FDIAG
t->t_dflg |= FDIAG;
t->t_dflg |= FDIAG, p = p->next;
if (t->t_dflg & FDIAG)
if (t->t_dflg & FDIAG)
(t->t_dflg & (FPIN|FAND|FDIAG|FINT));
if (flags & FDIAG) {