core_cm3.c
339 lines
| 8.7 KiB
| text/x-c
|
CLexer
jeandet@pc-de-jeandet3.LAB-LPP.LOCAL
|
r18 | /**************************************************************************//** | ||
* @file core_cm3.c | ||||
* @brief CMSIS Cortex-M3 Core Peripheral Access Layer Source File | ||||
* @version V2.00 | ||||
* @date 13. September 2010 | ||||
* | ||||
* @note | ||||
* Copyright (C) 2009-2010 ARM Limited. All rights reserved. | ||||
* | ||||
* @par | ||||
* ARM Limited (ARM) is supplying this software for use with Cortex-M | ||||
* processor based microcontrollers. This file can be freely distributed | ||||
* within development tools that are supporting such ARM based processors. | ||||
* | ||||
* @par | ||||
* 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 ARM Compiler */ | ||||
#define __INLINE __inline /*!< inline keyword for ARM Compiler */ | ||||
#elif defined ( __ICCARM__ ) | ||||
#define __ASM __asm /*!< asm keyword for IAR Compiler */ | ||||
#define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ | ||||
#elif defined ( __GNUC__ ) | ||||
#define __ASM __asm /*!< asm keyword for GNU Compiler */ | ||||
#define __INLINE inline /*!< inline keyword for GNU Compiler */ | ||||
#elif defined ( __TASKING__ ) | ||||
#define __ASM __asm /*!< asm keyword for TASKING Compiler */ | ||||
#define __INLINE inline /*!< inline keyword for TASKING Compiler */ | ||||
#endif | ||||
/* ########################## Core Instruction Access ######################### */ | ||||
#if defined ( __CC_ARM ) /*------------------ RealView Compiler ----------------*/ | ||||
/** \brief Reverse byte order (16 bit) | ||||
This function reverses the byte order in two unsigned short values. | ||||
\param [in] value Value to reverse | ||||
\return Reversed value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400677) | ||||
__ASM uint32_t __REV16(uint32_t value) | ||||
{ | ||||
rev16 r0, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Reverse byte order in signed short value | ||||
This function reverses the byte order in a signed short value with sign extension to integer. | ||||
\param [in] value Value to reverse | ||||
\return Reversed value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400677) | ||||
__ASM int32_t __REVSH(int32_t value) | ||||
{ | ||||
revsh r0, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Remove the exclusive lock | ||||
This function removes the exclusive lock which is created by LDREX. | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __CLREX(void) | ||||
{ | ||||
clrex | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
#elif (defined (__ICCARM__)) /*---------------- ICC Compiler ---------------------*/ | ||||
/* obsolete */ | ||||
#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ | ||||
/* obsolete */ | ||||
#elif (defined (__TASKING__)) /*--------------- TASKING Compiler -----------------*/ | ||||
/* obsolete */ | ||||
#endif | ||||
/* ########################### Core Function Access ########################### */ | ||||
#if defined ( __CC_ARM ) /*------------------ RealView Compiler ----------------*/ | ||||
/** \brief Get Control Register | ||||
This function returns the content of the Control Register. | ||||
\return Control Register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_CONTROL(void) | ||||
{ | ||||
mrs r0, control | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Set Control Register | ||||
This function writes the given value to the Control Register. | ||||
\param [in] control Control Register value to set | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __set_CONTROL(uint32_t control) | ||||
{ | ||||
msr control, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get ISPR Register | ||||
This function returns the content of the ISPR Register. | ||||
\return ISPR Register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_IPSR(void) | ||||
{ | ||||
mrs r0, ipsr | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get APSR Register | ||||
This function returns the content of the APSR Register. | ||||
\return APSR Register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_APSR(void) | ||||
{ | ||||
mrs r0, apsr | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get xPSR Register | ||||
This function returns the content of the xPSR Register. | ||||
\return xPSR Register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_xPSR(void) | ||||
{ | ||||
mrs r0, xpsr | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get Process Stack Pointer | ||||
This function returns the current value of the Process Stack Pointer (PSP). | ||||
\return PSP Register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_PSP(void) | ||||
{ | ||||
mrs r0, psp | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Set Process Stack Pointer | ||||
This function assigns the given value to the Process Stack Pointer (PSP). | ||||
\param [in] topOfProcStack Process Stack Pointer value to set | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __set_PSP(uint32_t topOfProcStack) | ||||
{ | ||||
msr psp, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get Main Stack Pointer | ||||
This function returns the current value of the Main Stack Pointer (MSP). | ||||
\return MSP Register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_MSP(void) | ||||
{ | ||||
mrs r0, msp | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Set Main Stack Pointer | ||||
This function assigns the given value to the Main Stack Pointer (MSP). | ||||
\param [in] topOfMainStack Main Stack Pointer value to set | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __set_MSP(uint32_t mainStackPointer) | ||||
{ | ||||
msr msp, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get Base Priority | ||||
This function returns the current value of the Base Priority register. | ||||
\return Base Priority register value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_BASEPRI(void) | ||||
{ | ||||
mrs r0, basepri | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Set Base Priority | ||||
This function assigns the given value to the Base Priority register. | ||||
\param [in] basePri Base Priority value to set | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __set_BASEPRI(uint32_t basePri) | ||||
{ | ||||
msr basepri, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get Priority Mask | ||||
This function returns the current state of the priority mask bit from the Priority Mask Register. | ||||
\return Priority Mask value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_PRIMASK(void) | ||||
{ | ||||
mrs r0, primask | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Set Priority Mask | ||||
This function assigns the given value to the Priority Mask Register. | ||||
\param [in] priMask Priority Mask | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __set_PRIMASK(uint32_t priMask) | ||||
{ | ||||
msr primask, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Get Fault Mask | ||||
This function returns the current value of the Fault Mask Register. | ||||
\return Fault Mask value | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM uint32_t __get_FAULTMASK(void) | ||||
{ | ||||
mrs r0, faultmask | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
/** \brief Set the Fault Mask | ||||
This function assigns the given value to the Fault Mask Register. | ||||
\param [in] faultMask Fault Mask value value to set | ||||
*/ | ||||
#if (__ARMCC_VERSION < 400000) | ||||
__ASM void __set_FAULTMASK(uint32_t faultMask) | ||||
{ | ||||
msr faultmask, r0 | ||||
bx lr | ||||
} | ||||
#endif /* __ARMCC_VERSION */ | ||||
#elif (defined (__ICCARM__)) /*---------------- ICC Compiler ---------------------*/ | ||||
/* obsolete */ | ||||
#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ | ||||
/* obsolete */ | ||||
#elif (defined (__TASKING__)) /*--------------- TASKING Compiler -----------------*/ | ||||
/* obsolete */ | ||||
#endif | ||||