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// license:BSD-3-Clause
// copyright-holders:David Haywood, Phil Bennett
/*************************************************************************

    Kyuukoukabakugekitai - Dive Bomber Squad

*************************************************************************/

#include "cpu/z80/z80.h"
#include "sound/sn76496.h"
#include "video/k051316.h"

#define XTAL1 XTAL_24MHz

class divebomb_state : public driver_device
{
public:
	divebomb_state(const machine_config &mconfig, device_type type, const char *tag)
	: driver_device(mconfig, type, tag),
	m_spritecpu(*this, "spritecpu"),
	m_fgcpu(*this, "fgcpu"),
	m_rozcpucpu(*this, "rozcpu"),
	m_bank1(*this, "bank1"),
	m_fgram(*this, "fgram"),
	m_spriteram(*this, "spriteram"),
	m_gfxdecode(*this, "gfxdecode"),
	m_palette(*this, "palette"),
	m_k051316_1(*this, "k051316_1"),
	m_k051316_2(*this, "k051316_2")
	{ }

	required_device<cpu_device> m_spritecpu;
	required_device<cpu_device> m_fgcpu;
	required_device<cpu_device> m_rozcpucpu;
	required_memory_bank m_bank1;
	required_shared_ptr<UINT8> m_fgram;
	required_shared_ptr<UINT8> m_spriteram;
	required_device<gfxdecode_device> m_gfxdecode;
	required_device<palette_device> m_palette;
	required_device<k051316_device> m_k051316_1;
	required_device<k051316_device> m_k051316_2;

	tilemap_t *m_fg_tilemap;
	UINT8 to_spritecpu;
	UINT8 to_rozcpu;
	UINT8 from_sprite;
	UINT8 from_roz;
	bool has_fromsprite;
	bool has_fromroz;

	UINT8 roz_pal;
	bool roz1_enable;
	bool roz2_enable;
	bool roz1_wrap;
	bool roz2_wrap;

	DECLARE_MACHINE_RESET(divebomb);
	DECLARE_MACHINE_START(divebomb);
	DECLARE_VIDEO_START(divebomb);
	DECLARE_PALETTE_INIT(divebomb);

	void update_irqs();
	void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
	void decode_proms(const UINT8* rgn, int size, int index, bool inv);
	UINT32 screen_update_divebomb(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);

	K051316_CB_MEMBER(zoom_callback_1);
	K051316_CB_MEMBER(zoom_callback_2);

	TILE_GET_INFO_MEMBER(get_fg_tile_info);

	DECLARE_READ8_MEMBER(fgcpu_roz_comm_r);
	DECLARE_WRITE8_MEMBER(fgcpu_roz_comm_w);
	DECLARE_READ8_MEMBER(fgcpu_spr_comm_r);
	DECLARE_WRITE8_MEMBER(fgcpu_spr_comm_w);
	DECLARE_READ8_MEMBER(fgcpu_comm_flags_r);
	DECLARE_WRITE8_MEMBER(fgram_w);

	DECLARE_WRITE8_MEMBER(spritecpu_port00_w);
	DECLARE_READ8_MEMBER(spritecpu_comm_r);
	DECLARE_WRITE8_MEMBER(spritecpu_comm_w);

	DECLARE_WRITE8_MEMBER(rozcpu_bank_w);
	DECLARE_WRITE8_MEMBER(rozcpu_wrap1_enable_w);
	DECLARE_WRITE8_MEMBER(rozcpu_enable1_w);
	DECLARE_WRITE8_MEMBER(rozcpu_enable2_w);
	DECLARE_WRITE8_MEMBER(rozcpu_wrap2_enable_w);
	DECLARE_READ8_MEMBER(rozcpu_comm_r);
	DECLARE_WRITE8_MEMBER(rozcpu_comm_w);
	DECLARE_WRITE8_MEMBER(rozcpu_pal_w);
};