From: Stroller <stroller@stellar.eclipse.co.uk>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] USE="mmx mmxext sse sse2 ssse3 3dnow 3dnowext"
Date: Thu, 28 May 2009 21:19:37 +0100 [thread overview]
Message-ID: <047506CD-647D-472E-A96B-96C278C31F51@stellar.eclipse.co.uk> (raw)
In-Reply-To: <c1c10dab0905281308m7dc8987dw43fb9253401dac91@mail.gmail.com>
On 28 May 2009, at 21:08, Ward Poelmans wrote:
> On Thu, May 28, 2009 at 21:13, Stroller <stroller@stellar.eclipse.co.uk
> > wrote:
>>
>> I'm not absolutely sure that the USE flags enable hand-written
>> assembler
>> code, but what I do know is that:
>
> Don't make it more difficult then it is. SSE, etc means the CPU
> support a certain set of instructions. When you enable the use flag
> for it, mplayer will make use of the instructions.
But, surely "-march=" also instructs gcc to support the additional
instructions. Suggest you re-read Daniel's post that I was replying to.
What's the difference between supporting the "certain set of
instructions" with "-march=" and doing so with USEs?
Or doesn't "-march=" support additional "certain sets of
instructions". What does it do, then?
Stroller.
next prev parent reply other threads:[~2009-05-28 20:19 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-26 4:27 [gentoo-user] USE="mmx mmxext sse sse2 ssse3 3dnow 3dnowext" Stroller
2009-05-26 4:37 ` Adam Carter
2009-05-26 4:59 ` Volker Armin Hemmann
2009-05-26 4:37 ` Volker Armin Hemmann
2009-05-26 5:00 ` Stroller
2009-05-26 5:10 ` Volker Armin Hemmann
2009-05-26 6:15 ` Stroller
2009-05-26 6:27 ` Volker Armin Hemmann
2009-05-26 8:34 ` Stroller
2009-05-26 14:31 ` Daniel Iliev
2009-05-26 21:07 ` Stroller
2009-05-27 0:47 ` Daniel Iliev
2009-05-27 8:14 ` Stroller
2009-05-27 10:00 ` Daniel Iliev
2009-05-27 12:14 ` Stroller
2009-05-27 19:57 ` Wyatt Epp
2009-05-27 20:04 ` Volker Armin Hemmann
2009-05-27 20:09 ` Alan McKinnon
2009-05-27 20:40 ` Wyatt Epp
2009-05-27 20:47 ` Volker Armin Hemmann
2009-05-27 21:04 ` Mike Edenfield
2009-05-27 21:12 ` Alan McKinnon
2009-05-27 23:00 ` Adam Carter
2009-05-27 20:08 ` Ward Poelmans
2009-05-27 21:04 ` Mike Edenfield
2009-05-27 21:23 ` Arttu V.
2009-05-28 10:17 ` Daniel Iliev
2009-05-28 19:13 ` Stroller
2009-05-28 20:08 ` Ward Poelmans
2009-05-28 20:19 ` Stroller [this message]
2009-05-28 20:27 ` Ward Poelmans
2009-05-28 20:38 ` Stroller
2009-05-29 5:30 ` Graham Murray
2009-05-29 6:36 ` Volker Armin Hemmann
2009-05-29 6:55 ` Volker Armin Hemmann
2009-05-29 15:25 ` Mike Edenfield
2009-05-29 7:51 ` Neil Bothwick
2009-05-26 22:20 ` KH
2009-05-26 22:26 ` KH
2009-05-26 22:32 ` Alan McKinnon
2009-05-26 13:26 ` [gentoo-user] " James
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