Macro-Based Register Config Helper

Code

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

#define ENABLE 0
#define MODE 1
#define SPEED 3

uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed)
{
    uint16_t reg =0;
    reg |= ((enable & 0x01)<<ENABLE);
    reg |= ((mode & 0x03)<<MODE);
    reg |= ((speed & 0x07)<<SPEED);

    return reg;
}

int main(void)
{
    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