101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
//Sony CXP1100Q-1
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struct SMP : Processor::SPC700, Thread {
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inline auto synchronizing() const -> bool override { return scheduler.synchronizing(); }
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//io.cpp
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auto portRead(uint2 port) const -> uint8;
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auto portWrite(uint2 port, uint8 data) -> void;
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//smp.cpp
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auto synchronizeCPU() -> void;
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auto synchronizeDSP() -> void;
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static auto Enter() -> void;
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auto main() -> void;
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auto load() -> bool;
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auto power(bool reset) -> void;
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//serialization.cpp
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auto serialize(serializer&) -> void;
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uint8 iplrom[64];
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private:
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struct IO {
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//timing
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uint clockCounter = 0;
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uint dspCounter = 0;
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//external
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uint8 apu0 = 0;
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uint8 apu1 = 0;
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uint8 apu2 = 0;
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uint8 apu3 = 0;
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//$00f0
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uint1 timersDisable = 0;
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uint1 ramWritable = 1;
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uint1 ramDisable = 0;
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uint1 timersEnable = 1;
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uint2 externalWaitStates = 0;
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uint2 internalWaitStates = 0;
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//$00f1
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uint1 iplromEnable = 1;
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//$00f2
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uint8 dspAddr = 0;
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//$00f4-00f7
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uint8 cpu0 = 0;
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uint8 cpu1 = 0;
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uint8 cpu2 = 0;
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uint8 cpu3 = 0;
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//$00f8-00f9
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uint8 aux4 = 0;
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uint8 aux5 = 0;
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} io;
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//memory.cpp
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inline auto readRAM(uint16 address) -> uint8;
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inline auto writeRAM(uint16 address, uint8 data) -> void;
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auto idle() -> void override;
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auto read(uint16 address) -> uint8 override;
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auto write(uint16 address, uint8 data) -> void override;
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auto readDisassembler(uint16 address) -> uint8 override;
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//io.cpp
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inline auto readIO(uint16 address) -> uint8;
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inline auto writeIO(uint16 address, uint8 data) -> void;
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//timing.cpp
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template<uint Frequency>
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struct Timer {
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uint8 stage0 = 0;
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uint8 stage1 = 0;
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uint8 stage2 = 0;
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uint4 stage3 = 0;
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boolean line = 0;
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boolean enable = 0;
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uint8 target = 0;
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auto step(uint clocks) -> void;
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auto synchronizeStage1() -> void;
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};
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Timer<128> timer0;
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Timer<128> timer1;
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Timer< 16> timer2;
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inline auto wait(maybe<uint16> address = nothing, bool half = false) -> void;
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inline auto waitIdle(maybe<uint16> address = nothing, bool half = false) -> void;
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inline auto step(uint clocks) -> void;
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inline auto stepIdle(uint clocks) -> void;
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inline auto stepTimers(uint clocks) -> void;
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};
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extern SMP smp;
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