cpu.s

基于 Cortex-M3 (ARM) 内核使用之 uC/OS-II 作业系统,此例程可移植于 Cortex-M3 (ARM)内核的微处理器上的应用,于 Keil MDK 3.15b以上 工程编译,而

;******************************************************************************
;
; cpu.S - Instruction wrappers for special CPU instructions needed by the
;         drivers.
;
; Copyright (c) 2006 Luminary Micro, Inc.  All rights reserved.
;
; Software License Agreement
;
; Luminary Micro, Inc. (LMI) is supplying this software for use solely and
; exclusively on LMI's Stellaris Family of microcontroller products.
;
; The software is owned by LMI and/or its suppliers, and is protected under
; applicable copyright laws.  All rights are reserved.  Any use in violation
; of the foregoing restrictions may subject the user to criminal sanctions
; under applicable laws, as well as to civil liability for the breach of the
; terms and conditions of this license.
;
; THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
; OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
; LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
; CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
;
; This is part of revision 852 of the Stellaris Driver Library.
;
;******************************************************************************

;******************************************************************************
;
; The assembly code preamble required to put the assembler into the correct
; configuration.
;
;******************************************************************************
    thumb
    require8
    preserve8

;******************************************************************************
;
; The entire contents of this file go into the code section.
;
;******************************************************************************
    area    ||.text||, code, readonly, align=2

;******************************************************************************
;
; Wrapper function for the CPSID instruction.
;
;******************************************************************************
    export CPUcpsid
CPUcpsid
    cpsid   i
    bx      lr

;******************************************************************************
;
; Wrapper function for the CPSIE instruction.
;
;******************************************************************************
    export CPUcpsie
CPUcpsie
    cpsie   i
    bx      lr

;******************************************************************************
;
; Wrapper function for the WFI instruction.
;
;******************************************************************************
    export CPUwfi
CPUwfi
    wfi
    bx      lr

    end