--- nono/vm/scc.h	2026/04/29 17:04:28	1.1.1.1
+++ nono/vm/scc.h	2026/04/29 17:04:32	1.1.1.2
@@ -32,4 +32,10 @@ class SCCDevice
 	virtual void WriteCtrl(struct SIO::channel *chan, uint32 data);
 
 	virtual void Interrupt();
+
+ private:
+	// アドレスデコーダ
+	uint64 Decoder(uint32 addr) const;
 };
+
+extern std::unique_ptr<SCCDevice> gSCC;