Messages in this thread | | | Date | Wed, 15 Jan 2014 00:25:38 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH RFC] reciprocal_divide: correction/update of the algorithm |
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On Tue, Jan 14, 2014 at 02:45:37PM -0800, Eric Dumazet wrote: > Even on a Jaguar, the proposed alternative
I don't know what Jaguar you guys are talking about but the Jaguar I know - Fam16h - has an int hardware divider:
http://developer.amd.com/wordpress/media/2012/10/SOG_16h_52128_PUB_Rev1_1.pdf
So all that talk about microcode is plain wrong. The hardware divider comes from Llano (F12h) so it must be some other Jaguar, maybe Bobcat.
:-)
If it is Bobcat, then it has a 1-bit per cycle ucode int divider.
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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