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Annotation of nono/vm/opm.h, revision 1.1.1.4

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
                      5: //
                      6: 
1.1.1.4 ! root        7: //
        !             8: // OPM (YM2151)
        !             9: //
        !            10: 
1.1       root       11: #pragma once
                     12: 
                     13: #include "device.h"
                     14: 
1.1.1.3   root       15: class OPMDevice : public IODevice
1.1       root       16: {
                     17:        using inherited = IODevice;
1.1.1.4 ! root       18: 
1.1       root       19:        static const int baseaddr = 0xe90000;
                     20: 
                     21:  public:
                     22:        OPMDevice();
                     23:        virtual ~OPMDevice() override;
                     24: 
                     25:  protected:
                     26:        // BusIO インタフェース
                     27:        static const uint32 NPORT = 2;
1.1.1.2   root       28:        uint64 Read(uint32 offset);
                     29:        uint64 Write(uint32 offset, uint32 data);
                     30:        uint64 Peek(uint32 offset);
1.1.1.4 ! root       31: 
        !            32:  private:
        !            33:        int reg {};             // アクセスレジスタ番号
1.1       root       34: };
                     35: 
1.1.1.4 ! root       36: extern OPMDevice *gOPM;

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