diff --git a/desmume/src/gtk-glade/dTools/callbacks_2_memview.c b/desmume/src/gtk-glade/dTools/callbacks_2_memview.c
index b98c6c419..0c82662bc 100755
--- a/desmume/src/gtk-glade/dTools/callbacks_2_memview.c
+++ b/desmume/src/gtk-glade/dTools/callbacks_2_memview.c
@@ -32,7 +32,7 @@ enum SHOW {
 
 static BOOL init=FALSE;
 static enum SHOW packmode=Bit8;
-static u32 address=0, tmpaddr=0, bpl=0;
+static u32 address=0, tmpaddr=0, bpl=0; int cpu=0;
 static PangoAttrList *attr_Address, *attr_Pattern1, *attr_Pattern2, *attr_Text;
 
 static GtkEntry       *wAddress;
@@ -40,6 +40,13 @@ static GtkDrawingArea *wPaint;
 void refresh();
 
 
+void on_wtools_2_cpu_changed           (GtkComboBox *widget, gpointer user_data) {
+	/* c == 0 means ARM9 */
+	cpu=gtk_combo_box_get_active(widget);
+	refresh();
+}
+
+
 /* how to pack bytes */
 
 void on_wtools_2_r8_toggled            (GtkToggleButton *togglebutton, gpointer user_data) { packmode=Bit8; refresh(); }
@@ -61,9 +68,13 @@ void on_wtools_2_GotoButton_clicked    (GtkButton *button, gpointer user_data) {
 }
 
 
+
+
 void on_wtools_2_MemView_show          (GtkWidget *widget, gpointer user_data) {
+	GtkWidget * combo = glade_xml_get_widget(xml_tools, "wtools_2_cpu");
 	wAddress = (GtkEntry*)glade_xml_get_widget(xml_tools, "wtools_2_GotoAddress");
 	wPaint   = (GtkDrawingArea*)glade_xml_get_widget(xml_tools, "wtools_2_draw");
+	gtk_combo_box_set_active((GtkComboBox*)combo, 0);
 	refresh();
 }
 
@@ -89,7 +100,7 @@ void refresh() {
 	GtkWidget * area = (GtkWidget*)wPaint;
 	PangoLayout* playout = gtk_widget_create_pango_layout(area, NULL);
 	GdkGC * GC = area->style->fg_gc[area->state];
-	int i,j,addr, w,h,x,y, cpu=0; u8 c;
+	int i,j,addr, w,h,x,y; u8 c;
 	char txt[80],*ptxt;
 	char words[4][13];
 
diff --git a/desmume/src/gtk-glade/dTools/callbacks_dtools.h b/desmume/src/gtk-glade/dTools/callbacks_dtools.h
index 6961e650b..1fc9ea588 100755
--- a/desmume/src/gtk-glade/dTools/callbacks_dtools.h
+++ b/desmume/src/gtk-glade/dTools/callbacks_dtools.h
@@ -46,6 +46,7 @@ void on_wtools_1_r_dispb_winout_toggled(GtkToggleButton *togglebutton, gpointer
 
 /* ***** ***** MEMORY VIEWER ***** ***** */
 
+void on_wtools_2_cpu_changed           (GtkComboBox *widget, gpointer user_data);
 void on_wtools_2_MemView_show          (GtkWidget *widget, gpointer user_data);
 void on_wtools_2_r8_toggled            (GtkToggleButton *togglebutton, gpointer user_data);
 void on_wtools_2_r16_toggled           (GtkToggleButton *togglebutton, gpointer user_data);
diff --git a/desmume/src/gtk-glade/glade/DeSmuMe_Dtools.glade b/desmume/src/gtk-glade/glade/DeSmuMe_Dtools.glade
index d705d83cf..dba8e9de3 100755
--- a/desmume/src/gtk-glade/glade/DeSmuMe_Dtools.glade
+++ b/desmume/src/gtk-glade/glade/DeSmuMe_Dtools.glade
@@ -640,7 +640,7 @@ cpu : ARM9</property>
 	<widget class="GtkTable" id="table2">
 	  <property name="visible">True</property>
 	  <property name="n_rows">2</property>
-	  <property name="n_columns">6</property>
+	  <property name="n_columns">7</property>
 	  <property name="homogeneous">False</property>
 	  <property name="row_spacing">0</property>
 	  <property name="column_spacing">0</property>
@@ -813,12 +813,31 @@ cpu : ARM9</property>
 	    </widget>
 	    <packing>
 	      <property name="left_attach">0</property>
-	      <property name="right_attach">6</property>
+	      <property name="right_attach">7</property>
 	      <property name="top_attach">1</property>
 	      <property name="bottom_attach">2</property>
 	      <property name="x_options">fill</property>
 	    </packing>
 	  </child>
+
+	  <child>
+	    <widget class="GtkComboBox" id="wtools_2_cpu">
+	      <property name="visible">True</property>
+	      <property name="items" translatable="yes">ARM9 cpu
+ARM7 cpu</property>
+	      <property name="add_tearoffs">False</property>
+	      <property name="focus_on_click">True</property>
+	      <signal name="changed" handler="on_wtools_2_cpu_changed" last_modification_time="Fri, 12 Jan 2007 18:36:24 GMT"/>
+	    </widget>
+	    <packing>
+	      <property name="left_attach">6</property>
+	      <property name="right_attach">7</property>
+	      <property name="top_attach">0</property>
+	      <property name="bottom_attach">1</property>
+	      <property name="x_options">fill</property>
+	      <property name="y_options">fill</property>
+	    </packing>
+	  </child>
 	</widget>
 	<packing>
 	  <property name="padding">0</property>