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diff --git a/src/devices/bus/centronics/comxpl80.h b/src/devices/bus/centronics/comxpl80.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ COMX PL-80 plotter emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __COMX_PL80__
+#define __COMX_PL80__
+
+#include "emu.h"
+#include "cpu/m6805/m6805.h"
+#include "bus/centronics/ctronics.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> comx_pl80_device
+
+class comx_pl80_device : public device_t,
+ public device_centronics_peripheral_interface
+{
+public:
+ // construction/destruction
+ comx_pl80_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;
+
+ // not really public
+ DECLARE_WRITE8_MEMBER( pa_w );
+ DECLARE_WRITE8_MEMBER( pb_w );
+ DECLARE_WRITE8_MEMBER( pc_w );
+ DECLARE_READ8_MEMBER( pd_r );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data0 ) { if (state) m_data |= 0x01; else m_data &= ~0x01; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data1 ) { if (state) m_data |= 0x02; else m_data &= ~0x02; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data2 ) { if (state) m_data |= 0x04; else m_data &= ~0x04; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data3 ) { if (state) m_data |= 0x08; else m_data &= ~0x08; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data4 ) { if (state) m_data |= 0x10; else m_data &= ~0x10; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data5 ) { if (state) m_data |= 0x20; else m_data &= ~0x20; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data6 ) { if (state) m_data |= 0x40; else m_data &= ~0x40; }
+ virtual DECLARE_WRITE_LINE_MEMBER( input_data7 ) { if (state) m_data |= 0x80; else m_data &= ~0x80; }
+
+private:
+ required_memory_region m_plotter;
+ required_ioport m_font;
+ required_ioport m_sw;
+
+ // PL-80 plotter state
+ UINT16 m_font_addr; // font ROM pack address latch
+ UINT8 m_x_motor_phase; // X motor phase
+ UINT8 m_y_motor_phase; // Y motor phase
+ UINT8 m_z_motor_phase; // Z motor phase
+ UINT8 m_plotter_data; // plotter data bus
+ int m_plotter_ack; // plotter acknowledge
+ int m_plotter_online; // online LED
+
+ UINT8 m_data;
+};
+
+
+// device type definition
+extern const device_type COMX_PL80;
+
+
+
+#endif