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Annotation of nono/vm/nmi.h, revision 1.1.1.2

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2021 nono project
                      4: // Licensed under nono-license.txt
                      5: //
                      6: 
                      7: //
                      8: // ABORT/INTERRUPT スイッチによる NMI 機構デバイス
                      9: //
                     10: 
                     11: #pragma once
                     12: 
                     13: #include "device.h"
                     14: #include "message.h"
                     15: #include "event.h"
                     16: 
1.1.1.2 ! root       17: class InterruptDevice;
        !            18: 
1.1       root       19: class NMIDevice : public Device
                     20: {
                     21:        using inherited = Device;
                     22:  public:
                     23:        NMIDevice();
                     24:        ~NMIDevice() override;
                     25: 
                     26:        bool Init() override;
                     27: 
                     28:        // NMI ボタンを押す
                     29:        void PressNMI();
                     30: 
                     31:        // NMI 信号線をアサートする
                     32:        void AssertNMI();
                     33: 
                     34:        // NMI 信号線をネゲートする
                     35:        void NegateNMI();
                     36: 
                     37:  private:
                     38:        void AssertCallback(MessageID, uint32);
                     39:        void NegateCallback(Event& ev);
                     40: 
1.1.1.2 ! root       41:        InterruptDevice *interrupt {};
        !            42: 
1.1       root       43:        Event event { this };
                     44: };
                     45: 
1.1.1.2 ! root       46: static inline NMIDevice *GetNMIDevice() {
        !            47:        return Object::GetObject<NMIDevice>(OBJ_NMI);
        !            48: }

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