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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore D9060/D9090 Hard Disk Drive emulation
**********************************************************************/
#pragma once
#ifndef __D9060__
#define __D9060__
#include "emu.h"
#include "ieee488.h"
#include "cpu/m6502/m6502.h"
#include "machine/6522via.h"
#include "machine/mos6530n.h"
#include "bus/scsi/scsi.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> d9060_base_t
class d9060_base_t : public device_t,
public device_ieee488_interface
{
public:
enum
{
TYPE_9060,
TYPE_9090
};
// construction/destruction
d9060_base_t(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, UINT32 variant, const char *shortname, const char *source);
// 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;
// not really public
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_WRITE_LINE_MEMBER( ack_w );
DECLARE_WRITE_LINE_MEMBER( enable_w );
DECLARE_WRITE8_MEMBER( scsi_data_w );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_ieee488_interface overrides
void ieee488_atn(int state) override;
void ieee488_ifc(int state) override;
private:
inline void update_ieee_signals();
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_hdccpu;
required_device<mos6532_t> m_riot0;
required_device<mos6532_t> m_riot1;
required_device<via6522_device> m_via;
required_device<SCSI_PORT_DEVICE> m_sasibus;
required_device<output_latch_device> m_sasi_data_out;
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;
// SASI bus
int m_enable;
UINT8 m_data;
int m_variant;
};
// ======================> d9060_t
class d9060_t : public d9060_base_t
{
public:
// construction/destruction
d9060_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};
// ======================> d9090_t
class d9090_t : public d9060_base_t
{
public:
// construction/destruction
d9090_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};
// device type definition
extern const device_type D9060;
extern const device_type D9090;
#endif
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