Re: [Valgrind-users] unsupported CPU in i486 subarch

[Gustavo M. <gmo...@gm...>]

Ok, but PC-104 are usually i486 and is the most commonly used in
industrial embedded systems, would be good to support it.

GCM
On Mon, Sep 1, 2008 at 15:38, Julian Seward <js...@ac...> wrote:
>
>> The original poster seeks the specific reasons why a 486 isn't good enough.
>> Which features of a Pentium-I are essential to valgrind?
>
> None.  486 isn't supported only because it's yet another cpu variant
> which would have to be special-cased in code generation (eg, it doesn't
> support cmov) and other aspects (cpuid?), and then verified for each
> release.  More code and variants always equates with more support
> effort in the end, and AFAIR this is the first time in 5+ years that
> we've been asked for 486 support.
>
> And to tell the truth, I never expected anyone to run it on such
> a lowly machine.  By the time this project started, Pentium-I or
> equivalent (AMD K6s) were pretty much everywhere.
>
> J
>
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