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64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
//
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// MFM.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 18/09/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#ifndef Storage_Disk_Encodings_MFM_hpp
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#define Storage_Disk_Encodings_MFM_hpp
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#include <cstdint>
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#include <vector>
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#include "../Disk.hpp"
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namespace Storage {
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namespace Encodings {
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namespace MFM {
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const uint16_t FMIndexAddressMark = 0xf77a; // data 0xfc, with clock 0xd7 => 1111 1100 with clock 1101 0111 => 1111 0111 0111 1010
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const uint16_t FMIDAddressMark = 0xf57e; // data 0xfe, with clock 0xc7 => 1111 1110 with clock 1100 0111 => 1111 0101 0111 1110
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const uint16_t FMDataAddressMark = 0xf56f; // data 0xfb, with clock 0xc7 => 1111 1011 with clock 1100 0111 => 1111 0101 0110 1111
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const uint16_t FMDeletedDataAddressMark = 0xf56a; // data 0xf8, with clock 0xc7 => 1111 1000 with clock 1100 0111 => 1111 0101 0110 1010
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const uint16_t MFMIndexAddressMark = 0x5224;
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const uint16_t MFMAddressMark = 0x4489;
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const uint8_t MFMIndexAddressByte = 0xfc;
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const uint8_t MFMIDAddressByte = 0xfe;
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const uint8_t MFMDataAddressByte = 0xfb;
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const uint8_t MFMDeletedDataAddressByte = 0xf8;
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struct Sector {
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uint8_t track, side, sector;
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std::vector<uint8_t> data;
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};
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std::shared_ptr<Storage::Disk::Track> GetMFMTrackWithSectors(const std::vector<Sector> §ors);
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std::shared_ptr<Storage::Disk::Track> GetFMTrackWithSectors(const std::vector<Sector> §ors);
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class Encoder {
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public:
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Encoder(std::vector<uint8_t> &target);
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virtual void add_byte(uint8_t input) = 0;
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virtual void add_index_address_mark() = 0;
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virtual void add_ID_address_mark() = 0;
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virtual void add_data_address_mark() = 0;
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virtual void add_deleted_data_address_mark() = 0;
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protected:
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void output_short(uint16_t value);
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private:
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std::vector<uint8_t> &target_;
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};
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std::unique_ptr<Encoder> GetMFMEncoder(std::vector<uint8_t> &target);
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std::unique_ptr<Encoder> GetFMEncoder(std::vector<uint8_t> &target);
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}
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}
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}
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#endif /* MFM_hpp */
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