| ;------------------------------------------------------------------------------ | |
| ; | |
| ; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ; Module Name: | |
| ; | |
| ; InterlockedCompareExchange64.Asm | |
| ; | |
| ; Abstract: | |
| ; | |
| ; InterlockedCompareExchange64 function | |
| ; | |
| ; Notes: | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| SECTION .text | |
| ;------------------------------------------------------------------------------ | |
| ; UINT64 | |
| ; EFIAPI | |
| ; InternalSyncCompareExchange64 ( | |
| ; IN volatile UINT64 *Value, | |
| ; IN UINT64 CompareValue, | |
| ; IN UINT64 ExchangeValue | |
| ; ); | |
| ;------------------------------------------------------------------------------ | |
| global ASM_PFX(InternalSyncCompareExchange64) | |
| ASM_PFX(InternalSyncCompareExchange64): | |
| push esi | |
| push ebx | |
| mov esi, [esp + 12] | |
| mov eax, [esp + 16] | |
| mov edx, [esp + 20] | |
| mov ebx, [esp + 24] | |
| mov ecx, [esp + 28] | |
| lock cmpxchg8b [esi] | |
| pop ebx | |
| pop esi | |
| ret | |