[MPlayer-dev-eng] [PATCH] implied CPU extensions
Jan Knutar
jknutar at nic.fi
Sat Apr 22 15:42:55 CEST 2006
On Saturday 22 April 2006 15:59, Diego Biurrun wrote:
> I wonder if the following patch is safe to apply. IMO it should be, but
> I'd like to doublecheck..
>
> Is it possible for e.g. sse to appear as processor flag, but not mmxext
> while the processor *does* support mmxext?
I checked on a Pentium 3 Coppermine, and a Pentium 4 3.0Ghz HT.
Both support mmxext, but don't report it in cpuflags.
With the changes you commited to configure, mmx2 will be disabled
on all Intel CPUs, which will obviously be a large speed impact.
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