The executable file has been given the name f77tof90 to avoid confusion with other conversion programs, but it will still be referred to as convert throughout the remainder of this article. Use anonymous as the userid and your name as the password. To use the program, simply type f77tof90 on the command line. All of the arguments can be entered on the same line. The following excerpt from a session on the C90 shows an example of how to use the conversion tool.
Text entered by the user is set in bold font.
Shown below are the listings for an original f77 source code and the resulting f90 code obtained using convert. These codes are presented simply to illustrate the capabilities and limitations of convert. Source code still starts in column 7 rather than column 1. Although convert did not carry out these conversions, this should not be viewed as a deficiency in the program. Newer versions of the emacs editor also have an f90 mode.