public void handler() {
            PORT_START();   /* IN1 */

            PORT_ANALOG(0xff, 0x00, IPT_DIAL | IPF_REVERSE, 60, 15, 0, 0);

            PORT_START();   /* IN2 */

            PORT_ANALOG(0xff, 0x00, IPT_DIAL | IPF_REVERSE | IPF_COCKTAIL, 60, 15, 0, 0);

            PORT_START();   /* IN0 */

            PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_COIN1);
            PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_COIN2);
            PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_COIN3);
            PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_COIN4);
            PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_START1);
            PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_START2);
            PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_BUTTON1);
            PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL);

            PORT_START();   /* DSW0 */

            PORT_DIPNAME(0x01, 0x01, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x01, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x02, 0x02, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x02, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x04, 0x04, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x04, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x08, 0x08, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x08, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x10, 0x10, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x10, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x20, 0x20, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x20, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x40, 0x40, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x40, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_SERVICE(0x80, IP_ACTIVE_LOW);

            PORT_START(); 	  /* DSW1 */

            PORT_DIPNAME(0x01, 0x01, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x01, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x02, 0x02, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x02, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x04, 0x04, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x04, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x08, 0x08, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x08, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x10, 0x10, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x10, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x20, 0x20, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x20, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x40, 0x40, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x40, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            PORT_DIPNAME(0x80, 0x80, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x80, DEF_STR("Off"));
            PORT_DIPSETTING(0x00, DEF_STR("On"));
            INPUT_PORTS_END();
        }