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/*************************************************************************
Atari Tetris hardware
*************************************************************************/
class atetris_state : public driver_device
{
public:
atetris_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_nvram(*this, "nvram") { }
required_shared_ptr<UINT8> m_nvram;
UINT8 *m_videoram;
UINT8 *m_slapstic_source;
UINT8 *m_slapstic_base;
UINT8 m_current_bank;
UINT8 m_nvram_write_enable;
emu_timer *m_interrupt_timer;
tilemap_t *m_bg_tilemap;
};
/*----------- defined in video/atetris.c -----------*/
VIDEO_START( atetris );
SCREEN_UPDATE( atetris );
WRITE8_HANDLER( atetris_videoram_w );
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