diff --git a/src/state.rs b/src/state.rs
index deb994d..e7376eb 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -99,16 +99,19 @@ impl EmuState {
                     self.update_fp();
                 } else {
                     self.audio_tx.send(AudioMessage::FanOff).unwrap();
-                    self.running = false;
-                    self.fp_state.set_status(Status::empty());
-                    self.fp_state.set_addr(0);
-                    self.fp_state.set_data(0);
+                    self.update_fp();
                 }
             }
         }
     }
 
     pub fn update_fp(&mut self) {
+        if !self.fp_state.power() {
+            self.fp_state.set_addr(0);
+            self.fp_state.set_data(0);
+            self.fp_state.set_status(Status::empty());
+            return;
+        }
         let cycle = self.cpu.get_mem_cycle();
         self.fp_state.set_status(cycle.get_status());
         match cycle {