/// <summary>
/// Creates temporary variable.
/// </summary>
/// <param name="fmt">Format of variable.</param>
/// <returns>Variable that can be assigned.</returns>
public Operand CreateTemporary(PinFormat fmt, uint size)
{
int name = GenerateNextUniqueName();
compiler.RegisterTemp(name, fmt, size);
return(new Operand(fmt, name, size, true));
}