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#include "sound/msm5205.h"

class wc90b_state : public driver_device
{
public:
	wc90b_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_audiocpu(*this, "audiocpu"),
		m_msm(*this, "msm"),
		m_gfxdecode(*this, "gfxdecode"),
		m_palette(*this, "palette"),
		m_fgvideoram(*this, "fgvideoram"),
		m_bgvideoram(*this, "bgvideoram"),
		m_txvideoram(*this, "txvideoram"),
		m_scroll1x(*this, "scroll1x"),
		m_scroll2x(*this, "scroll2x"),
		m_scroll1y(*this, "scroll1y"),
		m_scroll2y(*this, "scroll2y"),
		m_scroll_x_lo(*this, "scroll_x_lo"),
		m_spriteram(*this, "spriteram") { }

	required_device<cpu_device> m_maincpu;
	required_device<cpu_device> m_audiocpu;
	required_device<msm5205_device> m_msm;
	required_device<gfxdecode_device> m_gfxdecode;
	required_device<palette_device> m_palette;

	required_shared_ptr<UINT8> m_fgvideoram;
	required_shared_ptr<UINT8> m_bgvideoram;
	required_shared_ptr<UINT8> m_txvideoram;
	required_shared_ptr<UINT8> m_scroll1x;
	required_shared_ptr<UINT8> m_scroll2x;
	required_shared_ptr<UINT8> m_scroll1y;
	required_shared_ptr<UINT8> m_scroll2y;
	required_shared_ptr<UINT8> m_scroll_x_lo;
	required_shared_ptr<UINT8> m_spriteram;

	tilemap_t *m_tx_tilemap;
	tilemap_t *m_fg_tilemap;
	tilemap_t *m_bg_tilemap;
	int m_msm5205next;
	int m_toggle;

	DECLARE_WRITE8_MEMBER(bankswitch_w);
	DECLARE_WRITE8_MEMBER(bankswitch1_w);
	DECLARE_WRITE8_MEMBER(sound_command_w);
	DECLARE_WRITE8_MEMBER(adpcm_data_w);
	DECLARE_WRITE8_MEMBER(bgvideoram_w);
	DECLARE_WRITE8_MEMBER(fgvideoram_w);
	DECLARE_WRITE8_MEMBER(txvideoram_w);
	DECLARE_WRITE8_MEMBER(adpcm_control_w);
	DECLARE_WRITE_LINE_MEMBER(adpcm_int);

	TILE_GET_INFO_MEMBER(get_bg_tile_info);
	TILE_GET_INFO_MEMBER(get_fg_tile_info);
	TILE_GET_INFO_MEMBER(get_tx_tile_info);

	virtual void machine_start();
	virtual void video_start();

	UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, int priority );
};