mirror of https://github.com/bsnes-emu/bsnes.git
32 lines
686 B
C++
32 lines
686 B
C++
struct IO {
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virtual auto portRead(uint16 addr) -> uint8 = 0;
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virtual auto portWrite(uint16 addr, uint8 data) -> void = 0;
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};
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struct InternalRAM {
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auto power() -> void;
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auto read(uint16 addr, uint size = Byte) -> uint32;
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auto write(uint16 addr, uint8 data) -> void;
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private:
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uint8 memory[65536];
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};
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struct Bus {
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auto power() -> void;
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auto read(uint20 addr) -> uint8;
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auto write(uint20 addr, uint8 data) -> void;
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auto map(IO* io, uint16_t lo, maybe<uint16_t> hi = nothing) -> void;
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auto portRead(uint16 addr) -> uint8;
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auto portWrite(uint16 addr, uint8 data) -> void;
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private:
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IO* port[64 * 1024] = {nullptr};
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};
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extern InternalRAM iram;
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extern Bus bus;
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