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

    Ghosts'n Goblins

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

#include "video/bufsprite.h"

class gng_state : public driver_device
{
public:
	gng_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		  m_spriteram(*this, "spriteram") { }

	/* memory pointers */
	UINT8 *    m_bgvideoram;
	UINT8 *    m_fgvideoram;
//  UINT8 *    m_paletteram;  // currently this uses generic palette handling
//  UINT8 *    m_paletteram2; // currently this uses generic palette handling

	/* video-related */
	tilemap_t    *m_bg_tilemap;
	tilemap_t    *m_fg_tilemap;
	UINT8      m_scrollx[2];
	UINT8      m_scrolly[2];

	required_device<buffered_spriteram8_device> m_spriteram;
};


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

WRITE8_HANDLER( gng_fgvideoram_w );
WRITE8_HANDLER( gng_bgvideoram_w );
WRITE8_HANDLER( gng_bgscrollx_w );
WRITE8_HANDLER( gng_bgscrolly_w );
WRITE8_HANDLER( gng_flipscreen_w );

VIDEO_START( gng );
SCREEN_UPDATE_IND16( gng );