mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-20 15:48:18 +01:00
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
|
/** @file
|
||
|
|
IA-32/x64 AsmFxRestore()
|
||
|
|
|
||
|
|
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
|
||
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#include "BaseLibInternals.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
Restores the current floating point/SSE/SSE2 context from a buffer.
|
||
|
|
|
||
|
|
Restores the current floating point/SSE/SSE2 state from 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().
|
||
|
|
If Buffer was not saved with AsmFxSave(), then ASSERT().
|
||
|
|
|
||
|
|
@param Buffer A pointer to a buffer to save the floating point/SSE/SSE2 context.
|
||
|
|
|
||
|
|
**/
|
||
|
|
VOID
|
||
|
|
EFIAPI
|
||
|
|
AsmFxRestore (
|
||
|
|
IN CONST IA32_FX_BUFFER *Buffer
|
||
|
|
)
|
||
|
|
{
|
||
|
|
ASSERT (Buffer != NULL);
|
||
|
|
ASSERT (0 == ((UINTN)Buffer & 0xf));
|
||
|
|
|
||
|
|
//
|
||
|
|
// Check the flag recorded by AsmFxSave()
|
||
|
|
//
|
||
|
|
ASSERT (0xAA5555AA == *(UINT32 *) (&Buffer->Buffer[sizeof (Buffer->Buffer) - 4]));
|
||
|
|
|
||
|
|
InternalX86FxRestore (Buffer);
|
||
|
|
}
|