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CLK/Storage/Disk/Encodings/AppleGCR/Sector.hpp

84 lines
1.7 KiB
C++

//
// Sector.hpp
// Clock Signal
//
// Created by Thomas Harte on 04/05/2018.
// Copyright 2018 Thomas Harte. All rights reserved.
//
#ifndef Sector_h
#define Sector_h
#include <cstdint>
#include <vector>
namespace Storage {
namespace Encodings {
namespace AppleGCR {
struct Sector {
/*!
Describes the location of a sector, implementing < to allow for use as a set key.
*/
struct Address {
union {
/// For Apple II-type sectors, provides the volume number.
uint_fast8_t volume;
/// For Macintosh-type sectors, provides the format from the sector header.
uint_fast8_t format = 0;
};
uint_fast8_t track = 0;
uint_fast8_t sector = 0;
/// Filled in for Macintosh sectors only; always @c false for Apple II sectors.
bool is_side_two = false;
bool operator < (const Address &rhs) const {
return (
((is_side_two ? 1 : 0) << 24) |
(volume << 16) |
(track << 8) |
sector
) < (
((rhs.is_side_two ? 1 : 0) << 24) |
(rhs.volume << 16) |
(rhs.track << 8) |
rhs.sector
);
}
};
Address address;
std::vector<uint8_t> data;
bool has_data_checksum_error = false;
bool has_header_checksum_error = false;
enum class Encoding {
FiveAndThree, SixAndTwo, Macintosh
};
Encoding encoding = Encoding::SixAndTwo;
Sector() {}
Sector(Sector &&rhs) :
address(rhs.address),
data(std::move(rhs.data)),
has_data_checksum_error(rhs.has_data_checksum_error),
has_header_checksum_error(rhs.has_header_checksum_error),
encoding(rhs.encoding) {}
Sector(const Sector &rhs) :
address(rhs.address),
data(rhs.data),
has_data_checksum_error(rhs.has_data_checksum_error),
has_header_checksum_error(rhs.has_header_checksum_error),
encoding(rhs.encoding) {}
};
}
}
}
#endif /* Sector_h */