1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4; Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
5; This program and the accompanying materials
6; are licensed and made available under the terms and conditions of the BSD License
7; which accompanies this distribution.  The full text of the license may be found at
8; http://opensource.org/licenses/bsd-license.php.
9;
10; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12;
13; Module Name:
14;
15;   InterlockedCompareExchange16.Asm
16;
17; Abstract:
18;
19;   InterlockedCompareExchange16 function
20;
21; Notes:
22;
23;------------------------------------------------------------------------------
24
25    .486
26    .model  flat,C
27    .code
28
29;------------------------------------------------------------------------------
30; UINT16
31; EFIAPI
32; InternalSyncCompareExchange16 (
33;   IN      UINT16                    *Value,
34;   IN      UINT16                    CompareValue,
35;   IN      UINT16                    ExchangeValue
36;   );
37;------------------------------------------------------------------------------
38InternalSyncCompareExchange16   PROC
39    mov     ecx, [esp + 4]
40    mov     ax, [esp + 8]
41    mov     dx, [esp + 12]
42    lock    cmpxchg [ecx], dx
43    ret
44InternalSyncCompareExchange16   ENDP
45
46    END
47