aboutsummaryrefslogtreecommitdiffstats
path: root/MdePkg/Library/BaseLib/Arm/DisableInterrupts.S
blob: d1278be87510990abe1e98e99affb7195421358b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
#------------------------------------------------------------------------------ 
#
# DisableInterrupts() for ARM
#
# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# 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.
#
#------------------------------------------------------------------------------

.text
.p2align 2
GCC_ASM_EXPORT(DisableInterrupts)

#/**
#  Disables CPU interrupts.
#
#**/
#VOID
#EFIAPI
#DisableInterrupts (
#  VOID
#  );
#
ASM_PFX(DisableInterrupts):
    mrs  R0,CPSR
    orr  R0,R0,#0x80    @Disable IRQ interrupts
    msr  CPSR_c,R0
    bx   LR