst(TCGContext *s, int opc, int arg,
|
|
432 |
int arg1, tcg_target_long arg2)
|
|
433 |
{
|
|
434 |
if (arg2 == (int16_t) arg2) {
|
|
435 |
tcg_out_opc_imm(s, opc, arg, arg1, arg2);
|
|
436 |
} else {
|
|
437 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_AT, arg2);
|
|
438 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_AT, TCG_REG_AT, arg1);
|
|
439 |
tcg_out_opc_imm(s, opc, arg, TCG_REG_AT, 0);
|
|
440 |
}
|
|
441 |
}
|
|
442 |
|
|
443 |
static inline void tcg_out_ld(TCGContext *s, TCGType type, int arg,
|
|
444 |
int arg1, tcg_target_long arg2)
|
|
445 |
{
|
|
446 |
tcg_out_ldst(s, OPC_LW, arg, arg1, arg2);
|
|
447 |
}
|
|
448 |
|
|
449 |
static inline void tcg_out_st(TCGContext *s, TCGType type, int arg,
|
|
450 |
int arg1, tcg_target_long arg2)
|
|
451 |
{
|
|
452 |
tcg_out_ldst(s, OPC_SW, arg, arg1, arg2);
|
|
453 |
}
|
|
454 |
|
|
455 |
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
|
|
456 |
{
|
|
457 |
if (val == (int16_t)val) {
|
|
458 |
tcg_out_opc_imm(s, OPC_ADDIU, reg, reg, val);
|
|
459 |
} else {
|
|
460 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_AT, val);
|
|
461 |
tcg_out_opc_reg(s, OPC_ADDU, reg, reg, TCG_REG_AT);
|
|
462 |
}
|
|
463 |
}
|
|
464 |
|
|
465 |
static void tcg_out_brcond(TCGContext *s, int cond, int arg1,
|
|
466 |
int arg2, int label_index)
|
|
467 |
{
|
|
468 |
TCGLabel *l = &s->labels[label_index];
|
|
469 |
|
|
470 |
switch (cond) {
|
|
471 |
case TCG_COND_EQ:
|
|
472 |
tcg_out_opc_imm(s, OPC_BEQ, arg1, arg2, 0);
|
|
473 |
break;
|
|
474 |
case TCG_COND_NE:
|
|
475 |
tcg_out_opc_imm(s, OPC_BNE, arg1, arg2, 0);
|
|
476 |
break;
|
|
477 |
case TCG_COND_LT:
|
|
478 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg1, arg2);
|
|
479 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
480 |
break;
|
|
481 |
case TCG_COND_LTU:
|
|
482 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg1, arg2);
|
|
483 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
484 |
break;
|
|
485 |
case TCG_COND_GE:
|
|
486 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg1, arg2);
|
|
487 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
488 |
break;
|
|
489 |
case TCG_COND_GEU:
|
|
490 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg1, arg2);
|
|
491 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
492 |
break;
|
|
493 |
case TCG_COND_LE:
|
|
494 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg2, arg1);
|
|
495 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
496 |
break;
|
|
497 |
case TCG_COND_LEU:
|
|
498 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg2, arg1);
|
|
499 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
500 |
break;
|
|
501 |
case TCG_COND_GT:
|
|
502 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg2, arg1);
|
|
503 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
504 |
break;
|
|
505 |
case TCG_COND_GTU:
|
|
506 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg2, arg1);
|
|
507 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
|
508 |
break;
|
|
509 |
default:
|
|
510 |
tcg_abort();
|
|
511 |
break;
|
|
512 |
}
|
|
513 |
if (l->has_value) {
|
|
514 |
reloc_pc16(s->code_ptr - 4, l->u.value);
|
|
515 |
} else {
|
|
516 |
tcg_out_reloc(s, s->code_ptr - 4, R_MIPS_PC16, label_index, 0);
|
|
517 |
}
|
|
518 |
tcg_out_nop(s);
|
|
519 |
}
|
|
520 |
|
|
521 |
/* XXX: we implement it at the target level to avoid having to
|
|
522 |
handle cross basic blocks temporaries */
|
|
523 |
static void tcg_out_brcond2(TCGContext *s, int cond, int arg1,
|
|
524 |
int arg2, int arg3, int arg4, int label_index)
|
|
525 |
{
|
|
526 |
void *label_ptr;
|
|
527 |
|
|
528 |
switch(cond) {
|
|
529 |
case TCG_COND_NE:
|
|
530 |
tcg_out_brcond(s, TCG_COND_NE, arg2, arg4, label_index);
|
|
531 |
tcg_out_brcond(s, TCG_COND_NE, arg1, arg3, label_index);
|
|
532 |
return;
|
|
533 |
case TCG_COND_EQ:
|
|
534 |
break;
|
|
535 |
case TCG_COND_LT:
|
|
536 |
case TCG_COND_LE:
|
|
537 |
tcg_out_brcond(s, TCG_COND_LT, arg2, arg4, label_index);
|
|
538 |
break;
|
|
539 |
case TCG_COND_GT:
|
|
540 |
case TCG_COND_GE:
|
|
541 |
tcg_out_brcond(s, TCG_COND_GT, arg2, arg4, label_index);
|
|
542 |
break;
|
|
543 |
case TCG_COND_LTU:
|
|
544 |
case TCG_COND_LEU:
|
|
545 |
tcg_out_brcond(s, TCG_COND_LTU, arg2, arg4, label_index);
|
|
546 |
break;
|
|
547 |
case TCG_COND_GTU:
|
|
548 |
case TCG_COND_GEU:
|
|
549 |
tcg_out_brcond(s, TCG_COND_GTU, arg2, arg4, label_index);
|
|
550 |
break;
|
|
551 |
default:
|
|
552 |
tcg_abort();
|
|
553 |
}
|
|
554 |
|
|
555 |
label_ptr = s->code_ptr;
|
|
556 |
tcg_out_opc_imm(s, OPC_BNE, arg2, arg4, 0);
|
|
557 |
tcg_out_nop(s);
|
|
558 |
|
|
559 |
switch(cond) {
|
|
560 |
case TCG_COND_EQ:
|
|
561 |
tcg_out_brcond(s, TCG_COND_EQ, arg1, arg3, label_index);
|
|
562 |
break;
|
|
563 |
case TCG_COND_LT:
|
|
564 |
case TCG_COND_LTU:
|
|
565 |
tcg_out_brcond(s, TCG_COND_LTU, arg1, arg3, label_index);
|
|
566 |
break;
|
|
567 |
case TCG_COND_LE:
|
|
568 |
case TCG_COND_LEU:
|
|
569 |
tcg_out_brcond(s, TCG_COND_LEU, arg1, arg3, label_index);
|
|
570 |
break;
|
|
571 |
case TCG_COND_GT:
|
|
572 |
case TCG_COND_GTU:
|
|
573 |
tcg_out_brcond(s, TCG_COND_GTU, arg1, arg3, label_index);
|
|
574 |
break;
|
|
575 |
case TCG_COND_GE:
|
|
576 |
case TCG_COND_GEU:
|
|
577 |
tcg_out_brcond(s, TCG_COND_GEU, arg1, arg3, label_index);
|
|
578 |
break;
|
|
579 |
default:
|
|
580 |
tcg_abort();
|
|
581 |
}
|
|
582 |
|
|
583 |
reloc_pc16(label_ptr, (tcg_target_long) s->code_ptr);
|
|
584 |
}
|
|
585 |
|
|
586 |
#if defined(CONFIG_SOFTMMU)
|
|
587 |
|
|
588 |
#include "../../softmmu_defs.h"
|
|
589 |
|
|
590 |
static void *qemu_ld_helpers[4] = {
|
|
591 |
__ldb_mmu,
|
|
592 |
__ldw_mmu,
|
|
593 |
__ldl_mmu,
|
|
594 |
__ldq_mmu,
|
|
595 |
};
|
|
596 |
|
|
597 |
static void *qemu_st_helpers[4] = {
|
|
598 |
__stb_mmu,
|
|
599 |
__stw_mmu,
|
|
600 |
__stl_mmu,
|
|
601 |
__stq_mmu,
|
|
602 |
};
|
|
603 |
#endif
|
|
604 |
|
|
605 |
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
|
|
606 |
int opc)
|
|
607 |
{
|
|
608 |
int addr_regl, addr_reg1, addr_meml;
|
|
609 |
int data_regl, data_regh, data_reg1, data_reg2;
|
|
610 |
int mem_index, s_bits;
|
|
611 |
#if defined(CONFIG_SOFTMMU)
|
|
612 |
void *label1_ptr, *label2_ptr;
|
|
613 |
int sp_args;
|
|
614 |
#endif
|
|
615 |
#if TARGET_LONG_BITS == 64
|
|
616 |
# if defined(CONFIG_SOFTMMU)
|
|
617 |
uint8_t *label3_ptr;
|
|
618 |
# endif
|
|
619 |
int addr_regh, addr_reg2, addr_memh;
|
|
620 |
#endif
|
|
621 |
data_regl = *args++;
|
|
622 |
if (opc == 3)
|
|
623 |
data_regh = *args++;
|
|
624 |
else
|
|
625 |
data_regh = 0;
|
|
626 |
addr_regl = *args++;
|
|
627 |
#if TARGET_LONG_BITS == 64
|
|
628 |
addr_regh = *args++;
|
|
629 |
#endif
|
|
630 |
mem_index = *args;
|
|
631 |
s_bits = opc & 3;
|
|
632 |
|
|
633 |
if (opc == 3) {
|
|
634 |
#if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
|
635 |
data_reg1 = data_regh;
|
|
636 |
data_reg2 = data_regl;
|
|
637 |
#else
|
|
638 |
data_reg1 = data_regl;
|
|
639 |
data_reg2 = data_regh;
|
|
640 |
#endif
|
|
641 |
} else {
|
|
642 |
data_reg1 = data_regl;
|
|
643 |
data_reg2 = 0;
|
|
644 |
}
|
|
645 |
#if TARGET_LONG_BITS == 64
|
|
646 |
# if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
|
647 |
addr_reg1 = addr_regh;
|
|
648 |
addr_reg2 = addr_regl;
|
|
649 |
addr_memh = 0;
|
|
650 |
addr_meml = 4;
|
|
651 |
# else
|
|
652 |
addr_reg1 = addr_regl;
|
|
653 |
addr_reg2 = addr_regh;
|
|
654 |
addr_memh = 4;
|
|
655 |
addr_meml = 0;
|
|
656 |
# endif
|
|
657 |
#else
|
|
658 |
addr_reg1 = addr_regl;
|
|
659 |
addr_meml = 0;
|
|
660 |
#endif
|
|
661 |
|
|
662 |
#if defined(CONFIG_SOFTMMU)
|
|
663 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_A0, addr_regl, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
|
|
664 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_A0, TCG_REG_A0, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
|
665 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_A0, TCG_REG_A0, TCG_AREG0);
|
|
666 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0,
|
|
667 |
offsetof(CPUState, tlb_table[mem_index][0].addr_read) + addr_meml);
|
|
668 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T0, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
|
|
669 |
tcg_out_opc_reg(s, OPC_AND, TCG_REG_T0, TCG_REG_T0, addr_regl);
|
|
670 |
|
|
671 |
# if TARGET_LONG_BITS == 64
|
|
672 |
label3_ptr = s->code_ptr;
|
|
673 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_T0, TCG_REG_AT, 0);
|
|
674 |
tcg_out_nop(s);
|
|
675 |
|
|
676 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0,
|
|
677 |
offsetof(CPUState, tlb_table[mem_index][0].addr_read) + addr_memh);
|
|
678 |
|
|
679 |
label1_ptr = s->code_ptr;
|
|
680 |
tcg_out_opc_imm(s, OPC_BEQ, addr_regh, TCG_REG_AT, 0);
|
|
681 |
tcg_out_nop(s);
|
|
682 |
|
|
683 |
reloc_pc16(label3_ptr, (tcg_target_long) s->code_ptr);
|
|
684 |
# else
|
|
685 |
label1_ptr = s->code_ptr;
|
|
686 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_T0, TCG_REG_AT, 0);
|
|
687 |
tcg_out_nop(s);
|
|
688 |
# endif
|
|
689 |
|
|
690 |
/* slow path */
|
|
691 |
sp_args = TCG_REG_A0;
|
|
692 |
tcg_out_mov(s, sp_args++, addr_reg1);
|
|
693 |
# if TARGET_LONG_BITS == 64
|
|
694 |
tcg_out_mov(s, sp_args++, addr_reg2);
|
|
695 |
# endif
|
|
696 |
tcg_out_movi(s, TCG_TYPE_I32, sp_args++, mem_index);
|
|
697 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T9, (tcg_target_long)qemu_ld_helpers[s_bits]);
|
|
698 |
tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, TCG_REG_T9, 0);
|
|
699 |
tcg_out_nop(s);
|
|
700 |
|
|
701 |
switch(opc) {
|
|
702 |
case 0:
|
|
703 |
tcg_out_opc_imm(s, OPC_ANDI, data_reg1, TCG_REG_V0, 0xff);
|
|
704 |
break;
|
|
705 |
case 0 | 4:
|
|
706 |
tcg_out_opc_sa(s, OPC_SLL, TCG_REG_V0, TCG_REG_V0, 24);
|
|
707 |
tcg_out_opc_sa(s, OPC_SRA, data_reg1, TCG_REG_V0, 24);
|
|
708 |
break;
|
|
709 |
case 1:
|
|
710 |
tcg_out_opc_imm(s, OPC_ANDI, data_reg1, TCG_REG_V0, 0xffff);
|
|
711 |
break;
|
|
712 |
case 1 | 4:
|
|
713 |
tcg_out_opc_sa(s, OPC_SLL, TCG_REG_V0, TCG_REG_V0, 16);
|
|
714 |
tcg_out_opc_sa(s, OPC_SRA, data_reg1, TCG_REG_V0, 16);
|
|
715 |
break;
|
|
716 |
case 2:
|
|
717 |
tcg_out_mov(s, data_reg1, TCG_REG_V0);
|
|
718 |
break;
|
|
719 |
case 3:
|
|
720 |
tcg_out_mov(s, data_reg2, TCG_REG_V1);
|
|
721 |
tcg_out_mov(s, data_reg1, TCG_REG_V0);
|
|
722 |
break;
|
|
723 |
default:
|
|
724 |
tcg_abort();
|
|
725 |
}
|
|
726 |
|
|
727 |
label2_ptr = s->code_ptr;
|
|
728 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_ZERO, TCG_REG_ZERO, 0);
|
|
729 |
tcg_out_nop(s);
|
|
730 |
|
|
731 |
/* label1: fast path */
|
|
732 |
reloc_pc16(label1_ptr, (tcg_target_long) s->code_ptr);
|
|
733 |
|
|
734 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_V0, TCG_REG_A0,
|
|
735 |
offsetof(CPUState, tlb_table[mem_index][0].addend) + addr_meml);
|
|
736 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_V0, TCG_REG_V0, addr_regl);
|
|
737 |
|
|
738 |
addr_reg1 = TCG_REG_V0;
|
|
739 |
#endif
|
|
740 |
|
|
741 |
switch(opc) {
|
|
742 |
case 0:
|
|
743 |
tcg_out_opc_imm(s, OPC_LBU, data_reg1, addr_reg1, 0);
|
|
744 |
break;
|
|
745 |
case 0 | 4:
|
|
746 |
tcg_out_opc_imm(s, OPC_LB, data_reg1, addr_reg1, 0);
|
|
747 |
break;
|
|
748 |
case 1:
|
|
749 |
if (TCG_NEED_BSWAP) {
|
|
750 |
tcg_out_opc_imm(s, OPC_LHU, TCG_REG_T0, addr_reg1, 0);
|
|
751 |
tcg_out_bswap16(s, data_reg1, TCG_REG_T0);
|
|
752 |
} else {
|
|
753 |
tcg_out_opc_imm(s, OPC_LHU, data_reg1, addr_reg1, 0);
|
|
754 |
}
|
|
755 |
break;
|
|
756 |
case 1 | 4:
|
|
757 |
if (TCG_NEED_BSWAP) {
|
|
758 |
tcg_out_opc_imm(s, OPC_LHU, TCG_REG_T0, addr_reg1, 0);
|
|
759 |
tcg_out_bswap16s(s, data_reg1, TCG_REG_T0);
|
|
760 |
} else {
|
|
761 |
tcg_out_opc_imm(s, OPC_LH, data_reg1, addr_reg1, 0);
|
|
762 |
}
|
|
763 |
break;
|
|
764 |
case 2:
|
|
765 |
if (TCG_NEED_BSWAP) {
|
|
766 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_T0, addr_reg1, 0);
|
|
767 |
tcg_out_bswap32(s, data_reg1, TCG_REG_T0);
|
|
768 |
} else {
|
|
769 |
tcg_out_opc_imm(s, OPC_LW, data_reg1, addr_reg1, 0);
|
|
770 |
}
|
|
771 |
break;
|
|
772 |
case 3:
|
|
773 |
#if !defined(CONFIG_SOFTMMU)
|
|
774 |
tcg_out_mov(s, TCG_REG_V0, addr_reg1);
|
|
775 |
addr_reg1 = TCG_REG_V0;
|
|
776 |
#endif
|
|
777 |
if (TCG_NEED_BSWAP) {
|
|
778 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_T0, addr_reg1, 4);
|
|
779 |
tcg_out_bswap32(s, data_reg1, TCG_REG_T0);
|
|
780 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_T0, addr_reg1, 0);
|
|
781 |
tcg_out_bswap32(s, data_reg2, TCG_REG_T0);
|
|
782 |
} else {
|
|
783 |
tcg_out_opc_imm(s, OPC_LW, data_reg1, addr_reg1, 0);
|
|
784 |
tcg_out_opc_imm(s, OPC_LW, data_reg2, addr_reg1, 4);
|
|
785 |
}
|
|
786 |
break;
|
|
787 |
default:
|
|
788 |
tcg_abort();
|
|
789 |
}
|
|
790 |
|
|
791 |
#if defined(CONFIG_SOFTMMU)
|
|
792 |
reloc_pc16(label2_ptr, (tcg_target_long) s->code_ptr);
|
|
793 |
#endif
|
|
794 |
}
|
|
795 |
|
|
796 |
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
|
|
797 |
int opc)
|
|
798 |
{
|
|
799 |
int addr_regl, addr_reg1, addr_meml;
|
|
800 |
int data_regl, data_regh, data_reg1, data_reg2;
|
|
801 |
int mem_index, s_bits;
|
|
802 |
#if defined(CONFIG_SOFTMMU)
|
|
803 |
uint8_t *label1_ptr, *label2_ptr;
|
|
804 |
int sp_args;
|
|
805 |
#endif
|
|
806 |
#if TARGET_LONG_BITS == 64
|
|
807 |
# if defined(CONFIG_SOFTMMU)
|
|
808 |
uint8_t *label3_ptr;
|
|
809 |
# endif
|
|
810 |
int addr_regh, addr_reg2, addr_memh;
|
|
811 |
#endif
|
|
812 |
|
|
813 |
data_regl = *args++;
|
|
814 |
if (opc == 3) {
|
|
815 |
data_regh = *args++;
|
|
816 |
#if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
|
817 |
data_reg1 = data_regh;
|
|
818 |
data_reg2 = data_regl;
|
|
819 |
#else
|
|
820 |
data_reg1 = data_regl;
|
|
821 |
data_reg2 = data_regh;
|
|
822 |
#endif
|
|
823 |
} else {
|
|
824 |
data_reg1 = data_regl;
|
|
825 |
data_reg2 = 0;
|
|
826 |
data_regh = 0;
|
|
827 |
}
|
|
828 |
addr_regl = *args++;
|
|
829 |
#if TARGET_LONG_BITS == 64
|
|
830 |
addr_regh = *args++;
|
|
831 |
# if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
|
832 |
addr_reg1 = addr_regh;
|
|
833 |
addr_reg2 = addr_regl;
|
|
834 |
addr_memh = 0;
|
|
835 |
addr_meml = 4;
|
|
836 |
# else
|
|
837 |
addr_reg1 = addr_regl;
|
|
838 |
addr_reg2 = addr_regh;
|
|
839 |
addr_memh = 4;
|
|
840 |
addr_meml = 0;
|
|
841 |
# endif
|
|
842 |
#else
|
|
843 |
addr_reg1 = addr_regl;
|
|
844 |
addr_meml = 0;
|
|
845 |
#endif
|
|
846 |
mem_index = *args;
|
|
847 |
s_bits = opc;
|
|
848 |
|
|
849 |
#if defined(CONFIG_SOFTMMU)
|
|
850 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_A0, addr_regl, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
|
|
851 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_A0, TCG_REG_A0, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
|
852 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_A0, TCG_REG_A0, TCG_AREG0);
|
|
853 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0,
|
|
854 |
offsetof(CPUState, tlb_table[mem_index][0].addr_write) + addr_meml);
|
|
855 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T0, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
|
|
856 |
tcg_out_opc_reg(s, OPC_AND, TCG_REG_T0, TCG_REG_T0, addr_regl);
|
|
857 |
|
|
858 |
# if TARGET_LONG_BITS == 64
|
|
859 |
label3_ptr = s->code_ptr;
|
|
860 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_T0, TCG_REG_AT, 0);
|
|
861 |
tcg_out_nop(s);
|
|
862 |
|
|
863 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0,
|
|
864 |
offsetof(CPUState, tlb_table[mem_index][0].addr_write) + addr_memh);
|
|
865 |
|
|
866 |
label1_ptr = s->code_ptr;
|
|
867 |
tcg_out_opc_imm(s, OPC_BEQ, addr_regh, TCG_REG_AT, 0);
|
|
868 |
tcg_out_nop(s);
|
|
869 |
|
|
870 |
reloc_pc16(label3_ptr, (tcg_target_long) s->code_ptr);
|
|
871 |
# else
|
|
872 |
label1_ptr = s->code_ptr;
|
|
873 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_T0, TCG_REG_AT, 0);
|
|
874 |
tcg_out_nop(s);
|
|
875 |
# endif
|
|
876 |
|
|
877 |
/* slow path */
|
|
878 |
sp_args = TCG_REG_A0;
|
|
879 |
tcg_out_mov(s, sp_args++, addr_reg1);
|
|
880 |
# if TARGET_LONG_BITS == 64
|
|
881 |
tcg_out_mov(s, sp_args++, addr_reg2);
|
|
882 |
# endif
|
|
883 |
switch(opc) {
|
|
884 |
case 0:
|
|
885 |
tcg_out_opc_imm(s, OPC_ANDI, sp_args++, data_reg1, 0xff);
|
|
886 |
break;
|
|
887 |
case 1:
|
|
888 |
tcg_out_opc_imm(s, OPC_ANDI, sp_args++, data_reg1, 0xffff);
|
|
889 |
break;
|
|
890 |
case 2:
|
|
891 |
tcg_out_mov(s, sp_args++, data_reg1);
|
|
892 |
break;
|
|
893 |
case 3:
|
|
894 |
sp_args = (sp_args + 1) & ~1;
|
|
895 |
tcg_out_mov(s, sp_args++, data_reg1);
|
|
896 |
tcg_out_mov(s, sp_args++, data_reg2);
|
|
897 |
break;
|
|
898 |
default:
|
|
899 |
tcg_abort();
|
|
900 |
}
|
|
901 |
if (sp_args > TCG_REG_A3) {
|
|
902 |
/* Push mem_index on the stack */
|
|
903 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_AT, mem_index);
|
|
904 |
tcg_out_st(s, TCG_TYPE_I32, TCG_REG_AT, TCG_REG_SP, 16);
|
|
905 |
} else {
|
|
906 |
tcg_out_movi(s, TCG_TYPE_I32, sp_args, mem_index);
|
|
907 |
}
|
|
908 |
|
|
909 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T9, (tcg_target_long)qemu_st_helpers[s_bits]);
|
|
910 |
tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, TCG_REG_T9, 0);
|
|
911 |
tcg_out_nop(s);
|
|
912 |
|
|
913 |
label2_ptr = s->code_ptr;
|
|
914 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_ZERO, TCG_REG_ZERO, 0);
|
|
915 |
tcg_out_nop(s);
|
|
916 |
|
|
917 |
/* label1: fast path */
|
|
918 |
reloc_pc16(label1_ptr, (tcg_target_long) s->code_ptr);
|
|
919 |
|
|
920 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_A0, TCG_REG_A0,
|
|
921 |
offsetof(CPUState, tlb_table[mem_index][0].addend) + addr_meml);
|
|
922 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_A0, TCG_REG_A0, addr_regl);
|
|
923 |
|
|
924 |
addr_reg1 = TCG_REG_A0;
|
|
925 |
#endif
|
|
926 |
|
|
927 |
switch(opc) {
|
|
928 |
case 0:
|
|
929 |
tcg_out_opc_imm(s, OPC_SB, data_reg1, addr_reg1, 0);
|
|
930 |
break;
|
|
931 |
case 1:
|
|
932 |
if (TCG_NEED_BSWAP) {
|
|
933 |
tcg_out_bswap16(s, TCG_REG_T0, data_reg1);
|
|
934 |
tcg_out_opc_imm(s, OPC_SH, TCG_REG_T0, addr_reg1, 0);
|
|
935 |
} else {
|
|
936 |
tcg_out_opc_imm(s, OPC_SH, data_reg1, addr_reg1, 0);
|
|
937 |
}
|
|
938 |
break;
|
|
939 |
case 2:
|
|
940 |
if (TCG_NEED_BSWAP) {
|
|
941 |
tcg_out_bswap32(s, TCG_REG_T0, data_reg1);
|
|
942 |
tcg_out_opc_imm(s, OPC_SW, TCG_REG_T0, addr_reg1, 0);
|
|
943 |
} else {
|
|
944 |
tcg_out_opc_imm(s, OPC_SW, data_reg1, addr_reg1, 0);
|
|
945 |
}
|
|
946 |
break;
|
|
947 |
case 3:
|
|
948 |
if (TCG_NEED_BSWAP) {
|
|
949 |
tcg_out_bswap32(s, TCG_REG_T0, data_reg2);
|
|
950 |
tcg_out_opc_imm(s, OPC_SW, TCG_REG_T0, addr_reg1, 0);
|
|
951 |
tcg_out_bswap32(s, TCG_REG_T0, data_reg1);
|
|
952 |
tcg_out_opc_imm(s, OPC_SW, TCG_REG_T0, addr_reg1, 4);
|
|
953 |
} else {
|
|
954 |
tcg_out_opc_imm(s, OPC_SW, data_reg1, addr_reg1, 0);
|
|
955 |
tcg_out_opc_imm(s, OPC_SW, data_reg2, addr_reg1, 4);
|
|
956 |
}
|
|
957 |
break;
|
|
958 |
default:
|
|
959 |
tcg_abort();
|
|
960 |
}
|
|
961 |
|
|
962 |
#if defined(CONFIG_SOFTMMU)
|
|
963 |
reloc_pc16(label2_ptr, (tcg_target_long) s->code_ptr);
|
|
964 |
#endif
|
|
965 |
}
|
|
966 |
|
|
967 |
static inline void tcg_out_op(TCGContext *s, int opc,
|
|
968 |
const TCGArg *args, const int *const_args)
|
|
969 |
{
|
|
970 |
switch(opc) {
|
|
971 |
case INDEX_op_exit_tb:
|
|
972 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_V0, args[0]);
|
|
973 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_AT, (tcg_target_long)tb_ret_addr);
|
|
974 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_AT, 0);
|
|
975 |
tcg_out_nop(s);
|
|
976 |
break;
|
|
977 |
case INDEX_op_goto_tb:
|
|
978 |
if (s->tb_jmp_offset) {
|
|
979 |
/* direct jump method */
|
|
980 |
tcg_abort();
|
|
981 |
} else {
|
|
982 |
/* indirect jump method */
|
|
983 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_AT, (tcg_target_long)(s->tb_next + args[0]));
|
|
984 |
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_AT, TCG_REG_AT, 0);
|
|
985 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_AT, 0);
|
|
986 |
}
|
|
987 |
tcg_out_nop(s);
|
|
988 |
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
989 |
break;
|
|
990 |
case INDEX_op_call:
|
|
991 |
tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, args[0], 0);
|
|
992 |
tcg_out_nop(s);
|
|
993 |
break;
|
|
994 |
case INDEX_op_jmp:
|
|
995 |
tcg_out_opc_reg(s, OPC_JR, 0, args[0], 0);
|
|
996 |
tcg_out_nop(s);
|
|
997 |
break;
|
|
998 |
case INDEX_op_br:
|
|
999 |
tcg_out_brcond(s, TCG_COND_EQ, TCG_REG_ZERO, TCG_REG_ZERO, args[0]);
|
|
1000 |
break;
|
|
1001 |
|
|
1002 |
case INDEX_op_mov_i32:
|
|
1003 |
tcg_out_mov(s, args[0], args[1]);
|
|
1004 |
break;
|
|
1005 |
case INDEX_op_movi_i32:
|
|
1006 |
tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]);
|
|
1007 |
break;
|
|
1008 |
|
|
1009 |
case INDEX_op_ld8u_i32:
|
|
1010 |
tcg_out_ldst(s, OPC_LBU, args[0], args[1], args[2]);
|
|
1011 |
break;
|
|
1012 |
case INDEX_op_ld8s_i32:
|
|
1013 |
tcg_out_ldst(s, OPC_LB, args[0], args[1], args[2]);
|
|
1014 |
break;
|
|
1015 |
case INDEX_op_ld16u_i32:
|
|
1016 |
tcg_out_ldst(s, OPC_LHU, args[0], args[1], args[2]);
|
|
1017 |
break;
|
|
1018 |
case INDEX_op_ld16s_i32:
|
|
1019 |
tcg_out_ldst(s, OPC_LH, args[0], args[1], args[2]);
|
|
1020 |
break;
|
|
1021 |
case INDEX_op_ld_i32:
|
|
1022 |
tcg_out_ldst(s, OPC_LW, args[0], args[1], args[2]);
|
|
1023 |
break;
|
|
1024 |
case INDEX_op_st8_i32:
|
|
1025 |
tcg_out_ldst(s, OPC_SB, args[0], args[1], args[2]);
|
|
1026 |
break;
|
|
1027 |
case INDEX_op_st16_i32:
|
|
1028 |
tcg_out_ldst(s, OPC_SH, args[0], args[1], args[2]);
|
|
1029 |
break;
|
|
1030 |
case INDEX_op_st_i32:
|
|
1031 |
tcg_out_ldst(s, OPC_SW, args[0], args[1], args[2]);
|
|
1032 |
break;
|
|
1033 |
|
|
1034 |
case INDEX_op_add_i32:
|
|
1035 |
if (const_args[2]) {
|
|
1036 |
tcg_out_opc_imm(s, OPC_ADDIU, args[0], args[1], args[2]);
|
|
1037 |
} else {
|
|
1038 |
tcg_out_opc_reg(s, OPC_ADDU, args[0], args[1], args[2]);
|
|
1039 |
}
|
|
1040 |
break;
|
|
1041 |
case INDEX_op_add2_i32:
|
|
1042 |
if (const_args[4]) {
|
|
1043 |
tcg_out_opc_imm(s, OPC_ADDIU, TCG_REG_AT, args[2], args[4]);
|
|
1044 |
} else {
|
|
1045 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_AT, args[2], args[4]);
|
|
1046 |
}
|
|
1047 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_T0, TCG_REG_AT, args[2]);
|
|
1048 |
if (const_args[5]) {
|
|
1049 |
tcg_out_opc_imm(s, OPC_ADDIU, args[1], args[3], args[5]);
|
|
1050 |
} else {
|
|
1051 |
tcg_out_opc_reg(s, OPC_ADDU, args[1], args[3], args[5]);
|
|
1052 |
}
|
|
1053 |
tcg_out_opc_reg(s, OPC_ADDU, args[1], args[1], TCG_REG_T0);
|
|
1054 |
tcg_out_mov(s, args[0], TCG_REG_AT);
|
|
1055 |
break;
|
|
1056 |
case INDEX_op_sub_i32:
|
|
1057 |
if (const_args[2]) {
|
|
1058 |
tcg_out_opc_imm(s, OPC_ADDIU, args[0], args[1], -args[2]);
|
|
1059 |
} else {
|
|
1060 |
tcg_out_opc_reg(s, OPC_SUBU, args[0], args[1], args[2]);
|
|
1061 |
}
|
|
1062 |
break;
|
|
1063 |
case INDEX_op_sub2_i32:
|
|
1064 |
if (const_args[4]) {
|
|
1065 |
tcg_out_opc_imm(s, OPC_ADDIU, TCG_REG_AT, args[2], -args[4]);
|
|
1066 |
} else {
|
|
1067 |
tcg_out_opc_reg(s, OPC_SUBU, TCG_REG_AT, args[2], args[4]);
|
|
1068 |
}
|
|
1069 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_T0, args[2], TCG_REG_AT);
|
|
1070 |
if (const_args[5]) {
|
|
1071 |
tcg_out_opc_imm(s, OPC_ADDIU, args[1], args[3], -args[5]);
|
|
1072 |
} else {
|
|
1073 |
tcg_out_opc_reg(s, OPC_SUBU, args[1], args[3], args[5]);
|
|
1074 |
}
|
|
1075 |
tcg_out_opc_reg(s, OPC_SUBU, args[1], args[1], TCG_REG_T0);
|
|
1076 |
tcg_out_mov(s, args[0], TCG_REG_AT);
|
|
1077 |
break;
|
|
1078 |
case INDEX_op_mul_i32:
|
|
1079 |
tcg_out_opc_reg(s, OPC_MULT, 0, args[1], args[2]);
|
|
1080 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0);
|
|
1081 |
break;
|
|
1082 |
case INDEX_op_mulu2_i32:
|
|
1083 |
tcg_out_opc_reg(s, OPC_MULTU, 0, args[2], args[3]);
|
|
1084 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0);
|
|
1085 |
tcg_out_opc_reg(s, OPC_MFHI, args[1], 0, 0);
|
|
1086 |
break;
|
|
1087 |
case INDEX_op_div_i32:
|
|
1088 |
tcg_out_opc_reg(s, OPC_DIV, 0, args[1], args[2]);
|
|
1089 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0);
|
|
1090 |
break;
|
|
1091 |
case INDEX_op_divu_i32:
|
|
1092 |
tcg_out_opc_reg(s, OPC_DIVU, 0, args[1], args[2]);
|
|
1093 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0);
|
|
1094 |
break;
|
|
1095 |
case INDEX_op_rem_i32:
|
|
1096 |
tcg_out_opc_reg(s, OPC_DIV, 0, args[1], args[2]);
|
|
1097 |
tcg_out_opc_reg(s, OPC_MFHI, args[0], 0, 0);
|
|
1098 |
break;
|
|
1099 |
case INDEX_op_remu_i32:
|
|
1100 |
tcg_out_opc_reg(s, OPC_DIVU, 0, args[1], args[2]);
|
|
1101 |
tcg_out_opc_reg(s, OPC_MFHI, args[0], 0, 0);
|
|
1102 |
break;
|
|
1103 |
|
|
1104 |
case INDEX_op_and_i32:
|
|
1105 |
if (const_args[2]) {
|
|
1106 |
tcg_out_opc_imm(s, OPC_ANDI, args[0], args[1], args[2]);
|
|
1107 |
} else {
|
|
1108 |
tcg_out_opc_reg(s, OPC_AND, args[0], args[1], args[2]);
|
|
1109 |
}
|
|
1110 |
break;
|
|
1111 |
case INDEX_op_or_i32:
|
|
1112 |
if (const_args[2]) {
|
|
1113 |
tcg_out_opc_imm(s, OPC_ORI, args[0], args[1], args[2]);
|
|
1114 |
} else {
|
|
1115 |
tcg_out_opc_reg(s, OPC_OR, args[0], args[1], args[2]);
|
|
1116 |
}
|
|
1117 |
break;
|
|
1118 |
case INDEX_op_not_i32:
|
|
1119 |
tcg_out_opc_reg(s, OPC_NOR, args[0], args[1], args[1]);
|
|
1120 |
break;
|
|
1121 |
case INDEX_op_xor_i32:
|
|
1122 |
if (const_args[2]) {
|
|
1123 |
tcg_out_opc_imm(s, OPC_XORI, args[0], args[1], args[2]);
|
|
1124 |
} else {
|
|
1125 |
tcg_out_opc_reg(s, OPC_XOR, args[0], args[1], args[2]);
|
|
1126 |
}
|
|
1127 |
break;
|
|
1128 |
|
|
1129 |
case INDEX_op_sar_i32:
|
|
1130 |
if (const_args[2]) {
|
|
1131 |
tcg_out_opc_sa(s, OPC_SRA, args[0], args[1], args[2]);
|
|
1132 |
} else {
|
|
1133 |
tcg_out_opc_reg(s, OPC_SRAV, args[0], args[2], args[1]);
|
|
1134 |
}
|
|
1135 |
break;
|
|
1136 |
case INDEX_op_shl_i32:
|
|
1137 |
if (const_args[2]) {
|
|
1138 |
tcg_out_opc_sa(s, OPC_SLL, args[0], args[1], args[2]);
|
|
1139 |
} else {
|
|
1140 |
tcg_out_opc_reg(s, OPC_SLLV, args[0], args[2], args[1]);
|
|
1141 |
}
|
|
1142 |
break;
|
|
1143 |
case INDEX_op_shr_i32:
|
|
1144 |
if (const_args[2]) {
|
|
1145 |
tcg_out_opc_sa(s, OPC_SRL, args[0], args[1], args[2]);
|
|
1146 |
} else {
|
|
1147 |
tcg_out_opc_reg(s, OPC_SRLV, args[0], args[2], args[1]);
|
|
1148 |
}
|
|
1149 |
break;
|
|
1150 |
|
|
1151 |
case INDEX_op_brcond_i32:
|
|
1152 |
tcg_out_brcond(s, args[2], args[0], args[1], args[3]);
|
|
1153 |
break;
|
|
1154 |
case INDEX_op_brcond2_i32:
|
|
1155 |
tcg_out_brcond2(s, args[4], args[0], args[1], args[2], args[3], args[5]);
|
|
1156 |
break;
|
|
1157 |
|
|
1158 |
case INDEX_op_qemu_ld8u:
|
|
1159 |
tcg_out_qemu_ld(s, args, 0);
|
|
1160 |
break;
|
|
1161 |
case INDEX_op_qemu_ld8s:
|
|
1162 |
tcg_out_qemu_ld(s, args, 0 | 4);
|
|
1163 |
break;
|
|
1164 |
case INDEX_op_qemu_ld16u:
|
|
1165 |
tcg_out_qemu_ld(s, args, 1);
|
|
1166 |
break;
|
|
1167 |
case INDEX_op_qemu_ld16s:
|
|
1168 |
tcg_out_qemu_ld(s, args, 1 | 4);
|
|
1169 |
break;
|
|
1170 |
case INDEX_op_qemu_ld32u:
|
|
1171 |
tcg_out_qemu_ld(s, args, 2);
|
|
1172 |
break;
|
|
1173 |
case INDEX_op_qemu_ld64:
|
|
1174 |
tcg_out_qemu_ld(s, args, 3);
|
|
1175 |
break;
|
|
1176 |
case INDEX_op_qemu_st8:
|
|
1177 |
tcg_out_qemu_st(s, args, 0);
|
|
1178 |
break;
|
|
1179 |
case INDEX_op_qemu_st16:
|
|
1180 |
tcg_out_qemu_st(s, args, 1);
|
|
1181 |
break;
|
|
1182 |
case INDEX_op_qemu_st32:
|
|
1183 |
tcg_out_qemu_st(s, args, 2);
|
|
1184 |
break;
|
|
1185 |
case INDEX_op_qemu_st64:
|
|
1186 |
tcg_out_qemu_st(s, args, 3);
|
|
1187 |
break;
|
|
1188 |
|
|
1189 |
default:
|
|
1190 |
tcg_abort();
|
|
1191 |
}
|
|
1192 |
}
|
|
1193 |
|
|
1194 |
static const TCGTargetOpDef mips_op_defs[] = {
|
|
1195 |
{ INDEX_op_exit_tb, { } },
|
|
1196 |
{ INDEX_op_goto_tb, { } },
|
|
1197 |
{ INDEX_op_call, { "C" } },
|
|
1198 |
{ INDEX_op_jmp, { "r" } },
|
|
1199 |
{ INDEX_op_br, { } },
|
|
1200 |
|
|
1201 |
{ INDEX_op_mov_i32, { "r", "r" } },
|
|
1202 |
{ INDEX_op_movi_i32, { "r" } },
|
|
1203 |
{ INDEX_op_ld8u_i32, { "r", "r" } },
|
|
1204 |
{ INDEX_op_ld8s_i32, { "r", "r" } },
|
|
1205 |
{ INDEX_op_ld16u_i32, { "r", "r" } },
|
|
1206 |
{ INDEX_op_ld16s_i32, { "r", "r" } },
|
|
1207 |
{ INDEX_op_ld_i32, { "r", "r" } },
|
|
1208 |
{ INDEX_op_st8_i32, { "rZ", "r" } },
|
|
1209 |
{ INDEX_op_st16_i32, { "rZ", "r" } },
|
|
1210 |
{ INDEX_op_st_i32, { "rZ", "r" } },
|
|
1211 |
|
|
1212 |
{ INDEX_op_add_i32, { "r", "rZ", "rJZ" } },
|
|
1213 |
{ INDEX_op_mul_i32, { "r", "rZ", "rZ" } },
|
|
1214 |
{ INDEX_op_mulu2_i32, { "r", "r", "rZ", "rZ" } },
|
|
1215 |
{ INDEX_op_div_i32, { "r", "rZ", "rZ" } },
|
|
1216 |
{ INDEX_op_divu_i32, { "r", "rZ", "rZ" } },
|
|
1217 |
{ INDEX_op_rem_i32, { "r", "rZ", "rZ" } },
|
|
1218 |
{ INDEX_op_remu_i32, { "r", "rZ", "rZ" } },
|
|
1219 |
{ INDEX_op_sub_i32, { "r", "rZ", "rJZ" } },
|
|
1220 |
|
|
1221 |
{ INDEX_op_and_i32, { "r", "rZ", "rIZ" } },
|
|
1222 |
{ INDEX_op_not_i32, { "r", "rZ" } },
|
|
1223 |
{ INDEX_op_or_i32, { "r", "rZ", "rIZ" } },
|
|
1224 |
{ INDEX_op_xor_i32, { "r", "rZ", "rIZ" } },
|
|
1225 |
|
|
1226 |
{ INDEX_op_shl_i32, { "r", "rZ", "riZ" } },
|
|
1227 |
{ INDEX_op_shr_i32, { "r", "rZ", "riZ" } },
|
|
1228 |
{ INDEX_op_sar_i32, { "r", "rZ", "riZ" } },
|
|
1229 |
|
|
1230 |
{ INDEX_op_brcond_i32, { "rZ", "rZ" } },
|
|
1231 |
|
|
1232 |
{ INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rJZ", "rJZ" } },
|
|
1233 |
{ INDEX_op_sub2_i32, { "r", "r", "rZ", "rZ", "rJZ", "rJZ" } },
|
|
1234 |
{ INDEX_op_brcond2_i32, { "rZ", "rZ", "rZ", "rZ" } },
|
|
1235 |
|
|
1236 |
#if TARGET_LONG_BITS == 32
|
|
1237 |
{ INDEX_op_qemu_ld8u, { "L", "lZ" } },
|
|
1238 |
{ INDEX_op_qemu_ld8s, { "L", "lZ" } },
|
|
1239 |
{ INDEX_op_qemu_ld16u, { "L", "lZ" } },
|
|
1240 |
{ INDEX_op_qemu_ld16s, { "L", "lZ" } },
|
|
1241 |
{ INDEX_op_qemu_ld32u, { "L", "lZ" } },
|
|
1242 |
{ INDEX_op_qemu_ld64, { "L", "L", "lZ" } },
|
|
1243 |
|
|
1244 |
{ INDEX_op_qemu_st8, { "SZ", "SZ" } },
|
|
1245 |
{ INDEX_op_qemu_st16, { "SZ", "SZ" } },
|
|
1246 |
{ INDEX_op_qemu_st32, { "SZ", "SZ" } },
|
|
1247 |
{ INDEX_op_qemu_st64, { "SZ", "SZ", "SZ" } },
|
|
1248 |
#else
|
|
1249 |
{ INDEX_op_qemu_ld8u, { "L", "lZ", "lZ" } },
|
|
1250 |
{ INDEX_op_qemu_ld8s, { "L", "lZ", "lZ" } },
|
|
1251 |
{ INDEX_op_qemu_ld16u, { "L", "lZ", "lZ" } },
|
|
1252 |
{ INDEX_op_qemu_ld16s, { "L", "lZ", "lZ" } },
|
|
1253 |
{ INDEX_op_qemu_ld32u, { "L", "lZ", "lZ" } },
|
|
1254 |
{ INDEX_op_qemu_ld64, { "L", "L", "lZ", "lZ" } },
|
|
1255 |
|
|
1256 |
{ INDEX_op_qemu_st8, { "SZ", "SZ", "SZ" } },
|
|
1257 |
{ INDEX_op_qemu_st16, { "SZ", "SZ", "SZ" } },
|
|
1258 |
{ INDEX_op_qemu_st32, { "SZ", "SZ", "SZ" } },
|
|
1259 |
{ INDEX_op_qemu_st64, { "SZ", "SZ", "SZ", "SZ" } },
|
|
1260 |
#endif
|
|
1261 |
{ -1 },
|
|
1262 |
};
|
|
1263 |
|
|
1264 |
static int tcg_target_callee_save_regs[] = {
|
|
1265 |
TCG_REG_S0,
|
|
1266 |
TCG_REG_S1,
|
|
1267 |
TCG_REG_S2,
|
|
1268 |
TCG_REG_S3,
|
|
1269 |
TCG_REG_S4,
|
|
1270 |
TCG_REG_S5,
|
|
1271 |
TCG_REG_S6,
|
|
1272 |
TCG_REG_S7,
|
|
1273 |
TCG_REG_GP,
|
|
1274 |
/* TCG_REG_FP, */ /* currently used for the global env, so np
|
|
1275 |
need to save */
|
|
1276 |
TCG_REG_RA, /* should be last for ABI compliance */
|
|
1277 |
};
|
|
1278 |
|
|
1279 |
/* Generate global QEMU prologue and epilogue code */
|
|
1280 |
void tcg_target_qemu_prologue(TCGContext *s)
|
|
1281 |
{
|
|
1282 |
int i, frame_size;
|
|
1283 |
|
|
1284 |
/* reserve some stack space */
|
|
1285 |
frame_size = ARRAY_SIZE(tcg_target_callee_save_regs) * 4
|
|
1286 |
+ TCG_STATIC_CALL_ARGS_SIZE;
|
|
1287 |
frame_size = (frame_size + TCG_TARGET_STACK_ALIGN - 1) &
|
|
1288 |
~(TCG_TARGET_STACK_ALIGN - 1);
|
|
1289 |
|
|
1290 |
/* TB prologue */
|
|
1291 |
tcg_out_addi(s, TCG_REG_SP, -frame_size);
|
|
1292 |
for(i = 0 ; i < ARRAY_SIZE(tcg_target_callee_save_regs) ; i++) {
|
|
1293 |
tcg_out_st(s, TCG_TYPE_I32, tcg_target_callee_save_regs[i],
|
|
1294 |
TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE + i * 4);
|
|
1295 |
}
|
|
1296 |
|
|
1297 |
/* Call generated code */
|
|
1298 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_A0, 0);
|
|
1299 |
tcg_out_nop(s);
|
|
1300 |
tb_ret_addr = s->code_ptr;
|
|
1301 |
|
|
1302 |
/* TB epilogue */
|
|
1303 |
for(i = 0 ; i < ARRAY_SIZE(tcg_target_callee_save_regs) ; i++) {
|
|
1304 |
tcg_out_ld(s, TCG_TYPE_I32, tcg_target_callee_save_regs[i],
|
|
1305 |
TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE + i * 4);
|
|
1306 |
}
|
|
1307 |
|
|
1308 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_RA, 0);
|
|
1309 |
tcg_out_addi(s, TCG_REG_SP, frame_size);
|
|
1310 |
}
|
|
1311 |
|
|
1312 |
void tcg_target_init(TCGContext *s)
|
|
1313 |
{
|
|
1314 |
tcg_regset_set(tcg_target_available_regs[TCG_TYPE_I32], 0xffffffff);
|
|
1315 |
tcg_regset_set(tcg_target_call_clobber_regs,
|
|
1316 |
(1 << TCG_REG_V0) |
|
|
1317 |
(1 << TCG_REG_V1) |
|
|
1318 |
(1 << TCG_REG_A0) |
|
|
1319 |
(1 << TCG_REG_A1) |
|
|
1320 |
(1 << TCG_REG_A2) |
|
|
1321 |
(1 << TCG_REG_A3) |
|
|
1322 |
(1 << TCG_REG_T1) |
|
|
1323 |
(1 << TCG_REG_T2) |
|
|
1324 |
(1 << TCG_REG_T3) |
|
|
1325 |
(1 << TCG_REG_T4) |
|
|
1326 |
(1 << TCG_REG_T5) |
|
|
1327 |
(1 << TCG_REG_T6) |
|
|
1328 |
(1 << TCG_REG_T7) |
|
|
1329 |
(1 << TCG_REG_T8) |
|
|
1330 |
(1 << TCG_REG_T9));
|
|
1331 |
|
|
1332 |
tcg_regset_clear(s->reserved_regs);
|
|
1333 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_ZERO); /* zero register */
|
|
1334 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_K0); /* kernel use only */
|
|
1335 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_K1); /* kernel use only */
|
|
1336 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_AT); /* internal use */
|
|
1337 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T0); /* internal use */
|
|
1338 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RA); /* return address */
|
|
1339 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP); /* stack pointer */
|
|
1340 |
|
|
1341 |
tcg_add_target_add_op_defs(mips_op_defs);
|
|
1342 |
}
|