NAME
        SetFileSysTask -- Sets the default filesystem for the process (V36)

   SYNOPSIS
        oldport = SetFileSysTask(port)
        D0                        D1

        struct msgport *setfilesystask(struct msgport *)

   FUNCTION
        Sets the default filesystem task's port (pr_FileSystemTask) for the
        current process.

   INPUTS
        port - The pr_MsgPort of the default filesystem for the process

   RESULT
        oldport - The previous FileSysTask value

   SEE ALSO
        getfilesystask(), open()