Le 30/09/2011 09:21, Simon Schwarz a écrit : > On 09/29/2011 06:14 PM, Andreas Bießmann wrote: > [SNIP] >> Simon, who has just finished his bachelor thesis did this test for me >> (thanks to this way ...). >> It seems using more register for ldmia/stmia does _not_ improve the copy >> time that much. Simon measured 10.8 ms for r9-r10 and 10.65 ms for >> r3-r10 (unfortunately >> I do not know which system he tested, but I guess devkit8000). >> >> best regards >> >> Andreas Bießmann >> >> > Yes, devkit8000. > > Regards > Simon
Thanks to both of you. I'd somehow expected there not to be a great increase as the true limit is bus width. So let us stick with two registers and avoid register pushes/pops. Amicalement, -- Albert. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
