mirror of https://github.com/bsnes-emu/bsnes.git
55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
//Motorola 68000
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struct CPU : Processor::M68K, Processor::M68K::Bus, Thread {
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enum class Interrupt : uint {
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Reset,
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HorizontalBlank,
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VerticalBlank,
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};
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using Thread::synchronize;
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//cpu.cpp
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static auto Enter() -> void;
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auto main() -> void;
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auto step(uint clocks) -> void override;
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auto synchronize() -> void;
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auto raise(Interrupt) -> void;
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auto lower(Interrupt) -> void;
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auto load(Markup::Node) -> bool;
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auto power() -> void;
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//bus.cpp
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auto readByte(uint24 address) -> uint16 override;
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auto readWord(uint24 address) -> uint16 override;
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auto writeByte(uint24 address, uint16 data) -> void override;
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auto writeWord(uint24 address, uint16 data) -> void override;
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auto readIO(uint24 address) -> uint16;
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auto writeIO(uint24 address, uint16 data) -> void;
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//serialization.cpp
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auto serialize(serializer&) -> void;
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vector<Thread*> peripherals;
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private:
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uint8 ram[64 * 1024];
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uint8 tmss[2 * 1024];
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uint1 tmssEnable;
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struct IO {
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boolean version; //0 = Model 1; 1 = Model 2+
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boolean romEnable;
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boolean vdpEnable[2];
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} io;
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struct State {
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uint32 interruptLine;
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uint32 interruptPending;
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} state;
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};
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extern CPU cpu;
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