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// license:BSD-3-Clause
// copyright-holders:David Haywood, Roberto Fresca
class sderby_state : public driver_device
{
public:
sderby_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_md_videoram(*this, "md_videoram"),
m_fg_videoram(*this, "fg_videoram"),
m_spriteram(*this, "spriteram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
required_shared_ptr<UINT16> m_videoram;
required_shared_ptr<UINT16> m_md_videoram;
required_shared_ptr<UINT16> m_fg_videoram;
required_shared_ptr<UINT16> m_spriteram;
tilemap_t *m_tilemap;
tilemap_t *m_md_tilemap;
tilemap_t *m_fg_tilemap;
UINT16 m_scroll[6];
DECLARE_READ16_MEMBER(sderby_input_r);
DECLARE_READ16_MEMBER(sderbya_input_r);
DECLARE_READ16_MEMBER(roulette_input_r);
DECLARE_READ16_MEMBER(rprot_r);
DECLARE_WRITE16_MEMBER(rprot_w);
DECLARE_WRITE16_MEMBER(sderby_out_w);
DECLARE_WRITE16_MEMBER(scmatto_out_w);
DECLARE_WRITE16_MEMBER(roulette_out_w);
DECLARE_WRITE16_MEMBER(sderby_videoram_w);
DECLARE_WRITE16_MEMBER(sderby_md_videoram_w);
DECLARE_WRITE16_MEMBER(sderby_fg_videoram_w);
DECLARE_WRITE16_MEMBER(sderby_scroll_w);
TILE_GET_INFO_MEMBER(get_sderby_tile_info);
TILE_GET_INFO_MEMBER(get_sderby_md_tile_info);
TILE_GET_INFO_MEMBER(get_sderby_fg_tile_info);
virtual void video_start() override;
UINT32 screen_update_sderby(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
UINT32 screen_update_pmroulet(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect,int codeshift);
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
};
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