Bit Operations using Macros

#include <stdio.h>
#include <stdint.h>
#define SET_BIT(r, b) ((r)|= (1<<b))

// Define bitwise macros here

uint8_t modify_register(uint8_t reg) {
    SET_BIT(reg, 2);
    SET_BIT(reg, 7);
    reg =  (reg) & ~(1<<3) ^ (1<<5);

    // Apply operations in order
    return reg;
}

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