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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Tandy Radio Shack TRS-80 Model II keyboard emulation
**********************************************************************/
#ifndef MAME_MACHINE_TRS80M2KB_H
#define MAME_MACHINE_TRS80M2KB_H
#pragma once
#include "cpu/mcs48/mcs48.h"
#include "sound/discrete.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define TRS80M2_KEYBOARD_TAG "trs80m2kb"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> trs80m2_keyboard_device
class trs80m2_keyboard_device : public device_t
{
public:
// construction/destruction
trs80m2_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto clock_wr_callback() { return m_write_clock.bind(); }
DECLARE_WRITE_LINE_MEMBER( busy_w );
DECLARE_READ_LINE_MEMBER( data_r );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
private:
enum
{
LED_0 = 0,
LED_1
};
required_device<i8021_device> m_maincpu;
required_ioport_array<12> m_y;
output_finder<2> m_leds;
devcb_write_line m_write_clock;
int m_busy;
int m_data;
int m_clk;
uint8_t m_keylatch;
DECLARE_READ_LINE_MEMBER( kb_t1_r );
uint8_t kb_p0_r();
void kb_p1_w(uint8_t data);
void kb_p2_w(uint8_t data);
};
// device type definition
DECLARE_DEVICE_TYPE(TRS80M2_KEYBOARD, trs80m2_keyboard_device)
#endif // MAME_MACHINE_TRS80M2KB_H
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