--- nono/vm/nereid.h	2026/04/29 17:05:25	1.1.1.2
+++ nono/vm/nereid.h	2026/04/29 17:05:29	1.1.1.3
@@ -29,11 +29,9 @@ class NereidDevice : public IODevice
 
 	bool Create() override;
 
-	busdata Read8(uint32 addr) override;
-	busdata Read16(uint32 addr) override;
-	busdata Write8(uint32 addr, uint32 data) override;
-	busdata Write16(uint32 addr, uint32 data) override;
-	busdata Peek8(uint32 addr) override;
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata Peek1(uint32 addr) override;
 
 	// Nereid が1枚でもささっていれば true。
 	bool IsInstalled() const;
@@ -59,16 +57,14 @@ class NereidBoardDevice : public IODevic
 	using inherited = IODevice;
 
  public:
-	NereidBoardDevice(int n_);
+	explicit NereidBoardDevice(int n_);
 	~NereidBoardDevice() override;
 
 	bool Create() override;
 
-	busdata Read8(uint32 addr) override;
-	busdata Read16(uint32 addr) override;
-	busdata Write8(uint32 addr, uint32 data) override;
-	busdata Write16(uint32 addr, uint32 data) override;
-	busdata Peek8(uint32 addr) override;
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata Peek1(uint32 addr) override;
 
 	// ネットワークが有効なら true を返す
 	bool IsNetEnable() const { return (bool)net; }