[Ffmpeg-devel] Re: [PATCH] SIMD accelected SNOW decoding

Guillaume Poirier guillaume.poirier
Mon Nov 28 10:41:37 CET 2005


Hi,

Michael Niedermayer wrote:
> On Mon, Nov 28, 2005 at 12:12:52AM +0100, Guillaume POIRIER wrote:
[..]
>>I still get a segfault though:
> 
> [...]
> 
>>0x00000000006a0d11 <ff_spatial_idwt_buffered_slice+1505>:       paddd 
>>(%rdx,%rdx,4),%xmm1
> 
> 
> this cannot work, its dereferencing (5*rdx), its like 
> *(int*)(5*x)

Ok, by bad; that had absolutely no chance to work whatsoever . I had
broken the register name while converting the IA-32 style regs to AMD64
style regs.

Please find in attachment the updated untested ASM. If someone could
test it on AMD64 64bit mode during the day, that would be most appreciated.

Guillaume
-------------- next part --------------
A non-text attachment was scrubbed...
Name: snow_mmx_sse2.h
Type: text/x-chdr
Size: 45642 bytes
Desc: not available
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20051128/4221a34b/attachment.h>



More information about the ffmpeg-devel mailing list