[FFmpeg-devel] [PATCH] update doc/optimization.txt

Peter Ross pross
Mon Sep 20 17:23:24 CEST 2010


On Mon, Sep 20, 2010 at 03:31:31PM +0200, Michael Niedermayer wrote:
> On Fri, Sep 17, 2010 at 03:53:45PM -0400, Ronald S. Bultje wrote:
> > Hi,
> > 
> > On Fri, Sep 17, 2010 at 2:49 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > > On Fri, Sep 17, 2010 at 06:23:16PM +0100, M?ns Rullg?rd wrote:
> > >> "Ronald S. Bultje" <rsbultje at gmail.com> writes:
> > >>
> > >> > Hi,
> > >> >
> > >> > $subj, fixes a typo and mentions yasm.
> > >> >
> > >> > I could word it stronger ("if you write new code, yasm is preferred
> > >> > for non-inlined functions") if we can agree on that (which I don't
> > >> > think we do yet).
> > >>
> > >> Does anyone who actually writes any asm nowadays disagree?
> > >
> > > i dont know, but the one maintaining the x86 asm does and the project
> > > leader disagrees too
> > 
> > So is the patch as posted ok then?
> 
> ive no oppinon on this it feels a bit moving toward inconsistent asm mix
> though

FWIW:

Xvid uses nasm/yasm to provide fast routines across gcc and msvc and friends.

The decision to was made during the Instruction Set War. Back then msvc6 did
not support the latest opcodes.

-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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