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Annotation of nono/vm/sio.h, revision 1.1.1.9

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: 
                     13: #include "device.h"
1.1.1.9 ! root       14: #include "mpscc.h"
1.1       root       15: 
1.1.1.9 ! root       16: class SIODevice : public MPSCCDevice
1.1       root       17: {
1.1.1.9 ! root       18:        using inherited = MPSCCDevice;
1.1       root       19:  public:
                     20:        SIODevice();
1.1.1.5   root       21:        virtual ~SIODevice() override;
1.1       root       22: 
1.1.1.9 ! root       23:        void ResetHard(bool poweron) override;
        !            24: 
1.1.1.6   root       25:        // BusIO インタフェース
                     26:        // (内蔵 ROM からのアクセス用に特別に public にしてある)
                     27:        uint64 Read(uint32 offset);
                     28:        uint64 Write(uint32 offset, uint32 data);
1.1       root       29: 
1.1.1.3   root       30:  protected:
                     31:        // BusIO インタフェース
                     32:        static const uint32 NPORT = 4;
1.1.1.6   root       33:        uint64 Peek(uint32 offset);
1.1       root       34: 
1.1.1.8   root       35:        void Tx(int ch, uint32 data) override;
1.1.1.9 ! root       36:        uint GetHighestInt() const override;
1.1.1.8   root       37: 
1.1       root       38:  private:
1.1.1.9 ! root       39:        // 指定のレジスタ名を返す
        !            40:        const char *CRName(const MPSCCChan&, int n) const override;
        !            41:        const char *SRName(const MPSCCChan&, int n) const override;
        !            42:        // 現在のレジスタ名を返す
        !            43:        const char *CRName(const MPSCCChan& chan) const {
        !            44:                return CRName(chan, chan.ptr);
        !            45:        }
        !            46:        const char *SRName(const MPSCCChan& chan) const {
        !            47:                return SRName(chan, chan.ptr);
        !            48:        }
        !            49: 
        !            50:        void ResetChannel(MPSCCChan&);
        !            51: 
        !            52:        uint8 ReadCtrl(MPSCCChan&);
        !            53:        void WriteCtrl(MPSCCChan&, uint32 data);
        !            54:        uint8 PeekCtrl(const MPSCCChan&) const;
        !            55: 
        !            56:        uint8 GetCR1(const MPSCCChan&) const;
        !            57:        uint8 GetCR2A() const;
        !            58:        uint8 GetCR2B() const;
        !            59:        uint8 GetSR0(const MPSCCChan&) const;
        !            60: 
        !            61:        void WriteCR0(MPSCCChan&, uint32 data);
        !            62:        void WriteCR1(MPSCCChan&, uint32 data);
        !            63:        void WriteCR2(MPSCCChan&, uint32 data);
        !            64: 
        !            65:        // VIS モードを更新
        !            66:        void SetVIS();
        !            67: 
        !            68:        DECLARE_MONITOR_CALLBACK(MonitorUpdate);
        !            69:        void MonitorUpdateCh(TextScreen&, int ch, int xbase, int ybase);
        !            70: 
        !            71:        static const char * const crnames[16];
        !            72:        static const char * const srnames[16];
1.1       root       73: };
                     74: 
1.1.1.9 ! root       75: extern SIODevice *gSIO;

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