On Fri, Oct 22, 2021 at 10:45 AM Niels Möller <ni...@lysator.liu.se> wrote:

> Maamoun TK <maamoun...@googlemail.com> writes:
>
> > I've added a new patch that optimizes SHA3 permute function for S390x
> > architecture
> https://git.lysator.liu.se/nettle/nettle/-/merge_requests/36
> > More about the patch in merge request description.
>
> Really nice speedup, and interesting that it's significantly faster than
> your previous version using the special sha3 instructions.
>
> I'm sorry the existing implementations are quite hard to follow, with
> irregular data movements and rather unstructured comments. It must have
> been a bit challenging to decipher the x86_64 version. Do you have any
> ideas on how to improve documentation and comments?
>

Actually, I need to invest more time on improving the documentation and
comments as I wasn't give enough attention for them during implementing the
s390x version. I'll see what I can do in this matter.

regards,
Mamone
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