>With assembly is the way you want to do it anyway. That is how they >did the MMX versions, and I would actually try and port as much of >that as possible. Many of the macroized functions can possibly be >implemented with altivec instructions or combinations instead of mmx >instructions. That way you get for free a lot of code above that >just works. It looks like someone has already started this for you: >idctaltivec.c and idctaltivec.h? They don't appear to be too >complete, however, more like just a framework start. Don't forget >the -m7400.
I suggest you contact Paul Mackerras as he already did some altivec stuffs in mpeg2dec. Ben.
