--- nono/vm/prom.h	2026/04/29 17:05:24	1.1.1.10
+++ nono/vm/prom.h	2026/04/29 17:05:28	1.1.1.11
@@ -22,13 +22,9 @@ class PROM0Device : 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;
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata Peek1(uint32 addr) override;
 
  private:
 	// アドレスデコーダ
@@ -49,7 +45,7 @@ class PROMDevice : public ROMDevice
 
 	bool Init() override;
 
-	int GetROMVer() const { return romver; }
+	uint GetROMVer() const { return romver; }
 
  private:
 	bool InitLuna1();
@@ -57,7 +53,7 @@ class PROMDevice : public ROMDevice
 
 	// PROM バージョン。
 	// 100倍した整数形式で持つ。0 ならバージョン不明。
-	int romver {};
+	uint romver {};
 };
 
 static inline PROM0Device *GetPROM0Device() {