[FFmpeg-devel] [PATCH/RFC] intreadwrite.h rewrite

Måns Rullgård mans
Mon Apr 6 14:46:04 CEST 2009

Gwenole Beauchesne <gbeauchesne at splitted-desktop.com> writes:

> On Mon, 6 Apr 2009, M?ns Rullg?rd wrote:
>>> Nice, I assume HAVE_LDBRX comes from a configure check, isn't it?
>> Yes, it will be set in configure.  The stupid gnu assembler lets it
>> through no matter what CPU is selected though, so I have to enable it
>> manually for those that have it.
> Your GNU assembler is probably built with a default CPU supporting
> that instruction...

-mcpu=7450 should override whatever the default is.

>>  Does any CPU other than the Cell have this instruction?
> Any CPU implementing PowerPC ISA V2.06. That is, POWER7 and probably
> some newer e500. For the former, I pretty doubt it's mainstream. ;-) I
> don't know for the latter.

Mainstream or not doesn't matter to FFmpeg.  ;-)

M?ns Rullg?rd
mans at mansr.com

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