The computer code MARLOWE was used to evaluate energy vs. range curves in the binary collision approximation. The program was extended to the high-energy regime taking into account the stripping of electrons from the projectile and the concomitant changes in the interaction potentials especially for the inelastic part of the collisions. A complementary computer code LATTIC was developed for the parameterization of the lattice description. This code enables the application of MARLOWE to target materials with complicated crystallographic structure, such as, e.g. ThF4, KClO4and NH4Cl.