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// license:BSD-3-Clause
// copyright-holders:David Haywood
/***************************************************************************
Battle Cross
***************************************************************************/
class battlex_state : public driver_device
{
public:
battlex_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_spriteram(*this, "spriteram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
UINT8 m_in0_b4;
/* memory pointers */
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
tilemap_t *m_bg_tilemap;
UINT8 m_scroll_lsb;
UINT8 m_scroll_msb;
UINT8 m_starfield_enabled;
DECLARE_WRITE8_MEMBER(battlex_palette_w);
DECLARE_WRITE8_MEMBER(battlex_scroll_x_lsb_w);
DECLARE_WRITE8_MEMBER(battlex_scroll_x_msb_w);
DECLARE_WRITE8_MEMBER(battlex_scroll_starfield_w);
DECLARE_WRITE8_MEMBER(battlex_videoram_w);
DECLARE_WRITE8_MEMBER(battlex_flipscreen_w);
DECLARE_CUSTOM_INPUT_MEMBER(battlex_in0_b4_r);
DECLARE_DRIVER_INIT(battlex);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
UINT32 screen_update_battlex(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(battlex_interrupt);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
};
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