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84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
//
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// CPCDSK.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 05/08/2017.
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// Copyright © 2017 Thomas Harte. All rights reserved.
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//
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#ifndef CPCDSK_hpp
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#define CPCDSK_hpp
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#include "../DiskImage.hpp"
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#include "../../../FileHolder.hpp"
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#include <vector>
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namespace Storage {
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namespace Disk {
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/*!
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Provies a @c Disk containing an Amstrad CPC-stype disk image — some arrangement of sectors with status bits.
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*/
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class CPCDSK: public DiskImage, public Storage::FileHolder {
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public:
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/*!
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Construct an @c AcornADF containing content from the file with name @c file_name.
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@throws ErrorCantOpen if this file can't be opened.
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@throws ErrorNotAcornADF if the file doesn't appear to contain an Acorn .ADF format image.
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*/
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CPCDSK(const char *file_name);
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enum {
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ErrorNotCPCDSK,
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};
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// implemented to satisfy @c Disk
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int get_head_position_count() override;
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int get_head_count() override;
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using DiskImage::get_is_read_only;
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std::shared_ptr<::Storage::Disk::Track> get_track_at_position(::Storage::Disk::Track::Address address) override;
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private:
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struct Track {
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uint8_t track;
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uint8_t side;
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enum class DataRate {
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Unknown, SingleOrDoubleDensity, HighDensity, ExtendedDensity
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} data_rate;
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enum class DataEncoding {
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Unknown, FM, MFM
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} data_encoding;
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uint8_t sector_length;
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uint8_t gap3_length;
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uint8_t filler_byte;
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struct Sector {
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uint8_t track;
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uint8_t side;
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uint8_t sector;
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uint8_t size;
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uint8_t fdc_status1;
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uint8_t fdc_status2;
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// If multiple copies are present, that implies a sector with weak bits, for which multiple
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// samplings were obtained.
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std::vector<std::vector<uint8_t>> data;
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};
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std::vector<Sector> sectors;
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};
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std::vector<std::unique_ptr<Track>> tracks_;
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int head_count_;
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int head_position_count_;
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bool is_extended_;
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};
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}
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}
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#endif /* CPCDSK_hpp */
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