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.

> --
> rephorm
>
>
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