/*********************************************************************************************************
* @file: core_cm3.c
* @purpose: CMSIS Cortex-M3 Core Peripheral Access Layer Source File
* @version: V1.20
* @date: 22. May 2009
*--------------------------------------------------------------------------------------------------------
*
* Copyright (C) 2009 ARM Limited. All rights reserved.
*
* ARM Limited (ARM) is supplying this software for use with Cortex-Mx
* processor based microcontrollers. This file can be freely distributed
* within development tools that are supporting such ARM based processors.
*
* 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.
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
*
*********************************************************************************************************/
#include <stdint.h>
/*
* define compiler specific symbols
*/
#if defined ( __CC_ARM )
#define __ASM __asm /*!< asm keyword for armcc */
#define __INLINE __inline /*!< inline keyword for armcc */
#elif defined ( __ICCARM__ )
#define __ASM __ asm /*!< asm keyword for iarcc */
#define __INLINE inline /*!< inline keyword for iarcc. */
/* Only avaiable in High */
/* optimization mode! */
#elif defined ( __GNUC__ )
#define __ASM _asm /*!< asm keyword for gcc */
#define __INLINE inline /*!< inline keyword for gcc */
#elif defined ( __TASKING__ )
#define __ASM __asm /*!< asm keyword for TASKING */
/*Compiler */
#define __INLINE inline /*!< inline keyword for TASKING */
/* Compiler */
#endif
#if defined ( __CC_ARM )
/*---------------------------------RealView Compiler ---------------------------------------------------*/
/*********************************************************************************************************
* @brief Return the Process Stack Pointer
*
* @param none
* @return uint32_t ProcessStackPointer
*
* Return the actual process stack pointer
*********************************************************************************************************/
__ASM uint32_t __get_PSP(void)
{
mrs r0, psp
bx lr
}
/**********************************************************************************************************
* @brief Set the Process Stack Pointer
*
* @param uint32_t Process Stack Pointer
* @return none
*
* Assign the value ProcessStackPointer to the MSP
* (process stack pointer) Cortex processor register
*********************************************************************************************************/
__ASM void __set_PSP(uint32_t topOfProcStack)
{
msr psp, r0
bx lr
}
/**********************************************************************************************************
* @brief Return the Main Stack Pointer
*
* @param none
* @return uint32_t Main Stack Pointer
*
* Return the current value of the MSP (main stack pointer)
* Cortex processor register
*********************************************************************************************************/
__ASM uint32_t __get_MSP(void)
{
mrs r0, msp
bx lr
}
/**********************************************************************************************************
* @brief Set the Main Stack Pointer
*
* @param uint32_t Main Stack Pointer
* @return none
*
* Assign the value mainStackPointer to the MSP
* (main stack pointer) Cortex processor register
*********************************************************************************************************/
__ASM void __set_MSP(uint32_t mainStackPointer)
{
msr msp, r0
bx lr
}
/**********************************************************************************************************
* @brief Reverse byte order in unsigned short value
*
* @param uint16_t value to reverse
* @return uint32_t reversed value
*
* Reverse byte order in unsigned short value
*********************************************************************************************************/
__ASM uint32_t __REV16(uint16_t value)
{
rev16 r0, r0
bx lr
}
/**********************************************************************************************************
* @brief Reverse byte order in signed short value with sign extension to integer
*
* @param int16_t value to reverse
* @return int32_t reversed value
*
* Reverse byte order in signed short value with sign extension to integer
*********************************************************************************************************/
__ASM int32_t __REVSH(int16_t value)
{
revsh r0, r0
bx lr
}
#if (__ARMCC_VERSION < 400000)
/**********************************************************************************************************
* @brief Remove the exclusive lock created by ldrex
*
* @param none
* @return none
*
* Removes the exclusive lock which is created by ldrex.
*********************************************************************************************************/
__ASM void __CLREX(void)
{
clrex
}
/**********************************************************************************************************
* @brief Return the Base Priority value
*
* @param none
* @return uint32_t BasePriority
*
* Return the content of the base priority register
*********************************************************************************************************/
__ASM uint32_t __get_BASEPRI(void)
{
mrs r0, basepri
bx lr
}
/**********************************************************************************************************
* @brief Set the Base Priority value
*
* @param uint32_t BasePriority
* @return none
*
* Set the base priority register
*********************************************************************************************************/
__ASM void __set_BASEPRI(uint32_t basePri)
{
msr basepri, r0
bx lr
}
/**********************************************************************************************************
* @brief Return the Priority Mask value
*
* @param none
* @return uint32_t PriMask
*
* Return the state of the priority mask bit from the priority mask
* register
*********************************************************************************************************/
__ASM uint32_t __get_PRIMASK(void)
{
mrs r0, primask
bx lr
}
/**********************************************************************************************************
* @brief Set the Priority Mask value
*
* @param uint32_t PriMask
* @return none
*
* Set the priority mask bit in the priority mask register
*********************************************************************************************************/
__ASM void __set_PRIMASK(uint32_t priMask)
{
msr primask, r0
bx lr
}
/**
GPIO.rar_GPIO ARM
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