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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 2031 Single Disk Drive emulation
**********************************************************************/
#ifndef MAME_BUS_IEEE488_C2031_H
#define MAME_BUS_IEEE488_C2031_H
#pragma once
#include "ieee488.h"
#include "cpu/m6502/m6502.h"
#include "imagedev/floppy.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_t clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
// device_ieee488_interface overrides
virtual void ieee488_atn(int state) override;
virtual void ieee488_ifc(int state) override;
private:
inline int get_device_number();
DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
uint8_t via0_pa_r();
void via0_pa_w(uint8_t data);
uint8_t via0_pb_r();
void via0_pb_w(uint8_t data);
DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
uint8_t via1_pb_r();
void via1_pb_w(uint8_t data);
DECLARE_WRITE_LINE_MEMBER( byte_w );
void c2031_mem(address_map &map);
DECLARE_FLOPPY_FORMATS( floppy_formats );
required_device<m6502_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;
output_finder<2> m_leds;
// 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
DECLARE_DEVICE_TYPE(C2031, c2031_device)
#endif // MAME_BUS_IEEE488_C2031_H
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