On Mon, Nov 14, 2005 at 08:18:11PM -0800, David Sharp wrote: > On 11/14/05, Brian Mattern <[EMAIL PROTECTED]> wrote: > > For all you amd64 users out there who are sick of going into epileptic > > seizures on certain edje animations: > > > > recompile edje with CFLAGS="-mfpmath=387" > > > > the default (sse) floating point math that amd64's use results in > > rounding errors causing the jitter. > > (finally we can use all those animated backgrounds also!) > > I have been compiling with -mfpmath=387 for a while. It does work, but > also results in a significant slowdown in performance. Still useable, > but noticeably slower. > > Sometime, i'd like to figure out if this is gcc bug, or (eek) a > processor bug. I compiled a couple quick tests of my own a while back > comparing -mfpmath=sse to -mfpmath=387. The problem occurs with > divisions. off-by-one in certain cases, but i didn't get much further > than that.
last i heard, using -mfpmath=sse and getting bad results was a gcc bug but it's been a while since i looked into that stuff -mike ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today Register for a JBoss Training Course. Free Certification Exam for All Training Attendees Through End of 2005. For more info visit: http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
