MTF_HITEOF
if ((sc->sc_flags & MTF_HITEOF) != 0)
sc->sc_flags &= ~(MTF_HITEOF | MTF_HITBOF);
sc->sc_flags &= ~(MTF_HITEOF | MTF_HITBOF);
sc->sc_flags |= MTF_HITEOF;
sc->sc_flags |= MTF_HITEOF;
if (sc->sc_flags & MTF_HITEOF)
sc->sc_flags &= ~(MTF_HITEOF | MTF_HITBOF);
sc->sc_flags &= ~(MTF_HITEOF | MTF_HITBOF);
sc->sc_flags |= MTF_HITEOF;
sc->sc_flags |= MTF_HITEOF;