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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
/**********************************************************************
Sega SG-1000/Mark-III/SMS "Rapid Fire Unit" emulation
**********************************************************************/
#ifndef MAME_BUS_SMS_CTRL_RFU_H
#define MAME_BUS_SMS_CTRL_RFU_H
#pragma once
#include "smsctrl.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> sms_rapid_fire_device
class sms_rapid_fire_device : public device_t,
public device_sms_control_port_interface
{
public:
// construction/destruction
sms_rapid_fire_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
// optional information overrides
virtual ioport_constructor device_input_ports() const override;
virtual void device_add_mconfig(machine_config &config) override;
// device_sms_control_port_interface overrides
virtual uint8_t peripheral_r() override;
virtual void peripheral_w(uint8_t data) override;
private:
DECLARE_WRITE_LINE_MEMBER(th_pin_w);
required_ioport m_rfire_sw;
required_device<sms_control_port_device> m_subctrl_port;
uint8_t m_read_state;
attotime m_start_time;
const attotime m_interval;
};
// device type definition
DECLARE_DEVICE_TYPE(SMS_RAPID_FIRE, sms_rapid_fire_device)
#endif // MAME_BUS_SMS_CTRL_RFU_H
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