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/*++
Copyright (c) 2004 - 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
x86FxSave.c
Abstract:
IA-32/x64 specific functions.
--*/
#include "BaseLibInternal.h"
/**
Save the current floating point/SSE/SSE2 context to a buffer.
Saves the current floating point/SSE/SSE2 state to the buffer specified by
Buffer. Buffer must be aligned on a 16-byte boundary. This function is only
available on IA-32 and X64.
If Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 16-byte boundary, then ASSERT().
@param Buffer Pointer to a buffer to save the floating point/SSE/SSE2 context.
**/
VOID
EFIAPI
AsmFxSave (
OUT IA32_FX_BUFFER *Buffer
)
{
ASSERT (Buffer != NULL);
ASSERT (((UINTN)Buffer & 0xf) == 0);
InternalX86FxSave (Buffer);
//
// Mark one flag at end of Buffer, it will be check by AsmFxRestor()
//
*(UINT32 *) (&Buffer[sizeof (IA32_FX_BUFFER) - 4]) = 0xAA5555AA;
}
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