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// license:BSD-3-Clause
// copyright-holders:Tim Schuerewegen
/***************************************************************************
Hitachi HD66421 LCD Controller
(c) 2001-2007 Tim Schuerewegen
***************************************************************************/
#ifndef MAME_VIDEO_HD66421_H
#define MAME_VIDEO_HD66421_H
#pragma once
#include "emupal.h"
///*************************************************************************
// TYPE DEFINITIONS
///*************************************************************************
// ======================> hd66421_device
class hd66421_device : public device_t,
public device_memory_interface
{
public:
static constexpr unsigned WIDTH = 160;
static constexpr unsigned HEIGHT = 100;
// construction/destruction
hd66421_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
uint8_t reg_idx_r();
void reg_idx_w(uint8_t data);
uint8_t reg_dat_r();
void reg_dat_w(uint8_t data);
uint32_t update_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
// device_config_memory_interface overrides
virtual space_config_vector memory_space_config() const override;
// address space configurations
const address_space_config m_space_config;
inline uint8_t readbyte(offs_t address);
inline void writebyte(offs_t address, uint8_t data);
void plot_pixel(bitmap_ind16 &bitmap, int x, int y, uint32_t color);
private:
uint8_t m_cmd, m_reg[32];
int m_x, m_y;
required_device<palette_device> m_palette;
void hd66421(address_map &map);
void hd66421_palette(palette_device &palette) const;
};
// device type definition
DECLARE_DEVICE_TYPE(HD66421, hd66421_device)
#endif // MAME_VIDEO_HD66421_H
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