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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
IBM Model F PC/XT 83-key keyboard emulation
*********************************************************************/
#ifndef MAME_BUS_PC_KBD_PCXT83_H
#define MAME_BUS_PC_KBD_PCXT83_H
#pragma once
#include "pc_kbdc.h"
#include "cpu/mcs48/mcs48.h"
#include "machine/rescap.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> ibm_pc_xt_83_keyboard_device
class ibm_pc_xt_83_keyboard_device : public device_t, public device_pc_kbd_interface
{
public:
// construction/destruction
ibm_pc_xt_83_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD;
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual ioport_constructor device_input_ports() const override ATTR_COLD;
// device_pc_kbd_interface overrides
virtual void clock_write(int state) override;
virtual void data_write(int state) override;
private:
uint8_t bus_r();
void bus_w(uint8_t data);
void p1_w(uint8_t data);
void p2_w(uint8_t data);
int t0_r();
int t1_r();
required_device<i8048_device> m_maincpu;
required_ioport_array<12> m_md;
uint8_t m_bus;
uint8_t m_p1;
uint8_t m_p2;
int m_sense;
int m_q;
};
// device type definition
DECLARE_DEVICE_TYPE(PC_KBD_IBM_PC_XT_83, ibm_pc_xt_83_keyboard_device)
#endif // MAME_BUS_PC_KBD_PCXT83_H
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