protected internal virtual String variableNameForRegister(int regNbr)
        {
            int at = (registerRecord_Renamed_Field == null)?-1:registerRecord_Renamed_Field.indexOf(regNbr);

            if (at > -1)
            {
                return(registerRecord_Renamed_Field.variableNames[at]);
            }
            else
            {
                return(null);
            }
        }