endian little unaligned ok x86 ix86 80x86 i86pc # for Solaris i386 i486 i586 i686 pentium2 pentium3 pentium4 pentium-m prescott k6 athlon atom pentium -> i586 pentiumpro -> i686 pentium_pro -> i686 pentium2 -> pentium2 pentiumii -> pentium2 pentium3 -> pentium3 pentiumiii -> pentium3 x86family5 -> i586 x86family6 -> i686 pentiumm -> pentium-m intelpentiumm -> pentium-m intelpentium4 -> pentium4 duron -> athlon athlon-xp -> athlon k7 -> athlon p2 -> i686 p3 -> i686 p4 -> pentium4 intelcput2250 -> prescott intelcput2300 -> prescott intelcput2400 -> prescott intelcput2500 -> prescott intelcput2600 -> prescott intelcput2700 -> prescott sse2:pentium4,prescott,pentium-m,atom ssse3:atom