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) {
    // Your logic here
    uint16_t packed=0;
    packed|=((mode&((1u<<3)-1))<<0);
    packed|=((speed&((1u<<5)-1))<<3);
    packed|=((status&((1u<<6)-1))<<10);
    return packed;

    
}

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;
}