mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-24 11:45:27 +01:00
37 lines
1.0 KiB
NASM
37 lines
1.0 KiB
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
|
||
|
|
; SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
;
|
||
|
|
; Module Name:
|
||
|
|
;
|
||
|
|
; InterlockedCompareExchange32.Asm
|
||
|
|
;
|
||
|
|
; Abstract:
|
||
|
|
;
|
||
|
|
; InterlockedCompareExchange32 function
|
||
|
|
;
|
||
|
|
; Notes:
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
SECTION .text
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; UINT32
|
||
|
|
; EFIAPI
|
||
|
|
; InternalSyncCompareExchange32 (
|
||
|
|
; IN volatile UINT32 *Value,
|
||
|
|
; IN UINT32 CompareValue,
|
||
|
|
; IN UINT32 ExchangeValue
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
global ASM_PFX(InternalSyncCompareExchange32)
|
||
|
|
ASM_PFX(InternalSyncCompareExchange32):
|
||
|
|
mov ecx, [esp + 4]
|
||
|
|
mov eax, [esp + 8]
|
||
|
|
mov edx, [esp + 12]
|
||
|
|
lock cmpxchg [ecx], edx
|
||
|
|
ret
|
||
|
|
|