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// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/**********************************************************************
Decision Mate V keyboard emulation
*********************************************************************/
#ifndef MAME_MACHINE_DMV_KEYB_H
#define MAME_MACHINE_DMV_KEYB_H
#pragma once
#include "cpu/mcs48/mcs48.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> dmv_keyboard_device
class dmv_keyboard_device : public device_t
{
public:
// construction/destruction
dmv_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_WRITE_LINE_MEMBER(sd_poll_w);
DECLARE_READ_LINE_MEMBER(sd_poll_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:
required_device<i8741a_device> m_maincpu;
required_ioport_array<16> m_keyboard;
uint8_t m_col;
int m_sd_data_state;
int m_sd_poll_state;
uint8_t port1_r();
uint8_t port2_r();
void port2_w(uint8_t data);
};
// device type definition
DECLARE_DEVICE_TYPE(DMV_KEYBOARD, dmv_keyboard_device)
#endif // MAME_MACHINE_DMV_KEYB_H
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