Skip to content

W
wine-cw
Commit 215a0d6f authored by Jukka Heinonen's avatar Jukka Heinonen Committed by Alexandre Julliard
Browse files
Options

Fix CPU flag handling when internal interrupts are branched to.

parent 6f66c1c7
Show whitespace changes
Inline Side-by-side
Showing with 21 additions and 3 deletions
dlls/winedos/interrupts.c
View file @ 215a0d6f
......@@ -243,9 +243,9 @@ void WINAPI DOSVM_EmulateInterruptPM( CONTEXT86 *context, BYTE intnum )
context->Eax, context->Ebx, context->Ecx, context->Edx );
DPRINTF( " esi=%08lx edi=%08lx ebp=%08lx esp=%08lx \n",
context->Esi, context->Edi, context->Ebp, context->Esp );
DPRINTF( " ds=%04lx es=%04lx fs=%04lx gs=%04lx flags=%08lx\n",
context->SegDs, context->SegEs,
context->SegFs, context->SegGs, context->EFlags );
DPRINTF( " ds=%04lx es=%04lx fs=%04lx gs=%04lx ss=%04lx flags=%08lx\n",
context->SegDs, context->SegEs, context->SegFs, context->SegGs,
context->SegSs, context->EFlags );
}
if (context->SegCs == DOSVM_dpmi_segments->dpmi_sel)
......@@ -263,6 +263,11 @@ void WINAPI DOSVM_EmulateInterruptPM( CONTEXT86 *context, BYTE intnum )
}
else if (context->SegCs == DOSVM_dpmi_segments->int48_sel)
{
/* Restore original flags stored into the stack by the caller. */
DWORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = stack[2];
if (intnum != context->Eip / DOSVM_STUB_PM48)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02lx)\n",
......@@ -279,6 +284,11 @@ void WINAPI DOSVM_EmulateInterruptPM( CONTEXT86 *context, BYTE intnum )
}
else if (context->SegCs == DOSVM_dpmi_segments->int16_sel)
{
/* Restore original flags stored into the stack by the caller. */
WORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = (DWORD)MAKELONG( stack[2], HIWORD(context->EFlags) );
if (intnum != context->Eip / DOSVM_STUB_PM16)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02lx)\n",
......@@ -438,6 +448,11 @@ BOOL WINAPI DOSVM_EmulateInterruptRM( CONTEXT86 *context, BYTE intnum )
/* check if the call is from our fake BIOS interrupt stubs */
if (context->SegCs==0xf000)
{
/* Restore original flags stored into the stack by the caller. */
WORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = (DWORD)MAKELONG( stack[2], HIWORD(context->EFlags) );
if (intnum != context->Eip / DOSVM_STUB_RM)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02lx)\n",
......@@ -446,6 +461,9 @@ BOOL WINAPI DOSVM_EmulateInterruptRM( CONTEXT86 *context, BYTE intnum )
TRACE( "builtin interrupt %02x has been branched to\n", intnum );
DOSVM_CallBuiltinHandler( context, intnum );
/* Real mode stubs use IRET so we must put flags back into stack. */
stack[2] = LOWORD(context->EFlags);
}
else
{
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment