projects / mirror_edk2.git / blame
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|---|---|---|
| a04618e6 JJ |
1 | ;------------------------------------------------------------------------------\r |
| 2 | ;\r | |
| 3 | ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r | |
| 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 | DEFAULT REL\r | |
| 26 | SECTION .text\r | |
| 27 | \r | |
| 28 | ;------------------------------------------------------------------------------\r | |
| 29 | ; UINT16\r | |
| 30 | ; EFIAPI\r | |
| 31 | ; InterlockedCompareExchange16 (\r | |
| 32 | ; IN UINT16 *Value,\r | |
| 33 | ; IN UINT16 CompareValue,\r | |
| 34 | ; IN UINT16 ExchangeValue\r | |
| 35 | ; );\r | |
| 36 | ;------------------------------------------------------------------------------\r | |
| 37 | global ASM_PFX(InternalSyncCompareExchange16)\r | |
| 38 | ASM_PFX(InternalSyncCompareExchange16):\r | |
| 39 | mov ax, dx\r | |
| 40 | lock cmpxchg [rcx], r8w\r | |
| 41 | ret\r | |
| 42 | \r |