Pack Multiple Fields into a 16-bit Control Register

Code

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

#define set_mode(x) ((x & 0x07)<<0)
#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) {
    // Your logic here
    uint16_t result=0;
    result |= set_mode(mode);
    result |= set_speed(speed);
    result |= set_status(status);
    return result;
}

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