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

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
                      5: //
                      6: 
                      7: // LUNA88K のシステムコントローラのような何か
                      8: 
                      9: #pragma once
                     10: 
                     11: #include "device.h"
                     12: 
                     13: class SysCtlrDevice
                     14:        : public IODevice
                     15: {
                     16:        using inherited = IODevice;
                     17:  public:
                     18:        SysCtlrDevice();
                     19:        ~SysCtlrDevice() override;
                     20: 
1.1.1.2 ! root       21:        void MonitorUpdate(TextScreen&) override;
1.1       root       22: 
                     23:        uint64 Read32(uint32 addr) override;
                     24:        uint64 Write32(uint32 addr, uint32 data) override;
                     25:        uint64 Peek8(uint32 addr) override;
                     26: 
                     27:        uint8 GetIntMask(int id) const { return intmask[id]; }
                     28:        void  TellIntLevel(int id, int level) { intlevel[id] |= level; }
                     29:  private:
                     30:        uint8 intmask[4] {};
                     31:        // 発生した割り込みのレベルビットマップ
                     32:        uint8 intlevel[4] {};
                     33: };
                     34: 
                     35: extern std::unique_ptr<SysCtlrDevice> gSysCtlr;

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