| ;------------------------------------------------------------------------------ | |
| ; | |
| ; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR> | |
| ; Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ; Module Name: | |
| ; | |
| ; InterlockedCompareExchange16.Asm | |
| ; | |
| ; Abstract: | |
| ; | |
| ; InterlockedCompareExchange16 function | |
| ; | |
| ; Notes: | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| DEFAULT REL | |
| SECTION .text | |
| ;------------------------------------------------------------------------------ | |
| ; UINT16 | |
| ; EFIAPI | |
| ; InternalSyncCompareExchange16 ( | |
| ; IN volatile UINT16 *Value, | |
| ; IN UINT16 CompareValue, | |
| ; IN UINT16 ExchangeValue | |
| ; ); | |
| ;------------------------------------------------------------------------------ | |
| global ASM_PFX(InternalSyncCompareExchange16) | |
| ASM_PFX(InternalSyncCompareExchange16): | |
| mov ax, dx | |
| lock cmpxchg [rcx], r8w | |
| ret | |