--- nono/vm/newsctlr.h	2026/04/29 17:05:18	1.1.1.1
+++ nono/vm/newsctlr.h	2026/04/29 17:05:21	1.1.1.2
@@ -37,7 +37,7 @@ class NewsCtlrDevice : public IODevice
 	uint64 Write8(uint32 addr, uint32 data) override;
 	uint64 Peek8(uint32 addr) override;
 
-	int GetLED() const { return led; }
+	uint GetLED() const { return led; }
 
  private:
 	uint8 GetIDROM(uint32 addr) const;
@@ -53,7 +53,7 @@ class NewsCtlrDevice : public IODevice
 	// 256 x 4bit ROM (ここではデータをバイト単位で保持する)
 	std::array<uint8, 128> oidrom {};
 
-	int led {};
+	uint led {};
 	// タイマー
 	bool timer_intr {};
 	bool timer_enable {};