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

    Ghosts'n Goblins

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

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

	/* 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
//  UINT8 *    m_spriteram;   // currently this uses generic buffered spriteram

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


/*----------- 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 );
SCREEN_VBLANK( gng );
