vinace/src/hardware/c-floppy-disk.cpp
Pierre-Yves Rollo 237c0f8e69 First commit
2019-02-18 11:04:02 +01:00

93 lines
2.6 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/>.
*/
#include "c-floppy-disk.hpp"
#include "gcr.h"
#include <fstream>
#include <iostream>
CFloppyDisk::CFloppyDisk() {
set_name("Blank disk");
}
CFloppyDisk::CFloppyDisk(std::string filename) {
set_name("Blank disk");
load_from_dsk_file(filename);
}
std::string CFloppyDisk::get_name() {
return name;
}
void CFloppyDisk::set_name(std::string name) {
this->name = name;
}
BYTE CFloppyDisk::get_nibble(int track, int position) {
if (in_disk(track, position))
return nibbles[track][position];
else
return 0xFF;
}
void CFloppyDisk::set_nibble(int track, int position, BYTE nibble) {
if (in_disk(track, position))
nibbles[track][position] = nibble;
}
void CFloppyDisk::set_name_from_file(std::string filename) {
size_t pos;
std::string name = filename;
pos = name.rfind('/');
if (pos != std::string::npos)
name = name.substr(pos+1);
pos = name.rfind('.');
if (pos != std::string::npos)
name = name.substr(0,pos);
set_name(name);
}
// Reads from a logical disk image
void CFloppyDisk::load_from_dsk_file(std::string filename) {
BYTE logical_disk[DISK_IMAGE_SIZE];
std::ifstream file (filename.c_str(), std::ios::in|std::ios::binary);
if (file.is_open())
{
file.read ((char *)logical_disk, DISK_IMAGE_SIZE);
file.close();
if (file.fail()) {
if (file.eof())
std::cout<< "CDiskDrive: Disk image file \""<< filename <<"\" too small !\n"<<std::endl;
else
std::cout<< "CDiskDrive: Failed to read disk image file \""<< filename <<"\".\n"<<std::endl;
}
}
else std::cout<< "CDiskDrive: Unable to load disk image file \""<< filename <<"\".\n"<<std::endl;
// Convert disk image to nibbles
for (int track = 0; track < DISK_IMAGE_TRACKS; track++)
SectorsToNibbles(logical_disk+track*DISK_IMAGE_TRACK_SIZE, nibbles[track], 254, track);
set_name_from_file(filename);
}
// "Understanding the Apple II" p9-27