--- nono/vm/sio.cpp	2026/04/29 17:04:45	1.1.1.5
+++ nono/vm/sio.cpp	2026/04/29 17:04:50	1.1.1.6
@@ -33,20 +33,12 @@ SIODevice::~SIODevice()
 {
 }
 
-// 本体リセットスイッチによるリセット
-void
-SIODevice::ResetHard()
-{
-	// チップリセット
-	Reset();
-}
-
 uint64
-SIODevice::Read(uint32 addr)
+SIODevice::Read(uint32 offset)
 {
 	uint32 data;
 
-	switch (addr) {
+	switch (offset) {
 	 case 0:
 		data = ReadData(&cr.chan[0]);
 		break;
@@ -66,9 +58,9 @@ SIODevice::Read(uint32 addr)
 }
 
 uint64
-SIODevice::Write(uint32 addr, uint32 data)
+SIODevice::Write(uint32 offset, uint32 data)
 {
-	switch (addr) {
+	switch (offset) {
 	 case 0:
 		WriteData(&cr.chan[0], data);
 		return 0;
@@ -89,9 +81,9 @@ SIODevice::Write(uint32 addr, uint32 dat
 }
 
 uint64
-SIODevice::Peek(uint32 addr)
+SIODevice::Peek(uint32 offset)
 {
-	switch (addr) {
+	switch (offset) {
 	 case 0:
 		return PeekData(&cr.chan[0]);