--- nono/vm/areaset.cpp	2026/04/29 17:05:10	1.1.1.6
+++ nono/vm/areaset.cpp	2026/04/29 17:05:29	1.1.1.10
@@ -10,76 +10,70 @@
 
 #include "areaset.h"
 #include "mpu.h"
-
-// グローバル参照用
-AreaSetDevice *gAreaSet;
+#include "x68kio.h"
 
 // コンストラクタ
 AreaSetDevice::AreaSetDevice()
-	: inherited("AreaSet")
+	: inherited(OBJ_AREASET)
 {
-	devaddr = baseaddr;
-	devlen  = 0x2000;
 }
 
 // デストラクタ
 AreaSetDevice::~AreaSetDevice()
 {
-	gAreaSet = NULL;
+}
+
+// 初期化
+bool
+AreaSetDevice::Init()
+{
+	if (inherited::Init() == false) {
+		return false;
+	}
+
+	x68kio = GetX68kIODevice();
+
+	return true;
 }
 
 // リセット
 void
 AreaSetDevice::ResetHard(bool poweron)
 {
-	limit = 0;
+	// リセットでどうなるかは分からないけど、
+	// さすがに不定ではないだろう。
+	x68kio->SetAreaset(0);
 }
 
-uint64
-AreaSetDevice::Read8(uint32 addr)
+busdata
+AreaSetDevice::ReadPort(uint32 offset)
 {
-	switch (addr) {
-	 case 0xe86001:
-		return limit;
-	}
-	return (uint64)-1;
+	putlog(2, "Read $%06x (BusErr)", mpu->GetPaddr());
+	return BusData::BusErr;
 }
 
-uint64
-AreaSetDevice::Read16(uint32 addr)
-{
-	return 0xff00 | Read8(addr + 1);
-}
 
-uint64
-AreaSetDevice::Write8(uint32 addr, uint32 data)
+busdata
+AreaSetDevice::WritePort(uint32 offset, uint32 data)
 {
-	gMPU->AddCycle(7);	// InsideOut p.135
+	putlog(1, "Write $%06x <- $%02x", mpu->GetPaddr(), data);
+	x68kio->SetAreaset(data);
 
-	switch (addr) {
-	 case 0xe86001:
-		putlog(0, "未実装エリアセット書き込み $%02x", data);
-		limit = data;
-		return 0;
-	 default:
-		break;
-	}
-	return (uint64)-1;
+	const busdata wait = busdata::Wait(7 * 40_nsec);
+	busdata r = wait;
+	r |= BusData::Size1;
+	return r;
 }
 
-uint64
-AreaSetDevice::Write16(uint32 addr, uint32 data)
+busdata
+AreaSetDevice::PeekPort(uint32 offset)
 {
-	return Write8(addr + 1, data);
+	return BusData::BusErr;
 }
 
-uint64
-AreaSetDevice::Peek8(uint32 addr)
+bool
+AreaSetDevice::PokePort(uint32 offset, uint32 data)
 {
-	switch (addr) {
-	 case 0xe86001:
-		return limit;
-	 default:
-		return 0xff;
-	}
+	// とりあえず
+	return false;
 }