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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
CMOS 40105 FIFO Register emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __CMOS_40105__
#define __CMOS_40105__
#include "emu.h"
#include <queue>
///*************************************************************************
// INTERFACE CONFIGURATION MACROS
///*************************************************************************
#define MCFG_40105_ADD(_tag, _dir, _dor) \
MCFG_DEVICE_ADD(_tag, CMOS_40105, 0) \
downcast<cmos_40105_device *>(device)->set_dir_callback(DEVCB2_##_dir); \
downcast<cmos_40105_device *>(device)->set_dor_callback(DEVCB2_##_dor);
///*************************************************************************
// TYPE DEFINITIONS
///*************************************************************************
// ======================> cmos_40105_device
class cmos_40105_device : public device_t
{
public:
// construction/destruction
cmos_40105_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _dir> void set_dir_callback(_dir dir) { m_write_dir.set_callback(dir); }
template<class _dor> void set_dor_callback(_dor dor) { m_write_dor.set_callback(dor); }
UINT8 read();
void write(UINT8 data);
DECLARE_WRITE_LINE_MEMBER( si_w );
DECLARE_WRITE_LINE_MEMBER( so_w );
DECLARE_READ_LINE_MEMBER( dir_r );
DECLARE_READ_LINE_MEMBER( dor_r );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
private:
devcb2_write_line m_write_dir;
devcb2_write_line m_write_dor;
std::queue<UINT8> m_fifo;
UINT8 m_d;
UINT8 m_q;
int m_dir;
int m_dor;
int m_si;
int m_so;
};
// device type definition
extern const device_type CMOS_40105;
#endif
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