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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 8050/8250/SFD-1001 Disk Drive emulation
**********************************************************************/
#ifndef MAME_BUS_IEE488_C8050_H
#define MAME_BUS_IEE488_C8050_H
#pragma once
#include "ieee488.h"
#include "c8050fdc.h"
#include "cpu/m6502/m6502.h"
#include "cpu/m6502/m6504.h"
#include "machine/6522via.h"
#include "machine/mos6530n.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c8050_device
class c8050_device : public device_t, public device_ieee488_interface
{
public:
// construction/destruction
c8050_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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 );
protected:
c8050_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// 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;
inline void update_ieee_signals();
required_device<m6502_device> m_maincpu;
required_device<m6504_device> m_fdccpu;
required_device<mos6532_new_device> m_riot0;
required_device<mos6532_new_device> m_riot1;
required_device<mos6530_new_device> m_miot;
required_device<via6522_device> m_via;
required_device<floppy_connector> m_floppy0;
optional_device<floppy_connector> m_floppy1;
required_device<c8050_fdc_device> m_fdc;
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;
private:
DECLARE_FLOPPY_FORMATS( floppy_formats );
};
// ======================> c8250_device
class c8250_device : public c8050_device
{
public:
// construction/destruction
c8250_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
private:
DECLARE_FLOPPY_FORMATS( floppy_formats );
};
// ======================> c8250lp_device
class c8250lp_device : public c8050_device
{
public:
// construction/destruction
c8250lp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
private:
DECLARE_FLOPPY_FORMATS( floppy_formats );
};
// ======================> sfd1001_device
class sfd1001_device : public c8050_device
{
public:
// construction/destruction
sfd1001_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
private:
DECLARE_FLOPPY_FORMATS( floppy_formats );
};
// device type definition
DECLARE_DEVICE_TYPE(C8050, c8050_device)
DECLARE_DEVICE_TYPE(C8250, c8250_device)
DECLARE_DEVICE_TYPE(C8250LP, c8250lp_device)
DECLARE_DEVICE_TYPE(SFD1001, sfd1001_device)
#endif // MAME_BUS_IEE488_C8050_H
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