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1 | ;------------------------------------------------------------------------------\r | |
2 | ;\r | |
3 | ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r | |
4 | ; This program and the accompanying materials\r | |
5 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
6 | ; which accompanies this distribution. The full text of the license may be found at\r | |
7 | ; http://opensource.org/licenses/bsd-license.php.\r | |
8 | ;\r | |
9 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | ;\r | |
12 | ; Module Name:\r | |
13 | ;\r | |
14 | ; InterlockedCompareExchange16.Asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
18 | ; InterlockedCompareExchange16 function\r | |
19 | ;\r | |
20 | ; Notes:\r | |
21 | ;\r | |
22 | ;------------------------------------------------------------------------------\r | |
23 | \r | |
24 | SECTION .text\r | |
25 | \r | |
26 | ;------------------------------------------------------------------------------\r | |
27 | ; UINT32\r | |
28 | ; EFIAPI\r | |
29 | ; InternalSyncCompareExchange16 (\r | |
30 | ; IN UINT16 *Value,\r | |
31 | ; IN UINT16 CompareValue,\r | |
32 | ; IN UINT16 ExchangeValue\r | |
33 | ; );\r | |
34 | ;------------------------------------------------------------------------------\r | |
35 | global ASM_PFX(InternalSyncCompareExchange16)\r | |
36 | ASM_PFX(InternalSyncCompareExchange16):\r | |
37 | mov ecx, [esp + 4]\r | |
38 | mov eax, [esp + 8]\r | |
39 | mov edx, [esp + 12]\r | |
40 | lock cmpxchg [ecx], dx\r | |
41 | ret\r | |
42 | \r |