audk/MdePkg/Library/BaseLib/Arm/EnableInterrupts.asm

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1.1 KiB
NASM

;------------------------------------------------------------------------------
;
; EnableInterrupts() 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.
;
;------------------------------------------------------------------------------
EXPORT EnableInterrupts
AREA Interrupt_enable, CODE, READONLY
;/**
; Enables CPU interrupts.
;
;**/
;VOID
;EFIAPI
;EnableInterrupts (
; VOID
; );
;
EnableInterrupts
MRS R0,CPSR
BIC R0,R0,#0x80 ;Enable IRQ interrupts
MSR CPSR_c,R0
BX LR
END