ATNO
bus_space_write_1(iot, ioh, SCSISIG, PH_MSGOUT | ATNO);
bus_space_write_1(iot, ioh, SCSISIG, sc->sc_phase | ATNO);
if ((ahd_inb(ahd, SCSISIGO) & ATNO) != 0
ahd_outb(ahd, SCSISIGO, ATNO);
if ((ahd_inb(ahd, SCSISIGO) & ATNO) != 0) {
&& (ahd_inb(ahd, SCSISIGO) & ATNO) != 0) {
scsisigo = ATNO;