diff --git a/src/debugger/gui/Cart2KWidget.cxx b/src/debugger/gui/Cart2KWidget.cxx
new file mode 100644
index 000000000..9b70fb85e
--- /dev/null
+++ b/src/debugger/gui/Cart2KWidget.cxx
@@ -0,0 +1,31 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll       
+//  SS  SS   tt           ll   ll        
+//  SS     tttttt  eeee   ll   ll   aaaa 
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//
+// $Id$
+//============================================================================
+
+#include "Cart2K.hxx"
+#include "Cart2KWidget.hxx"
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Cartridge2KWidget::Cartridge2KWidget(
+      GuiObject* boss, const GUI::Font& font,
+      int x, int y, int w, int h, Cartridge2K& cart)
+  : CartDebugWidget(boss, font, x, y, w, h)
+{
+  addBaseInformation(2048, "Atari", "Standard 2K cartridge, non-bankswitched\n"
+                     "Accessible @ $1000 - $1FFF");
+}
diff --git a/src/debugger/gui/Cart2KWidget.hxx b/src/debugger/gui/Cart2KWidget.hxx
new file mode 100644
index 000000000..a4ded625d
--- /dev/null
+++ b/src/debugger/gui/Cart2KWidget.hxx
@@ -0,0 +1,39 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll       
+//  SS  SS   tt           ll   ll        
+//  SS     tttttt  eeee   ll   ll   aaaa 
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//
+// $Id$
+//============================================================================
+
+#ifndef CARTRIDGE2K_WIDGET_HXX
+#define CARTRIDGE2K_WIDGET_HXX
+
+class Cartridge2K;
+#include "CartDebugWidget.hxx"
+
+class Cartridge2KWidget : public CartDebugWidget
+{
+  public:
+    Cartridge2KWidget(GuiObject* boss, const GUI::Font& font,
+                      int x, int y, int w, int h,
+                      Cartridge2K& cart);
+    virtual ~Cartridge2KWidget() { }
+
+    // No implementation for non-bankswitched ROMs
+    void loadConfig() { }
+    void handleCommand(CommandSender* sender, int cmd, int data, int id) { }
+};
+
+#endif
diff --git a/src/debugger/gui/Cart4KWidget.cxx b/src/debugger/gui/Cart4KWidget.cxx
new file mode 100644
index 000000000..149b95ca9
--- /dev/null
+++ b/src/debugger/gui/Cart4KWidget.cxx
@@ -0,0 +1,32 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll       
+//  SS  SS   tt           ll   ll        
+//  SS     tttttt  eeee   ll   ll   aaaa 
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//
+// $Id$
+//============================================================================
+
+#include "Cart4K.hxx"
+#include "Cart4KWidget.hxx"
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Cartridge4KWidget::Cartridge4KWidget(
+      GuiObject* boss, const GUI::Font& font,
+      int x, int y, int w, int h, Cartridge4K& cart)
+  : CartDebugWidget(boss, font, x, y, w, h)
+{
+  uInt16 offset = (cart.myImage[0xFFD] << 8) | cart.myImage[0xFFC];
+  addBaseInformation(4096, "Atari", "Standard 4K cartridge, non-bankswitched\n"
+                     "Accessible @ $1000 - $1FFF");
+}
diff --git a/src/debugger/gui/Cart4KWidget.hxx b/src/debugger/gui/Cart4KWidget.hxx
index 9ccaa3dc1..d07e25a5b 100644
--- a/src/debugger/gui/Cart4KWidget.hxx
+++ b/src/debugger/gui/Cart4KWidget.hxx
@@ -21,7 +21,6 @@
 #define CARTRIDGE4K_WIDGET_HXX
 
 class Cartridge4K;
-
 #include "CartDebugWidget.hxx"
 
 class Cartridge4KWidget : public CartDebugWidget
@@ -29,13 +28,7 @@ class Cartridge4KWidget : public CartDebugWidget
   public:
     Cartridge4KWidget(GuiObject* boss, const GUI::Font& font,
                       int x, int y, int w, int h,
-                      Cartridge4K& cart)
-      : CartDebugWidget(boss, font, x, y, w, h)
-    {
-      addBaseInformation(4096, "Atari", "Standard 4K cartridge, non-bankswitched\n"
-        "Accessible @ $1000 - $1FFF");
-    }
-
+                      Cartridge4K& cart);
     virtual ~Cartridge4KWidget() { }
 
     // No implementation for non-bankswitched ROMs
diff --git a/src/debugger/gui/module.mk b/src/debugger/gui/module.mk
index d6a1d1741..080970947 100644
--- a/src/debugger/gui/module.mk
+++ b/src/debugger/gui/module.mk
@@ -19,6 +19,8 @@ MODULE_OBJS := \
 	src/debugger/gui/ToggleBitWidget.o \
 	src/debugger/gui/TogglePixelWidget.o \
 	src/debugger/gui/ToggleWidget.o \
+	src/debugger/gui/Cart2KWidget.o \
+	src/debugger/gui/Cart4KWidget.o \
 	src/debugger/gui/JoystickWidget.o \
 	src/debugger/gui/PaddleWidget.o \
 	src/debugger/gui/BoosterWidget.o \
diff --git a/src/emucore/Cart2K.hxx b/src/emucore/Cart2K.hxx
index 0b5c47dcf..9392972a9 100644
--- a/src/emucore/Cart2K.hxx
+++ b/src/emucore/Cart2K.hxx
@@ -24,6 +24,9 @@ class System;
 
 #include "bspf.hxx"
 #include "Cart.hxx"
+#ifdef DEBUGGER_SUPPORT
+  #include "Cart2KWidget.hxx"
+#endif
 
 /**
   This is the standard Atari 2K cartridge.  These cartridges 
@@ -35,6 +38,8 @@ class System;
 */
 class Cartridge2K : public Cartridge
 {
+  friend class Cart2KWidget;
+
   public:
     /**
       Create a new cartridge using the specified image
@@ -121,6 +126,18 @@ class Cartridge2K : public Cartridge
     */
     string name() const { return "Cartridge2K"; }
 
+  #ifdef DEBUGGER_SUPPORT
+    /**
+      Get debugger widget responsible for accessing the inner workings
+      of the cart.
+    */
+    CartDebugWidget* debugWidget(GuiObject* boss,
+        const GUI::Font& font, int x, int y, int w, int h)
+    {
+      return new Cartridge2KWidget(boss, font, x, y, w, h, *this);
+    }
+  #endif
+
   public:
     /**
       Get the byte at the specified address
diff --git a/src/emucore/Cart4K.hxx b/src/emucore/Cart4K.hxx
index bc5041b1e..eabb3ad0c 100644
--- a/src/emucore/Cart4K.hxx
+++ b/src/emucore/Cart4K.hxx
@@ -37,6 +37,8 @@ class System;
 */
 class Cartridge4K : public Cartridge
 {
+  friend class Cartridge4KWidget;
+
   public:
     /**
       Create a new cartridge using the specified image