search for: wmmx

Jean-Marc, At 08:12 PM 4/1/2005, Jean-Marc Valin wrote: >I'm not even sure what WMMX is, This is just a short name for the MMX/SSE extensions/intrinsic functions for the intel XSCALE processors. Most of the WMMX instructions have MMX/SSE equivalents, plus there are a few other interesting functions. We have been thinking about doing WMMX optimizations of the various speex asm fu...

I work with the Microsoft Embedded Visual C++, and i don't have a linux machine with me. I need to have the best performance in order to run my application for the Intel XSCale with MMX. I don't know if i can compile for this processor with the best performance using the Microsoft compiler. I would like a help regarding how to get or build this .obj. Thank you. Cesar Bremer Pinheiro

Hi, I'm not even sure what WMMX is, so I have no idea how to use it. For sure you would at least need to write some assembly. As for the current inline assembly parts (for the ARMv4 arch), you would need to convert them to VC++. It shouldn't be too hard, just push/load the registers at the beginning and then save/pop at the e...

Hi, I am working on performance tuning of opus library on ARMv5E platform. Our marvell soc also have wmmx simd coprocessor for speed optimization. Now, I have profiled quant_all_bands() function and it seems its taking almost 51% time of whole frame decoding. I have tried to find out the hot spots parts in this function and it seems quant_all_partition() function is taking too much time. Now I m...