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35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
#pragma once
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#include <cstdint>
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#include <fstream>
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#include <string>
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#include <vector>
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namespace EightBit {
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// Memory is:
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// *) Definitely has a size
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// *) Probably 'peek'able (although you might not like the answer you get!)
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// *) Probably 'load'able (i.e. able to be externally initialised)
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// *) At the implementation level, probably 'poke'able (although may not be exposed to users)
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// *) Possibly 'reference'able (Very likely if you've exposed 'poke')
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class Memory {
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public:
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virtual ~Memory() = default;
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[[nodiscard]] virtual uint16_t size() const noexcept = 0;
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[[nodiscard]] virtual uint8_t peek(uint16_t address) const noexcept = 0;
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[[nodiscard]] virtual uint8_t& reference(uint16_t) noexcept;
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virtual int load(std::ifstream& file, int writeOffset = 0, int readOffset = 0, int limit = -1) = 0;
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virtual int load(std::string path, int writeOffset = 0, int readOffset = 0, int limit = -1) = 0;
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virtual int load(const std::vector<uint8_t>& bytes, int writeOffset = 0, int readOffset = 0, int limit = -1) = 0;
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protected:
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virtual void poke(uint16_t address, uint8_t value) noexcept = 0;
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private:
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uint8_t m_delivered = 0xff;
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};
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}
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