private static void addCertainPaths(final InstructionStream is_in,
final InstructionStream is_out, FEPathList fepathlist,
final boolean dir)
{
fepathlist.executeOnEachPath(new ExecutorOnFEPath()
{
public void execute(FEPath p, Object o)
{
For.get(o);
if (p.isClockwise() == dir)