Interface: Added Jit::Reset to reset CPU state

src/backend_x64/interface_x64.cpp

@@ -123,6 +123,11 @@ void Jit::ClearCache(bool poison_memory) {
     impl->emitter.ClearCache();
 }
 
+void Jit::Reset() {
+    ASSERT(!is_executing);
+    impl->jit_state = {};
+}
+
 void Jit::HaltExecution() {
     ASSERT(is_executing);
     halt_requested = true;

src/interface/interface.h

@@ -57,6 +57,12 @@ public:
      */
     void ClearCache(bool poison_memory = true);
 
+    /**
+     * Reset CPU state to state at startup. Does not clear code cache.
+     * Cannot be called from a callback.
+     */
+    void Reset();
+
     /**
      * Stops execution in Jit::Run.
      * Can only be called from a callback.