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class lkage_state : public driver_device
{
public:
lkage_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_vreg(*this, "vreg"),
m_scroll(*this, "scroll"),
m_spriteram(*this, "spriteram"),
m_videoram(*this, "videoram"){ }
required_shared_ptr<UINT8> m_vreg;
required_shared_ptr<UINT8> m_scroll;
required_shared_ptr<UINT8> m_spriteram;
required_shared_ptr<UINT8> m_videoram;
// UINT8 * m_paletteram; // currently this uses generic palette handling
/* video-related */
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
tilemap_t *m_tx_tilemap;
UINT8 m_bg_tile_bank;
UINT8 m_fg_tile_bank;
UINT8 m_tx_tile_bank;
int m_sprite_dx;
/* misc */
int m_sound_nmi_enable;
int m_pending_nmi;
/* mcu */
UINT8 m_from_main;
UINT8 m_from_mcu;
int m_mcu_sent;
int m_main_sent;
UINT8 m_port_a_in;
UINT8 m_port_a_out;
UINT8 m_ddr_a;
UINT8 m_port_b_in;
UINT8 m_port_b_out;
UINT8 m_ddr_b;
UINT8 m_port_c_in;
UINT8 m_port_c_out;
UINT8 m_ddr_c;
/* lkageb fake mcu */
UINT8 m_mcu_val;
int m_mcu_ready; /* cpu data/mcu ready status */
/* devices */
cpu_device *m_maincpu;
cpu_device *m_audiocpu;
device_t *m_mcu;
DECLARE_WRITE8_MEMBER(lkage_sound_command_w);
DECLARE_WRITE8_MEMBER(lkage_sh_nmi_disable_w);
DECLARE_WRITE8_MEMBER(lkage_sh_nmi_enable_w);
DECLARE_READ8_MEMBER(sound_status_r);
DECLARE_READ8_MEMBER(port_fetch_r);
DECLARE_READ8_MEMBER(fake_mcu_r);
DECLARE_WRITE8_MEMBER(fake_mcu_w);
DECLARE_READ8_MEMBER(fake_status_r);
DECLARE_READ8_MEMBER(lkage_68705_port_a_r);
DECLARE_WRITE8_MEMBER(lkage_68705_port_a_w);
DECLARE_WRITE8_MEMBER(lkage_68705_ddr_a_w);
DECLARE_READ8_MEMBER(lkage_68705_port_b_r);
DECLARE_WRITE8_MEMBER(lkage_68705_port_b_w);
DECLARE_WRITE8_MEMBER(lkage_68705_ddr_b_w);
DECLARE_READ8_MEMBER(lkage_68705_port_c_r);
DECLARE_WRITE8_MEMBER(lkage_68705_port_c_w);
DECLARE_WRITE8_MEMBER(lkage_68705_ddr_c_w);
DECLARE_WRITE8_MEMBER(lkage_mcu_w);
DECLARE_READ8_MEMBER(lkage_mcu_r);
DECLARE_READ8_MEMBER(lkage_mcu_status_r);
DECLARE_WRITE8_MEMBER(lkage_videoram_w);
DECLARE_DRIVER_INIT(bygone);
DECLARE_DRIVER_INIT(lkage);
DECLARE_DRIVER_INIT(lkageb);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
TILE_GET_INFO_MEMBER(get_tx_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
UINT32 screen_update_lkage(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_CALLBACK_MEMBER(nmi_callback);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
};
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