// license:BSD-3-Clause // copyright-holders:Chris Hardy /************************************************************************* Megazone *************************************************************************/ class megazone_state : public driver_device { public: megazone_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_scrolly(*this, "scrolly"), m_scrollx(*this, "scrollx"), m_videoram(*this, "videoram"), m_videoram2(*this, "videoram2"), m_colorram(*this, "colorram"), m_colorram2(*this, "colorram2"), m_spriteram(*this, "spriteram"), m_maincpu(*this, "maincpu"), m_audiocpu(*this, "audiocpu"), m_daccpu(*this, "daccpu"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } /* memory pointers */ required_shared_ptr m_scrolly; required_shared_ptr m_scrollx; required_shared_ptr m_videoram; required_shared_ptr m_videoram2; required_shared_ptr m_colorram; required_shared_ptr m_colorram2; required_shared_ptr m_spriteram; /* video-related */ std::unique_ptr m_tmpbitmap; int m_flipscreen; /* misc */ int m_i8039_status; /* devices */ required_device m_maincpu; required_device m_audiocpu; required_device m_daccpu; required_device m_gfxdecode; required_device m_palette; UINT8 m_irq_mask; DECLARE_WRITE8_MEMBER(megazone_i8039_irq_w); DECLARE_WRITE8_MEMBER(i8039_irqen_and_status_w); DECLARE_WRITE8_MEMBER(megazone_coin_counter_w); DECLARE_WRITE8_MEMBER(irq_mask_w); DECLARE_WRITE8_MEMBER(megazone_flipscreen_w); DECLARE_READ8_MEMBER(megazone_port_a_r); DECLARE_WRITE8_MEMBER(megazone_port_b_w); DECLARE_DRIVER_INIT(megazone); virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; DECLARE_PALETTE_INIT(megazone); UINT32 screen_update_megazone(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); INTERRUPT_GEN_MEMBER(vblank_irq); };