[fpc-pascal] speed of real calculations

Jonas Maebe jonas.maebe at elis.ugent.be
Wed Oct 18 09:10:48 CEST 2006


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).


Jonas



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