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diff --git a/src/mame/includes/softbox.h b/src/mame/includes/softbox.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder, Mike Naberezny
+#pragma once
+
+#ifndef __SOFTBOX__
+#define __SOFTBOX__
+
+#include "emu.h"
+#include "bus/ieee488/ieee488.h"
+#include "bus/imi7000/imi7000.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"
+
+#define Z80_TAG "z80"
+#define I8251_TAG "ic15"
+#define I8255_0_TAG "ic17"
+#define I8255_1_TAG "ic16"
+#define COM8116_TAG "ic14"
+#define RS232_TAG "rs232"
+#define CORVUS_HDC_TAG "corvus"
+
+class softbox_state : public driver_device
+{
+public:
+ softbox_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, Z80_TAG),
+ m_dbrg(*this, COM8116_TAG),
+ m_ieee(*this, IEEE488_TAG),
+ m_hdc(*this, CORVUS_HDC_TAG)
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<com8116_device> m_dbrg;
+ required_device<ieee488_device> m_ieee;
+ required_device<corvus_hdc_t> m_hdc;
+
+ virtual void machine_start();
+ virtual void device_reset_after_children();
+
+ // device_ieee488_interface overrides
+ virtual void ieee488_ifc(int state);
+
+ 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 );
+
+ enum
+ {
+ LED_A,
+ LED_B,
+ LED_READY
+ };
+
+ int m_ifc; // Tracks previous state of IEEE-488 IFC line
+};
+
+#endif