/// <summary>
        /// Creates a fixed value.
        /// </summary>
        /// <param name="fmt">The format of pin.</param>
        /// <param name="val">The pin value, as object.</param>
        /// <returns>Constant operand.</returns>
        public Operand CreateFixed(PinFormat fmt, uint size, object val)
        {
            int name = GenerateNextUniqueName();

            compiler.RegisterFixed(name, fmt, size, val);
            return(new Operand(fmt, name, size, val));
        }