[FFmpeg-devel] [PATCH] convert dsputilenc_mmx.c hadamard functions to yasm

Ronald S. Bultje rsbultje
Fri Sep 17 14:08:14 CEST 2010


2010/9/17 M?ns Rullg?rd <mans at mansr.com>:
> "Ronald S. Bultje" <rsbultje at gmail.com> writes:
>> On Thu, Sep 16, 2010 at 11:18 PM, Ramiro Polla <ramiro.polla at gmail.com> wrote:
>>> Didn't work =(. Now we get segfault somewhere.
>> OK, so most likely this is something very, very simple like not
>> sign-extending a 32bit integer to 64bit (%ifdef ARCH_X86_64 movsxd r3,
>> r3d %endif) or something along those lines.
> Wouldn't that fail on all 64-bit systems? ?It passes on the Unixy ones.

That's what I'd expect also, but I've seen (when testing other
changes) that it doesn't always. I don't really know why. Anyway,
whatever the cause, I'll figure it out...


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