1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006, 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.
8;
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.
11;
12; Module Name:
13;
14;   InterlockedCompareExchange64.Asm
15;
16; Abstract:
17;
18;   InterlockedCompareExchange64 function
19;
20; Notes:
21;
22;------------------------------------------------------------------------------
23
24    .code
25
26;------------------------------------------------------------------------------
27; UINT64
28; EFIAPI
29; InterlockedCompareExchange64 (
30;   IN      UINT64                    *Value,
31;   IN      UINT64                    CompareValue,
32;   IN      UINT64                    ExchangeValue
33;   );
34;------------------------------------------------------------------------------
35InternalSyncCompareExchange64   PROC
36    mov     rax, rdx
37    lock    cmpxchg [rcx], r8
38    ret
39InternalSyncCompareExchange64   ENDP
40
41    END
42