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

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2022 nono project
                      4: // Licensed under nono-license.txt
                      5: //
                      6: 
                      7: //
                      8: // NEWS の各種制御ポート(?)
                      9: //
                     10: 
                     11: #pragma once
                     12: 
                     13: #include "device.h"
                     14: #include "event.h"
                     15: #include <array>
                     16: 
                     17: class DipswDevice;
                     18: class NewsInterrupt;
                     19: 
                     20: class NewsCtlrDevice : public IODevice
                     21: {
                     22:        using inherited = IODevice;
                     23: 
                     24:  public:
                     25:        // LED 種別
                     26:        static const uint LED_GREEN             = 0x01;
                     27:        static const uint LED_ORANGE    = 0x02;
                     28: 
                     29:  public:
                     30:        NewsCtlrDevice();
                     31:        ~NewsCtlrDevice() override;
                     32: 
                     33:        bool Init() override;
                     34:        void ResetHard(bool poweron) override;
                     35: 
                     36:        uint64 Read8(uint32 addr) override;
                     37:        uint64 Write8(uint32 addr, uint32 data) override;
                     38:        uint64 Peek8(uint32 addr) override;
                     39: 
1.1.1.2 ! root       40:        uint GetLED() const { return led; }
1.1       root       41: 
                     42:  private:
                     43:        uint8 GetIDROM(uint32 addr) const;
                     44:        uint8 GetDIPSW() const;
                     45:        void WriteLED(uint32 data);
                     46:        void WriteTimer(uint32 data);
                     47:        void TimerCallback(Event&);
                     48:        void ChangeInterrupt();
                     49: 
                     50:        // 割り込みコントローラ
                     51:        NewsInterrupt *interrupt {};
                     52: 
                     53:        // 256 x 4bit ROM (ここではデータをバイト単位で保持する)
                     54:        std::array<uint8, 128> oidrom {};
                     55: 
1.1.1.2 ! root       56:        uint led {};
1.1       root       57:        // タイマー
                     58:        bool timer_intr {};
                     59:        bool timer_enable {};
                     60: 
                     61:        DipswDevice *dipsw {};
                     62: 
                     63:        Event timer_event { this };
                     64: };
                     65: 
                     66: static inline NewsCtlrDevice *GetNewsCtlrDevice() {
                     67:        return Object::GetObject<NewsCtlrDevice>(OBJ_NEWSCTLR);
                     68: }

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