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Annotation of nono/vm/prom.h, revision 1.1.1.10

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
                      5: //
                      6: 
1.1.1.7   root        7: //
1.1.1.9   root        8: // PROM (LUNA-I, LUNA-88K 共通)
1.1.1.7   root        9: //
                     10: 
1.1       root       11: #pragma once
                     12: 
                     13: #include "rom.h"
                     14: 
1.1.1.6   root       15: class PROM0Device : public IODevice
                     16: {
                     17:        using inherited = IODevice;
                     18:  public:
                     19:        PROM0Device();
1.1.1.10! root       20:        ~PROM0Device() override;
1.1.1.6   root       21: 
                     22:        bool Init() override;
1.1.1.7   root       23:        void ResetHard(bool poweron) override;
1.1.1.6   root       24: 
1.1.1.10! root       25:        busdata Read8(uint32 addr) override;
        !            26:        busdata Read16(uint32 addr) override;
        !            27:        busdata Read32(uint32 addr) override;
        !            28:        busdata Write8(uint32 addr, uint32 data) override;
        !            29:        busdata Write16(uint32 addr, uint32 data) override;
        !            30:        busdata Write32(uint32 addr, uint32 data) override;
        !            31:        busdata Peek8(uint32 addr) override;
1.1.1.6   root       32: 
                     33:  private:
                     34:        // アドレスデコーダ
                     35:        static uint32 Decoder(uint32 addr);
                     36: 
                     37:        // 書き込みの共通部分
1.1.1.10! root       38:        busdata Write();
1.1.1.6   root       39: 
                     40:        IODevice *prom {};
                     41: };
                     42: 
1.1.1.5   root       43: class PROMDevice : public ROMDevice
1.1       root       44: {
                     45:        using inherited = ROMDevice;
                     46:  public:
                     47:        PROMDevice();
1.1.1.10! root       48:        ~PROMDevice() override;
1.1       root       49: 
                     50:        bool Init() override;
                     51: 
1.1.1.9   root       52:        int GetROMVer() const { return romver; }
                     53: 
1.1       root       54:  private:
1.1.1.4   root       55:        bool InitLuna1();
1.1       root       56:        bool InitLuna88k();
1.1.1.9   root       57: 
                     58:        // PROM バージョン。
                     59:        // 100倍した整数形式で持つ。0 ならバージョン不明。
                     60:        int romver {};
1.1       root       61: };
                     62: 
1.1.1.9   root       63: static inline PROM0Device *GetPROM0Device() {
                     64:        return Object::GetObject<PROM0Device>(OBJ_PROM_BOOT);
                     65: }
                     66: 
                     67: // PROM(現物)と ROMEMU の共通層である ROMDevice を返す。
                     68: // 区別が必要なら呼び出し側でもう一度 dynamic_cast<> すること。
                     69: static inline ROMDevice *GetPROMDevice() {
                     70:        return Object::GetObject<ROMDevice>(OBJ_PROM);
                     71: }

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