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class travrusa_state : public driver_device
{
public:
travrusa_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_videoram(*this, "videoram"),
m_spriteram(*this, "spriteram"){ }
/* memory pointers */
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
tilemap_t* m_bg_tilemap;
int m_scrollx[2];
DECLARE_WRITE8_MEMBER(travrusa_videoram_w);
DECLARE_WRITE8_MEMBER(travrusa_scroll_x_low_w);
DECLARE_WRITE8_MEMBER(travrusa_scroll_x_high_w);
DECLARE_WRITE8_MEMBER(travrusa_flipscreen_w);
DECLARE_DRIVER_INIT(shtridra);
DECLARE_DRIVER_INIT(motorace);
TILE_GET_INFO_MEMBER(get_tile_info);
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
DECLARE_PALETTE_INIT(shtrider);
UINT32 screen_update_travrusa(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};
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