On Fri, 16 Jan 2004 21:45:33 +0300 Dmitriy Kurshakov <intruder_@xxxxxxxxxx> wrote: > ôÏ ÅÓÔØ ÓÂÏÒËÕ ÐÕÓËÁÔØ ÎÁ i386, Á ÉÓÐÏÌØÚÏ×ÁÔØ ÉÎÓÔÒÕËÃÉÉ i686? man gcc: -mcpu=cpu-type Tune to cpu-type everything applicable about the generated code, except for the ABI and the set of available instructions. The choices for cpu-type are i386, i486, i586, i686, pentium, pentium-mmx, pentiumpro, pentium2, pentium3, pentium4, k6, k6-2, k6-3, athlon, athlon-tbird, athlon-4, athlon-xp and athlon-mp. /* ïÓÏÂÅÎÎÏ ×ÔÏÒÏÊ ÁÂÚÁÃ: */ While picking a specific cpu-type will schedule things appropriately for that particular chip, the compiler will not generate any code that does not run on the i386 without the -march=cpu-type option being used. i586 is equivalent to pentium and i686 is equivalent to pentiumpro. k6 and athlon are the AMD chips as opposed to the Intel ones.