--- nono/vm/sprite.cpp	2026/04/29 17:04:50	1.1.1.5
+++ nono/vm/sprite.cpp	2026/04/29 17:04:53	1.1.1.6
@@ -24,6 +24,8 @@ SpriteDevice::~SpriteDevice()
 {
 }
 
+// XXX PowerOn() か ResetHard() 未調査
+
 uint64
 SpriteDevice::Read8(uint32 addr)
 {