Macro-Based Register Config Helper

Code

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

// Define macros here
#define ENABLE 0
#define MODE 1
#define SPEED 3
#define RESERVED 6
uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
    uint16_t returned_register=0;
    returned_register|=enable<<ENABLE;
    returned_register|=mode<<MODE;
    returned_register|=speed<<SPEED;
    returned_register|=0<<RESERVED;
    return returned_register;
}

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;
}

Solving Approach