Bit Operations using Macros

Code

#include <stdio.h>
#include <stdint.h>

// Define bitwise macros here
#define SETBIT(r,p) ((r) |= (1 <<(p)))
#define CLEARBIT(r,p) ((r) &= ~(1 <<(p)))
#define TOGGLEBIT(r,p) ((r) ^= (1 <<(p)))


uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    SETBIT(reg,2);
    SETBIT(reg,7);
    CLEARBIT(reg,3);
    TOGGLEBIT(reg,5);

    return reg;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}

Solving Approach

 

 

 

Upvote
Downvote
Loading...

Expected Output

164