Re: [ARMini-support] Some ports for NEON/VFP
- From: Franck Martinaux <franck.martinaux@xxxxxxxxx>
- To: armini-support@xxxxxxxxxxxxx
- Date: Wed, 15 Aug 2012 17:40:39 +0200
Hi Andrew,
Regarding the SharedUnixLib, for sure 1.13 is less stable and I notice
that in some (rare) cases we can expect crashes of the application or
RiscOS.
So I understand the GCC folks point of view.
Having say that, I am perfectly fine with it as it sounds to crash
only when some VFP / neon contextes are called. My first expectation
is to gain in performance.
For your SSL Module, I can help, just send me the source whenever it
is convenient for you.
Sincerely,
Franck
On 8/15/12, A Rawnsley <rcomp@xxxxxxxxxxx> wrote:
> In message <CAAdMGhcAzMFwyP_eEgyk7E7D3ZGBQeZEi5tHjWmNv2vebDqtOA@xxxxxx
> mail.com>
> Franck Martinaux <franck.martinaux@xxxxxxxxx> wrote:
>
>> Hi,
>
>> I managed to backport the neon/vfp patches for GCC 4.6.4 to GCC 4.7.2.
>> And a version 1.13 of SharedUnixlib
>
>> I recompiled / port some applications with the neon/vfp flags and
>> armv7 optimizations.
>
>> So far I have a version of dosbox that is more than 50% faster than
>> the one available on riscos.info on my beagleboard XM
>> I have also a version of hatari 1.62 (Atari ST emulator) that works
>> like a charm in ST / STe mode (did not try the falcon mode).
>
>> If you are interested to test my ports, just send me an email, I will
>> provide you the archives.
>
>> I plan to port more applications to leverage on the armv7+neon boost
>> of performance.
>
> That all sounds excellent. One thing though - when I checked with the
> GCC folks about releasing updated SharedUnixLib 1.13, I got a rather
> negative reply - they weren't supportive at all.
>
> Regarding DOSbox, the speed boost is definately most welcome, and
> probably makes it quite pleasant to use. I believe Chris Gransden was
> also doing some work on DOSbox, so maybe some collaboration is
> worthwhile.
>
> If you're interested in porting type stuff, we could desparately do
> with an update to our SSL module (essentially OpenSSL with a
> Socket-style wrapper). I have some source code, but not the
> programming resources to do updates (everyone here is flat out on
> other stuff).
>
> Best wishes,
>
> Andrew
>
> --
> R-Comp
> 22 Robert Moffat, High Legh, Knutsford, Cheshire WA16 6PS
> Tel: 01925 755043 Fax: 01925 757377 http://www.rcomp.co.uk
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