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Annotation of nono/vm/ram.h, revision 1.1.1.7

1.1       root        1: //
                      2: // nono
1.1.1.3   root        3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
1.1       root        5: //
                      6: 
                      7: #pragma once
                      8: 
                      9: #include "device.h"
                     10: 
                     11: class RAMDevice
                     12:        : public IODevice
                     13: {
1.1.1.3   root       14:        using inherited = IODevice;
1.1       root       15:  public:
                     16:        RAMDevice();
1.1.1.5   root       17:        virtual ~RAMDevice() override;
1.1       root       18: 
1.1.1.3   root       19:        bool Init() override;
1.1.1.7 ! root       20:        bool PowerOn() override;
1.1.1.4   root       21:        void ResetHard() override;
1.1       root       22: 
1.1.1.3   root       23:        uint64 Read8(uint32 addr) override;
                     24:        uint64 Read16(uint32 addr) override;
                     25:        uint64 Read32(uint32 addr) override;
                     26:        uint64 Write8(uint32 addr, uint32 data) override;
                     27:        uint64 Write16(uint32 addr, uint32 data) override;
                     28:        uint64 Write32(uint32 addr, uint32 data) override;
                     29:        uint64 Peek8(uint32 addr) override;
1.1.1.2   root       30: 
1.1.1.6   root       31:        // RAM 容量(バイト単位)を取得
                     32:        int GetSize() const     { return ram_size; }
                     33:        // RAM 容量(MB単位)を取得
                     34:        int GetSizeMB() const { return (uint)ram_size / 1024 / 1024; }
                     35: 
1.1.1.4   root       36:        // アクセスウェイトを設定
                     37:        void SetWait(uint32 wait);
                     38: 
1.1.1.2   root       39:        // ホストの filepath をロードする
1.1.1.6   root       40:        uint32 LoadFile(const char *filepath);
1.1.1.2   root       41:        // file, filesize で示されるバッファをロードする
1.1.1.6   root       42:        uint32 LoadFile(const char *name, const uint8 *file, size_t filesize);
1.1.1.2   root       43:  private:
1.1.1.6   root       44:        uint32 LoadGzFile(const char *filepath, const uint8 *file, size_t filesize);
                     45:        uint32 Load_aout(const char *name, const uint8 *file, size_t filesize);
                     46:        uint32 Load_elf32(const char *name, const uint8 *file, size_t filesize);
                     47: 
                     48:        // RAM 容量(バイト単位)。ram[] の確保したバイト数
                     49:        int ram_size {};
1.1.1.4   root       50: 
                     51:        uint32 read_wait {};
                     52:        uint32 write_wait {};
1.1       root       53: };
                     54: 
1.1.1.7 ! root       55: extern std::unique_ptr<uint8[]> mainram;
1.1.1.2   root       56: extern std::unique_ptr<RAMDevice> gRAM;

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