Pack Multiple Fields into a 16-bit Control Register

Code

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

uint16_t pack_register(uint8_t mode, uint8_t speed, uint8_t status) 
{
    // Your logic here
    mode   &= 0x07;  // 3 bits
    speed  &= 0x1F;  // 5 bits
    status &= 0x3F;  // 6 bits

    return (status << 10) | (speed << 3) | mode;
    /*
    uint8_t _mode_mask = 0x07;
    uint8_t speed_mask = 0x1F;
    uint8_t status_mask = 0x3F;
    uint8_t _mode_res = 0x00;
    uint8_t _speed_res = 0x00;
    uint8_t _status_res = 0x00;
    uint32_t result = 0x00;
    _mode_res = _mode_mask & mode;
    _speed_res = (speed_mask & speed);//((speed_mask & speed) << 5);
    _status_res = (status_mask & status);//((status_mask & status) << 10);
    result = (_status_res << 10) | (_speed_res << 3) | _mode_res;
    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