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Fixed ESP value in CALL far when page fault occurs between selector and PC push. Fixes MS Plus!.

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This commit is contained in:
TomW 2013-06-25 21:46:25 +01:00
commit 1980a2b107
1 changed files with 13 additions and 7 deletions
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20
src/x86_ops_call.h
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@ -13,13 +13,15 @@
oldss = ss; \
if (cgate32) \
{ \
uint32_t old_esp = ESP; \
PUSH_L(old_cs); if (abrt) { cgate16 = cgate32 = 0; return 0; } \
PUSH_L(old_pc); \
PUSH_L(old_pc); if (abrt) ESP = old_esp; \
} \
else \
{ \
uint32_t old_esp = ESP; \
PUSH_W(old_cs); if (abrt) { cgate16 = cgate32 = 0; return 0; } \
PUSH_W(old_pc); \
PUSH_W(old_pc); if (abrt) ESP = old_esp; \
}
#define CALL_FAR_l(new_seg, new_pc) \
@ -37,13 +39,15 @@
oldss = ss; \
if (cgate16) \
{ \
uint32_t old_esp = ESP; \
PUSH_W(old_cs); if (abrt) { cgate16 = cgate32 = 0; return 0; } \
PUSH_W(old_pc); \
PUSH_W(old_pc); if (abrt) ESP = old_esp; \
} \
else \
{ \
uint32_t old_esp = ESP; \
PUSH_L(old_cs); if (abrt) { cgate16 = cgate32 = 0; return 0; } \
PUSH_L(old_pc); \
PUSH_L(old_pc); if (abrt) ESP = old_esp; \
}
@ -58,17 +62,19 @@
if (msw & 1) loadcscall(new_seg); \
else loadcs(new_seg); \
optype = 0; \
if (abrt) { cgate16 = cgate32 = 0; break; } \
if (abrt) { cgate16 = cgate32 = 0; break; } \
oldss = ss; \
if (cgate32) \
{ \
uint32_t old_esp = ESP; \
PUSH_L(old_cs); if (abrt) { cgate16 = cgate32 = 0; break; } \
PUSH_L(old_pc); \
PUSH_L(old_pc); if (abrt) ESP = old_esp; \
} \
else \
{ \
uint32_t old_esp = ESP; \
PUSH_W(old_cs); if (abrt) { cgate16 = cgate32 = 0; break; } \
PUSH_W(old_pc); \
PUSH_W(old_pc); if (abrt) ESP = old_esp; \
} \
static int opCALL_far_w(uint32_t fetchdat)