I don't want to have the same performance as for floating-point operations. I have asked if there is some library implementing with fixed-point operations or some suggestion on how these operations could be implemented. My approach, with a C++ class, is too slow for my needs. On 1/1/08, Tom St Denis <tstdenis@xxxxxxxxxxxxxxxx> wrote: > > > > On Tue 01/01/08 9:47 AM , "Cristea Bogdan" sent: > > I use an Athlon 64 double core processor under openSuSE 10.2 (gcc > > > > 4.2.2). The trouble is that implementing fixed point operations in C++ > > > > seems to be very slow with respect to floating-point operations. I > > > > have hoped to find something faster. > > > > Ideally I would like to have a data type in C++ with all common > > > > operations in order to do some research with chaotic maps. > > > > Bogdan > > Which is exactly my point. The K8 Athlon has a fairly fast FPU and you're not likely to beat it in performance when using fixed point, even in assembler. > > Tom > > -- Bogdan Cristea
