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Annotation of nono/vm/sio.h, revision 1.1.1.12

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)
1.1.1.12! root       29:        busdata ReadPort(uint32 offset);
        !            30:        busdata WritePort(uint32 offset, uint32 data);
1.1.1.3   root       31:  protected:
1.1.1.12! root       32:        busdata PeekPort(uint32 offset);
1.1       root       33: 
1.1.1.8   root       34:        void Tx(int ch, uint32 data) override;
1.1.1.9   root       35:        uint GetHighestInt() const override;
1.1.1.8   root       36: 
1.1       root       37:  private:
1.1.1.9   root       38:        // 指定のレジスタ名を返す
1.1.1.12! root       39:        const char *CRName(const MPSCCChan&, uint n) const override;
        !            40:        const char *SRName(const MPSCCChan&, uint n) const override;
1.1.1.9   root       41:        // 現在のレジスタ名を返す
                     42:        const char *CRName(const MPSCCChan& chan) const {
                     43:                return CRName(chan, chan.ptr);
                     44:        }
                     45:        const char *SRName(const MPSCCChan& chan) const {
                     46:                return SRName(chan, chan.ptr);
                     47:        }
                     48: 
                     49:        void ResetChannel(MPSCCChan&);
                     50: 
                     51:        uint8 ReadCtrl(MPSCCChan&);
                     52:        void WriteCtrl(MPSCCChan&, uint32 data);
                     53:        uint8 PeekCtrl(const MPSCCChan&) const;
                     54: 
                     55:        uint8 GetCR1(const MPSCCChan&) const;
                     56:        uint8 GetCR2A() const;
                     57:        uint8 GetCR2B() const;
                     58:        uint8 GetSR0(const MPSCCChan&) const;
                     59: 
                     60:        void WriteCR0(MPSCCChan&, uint32 data);
                     61:        void WriteCR1(MPSCCChan&, uint32 data);
                     62:        void WriteCR2(MPSCCChan&, uint32 data);
                     63: 
                     64:        // VIS モードを更新
                     65:        void SetVIS();
                     66: 
                     67:        DECLARE_MONITOR_CALLBACK(MonitorUpdate);
                     68:        void MonitorUpdateCh(TextScreen&, int ch, int xbase, int ybase);
                     69: 
1.1.1.10  root       70:        Keyboard *keyboard {};
                     71: 
1.1.1.9   root       72:        static const char * const crnames[16];
                     73:        static const char * const srnames[16];
1.1       root       74: };
                     75: 
1.1.1.10  root       76: static inline SIODevice *GetSIODevice() {
                     77:        return Object::GetObject<SIODevice>(OBJ_MPSCC);
                     78: }

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