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1 | ;------------------------------------------------------------------------------\r |
2 | ;\r | |
4cee954e | 3 | ; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r |
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4 | ; Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>\r |
5 | ; This program and the accompanying materials\r | |
6 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
7 | ; which accompanies this distribution. The full text of the license may be found at\r | |
8 | ; http://opensource.org/licenses/bsd-license.php.\r | |
9 | ;\r | |
10 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | ;\r | |
13 | ; Module Name:\r | |
14 | ;\r | |
15 | ; InterlockedCompareExchange16.Asm\r | |
16 | ;\r | |
17 | ; Abstract:\r | |
18 | ;\r | |
19 | ; InterlockedCompareExchange16 function\r | |
20 | ;\r | |
21 | ; Notes:\r | |
22 | ;\r | |
23 | ;------------------------------------------------------------------------------\r | |
24 | \r | |
25 | .486\r | |
26 | .model flat,C\r | |
27 | .code\r | |
28 | \r | |
29 | ;------------------------------------------------------------------------------\r | |
30 | ; UINT16\r | |
31 | ; EFIAPI\r | |
32 | ; InternalSyncCompareExchange16 (\r | |
4cee954e | 33 | ; IN volatile UINT16 *Value,\r |
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34 | ; IN UINT16 CompareValue,\r |
35 | ; IN UINT16 ExchangeValue\r | |
36 | ; );\r | |
37 | ;------------------------------------------------------------------------------\r | |
38 | InternalSyncCompareExchange16 PROC\r | |
39 | mov ecx, [esp + 4]\r | |
40 | mov ax, [esp + 8]\r | |
41 | mov dx, [esp + 12]\r | |
42 | lock cmpxchg [ecx], dx\r | |
43 | ret\r | |
44 | InternalSyncCompareExchange16 ENDP\r | |
45 | \r | |
46 | END\r |