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// license:BSD-3-Clause
// copyright-holders:David Haywood, Tomasz Slanina
class mainsnk_state : public driver_device
{
public:
mainsnk_state(const machine_config &mconfig, device_type type, std::string tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette"),
m_bgram(*this, "bgram"),
m_spriteram(*this, "spriteram"),
m_fgram(*this, "fgram") { }
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
required_shared_ptr<UINT8> m_bgram;
required_shared_ptr<UINT8> m_spriteram;
required_shared_ptr<UINT8> m_fgram;
tilemap_t *m_tx_tilemap;
tilemap_t *m_bg_tilemap;
int m_sound_cpu_busy;
UINT32 m_bg_tile_offset;
DECLARE_WRITE8_MEMBER(sound_command_w);
DECLARE_READ8_MEMBER(sound_ack_r);
DECLARE_WRITE8_MEMBER(c600_w);
DECLARE_WRITE8_MEMBER(fgram_w);
DECLARE_WRITE8_MEMBER(bgram_w);
DECLARE_CUSTOM_INPUT_MEMBER(sound_r);
TILEMAP_MAPPER_MEMBER(marvins_tx_scan_cols);
TILE_GET_INFO_MEMBER(get_tx_tile_info);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void machine_start() override;
virtual void video_start() override;
DECLARE_PALETTE_INIT(mainsnk);
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, int scrollx, int scrolly );
};
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