root / target-i386 / ops_template.h @ 14ce26e7
History | View | Annotate | Download (13.1 kB)
| 1 |
/*
|
|---|---|
| 2 |
* i386 micro operations (included several times to generate
|
| 3 |
* different operand sizes)
|
| 4 |
*
|
| 5 |
* Copyright (c) 2003 Fabrice Bellard
|
| 6 |
*
|
| 7 |
* This library is free software; you can redistribute it and/or
|
| 8 |
* modify it under the terms of the GNU Lesser General Public
|
| 9 |
* License as published by the Free Software Foundation; either
|
| 10 |
* version 2 of the License, or (at your option) any later version.
|
| 11 |
*
|
| 12 |
* This library is distributed in the hope that it will be useful,
|
| 13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 15 |
* Lesser General Public License for more details.
|
| 16 |
*
|
| 17 |
* You should have received a copy of the GNU Lesser General Public
|
| 18 |
* License along with this library; if not, write to the Free Software
|
| 19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 20 |
*/
|
| 21 |
#define DATA_BITS (1 << (3 + SHIFT)) |
| 22 |
#define SHIFT_MASK (DATA_BITS - 1) |
| 23 |
#define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1)) |
| 24 |
#if DATA_BITS <= 32 |
| 25 |
#define SHIFT1_MASK 0x1f |
| 26 |
#else
|
| 27 |
#define SHIFT1_MASK 0x3f |
| 28 |
#endif
|
| 29 |
|
| 30 |
#if DATA_BITS == 8 |
| 31 |
#define SUFFIX b
|
| 32 |
#define DATA_TYPE uint8_t
|
| 33 |
#define DATA_STYPE int8_t
|
| 34 |
#define DATA_MASK 0xff |
| 35 |
#elif DATA_BITS == 16 |
| 36 |
#define SUFFIX w
|
| 37 |
#define DATA_TYPE uint16_t
|
| 38 |
#define DATA_STYPE int16_t
|
| 39 |
#define DATA_MASK 0xffff |
| 40 |
#elif DATA_BITS == 32 |
| 41 |
#define SUFFIX l
|
| 42 |
#define DATA_TYPE uint32_t
|
| 43 |
#define DATA_STYPE int32_t
|
| 44 |
#define DATA_MASK 0xffffffff |
| 45 |
#elif DATA_BITS == 64 |
| 46 |
#define SUFFIX q
|
| 47 |
#define DATA_TYPE uint64_t
|
| 48 |
#define DATA_STYPE int64_t
|
| 49 |
#define DATA_MASK 0xffffffffffffffff |
| 50 |
#else
|
| 51 |
#error unhandled operand size
|
| 52 |
#endif
|
| 53 |
|
| 54 |
/* dynamic flags computation */
|
| 55 |
|
| 56 |
static int glue(compute_all_add, SUFFIX)(void) |
| 57 |
{
|
| 58 |
int cf, pf, af, zf, sf, of;
|
| 59 |
target_long src1, src2; |
| 60 |
src1 = CC_SRC; |
| 61 |
src2 = CC_DST - CC_SRC; |
| 62 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
| 63 |
pf = parity_table[(uint8_t)CC_DST]; |
| 64 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 65 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 66 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 67 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
| 68 |
return cf | pf | af | zf | sf | of;
|
| 69 |
} |
| 70 |
|
| 71 |
static int glue(compute_c_add, SUFFIX)(void) |
| 72 |
{
|
| 73 |
int cf;
|
| 74 |
target_long src1; |
| 75 |
src1 = CC_SRC; |
| 76 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
| 77 |
return cf;
|
| 78 |
} |
| 79 |
|
| 80 |
static int glue(compute_all_adc, SUFFIX)(void) |
| 81 |
{
|
| 82 |
int cf, pf, af, zf, sf, of;
|
| 83 |
target_long src1, src2; |
| 84 |
src1 = CC_SRC; |
| 85 |
src2 = CC_DST - CC_SRC - 1;
|
| 86 |
cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
| 87 |
pf = parity_table[(uint8_t)CC_DST]; |
| 88 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 89 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 90 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 91 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
| 92 |
return cf | pf | af | zf | sf | of;
|
| 93 |
} |
| 94 |
|
| 95 |
static int glue(compute_c_adc, SUFFIX)(void) |
| 96 |
{
|
| 97 |
int cf;
|
| 98 |
target_long src1; |
| 99 |
src1 = CC_SRC; |
| 100 |
cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
| 101 |
return cf;
|
| 102 |
} |
| 103 |
|
| 104 |
static int glue(compute_all_sub, SUFFIX)(void) |
| 105 |
{
|
| 106 |
int cf, pf, af, zf, sf, of;
|
| 107 |
target_long src1, src2; |
| 108 |
src1 = CC_DST + CC_SRC; |
| 109 |
src2 = CC_SRC; |
| 110 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
| 111 |
pf = parity_table[(uint8_t)CC_DST]; |
| 112 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 113 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 114 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 115 |
of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
|
| 116 |
return cf | pf | af | zf | sf | of;
|
| 117 |
} |
| 118 |
|
| 119 |
static int glue(compute_c_sub, SUFFIX)(void) |
| 120 |
{
|
| 121 |
int cf;
|
| 122 |
target_long src1, src2; |
| 123 |
src1 = CC_DST + CC_SRC; |
| 124 |
src2 = CC_SRC; |
| 125 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
| 126 |
return cf;
|
| 127 |
} |
| 128 |
|
| 129 |
static int glue(compute_all_sbb, SUFFIX)(void) |
| 130 |
{
|
| 131 |
int cf, pf, af, zf, sf, of;
|
| 132 |
target_long src1, src2; |
| 133 |
src1 = CC_DST + CC_SRC + 1;
|
| 134 |
src2 = CC_SRC; |
| 135 |
cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
| 136 |
pf = parity_table[(uint8_t)CC_DST]; |
| 137 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 138 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 139 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 140 |
of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
|
| 141 |
return cf | pf | af | zf | sf | of;
|
| 142 |
} |
| 143 |
|
| 144 |
static int glue(compute_c_sbb, SUFFIX)(void) |
| 145 |
{
|
| 146 |
int cf;
|
| 147 |
target_long src1, src2; |
| 148 |
src1 = CC_DST + CC_SRC + 1;
|
| 149 |
src2 = CC_SRC; |
| 150 |
cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
| 151 |
return cf;
|
| 152 |
} |
| 153 |
|
| 154 |
static int glue(compute_all_logic, SUFFIX)(void) |
| 155 |
{
|
| 156 |
int cf, pf, af, zf, sf, of;
|
| 157 |
cf = 0;
|
| 158 |
pf = parity_table[(uint8_t)CC_DST]; |
| 159 |
af = 0;
|
| 160 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 161 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 162 |
of = 0;
|
| 163 |
return cf | pf | af | zf | sf | of;
|
| 164 |
} |
| 165 |
|
| 166 |
static int glue(compute_c_logic, SUFFIX)(void) |
| 167 |
{
|
| 168 |
return 0; |
| 169 |
} |
| 170 |
|
| 171 |
static int glue(compute_all_inc, SUFFIX)(void) |
| 172 |
{
|
| 173 |
int cf, pf, af, zf, sf, of;
|
| 174 |
target_long src1, src2; |
| 175 |
src1 = CC_DST - 1;
|
| 176 |
src2 = 1;
|
| 177 |
cf = CC_SRC; |
| 178 |
pf = parity_table[(uint8_t)CC_DST]; |
| 179 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 180 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 181 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 182 |
of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;
|
| 183 |
return cf | pf | af | zf | sf | of;
|
| 184 |
} |
| 185 |
|
| 186 |
#if DATA_BITS == 32 |
| 187 |
static int glue(compute_c_inc, SUFFIX)(void) |
| 188 |
{
|
| 189 |
return CC_SRC;
|
| 190 |
} |
| 191 |
#endif
|
| 192 |
|
| 193 |
static int glue(compute_all_dec, SUFFIX)(void) |
| 194 |
{
|
| 195 |
int cf, pf, af, zf, sf, of;
|
| 196 |
target_long src1, src2; |
| 197 |
src1 = CC_DST + 1;
|
| 198 |
src2 = 1;
|
| 199 |
cf = CC_SRC; |
| 200 |
pf = parity_table[(uint8_t)CC_DST]; |
| 201 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 202 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 203 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 204 |
of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11; |
| 205 |
return cf | pf | af | zf | sf | of;
|
| 206 |
} |
| 207 |
|
| 208 |
static int glue(compute_all_shl, SUFFIX)(void) |
| 209 |
{
|
| 210 |
int cf, pf, af, zf, sf, of;
|
| 211 |
cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C;
|
| 212 |
pf = parity_table[(uint8_t)CC_DST]; |
| 213 |
af = 0; /* undefined */ |
| 214 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 215 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 216 |
/* of is defined if shift count == 1 */
|
| 217 |
of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
|
| 218 |
return cf | pf | af | zf | sf | of;
|
| 219 |
} |
| 220 |
|
| 221 |
static int glue(compute_c_shl, SUFFIX)(void) |
| 222 |
{
|
| 223 |
return (CC_SRC >> (DATA_BITS - 1)) & CC_C; |
| 224 |
} |
| 225 |
|
| 226 |
#if DATA_BITS == 32 |
| 227 |
static int glue(compute_c_sar, SUFFIX)(void) |
| 228 |
{
|
| 229 |
return CC_SRC & 1; |
| 230 |
} |
| 231 |
#endif
|
| 232 |
|
| 233 |
static int glue(compute_all_sar, SUFFIX)(void) |
| 234 |
{
|
| 235 |
int cf, pf, af, zf, sf, of;
|
| 236 |
cf = CC_SRC & 1;
|
| 237 |
pf = parity_table[(uint8_t)CC_DST]; |
| 238 |
af = 0; /* undefined */ |
| 239 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 240 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 241 |
/* of is defined if shift count == 1 */
|
| 242 |
of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
|
| 243 |
return cf | pf | af | zf | sf | of;
|
| 244 |
} |
| 245 |
|
| 246 |
#if DATA_BITS == 32 |
| 247 |
static int glue(compute_c_mul, SUFFIX)(void) |
| 248 |
{
|
| 249 |
int cf;
|
| 250 |
cf = (CC_SRC != 0);
|
| 251 |
return cf;
|
| 252 |
} |
| 253 |
#endif
|
| 254 |
|
| 255 |
/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and
|
| 256 |
CF are modified and it is slower to do that. */
|
| 257 |
static int glue(compute_all_mul, SUFFIX)(void) |
| 258 |
{
|
| 259 |
int cf, pf, af, zf, sf, of;
|
| 260 |
cf = (CC_SRC != 0);
|
| 261 |
pf = parity_table[(uint8_t)CC_DST]; |
| 262 |
af = 0; /* undefined */ |
| 263 |
zf = ((DATA_TYPE)CC_DST == 0) << 6; |
| 264 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 265 |
of = cf << 11;
|
| 266 |
return cf | pf | af | zf | sf | of;
|
| 267 |
} |
| 268 |
|
| 269 |
/* various optimized jumps cases */
|
| 270 |
|
| 271 |
void OPPROTO glue(op_jb_sub, SUFFIX)(void) |
| 272 |
{
|
| 273 |
target_long src1, src2; |
| 274 |
src1 = CC_DST + CC_SRC; |
| 275 |
src2 = CC_SRC; |
| 276 |
|
| 277 |
if ((DATA_TYPE)src1 < (DATA_TYPE)src2)
|
| 278 |
GOTO_LABEL_PARAM(1);
|
| 279 |
FORCE_RET(); |
| 280 |
} |
| 281 |
|
| 282 |
void OPPROTO glue(op_jz_sub, SUFFIX)(void) |
| 283 |
{
|
| 284 |
if ((DATA_TYPE)CC_DST == 0) |
| 285 |
GOTO_LABEL_PARAM(1);
|
| 286 |
FORCE_RET(); |
| 287 |
} |
| 288 |
|
| 289 |
void OPPROTO glue(op_jnz_sub, SUFFIX)(void) |
| 290 |
{
|
| 291 |
if ((DATA_TYPE)CC_DST != 0) |
| 292 |
GOTO_LABEL_PARAM(1);
|
| 293 |
FORCE_RET(); |
| 294 |
} |
| 295 |
|
| 296 |
void OPPROTO glue(op_jbe_sub, SUFFIX)(void) |
| 297 |
{
|
| 298 |
target_long src1, src2; |
| 299 |
src1 = CC_DST + CC_SRC; |
| 300 |
src2 = CC_SRC; |
| 301 |
|
| 302 |
if ((DATA_TYPE)src1 <= (DATA_TYPE)src2)
|
| 303 |
GOTO_LABEL_PARAM(1);
|
| 304 |
FORCE_RET(); |
| 305 |
} |
| 306 |
|
| 307 |
void OPPROTO glue(op_js_sub, SUFFIX)(void) |
| 308 |
{
|
| 309 |
if (CC_DST & SIGN_MASK)
|
| 310 |
GOTO_LABEL_PARAM(1);
|
| 311 |
FORCE_RET(); |
| 312 |
} |
| 313 |
|
| 314 |
void OPPROTO glue(op_jl_sub, SUFFIX)(void) |
| 315 |
{
|
| 316 |
target_long src1, src2; |
| 317 |
src1 = CC_DST + CC_SRC; |
| 318 |
src2 = CC_SRC; |
| 319 |
|
| 320 |
if ((DATA_STYPE)src1 < (DATA_STYPE)src2)
|
| 321 |
GOTO_LABEL_PARAM(1);
|
| 322 |
FORCE_RET(); |
| 323 |
} |
| 324 |
|
| 325 |
void OPPROTO glue(op_jle_sub, SUFFIX)(void) |
| 326 |
{
|
| 327 |
target_long src1, src2; |
| 328 |
src1 = CC_DST + CC_SRC; |
| 329 |
src2 = CC_SRC; |
| 330 |
|
| 331 |
if ((DATA_STYPE)src1 <= (DATA_STYPE)src2)
|
| 332 |
GOTO_LABEL_PARAM(1);
|
| 333 |
FORCE_RET(); |
| 334 |
} |
| 335 |
|
| 336 |
/* oldies */
|
| 337 |
|
| 338 |
#if DATA_BITS >= 16 |
| 339 |
|
| 340 |
void OPPROTO glue(op_loopnz, SUFFIX)(void) |
| 341 |
{
|
| 342 |
int eflags;
|
| 343 |
eflags = cc_table[CC_OP].compute_all(); |
| 344 |
if ((DATA_TYPE)ECX != 0 && !(eflags & CC_Z)) |
| 345 |
GOTO_LABEL_PARAM(1);
|
| 346 |
FORCE_RET(); |
| 347 |
} |
| 348 |
|
| 349 |
void OPPROTO glue(op_loopz, SUFFIX)(void) |
| 350 |
{
|
| 351 |
int eflags;
|
| 352 |
eflags = cc_table[CC_OP].compute_all(); |
| 353 |
if ((DATA_TYPE)ECX != 0 && (eflags & CC_Z)) |
| 354 |
GOTO_LABEL_PARAM(1);
|
| 355 |
FORCE_RET(); |
| 356 |
} |
| 357 |
|
| 358 |
void OPPROTO glue(op_jz_ecx, SUFFIX)(void) |
| 359 |
{
|
| 360 |
if ((DATA_TYPE)ECX == 0) |
| 361 |
GOTO_LABEL_PARAM(1);
|
| 362 |
FORCE_RET(); |
| 363 |
} |
| 364 |
|
| 365 |
void OPPROTO glue(op_jnz_ecx, SUFFIX)(void) |
| 366 |
{
|
| 367 |
if ((DATA_TYPE)ECX != 0) |
| 368 |
GOTO_LABEL_PARAM(1);
|
| 369 |
FORCE_RET(); |
| 370 |
} |
| 371 |
|
| 372 |
#endif
|
| 373 |
|
| 374 |
/* various optimized set cases */
|
| 375 |
|
| 376 |
void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void) |
| 377 |
{
|
| 378 |
target_long src1, src2; |
| 379 |
src1 = CC_DST + CC_SRC; |
| 380 |
src2 = CC_SRC; |
| 381 |
|
| 382 |
T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); |
| 383 |
} |
| 384 |
|
| 385 |
void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) |
| 386 |
{
|
| 387 |
T0 = ((DATA_TYPE)CC_DST == 0);
|
| 388 |
} |
| 389 |
|
| 390 |
void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void) |
| 391 |
{
|
| 392 |
target_long src1, src2; |
| 393 |
src1 = CC_DST + CC_SRC; |
| 394 |
src2 = CC_SRC; |
| 395 |
|
| 396 |
T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); |
| 397 |
} |
| 398 |
|
| 399 |
void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) |
| 400 |
{
|
| 401 |
T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; |
| 402 |
} |
| 403 |
|
| 404 |
void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) |
| 405 |
{
|
| 406 |
target_long src1, src2; |
| 407 |
src1 = CC_DST + CC_SRC; |
| 408 |
src2 = CC_SRC; |
| 409 |
|
| 410 |
T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); |
| 411 |
} |
| 412 |
|
| 413 |
void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) |
| 414 |
{
|
| 415 |
target_long src1, src2; |
| 416 |
src1 = CC_DST + CC_SRC; |
| 417 |
src2 = CC_SRC; |
| 418 |
|
| 419 |
T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); |
| 420 |
} |
| 421 |
|
| 422 |
/* shifts */
|
| 423 |
|
| 424 |
void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1)(void) |
| 425 |
{
|
| 426 |
int count;
|
| 427 |
count = T1 & SHIFT1_MASK; |
| 428 |
T0 = T0 << count; |
| 429 |
FORCE_RET(); |
| 430 |
} |
| 431 |
|
| 432 |
void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1)(void) |
| 433 |
{
|
| 434 |
int count;
|
| 435 |
count = T1 & SHIFT1_MASK; |
| 436 |
T0 &= DATA_MASK; |
| 437 |
T0 = T0 >> count; |
| 438 |
FORCE_RET(); |
| 439 |
} |
| 440 |
|
| 441 |
void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1)(void) |
| 442 |
{
|
| 443 |
int count;
|
| 444 |
target_long src; |
| 445 |
|
| 446 |
count = T1 & SHIFT1_MASK; |
| 447 |
src = (DATA_STYPE)T0; |
| 448 |
T0 = src >> count; |
| 449 |
FORCE_RET(); |
| 450 |
} |
| 451 |
|
| 452 |
#undef MEM_WRITE
|
| 453 |
#include "ops_template_mem.h" |
| 454 |
|
| 455 |
#define MEM_WRITE 0 |
| 456 |
#include "ops_template_mem.h" |
| 457 |
|
| 458 |
#if !defined(CONFIG_USER_ONLY)
|
| 459 |
#define MEM_WRITE 1 |
| 460 |
#include "ops_template_mem.h" |
| 461 |
|
| 462 |
#define MEM_WRITE 2 |
| 463 |
#include "ops_template_mem.h" |
| 464 |
#endif
|
| 465 |
|
| 466 |
/* bit operations */
|
| 467 |
#if DATA_BITS >= 16 |
| 468 |
|
| 469 |
void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void) |
| 470 |
{
|
| 471 |
int count;
|
| 472 |
count = T1 & SHIFT_MASK; |
| 473 |
CC_SRC = T0 >> count; |
| 474 |
} |
| 475 |
|
| 476 |
void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void) |
| 477 |
{
|
| 478 |
int count;
|
| 479 |
count = T1 & SHIFT_MASK; |
| 480 |
T1 = T0 >> count; |
| 481 |
T0 |= (((target_long)1) << count);
|
| 482 |
} |
| 483 |
|
| 484 |
void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void) |
| 485 |
{
|
| 486 |
int count;
|
| 487 |
count = T1 & SHIFT_MASK; |
| 488 |
T1 = T0 >> count; |
| 489 |
T0 &= ~(((target_long)1) << count);
|
| 490 |
} |
| 491 |
|
| 492 |
void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void) |
| 493 |
{
|
| 494 |
int count;
|
| 495 |
count = T1 & SHIFT_MASK; |
| 496 |
T1 = T0 >> count; |
| 497 |
T0 ^= (((target_long)1) << count);
|
| 498 |
} |
| 499 |
|
| 500 |
void OPPROTO glue(glue(op_add_bit, SUFFIX), _A0_T1)(void) |
| 501 |
{
|
| 502 |
A0 += ((DATA_STYPE)T1 >> (3 + SHIFT)) << SHIFT;
|
| 503 |
} |
| 504 |
|
| 505 |
void OPPROTO glue(glue(op_bsf, SUFFIX), _T0_cc)(void) |
| 506 |
{
|
| 507 |
int count;
|
| 508 |
target_long res; |
| 509 |
|
| 510 |
res = T0 & DATA_MASK; |
| 511 |
if (res != 0) { |
| 512 |
count = 0;
|
| 513 |
while ((res & 1) == 0) { |
| 514 |
count++; |
| 515 |
res >>= 1;
|
| 516 |
} |
| 517 |
T1 = count; |
| 518 |
CC_DST = 1; /* ZF = 0 */ |
| 519 |
} else {
|
| 520 |
CC_DST = 0; /* ZF = 1 */ |
| 521 |
} |
| 522 |
FORCE_RET(); |
| 523 |
} |
| 524 |
|
| 525 |
void OPPROTO glue(glue(op_bsr, SUFFIX), _T0_cc)(void) |
| 526 |
{
|
| 527 |
int count;
|
| 528 |
target_long res; |
| 529 |
|
| 530 |
res = T0 & DATA_MASK; |
| 531 |
if (res != 0) { |
| 532 |
count = DATA_BITS - 1;
|
| 533 |
while ((res & SIGN_MASK) == 0) { |
| 534 |
count--; |
| 535 |
res <<= 1;
|
| 536 |
} |
| 537 |
T1 = count; |
| 538 |
CC_DST = 1; /* ZF = 0 */ |
| 539 |
} else {
|
| 540 |
CC_DST = 0; /* ZF = 1 */ |
| 541 |
} |
| 542 |
FORCE_RET(); |
| 543 |
} |
| 544 |
|
| 545 |
#endif
|
| 546 |
|
| 547 |
#if DATA_BITS == 32 |
| 548 |
void OPPROTO op_update_bt_cc(void) |
| 549 |
{
|
| 550 |
CC_SRC = T1; |
| 551 |
} |
| 552 |
#endif
|
| 553 |
|
| 554 |
/* string operations */
|
| 555 |
|
| 556 |
void OPPROTO glue(op_movl_T0_Dshift, SUFFIX)(void) |
| 557 |
{
|
| 558 |
T0 = DF << SHIFT; |
| 559 |
} |
| 560 |
|
| 561 |
/* port I/O */
|
| 562 |
#if DATA_BITS <= 32 |
| 563 |
void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
| 564 |
{
|
| 565 |
glue(cpu_out, SUFFIX)(env, T0, T1 & DATA_MASK); |
| 566 |
} |
| 567 |
|
| 568 |
void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) |
| 569 |
{
|
| 570 |
T1 = glue(cpu_in, SUFFIX)(env, T0); |
| 571 |
} |
| 572 |
|
| 573 |
void OPPROTO glue(glue(op_in, SUFFIX), _DX_T0)(void) |
| 574 |
{
|
| 575 |
T0 = glue(cpu_in, SUFFIX)(env, EDX & 0xffff);
|
| 576 |
} |
| 577 |
|
| 578 |
void OPPROTO glue(glue(op_out, SUFFIX), _DX_T0)(void) |
| 579 |
{
|
| 580 |
glue(cpu_out, SUFFIX)(env, EDX & 0xffff, T0);
|
| 581 |
} |
| 582 |
|
| 583 |
void OPPROTO glue(glue(op_check_io, SUFFIX), _T0)(void) |
| 584 |
{
|
| 585 |
glue(glue(check_io, SUFFIX), _T0)(); |
| 586 |
} |
| 587 |
|
| 588 |
void OPPROTO glue(glue(op_check_io, SUFFIX), _DX)(void) |
| 589 |
{
|
| 590 |
glue(glue(check_io, SUFFIX), _DX)(); |
| 591 |
} |
| 592 |
#endif
|
| 593 |
|
| 594 |
#undef DATA_BITS
|
| 595 |
#undef SHIFT_MASK
|
| 596 |
#undef SHIFT1_MASK
|
| 597 |
#undef SIGN_MASK
|
| 598 |
#undef DATA_TYPE
|
| 599 |
#undef DATA_STYPE
|
| 600 |
#undef DATA_MASK
|
| 601 |
#undef SUFFIX
|