3 ms·

Windows x64 used to emulate SAHF/LAHF and 3DNow! PREFETCH. This was eliminated in x64 Win8.1, ending support for all 90nm Prescott etc CPUs (the newer 65nm Ceda

by yuhong 12y ago

Windows x64 used to emulate SAHF/LAHF and 3DNow! PREFETCH. This was eliminated in x64 Win8.1, ending support for all 90nm Prescott etc CPUs (the newer 65nm Cedar Mill etc are still supported).