Also less well known (even amongst OCaml programmers) is that the "10" bottom bits combination is used to indicate a result containing an exception. So all poi

Also less well known (even amongst OCaml programmers) is that the "10" bottom bits combination is used to indicate a result containing an exception. So all pointers must be aligned to at least 4 bytes, of course not a problem since 16 bit arches are not supported.