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// license:BSD-3-Clause
// copyright-holders:David Haywood
#ifndef MAME_MACHINE_BFM_BDA_H
#define MAME_MACHINE_BFM_BDA_H
#pragma once
#define MCFG_BFMBDA_ADD(_tag,_val) \
MCFG_DEVICE_ADD(_tag, BFM_BDA, 60)\
MCFG_BDA_PORT(_val)
#define MCFG_BDA_PORT(_val) \
downcast<bfm_bda_device &>(*device).set_port_val(_val);
class bfm_bda_device : public device_t
{
public:
bfm_bda_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// inline configuration helpers
void set_port_val(uint8_t val) { m_port_val = val; }
int write_char(int data);
virtual void update_display();
void blank(int data);
void shift_data(int data);
void setdata(int segdata, int data);
uint16_t set_display(uint16_t segin);
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_post_load() override;
private:
static const uint8_t AT_NORMAL = 0x00;
static const uint8_t AT_FLASH = 0x01;
static const uint8_t AT_BLANK = 0x02;
static const uint8_t AT_FLASHED = 0x80; // set when character should be blinked off
std::unique_ptr<output_finder<16> > m_outputs;
uint8_t m_port_val;
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_t m_cursor;
uint16_t m_chars[16];
uint8_t m_attrs[16];
uint16_t m_user_data; // user defined character data (16 bit)
uint16_t m_user_def; // user defined character state
};
DECLARE_DEVICE_TYPE(BFM_BDA, bfm_bda_device)
#endif // MAME_MACHINE_BFM_BDA_H
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