> 1) Bad idea? Good idea? Why? * If you use typedefs in a header file that are easy to switch over, * so that groups of calculation are consistently done in one mode, * and you don't do stuff that would pipeline on a vector machine, then it is easy to benchmark the effect. The impact should be small.
> 2) Would this increase execution time? For most processors, no. The double math pipeline is usually the same speed as the single math pipeline. The exception is the altivec unit on PPC which only does its magic on singles. However, as I remember, GCC does not _currently_ support that unit from generic C source, so you wouldn't see the impact of that change. > Comments appreciated. If you do it properly, you can use doubles for non-realtime research purposes and singles for high speed realtime user-in-the-loop stuff. ... assuming it turns out to make a significant difference. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
