#include <stdio.h>

struct disk_register {
   unsigned ready:1;
   unsigned error_occurred:1;
   unsigned disk_spinning:1;
   unsigned write_protect:1;
   unsigned head_loaded:1;
   unsigned error_code:8;
   unsigned track:9;
   unsigned sector:5;
   unsigned command:5;
};
 
int main() {

   return 0;
}