[MPlayer-dev-eng] [PATCH] make --disable-mmx also disable sse{, 2}

[Reimar Döffinger]

Hello,
On Sun, Dec 17, 2006 at 12:20:09PM +0100, Reimar D?ffinger wrote:
> On Sun, Dec 17, 2006 at 06:43:32PM +0800, Zuxy Meng wrote:
> > 2006/12/17, Luca Barbato <lu_zero at gentoo.org>:
> > >since seems that sse requires mmx as the rest could make sense to be
> > >consistent...
> > 
> > I don't think so. Most SSE/SSE2 routines don't (and shouldn't IMHO)
> > involve any MMX instructions.
> 
> Huh? Doesn't SSE use the same registers as MMX? How then should it be
> possible to use it without using MMX (in some extremely special cases it
> might be possible without using MMX _instructions_ though, but even that
> I think is unlikely).

Sorry, I confused something. SSE "already" uses xmm, not sse2...
In that case disabling MMX should not disable SSE, true.

Greetings,
Reimar Döffinger