[U-Boot-Users] PPC440 Floating point?
wd at denx.de
Mon Apr 14 16:48:34 CEST 2003
In message <NCBBIIOPCEBAMFLLKKBKCEDNCGAA.RL at prodrive.nl> you wrote:
> We are planning to use the PPC440 but,
> I wan't to use floating point calculations on a PPC440,
> since this processor has no FPU, it not as easy I guess?
It's easy if you can live with the poor performance youwill get with
software floating point.
> - What do I need to do floating point calculations?
> - Does the GNU compiler support this feature?
If it is configured, correctly, yes. You can use our ELDK, which
> - Can I find documentation upon the power (CPU Cycles) needed to do a single
> 'add' or 'multiply'?
You do not really want to know this. It is a very frustrating
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
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