I upgraded my MingW compiler to gcc3.3 and tried the following CFLAGS to use the sse multimedia registers instead of the normal 387 fpu instructions
-O2 -march=pentium3 -msse -mfpmath=sse Wow -- seems like a nice improvement in the fps :-) You will need a P3 or better for this not exactly sure what the flags are for the AMD chips but it's probably worth experimenting If you have a Pentium 4 try -O2 -march=pentium4 -msse2 -mfpmath=sse2 and this will do the same for doubles that sse does for floats Note these compiler flags are present in earlier versions of gcc but the code emitted had a few problems. It seems as if 3.3 got things right at least for FGFS :-) Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
