mirror of https://github.com/bsnes-emu/bsnes.git
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
struct Memory {
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virtual ~Memory() { reset(); }
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inline explicit operator bool() const { return size() > 0; }
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virtual auto reset() -> void {}
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virtual auto allocate(uint, uint8 = 0xff) -> void {}
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virtual auto data() -> uint8* = 0;
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virtual auto size() const -> uint = 0;
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virtual auto read(uint24 address, uint8 data = 0) -> uint8 = 0;
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virtual auto write(uint24 address, uint8 data) -> void = 0;
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uint id = 0;
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};
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#include "readable.hpp"
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#include "writable.hpp"
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#include "protectable.hpp"
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struct Bus {
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alwaysinline static auto mirror(uint address, uint size) -> uint;
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alwaysinline static auto reduce(uint address, uint mask) -> uint;
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~Bus();
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alwaysinline auto read(uint24 address, uint8 data) -> uint8;
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alwaysinline auto write(uint24 address, uint8 data) -> void;
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auto reset() -> void;
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auto map(
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const function<uint8 (uint24, uint8)>& read,
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const function<void (uint24, uint8)>& write,
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const string& address, uint size = 0, uint base = 0, uint mask = 0
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) -> uint;
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auto unmap(const string& address) -> void;
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private:
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uint8* lookup = nullptr;
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uint32* target = nullptr;
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function<uint8 (uint24, uint8)> reader[256];
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function<void (uint24, uint8)> writer[256];
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uint24 counter[256];
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};
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extern Bus bus;
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