mirror of
https://github.com/TomHarte/CLK.git
synced 2024-12-12 08:30:05 +00:00
52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
//
|
|
// HDV.hpp
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 14/11/2022.
|
|
// Copyright © 2022 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#pragma once
|
|
|
|
#include "../MassStorageDevice.hpp"
|
|
#include "../../FileHolder.hpp"
|
|
#include "../Encodings/AppleIIVolume.hpp"
|
|
|
|
#include <limits>
|
|
#include <vector>
|
|
|
|
namespace Storage::MassStorage {
|
|
|
|
/*!
|
|
Provides a @c MassStorageDevice containing an HDV image, which is a sector dump of
|
|
the ProDOS volume of an Apple II drive.
|
|
*/
|
|
class HDV: public MassStorageDevice {
|
|
public:
|
|
/*!
|
|
Constructs an HDV with the contents of the file named @c file_name within
|
|
the range given.
|
|
|
|
Raises an exception if the file name doesn't appear to identify a valid
|
|
Apple II mass storage image.
|
|
*/
|
|
HDV(const std::string &file_name, long start = 0, long size = std::numeric_limits<long>::max());
|
|
|
|
private:
|
|
FileHolder file_;
|
|
long file_start_, image_size_;
|
|
Storage::MassStorage::Encodings::AppleII::Mapper mapper_;
|
|
|
|
/// @returns -1 if @c address is out of range; the offset into the file at which
|
|
/// the block for @c address resides otherwise.
|
|
long offset_for_block(ssize_t address);
|
|
|
|
/* MassStorageDevices overrides. */
|
|
size_t get_block_size() final;
|
|
size_t get_number_of_blocks() final;
|
|
std::vector<uint8_t> get_block(size_t address) final;
|
|
void set_block(size_t address, const std::vector<uint8_t> &) final;
|
|
};
|
|
|
|
}
|