endian little unaligned ok x86-64 x86_64 # for RPM em64t x64 k8 k10 nocona core2 nehalem westmere core2duo -> core2 intelcore2 -> core2 intelcore2duo -> core2 sledgehammer -> k8 opteron -> k8 amdopteron -> k8 athlon64 -> k8 barcelona -> k10 sse2:all ssse3:core2,nehalem,westmere aes_ni:westmere