---lf--------------
langio.pas
lf.pas  
lf1bld.pas
lf1cntl.pas
lf1dril.pas
lf1files.pas
lf1gen.pas
lf1less.pas
lf1main.pas
lf1scrns.pas
lf1strg.pas
lf1vars.pas
scrio.pas
also needs files logdata.fl1, engndx.fl1, lgndx.fl1 (--> namel.fl1, nameh.fl1)
---lf1bldwd---------
langio.pas
lf1bldwd.pas
lf1strg.pas
lf1vars.pas
lf1varix.pas
scrio.pas
also needs logdata.raw (-->logdata.fl1, endndx.fl1, lgndx.fl1)