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/***************************************************************************
Blomby Car
***************************************************************************/
class blmbycar_state : public driver_device
{
public:
blmbycar_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_vram_1(*this, "vram_1"),
m_vram_0(*this, "vram_0"),
m_scroll_1(*this, "scroll_1"),
m_scroll_0(*this, "scroll_0"),
m_paletteram(*this, "paletteram"),
m_spriteram(*this, "spriteram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode") { }
/* memory pointers */
required_shared_ptr<UINT16> m_vram_1;
required_shared_ptr<UINT16> m_vram_0;
required_shared_ptr<UINT16> m_scroll_1;
required_shared_ptr<UINT16> m_scroll_0;
required_shared_ptr<UINT16> m_paletteram;
required_shared_ptr<UINT16> m_spriteram;
/* video-related */
tilemap_t *m_tilemap_0;
tilemap_t *m_tilemap_1;
/* input-related */
UINT8 m_pot_wheel; // blmbycar
int m_old_val; // blmbycar
int m_retvalue; // waterball
DECLARE_WRITE16_MEMBER(blmbycar_okibank_w);
DECLARE_WRITE16_MEMBER(blmbycar_pot_wheel_reset_w);
DECLARE_WRITE16_MEMBER(blmbycar_pot_wheel_shift_w);
DECLARE_READ16_MEMBER(blmbycar_pot_wheel_r);
DECLARE_READ16_MEMBER(blmbycar_opt_wheel_r);
DECLARE_READ16_MEMBER(waterball_unk_r);
DECLARE_WRITE16_MEMBER(blmbycar_palette_w);
DECLARE_WRITE16_MEMBER(blmbycar_vram_0_w);
DECLARE_WRITE16_MEMBER(blmbycar_vram_1_w);
DECLARE_DRIVER_INIT(blmbycar);
TILE_GET_INFO_MEMBER(get_tile_info_0);
TILE_GET_INFO_MEMBER(get_tile_info_1);
virtual void video_start();
DECLARE_MACHINE_START(blmbycar);
DECLARE_MACHINE_RESET(blmbycar);
DECLARE_MACHINE_START(watrball);
DECLARE_MACHINE_RESET(watrball);
UINT32 screen_update_blmbycar(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect );
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
};
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