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

    Goindol

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

class goindol_state : public driver_device
{
public:
	goindol_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) ,
		m_ram(*this, "ram"),
		m_fg_scrolly(*this, "fg_scrolly"),
		m_fg_scrollx(*this, "fg_scrollx"),
		m_spriteram(*this, "spriteram"),
		m_bg_videoram(*this, "bg_videoram"),
		m_spriteram2(*this, "spriteram2"),
		m_fg_videoram(*this, "fg_videoram"){ }

	/* memory pointers */
	required_shared_ptr<UINT8> m_ram;
	required_shared_ptr<UINT8> m_fg_scrolly;
	required_shared_ptr<UINT8> m_fg_scrollx;
	required_shared_ptr<UINT8> m_spriteram;
	required_shared_ptr<UINT8> m_bg_videoram;
	required_shared_ptr<UINT8> m_spriteram2;
	required_shared_ptr<UINT8> m_fg_videoram;

	/* video-related */
	tilemap_t     *m_bg_tilemap;
	tilemap_t     *m_fg_tilemap;
	UINT16      m_char_bank;

	/* misc */
	int         m_prot_toggle;
	DECLARE_WRITE8_MEMBER(goindol_bankswitch_w);
	DECLARE_READ8_MEMBER(prot_f422_r);
	DECLARE_WRITE8_MEMBER(prot_fc44_w);
	DECLARE_WRITE8_MEMBER(prot_fd99_w);
	DECLARE_WRITE8_MEMBER(prot_fc66_w);
	DECLARE_WRITE8_MEMBER(prot_fcb0_w);
	DECLARE_WRITE8_MEMBER(goindol_fg_videoram_w);
	DECLARE_WRITE8_MEMBER(goindol_bg_videoram_w);
	DECLARE_DRIVER_INIT(goindol);
	TILE_GET_INFO_MEMBER(get_fg_tile_info);
	TILE_GET_INFO_MEMBER(get_bg_tile_info);
	virtual void machine_start();
	virtual void machine_reset();
	virtual void video_start();
	UINT32 screen_update_goindol(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};