25. Pack Multiple Fields into a 16-bit Control Register

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

uint16_t pack_register(uint8_t mode, uint8_t speed, uint8_t status) {
     uint16_t pack_registernew;
     pack_registernew=(status<<2);
     pack_registernew=(pack_registernew<<5)+speed;
     pack_registernew=(pack_registernew<<3)+mode;
    return pack_registernew;
}
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;
}