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Annotation of nono/vm/mpu88xx0.h, revision 1.1.1.3

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: 
1.1.1.2   root       21:        void ResetHard() override;
1.1       root       22: 
1.1.1.3 ! root       23:        void MonitorUpdate(TextScreen&) override;
1.1       root       24: 
                     25:        // MPU を request サイクル分実行する
1.1.1.2   root       26:        uint32 Run(uint64 request) override { return cpu->Run(request); }
1.1       root       27: 
                     28:        // 基準サイクル数を取得
1.1.1.2   root       29:        uint64 total_cycle() const override { return cpu->total_cycle; }
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
1.1.1.2   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。
1.1.1.2   root       38:        uint32 GetLaddr() const override { return 0; }  // XXX NotImplemented
                     39:        uint32 GetPaddr() const override { return 0; }  // XXX NotImplemented
1.1       root       40: 
                     41:        // 割り込み発生を MPU に通知
1.1.1.2   root       42:        void Interrupt(Object *src, int level) override;
1.1       root       43: 
                     44:        // CPU コアを取得 (主にデバッグ用途)
                     45:        m88kcpu *GetCPU() const { return cpu.get(); }
                     46: 
                     47:  private:
                     48:        // リセットベクタ
                     49:        uint32 reset_vector;
                     50: 
                     51:        std::unique_ptr<m88kcpu> cpu;
                     52: };
                     53: 
1.1.1.2   root       54: // ATC モニタ
                     55: class MPU88200ATC : public Object
                     56: {
                     57:  public:
                     58:        MPU88200ATC(m88200 *cmmu);
                     59:        ~MPU88200ATC() override { }
                     60: 
1.1.1.3 ! root       61:        void MonitorUpdate(TextScreen&) override;
1.1.1.2   root       62: 
                     63:  private:
                     64:        m88200 *cmmu = NULL;
                     65: };
                     66: 
                     67: extern std::unique_ptr<MPU88200ATC> gMPU88200ATC[2];
                     68: 
1.1       root       69: #define gMPU88xx0      (dynamic_cast<MPU88xx0Device *>(gMPU.get()))

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