CodeGeneration.CGenState.NOT C# (CSharp) Метод

        public void NOT(Reg dst) => NOT(RegToString(dst));

 public override Reg CGenValue(CGenState state) {
     Reg ret = this.Expr.CGenValue(state);
     if (ret != Reg.EAX) {
         throw new InvalidProgramException();
     }
     state.NOT(Reg.EAX);
     return Reg.EAX;
 }