Annotation of nono/vm/ram.h, revision 1.1.1.9

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: 
1.1.1.9 ! root        7: //
        !             8: // メインメモリ
        !             9: //
        !            10: 
1.1       root       11: #pragma once
                     12: 
                     13: #include "device.h"
                     14: 
1.1.1.8   root       15: class RAMDevice : public IODevice
1.1       root       16: {
1.1.1.3   root       17:        using inherited = IODevice;
1.1       root       18:  public:
                     19:        RAMDevice();
1.1.1.5   root       20:        virtual ~RAMDevice() override;
1.1       root       21: 
1.1.1.3   root       22:        bool Init() override;
1.1.1.9 ! root       23:        void ResetHard(bool poweron) override;
1.1       root       24: 
1.1.1.3   root       25:        uint64 Read8(uint32 addr) override;
                     26:        uint64 Read16(uint32 addr) override;
                     27:        uint64 Read32(uint32 addr) override;
                     28:        uint64 Write8(uint32 addr, uint32 data) override;
                     29:        uint64 Write16(uint32 addr, uint32 data) override;
                     30:        uint64 Write32(uint32 addr, uint32 data) override;
                     31:        uint64 Peek8(uint32 addr) override;
1.1.1.2   root       32: 
1.1.1.6   root       33:        // RAM 容量(バイト単位)を取得
                     34:        int GetSize() const     { return ram_size; }
                     35:        // RAM 容量(MB単位)を取得
                     36:        int GetSizeMB() const { return (uint)ram_size / 1024 / 1024; }
                     37: 
1.1.1.4   root       38:        // アクセスウェイトを設定
                     39:        void SetWait(uint32 wait);
                     40: 
1.1.1.2   root       41:        // ホストの filepath をロードする
1.1.1.6   root       42:        uint32 LoadFile(const char *filepath);
1.1.1.2   root       43:        // file, filesize で示されるバッファをロードする
1.1.1.6   root       44:        uint32 LoadFile(const char *name, const uint8 *file, size_t filesize);
1.1.1.9 ! root       45: 
1.1.1.2   root       46:  private:
1.1.1.6   root       47:        uint32 LoadGzFile(const char *filepath, const uint8 *file, size_t filesize);
                     48:        uint32 Load_aout(const char *name, const uint8 *file, size_t filesize);
                     49:        uint32 Load_elf32(const char *name, const uint8 *file, size_t filesize);
1.1.1.8   root       50:        bool Load_elf32_exec(const char *name, const uint8 *file, size_t filesize);
                     51:        uint32 Load_elf32_rel(const char *name, const uint8 *file, size_t filesize);
1.1.1.6   root       52: 
                     53:        // RAM 容量(バイト単位)。ram[] の確保したバイト数
                     54:        int ram_size {};
1.1.1.4   root       55: 
                     56:        uint32 read_wait {};
                     57:        uint32 write_wait {};
1.1       root       58: };
                     59: 
1.1.1.7   root       60: extern std::unique_ptr<uint8[]> mainram;
1.1.1.9 ! root       61: extern RAMDevice *gRAM;

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