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Annotation of nono/vm/sio.h, revision 1.1.1.11

1.1       root        1: //
                      2: // nono
1.1.1.4   root        3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
1.1       root        5: //
                      6: 
1.1.1.9   root        7: //
                      8: // SIO (uPD7201)
                      9: //
                     10: 
1.1       root       11: #pragma once
                     12: 
1.1.1.9   root       13: #include "mpscc.h"
1.1       root       14: 
1.1.1.10  root       15: class Keyboard;
                     16: 
1.1.1.9   root       17: class SIODevice : public MPSCCDevice
1.1       root       18: {
1.1.1.9   root       19:        using inherited = MPSCCDevice;
1.1       root       20:  public:
                     21:        SIODevice();
1.1.1.11! root       22:        ~SIODevice() override;
1.1       root       23: 
1.1.1.10  root       24:        bool Init() override;
1.1.1.9   root       25:        void ResetHard(bool poweron) override;
                     26: 
1.1.1.6   root       27:        // BusIO インタフェース
                     28:        // (内蔵 ROM からのアクセス用に特別に public にしてある)
1.1.1.11! root       29:        busdata Read(uint32 offset);
        !            30:        busdata Write(uint32 offset, uint32 data);
1.1       root       31: 
1.1.1.3   root       32:  protected:
                     33:        // BusIO インタフェース
                     34:        static const uint32 NPORT = 4;
1.1.1.11! root       35:        busdata Peek(uint32 offset);
1.1       root       36: 
1.1.1.8   root       37:        void Tx(int ch, uint32 data) override;
1.1.1.9   root       38:        uint GetHighestInt() const override;
1.1.1.8   root       39: 
1.1       root       40:  private:
1.1.1.9   root       41:        // 指定のレジスタ名を返す
                     42:        const char *CRName(const MPSCCChan&, int n) const override;
                     43:        const char *SRName(const MPSCCChan&, int n) const override;
                     44:        // 現在のレジスタ名を返す
                     45:        const char *CRName(const MPSCCChan& chan) const {
                     46:                return CRName(chan, chan.ptr);
                     47:        }
                     48:        const char *SRName(const MPSCCChan& chan) const {
                     49:                return SRName(chan, chan.ptr);
                     50:        }
                     51: 
                     52:        void ResetChannel(MPSCCChan&);
                     53: 
                     54:        uint8 ReadCtrl(MPSCCChan&);
                     55:        void WriteCtrl(MPSCCChan&, uint32 data);
                     56:        uint8 PeekCtrl(const MPSCCChan&) const;
                     57: 
                     58:        uint8 GetCR1(const MPSCCChan&) const;
                     59:        uint8 GetCR2A() const;
                     60:        uint8 GetCR2B() const;
                     61:        uint8 GetSR0(const MPSCCChan&) const;
                     62: 
                     63:        void WriteCR0(MPSCCChan&, uint32 data);
                     64:        void WriteCR1(MPSCCChan&, uint32 data);
                     65:        void WriteCR2(MPSCCChan&, uint32 data);
                     66: 
                     67:        // VIS モードを更新
                     68:        void SetVIS();
                     69: 
                     70:        DECLARE_MONITOR_CALLBACK(MonitorUpdate);
                     71:        void MonitorUpdateCh(TextScreen&, int ch, int xbase, int ybase);
                     72: 
1.1.1.10  root       73:        Keyboard *keyboard {};
                     74: 
1.1.1.9   root       75:        static const char * const crnames[16];
                     76:        static const char * const srnames[16];
1.1       root       77: };
                     78: 
1.1.1.10  root       79: static inline SIODevice *GetSIODevice() {
                     80:        return Object::GetObject<SIODevice>(OBJ_MPSCC);
                     81: }

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