diff --git a/src/emucore/Cart.hxx b/src/emucore/Cart.hxx
index 6c704ae48..c659e3548 100644
--- a/src/emucore/Cart.hxx
+++ b/src/emucore/Cart.hxx
@@ -254,6 +254,13 @@ class Cartridge : public Device
     */
     virtual uInt16 ramBankCount() const { return 0; }
 
+    /**
+      Query wether the current PC allows code execution.
+
+      @return  true, if code execution is allowed
+    */
+    virtual bool canExecute(uInt16 PC) const { return true; }
+
     /**
       Get the number of segments supported by the cartridge.
     */
diff --git a/src/emucore/CartEnhanced.hxx b/src/emucore/CartEnhanced.hxx
index 39b312cae..928303e50 100644
--- a/src/emucore/CartEnhanced.hxx
+++ b/src/emucore/CartEnhanced.hxx
@@ -99,6 +99,22 @@ class CartridgeEnhanced : public Cartridge
     */
     uInt16 ramBankCount() const override;
 
+    /**
+      Query wether the current PC allows code execution.
+
+      @return  true, if code execution is allowed
+    */
+    bool canExecute(uInt16 PC) const override {
+      return !(PC & 0x1000) || (PC & ROM_MASK) >= myRomOffset || executableCartRam();
+    }
+
+    /**
+      Query wether the cart RAM allows code execution.
+
+      @return  true, if code execution is allowed
+    */
+    virtual bool executableCartRam() const { return true; }
+
     /**
       Get the number of segments supported by the cartridge.
     */
diff --git a/src/emucore/CartF4SC.hxx b/src/emucore/CartF4SC.hxx
index cbc8f2461..66e9d08ba 100644
--- a/src/emucore/CartF4SC.hxx
+++ b/src/emucore/CartF4SC.hxx
@@ -49,6 +49,13 @@ class CartridgeF4SC : public CartridgeF4
     ~CartridgeF4SC() override = default;
 
   public:
+    /**
+      Query wether the cart RAM allows code execution.
+
+      @return  true, if code execution is allowed
+    */
+    bool executableCartRam() const override { return false; }
+
     /**
       Get a descriptor for the device name (used in error checking).
 
diff --git a/src/emucore/CartF6SC.hxx b/src/emucore/CartF6SC.hxx
index 0dc6be2ae..746e6a8c2 100644
--- a/src/emucore/CartF6SC.hxx
+++ b/src/emucore/CartF6SC.hxx
@@ -49,6 +49,13 @@ class CartridgeF6SC : public CartridgeF6
     ~CartridgeF6SC() override = default;
 
   public:
+    /**
+      Query wether the cart RAM allows code execution.
+
+      @return  true, if code execution is allowed
+    */
+    bool executableCartRam() const override { return false; }
+
     /**
       Get a descriptor for the device name (used in error checking).
 
diff --git a/src/emucore/CartF8SC.hxx b/src/emucore/CartF8SC.hxx
index d1338e5ee..f145954e5 100644
--- a/src/emucore/CartF8SC.hxx
+++ b/src/emucore/CartF8SC.hxx
@@ -49,6 +49,13 @@ class CartridgeF8SC : public CartridgeF8
     ~CartridgeF8SC() override = default;
 
   public:
+    /**
+      Query wether the cart RAM allows code execution.
+
+      @return  true, if code execution is allowed
+    */
+    bool executableCartRam() const override { return false; }
+
     /**
       Get a descriptor for the device name (used in error checking).
 
diff --git a/src/emucore/M6502.cxx b/src/emucore/M6502.cxx
index 98fdf9b4a..ddc4be7f1 100644
--- a/src/emucore/M6502.cxx
+++ b/src/emucore/M6502.cxx
@@ -339,6 +339,10 @@ inline void M6502::_execute(uInt64 cycles, DispatchResult& result)
         icycles = 0;
     #ifdef DEBUGGER_SUPPORT
         const uInt16 oldPC = PC;
+
+        // Only check for code in RAM execution if we have debugger support
+        if(!mySystem->cart().canExecute(PC))
+          FatalEmulationError::raise("cannot run code from cart RAM");
     #endif
 
         // Fetch instruction at the program counter