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1.1 root 1: //
2: // nono
1.1.1.3 root 3: // Copyright (C) 2020 nono project
4: // Licensed under nono-license.txt
1.1 root 5: //
6:
7: #pragma once
8:
9: #include "device.h"
10: #include <mutex>
11:
12: class ZRAMDevice
13: : public IODevice
14: {
1.1.1.3 root 15: using inherited = IODevice;
1.1 root 16: public:
17: ZRAMDevice();
1.1.1.4 ! root 18: virtual ~ZRAMDevice() override;
1.1 root 19:
1.1.1.3 root 20: uint64 Read8(uint32 addr) override;
21: uint64 Read16(uint32 addr) override;
22: uint64 Read32(uint32 addr) override;
23: uint64 Write8(uint32 addr, uint32 data) override;
24: uint64 Write16(uint32 addr, uint32 data) override;
25: uint64 Write32(uint32 addr, uint32 data) override;
26: uint64 Peek8(uint32 addr) override;
1.1 root 27:
28: private:
1.1.1.2 root 29: // アドレスデコーダ
30: uint64 Decoder(uint32 addr) const;
31:
32: std::unique_ptr<uint8[]> ram {};
1.1 root 33:
34: // アクセス競合を防ぐロック。
35: // Lance は裏スレッドからアクセスにくるので。
36: std::mutex mtx {};
37: };
38:
1.1.1.2 root 39: extern std::unique_ptr<ZRAMDevice> gZRAM;
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