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/*************************************************************************

    Psikyo PS6807 (PS4)

*************************************************************************/

#define MASTER_CLOCK 57272700	// main oscillator frequency


class psikyo4_state : public driver_device
{
public:
	psikyo4_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) { }

	/* memory pointers */
	UINT32 *       m_vidregs;
	UINT32 *       m_paletteram;
	UINT32 *       m_ram;
	UINT32 *       m_io_select;
	UINT32 *       m_bgpen_1;
	UINT32 *       m_bgpen_2;
	UINT32 *       m_spriteram;
	size_t         m_spriteram_size;

	/* video-related */
	double         m_oldbrt1;
	double         m_oldbrt2;

	/* devices */
	device_t *m_maincpu;
};


/*----------- defined in video/psikyo4.c -----------*/

VIDEO_START( psikyo4 );
SCREEN_UPDATE( psikyo4 );