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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
MOS Technology 6529 Single Port Interface Adapter emulation
**********************************************************************
_____ _____
R/W 1 |* \_/ | 20 Vdd
P0 2 | | 19 _CS
P1 3 | | 18 D0
P2 4 | | 17 D1
P3 5 | MOS6529 | 16 D2
P4 6 | | 15 D3
P5 7 | | 14 D4
P6 8 | | 13 D5
P7 9 | | 12 D6
Vss 10 |_____________| 11 D7
**********************************************************************/
#pragma once
#ifndef __MOS6529__
#define __MOS6529__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MOS6529_P0_HANDLER(_devcb) \
devcb = &mos6529_device::set_p0_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P1_HANDLER(_devcb) \
devcb = &mos6529_device::set_p1_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P2_HANDLER(_devcb) \
devcb = &mos6529_device::set_p2_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P3_HANDLER(_devcb) \
devcb = &mos6529_device::set_p3_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P4_HANDLER(_devcb) \
devcb = &mos6529_device::set_p4_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P5_HANDLER(_devcb) \
devcb = &mos6529_device::set_p5_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P6_HANDLER(_devcb) \
devcb = &mos6529_device::set_p6_handler(*device, DEVCB_##_devcb);
#define MCFG_MOS6529_P7_HANDLER(_devcb) \
devcb = &mos6529_device::set_p7_handler(*device, DEVCB_##_devcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> mos6529_device
class mos6529_device : public device_t
{
public:
// construction/destruction
mos6529_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb_base &set_p0_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p0_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p1_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p1_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p2_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p2_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p3_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p3_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p4_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p4_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p5_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p5_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p6_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p6_handler.set_callback(object); }
template<class _Object> static devcb_base &set_p7_handler(device_t &device, _Object object) { return downcast<mos6529_device &>(device).m_p7_handler.set_callback(object); }
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
DECLARE_WRITE_LINE_MEMBER( write_p0 ) { if (state) m_input |= 1; else m_input &= ~1; }
DECLARE_WRITE_LINE_MEMBER( write_p1 ) { if (state) m_input |= 2; else m_input &= ~2; }
DECLARE_WRITE_LINE_MEMBER( write_p2 ) { if (state) m_input |= 4; else m_input &= ~4; }
DECLARE_WRITE_LINE_MEMBER( write_p3 ) { if (state) m_input |= 8; else m_input &= ~8; }
DECLARE_WRITE_LINE_MEMBER( write_p4 ) { if (state) m_input |= 16; else m_input &= ~16; }
DECLARE_WRITE_LINE_MEMBER( write_p5 ) { if (state) m_input |= 32; else m_input &= ~32; }
DECLARE_WRITE_LINE_MEMBER( write_p6 ) { if (state) m_input |= 64; else m_input &= ~64; }
DECLARE_WRITE_LINE_MEMBER( write_p7 ) { if (state) m_input |= 128; else m_input &= ~128; }
protected:
// device-level overrides
virtual void device_start();
UINT8 m_input;
devcb_write_line m_p0_handler;
devcb_write_line m_p1_handler;
devcb_write_line m_p2_handler;
devcb_write_line m_p3_handler;
devcb_write_line m_p4_handler;
devcb_write_line m_p5_handler;
devcb_write_line m_p6_handler;
devcb_write_line m_p7_handler;
};
// device type definition
extern const device_type MOS6529;
#endif
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