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class m58_state : public driver_device
{
public:
m58_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_spriteram(*this, "spriteram"),
m_yard_scroll_x_low(*this, "scroll_x_low"),
m_yard_scroll_x_high(*this, "scroll_x_high"),
m_yard_scroll_y_low(*this, "scroll_y_low"),
m_yard_score_panel_disabled(*this, "score_disable"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode") { }
/* memory pointers */
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
tilemap_t* m_bg_tilemap;
required_shared_ptr<UINT8> m_yard_scroll_x_low;
required_shared_ptr<UINT8> m_yard_scroll_x_high;
required_shared_ptr<UINT8> m_yard_scroll_y_low;
required_shared_ptr<UINT8> m_yard_score_panel_disabled;
bitmap_ind16 *m_scroll_panel_bitmap;
DECLARE_WRITE8_MEMBER(yard_videoram_w);
DECLARE_WRITE8_MEMBER(yard_scroll_panel_w);
DECLARE_WRITE8_MEMBER(yard_flipscreen_w);
DECLARE_DRIVER_INIT(yard85);
TILE_GET_INFO_MEMBER(yard_get_bg_tile_info);
TILEMAP_MAPPER_MEMBER(yard_tilemap_scan_rows);
virtual void video_start();
DECLARE_PALETTE_INIT(m58);
UINT32 screen_update_yard(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect );
void draw_panel( bitmap_ind16 &bitmap, const rectangle &cliprect );
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
};
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