void do_addmeo (void)

{

    T1 = T0;

    T0 += xer_ca + (-1);

    if (likely(!((uint32_t)T1 &

                 ((uint32_t)T1 ^ (uint32_t)T0) & (1UL << 31)))) {

        xer_ov = 0;

    } else {

        xer_ov = 1;

        xer_so = 1;

    }

    if (likely(T1 != 0))

        xer_ca = 1;

}
