Thank you very much! But bad news, I checked phatk 2.0, my old and my new kernel version and all of em use less GPRs. but 1 - 2 ALU OPs more ... SDK 2.5 is a sucker until (again) some optimisations have been done. Phat, how do you order the commands to achieve best performance, are you using the ASM code from KernelAnalyzer or is it trial and error?

Dia