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diff --git a/src/devices/bus/ieee488/softbox.h b/src/devices/bus/ieee488/softbox.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder, Mike Naberezny
+/**********************************************************************
+
+ SSE SoftBox emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __PET_SOFTBOX__
+#define __PET_SOFTBOX__
+
+#include "ieee488.h"
+#include "bus/rs232/rs232.h"
+#include "cpu/z80/z80.h"
+#include "imagedev/harddriv.h"
+#include "machine/corvushd.h"
+#include "machine/com8116.h"
+#include "machine/i8251.h"
+#include "machine/i8255.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> softbox_device
+
+class softbox_device : public device_t,
+ public device_ieee488_interface
+{
+public:
+ // construction/destruction
+ softbox_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_WRITE8_MEMBER( dbrg_w );
+
+ DECLARE_READ8_MEMBER( ppi0_pa_r );
+ DECLARE_WRITE8_MEMBER( ppi0_pb_w );
+
+ DECLARE_READ8_MEMBER( ppi1_pa_r );
+ DECLARE_WRITE8_MEMBER( ppi1_pb_w );
+ DECLARE_READ8_MEMBER( ppi1_pc_r );
+ DECLARE_WRITE8_MEMBER( ppi1_pc_w );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset_after_children();
+
+ // device_ieee488_interface overrides
+ virtual void ieee488_ifc(int state);
+
+private:
+ enum
+ {
+ LED_A,
+ LED_B,
+ LED_READY
+ };
+
+ required_device<cpu_device> m_maincpu;
+ required_device<com8116_device> m_dbrg;
+ required_device<corvus_hdc_t> m_hdc;
+
+ int m_ifc; // Tracks previous state of IEEE-488 IFC line
+};
+
+
+// device type definition
+extern const device_type SOFTBOX;
+
+
+
+#endif