--- nono/vm/nereid.h	2026/04/29 17:05:21	1.1
+++ nono/vm/nereid.h	2026/04/29 17:05:33	1.1.1.4
@@ -11,7 +11,6 @@
 #pragma once
 
 #include "device.h"
-#include "monitor.h"
 #include <array>
 
 class BankRAMDevice;
@@ -29,15 +28,16 @@ class NereidDevice : public IODevice
 
 	bool Create() override;
 
-	uint64 Read8(uint32 addr) override;
-	uint64 Read16(uint32 addr) override;
-	uint64 Write8(uint32 addr, uint32 data) override;
-	uint64 Write16(uint32 addr, uint32 data) override;
-	uint64 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;
 
+	// Board デバイス取得。
+	NereidBoardDevice *GetBoard(int id) const { return boards[id].get(); }
+
  private:
 	inline uint32 Decoder(uint32 addr) const;
 	DECLARE_MONITOR_CALLBACK(MonitorUpdate);
@@ -47,7 +47,7 @@ class NereidDevice : public IODevice
 
 	std::array<std::unique_ptr<NereidBoardDevice>, 2> boards {};
 
-	Monitor monitor { this };
+	Monitor *monitor {};
 };
 
 // Nereid ボード1枚分
@@ -56,16 +56,14 @@ class NereidBoardDevice : public IODevic
 	using inherited = IODevice;
 
  public:
-	NereidBoardDevice(int n_);
+	explicit NereidBoardDevice(int n_);
 	~NereidBoardDevice() override;
 
 	bool Create() override;
 
-	uint64 Read8(uint32 addr) override;
-	uint64 Read16(uint32 addr) override;
-	uint64 Write8(uint32 addr, uint32 data) override;
-	uint64 Write16(uint32 addr, uint32 data) override;
-	uint64 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; }