vinace/src/core/units/c-unit.hpp

64 lines
1.6 KiB
C++

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
* Vinace
* Copyright (C) P.Y. Rollo 2009 <dev@pyrollo.com>
*
* Vinace is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Vinace is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _C_UNIT_HPP_
#define _C_UNIT_HPP_
#include "../types.h"
#include "../c-memory.hpp"
#include "../c-observable.hpp"
// Helpers macros
#define FLAG_RO(flag) \
protected: \
bool s_##flag; \
public: \
bool get_##flag() { return s_##flag; }
#define FLAG_RW(flag) \
protected: \
bool s_##flag; \
public: \
bool get_ ##flag() { return s_##flag; } \
void set_ ##flag(bool value) { s_##flag = value; notifyUpdate(); }
#define CASE_READ(flag, addr) \
case addr: return bool_to_b7(s_##flag);
#define CASE_SWITCH(flag, addr0, addr1) \
case addr0: s_##flag = false; break; \
case addr1: s_##flag = true; break;
//
// CUnit : An abstract class for I/O Units
//
class CUnit: public CObservable
{
public:
CUnit();
virtual void reset() {};
virtual BYTE read(BYTE addr) = 0;
virtual void write(BYTE addr, BYTE byte) = 0;
};
#endif // _C_UNIT_HPP_