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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Tandy 2000 keyboard emulation
*********************************************************************/
#pragma once
#ifndef __TANDY2K_KEYBOARD__
#define __TANDY2K_KEYBOARD__
#include "emu.h"
#include "cpu/mcs48/mcs48.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define TANDY2K_KEYBOARD_TAG "tandy2kb"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_TANDY2000_KEYBOARD_CLOCK_CALLBACK(_write) \
devcb = &tandy2k_keyboard_device::set_clock_wr_callback(*device, DEVCB_##_write);
#define MCFG_TANDY2000_KEYBOARD_DATA_CALLBACK(_write) \
devcb = &tandy2k_keyboard_device::set_data_wr_callback(*device, DEVCB_##_write);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> tandy2k_keyboard_device
class tandy2k_keyboard_device : public device_t
{
public:
// construction/destruction
tandy2k_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb_base &set_clock_wr_callback(device_t &device, _Object object) { return downcast<tandy2k_keyboard_device &>(device).m_write_clock.set_callback(object); }
template<class _Object> static devcb_base &set_data_wr_callback(device_t &device, _Object object) { return downcast<tandy2k_keyboard_device &>(device).m_write_data.set_callback(object); }
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
virtual ioport_constructor device_input_ports() const;
DECLARE_WRITE_LINE_MEMBER( power_w );
DECLARE_WRITE_LINE_MEMBER( reset_w );
DECLARE_WRITE_LINE_MEMBER( busy_w );
DECLARE_READ_LINE_MEMBER( data_r );
// not really public
DECLARE_READ8_MEMBER( kb_p1_r );
DECLARE_WRITE8_MEMBER( kb_p1_w );
DECLARE_WRITE8_MEMBER( kb_p2_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
private:
enum
{
LED_1 = 0,
LED_2
};
required_device<cpu_device> m_maincpu;
required_ioport m_y0;
required_ioport m_y1;
required_ioport m_y2;
required_ioport m_y3;
required_ioport m_y4;
required_ioport m_y5;
required_ioport m_y6;
required_ioport m_y7;
required_ioport m_y8;
required_ioport m_y9;
required_ioport m_y10;
required_ioport m_y11;
devcb_write_line m_write_clock;
devcb_write_line m_write_data;
UINT16 m_keylatch;
int m_clock;
int m_data;
};
// device type definition
extern const device_type TANDY2K_KEYBOARD;
#endif
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