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Annotation of nono/vm/mpu88xx0.h, revision 1.1.1.7

1.1       root        1: //
                      2: // nono
1.1.1.2   root        3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
1.1       root        5: //
                      6: 
                      7: // MPU (m88xx0)
                      8: 
                      9: #pragma once
                     10: 
                     11: #include "mpu.h"
                     12: #include "m88100.h"
                     13: 
                     14: class MPU88xx0Device : public MPUDevice
                     15: {
1.1.1.2   root       16:        using inherited = MPUDevice;
1.1       root       17:  public:
1.1.1.5   root       18:        MPU88xx0Device(uint32 reset_vector);
                     19:        virtual ~MPU88xx0Device() override;
                     20: 
                     21:        bool Init() override;
1.1       root       22: 
1.1.1.3   root       23:        void MonitorUpdate(TextScreen&) override;
1.1       root       24: 
1.1.1.5   root       25:        // MPU を vtime [nsec] 分実行する
                     26:        uint32 Run(uint32 vtime) override { return cpu->Run(vtime); }
1.1       root       27: 
1.1.1.5   root       28:        // 現在の仮想時刻 [nsec] を取得する
1.1.1.6   root       29:        uint64 GetVirtTime() const override { return cpu->GetVTime(); }
1.1       root       30: 
                     31:        // MPU の処理をこの命令で中断させる。
1.1.1.2   root       32:        void Release() override { cpu->Release(); }
1.1       root       33: 
                     34:        // 現在実行中の命令の PC を取得
1.1.1.4   root       35:        uint32 GetPPC() const override { return cpu->GetXIP(); }
1.1       root       36: 
                     37:        // 現在アクセス中の論理アドレス、物理アドレスを取得。
1.1.1.7 ! root       38:        uint32 GetLaddr() const override;
        !            39:        uint32 GetPaddr() const override;
1.1       root       40: 
1.1.1.4   root       41:        // アクセスウェイトを加算
1.1.1.5   root       42:        void AddCycle(int32 cycle) override;
1.1.1.4   root       43: 
1.1       root       44:        // 割り込み発生を MPU に通知
1.1.1.5   root       45:        void Interrupt(int level) override;
1.1       root       46: 
                     47:        // CPU コアを取得 (主にデバッグ用途)
                     48:        m88kcpu *GetCPU() const { return cpu.get(); }
                     49: 
                     50:  private:
1.1.1.5   root       51:        // イベントコールバック
                     52:        void Callback(Event& ev);
1.1       root       53: 
1.1.1.4   root       54:        std::unique_ptr<m88kcpu> cpu {};
1.1       root       55: };
                     56: 
1.1.1.2   root       57: // ATC モニタ
                     58: class MPU88200ATC : public Object
                     59: {
                     60:  public:
                     61:        MPU88200ATC(m88200 *cmmu);
                     62:        ~MPU88200ATC() override { }
                     63: 
1.1.1.3   root       64:        void MonitorUpdate(TextScreen&) override;
1.1.1.2   root       65: 
                     66:  private:
1.1.1.4   root       67:        m88200 *cmmu {};
1.1.1.2   root       68: };
                     69: 
                     70: extern std::unique_ptr<MPU88200ATC> gMPU88200ATC[2];
                     71: 
1.1       root       72: #define gMPU88xx0      (dynamic_cast<MPU88xx0Device *>(gMPU.get()))

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