mirror of https://github.com/acidanthera/audk.git
36 lines
988 B
C
36 lines
988 B
C
/** @file
|
|
InterlockedCompareExchange32 function
|
|
|
|
Copyright (c) 2006 - 2007, Intel Corporation<BR>
|
|
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.
|
|
|
|
**/
|
|
|
|
//
|
|
// Include common header file for this module.
|
|
//
|
|
#include "CommonHeader.h"
|
|
|
|
UINT32
|
|
EFIAPI
|
|
InternalSyncCompareExchange32 (
|
|
IN UINT32 *Value,
|
|
IN UINT32 CompareValue,
|
|
IN UINT32 ExchangeValue
|
|
)
|
|
{
|
|
_asm {
|
|
mov ecx, Value
|
|
mov eax, CompareValue
|
|
mov edx, ExchangeValue
|
|
lock cmpxchg [ecx], edx
|
|
}
|
|
}
|
|
|