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// license:BSD-3-Clause
// copyright-holders:David Haywood
#ifndef MAME_MACHINE_BFM_BD1_H
#define MAME_MACHINE_BFM_BD1_H
#pragma once
class bfm_bd1_device : public device_t
{
public:
bfm_bd1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, uint8_t port_val)
: bfm_bd1_device(mconfig, tag, owner, clock)
{
set_port_val(port_val);
}
bfm_bd1_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_clock(int state);
void setdata(int segdata, int data);
uint16_t set_display(uint16_t segin);
DECLARE_WRITE_LINE_MEMBER( sclk );
DECLARE_WRITE_LINE_MEMBER( data );
DECLARE_WRITE_LINE_MEMBER( por );
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_scroll_active;
int m_display_mode;
int m_flash_rate;
int m_flash_control;
int m_sclk;
int m_data;
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_BD1, bfm_bd1_device)
#endif // MAME_MACHINE_BFM_BD1_H
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