1  static __inline__ unsigned char BCD(unsigned char binval)
       2  {
       3    if (binval > 99) return 0x99;
       4    return (((binval/10) << 4) | (binval%10));
       5  }
       6  
       7  void int1a(unsigned char i)
       8  {
       9      (*((unsigned char *)1)) = BCD(i);
      10  }