mirror of https://github.com/acidanthera/audk.git
47 lines
1.4 KiB
ArmAsm
47 lines
1.4 KiB
ArmAsm
//
|
|
// Include common header file for this module.
|
|
//
|
|
#include "CommonHeader.h"
|
|
|
|
#------------------------------------------------------------------------------
|
|
#
|
|
# Copyright (c) 2006, Intel Corporation
|
|
# All rights reserved. This program and the accompanying materials
|
|
# are licensed and made available under the terms and conditions of the BSD License
|
|
# which accompanies this distribution. The full text of the license may be found at
|
|
# http://opensource.org/licenses/bsd-license.php
|
|
#
|
|
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
#
|
|
# Module Name:
|
|
#
|
|
# InterlockedCompareExchange32.Asm
|
|
#
|
|
# Abstract:
|
|
#
|
|
# InternalSyncCompareExchange32 function
|
|
#
|
|
# Notes:
|
|
#
|
|
#------------------------------------------------------------------------------
|
|
|
|
.globl ASM_PFX(InternalSyncCompareExchange32)
|
|
|
|
#------------------------------------------------------------------------------
|
|
# UINT32
|
|
# EFIAPI
|
|
# InternalSyncCompareExchange32 (
|
|
# IN UINT32 *Value,
|
|
# IN UINT32 CompareValue,
|
|
# IN UINT32 ExchangeValue
|
|
# );
|
|
#------------------------------------------------------------------------------
|
|
ASM_PFX(InternalSyncCompareExchange32):
|
|
movl 4(%esp), %ecx
|
|
movl 8(%esp), %eax
|
|
movl 12(%esp), %edx
|
|
lock
|
|
cmpxchgl %edx, (%ecx)
|
|
ret
|