Revision f631ef9b op-i386.c
| b/op-i386.c | ||
|---|---|---|
| 611 | 611 |
} |
| 612 | 612 |
} |
| 613 | 613 |
|
| 614 |
/* XXX: add IOPL/CPL tests */ |
|
| 615 |
void OPPROTO op_cli(void) |
|
| 616 |
{
|
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| 617 |
raise_exception(EXCP0D_GPF); |
|
| 618 |
} |
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| 619 |
|
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| 620 |
/* XXX: add IOPL/CPL tests */ |
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| 621 |
void OPPROTO op_sti(void) |
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| 622 |
{
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| 623 |
raise_exception(EXCP0D_GPF); |
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| 624 |
} |
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| 625 |
|
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/* vm86plus instructions */ |
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| 627 |
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| 628 |
void OPPROTO op_cli_vm(void) |
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| 629 |
{
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| 630 |
env->eflags &= ~VIF_MASK; |
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| 631 |
} |
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| 632 |
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| 633 |
void OPPROTO op_sti_vm(void) |
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| 634 |
{
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| 635 |
env->eflags |= VIF_MASK; |
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| 636 |
if (env->eflags & VIP_MASK) {
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| 637 |
EIP = PARAM1; |
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| 638 |
raise_exception(EXCP0D_GPF); |
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| 639 |
} |
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| 640 |
FORCE_RET(); |
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} |
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| 642 |
|
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| 614 | 643 |
void OPPROTO op_boundw(void) |
| 615 | 644 |
{
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| 616 | 645 |
int low, high, v; |
| ... | ... | |
| 1234 | 1263 |
CC_OP = PARAM1; |
| 1235 | 1264 |
} |
| 1236 | 1265 |
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| 1237 |
#define FL_UPDATE_MASK (TF_MASK | AC_MASK | ID_MASK) |
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| 1266 |
#define FL_UPDATE_MASK32 (TF_MASK | AC_MASK | ID_MASK) |
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| 1267 |
#define FL_UPDATE_MASK16 (TF_MASK) |
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| 1238 | 1268 |
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| 1239 | 1269 |
void OPPROTO op_movl_eflags_T0(void) |
| 1240 | 1270 |
{
|
| ... | ... | |
| 1243 | 1273 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
| 1244 | 1274 |
DF = 1 - (2 * ((eflags >> 10) & 1)); |
| 1245 | 1275 |
/* we also update some system flags as in user mode */ |
| 1246 |
env->eflags = (env->eflags & ~FL_UPDATE_MASK) | (eflags & FL_UPDATE_MASK); |
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| 1276 |
env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | (eflags & FL_UPDATE_MASK32); |
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| 1277 |
} |
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| 1278 |
|
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| 1279 |
void OPPROTO op_movw_eflags_T0(void) |
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| 1280 |
{
|
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| 1281 |
int eflags; |
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| 1282 |
eflags = T0; |
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| 1283 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
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| 1284 |
DF = 1 - (2 * ((eflags >> 10) & 1)); |
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| 1285 |
/* we also update some system flags as in user mode */ |
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| 1286 |
env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | (eflags & FL_UPDATE_MASK16); |
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| 1287 |
} |
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| 1288 |
|
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| 1289 |
/* vm86 version */ |
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| 1290 |
void OPPROTO op_movw_eflags_T0_vm(void) |
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{
|
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| 1292 |
int eflags; |
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| 1293 |
eflags = T0; |
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| 1294 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
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| 1295 |
DF = 1 - (2 * ((eflags >> 10) & 1)); |
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| 1296 |
/* we also update some system flags as in user mode */ |
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| 1297 |
env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) | |
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(eflags & FL_UPDATE_MASK16); |
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| 1299 |
if (eflags & IF_MASK) {
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env->eflags |= VIF_MASK; |
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if (env->eflags & VIP_MASK) {
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EIP = PARAM1; |
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| 1303 |
raise_exception(EXCP0D_GPF); |
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} |
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| 1305 |
} |
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| 1306 |
FORCE_RET(); |
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| 1307 |
} |
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| 1308 |
|
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| 1309 |
void OPPROTO op_movl_eflags_T0_vm(void) |
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| 1310 |
{
|
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| 1311 |
int eflags; |
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| 1312 |
eflags = T0; |
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| 1313 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
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DF = 1 - (2 * ((eflags >> 10) & 1)); |
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| 1315 |
/* we also update some system flags as in user mode */ |
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env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) | |
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| 1317 |
(eflags & FL_UPDATE_MASK32); |
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| 1318 |
if (eflags & IF_MASK) {
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| 1319 |
env->eflags |= VIF_MASK; |
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| 1320 |
if (env->eflags & VIP_MASK) {
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| 1321 |
EIP = PARAM1; |
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| 1322 |
raise_exception(EXCP0D_GPF); |
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| 1323 |
} |
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| 1324 |
} |
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| 1325 |
FORCE_RET(); |
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| 1247 | 1326 |
} |
| 1248 | 1327 |
|
| 1249 | 1328 |
/* XXX: compute only O flag */ |
| ... | ... | |
| 1263 | 1342 |
T0 = eflags; |
| 1264 | 1343 |
} |
| 1265 | 1344 |
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| 1345 |
/* vm86 version */ |
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| 1346 |
void OPPROTO op_movl_T0_eflags_vm(void) |
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{
|
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| 1348 |
int eflags; |
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| 1349 |
eflags = cc_table[CC_OP].compute_all(); |
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| 1350 |
eflags |= (DF & DF_MASK); |
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| 1351 |
eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK); |
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| 1352 |
if (env->eflags & VIF_MASK) |
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| 1353 |
eflags |= IF_MASK; |
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| 1354 |
T0 = eflags; |
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| 1355 |
} |
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| 1356 |
|
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| 1266 | 1357 |
void OPPROTO op_cld(void) |
| 1267 | 1358 |
{
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| 1268 | 1359 |
DF = 1; |
| ... | ... | |
| 1377 | 1468 |
[CC_OP_SARL] = { compute_all_sarl, compute_c_shll },
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| 1378 | 1469 |
}; |
| 1379 | 1470 |
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| 1380 |
/* floating point support */ |
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| 1471 |
/* floating point support. Some of the code for complicated x87 |
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| 1472 |
functions comes from the LGPL'ed x86 emulator found in the Willows |
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| 1473 |
TWIN windows emulator. */ |
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| 1381 | 1474 |
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| 1382 | 1475 |
#ifdef USE_X86LDOUBLE |
| 1383 | 1476 |
/* use long double functions */ |
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