--- nono/vm/mainram.h	2026/04/29 17:05:25	1.1.1.2
+++ nono/vm/mainram.h	2026/04/29 17:05:29	1.1.1.3
@@ -23,14 +23,16 @@ class MainRAMDevice : public IODevice
 	bool Init() override;
 	void ResetHard(bool poweron) override;
 
-	busdata Read8(uint32 addr) override;
-	busdata Read16(uint32 addr) override;
-	busdata Read32(uint32 addr) override;
-	busdata Write8(uint32 addr, uint32 data) override;
-	busdata Write16(uint32 addr, uint32 data) override;
-	busdata Write32(uint32 addr, uint32 data) override;
-	busdata Peek8(uint32 addr) override;
-	bool Poke8(uint32 addr, uint32 data) override;
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata ReadBurst16(busaddr addr, uint32 *dst) override;
+	busdata WriteBurst16(busaddr addr, const uint32 *dst) override;
+	busdata Peek1(uint32 addr) override;
+	bool Poke1(uint32 addr, uint32 data) override;
+
+	// 領域アクセス
+	bool ReadMem(uint32 addr, void *dst, uint32 len);
+	bool WriteMem(uint32 addr, const void *src, uint32 len);
 
 	// RAM 容量(バイト単位)を取得
 	int GetSize() const	{ return ram_size; }
@@ -38,7 +40,7 @@ class MainRAMDevice : public IODevice
 	int GetSizeMB() const { return (uint)ram_size / 1024 / 1024; }
 
 	// アクセスウェイト [clock] を設定
-	void SetWait(uint32 wait);
+	void SetWait(uint32 wait_clock);
 
 	// info で指定された実行ファイルをロードする
 	bool LoadExec(LoadInfo *);
@@ -53,8 +55,8 @@ class MainRAMDevice : public IODevice
 	int ram_size {};
 
 	// アクセスウェイト
-	busdata read_wait {};
-	busdata write_wait {};
+	busdata normal_wait {};
+	busdata burst_wait {};
 };
 
 static inline MainRAMDevice *GetMainRAMDevice() {