[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <BANLkTi=Uhm7MUAy_ort_Nrq1YUV_pZqOqg@mail.gmail.com>
Date: Mon, 6 Jun 2011 20:10:27 -0300
From: Yuri Gonzaga <yuriggc@...il.com>
To: crypt-dev@...ts.openwall.com
Subject: Re: alternative approach
>
> How large was the reduction? Can you also try simple "a ^ b" (no mask)
> and simple "a + b", and report the LUT counts for all four (original
> full pcadd(), your "a ^ b ^ mask", and these two I suggested)? These
> numbers might give us some hints.
Ok. I have uploaded a pdf file reporting the 4 cases' results here:
http://bit.ly/iLaZQB
It was 131 LUTs for your old code synthesized for Virtex-6. Why has
> this reduced to 105 now? Is this for your simplified pcadd() (which
> doesn't actually do the right thing)?
I don't know. Maybe, the synthesizer is able to optimize better to this
device.
I have used the original approach to the pcadd()
Yuri.
Content of type "text/html" skipped
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
