--- nono/vm/gvram.cpp	2026/04/29 17:04:28	1.1
+++ nono/vm/gvram.cpp	2026/04/29 17:04:35	1.1.1.3
@@ -1,10 +1,11 @@
 //
 // nono
-// Copyright (C) 2018 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #include "gvram.h"
-#include "vicon.h"
+#include "videoctlr.h"
 
 //
 // GVRAM
@@ -13,7 +14,7 @@
 // バイトアクセス時は HB() マクロを使用のこと。
 //
 
-GVRAMDevice *gGVRAM;
+std::unique_ptr<GVRAMDevice> gGVRAM;
 
 GVRAMDevice::GVRAMDevice()
 {
@@ -22,12 +23,11 @@ GVRAMDevice::GVRAMDevice()
 	devaddr = 0xc00000;
 	devlen  = 0x200000;	// XXX とりあえず
 
-	mem = new uint8[devlen];
+	mem.reset(new uint8[devlen]);
 }
 
 GVRAMDevice::~GVRAMDevice()
 {
-	delete[] mem;
 }
 
 uint64