  We describe the C program mori.x. It is part of PALP, a package for analyzing
lattice polytopes. Its main purpose is the construction and analysis of
three--dimensional smooth Calabi--Yau hypersurfaces in toric varieties. The
ambient toric varieties are given in terms of fans over the facets of reflexive
lattice polytopes. The program performs crepant star triangulations of
reflexive polytopes and determines the Mori cones of the resulting toric
varieties. Furthermore, it computes the intersection rings and characteristic
classes of hypersurfaces.
