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[FAST486]

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- Fix the FPU_CHECK() macro.
- Make sure pages are marked dirty even if they have been accessed before.
- Always return after calling Fast486Exception.


svn path=/trunk/; revision=65312
This commit is contained in:
Aleksandar Andrejevic 2014-11-08 02:56:54 +00:00
parent ca31e1569d
commit 3117e70e36
2 changed files with 7 additions and 6 deletions
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11
reactos/lib/fast486/common.inl
View file

@ -112,13 +112,12 @@ Fast486GetPageTableEntry(PFAST486_STATE State,
/* Make sure it is present */
if (!TableEntry.Present) return 0;
if (MarkAsDirty) TableEntry.Dirty = TRUE;
/* Was the table entry accessed before? */
if (!TableEntry.Accessed)
/* Do we need to change any flags? */
if (!TableEntry.Accessed || (MarkAsDirty && !TableEntry.Dirty))
{
/* Well, it is now */
/* Mark it as accessed and optionally dirty too */
TableEntry.Accessed = TRUE;
if (MarkAsDirty) TableEntry.Dirty = TRUE;
/* Write back the table entry */
State->MemWriteCallback(State,
@ -512,6 +511,7 @@ Fast486LoadSegmentInternal(PFAST486_STATE State,
{
/* Invalid selector */
Fast486ExceptionWithErrorCode(State, Exception, Selector);
return FALSE;
}
if (Segment == FAST486_REG_SS)
@ -569,6 +569,7 @@ Fast486LoadSegmentInternal(PFAST486_STATE State,
{
/* Must be a segment descriptor */
Fast486ExceptionWithErrorCode(State, Exception, Selector);
return FALSE;
}
if (!GdtEntry.Present)

2
reactos/lib/fast486/fpu.h
View file

@ -28,7 +28,7 @@
/* DEFINES ********************************************************************/
#define FPU_CHECK() if (State->ControlRegisters[FAST486_REG_CR0] & FAST486_CR0_EM) \
#define FPU_CHECK() if (State->ControlRegisters[FAST486_REG_CR0] & (FAST486_CR0_EM | FAST486_CR0_TS)) \
{ \
Fast486Exception(State, FAST486_EXCEPTION_NM); \
return; \