--- nono/vm/pio.cpp	2026/04/29 17:04:50	1.1.1.6
+++ nono/vm/pio.cpp	2026/04/29 17:04:52	1.1.1.7
@@ -256,6 +256,8 @@ PIO0Device::Init()
 	return true;
 }
 
+// XXX PowerOn か ResetHard 未調査
+
 uint64
 PIO0Device::Read(uint32 offset)
 {