--- nono/vm/areaset.cpp	2026/04/29 17:05:25	1.1.1.9
+++ nono/vm/areaset.cpp	2026/04/29 17:05:50	1.1.1.12
@@ -8,9 +8,8 @@
 // エリアセット
 //
 
-// 書き込み専用デバイスなので BusIO を使うのも余計手間な気がする。
-
 #include "areaset.h"
+#include "event.h"
 #include "mpu.h"
 #include "x68kio.h"
 
@@ -29,10 +28,6 @@ AreaSetDevice::~AreaSetDevice()
 bool
 AreaSetDevice::Init()
 {
-	if (inherited::Init() == false) {
-		return false;
-	}
-
 	x68kio = GetX68kIODevice();
 
 	return true;
@@ -48,50 +43,34 @@ AreaSetDevice::ResetHard(bool poweron)
 }
 
 busdata
-AreaSetDevice::Read8(uint32 addr)
+AreaSetDevice::ReadPort(uint32 offset)
 {
-	// 書き込み専用なので読み出しはすべてバスエラー。
-	putlog(2, "Read $%06x.B (BusErr)", addr);
-	return busdata::BusErr;
+	putlog(2, "Read $%06x (BusErr)", mpu->GetPaddr());
+	return BusData::BusErr;
 }
 
-busdata
-AreaSetDevice::Read16(uint32 addr)
-{
-	// 書き込み専用なので読み出しはすべてバスエラー。
-	putlog(2, "Read $%06x.W (BusErr)", addr);
-	return busdata::BusErr;
-}
 
 busdata
-AreaSetDevice::Write8(uint32 addr, uint32 data)
+AreaSetDevice::WritePort(uint32 offset, uint32 data)
 {
-	busdata r;
-
-	// 2バイトおきのようだ。
-	uint32 offset = addr & 1;
-	if (offset == 0) {
-		putlog(2, "Write $%06x.B (BusErr)", addr);
-		r.SetBusErr();
-	} else {
-		putlog(1, "Write $%06x <- $%02x", addr, data);
-		x68kio->SetAreaset(data & 0xff);
-	}
+	putlog(1, "Write $%06x <- $%02x", mpu->GetPaddr(), data);
+	x68kio->SetAreaset(data);
 
 	const busdata wait = busdata::Wait(7 * 40_nsec);
-	r |= wait;
+	busdata r = wait;
+	r |= BusData::Size1;
 	return r;
 }
 
 busdata
-AreaSetDevice::Write16(uint32 addr, uint32 data)
+AreaSetDevice::PeekPort(uint32 offset)
 {
-	// ワード書き込みは可能
-	return Write8(addr + 1, data & 0xff);
+	return BusData::BusErr;
 }
 
-busdata
-AreaSetDevice::Peek8(uint32 addr)
+bool
+AreaSetDevice::PokePort(uint32 offset, uint32 data)
 {
-	return busdata::BusErr;
+	// とりあえず
+	return false;
 }