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Annotation of nono/vm/tas.h, revision 1.1

1.1     ! root        1: //
        !             2: // nono
        !             3: // Copyright (C) 2020 nono project
        !             4: // Licensed under nono-license.txt
        !             5: //
        !             6: 
        !             7: // TAS ポート
        !             8: 
        !             9: #pragma once
        !            10: 
        !            11: #include "device.h"
        !            12: #include <atomic>
        !            13: 
        !            14: class TASDevice
        !            15:        : public IODevice
        !            16: {
        !            17:        using inherited = IODevice;
        !            18:  public:
        !            19:        TASDevice();
        !            20:        ~TASDevice() override;
        !            21: 
        !            22:  protected:
        !            23:        // BusIO インタフェース
        !            24:        static const uint32 NPORT = 1;
        !            25:        uint64 Read(uint32 addr);
        !            26:        uint64 Write(uint32 addr, uint32 data);
        !            27:        uint64 Peek(uint32 addr);
        !            28: 
        !            29:  private:
        !            30:        std::atomic<uint8> tas {};      // bit 7 のみ有効。
        !            31: };
        !            32: 
        !            33: extern std::unique_ptr<TASDevice> gTAS;

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