[Gllug] Are i386 & i586 rpm's interchangeable?

[Simon Trimmer]

Yes you're right, though most use space code doesn't have CPU specific
assembler in it.

The kernel on the other hand is another matter, either mandrake did something
like shipping a generally compatible (for cyrix and so on) or you've built
your own with the right cpu type.

-Simon
Simon Trimmer <simon at urbanmyth.org>

On Thu, 16 Aug 2001, Paul Brazier wrote:

> Does this mean then that if a 586 binary uses these instructions it
> won't work properly on a 486?
> Or is there some degree of backwards compatibility for the x86's at the
> machine code level?
>
> Is it just coincidence that the 586 binaries I've got do seem to run OK
> on a 486 - that the compiler optimizer hasn't taken advantage of the new
> instructions of the 586?
>
> > -----Original Message-----
> > From: addw at phcomp.co.uk
>
> > But: 586 has some instructions that if used can make an app go faster.
> > So if you compile for the arcitecture that you have you can get better
> > code.




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