public void handler() {
            PORT_START();
            /* IN0 */
            PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_COIN1);
            PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_COIN2);
            PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT | IPF_2WAY);
            PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT | IPF_2WAY);
            PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_BUTTON1);
            PORT_DIPNAME(0x20, 0x00, DEF_STR("Cabinet"));
            PORT_DIPSETTING(0x00, DEF_STR("Upright"));
            PORT_DIPSETTING(0x20, DEF_STR("Cocktail"));
            PORT_SERVICE(0x40, IP_ACTIVE_HIGH);
            PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_COIN3);

            PORT_START();
            /* IN1 */
            PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_START1);
            PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_START2);
            PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT | IPF_2WAY | IPF_COCKTAIL);
            PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT | IPF_2WAY | IPF_COCKTAIL);
            PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 | IPF_COCKTAIL);
            PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNKNOWN);
            PORT_DIPNAME(0xc0, 0x00, DEF_STR("Coinage"));
            PORT_DIPSETTING(0x40, "A 2C/1C  B 1C/3C");
            PORT_DIPSETTING(0x00, "A 1C/1C  B 1C/6C");
            PORT_DIPSETTING(0x80, "A 1C/2C  B 1C/12C");
            PORT_DIPSETTING(0xc0, DEF_STR("Free_Play"));

            PORT_START();
            /* DSW0 */
            PORT_DIPNAME(0x03, 0x01, DEF_STR("Bonus_Life"));
            PORT_DIPSETTING(0x01, "4000");
            PORT_DIPSETTING(0x02, "5000");
            PORT_DIPSETTING(0x03, "7000");
            PORT_DIPSETTING(0x00, "None");
            PORT_DIPNAME(0x04, 0x00, DEF_STR("Lives"));
            PORT_DIPSETTING(0x00, "3");
            PORT_DIPSETTING(0x04, "5");
            PORT_DIPNAME(0x08, 0x00, DEF_STR("Unknown"));
            PORT_DIPSETTING(0x00, DEF_STR("Off"));
            PORT_DIPSETTING(0x08, DEF_STR("On"));
            PORT_BIT(0xf0, IP_ACTIVE_HIGH, IPT_UNUSED);
            INPUT_PORTS_END();
        }