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/*************************************************************************
Gun.Smoke
*************************************************************************/
class gunsmoke_state : public driver_device
{
public:
gunsmoke_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_videoram(*this, "videoram"),
m_colorram(*this, "colorram"),
m_scrollx(*this, "scrollx"),
m_scrolly(*this, "scrolly"),
m_spriteram(*this, "spriteram"){ }
/* memory pointers */
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_colorram;
required_shared_ptr<UINT8> m_scrollx;
required_shared_ptr<UINT8> m_scrolly;
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
UINT8 m_chon;
UINT8 m_objon;
UINT8 m_bgon;
UINT8 m_sprite3bank;
DECLARE_READ8_MEMBER(gunsmoke_protection_r);
DECLARE_WRITE8_MEMBER(gunsmoke_videoram_w);
DECLARE_WRITE8_MEMBER(gunsmoke_colorram_w);
DECLARE_WRITE8_MEMBER(gunsmoke_c804_w);
DECLARE_WRITE8_MEMBER(gunsmoke_d806_w);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
UINT32 screen_update_gunsmoke(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
};
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