From: Adrian Bunk <bunk@stusta.de>
To: Mauro Ziliani <mauro@faresoftware.it>
Cc: yocto@yoctoproject.org
Subject: Re: How to disable SIMD extensions (mmx, sse3, ...)?
Date: Tue, 4 Jun 2019 14:45:51 +0300 [thread overview]
Message-ID: <20190604114551.GB2249@localhost> (raw)
In-Reply-To: <7e9f634a-175f-1e49-2d80-da364686d077@faresoftware.it>
On Tue, Jun 04, 2019 at 09:08:49AM +0200, Mauro Ziliani wrote:
> Hi all.
Hi Mauro,
> I'm working with a Geode LX800, porting an old application Debian-based into
> Yocto Thud.
I assume you are aware that the Geode LX is should still work with the
latest Debian releases.
> I need to disable some multimedia SIMD extensions for gcc compiler.
Why do you want to also disable MMX?
The AMD Geode LX does support MMX (and 3DNow!).
> Where I can do this?
>
> I suppose I have to disable SIMD extensions in conf/machine/geode_lx800.conf
> file (the machine descriptor file), but I cannot find any document about.
>
> Can you help me?
Passing -march=geode to the compiler should enable exactly the
instructions supported by the CPU.
> MZ
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
prev parent reply other threads:[~2019-06-04 11:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 7:08 How to disable SIMD extensions (mmx, sse3, ...)? Mauro Ziliani
2019-06-04 11:45 ` Adrian Bunk [this message]
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