Roland McGrath writes:
> I am tired of all this mail, so I read the source in
> /usr/src/gnu/usr.bin/gcc2/arch/i386 and the answer is it never
> produces new kinds of instructions, only different choices of 386
> instructions and much bigger alignment.  Code compiled with -m486 from
> the netbsd-current sources will run on a 386.  End of story.

Not quite the end. We still don't have consensus on whether we should
be compiling everything with -m486, and no one has given any facts on
what this does to Pentium performance.

.pm