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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 2040/3040/4040 Disk Drive emulation
**********************************************************************/
#pragma once
#ifndef __C2040__
#define __C2040__
#include "emu.h"
#include "ieee488.h"
#include "c2040fdc.h"
#include "cpu/m6502/m6502.h"
#include "cpu/m6502/m6504.h"
#include "machine/6522via.h"
#include "machine/mos6530n.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c2040_t
class c2040_t : public device_t,
public device_ieee488_interface
{
public:
// construction/destruction
c2040_t(const machine_config &mconfig, device_type type, const char *name, std::string tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
c2040_t(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
virtual ioport_constructor device_input_ports() const override;
DECLARE_READ8_MEMBER( dio_r );
DECLARE_WRITE8_MEMBER( dio_w );
DECLARE_READ8_MEMBER( riot1_pa_r );
DECLARE_WRITE8_MEMBER( riot1_pa_w );
DECLARE_READ8_MEMBER( riot1_pb_r );
DECLARE_WRITE8_MEMBER( riot1_pb_w );
DECLARE_WRITE8_MEMBER( via_pb_w );
DECLARE_FLOPPY_FORMATS( floppy_formats );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_ieee488_interface overrides
virtual void ieee488_atn(int state) override;
virtual void ieee488_ifc(int state) override;
enum
{
LED_POWER = 0,
LED_ACT0,
LED_ACT1,
LED_ERR
};
inline void update_ieee_signals();
required_device<m6502_device> m_maincpu;
required_device<m6504_device> m_fdccpu;
required_device<mos6532_t> m_riot0;
required_device<mos6532_t> m_riot1;
required_device<mos6530_t> m_miot;
required_device<via6522_device> m_via;
required_device<floppy_image_device> m_floppy0;
optional_device<floppy_image_device> m_floppy1;
required_device<c2040_fdc_t> m_fdc;
required_memory_region m_gcr;
required_ioport m_address;
// IEEE-488 bus
int m_rfdo; // not ready for data output
int m_daco; // not data accepted output
int m_atna; // attention acknowledge
int m_ifc;
};
// ======================> c3040_t
class c3040_t : public c2040_t
{
public:
// construction/destruction
c3040_t(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
DECLARE_FLOPPY_FORMATS( floppy_formats );
};
// ======================> c4040_t
class c4040_t : public c2040_t
{
public:
// construction/destruction
c4040_t(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
DECLARE_FLOPPY_FORMATS( floppy_formats );
};
// device type definition
extern const device_type C2040;
extern const device_type C3040;
extern const device_type C4040;
#endif
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