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class spdodgeb_state : public driver_device
{
public:
spdodgeb_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_maincpu(*this,"maincpu"){ }
int m_toggle;
int m_adpcm_pos[2];
int m_adpcm_end[2];
int m_adpcm_idle[2];
int m_adpcm_data[2];
int m_mcu63701_command;
int m_inputs[4];
UINT8 m_tapc[4];
UINT8 m_last_port[2];
UINT8 m_last_dash[2];
#if 0
int m_running[2];
int m_jumped[2];
int m_prev[2][2];
int m_countup[2][2];
int m_countdown[2][2];
int m_prev[2];
#endif
required_shared_ptr<UINT8> m_videoram;
int m_tile_palbank;
int m_sprite_palbank;
tilemap_t *m_bg_tilemap;
int m_lastscroll;
required_shared_ptr<UINT8> m_spriteram;
required_device<cpu_device> m_maincpu;
DECLARE_WRITE8_MEMBER(sound_command_w);
DECLARE_WRITE8_MEMBER(spd_adpcm_w);
DECLARE_READ8_MEMBER(mcu63701_r);
DECLARE_WRITE8_MEMBER(mcu63701_w);
DECLARE_READ8_MEMBER(port_0_r);
DECLARE_WRITE8_MEMBER(spdodgeb_scrollx_lo_w);
DECLARE_WRITE8_MEMBER(spdodgeb_ctrl_w);
DECLARE_WRITE8_MEMBER(spdodgeb_videoram_w);
TILEMAP_MAPPER_MEMBER(background_scan);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
UINT32 screen_update_spdodgeb(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};
TIMER_DEVICE_CALLBACK( spdodgeb_interrupt );
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