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/**********************************************************************
HD44102 Dot Matrix Liquid Crystal Graphic Display Column Driver emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __HD44102__
#define __HD44102__
#include "emu.h"
///*************************************************************************
// INTERFACE CONFIGURATION MACROS
///*************************************************************************
#define MCFG_HD44102_ADD(_tag, _screen_tag, _sx, _sy) \
MCFG_DEVICE_ADD(_tag, HD44102, 0) \
MCFG_VIDEO_SET_SCREEN(_screen_tag) \
hd44102_device::static_set_config(*device, _sx, _sy);
///*************************************************************************
// TYPE DEFINITIONS
///*************************************************************************
// ======================> hd44102_device
class hd44102_device : public device_t,
public device_video_interface
{
public:
// construction/destruction
hd44102_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// inline configuration helpers
static void static_set_config(device_t &device, int sx, int sy);
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
DECLARE_WRITE_LINE_MEMBER( cs2_w );
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
private:
DECLARE_READ8_MEMBER( status_r );
DECLARE_WRITE8_MEMBER( control_w );
DECLARE_READ8_MEMBER( data_r );
DECLARE_WRITE8_MEMBER( data_w );
inline void count_up_or_down();
UINT8 m_ram[4][50]; // display memory
UINT8 m_status; // status register
UINT8 m_output; // output register
int m_cs2; // chip select
int m_page; // display start page
int m_x; // X address
int m_y; // Y address
int m_sx;
int m_sy;
};
// device type definition
extern const device_type HD44102;
#endif
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