[DGD] 64-bit platform question

Felix A. Croes felix at dworkin.nl
Mon Feb 22 12:41:46 CET 2010


bart at wotf.org wrote:

>[...]
> Besides x86 I found that later 68k fpus do support long double natively.
>
> Which other platforms do?

All of the ones that I looked at do, but there is no standard format.  The
128 bit floats of some platforms have fewer bits in the exponent than the
80 bit floats of x86.  And 128 bit floats <would> increase the size of
the value struct.

Additionally, I have not found any math libraries that work on anything
larger than an IEEE double.

Regards,
Felix Croes



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