I've got RedHat 7.3 on an old computer with an AMD K6-2 processor. Looking
through /var/log/rpmpkgs, I see that nearly every package came from an i386
rpm. The exceptions are kernel-2.4.18-10.i586.rpm and
xmame-0.57.1-2.i586.rpm.
gcc 2.96 supports -march=k6, but the gcc info file doesn't say much. Is there
any difference between -march=k6 and the intel equivalent (which would be
-march=i586, I think)?
Are there any programs that would benefit from recompilation for the k6 or
i586? I expect XFree86 would be able to make use of the MMX instructions.
How about AMD's 3DNow extensions?