Hi James,

This is actually a bug in MPIR. It should work fine on your hardware.

Can you please post the error messages you get when you type configure.

Bill.

--- On Mon, 10/5/09, James <ja...@onyx.nurealm.net> wrote:

> From: James <ja...@onyx.nurealm.net>
> Subject: illegal instructions and sage
> To: "William Hart" <hart...@yahoo.com>
> Date: Monday, October 5, 2009, 6:56 AM
> Hi
>
> I'd like to plead for support of older hardware.
>
> I still run an older athlon,
>
>  $ cat /proc/cpuinfo
>  vendor_id       : AuthenticAMD
>  cpu family      : 6
>  model           : 4
>  model name      : AMD Athlon(tm) processor
>  stepping        : 2
>  cpu MHz         : 1333.169
>  cache size      : 256 KB
>  ...
>  cpuid level     : 1
>  wp              : yes
>  flags           : fpu
> vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
> pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow up
>  bogomips        : 2666.33
>  clflush size    : 32
>  power management:
>
> and I wanted to run a recent version of sage,
> sage-4.1.1-linux-Debian_GNU_Linux_5.0_lenny-i686-Linux.tar.gz.
>
> Well, as you probably already know, this will not work
> because of some of the
> instruction extensions used in mpir, particularly the sse
> instructions, which
> my processor does not have.  I tried to simply
> recompile mpir for my older
> processor, with
>
>  ./sage -f mpir-1.2.p4
>
> but, again, this will not work.  mpir does not even
> get past the "configure"
> tests.
>
> Apparently, mpir insists on using the extended instruction
> set, and simply
> fails to compile without them.
>
> This is quite the "show stopper" for any of us with older
> hardware - no mpir,
> and no sage either.
>
> So then, I now plead for your support of older hardware in
> mpir, by making
> whatever changes in "configure" and in the effected code,
> which will allow for
> some kind of "fallback" code to be produced.
>
> Please.  Please?
>
>
> James
>
>

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