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83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
//
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// Cartridge.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 27/08/2016.
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// Copyright 2016 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include <vector>
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#include <memory>
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namespace Storage::Cartridge {
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/*!
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Provides a base class for cartridges; the bus provided to cartridges and therefore
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the interface they support is extremely machine-dependent so unlike disks and tapes,
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no model is imposed; this class seeks merely to be a base class for fully-descriptive
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summaries of the contents of emulator files that themselves describe cartridges.
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Consumers will almost certainly seek to dynamic_cast to something more appropriate,
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however some cartridge container formats have no exposition beyond the ROM dump,
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making the base class 100% descriptive.
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*/
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class Cartridge {
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public:
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struct Segment {
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Segment(size_t start_address, size_t end_address, std::vector<uint8_t> &&data) :
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start_address(start_address), end_address(end_address), data(data) {}
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Segment(size_t start_address, size_t end_address, const std::vector<uint8_t> &data) :
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start_address(start_address), end_address(end_address), data(data) {}
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Segment(size_t start_address, std::vector<uint8_t> &&data) :
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Segment(start_address, start_address + data.size(), data) {}
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Segment(size_t start_address, const std::vector<uint8_t> &data) :
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Segment(start_address, start_address + data.size(), data) {}
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Segment(Segment &&segment) :
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start_address(segment.start_address),
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end_address(segment.end_address),
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data(std::move(segment.data)) {}
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Segment(const Segment &segment) :
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start_address(segment.start_address),
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end_address(segment.end_address),
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data(segment.data) {}
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/// Indicates that an address is unknown.
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static const size_t UnknownAddress;
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/// The initial CPU-exposed starting address for this segment; may be @c UnknownAddress.
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size_t start_address;
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/*!
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The initial CPU-exposed ending address for this segment; may be @c UnknownAddress. Not necessarily equal
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to start_address + data_length due to potential paging.
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*/
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size_t end_address;
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/*!
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The data contents for this segment. If @c start_address and @c end_address are suppled then
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the first end_address - start_address bytes will be those initially visible. The size will
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not necessarily be the same as @c end_address - @c start_address due to potential paging.
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*/
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std::vector<uint8_t> data;
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};
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const std::vector<Segment> &get_segments() const {
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return segments_;
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}
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virtual ~Cartridge() = default;
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Cartridge() = default;
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Cartridge(const std::vector<Segment> &segments) : segments_(segments) {}
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protected:
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std::vector<Segment> segments_;
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};
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}
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