On Sat, Dec 31, 2011 at 03:42:35PM +0100, Harry van der Wolf wrote:
> I have now also compiled multiblend for i386 and x86_64 for OSX. I don't
> think ppc will succeed as sse2 is not supported on ppc.
The code just uses some optimizations that can easily be written out
for other processors.
For example:
__m128i _mm_add_epi16 (__m128i a, __m128i b);
would be something like:
typedef short[8] __m128i;
__m128i add_epi16 (__m128i a, __m128i b)
{
int i;
__m128i t;
for (i=0;i<8;i++)
t[i] = a[i] + b[i];
return t;
}
The question is: does the compiler support passing 128bit variables
around like that.
The thing is that sse speeds this kind of operation up a lot. :-)
Hopefully a library that provides these compatibility functions
already exists.
Roger.
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