Henk Vergonet wrote: > On Tue, Aug 28, 2007 at 12:19:57AM +0400, Manu Abraham wrote: >> Hi all >> >> While working on a tuner, i stumbled upon one of the usual problems >> (floating point operations) in kernel >> The options what i had were: >> >> * use integer math calculations >> * precompute the values where double precision is needed. >> >> That said, the first option i tried for a while, after a few days (i >> almost gave up ?) got really irritated with it. >> The second option seemed a bit more comfortable, to precalculate the values. >> >> The disadvantage in such a case is that the array which holds the >> precomputed value is quite large in size, with that in mind, a different >> question arose in my mind, whether such large arrays would be frowned >> upon in kernel >> >> The precomputed array is here >> >> http://www.jusst.de/manu/mc44s80x_array.c >> > > Hi Manu, > > What kind of calculations are we talking about? There must be a more space > efficient way... The calculations what i based it upon is here: http://paste.debian.net/35554 http://jusst.de/manu/1086M_36.125M.c http://jusst.de/manu/1086M_36.166M.c Thanks _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
