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// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria
class digdug_state : public galaga_state
{
public:
digdug_state(const machine_config &mconfig, device_type type, const char *tag)
: galaga_state(mconfig, type, tag),
m_digdug_objram(*this, "digdug_objram"),
m_digdug_posram(*this, "digdug_posram"),
m_digdug_flpram(*this, "digdug_flpram") { }
required_shared_ptr<uint8_t> m_digdug_objram;
required_shared_ptr<uint8_t> m_digdug_posram;
required_shared_ptr<uint8_t> m_digdug_flpram;
uint8_t m_bg_select;
uint8_t m_tx_color_mode;
uint8_t m_bg_disable;
uint8_t m_bg_color_bank;
DECLARE_CUSTOM_INPUT_MEMBER(shifted_port_r);
TILEMAP_MAPPER_MEMBER(tilemap_scan);
TILE_GET_INFO_MEMBER(bg_get_tile_info);
TILE_GET_INFO_MEMBER(tx_get_tile_info);
DECLARE_VIDEO_START(digdug);
DECLARE_PALETTE_INIT(digdug);
uint32_t screen_update_digdug(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE8_MEMBER(digdug_videoram_w);
DECLARE_WRITE8_MEMBER(bg_select_w);
DECLARE_WRITE_LINE_MEMBER(tx_color_mode_w);
DECLARE_WRITE_LINE_MEMBER(bg_disable_w);
};
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