47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
/* Copyright 2010-2019 Will Scullin <scullin@scullinsteel.com>
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation. No representations are made about the suitability of this
|
|
* software for any purpose. It is provided "as is" without express or
|
|
* implied warranty.
|
|
*/
|
|
|
|
import { explodeSector16, _DO } from './format_utils';
|
|
import { bytify } from '../util';
|
|
|
|
export default function DOS(options) {
|
|
var { data, name, rawData, volume, readOnly } = options;
|
|
var disk = {
|
|
format: 'dsk',
|
|
name,
|
|
volume,
|
|
readOnly,
|
|
tracks: [],
|
|
trackMap: null,
|
|
rawTracks: null
|
|
};
|
|
|
|
for (var t = 0; t < 35; t++) {
|
|
var track = [];
|
|
for (var s = 0; s < 16; s++) {
|
|
var _s = 15 - s;
|
|
var sector;
|
|
if (rawData) {
|
|
var off = (16 * t + _s) * 256;
|
|
sector = new Uint8Array(rawData.slice(off, off + 256));
|
|
} else {
|
|
sector = data[t][_s];
|
|
}
|
|
track = track.concat(
|
|
explodeSector16(volume, t, _DO[_s], sector)
|
|
);
|
|
}
|
|
disk.tracks[t] = bytify(track);
|
|
}
|
|
|
|
return disk;
|
|
}
|