root / target-sh4 / op.c @ 6f06939b
History | View | Annotate | Download (7.3 kB)
| 1 |
/*
|
|---|---|
| 2 |
* SH4 emulation
|
| 3 |
*
|
| 4 |
* Copyright (c) 2005 Samuel Tardieu
|
| 5 |
*
|
| 6 |
* This library is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU Lesser General Public
|
| 8 |
* License as published by the Free Software Foundation; either
|
| 9 |
* version 2 of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This library is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 14 |
* Lesser General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU Lesser General Public
|
| 17 |
* License along with this library; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 19 |
*/
|
| 20 |
#include "exec.h" |
| 21 |
|
| 22 |
static inline void set_t(void) |
| 23 |
{
|
| 24 |
env->sr |= SR_T; |
| 25 |
} |
| 26 |
|
| 27 |
static inline void clr_t(void) |
| 28 |
{
|
| 29 |
env->sr &= ~SR_T; |
| 30 |
} |
| 31 |
|
| 32 |
static inline void cond_t(int cond) |
| 33 |
{
|
| 34 |
if (cond)
|
| 35 |
set_t(); |
| 36 |
else
|
| 37 |
clr_t(); |
| 38 |
} |
| 39 |
|
| 40 |
void OPPROTO op_cmp_str_T0_T1(void) |
| 41 |
{
|
| 42 |
cond_t((T0 & 0x000000ff) == (T1 & 0x000000ff) || |
| 43 |
(T0 & 0x0000ff00) == (T1 & 0x0000ff00) || |
| 44 |
(T0 & 0x00ff0000) == (T1 & 0x00ff0000) || |
| 45 |
(T0 & 0xff000000) == (T1 & 0xff000000)); |
| 46 |
RETURN(); |
| 47 |
} |
| 48 |
|
| 49 |
void OPPROTO op_div0s_T0_T1(void) |
| 50 |
{
|
| 51 |
if (T1 & 0x80000000) |
| 52 |
env->sr |= SR_Q; |
| 53 |
else
|
| 54 |
env->sr &= ~SR_Q; |
| 55 |
if (T0 & 0x80000000) |
| 56 |
env->sr |= SR_M; |
| 57 |
else
|
| 58 |
env->sr &= ~SR_M; |
| 59 |
cond_t((T1 ^ T0) & 0x80000000);
|
| 60 |
RETURN(); |
| 61 |
} |
| 62 |
|
| 63 |
void OPPROTO op_div1_T0_T1(void) |
| 64 |
{
|
| 65 |
helper_div1_T0_T1(); |
| 66 |
RETURN(); |
| 67 |
} |
| 68 |
|
| 69 |
void OPPROTO op_shad_T0_T1(void) |
| 70 |
{
|
| 71 |
if ((T0 & 0x80000000) == 0) |
| 72 |
T1 <<= (T0 & 0x1f);
|
| 73 |
else if ((T0 & 0x1f) == 0) |
| 74 |
T1 = (T1 & 0x80000000)? 0xffffffff : 0; |
| 75 |
else
|
| 76 |
T1 = ((int32_t) T1) >> ((~T0 & 0x1f) + 1); |
| 77 |
RETURN(); |
| 78 |
} |
| 79 |
|
| 80 |
void OPPROTO op_shld_T0_T1(void) |
| 81 |
{
|
| 82 |
if ((T0 & 0x80000000) == 0) |
| 83 |
T1 <<= (T0 & 0x1f);
|
| 84 |
else if ((T0 & 0x1f) == 0) |
| 85 |
T1 = 0;
|
| 86 |
else
|
| 87 |
T1 = ((uint32_t) T1) >> ((~T0 & 0x1f) + 1); |
| 88 |
RETURN(); |
| 89 |
} |
| 90 |
|
| 91 |
void OPPROTO op_ldc_T0_sr(void) |
| 92 |
{
|
| 93 |
env->sr = T0 & 0x700083f3;
|
| 94 |
RETURN(); |
| 95 |
} |
| 96 |
|
| 97 |
void OPPROTO op_stc_sr_T0(void) |
| 98 |
{
|
| 99 |
T0 = env->sr; |
| 100 |
RETURN(); |
| 101 |
} |
| 102 |
|
| 103 |
#define LDSTOPS(target,load,store) \
|
| 104 |
void OPPROTO op_##load##_T0_##target (void) \ |
| 105 |
{ env ->target = T0; RETURN(); \
|
| 106 |
} \ |
| 107 |
void OPPROTO op_##store##_##target##_T0 (void) \ |
| 108 |
{ T0 = env->target; RETURN(); \
|
| 109 |
} \ |
| 110 |
|
| 111 |
LDSTOPS(gbr, ldc, stc) |
| 112 |
LDSTOPS(vbr, ldc, stc) |
| 113 |
LDSTOPS(ssr, ldc, stc) |
| 114 |
LDSTOPS(spc, ldc, stc) |
| 115 |
LDSTOPS(sgr, ldc, stc) |
| 116 |
LDSTOPS(dbr, ldc, stc) |
| 117 |
LDSTOPS(mach, lds, sts) |
| 118 |
LDSTOPS(macl, lds, sts) |
| 119 |
LDSTOPS(pr, lds, sts) |
| 120 |
LDSTOPS(fpul, lds, sts) |
| 121 |
|
| 122 |
void OPPROTO op_lds_T0_fpscr(void) |
| 123 |
{
|
| 124 |
env->fpscr = T0 & 0x003fffff;
|
| 125 |
env->fp_status.float_rounding_mode = T0 & 0x01 ?
|
| 126 |
float_round_to_zero : float_round_nearest_even; |
| 127 |
|
| 128 |
RETURN(); |
| 129 |
} |
| 130 |
|
| 131 |
void OPPROTO op_sts_fpscr_T0(void) |
| 132 |
{
|
| 133 |
T0 = env->fpscr & 0x003fffff;
|
| 134 |
RETURN(); |
| 135 |
} |
| 136 |
|
| 137 |
void OPPROTO op_rotcl_Rn(void) |
| 138 |
{
|
| 139 |
helper_rotcl(&env->gregs[PARAM1]); |
| 140 |
RETURN(); |
| 141 |
} |
| 142 |
|
| 143 |
void OPPROTO op_rotcr_Rn(void) |
| 144 |
{
|
| 145 |
helper_rotcr(&env->gregs[PARAM1]); |
| 146 |
RETURN(); |
| 147 |
} |
| 148 |
|
| 149 |
void OPPROTO op_rotl_Rn(void) |
| 150 |
{
|
| 151 |
cond_t(env->gregs[PARAM1] & 0x80000000);
|
| 152 |
env->gregs[PARAM1] = (env->gregs[PARAM1] << 1) | (env->sr & SR_T);
|
| 153 |
RETURN(); |
| 154 |
} |
| 155 |
|
| 156 |
void OPPROTO op_rotr_Rn(void) |
| 157 |
{
|
| 158 |
cond_t(env->gregs[PARAM1] & 1);
|
| 159 |
env->gregs[PARAM1] = (env->gregs[PARAM1] >> 1) |
|
| 160 |
((env->sr & SR_T) ? 0x80000000 : 0); |
| 161 |
RETURN(); |
| 162 |
} |
| 163 |
|
| 164 |
void OPPROTO op_shal_Rn(void) |
| 165 |
{
|
| 166 |
cond_t(env->gregs[PARAM1] & 0x80000000);
|
| 167 |
env->gregs[PARAM1] <<= 1;
|
| 168 |
RETURN(); |
| 169 |
} |
| 170 |
|
| 171 |
void OPPROTO op_shar_Rn(void) |
| 172 |
{
|
| 173 |
cond_t(env->gregs[PARAM1] & 1);
|
| 174 |
*(int32_t *)&env->gregs[PARAM1] >>= 1;
|
| 175 |
RETURN(); |
| 176 |
} |
| 177 |
|
| 178 |
void OPPROTO op_shlr_Rn(void) |
| 179 |
{
|
| 180 |
cond_t(env->gregs[PARAM1] & 1);
|
| 181 |
env->gregs[PARAM1] >>= 1;
|
| 182 |
RETURN(); |
| 183 |
} |
| 184 |
|
| 185 |
void OPPROTO op_fmov_frN_FT0(void) |
| 186 |
{
|
| 187 |
FT0 = env->fregs[PARAM1]; |
| 188 |
RETURN(); |
| 189 |
} |
| 190 |
|
| 191 |
void OPPROTO op_fmov_drN_DT0(void) |
| 192 |
{
|
| 193 |
CPU_DoubleU d; |
| 194 |
|
| 195 |
d.l.upper = *(uint32_t *)&env->fregs[PARAM1]; |
| 196 |
d.l.lower = *(uint32_t *)&env->fregs[PARAM1 + 1];
|
| 197 |
DT0 = d.d; |
| 198 |
RETURN(); |
| 199 |
} |
| 200 |
|
| 201 |
void OPPROTO op_fmov_frN_FT1(void) |
| 202 |
{
|
| 203 |
FT1 = env->fregs[PARAM1]; |
| 204 |
RETURN(); |
| 205 |
} |
| 206 |
|
| 207 |
void OPPROTO op_fmov_drN_DT1(void) |
| 208 |
{
|
| 209 |
CPU_DoubleU d; |
| 210 |
|
| 211 |
d.l.upper = *(uint32_t *)&env->fregs[PARAM1]; |
| 212 |
d.l.lower = *(uint32_t *)&env->fregs[PARAM1 + 1];
|
| 213 |
DT1 = d.d; |
| 214 |
RETURN(); |
| 215 |
} |
| 216 |
|
| 217 |
void OPPROTO op_fmov_FT0_frN(void) |
| 218 |
{
|
| 219 |
env->fregs[PARAM1] = FT0; |
| 220 |
RETURN(); |
| 221 |
} |
| 222 |
|
| 223 |
void OPPROTO op_fmov_DT0_drN(void) |
| 224 |
{
|
| 225 |
CPU_DoubleU d; |
| 226 |
|
| 227 |
d.d = DT0; |
| 228 |
*(uint32_t *)&env->fregs[PARAM1] = d.l.upper; |
| 229 |
*(uint32_t *)&env->fregs[PARAM1 + 1] = d.l.lower;
|
| 230 |
RETURN(); |
| 231 |
} |
| 232 |
|
| 233 |
void OPPROTO op_fadd_FT(void) |
| 234 |
{
|
| 235 |
FT0 = float32_add(FT0, FT1, &env->fp_status); |
| 236 |
RETURN(); |
| 237 |
} |
| 238 |
|
| 239 |
void OPPROTO op_fadd_DT(void) |
| 240 |
{
|
| 241 |
DT0 = float64_add(DT0, DT1, &env->fp_status); |
| 242 |
RETURN(); |
| 243 |
} |
| 244 |
|
| 245 |
void OPPROTO op_fsub_FT(void) |
| 246 |
{
|
| 247 |
FT0 = float32_sub(FT0, FT1, &env->fp_status); |
| 248 |
RETURN(); |
| 249 |
} |
| 250 |
|
| 251 |
void OPPROTO op_fsub_DT(void) |
| 252 |
{
|
| 253 |
DT0 = float64_sub(DT0, DT1, &env->fp_status); |
| 254 |
RETURN(); |
| 255 |
} |
| 256 |
|
| 257 |
void OPPROTO op_fmul_FT(void) |
| 258 |
{
|
| 259 |
FT0 = float32_mul(FT0, FT1, &env->fp_status); |
| 260 |
RETURN(); |
| 261 |
} |
| 262 |
|
| 263 |
void OPPROTO op_fmul_DT(void) |
| 264 |
{
|
| 265 |
DT0 = float64_mul(DT0, DT1, &env->fp_status); |
| 266 |
RETURN(); |
| 267 |
} |
| 268 |
|
| 269 |
void OPPROTO op_fdiv_FT(void) |
| 270 |
{
|
| 271 |
FT0 = float32_div(FT0, FT1, &env->fp_status); |
| 272 |
RETURN(); |
| 273 |
} |
| 274 |
|
| 275 |
void OPPROTO op_fdiv_DT(void) |
| 276 |
{
|
| 277 |
DT0 = float64_div(DT0, DT1, &env->fp_status); |
| 278 |
RETURN(); |
| 279 |
} |
| 280 |
|
| 281 |
void OPPROTO op_fcmp_eq_FT(void) |
| 282 |
{
|
| 283 |
cond_t(float32_compare(FT0, FT1, &env->fp_status) == 0);
|
| 284 |
RETURN(); |
| 285 |
} |
| 286 |
|
| 287 |
void OPPROTO op_fcmp_eq_DT(void) |
| 288 |
{
|
| 289 |
cond_t(float64_compare(DT0, DT1, &env->fp_status) == 0);
|
| 290 |
RETURN(); |
| 291 |
} |
| 292 |
|
| 293 |
void OPPROTO op_fcmp_gt_FT(void) |
| 294 |
{
|
| 295 |
cond_t(float32_compare(FT0, FT1, &env->fp_status) == 1);
|
| 296 |
RETURN(); |
| 297 |
} |
| 298 |
|
| 299 |
void OPPROTO op_fcmp_gt_DT(void) |
| 300 |
{
|
| 301 |
cond_t(float64_compare(DT0, DT1, &env->fp_status) == 1);
|
| 302 |
RETURN(); |
| 303 |
} |
| 304 |
|
| 305 |
void OPPROTO op_float_FT(void) |
| 306 |
{
|
| 307 |
FT0 = int32_to_float32(env->fpul, &env->fp_status); |
| 308 |
RETURN(); |
| 309 |
} |
| 310 |
|
| 311 |
void OPPROTO op_float_DT(void) |
| 312 |
{
|
| 313 |
DT0 = int32_to_float64(env->fpul, &env->fp_status); |
| 314 |
RETURN(); |
| 315 |
} |
| 316 |
|
| 317 |
void OPPROTO op_ftrc_FT(void) |
| 318 |
{
|
| 319 |
env->fpul = float32_to_int32_round_to_zero(FT0, &env->fp_status); |
| 320 |
RETURN(); |
| 321 |
} |
| 322 |
|
| 323 |
void OPPROTO op_ftrc_DT(void) |
| 324 |
{
|
| 325 |
env->fpul = float64_to_int32_round_to_zero(DT0, &env->fp_status); |
| 326 |
RETURN(); |
| 327 |
} |
| 328 |
|
| 329 |
void OPPROTO op_fneg_frN(void) |
| 330 |
{
|
| 331 |
env->fregs[PARAM1] = float32_chs(env->fregs[PARAM1]); |
| 332 |
RETURN(); |
| 333 |
} |
| 334 |
|
| 335 |
void OPPROTO op_fabs_FT(void) |
| 336 |
{
|
| 337 |
FT0 = float32_abs(FT0); |
| 338 |
RETURN(); |
| 339 |
} |
| 340 |
|
| 341 |
void OPPROTO op_fabs_DT(void) |
| 342 |
{
|
| 343 |
DT0 = float64_abs(DT0); |
| 344 |
RETURN(); |
| 345 |
} |
| 346 |
|
| 347 |
void OPPROTO op_fcnvsd_FT_DT(void) |
| 348 |
{
|
| 349 |
DT0 = float32_to_float64(FT0, &env->fp_status); |
| 350 |
RETURN(); |
| 351 |
} |
| 352 |
|
| 353 |
void OPPROTO op_fcnvds_DT_FT(void) |
| 354 |
{
|
| 355 |
FT0 = float64_to_float32(DT0, &env->fp_status); |
| 356 |
RETURN(); |
| 357 |
} |
| 358 |
|
| 359 |
void OPPROTO op_fsqrt_FT(void) |
| 360 |
{
|
| 361 |
FT0 = float32_sqrt(FT0, &env->fp_status); |
| 362 |
RETURN(); |
| 363 |
} |
| 364 |
|
| 365 |
void OPPROTO op_fsqrt_DT(void) |
| 366 |
{
|
| 367 |
DT0 = float64_sqrt(DT0, &env->fp_status); |
| 368 |
RETURN(); |
| 369 |
} |
| 370 |
|
| 371 |
void OPPROTO op_fmov_T0_frN(void) |
| 372 |
{
|
| 373 |
*(uint32_t *)&env->fregs[PARAM1] = T0; |
| 374 |
RETURN(); |
| 375 |
} |
| 376 |
|
| 377 |
void OPPROTO op_movl_fpul_FT0(void) |
| 378 |
{
|
| 379 |
FT0 = *(float32 *)&env->fpul; |
| 380 |
RETURN(); |
| 381 |
} |
| 382 |
|
| 383 |
void OPPROTO op_movl_FT0_fpul(void) |
| 384 |
{
|
| 385 |
*(float32 *)&env->fpul = FT0; |
| 386 |
RETURN(); |
| 387 |
} |
| 388 |
|
| 389 |
/* Load and store */
|
| 390 |
#define MEMSUFFIX _raw
|
| 391 |
#include "op_mem.c" |
| 392 |
#undef MEMSUFFIX
|
| 393 |
#if !defined(CONFIG_USER_ONLY)
|
| 394 |
#define MEMSUFFIX _user
|
| 395 |
#include "op_mem.c" |
| 396 |
#undef MEMSUFFIX
|
| 397 |
|
| 398 |
#define MEMSUFFIX _kernel
|
| 399 |
#include "op_mem.c" |
| 400 |
#undef MEMSUFFIX
|
| 401 |
#endif
|