Re: Bit counting

Again, if its speed you want, you can't beat look up tables no matter how hard you try. Ray, you've missed the point of some of the explanations; VERY FAST cpu's as unbelievably fast as long as they are executing *on-chip* - as soon as they have to go to RAM for a table lookup, they suffer a performance hit equivalent to executing large amounts of in-line instructions - one array lookup might be worth 200 straight opcodes. Hence why an in-line scheme has to be found for critical inner-loop stuff. The precise details vary according to the pipelining and the amount of on-cpu instruction cache. G PS We'd seen the Escrow Officer Trading Card skit on t.p.c when it first was posted a couple of months ago ;-)