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

    Atari Asteroids hardware

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

#include "sound/discrete.h"

class asteroid_state : public driver_device
{
public:
	asteroid_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) ,
		m_ram1(*this, "ram1"),
		m_ram2(*this, "ram2"){ }

	optional_shared_ptr<UINT8> m_ram1;
	optional_shared_ptr<UINT8> m_ram2;
	DECLARE_WRITE8_MEMBER(astdelux_coin_counter_w);
	DECLARE_WRITE8_MEMBER(llander_led_w);
	DECLARE_READ8_MEMBER(asteroid_IN0_r);
	DECLARE_READ8_MEMBER(asterock_IN0_r);
	DECLARE_READ8_MEMBER(asteroid_IN1_r);
	DECLARE_READ8_MEMBER(asteroid_DSW1_r);
	DECLARE_WRITE8_MEMBER(asteroid_bank_switch_w);
	DECLARE_WRITE8_MEMBER(astdelux_bank_switch_w);
	DECLARE_WRITE8_MEMBER(astdelux_led_w);
	DECLARE_CUSTOM_INPUT_MEMBER(clock_r);
	DECLARE_DRIVER_INIT(asterock);
	DECLARE_DRIVER_INIT(asteroidb);
	virtual void machine_reset();
};


/*----------- defined in machine/asteroid.c -----------*/

INTERRUPT_GEN( asteroid_interrupt );
INTERRUPT_GEN( asterock_interrupt );
INTERRUPT_GEN( llander_interrupt );


/*----------- defined in audio/asteroid.c -----------*/

DISCRETE_SOUND_EXTERN( asteroid );
DISCRETE_SOUND_EXTERN( astdelux );

DECLARE_WRITE8_DEVICE_HANDLER( asteroid_explode_w );
DECLARE_WRITE8_DEVICE_HANDLER( asteroid_thump_w );
DECLARE_WRITE8_DEVICE_HANDLER( asteroid_sounds_w );
DECLARE_WRITE8_DEVICE_HANDLER( asteroid_noise_reset_w );
DECLARE_WRITE8_DEVICE_HANDLER( astdelux_sounds_w );


/*----------- defined in audio/llander.c -----------*/

DISCRETE_SOUND_EXTERN( llander );

DECLARE_WRITE8_DEVICE_HANDLER( llander_snd_reset_w );
DECLARE_WRITE8_DEVICE_HANDLER( llander_sounds_w );