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/** @file
IA-32/x64 AsmFxSave()
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "BaseLibInternals.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 A pointer to a buffer to save the floating point/SSE/SSE2 context.
**/
VOID
EFIAPI
AsmFxSave (
OUT IA32_FX_BUFFER *Buffer
)
{
ASSERT (Buffer != NULL);
ASSERT (0 == ((UINTN)Buffer & 0xf));
InternalX86FxSave (Buffer);
//
// Mark one flag at end of Buffer, it will be check by AsmFxRestor()
//
*(UINT32 *) (&Buffer->Buffer[sizeof (Buffer->Buffer) - 4]) = 0xAA5555AA;
}
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