It is written in a metalanguage that can be read by any ported, i.e. the code can be adapted for a certain platform and compiled for the platform it will be functioning in.
It is written in a metalanguage. This metalanguage can be read by any ported. This metalanguage can be i.e. the code can be adapted for a certain platform. This metalanguage can be compiled for the platform. It will be functioning in the platform. This generally means this. This is for programs.