Bit Operations using Macros

Code

#include <stdio.h>
#include <stdint.h>
#define SET_BIT(reg,pos)     ((reg |=(1U << (pos))))
#define CLEAR_BIT(reg,pos)   ((reg) &=~(1U << (pos)))
#define TOGGLE_BIT(reg,pos)  ((reg)^= (1U << (pos)))
uint8_t modify_register(uint8_t reg){
    SET_BIT(reg, 2);
    SET_BIT(reg,7);
    CLEAR_BIT(reg, 3);
    TOGGLE_BIT(reg, 5);
    return reg;
}
int main(){
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u\n", modify_register(reg));
    return 0;
}

Solving Approach

 

 

 

Upvote
Downvote
Loading...

Expected Output

164