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

    Competition Golf Final Round

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

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

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

	/* video-related */
	tilemap_t        *m_text_tilemap;
	tilemap_t        *m_bg_tilemap;
	int            m_scrollx_lo;
	int            m_scrollx_hi;
	int            m_scrolly_lo;
	int            m_scrolly_hi;

	/* misc */
	int            m_bank;
	DECLARE_WRITE8_MEMBER(compgolf_ctrl_w);
	DECLARE_WRITE8_MEMBER(compgolf_video_w);
	DECLARE_WRITE8_MEMBER(compgolf_back_w);
	DECLARE_WRITE8_MEMBER(compgolf_scrollx_lo_w);
	DECLARE_WRITE8_MEMBER(compgolf_scrolly_lo_w);
	DECLARE_DRIVER_INIT(compgolf);
	TILE_GET_INFO_MEMBER(get_text_info);
	TILEMAP_MAPPER_MEMBER(back_scan);
	TILE_GET_INFO_MEMBER(get_back_info);
	virtual void machine_start();
	virtual void machine_reset();
	virtual void video_start();
	virtual void palette_init();
};


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



SCREEN_UPDATE_IND16( compgolf );