[PD-dev] CVS pd linux build updated and inventory of changes

Thomas Grill t.grill at gmx.net
Tue Oct 7 01:33:41 CEST 2003


> Quoting guenter geiger <geiger at xdv.org>:
>> - SIMD functions for Windows (added by Thomas)
>> I think the SIMD functions are a great thing, and eventually it
>> would be good to have these on all architectures.
>> In this case it would be nice to have the assembler blocks in macros,
>> and eventually in a different file (might be a .h as well).
> Where are these SIMD (MMX? SSE? SSE2?) functions in the CVS?  I just 
> did a
> checkout of the maiin branch and don't see where they are.  I'd like 
> to do some
> Altivec for pd at some point (GEM, LAME are ahead of it on the list), 
> and want
> to see the x86 code.

the SIMD (SSE) functions are only in the devel branch of the CVS. Some 
major functions dealing with copying, setting, adding, multiplying data 
have been adapted. Please also note that for meaningful usage of SIMD 
the signal vectors have to be aligned (which is also taken care of in 
the devel version).
In flext exists a detector function for various SIMD capabilities (in 
flsimd.cpp) too which i haven't implemented in PD yet (maybe flext 
should be implemented into PD ;-)  )

In principle i also think that external assembler blocks would be 
better but i wasn't sure how to do it right since i'm not too familiar 
with the GNU assembler.

good gain,

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