audk/MdePkg/Library/BaseCpuLib/Arm/CpuSleep.asm

40 lines
1.2 KiB
NASM

;------------------------------------------------------------------------------
;
; CpuSleep() 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 CpuSleep
AREA cpu_sleep, CODE, READONLY
;/**
; Places the CPU in a sleep state until an interrupt is received.
;
; Places the CPU in a sleep state until an interrupt is received. If interrupts
; are disabled prior to calling this function, then the CPU will be placed in a
; sleep state indefinitely.
;
;**/
;VOID
;EFIAPI
;CpuSleep (
; VOID
; );
;
CpuSleep
MOV r0,#0
MCR p15,0,r0,c7,c0,4 ;Wait for Interrupt instruction
BX LR
END