fenv_t

type fenv_t = record

  __control_word: Word;

  __unused1: Word;

  __status_word: Word;

  __unused2: Word;

  __tags: Word;

  __unused3: Word;

  __eip: dword;

  __cs_selector: Word;

  flag0: Word;

  __data_offset: dword;

  __data_selector: Word;

  __unused5: Word;

end;