CMP20 is a fast Unix-style binary file comparison program. To get a help screen, invoke the program without any arguments. CMP20 is written in C and compiled with Software Toolworks's C80. Its console output may be redirected to a file or to a device with a command like A>cmp20 file1 file2 >file12.dif or A>cmp20 file1 file2 >lst: