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// license:BSD-3-Clause
// copyright-holders:Juergen Buchmueller
/**********************************************************************
Rockwell 10696 General Purpose Input/Output (I/O)
Juergen Buchmueller <pullmoll@t-online.de>
The device decodes reads/write to a 16 byte I/O range defined
by four wired inputs SC1, SC2, SC3 and SC4.
It provides 12 inputs and 12 outputs in groups of three
time 4 bits each.
**********************************************************************/
#ifndef __R10696_H__
#define __R10696_H__
#include "device.h"
/*************************************
*
* Device configuration macros
*
*************************************/
/* Set the read and write group (4-bit; nibble) delegates */
#define MCFG_R10696_IO(_devcb_rd,_devcb_wr) \
r10696_device::set_iord(*device, DEVCB_##_devcb_rd); \
r10696_device::set_iowr(*device, DEVCB_##_devcb_wr);
class r10696_device : public device_t
{
public:
r10696_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~r10696_device() {}
DECLARE_READ8_MEMBER ( io_r );
DECLARE_WRITE8_MEMBER( io_w );
template<class _Object> static devcb_base &set_iord(device_t &device, _Object object) { return downcast<r10696_device &>(device).m_iord.set_callback(object); }
template<class _Object> static devcb_base &set_iowr(device_t &device, _Object object) { return downcast<r10696_device &>(device).m_iowr.set_callback(object); }
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
private:
UINT8 m_io_a; //!< input/output flip-flops group A
UINT8 m_io_b; //!< input/output flip-flops group B
UINT8 m_io_c; //!< input/output flip-flops group C
devcb_read8 m_iord; //!< input line (read, offset = group, data = 4 bits)
devcb_write8 m_iowr; //!< output line (write, offset = group, data = 4 bits)
};
extern const device_type R10696;
#endif /* __R10696_H__ */
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