diff --git a/desmume/src/addons/none.cpp b/desmume/src/addons/none.cpp
index 1fbad5e5a..a1cee0f2d 100644
--- a/desmume/src/addons/none.cpp
+++ b/desmume/src/addons/none.cpp
@@ -1,5 +1,4 @@
-/*  Copyright (C) 2009 CrazyMax
-	Copyright (C) 2009 DeSmuME team
+/*  Copyright (C) 2009-2010 DeSmuME team
 
     This file is part of DeSmuME
 
@@ -18,8 +17,9 @@
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 */
 
-#include "../addons.h"
 #include <string.h>
+#include "../addons.h"
+#include "../NDSSystem.h"
 
 static BOOL None_init(void) { return (TRUE); }
 static void None_reset(void) {}
@@ -28,9 +28,40 @@ static void None_config(void) {}
 static void None_write08(u32 adr, u8 val) {}
 static void None_write16(u32 adr, u16 val) {}
 static void None_write32(u32 adr, u32 val) {}
-static u8   None_read08(u32 adr){ return (0xFF); }
-static u16  None_read16(u32 adr){ return (0xFFFF); }
-static u32  None_read32(u32 adr){ return (0xFFFFFFFF); }
+static u8   None_read08(u32 adr)
+{
+	if (adr > 0x09FFFFFF) 
+	{
+		if ((adr & 0x0000FFFF) > MMU_new.backupDevice.data.size()) return 0xFF;
+		return MMU_new.backupDevice.data[adr & 0x0000FFFF];
+	}
+	if ((adr - 0x08000000) > gameInfo.romsize) return 0xFF;
+	
+	return T1ReadByte((u8*)gameInfo.romdata, adr - 0x08000000);
+}
+static u16  None_read16(u32 adr)
+{
+	if (adr > 0x09FFFFFF) 
+	{
+		if ((adr & 0x0000FFFF) > MMU_new.backupDevice.data.size()) return 0xFFFF;
+		return (u16)MMU_new.backupDevice.data[adr & 0x0000FFFF];
+	}
+	if ((adr - 0x08000000) > gameInfo.romsize) return 0xFFFF;
+	
+	return T1ReadWord((u8*)gameInfo.romdata, adr - 0x08000000);
+}
+static u32  None_read32(u32 adr)
+{
+	if (adr > 0x09FFFFFF) 
+	{
+		if ((adr & 0x0000FFFF) > MMU_new.backupDevice.data.size()) return 0xFFFFFFFF;
+		return (u32)MMU_new.backupDevice.data[adr & 0x0000FFFF];
+	}
+
+	if ((adr - 0x08000000) > gameInfo.romsize) return 0xFFFFFFFF;
+	
+	return T1ReadLong((u8*)gameInfo.romdata, adr - 0x08000000);
+}
 static void None_info(char *info) { strcpy(info, "Nothing in GBA slot"); }
 
 ADDONINTERFACE addonNone = {
diff --git a/desmume/src/mc.h b/desmume/src/mc.h
index 8875558cd..8420f81e2 100644
--- a/desmume/src/mc.h
+++ b/desmume/src/mc.h
@@ -90,6 +90,7 @@ public:
 	//commands from mmu
 	void reset_command();
 	u8 data_command(u8,int);
+	std::vector<u8> data;
 
 	//this info was saved before the last reset (used for savestate compatibility)
 	struct SavedInfo
@@ -129,7 +130,7 @@ private:
 	u32 addr_size, addr_counter;
 	u32 addr;
 
-	std::vector<u8> data;
+	
 	std::vector<u8> data_autodetect;
 	enum STATE {
 		DETECTING = 0, RUNNING = 1