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

84 lines
1.9 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_DISK_UNIT_HPP_
#define _C_DISK_UNIT_HPP_
#include "c-unit.hpp"
enum drive_action {
action_none,
action_motor,
action_write,
action_read,
action_magnet
};
class CDriveInterface:public CObservable
{
public:
CDriveInterface();
drive_action get_action() { return action; };
void set_protection(bool onoff) { this->protection = onoff; };
bool get_protection() { return this->protection; };
void set_motor(bool onoff);
void set_magnet(char number, bool onoff);
void ask_read();
bool data_ready() { return ready; };
void ask_write();
void set_data(BYTE data) { ready=true; this->data=data; };
BYTE get_data() { ready=false; return data; };
bool onoff;
char number;
protected:
drive_action action;
BYTE data;
bool ready;
bool protection;
};
class CDiskUnit:public CUnit
{
public:
CDiskUnit();
void write(BYTE addr, BYTE byte);
BYTE read(BYTE addr);
void reset();
CDriveInterface *interfaces[2];
protected:
CDriveInterface *selected;
enum {mode_none, mode_read, mode_write, mode_check} mode;
BYTE buffered_data;
private:
void access(BYTE addr);
BYTE dummy;
};
#endif // _C_DISK_UNIT_HPP_