Macro-Based Register Config Helper

Code

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

#define set_enble(x) ((x & 0x01) <<0) ;
#define set_modle(x) ((x & 0x03) <<1) ;
#define set_speed(x) ((x & 0x07) <<3) ;

// Build register using macros
uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
  uint16_t reg = 0 ;
    reg |= set_enble(enable);
    reg |= set_modle(mode);
    reg |= set_speed(speed); 

    return reg;
}

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