> (Via only recently started supporting them, and AMD K6s are still used). That bit is incorrect. VIA support the i686 instruction set correctly. Unfortunately the GNU compiler suite generates code for i686 plus optional cmov instruction without checks. It's a long standing compiler bug. Originally the big benefits from building i686 were the cmov instruction so it was deemed not worth fixing. Today cmov on the newer cpus is a loss but the compiler people haven't fixed the bug. Basically gcc "i686" is slighly in excess of intel defined i686. Alan
