Option names can be abbreviated to the shortest unique string. The input file is a file in CM format containing the initial configuration. The potential is a file defining the EMT potential, same format as for ARTwork. The parameter file specifies the simulation. The format is not the same as ARTwork's.
N reads frame number N from the input file.
The first frame is numbered 0, the next 1 etc. In such a case you should count the number of intact frames, and use the -frame option. The file contains commands, one on each line. Syntax checking is still incomplete, incorrect input may silently give unexpected results. Newton's second law is solved for the atoms using the velocity-Verlet algorithm.