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diff --git a/src/emu/video/hd66421.h b/src/emu/video/hd66421.h
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+/***************************************************************************
+
+ Hitachi HD66421 LCD Controller
+
+ (c) 2001-2007 Tim Schuerewegen
+
+ ***************************************************************************/
+
+#pragma once
+
+#ifndef __HD66421_H__
+#define __HD66421_H__
+
+
+///*************************************************************************
+// MACROS / CONSTANTS
+///*************************************************************************
+
+//#define HD66421_BRIGHTNESS_DOES_NOT_WORK
+
+#define HD66421_WIDTH 160
+#define HD66421_HEIGHT 100
+
+
+/*----------- defined in video/hd66421.c -----------*/
+
+///*************************************************************************
+// INTERFACE CONFIGURATION MACROS
+///*************************************************************************
+
+#define MCFG_HD66421_ADD(_tag) \
+ MCFG_DEVICE_ADD(_tag, HD66421, 0)
+
+///*************************************************************************
+// TYPE DEFINITIONS
+///*************************************************************************
+
+// ======================> hd66421_device
+
+class hd66421_device : public device_t,
+ public device_memory_interface
+{
+public:
+ // construction/destruction
+ hd66421_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ DECLARE_READ8_MEMBER( reg_idx_r );
+ DECLARE_WRITE8_MEMBER( reg_idx_w );
+ DECLARE_READ8_MEMBER( reg_dat_r );
+ DECLARE_WRITE8_MEMBER( reg_dat_w );
+
+ UINT32 update_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ // device_config_memory_interface overrides
+ virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
+
+ // address space configurations
+ const address_space_config m_space_config;
+
+ inline UINT8 readbyte(offs_t address);
+ inline void writebyte(offs_t address, UINT8 data);
+
+ void plot_pixel(bitmap_ind16 &bitmap, int x, int y, UINT32 color);
+
+private:
+ UINT8 m_cmd, m_reg[32];
+ int m_x, m_y;
+};
+
+
+// device type definition
+extern const device_type HD66421;
+
+
+#endif