root / ops_template.h @ ba1c6e37
History | View | Annotate | Download (13.8 kB)
| 1 |
|
|---|---|
| 2 |
#define DATA_BITS (1 << (3 + SHIFT)) |
| 3 |
#define SHIFT_MASK (DATA_BITS - 1) |
| 4 |
#define SIGN_MASK (1 << (DATA_BITS - 1)) |
| 5 |
|
| 6 |
#if DATA_BITS == 8 |
| 7 |
#define SUFFIX b
|
| 8 |
#define DATA_TYPE uint8_t
|
| 9 |
#define DATA_STYPE int8_t
|
| 10 |
#define DATA_MASK 0xff |
| 11 |
#elif DATA_BITS == 16 |
| 12 |
#define SUFFIX w
|
| 13 |
#define DATA_TYPE uint16_t
|
| 14 |
#define DATA_STYPE int16_t
|
| 15 |
#define DATA_MASK 0xffff |
| 16 |
#elif DATA_BITS == 32 |
| 17 |
#define SUFFIX l
|
| 18 |
#define DATA_TYPE uint32_t
|
| 19 |
#define DATA_STYPE int32_t
|
| 20 |
#define DATA_MASK 0xffffffff |
| 21 |
#else
|
| 22 |
#error unhandled operand size
|
| 23 |
#endif
|
| 24 |
|
| 25 |
/* dynamic flags computation */
|
| 26 |
|
| 27 |
static int glue(compute_all_add, SUFFIX)(void) |
| 28 |
{
|
| 29 |
int cf, pf, af, zf, sf, of;
|
| 30 |
int src1, src2;
|
| 31 |
src1 = CC_SRC; |
| 32 |
src2 = CC_DST - CC_SRC; |
| 33 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
| 34 |
pf = parity_table[(uint8_t)CC_DST]; |
| 35 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 36 |
zf = ((DATA_TYPE)CC_DST != 0) << 6; |
| 37 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 38 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
| 39 |
return cf | pf | af | zf | sf | of;
|
| 40 |
} |
| 41 |
|
| 42 |
static int glue(compute_c_add, SUFFIX)(void) |
| 43 |
{
|
| 44 |
int src1, cf;
|
| 45 |
src1 = CC_SRC; |
| 46 |
cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
| 47 |
return cf;
|
| 48 |
} |
| 49 |
|
| 50 |
static int glue(compute_all_sub, SUFFIX)(void) |
| 51 |
{
|
| 52 |
int cf, pf, af, zf, sf, of;
|
| 53 |
int src1, src2;
|
| 54 |
src1 = CC_SRC; |
| 55 |
src2 = CC_SRC - CC_DST; |
| 56 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
| 57 |
pf = parity_table[(uint8_t)CC_DST]; |
| 58 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 59 |
zf = ((DATA_TYPE)CC_DST != 0) << 6; |
| 60 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 61 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
| 62 |
return cf | pf | af | zf | sf | of;
|
| 63 |
} |
| 64 |
|
| 65 |
static int glue(compute_c_sub, SUFFIX)(void) |
| 66 |
{
|
| 67 |
int src1, src2, cf;
|
| 68 |
src1 = CC_SRC; |
| 69 |
src2 = CC_SRC - CC_DST; |
| 70 |
cf = (DATA_TYPE)src1 < (DATA_TYPE)src1; |
| 71 |
return cf;
|
| 72 |
} |
| 73 |
|
| 74 |
static int glue(compute_all_logic, SUFFIX)(void) |
| 75 |
{
|
| 76 |
int cf, pf, af, zf, sf, of;
|
| 77 |
cf = 0;
|
| 78 |
pf = parity_table[(uint8_t)CC_DST]; |
| 79 |
af = 0;
|
| 80 |
zf = ((DATA_TYPE)CC_DST != 0) << 6; |
| 81 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 82 |
of = 0;
|
| 83 |
return cf | pf | af | zf | sf | of;
|
| 84 |
} |
| 85 |
|
| 86 |
static int glue(compute_c_logic, SUFFIX)(void) |
| 87 |
{
|
| 88 |
return 0; |
| 89 |
} |
| 90 |
|
| 91 |
static int glue(compute_all_inc, SUFFIX)(void) |
| 92 |
{
|
| 93 |
int cf, pf, af, zf, sf, of;
|
| 94 |
int src1, src2;
|
| 95 |
src1 = CC_DST - 1;
|
| 96 |
src2 = 1;
|
| 97 |
cf = CC_SRC; |
| 98 |
pf = parity_table[(uint8_t)CC_DST]; |
| 99 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 100 |
zf = ((DATA_TYPE)CC_DST != 0) << 6; |
| 101 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 102 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
| 103 |
return cf | pf | af | zf | sf | of;
|
| 104 |
} |
| 105 |
|
| 106 |
static int glue(compute_c_inc, SUFFIX)(void) |
| 107 |
{
|
| 108 |
return CC_SRC;
|
| 109 |
} |
| 110 |
|
| 111 |
static int glue(compute_all_dec, SUFFIX)(void) |
| 112 |
{
|
| 113 |
int cf, pf, af, zf, sf, of;
|
| 114 |
int src1, src2;
|
| 115 |
src1 = CC_DST + 1;
|
| 116 |
src2 = 1;
|
| 117 |
cf = CC_SRC; |
| 118 |
pf = parity_table[(uint8_t)CC_DST]; |
| 119 |
af = (CC_DST ^ src1 ^ src2) & 0x10;
|
| 120 |
zf = ((DATA_TYPE)CC_DST != 0) << 6; |
| 121 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 122 |
of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
| 123 |
return cf | pf | af | zf | sf | of;
|
| 124 |
} |
| 125 |
|
| 126 |
static int glue(compute_all_shl, SUFFIX)(void) |
| 127 |
{
|
| 128 |
int cf, pf, af, zf, sf, of;
|
| 129 |
cf = CC_SRC & 1;
|
| 130 |
pf = parity_table[(uint8_t)CC_DST]; |
| 131 |
af = 0; /* undefined */ |
| 132 |
zf = ((DATA_TYPE)CC_DST != 0) << 6; |
| 133 |
sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
| 134 |
of = sf << 4; /* only meaniful for shr with count == 1 */ |
| 135 |
return cf | pf | af | zf | sf | of;
|
| 136 |
} |
| 137 |
|
| 138 |
static int glue(compute_c_shl, SUFFIX)(void) |
| 139 |
{
|
| 140 |
return CC_SRC & 1; |
| 141 |
} |
| 142 |
|
| 143 |
/* various optimized jumps cases */
|
| 144 |
|
| 145 |
void OPPROTO glue(op_jb_sub, SUFFIX)(void) |
| 146 |
{
|
| 147 |
int src1, src2;
|
| 148 |
src1 = CC_SRC; |
| 149 |
src2 = CC_SRC - CC_DST; |
| 150 |
|
| 151 |
if ((DATA_TYPE)src1 < (DATA_TYPE)src2)
|
| 152 |
PC += PARAM1; |
| 153 |
else
|
| 154 |
PC += PARAM2; |
| 155 |
FORCE_RET(); |
| 156 |
} |
| 157 |
|
| 158 |
void OPPROTO glue(op_jz_sub, SUFFIX)(void) |
| 159 |
{
|
| 160 |
if ((DATA_TYPE)CC_DST != 0) |
| 161 |
PC += PARAM1; |
| 162 |
else
|
| 163 |
PC += PARAM2; |
| 164 |
FORCE_RET(); |
| 165 |
} |
| 166 |
|
| 167 |
void OPPROTO glue(op_jbe_sub, SUFFIX)(void) |
| 168 |
{
|
| 169 |
int src1, src2;
|
| 170 |
src1 = CC_SRC; |
| 171 |
src2 = CC_SRC - CC_DST; |
| 172 |
|
| 173 |
if ((DATA_TYPE)src1 <= (DATA_TYPE)src2)
|
| 174 |
PC += PARAM1; |
| 175 |
else
|
| 176 |
PC += PARAM2; |
| 177 |
FORCE_RET(); |
| 178 |
} |
| 179 |
|
| 180 |
void OPPROTO glue(op_js_sub, SUFFIX)(void) |
| 181 |
{
|
| 182 |
if (CC_DST & SIGN_MASK)
|
| 183 |
PC += PARAM1; |
| 184 |
else
|
| 185 |
PC += PARAM2; |
| 186 |
FORCE_RET(); |
| 187 |
} |
| 188 |
|
| 189 |
void OPPROTO glue(op_jl_sub, SUFFIX)(void) |
| 190 |
{
|
| 191 |
int src1, src2;
|
| 192 |
src1 = CC_SRC; |
| 193 |
src2 = CC_SRC - CC_DST; |
| 194 |
|
| 195 |
if ((DATA_STYPE)src1 < (DATA_STYPE)src2)
|
| 196 |
PC += PARAM1; |
| 197 |
else
|
| 198 |
PC += PARAM2; |
| 199 |
FORCE_RET(); |
| 200 |
} |
| 201 |
|
| 202 |
void OPPROTO glue(op_jle_sub, SUFFIX)(void) |
| 203 |
{
|
| 204 |
int src1, src2;
|
| 205 |
src1 = CC_SRC; |
| 206 |
src2 = CC_SRC - CC_DST; |
| 207 |
|
| 208 |
if ((DATA_STYPE)src1 <= (DATA_STYPE)src2)
|
| 209 |
PC += PARAM1; |
| 210 |
else
|
| 211 |
PC += PARAM2; |
| 212 |
FORCE_RET(); |
| 213 |
} |
| 214 |
|
| 215 |
/* various optimized set cases */
|
| 216 |
|
| 217 |
void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void) |
| 218 |
{
|
| 219 |
int src1, src2;
|
| 220 |
src1 = CC_SRC; |
| 221 |
src2 = CC_SRC - CC_DST; |
| 222 |
|
| 223 |
T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); |
| 224 |
} |
| 225 |
|
| 226 |
void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) |
| 227 |
{
|
| 228 |
T0 = ((DATA_TYPE)CC_DST != 0);
|
| 229 |
} |
| 230 |
|
| 231 |
void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void) |
| 232 |
{
|
| 233 |
int src1, src2;
|
| 234 |
src1 = CC_SRC; |
| 235 |
src2 = CC_SRC - CC_DST; |
| 236 |
|
| 237 |
T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); |
| 238 |
} |
| 239 |
|
| 240 |
void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) |
| 241 |
{
|
| 242 |
T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; |
| 243 |
} |
| 244 |
|
| 245 |
void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) |
| 246 |
{
|
| 247 |
int src1, src2;
|
| 248 |
src1 = CC_SRC; |
| 249 |
src2 = CC_SRC - CC_DST; |
| 250 |
|
| 251 |
T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); |
| 252 |
} |
| 253 |
|
| 254 |
void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) |
| 255 |
{
|
| 256 |
int src1, src2;
|
| 257 |
src1 = CC_SRC; |
| 258 |
src2 = CC_SRC - CC_DST; |
| 259 |
|
| 260 |
T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); |
| 261 |
} |
| 262 |
|
| 263 |
/* shifts */
|
| 264 |
|
| 265 |
void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void) |
| 266 |
{
|
| 267 |
int count, src;
|
| 268 |
count = T1 & SHIFT_MASK; |
| 269 |
if (count) {
|
| 270 |
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); |
| 271 |
src = T0; |
| 272 |
T0 &= DATA_MASK; |
| 273 |
T0 = (T0 << count) | (T0 >> (DATA_BITS - count)); |
| 274 |
CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 275 |
(T0 & CC_C); |
| 276 |
CC_OP = CC_OP_EFLAGS; |
| 277 |
} |
| 278 |
} |
| 279 |
|
| 280 |
void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void) |
| 281 |
{
|
| 282 |
int count, src;
|
| 283 |
count = T1 & SHIFT_MASK; |
| 284 |
if (count) {
|
| 285 |
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); |
| 286 |
src = T0; |
| 287 |
T0 &= DATA_MASK; |
| 288 |
T0 = (T0 >> count) | (T0 << (DATA_BITS - count)); |
| 289 |
CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 290 |
((T0 >> (DATA_BITS - 1)) & CC_C);
|
| 291 |
CC_OP = CC_OP_EFLAGS; |
| 292 |
} |
| 293 |
} |
| 294 |
|
| 295 |
void OPPROTO glue(glue(op_rcl, SUFFIX), _T0_T1_cc)(void) |
| 296 |
{
|
| 297 |
int count, res, eflags;
|
| 298 |
unsigned int src; |
| 299 |
|
| 300 |
count = T1 & 0x1f;
|
| 301 |
#if DATA_BITS == 16 |
| 302 |
count = rclw_table[count]; |
| 303 |
#elif DATA_BITS == 8 |
| 304 |
count = rclb_table[count]; |
| 305 |
#endif
|
| 306 |
if (count) {
|
| 307 |
eflags = cc_table[CC_OP].compute_all(); |
| 308 |
src = T0; |
| 309 |
res = (T0 << count) | ((eflags & CC_C) << (count - 1));
|
| 310 |
if (count > 1) |
| 311 |
res |= T0 >> (DATA_BITS + 1 - count);
|
| 312 |
T0 = res; |
| 313 |
CC_SRC = (eflags & ~(CC_C | CC_O)) | |
| 314 |
(lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 315 |
((src >> (DATA_BITS - count)) & CC_C); |
| 316 |
CC_OP = CC_OP_EFLAGS; |
| 317 |
} |
| 318 |
} |
| 319 |
|
| 320 |
void OPPROTO glue(glue(op_rcr, SUFFIX), _T0_T1_cc)(void) |
| 321 |
{
|
| 322 |
int count, res, eflags;
|
| 323 |
unsigned int src; |
| 324 |
|
| 325 |
count = T1 & 0x1f;
|
| 326 |
#if DATA_BITS == 16 |
| 327 |
count = rclw_table[count]; |
| 328 |
#elif DATA_BITS == 8 |
| 329 |
count = rclb_table[count]; |
| 330 |
#endif
|
| 331 |
if (count) {
|
| 332 |
eflags = cc_table[CC_OP].compute_all(); |
| 333 |
src = T0; |
| 334 |
res = (T0 >> count) | ((eflags & CC_C) << (DATA_BITS - count)); |
| 335 |
if (count > 1) |
| 336 |
res |= T0 << (DATA_BITS + 1 - count);
|
| 337 |
T0 = res; |
| 338 |
CC_SRC = (eflags & ~(CC_C | CC_O)) | |
| 339 |
(lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 340 |
((src >> (count - 1)) & CC_C);
|
| 341 |
CC_OP = CC_OP_EFLAGS; |
| 342 |
} |
| 343 |
} |
| 344 |
|
| 345 |
void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1_cc)(void) |
| 346 |
{
|
| 347 |
int count;
|
| 348 |
count = T1 & 0x1f;
|
| 349 |
if (count == 1) { |
| 350 |
CC_SRC = T0; |
| 351 |
T0 = T0 << 1;
|
| 352 |
CC_DST = T0; |
| 353 |
CC_OP = CC_OP_ADDB + SHIFT; |
| 354 |
} else if (count) { |
| 355 |
CC_SRC = T0 >> (DATA_BITS - count); |
| 356 |
T0 = T0 << count; |
| 357 |
CC_DST = T0; |
| 358 |
CC_OP = CC_OP_SHLB + SHIFT; |
| 359 |
} |
| 360 |
} |
| 361 |
|
| 362 |
void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void) |
| 363 |
{
|
| 364 |
int count;
|
| 365 |
count = T1 & 0x1f;
|
| 366 |
if (count) {
|
| 367 |
T0 &= DATA_MASK; |
| 368 |
CC_SRC = T0 >> (count - 1);
|
| 369 |
T0 = T0 >> count; |
| 370 |
CC_DST = T0; |
| 371 |
CC_OP = CC_OP_SHLB + SHIFT; |
| 372 |
} |
| 373 |
} |
| 374 |
|
| 375 |
void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void) |
| 376 |
{
|
| 377 |
int count, src;
|
| 378 |
count = T1 & 0x1f;
|
| 379 |
if (count) {
|
| 380 |
src = (DATA_STYPE)T0; |
| 381 |
CC_SRC = src >> (count - 1);
|
| 382 |
T0 = src >> count; |
| 383 |
CC_DST = T0; |
| 384 |
CC_OP = CC_OP_SHLB + SHIFT; |
| 385 |
} |
| 386 |
} |
| 387 |
|
| 388 |
/* string operations */
|
| 389 |
/* XXX: maybe use lower level instructions to ease exception handling */
|
| 390 |
|
| 391 |
void OPPROTO glue(op_movs, SUFFIX)(void) |
| 392 |
{
|
| 393 |
int v;
|
| 394 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 395 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 396 |
ESI += (DF << SHIFT); |
| 397 |
EDI += (DF << SHIFT); |
| 398 |
} |
| 399 |
|
| 400 |
void OPPROTO glue(op_rep_movs, SUFFIX)(void) |
| 401 |
{
|
| 402 |
int v, inc;
|
| 403 |
inc = (DF << SHIFT); |
| 404 |
while (ECX != 0) { |
| 405 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 406 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 407 |
ESI += inc; |
| 408 |
EDI += inc; |
| 409 |
ECX--; |
| 410 |
} |
| 411 |
} |
| 412 |
|
| 413 |
void OPPROTO glue(op_stos, SUFFIX)(void) |
| 414 |
{
|
| 415 |
glue(st, SUFFIX)((void *)EDI, EAX);
|
| 416 |
EDI += (DF << SHIFT); |
| 417 |
} |
| 418 |
|
| 419 |
void OPPROTO glue(op_rep_stos, SUFFIX)(void) |
| 420 |
{
|
| 421 |
int inc;
|
| 422 |
inc = (DF << SHIFT); |
| 423 |
while (ECX != 0) { |
| 424 |
glue(st, SUFFIX)((void *)EDI, EAX);
|
| 425 |
EDI += inc; |
| 426 |
ECX--; |
| 427 |
} |
| 428 |
} |
| 429 |
|
| 430 |
void OPPROTO glue(op_lods, SUFFIX)(void) |
| 431 |
{
|
| 432 |
int v;
|
| 433 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 434 |
#if SHIFT == 0 |
| 435 |
EAX = (EAX & ~0xff) | v;
|
| 436 |
#elif SHIFT == 1 |
| 437 |
EAX = (EAX & ~0xffff) | v;
|
| 438 |
#else
|
| 439 |
EAX = v; |
| 440 |
#endif
|
| 441 |
ESI += (DF << SHIFT); |
| 442 |
} |
| 443 |
|
| 444 |
/* don't know if it is used */
|
| 445 |
void OPPROTO glue(op_rep_lods, SUFFIX)(void) |
| 446 |
{
|
| 447 |
int v, inc;
|
| 448 |
inc = (DF << SHIFT); |
| 449 |
while (ECX != 0) { |
| 450 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 451 |
#if SHIFT == 0 |
| 452 |
EAX = (EAX & ~0xff) | v;
|
| 453 |
#elif SHIFT == 1 |
| 454 |
EAX = (EAX & ~0xffff) | v;
|
| 455 |
#else
|
| 456 |
EAX = v; |
| 457 |
#endif
|
| 458 |
ESI += inc; |
| 459 |
ECX--; |
| 460 |
} |
| 461 |
} |
| 462 |
|
| 463 |
void OPPROTO glue(op_scas, SUFFIX)(void) |
| 464 |
{
|
| 465 |
int v;
|
| 466 |
|
| 467 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 468 |
ESI += (DF << SHIFT); |
| 469 |
CC_SRC = EAX; |
| 470 |
CC_DST = EAX - v; |
| 471 |
} |
| 472 |
|
| 473 |
void OPPROTO glue(op_repz_scas, SUFFIX)(void) |
| 474 |
{
|
| 475 |
int v1, v2, inc;
|
| 476 |
|
| 477 |
if (ECX != 0) { |
| 478 |
/* NOTE: the flags are not modified if ECX == 0 */
|
| 479 |
#if SHIFT == 0 |
| 480 |
v1 = EAX & 0xff;
|
| 481 |
#elif SHIFT == 1 |
| 482 |
v1 = EAX & 0xffff;
|
| 483 |
#else
|
| 484 |
v1 = EAX; |
| 485 |
#endif
|
| 486 |
inc = (DF << SHIFT); |
| 487 |
do {
|
| 488 |
v2 = glue(ldu, SUFFIX)((void *)ESI);
|
| 489 |
if (v1 != v2)
|
| 490 |
break;
|
| 491 |
ESI += inc; |
| 492 |
ECX--; |
| 493 |
} while (ECX != 0); |
| 494 |
CC_SRC = v1; |
| 495 |
CC_DST = v1 - v2; |
| 496 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 497 |
} |
| 498 |
} |
| 499 |
|
| 500 |
void OPPROTO glue(op_repnz_scas, SUFFIX)(void) |
| 501 |
{
|
| 502 |
int v1, v2, inc;
|
| 503 |
|
| 504 |
if (ECX != 0) { |
| 505 |
/* NOTE: the flags are not modified if ECX == 0 */
|
| 506 |
#if SHIFT == 0 |
| 507 |
v1 = EAX & 0xff;
|
| 508 |
#elif SHIFT == 1 |
| 509 |
v1 = EAX & 0xffff;
|
| 510 |
#else
|
| 511 |
v1 = EAX; |
| 512 |
#endif
|
| 513 |
inc = (DF << SHIFT); |
| 514 |
do {
|
| 515 |
v2 = glue(ldu, SUFFIX)((void *)ESI);
|
| 516 |
if (v1 == v2)
|
| 517 |
break;
|
| 518 |
ESI += inc; |
| 519 |
ECX--; |
| 520 |
} while (ECX != 0); |
| 521 |
CC_SRC = v1; |
| 522 |
CC_DST = v1 - v2; |
| 523 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 524 |
} |
| 525 |
} |
| 526 |
|
| 527 |
void OPPROTO glue(op_cmps, SUFFIX)(void) |
| 528 |
{
|
| 529 |
int v1, v2;
|
| 530 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
| 531 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 532 |
ESI += (DF << SHIFT); |
| 533 |
EDI += (DF << SHIFT); |
| 534 |
CC_SRC = v1; |
| 535 |
CC_DST = v1 - v2; |
| 536 |
} |
| 537 |
|
| 538 |
void OPPROTO glue(op_repz_cmps, SUFFIX)(void) |
| 539 |
{
|
| 540 |
int v1, v2, inc;
|
| 541 |
if (ECX != 0) { |
| 542 |
inc = (DF << SHIFT); |
| 543 |
do {
|
| 544 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
| 545 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 546 |
if (v1 != v2)
|
| 547 |
break;
|
| 548 |
ESI += inc; |
| 549 |
EDI += inc; |
| 550 |
ECX--; |
| 551 |
} while (ECX != 0); |
| 552 |
CC_SRC = v1; |
| 553 |
CC_DST = v1 - v2; |
| 554 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 555 |
} |
| 556 |
} |
| 557 |
|
| 558 |
void OPPROTO glue(op_repnz_cmps, SUFFIX)(void) |
| 559 |
{
|
| 560 |
int v1, v2, inc;
|
| 561 |
if (ECX != 0) { |
| 562 |
inc = (DF << SHIFT); |
| 563 |
do {
|
| 564 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
| 565 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 566 |
if (v1 == v2)
|
| 567 |
break;
|
| 568 |
ESI += inc; |
| 569 |
EDI += inc; |
| 570 |
ECX--; |
| 571 |
} while (ECX != 0); |
| 572 |
CC_SRC = v1; |
| 573 |
CC_DST = v1 - v2; |
| 574 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 575 |
} |
| 576 |
} |
| 577 |
|
| 578 |
/* port I/O */
|
| 579 |
|
| 580 |
void OPPROTO glue(op_outs, SUFFIX)(void) |
| 581 |
{
|
| 582 |
int v, dx;
|
| 583 |
dx = EDX & 0xffff;
|
| 584 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 585 |
glue(cpu_x86_out, SUFFIX)(dx, v); |
| 586 |
ESI += (DF << SHIFT); |
| 587 |
} |
| 588 |
|
| 589 |
void OPPROTO glue(op_rep_outs, SUFFIX)(void) |
| 590 |
{
|
| 591 |
int v, dx, inc;
|
| 592 |
inc = (DF << SHIFT); |
| 593 |
dx = EDX & 0xffff;
|
| 594 |
while (ECX != 0) { |
| 595 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 596 |
glue(cpu_x86_out, SUFFIX)(dx, v); |
| 597 |
ESI += inc; |
| 598 |
ECX--; |
| 599 |
} |
| 600 |
} |
| 601 |
|
| 602 |
void OPPROTO glue(op_ins, SUFFIX)(void) |
| 603 |
{
|
| 604 |
int v, dx;
|
| 605 |
dx = EDX & 0xffff;
|
| 606 |
v = glue(cpu_x86_in, SUFFIX)(dx); |
| 607 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 608 |
EDI += (DF << SHIFT); |
| 609 |
} |
| 610 |
|
| 611 |
void OPPROTO glue(op_rep_ins, SUFFIX)(void) |
| 612 |
{
|
| 613 |
int v, dx, inc;
|
| 614 |
inc = (DF << SHIFT); |
| 615 |
dx = EDX & 0xffff;
|
| 616 |
while (ECX != 0) { |
| 617 |
v = glue(cpu_x86_in, SUFFIX)(dx); |
| 618 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 619 |
EDI += (DF << SHIFT); |
| 620 |
ECX--; |
| 621 |
} |
| 622 |
} |
| 623 |
|
| 624 |
void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
| 625 |
{
|
| 626 |
glue(cpu_x86_out, SUFFIX)(T0 & 0xffff, T1 & DATA_MASK);
|
| 627 |
} |
| 628 |
|
| 629 |
void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) |
| 630 |
{
|
| 631 |
T1 = glue(cpu_x86_in, SUFFIX)(T0 & 0xffff);
|
| 632 |
} |
| 633 |
|
| 634 |
#undef DATA_BITS
|
| 635 |
#undef SHIFT_MASK
|
| 636 |
#undef SIGN_MASK
|
| 637 |
#undef DATA_TYPE
|
| 638 |
#undef DATA_STYPE
|
| 639 |
#undef DATA_MASK
|
| 640 |
#undef SUFFIX
|