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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;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual ioport_constructor device_input_ports() const;
+
+ // 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_READ8_MEMBER( via_pb_r );
+ 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();
+ virtual void device_reset();
+
+ // device_ieee488_interface overrides
+ void ieee488_atn(int state);
+ void ieee488_ifc(int state);
+
+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