On Wed, 2013-02-20 at 22:33 +0800, Alex Shi wrote: > > There's generally a better value than 100 when using computers.. > seeing > > how 100 is 64+32+4. > > I didn't find a good example for this. and no idea of your suggestion, > would you like to explain a bit more?
Basically what you're doing ends up being fixed point math, using 100 as unit is inefficient, pick a power-of-2 and everything reduces to bit-shifts. http://en.wikipedia.org/wiki/Fixed-point_arithmetic So use 128 or 1024 or whatever and you don't need mult and div instructions to represent [0,1] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
