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Date: Wed, 17 Sep 2008 10:35:55 -0700
From: Grant Likely <grant.likely@secretlab.ca>
To: Shanyuan Gao <sygao.research@gmail.com>
Subject: Re: Back port Virtex5 FPU to Virtex4?
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On Tue, Aug 26, 2008 at 04:00:42PM -0400, Shanyuan Gao wrote:
> I am working with ML410 and have FPU (single precision) working.   
> However, the FPU for V5 looks more attractive because it's double  
> precision.  So is it possible to back port the double precision FPU to 
> V4?

As far as I understand there are limitations in the V4 APU interface
that makes the full double precision FPU unfeasible.  The Xilinx folks
can correct me if I'm wrong.

g.