1 ;------------------------------------------------------------------------------
3 ; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
4 ; 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 ; InterlockedCompareExchange64.Asm
18 ; InterlockedCompareExchange64 function
22 ;------------------------------------------------------------------------------
27 ;------------------------------------------------------------------------------
30 ; InternalSyncCompareExchange64 (
31 ; IN volatile UINT64 *Value,
32 ; IN UINT64 CompareValue,
33 ; IN UINT64 ExchangeValue
35 ;------------------------------------------------------------------------------
36 global ASM_PFX(InternalSyncCompareExchange64)
37 ASM_PFX(InternalSyncCompareExchange64):
39 lock cmpxchg [rcx], r8