void sub(int *, long long *, int);



   void sub(int *i4_buff, long long *i8_buff, int num)
/* ===============
**
** Tries to expand I4 data in the array to I8, working down from the top.
*/

{
    int  i;

    for(i=num-1; i>=0; i--) i8_buff[i] = i4_buff[i];
}