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45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
/* Copyright 2010-2019 Will Scullin <scullin@scullinsteel.com>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation. No representations are made about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*/
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import { explodeSector13, _D13O } from './format_utils';
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export default function Nibble(options) {
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var { data, name, rawData, volume, readOnly } = options;
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var disk = {
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format: 'd13',
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name,
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volume,
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readOnly,
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tracks: [],
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trackMap: null,
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rawTracks: null
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};
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for (var t = 0; t < 35; t++) {
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var track = [];
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for (var s = 0; s < 13; s++) {
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var sector;
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if (rawData) {
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var off = (13 * t + _D13O[s]) * 256;
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sector = new Uint8Array(rawData.slice(off, off + 256));
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} else {
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sector = data[t][_D13O[s]];
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}
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track = track.concat(
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explodeSector13(volume, t, _D13O[s], sector)
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);
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}
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disk.tracks.push(track);
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}
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return disk;
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}
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