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

    Markham

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

class markham_state : public driver_device
{
public:
	markham_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) ,
		m_spriteram(*this, "spriteram"),
		m_videoram(*this, "videoram"),
		m_xscroll(*this, "xscroll"){ }

	/* memory pointers */
	required_shared_ptr<UINT8> m_spriteram;
	required_shared_ptr<UINT8> m_videoram;
	required_shared_ptr<UINT8> m_xscroll;

	/* video-related */
	tilemap_t  *m_bg_tilemap;
	DECLARE_READ8_MEMBER(markham_e004_r);
	DECLARE_WRITE8_MEMBER(markham_videoram_w);
	DECLARE_WRITE8_MEMBER(markham_flipscreen_w);
	TILE_GET_INFO_MEMBER(get_bg_tile_info);
	virtual void video_start();
	virtual void palette_init();
};


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




SCREEN_UPDATE_IND16( markham );