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// license:BSD-3-Clause
// copyright-holders:Carlos A. Lozano, Rob Rosenbrock, Phil Stroffolino
class xain_state : public driver_device
{
public:
xain_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_subcpu(*this, "sub"),
m_mcu(*this, "mcu"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette"),
m_charram(*this, "charram"),
m_bgram0(*this, "bgram0"),
m_bgram1(*this, "bgram1"),
m_spriteram(*this, "spriteram") { }
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_device<cpu_device> m_subcpu;
optional_device<cpu_device> m_mcu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
required_shared_ptr<UINT8> m_charram;
required_shared_ptr<UINT8> m_bgram0;
required_shared_ptr<UINT8> m_bgram1;
required_shared_ptr<UINT8> m_spriteram;
int m_vblank;
int m_from_main;
int m_from_mcu;
UINT8 m_ddr_a;
UINT8 m_ddr_b;
UINT8 m_ddr_c;
UINT8 m_port_a_out;
UINT8 m_port_b_out;
UINT8 m_port_c_out;
UINT8 m_port_a_in;
UINT8 m_port_b_in;
UINT8 m_port_c_in;
int m_mcu_ready;
int m_mcu_accept;
UINT8 m_pri;
tilemap_t *m_char_tilemap;
tilemap_t *m_bgram0_tilemap;
tilemap_t *m_bgram1_tilemap;
UINT8 m_scrollxP0[2];
UINT8 m_scrollyP0[2];
UINT8 m_scrollxP1[2];
UINT8 m_scrollyP1[2];
DECLARE_WRITE8_MEMBER(cpuA_bankswitch_w);
DECLARE_WRITE8_MEMBER(cpuB_bankswitch_w);
DECLARE_WRITE8_MEMBER(sound_command_w);
DECLARE_WRITE8_MEMBER(main_irq_w);
DECLARE_WRITE8_MEMBER(irqA_assert_w);
DECLARE_WRITE8_MEMBER(irqB_clear_w);
DECLARE_READ8_MEMBER(m68705_r);
DECLARE_WRITE8_MEMBER(m68705_w);
DECLARE_READ8_MEMBER(m68705_port_a_r);
DECLARE_WRITE8_MEMBER(m68705_port_a_w);
DECLARE_WRITE8_MEMBER(m68705_ddr_a_w);
DECLARE_READ8_MEMBER(m68705_port_b_r);
DECLARE_WRITE8_MEMBER(m68705_port_b_w);
DECLARE_WRITE8_MEMBER(m68705_ddr_b_w);
DECLARE_READ8_MEMBER(m68705_port_c_r);
DECLARE_WRITE8_MEMBER(m68705_port_c_w);
DECLARE_WRITE8_MEMBER(m68705_ddr_c_w);
DECLARE_READ8_MEMBER(mcu_comm_reset_r);
DECLARE_WRITE8_MEMBER(bgram0_w);
DECLARE_WRITE8_MEMBER(bgram1_w);
DECLARE_WRITE8_MEMBER(charram_w);
DECLARE_WRITE8_MEMBER(scrollxP0_w);
DECLARE_WRITE8_MEMBER(scrollyP0_w);
DECLARE_WRITE8_MEMBER(scrollxP1_w);
DECLARE_WRITE8_MEMBER(scrollyP1_w);
DECLARE_WRITE8_MEMBER(flipscreen_w);
DECLARE_CUSTOM_INPUT_MEMBER(vblank_r);
DECLARE_CUSTOM_INPUT_MEMBER(mcu_status_r);
TILEMAP_MAPPER_MEMBER(back_scan);
TILE_GET_INFO_MEMBER(get_bgram0_tile_info);
TILE_GET_INFO_MEMBER(get_bgram1_tile_info);
TILE_GET_INFO_MEMBER(get_char_tile_info);
virtual void machine_start() override;
virtual void video_start() override;
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect);
inline int scanline_to_vcount(int scanline);
TIMER_DEVICE_CALLBACK_MEMBER(scanline);
};
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