Macro-Based Register Config Helper

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

// Define macros here
#define set_enable(x)  x
#define set_mode(x) x<<1
#define set_speed(x) x<<3
uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
    uint16_t temp=0;
    temp |=set_enable(enable);
    temp |=set_mode(mode);
    temp |=set_speed(speed);
    return temp;
}

int main() {
    uint8_t enable, mode, speed;
    scanf("%hhu %hhu %hhu", &enable, &mode, &speed);

    uint16_t reg = build_register(enable, mode, speed);
    printf("%u", reg);
    return 0;
}