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Started sketching out a tape parser for ZX80 and '81 files. I think this'll help me to verify whether the .O input is working.

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This commit is contained in:
Thomas Harte 2017-06-07 10:12:13 -04:00
parent 58312ea2b7
commit 60300851ea
3 changed files with 77 additions and 0 deletions
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6
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
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9
Storage/Tape/Parsers/ZX8081.cpp Normal file
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@ -0,0 +1,9 @@
//
// ZX8081.cpp
// Clock Signal
//
// Created by Thomas Harte on 07/06/2017.
// Copyright © 2017 Thomas Harte. All rights reserved.
//
#include "ZX8081.hpp"

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Storage/Tape/Parsers/ZX8081.hpp Normal file
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@ -0,0 +1,62 @@
//
// ZX8081.hpp
// Clock Signal
//
// Created by Thomas Harte on 07/06/2017.
// Copyright © 2017 Thomas Harte. All rights reserved.
//
#ifndef Storage_Tape_Parsers_ZX8081_hpp
#define Storage_Tape_Parsers_ZX8081_hpp
#include "TapeParser.hpp"
#include <string>
#include <vector>
#include <cstdint>
namespace Storage {
namespace Tape {
namespace ZX8081 {
struct File {
std::vector<uint8_t> data;
std::string name;
bool isZX81;
};
enum class WaveType {
Pulse, Gap, LongGap
};
enum class SymbolType {
One, Zero, Gap
};
class Parser: public Storage::Tape::Parser<WaveType, SymbolType> {
public:
Parser();
/*!
Reads and combines the next eight bits.
*/
uint8_t get_next_byte(const std::shared_ptr<Storage::Tape::Tape> &tape);
/*!
Waits for a long gap, reads all the bytes between that and the next long gap, then
attempts to parse those as a valid ZX80 or ZX81 file. If no file is found,
returns nullptr.
*/
std::shared_ptr<File> get_next_file();
private:
/*!
Proceeds beyond the current or next gap then counts pulses until the gap afterwards, and returns the resulting bit.
*/
uint8_t get_next_bit(const std::shared_ptr<Storage::Tape::Tape> &tape);
};
}
}
}
#endif /* ZX8081_hpp */