Macro-Based Register Config Helper

#include <stdio.h>
#include <stdint.h>
#define SET_ENABLE(val)    ((val & 0x1) << 0)
#define SET_MODE(val)      ((val & 0x3) << 1)
#define SET_SPEED(val)     ((val & 0x7) << 3)
uint16_t build_register(int enable, int mode, int speed){
    uint16_t reg=0;
    reg|=SET_ENABLE(enable);
    reg|=SET_MODE(mode);
    reg|=SET_SPEED(speed);
    return reg;
}
int main(){
    int enable, mode, speed;
    scanf("%d %d %d", &enable, &mode, &speed);
    uint16_t reg=build_register(enable,mode,speed);
    printf("%u\n", reg);
    return 0;
}