mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-27 16:58:09 +01:00
37 lines
1.0 KiB
NASM
37 lines
1.0 KiB
NASM
;------------------------------------------------------------------------------
|
|
;
|
|
; 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
|
|
|