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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 2031 Single Disk Drive emulation
**********************************************************************/
#pragma once
#ifndef __C2031__
#define __C2031__
#include "emu.h"
#include "ieee488.h"
#include "cpu/m6502/m6502.h"
#include "machine/64h156.h"
#include "machine/6522via.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c2031_device
class c2031_device : public device_t,
public device_ieee488_interface
{
public:
// construction/destruction
c2031_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
virtual ioport_constructor device_input_ports() const;
DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
DECLARE_READ8_MEMBER( via0_pa_r );
DECLARE_WRITE8_MEMBER( via0_pa_w );
DECLARE_READ8_MEMBER( via0_pb_r );
DECLARE_WRITE8_MEMBER( via0_pb_w );
DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
DECLARE_READ8_MEMBER( via1_pb_r );
DECLARE_WRITE8_MEMBER( via1_pb_w );
DECLARE_WRITE_LINE_MEMBER( byte_w );
DECLARE_FLOPPY_FORMATS( floppy_formats );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_ieee488_interface overrides
virtual void ieee488_atn(int state);
virtual void ieee488_ifc(int state);
inline int get_device_number();
required_device<cpu_device> m_maincpu;
required_device<via6522_device> m_via0;
required_device<via6522_device> m_via1;
required_device<c64h156_device> m_ga;
required_device<floppy_image_device> m_floppy;
required_ioport m_address;
// IEEE-488 bus
int m_nrfd_out; // not ready for data
int m_ndac_out; // not data accepted
int m_atna; // attention acknowledge
int m_ifc;
// interrupts
int m_via0_irq; // VIA #0 interrupt request
int m_via1_irq; // VIA #1 interrupt request
};
// device type definition
extern const device_type C2031;
#endif
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