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Annotation of nono/vm/videoctlr.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: #pragma once
        !             8: 
        !             9: #include "device.h"
        !            10: 
        !            11: class VideoCtlrDevice
        !            12:        : public IODevice
        !            13: {
        !            14:        using inherited = IODevice;
        !            15:  private:
        !            16:        static const int baseaddr = 0xe82000;
        !            17: 
        !            18:        struct videoctlr {
        !            19:                uint16 r0;
        !            20:                uint16 r1;
        !            21:                uint16 r2;
        !            22:        };
        !            23: 
        !            24:  public:
        !            25:        VideoCtlrDevice();
        !            26:        ~VideoCtlrDevice() override;
        !            27: 
        !            28:        // パレットのバッファアドレスを取得
        !            29:        // レンダラとかからの参照用?
        !            30:        const uint16 *GetPalette() const { return &palette.w[0]; }
        !            31: 
        !            32:  protected:
        !            33:        // BusIO インタフェース
        !            34:        static const uint NPORT = 4096;
        !            35:        uint64 Read(uint32 addr);
        !            36:        uint64 Write(uint32 addr, uint32 data);
        !            37:        uint64 Peek(uint32 addr);
        !            38: 
        !            39:  private:
        !            40:        void SetR0(uint32 data);
        !            41:        void SetR1(uint32 data);
        !            42:        void SetR2(uint32 data);
        !            43: 
        !            44:        struct videoctlr videoctlr {};
        !            45:        union {
        !            46:                uint8 b[1024];
        !            47:                uint16 w[512];
        !            48:        } palette {};
        !            49: };
        !            50: 
        !            51: extern std::unique_ptr<VideoCtlrDevice> gVideoCtlr;

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