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path: root/src/mame/includes/mexico86.h
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// license:BSD-3-Clause
// copyright-holders:Ernesto Corvi

#include "cpu/m6805/m68705.h"

#include "sound/2203intf.h"


class mexico86_state : public driver_device
{
public:
	mexico86_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_protection_ram(*this, "protection_ram"),
		m_mainram(*this, "mainram"),
		m_maincpu(*this, "maincpu"),
		m_audiocpu(*this, "audiocpu"),
		m_subcpu(*this, "sub"),
		m_mcu(*this, "mcu"),
		m_ymsnd(*this, "ymsnd"),
		m_gfxdecode(*this, "gfxdecode"),
		m_palette(*this, "palette")
	{
	}

	/* memory pointers */
	required_shared_ptr<u8> m_protection_ram;
	required_shared_ptr<u8> m_mainram;

	/* video-related */
	int      m_charbank;

	/* mcu */
	/* mexico86 68705 protection */
	u8       m_port_a_out;
	u8       m_port_b_out;
	int      m_address;
	u8       m_latch;
	/* kikikai mcu simulation */
	int      m_mcu_running;
	int      m_mcu_initialised;
	bool     m_coin_last[2];
	u8       m_coin_fract;

	/* devices */
	required_device<cpu_device>         m_maincpu;
	required_device<cpu_device>         m_audiocpu;
	optional_device<cpu_device>         m_subcpu;
	optional_device<m68705p_device>     m_mcu;
	required_device<ym2203_device>      m_ymsnd;
	required_device<gfxdecode_device>   m_gfxdecode;
	required_device<palette_device>     m_palette;

	/* queue */
	u8 m_queue[64];
	int m_qfront;
	int m_qstate;
	DECLARE_WRITE8_MEMBER(mexico86_sub_output_w);
	DECLARE_WRITE8_MEMBER(mexico86_f008_w);
	DECLARE_WRITE8_MEMBER(mexico86_68705_port_a_w);
	DECLARE_WRITE8_MEMBER(mexico86_68705_port_b_w);
	DECLARE_WRITE8_MEMBER(mexico86_bankswitch_w);
	DECLARE_READ8_MEMBER(kiki_ym2203_r);
	virtual void machine_start() override;
	virtual void machine_reset() override;
	u32 screen_update_mexico86(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	u32 screen_update_kikikai(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	INTERRUPT_GEN_MEMBER(kikikai_interrupt);
	INTERRUPT_GEN_MEMBER(mexico86_m68705_interrupt);
	void mcu_simulate(  );
	bool mcu_coin_counter_w(bool condition);
	void knightb(machine_config &config);
	void mexico86(machine_config &config);
	void kikikai(machine_config &config);
	void mexico86_map(address_map &map);
	void mexico86_sound_map(address_map &map);
	void mexico86_sub_cpu_map(address_map &map);
};