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66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
//
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// ZX8081.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 07/06/2017.
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// Copyright © 2017 Thomas Harte. All rights reserved.
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//
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#ifndef Storage_Tape_Parsers_ZX8081_hpp
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#define Storage_Tape_Parsers_ZX8081_hpp
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#include "TapeParser.hpp"
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#include "../../Data/ZX8081.hpp"
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#include <string>
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#include <vector>
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#include <cstdint>
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namespace Storage {
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namespace Tape {
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namespace ZX8081 {
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enum class WaveType {
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Pulse, Gap, LongGap, Unrecognised
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};
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enum class SymbolType {
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One, Zero, FileGap, Unrecognised
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};
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class Parser: public Storage::Tape::Parser<WaveType, SymbolType> {
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public:
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Parser();
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/*!
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Reads and combines the next eight bits. Returns -1 if any errors are encountered.
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*/
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int get_next_byte(const std::shared_ptr<Storage::Tape::Tape> &tape);
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/*!
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Waits for a long gap, reads all the bytes between that and the next long gap, then
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attempts to parse those as a valid ZX80 or ZX81 file. If no file is found,
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returns nullptr.
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*/
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std::shared_ptr<Storage::Data::ZX8081::File> get_next_file(const std::shared_ptr<Storage::Tape::Tape> &tape);
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private:
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bool pulse_was_high_;
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Time pulse_time_;
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void post_pulse();
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void process_pulse(Storage::Tape::Tape::Pulse pulse);
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void mark_end();
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void inspect_waves(const std::vector<WaveType> &waves);
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std::shared_ptr<std::vector<uint8_t>> get_next_file_data(const std::shared_ptr<Storage::Tape::Tape> &tape);
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};
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}
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}
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}
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#endif /* ZX8081_hpp */
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