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

	UINT16 *m_videoram;
	UINT16 *m_shared_ram;
	UINT16 *m_back_data;
	UINT16 *m_fore_data;
	UINT16 *m_scroll_ram;
	tilemap_t *m_bg_layer;
	tilemap_t *m_fg_layer;
	tilemap_t *m_tx_layer;
	int m_flipscreen;
	int m_alternate;
};


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

WRITE16_HANDLER( raiden_background_w );
WRITE16_HANDLER( raiden_foreground_w );
WRITE16_HANDLER( raiden_text_w );
VIDEO_START( raiden );
VIDEO_START( raidena );
WRITE16_HANDLER( raiden_control_w );
WRITE16_HANDLER( raidena_control_w );
SCREEN_UPDATE( raiden );
