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Diffstat (limited to 'src/devices/bus/ieee488/c2031.h')
-rw-r--r--src/devices/bus/ieee488/c2031.h87
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diff --git a/src/devices/bus/ieee488/c2031.h b/src/devices/bus/ieee488/c2031.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Commodore 2031 Single Disk Drive emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __C2031__
+#define __C2031__
+
+#include "emu.h"
+#include "ieee488.h"
+#include "cpu/m6502/m6502.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 clock);
+
+ // 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;
+
+ DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
+ DECLARE_READ8_MEMBER( via0_pa_r );
+ DECLARE_WRITE8_MEMBER( via0_pa_w );
+ DECLARE_READ8_MEMBER( via0_pb_r );
+ DECLARE_WRITE8_MEMBER( via0_pb_w );
+ DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
+ DECLARE_READ8_MEMBER( via1_pb_r );
+ DECLARE_WRITE8_MEMBER( via1_pb_w );
+ DECLARE_WRITE_LINE_MEMBER( byte_w );
+
+ DECLARE_FLOPPY_FORMATS( floppy_formats );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_ieee488_interface overrides
+ virtual void ieee488_atn(int state);
+ virtual void ieee488_ifc(int state);
+
+ inline int get_device_number();
+
+ required_device<cpu_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;
+
+ // 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
+extern const device_type C2031;
+
+
+
+#endif