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/** @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.
//
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
}
}
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