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Tweak KeSaveFloatingPoint() and KeRestoreFloatingPoint()

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svn path=/trunk/; revision=6551
This commit is contained in:
Gé van Geldorp 2003-11-06 20:40:25 +00:00
parent 5cfbea5fee
commit ce0b4616e6
1 changed files with 9 additions and 8 deletions
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17
reactos/ntoskrnl/ke/i386/fpu.c
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@ -1,4 +1,4 @@
/* $Id: fpu.c,v 1.10 2003/10/12 17:05:45 hbirr Exp $ /* $Id: fpu.c,v 1.11 2003/11/06 20:40:25 gvg Exp $
* *
* ReactOS kernel * ReactOS kernel
* Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team * Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
@ -82,15 +82,16 @@ KiCheckFPU(VOID)
NTSTATUS STDCALL NTSTATUS STDCALL
KeSaveFloatingPointState(OUT PKFLOATING_SAVE Save) KeSaveFloatingPointState(OUT PKFLOATING_SAVE Save)
{ {
VOID **FpState = (VOID **) Save; char *FpState;
*FpState = ExAllocatePool(PagedPool, FPU_STATE_SIZE); FpState = ExAllocatePool(PagedPool, FPU_STATE_SIZE);
if (NULL == *FpState) if (NULL == FpState)
{ {
return STATUS_INSUFFICIENT_RESOURCES; return STATUS_INSUFFICIENT_RESOURCES;
} }
*((PVOID *) Save) = FpState;
__asm__("fsave %0\n\t" : /* no output */ : "m" (*FpState)); __asm__("fsave %0\n\t" : "=m" (*FpState));
return STATUS_SUCCESS; return STATUS_SUCCESS;
} }
@ -98,10 +99,10 @@ KeSaveFloatingPointState(OUT PKFLOATING_SAVE Save)
NTSTATUS STDCALL NTSTATUS STDCALL
KeRestoreFloatingPointState(IN PKFLOATING_SAVE Save) KeRestoreFloatingPointState(IN PKFLOATING_SAVE Save)
{ {
VOID **FpState = (VOID **) Save; char *FpState = *((PVOID *) Save);
__asm__("frstor %0\n\t" : /* no output */ : "m" (*FpState)); __asm__("frstor %0\n\t" : "=m" (*FpState));
ExFreePool(*FpState); ExFreePool(FpState);
return STATUS_SUCCESS; return STATUS_SUCCESS;
} }