WE_IRR
((bus_space_read_1(asict, asich, WE_IRR) &
bus_space_write_1(asict, asich, WE_IRR,
bus_space_read_1(asict, asich, WE_IRR) | WE_IRR_IEN);
x = bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE_IRR);