--- nono/vm/kbc.h	2026/04/29 17:05:17	1.1
+++ nono/vm/kbc.h	2026/04/29 17:05:28	1.1.1.3
@@ -30,7 +30,12 @@ class KBCDevice : public IODevice
 	KBCDevice();
 	~KBCDevice() override;
 
-	uint64 Read8(uint32 addr) override;
-	uint64 Write8(uint32 addr, uint32 data) override;
-	uint64 Peek8(uint32 addr) override;
+ protected:
+	// BusIO インタフェース
+	// 何も分からないのでとりあえず適当に折り返しておく
+	static const uint32 NPORT = 8;
+	busdata ReadPort(uint32 offset);
+	busdata WritePort(uint32 offset, uint32 data);
+	busdata PeekPort(uint32 offset);
+	bool PokePort(uint32 offset, uint32 data);
 };