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Annotation of nono/vm/partialram.h, revision 1.1.1.1

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
                      5: //
                      6: 
                      7: //
                      8: // LUNA* の RAM のうち 16MB に満たないメモリブロックを担当する人
                      9: //
                     10: 
                     11: #pragma once
                     12: 
                     13: #include "device.h"
                     14: 
                     15: class MainRAMDevice;
                     16: 
                     17: class PartialRAMDevice : public IOContainerDevice
                     18: {
                     19:        using inherited = IOContainerDevice;
                     20:  public:
                     21:        PartialRAMDevice();
                     22:        virtual ~PartialRAMDevice() override;
                     23: 
                     24:        bool Init() override;
                     25: 
                     26:        uint64 Read8(uint32 addr) override;
                     27:        uint64 Read16(uint32 addr) override;
                     28:        uint64 Read32(uint32 addr) override;
                     29:        uint64 Write8(uint32 addr, uint32 data) override;
                     30:        uint64 Write16(uint32 addr, uint32 data) override;
                     31:        uint64 Write32(uint32 addr, uint32 data) override;
                     32:        uint64 Peek8(uint32 addr) override;
                     33: 
                     34:  protected:
                     35:        IODevice *GetDevice(uint32 addr) const override;
                     36: 
                     37:  private:
                     38:        inline IODevice *SearchDevice(uint32 addr) const;
                     39: 
                     40:        uint32 ram_size {};
                     41: 
                     42:        MainRAMDevice *ramdev {};
                     43:        IODevice *nopdev {};
                     44: };
                     45: 
                     46: static inline PartialRAMDevice *GetPartialRAMDevice() {
                     47:        return Object::GetObject<PartialRAMDevice>(OBJ_PARTIAL_RAM);
                     48: }

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