Comment out the unused 'Pause' instruction result

src/core.rs

@@ -17,7 +17,7 @@ pub(crate) type Exception = ();
 pub(crate) enum InstructionResult {
     Normal,
     Exception(Exception),
-    Pause,
+    // Pause,
 }
 
 pub struct Core {
@@ -72,11 +72,10 @@ impl Core {
                         eprintln!("Exception from instruction");
                         eprintln!("PC: {:016x}, instr: {:08x}", self.pc, instr.0);
                         break;
-                    }
-                    InstructionResult::Pause => {
-                        eprintln!("Instruction asked for pause");
-                        break;
-                    }
+                    } // InstructionResult::Pause => {
+                      //     eprintln!("Instruction asked for pause");
+                      //     break;
+                      // }
                 }
             } else {
                 eprintln!("Invalid Instruction {:08x} at PC: {:x}", instr.0, self.pc);