PORT/Common_Macros.h at master · AU20GradProject/PORT · GitHub

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 /******************************************************************************
 *
 * Module: Common - Macros
 *
 * File Name: Common_Macros.h
 *
 * Description: Commonly used Macros
 *
 * Author: Mohamed Tarek
 *
 *******************************************************************************/

#ifndef COMMON_MACROS
#define COMMON_MACROS

/* Set a certain bit in any register */
#define SET_BIT(REG,BIT) ((*((volatile uint32 *)(REG)))|=(1<<(BIT)))

/* Clear a certain bit in any register */
#define CLEAR_BIT(REG,BIT) ((*((volatile uint32 *)(REG)))&=(~(1<<(BIT))))

/* Toggle a certain bit in any register */
#define TOGGLE_BIT(REG,BIT) ((*((volatile uint32 *)(REG)))^=(1<<(BIT)))

/* Rotate right the register value with specific number of rotates */
#define ROR(REG,num) ( REG= (REG>>num) | (REG<<(8-num)) )

/* Rotate left the register value with specific number of rotates */
#define ROL(REG,num) ( REG= (REG<<num) | (REG>>(8-num)) )

/* Check if a specific bit is set in any register and return true if yes */
#define BIT_IS_SET(REG,BIT) ( REG & (1<<BIT) )

/* Check if a specific bit is cleared in any register and return true if yes */
#define BIT_IS_CLEAR(REG,BIT) ( !(REG & (1<<BIT)) )


#define WRITE_REG_32BIT(REG,value) (*((volatile uint32 *)(REG)))=value
#define READ_REG_32BIT(REG) (*((volatile uint32 *)(REG)))


#endif