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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Tandy Radio Shack TRS-80 Model II keyboard emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __TRS80M2_KEYBOARD__
#define __TRS80M2_KEYBOARD__
#include "emu.h"
#include "cpu/mcs48/mcs48.h"
#include "sound/discrete.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define TRS80M2_KEYBOARD_TAG "trs80m2kb"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_TRS80M2_KEYBOARD_ADD(_clock) \
MCFG_DEVICE_ADD(TRS80M2_KEYBOARD_TAG, TRS80M2_KEYBOARD, 0) \
downcast<trs80m2_keyboard_device *>(device)->set_clock_callback(DEVCB2_##_clock);
//**************************************************************************
// 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 clock);
template<class _clock> void set_clock_callback(_clock clock) { m_write_clock.set_callback(clock); }
// 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( busy_w );
DECLARE_READ_LINE_MEMBER( data_r );
// not really public
DECLARE_READ8_MEMBER( kb_t1_r );
DECLARE_READ8_MEMBER( kb_p0_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_0 = 0,
LED_1
};
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_ya;
required_ioport m_yb;
devcb2_write_line m_write_clock;
int m_busy;
int m_data;
int m_clk;
UINT8 m_y;
};
// device type definition
extern const device_type TRS80M2_KEYBOARD;
#endif
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