[Ffmpeg-devel] mmx/sse optimizations

Michel Bardiaux mbardiaux
Thu Dec 22 19:26:57 CET 2005


Mike Melanson wrote:
> Rich Felker wrote:
> 
>> Because if I want to write asm I'll write asm directly. Using crap
>> like this to write asm is like using babelfish to write english.. ;)
> 
> 
>     I'll be the lone dissenting voice and state that this thing looks 
> like a rather interesting tool.

You're not alone, half of me is with you: I havent tried the tool, so I 
take the only scientifically valid attitude: I am neither for nor 
against it.

> 
>> BTW it's also crap because it's non-free.
> 
> 
>     So get to work on a free version.
> 
>> That may be useful. GUI tools to 'help' newbies write asm are not
>> useful.
> 
> 
>     SIMD code is a different beast than normal ASM. I think this tool 
> has its place. Perhaps another idea would be a tool that enables the 
> user to describe some kind of general algorithm with a set of SIMD-like 
> primitives. Then the tool decides what the equivalent code would look 
> like using different SIMD sets (MMX, SSE2, AltiVec) AND can output the 
> correct ASM syntax for use in gcc and MSVC.
> 


-- 
Michel Bardiaux
R&D Director
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