Macro-Based Register Config Helper

Code

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

#define set_Enable(x) ((x) & 0x01)
#define set_Mode(x) ((x) & 0x03) << 1
#define set_Speed(x) ((x) & 0x07) << 3

uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
    
    return set_Enable(enable) | set_Mode(mode) | set_Speed(speed);
}

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