for that particular chip, the compiler will not generate any code that
does not run on the i386 without the @samp{-march=@var{cpu type}} option
being used. @samp{i586} is equivalent to @samp{pentium} and @samp{i686}
-is equivalent to @samp{pentiumpro}. @samp{k6} and @samp{athlon} sre the
+is equivalent to @samp{pentiumpro}. @samp{k6} and @samp{athlon} are the
AMD chips as opposed to the Intel ones.
@item -march=@var{cpu type}