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Annotation of nono/vm/mpu88xx0.h, revision 1.1.1.4

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:
                     18:        MPU88xx0Device(uint32 reset_addr);
1.1.1.2   root       19:        ~MPU88xx0Device() override;
1.1       root       20: 
1.1.1.3   root       21:        void MonitorUpdate(TextScreen&) override;
1.1       root       22: 
                     23:        // MPU を request サイクル分実行する
1.1.1.2   root       24:        uint32 Run(uint64 request) override { return cpu->Run(request); }
1.1       root       25: 
                     26:        // 基準サイクル数を取得
1.1.1.4 ! root       27:        uint64 total_cycle() const override { return cpu->GetTotalCycle(); }
1.1       root       28: 
                     29:        // MPU の処理をこの命令で中断させる。
1.1.1.2   root       30:        void Release() override { cpu->Release(); }
1.1       root       31: 
                     32:        // 現在実行中の命令の PC を取得
1.1.1.4 ! root       33:        uint32 GetPPC() const override { return cpu->GetXIP(); }
1.1       root       34: 
                     35:        // 現在アクセス中の論理アドレス、物理アドレスを取得。
1.1.1.2   root       36:        uint32 GetLaddr() const override { return 0; }  // XXX NotImplemented
                     37:        uint32 GetPaddr() const override { return 0; }  // XXX NotImplemented
1.1       root       38: 
1.1.1.4 ! root       39:        // アクセスウェイトを加算
        !            40:        void AddCycle(uint64 cycle) override;
        !            41: 
1.1       root       42:        // 割り込み発生を MPU に通知
1.1.1.2   root       43:        void Interrupt(Object *src, int level) override;
1.1       root       44: 
                     45:        // CPU コアを取得 (主にデバッグ用途)
                     46:        m88kcpu *GetCPU() const { return cpu.get(); }
                     47: 
                     48:  private:
1.1.1.4 ! root       49:        // リセット例外イベントコールバック
        !            50:        void ResetCallback(Event& ev);
        !            51: 
1.1       root       52:        // リセットベクタ
1.1.1.4 ! root       53:        uint32 reset_vector {};
1.1       root       54: 
1.1.1.4 ! root       55:        std::unique_ptr<m88kcpu> cpu {};
1.1       root       56: };
                     57: 
1.1.1.2   root       58: // ATC モニタ
                     59: class MPU88200ATC : public Object
                     60: {
                     61:  public:
                     62:        MPU88200ATC(m88200 *cmmu);
                     63:        ~MPU88200ATC() override { }
                     64: 
1.1.1.3   root       65:        void MonitorUpdate(TextScreen&) override;
1.1.1.2   root       66: 
                     67:  private:
1.1.1.4 ! root       68:        m88200 *cmmu {};
1.1.1.2   root       69: };
                     70: 
                     71: extern std::unique_ptr<MPU88200ATC> gMPU88200ATC[2];
                     72: 
1.1       root       73: #define gMPU88xx0      (dynamic_cast<MPU88xx0Device *>(gMPU.get()))

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