> > The CPU (405GP) has no FPU, but I need to calculate sin and cos in a > > kernel module. > > Hmm... Bit off-topic, but why not use tables tailored to the > precision you need (if you want to compute any sin or cas any time) > or the equivalent of the Bresenham algorithm (if you only want to > draw arcs or ellipes) ?
Currently, the floating point problem is solved. I'm not going to use default sin and cos, because they are darn too slow. Lookuptables are way to inaccurate for the application (the formula used can be viewed at http://www.geniaal.be/), but I'll use other faster formula's (found a PDF from a Playstation programmer :) Tnx for the comment. -- Toni Van Remortel Wetenschappelijk Medewerker - D-science lab Real time Linux for embedded systems: http://linemb.d-sciencelab.com Tel: +32 3 205 61 72 - Fax: +32 3 205 61 95 E-mail: t.vanremortel at ha.be ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
