Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SETBITS2_7(reg)   reg |= ((0x01<<2)|(0x01<<7))
#define CLEAR_3(reg)     reg &= ~(0x01<<3)
#define TOGGLE_5(reg)     reg ^= (0x01<<5)



uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg = SETBITS2_7(reg);
    reg = CLEAR_3(reg);
    reg = TOGGLE_5(reg);
    return reg;
}

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

Solving Approach