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/*************************************************************************
Driver for Midway X-unit games.
**************************************************************************/
class midxunit_state : public midtunit_state
{
public:
midxunit_state(const machine_config &mconfig, device_type type, const char *tag)
: midtunit_state(mconfig, type, tag),
m_nvram(*this, "nvram") { }
required_shared_ptr<UINT16> m_nvram;
UINT8 m_cmos_write_enable;
UINT16 m_iodata[8];
UINT8 m_ioshuffle[16];
UINT8 m_analog_port;
UINT8 m_uart[8];
UINT8 m_security_bits;
DECLARE_READ16_MEMBER(midxunit_cmos_r);
DECLARE_WRITE16_MEMBER(midxunit_cmos_w);
DECLARE_WRITE16_MEMBER(midxunit_io_w);
DECLARE_WRITE16_MEMBER(midxunit_unknown_w);
DECLARE_READ16_MEMBER(midxunit_io_r);
DECLARE_READ16_MEMBER(midxunit_analog_r);
DECLARE_WRITE16_MEMBER(midxunit_analog_select_w);
DECLARE_READ16_MEMBER(midxunit_status_r);
DECLARE_READ16_MEMBER(midxunit_uart_r);
DECLARE_WRITE16_MEMBER(midxunit_uart_w);
DECLARE_READ16_MEMBER(midxunit_security_r);
DECLARE_WRITE16_MEMBER(midxunit_security_w);
DECLARE_WRITE16_MEMBER(midxunit_security_clock_w);
DECLARE_READ16_MEMBER(midxunit_sound_r);
DECLARE_READ16_MEMBER(midxunit_sound_state_r);
DECLARE_WRITE16_MEMBER(midxunit_sound_w);
DECLARE_DRIVER_INIT(revx);
DECLARE_MACHINE_RESET(midxunit);
DECLARE_VIDEO_START(midxunit);
};
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