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diff --git a/trunk/src/emu/machine/i8212.h b/trunk/src/emu/machine/i8212.h
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+/**********************************************************************
+
+ Intel 8212 8-Bit Input/Output Port emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************
+ _____ _____
+ _DS1 1 |* \_/ | 24 Vcc
+ MD 2 | | 23 _INT
+ DI1 3 | | 22 DI8
+ DO1 4 | | 21 DO8
+ DI2 5 | | 20 DI7
+ DO2 6 | 8212 | 19 DO7
+ DI3 7 | | 18 DI6
+ DO3 8 | | 17 DO6
+ DI4 9 | | 16 DI5
+ DO4 10 | | 15 DO5
+ STB 11 | | 14 _CLR
+ GND 12 |_____________| 13 DS2
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __I8212__
+#define __I8212__
+
+#include "emu.h"
+
+
+
+///*************************************************************************
+// MACROS / CONSTANTS
+///*************************************************************************
+
+enum
+{
+ I8212_MODE_INPUT = 0,
+ I8212_MODE_OUTPUT
+};
+
+
+
+///*************************************************************************
+// INTERFACE CONFIGURATION MACROS
+///*************************************************************************
+
+#define MCFG_I8212_ADD(_tag, _config) \
+ MCFG_DEVICE_ADD((_tag), I8212, 0) \
+ MCFG_DEVICE_CONFIG(_config)
+
+#define I8212_INTERFACE(name) \
+ const i8212_interface (name) =
+
+
+
+///*************************************************************************
+// TYPE DEFINITIONS
+///*************************************************************************
+
+// ======================> i8212_interface
+
+struct i8212_interface
+{
+ devcb_write_line m_out_int_cb;
+
+ devcb_read8 m_in_di_cb;
+ devcb_write8 m_out_do_cb;
+};
+
+
+
+// ======================> i8212_device
+
+class i8212_device : public device_t, public i8212_interface
+{
+public:
+ // construction/destruction
+ i8212_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ DECLARE_READ8_MEMBER( data_r );
+ DECLARE_WRITE8_MEMBER( data_w );
+
+ DECLARE_WRITE_LINE_MEMBER( md_w );
+ DECLARE_WRITE_LINE_MEMBER( stb_w );
+
+protected:
+ // device-level overrides
+ virtual void device_config_complete();
+ virtual void device_start();
+ virtual void device_reset();
+
+private:
+ devcb_resolved_write_line m_out_int_func;
+ devcb_resolved_read8 m_in_di_func;
+ devcb_resolved_write8 m_out_do_func;
+
+ int m_md; // mode
+ int m_stb; // strobe
+ UINT8 m_data; // data latch
+};
+
+
+// device type definition
+extern const device_type I8212;
+
+
+
+#endif