MSYSINT1_REG_W
bus_space_write_2(sc->sc_iot, sc->sc_ioh, MSYSINT1_REG_W, 0x0000);
bus_space_write_2 (iot, ioh, MSYSINT1_REG_W, (1<<VRIP_INTR_POWER));
bus_space_write_2 (iot, ioh, MSYSINT1_REG_W, reg & 0xffff);
reg = (bus_space_read_2 (iot, ioh, MSYSINT1_REG_W)&0xffff) |
bus_space_write_2 (iot, ioh, MSYSINT1_REG_W, reg & 0xffff);
mask = (bus_space_read_2 (iot, ioh, MSYSINT1_REG_W)&0xffff) |