The file "ecdl" is binary executable for PA-8x00 chips running HP-UX 11, compiled by Jerry Whelan. It is quite big at 254 K but there is a compressed 130 K version in "ecdl.gz". It runs at about 362 k iterations per second on a 440 MHz PA-8500. Download, gunzip if necessary, do "chmod u+x ecdl" and run with arguments like this: ecdl { } : Either test, mail, alt or batch. : Something to identify you by e.g., your email address. : Name of the team you are on e.g., one you just made up! : The machine name. : The machine hardware type e.g, '440 MHz PA-8500'. : The OS name e.g., 'HP-UX 11'. : Optional extra text. Please see sections 3 and 4 of the readMe in source/64-bit/ for more detailed info. Rob.