Pack Multiple Fields into a 16-bit Control Register

Code

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

#define SET_Mode(x) (x & 0x07) ;
#define SET_SPEED(x) (x & 0x1F) <<3;
#define SET_Status(x) (x & 0x3F) <<10;

uint16_t pack_register(uint8_t mode, uint8_t speed, uint8_t status) {
    uint16_t value = 0x00;
    value |= SET_Mode(mode);
    value |= SET_SPEED(speed);
    value |= SET_Status(status);
    return value;
}

int main() {
    uint8_t mode, speed, status;
    scanf("%hhu %hhu %hhu", &mode, &speed, &status);

    uint16_t reg = pack_register(mode, speed, status);
    printf("%u", reg);
    return 0;
}

Solving Approach