[fpc-pascal] speed of real calculations

[Florian Klaempfl]

Jonas Maebe wrote:
> 
> On 18 okt 2006, at 08:31, Marc Santhoff wrote:
> 
>> is anyone aware of or has done a calculations speed comparison for the
>> four float types (single, double, extended, comp)?
> 
> For the x87, the only difference can come from cache misses/hits due to
> the different sizes they take up in memory, because the x87 performs all
> calculations using either extended (the default in FPC) or double
> precision (user-settable).

You can set it also to single. But these settings affect only division, roots
and other complex operations.