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https://github.com/whscullin/apple2js.git
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2daef8040f
Disk side information was being dropped and thus not displayable in the UI. This plumbs the value through various formats and adds some light testing. Also fixes an issue where URL encoded hashes were not properly interpreted.
56 lines
2.0 KiB
TypeScript
56 lines
2.0 KiB
TypeScript
/* 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 { explodeSector16, PO } from './format_utils';
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import { bytify } from '../util';
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import type { byte } from '../types';
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import { NibbleDisk, DiskOptions, ENCODING_NIBBLE } from './types';
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/**
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* Returns a `Disk` object from ProDOS-ordered image data.
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* @param options the disk image and options
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* @returns A nibblized disk
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*/
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export default function createDiskFromProDOS(options: DiskOptions) {
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const { data, name, side, rawData, volume, readOnly } = options;
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const disk: NibbleDisk = {
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format: 'nib',
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encoding: ENCODING_NIBBLE,
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name,
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side,
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volume: volume || 254,
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tracks: [],
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readOnly: readOnly || false,
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};
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for (let physical_track = 0; physical_track < 35; physical_track++) {
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let track: byte[] = [];
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for (let physical_sector = 0; physical_sector < 16; physical_sector++) {
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const prodos_sector = PO[physical_sector];
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let sector;
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if (rawData) {
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const off = (16 * physical_track + prodos_sector) * 256;
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sector = new Uint8Array(rawData.slice(off, off + 256));
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} else if (data) {
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sector = data[physical_track][prodos_sector];
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} else {
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throw new Error('Requires data or rawData');
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}
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track = track.concat(
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explodeSector16(volume, physical_track, physical_sector, sector)
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);
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}
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disk.tracks[physical_track] = bytify(track);
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}
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return disk;
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}
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