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// license:BSD-3-Clause
// copyright-holders:David Haywood
#pragma once
#ifndef BFM_BDA_H
#define BFM_BDA_H
#define MCFG_BFMBDA_ADD(_tag,_val) \
MCFG_DEVICE_ADD(_tag, BFM_BDA,60)\
MCFG_BDA_PORT(_val)
#define MCFG_BDA_PORT(_val) \
bfm_bda_t::static_set_value(*device, _val);
#define MCFG_BFMBDA_REMOVE(_tag) \
MCFG_DEVICE_REMOVE(_tag)
class bfm_bda_t : public device_t
{
public:
bfm_bda_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// inline configuration helpers
static void static_set_value(device_t &device, int val);
int write_char(int data);
virtual void update_display();
UINT8 m_port_val;
void blank(int data);
void shift_data(int data);
void setdata(int segdata, int data);
UINT16 set_display(UINT16 segin);
protected:
static const UINT8 AT_NORMAL = 0x00;
static const UINT8 AT_FLASH = 0x01;
static const UINT8 AT_BLANK = 0x02;
static const UINT8 AT_FLASHED = 0x80; // set when character should be blinked off
int m_cursor_pos;
int m_window_start; // display window start pos 0-15
int m_window_end; // display window end pos 0-15
int m_window_size; // window size
int m_shift_count;
int m_shift_data;
int m_pcursor_pos;
int m_blank_flag;
int m_flash_flag;
int m_scroll_active;
int m_display_mode;
int m_flash_rate;
int m_flash_control;
UINT8 m_cursor;
UINT16 m_chars[16];
UINT16 m_outputs[16];
UINT8 m_attrs[16];
UINT16 m_user_data; // user defined character data (16 bit)
UINT16 m_user_def; // user defined character state
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_post_load() override;
};
extern const device_type BFM_BDA;
#endif
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