1 #------------------------------------------------------------------------------
3 # Copyright (c) 2006 - 2009, Intel Corporation
4 # All rights reserved. This program and the accompanying materials
5 # are licensed and made available under the terms and conditions of the BSD License
6 # which accompanies this distribution. The full text of the license may be found at
7 # http://opensource.org/licenses/bsd-license.php
9 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14 # InterlockedCompareExchange32.S
18 # InterlockedCompareExchange32 function
22 #------------------------------------------------------------------------------
24 #------------------------------------------------------------------------------
27 # InterlockedCompareExchange32 (
29 # IN UINT32 CompareValue,
30 # IN UINT32 ExchangeValue
32 #------------------------------------------------------------------------------
33 ASM_GLOBAL ASM_PFX(InternalSyncCompareExchange32)
34 ASM_PFX(InternalSyncCompareExchange32):
36 lock/cmpxchg %r8d, (%rcx)