--- nono/vm/sprite.h	2026/04/29 17:04:45	1.1.1.4
+++ nono/vm/sprite.h	2026/04/29 17:05:29	1.1.1.10
@@ -4,16 +4,19 @@
 // Licensed under nono-license.txt
 //
 
+//
+// スプライトコントローラ
+//
+
 #pragma once
 
 #include "device.h"
 
-class SpriteDevice
-	: public IODevice
+class SpriteDevice : public IODevice
 {
 	using inherited = IODevice;
- private:
-	static const int baseaddr = 0xeb0000;
+
+	static const uint32 baseaddr = 0xeb0000;
 
 	struct sprite_scroll {
 		uint16 xpos;
@@ -39,15 +42,16 @@ class SpriteDevice
 
  public:
 	SpriteDevice();
-	virtual ~SpriteDevice() override;
+	~SpriteDevice() override;
 
-	uint64 Read8(uint32 addr) override;
-	uint64 Read16(uint32 addr) override;
-	uint64 Write8(uint32 addr, uint32 data) override;
-	uint64 Write16(uint32 addr, uint32 data) override;
-	uint64 Peek8(uint32 addr) override;
+	busdata Read(busaddr addr) override;
+	busdata Write(busaddr addr, uint32 data) override;
+	busdata Peek1(uint32 addr) override;
 
  private:
+	busdata Get16(uint32 addr) const;
+	busdata Set16(uint32 addr, uint32 data);
+
 	struct sprite_ctrl reg {};
 	std::unique_ptr<uint8[]> mem {};
 };