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/*************************************************************************
Skyfox
*************************************************************************/
class skyfox_state : public driver_device
{
public:
skyfox_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_spriteram(*this, "spriteram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode") { }
/* memory pointers */
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
UINT8 m_vreg[8];
int m_bg_pos;
int m_bg_ctrl;
/* misc */
int m_palette_selected;
/* devices */
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
DECLARE_READ8_MEMBER(skyfox_vregs_r);
DECLARE_WRITE8_MEMBER(skyfox_vregs_w);
DECLARE_INPUT_CHANGED_MEMBER(coin_inserted);
DECLARE_DRIVER_INIT(skyfox);
virtual void machine_start();
virtual void machine_reset();
DECLARE_PALETTE_INIT(skyfox);
UINT32 screen_update_skyfox(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(skyfox_interrupt);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
void draw_background(bitmap_ind16 &bitmap, const rectangle &cliprect);
};
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