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// license:BSD-3-Clause
// copyright-holders:Mike Balfour
#include "screen.h"

class runaway_state : public driver_device
{
public:
	runaway_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag)
		, m_video_ram(*this, "video_ram")
		, m_sprite_ram(*this, "sprite_ram")
		, m_maincpu(*this, "maincpu")
		, m_gfxdecode(*this, "gfxdecode")
		, m_screen(*this, "screen")
		, m_palette(*this, "palette")
		, m_leds(*this, "led%u", 0U)
	{ }

	DECLARE_READ8_MEMBER(runaway_input_r);
	DECLARE_WRITE8_MEMBER(runaway_led_w);
	DECLARE_WRITE8_MEMBER(runaway_irq_ack_w);
	DECLARE_WRITE8_MEMBER(runaway_paletteram_w);
	DECLARE_WRITE8_MEMBER(runaway_video_ram_w);
	DECLARE_WRITE8_MEMBER(runaway_tile_bank_w);
	DECLARE_READ8_MEMBER(runaway_pot_r);
	TILE_GET_INFO_MEMBER(runaway_get_tile_info);
	TILE_GET_INFO_MEMBER(qwak_get_tile_info);
	DECLARE_VIDEO_START(qwak);
	uint32_t screen_update_runaway(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	uint32_t screen_update_qwak(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	TIMER_CALLBACK_MEMBER(interrupt_callback);
	void qwak(machine_config &config);
	void runaway(machine_config &config);
	void runaway_map(address_map &map);

protected:
	virtual void machine_start() override;
	virtual void machine_reset() override;
	virtual void video_start() override;

	emu_timer *m_interrupt_timer;
	required_shared_ptr<uint8_t> m_video_ram;
	required_shared_ptr<uint8_t> m_sprite_ram;
	tilemap_t *m_bg_tilemap;
	int m_tile_bank;
	required_device<cpu_device> m_maincpu;
	required_device<gfxdecode_device> m_gfxdecode;
	required_device<screen_device> m_screen;
	required_device<palette_device> m_palette;
	output_finder<2> m_leds;
};