Bit Operations using Macros

Code

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

#define SETBIT2_7(reg) (reg |= 0x84)
#define CLRBIT3(reg) (reg &= 0xF7)
#define TOGGLEBIT5(reg) (reg ^= (1 << 5))

uint8_t modify_register(uint8_t reg) {
    
    SETBIT2_7(reg);
    CLRBIT3(reg);
    TOGGLEBIT5(reg);
    return reg;
}

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

Solving Approach