(PCL) A language which started out as an implementation of CommonLoops and turned into a portable CLOs implementation. Version 1992-08-28. It runs under {Lucid Common LIsP} 4.0.1 and {CMU Common LIsP} 16e. . (1992-09-02) [Was it developed by Richard Harriss@ptolemy2.rdrc.rpi.edu>?]