With my correct implementation of HALT, I need the fetch to take place during a halted state

LR35902/LR35902.cs

@@ -226,7 +226,8 @@ namespace LR35902
             }
             else if (this.HALT.Lowered())
             {
-                //this.Execute(0);  // NOP
+                _ = this.FetchByte();
+                this.Execute(0);  // NOP
             }
             else
             {