>>>>> "Xavier" == Xavier Leroy <Xavier.Leroy@inria.fr> writes:
> The Intel x86 has an interesting quirk: it computes internally in
> extended precision (80 bits), and rounds to double precision (64 bits)
> only when storing a result in memory.  This means that in a piece of

But you can make it work in 64bit-mode (or 32bit-mode for that matter)
at which point the discrepencies between true-real 64bit and x86-64bit become
very small (mostly due to the exponent still allowing a wider range).
Of course, there might be good reasons for not using this mode-switch.


	Stefan