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

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: 
1.1.1.11  root       25:        busdata Read(busaddr addr) override;
                     26:        busdata Write(busaddr addr, uint32 data) override;
                     27:        busdata Peek1(uint32 addr) override;
1.1.1.6   root       28: 
                     29:  private:
                     30:        // アドレスデコーダ
                     31:        static uint32 Decoder(uint32 addr);
                     32: 
                     33:        // 書き込みの共通部分
1.1.1.10  root       34:        busdata Write();
1.1.1.6   root       35: 
                     36:        IODevice *prom {};
                     37: };
                     38: 
1.1.1.5   root       39: class PROMDevice : public ROMDevice
1.1       root       40: {
                     41:        using inherited = ROMDevice;
                     42:  public:
                     43:        PROMDevice();
1.1.1.10  root       44:        ~PROMDevice() override;
1.1       root       45: 
                     46:        bool Init() override;
                     47: 
1.1.1.11  root       48:        uint GetROMVer() const { return romver; }
1.1.1.9   root       49: 
1.1       root       50:  private:
1.1.1.4   root       51:        bool InitLuna1();
1.1       root       52:        bool InitLuna88k();
1.1.1.9   root       53: 
                     54:        // PROM バージョン。
                     55:        // 100倍した整数形式で持つ。0 ならバージョン不明。
1.1.1.11  root       56:        uint romver {};
1.1       root       57: };
                     58: 
1.1.1.12! root       59: inline PROM0Device *GetPROM0Device() {
1.1.1.9   root       60:        return Object::GetObject<PROM0Device>(OBJ_PROM_BOOT);
                     61: }
                     62: 
                     63: // PROM(現物)と ROMEMU の共通層である ROMDevice を返す。
                     64: // 区別が必要なら呼び出し側でもう一度 dynamic_cast<> すること。
1.1.1.12! root       65: inline ROMDevice *GetPROMDevice() {
1.1.1.9   root       66:        return Object::GetObject<ROMDevice>(OBJ_PROM);
                     67: }

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