NEXT_I_BIT
((*(volatile u_long *)IIOV(NEXT_P_INTRMASK)) &= (~NEXT_I_BIT(x)));
NEXT_I_BIT(nsc->sc_chan->nd_intr));
NEXT_I_BIT(nsc->sc_chan->nd_intr));
NEXT_I_BIT(nsc->sc_chan->nd_intr));
NEXT_INTR_BITS, NEXT_I_BIT(nsc->sc_chan->nd_intr));
NEXT_INTR_BITS, NEXT_I_BIT(nsc->sc_chan->nd_intr));
NEXT_INTR_BITS, NEXT_I_BIT(nsc->sc_chan->nd_intr));
NEXT_INTR_BITS, NEXT_I_BIT(nsc->sc_chan->nd_intr));
#define INTR_ENABLE(x) (*intrmask |= NEXT_I_BIT(x))
#define INTR_DISABLE(x) (*intrmask &= (~NEXT_I_BIT(x)))
#define INTR_OCCURRED(x) (*intrstat & NEXT_I_BIT(x))