I'll make a litle "OS" when I know all about C. I won't make a real. Just for kind.
I also know how to use pointers (a bit hard).
#include <stdio.h>
main()
{
int x = 5, y = x*x, z = x*y;
int *ptx, *pty, *ptz;
/* Colocando os endereços para cada ponteiro */
ptx = &x;
pty = &y;
ptz = &z;
printf("X = %d\nPos X = %ld\n\n", *ptx, ptx);
printf("Y = %d\nPos Y = %ld\n\n", *pty, pty);
printf("Z = %d\nPos Z = %ld\n\n", *ptz, ptz);
getch();
}