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Re: Sempron, 32 bit and/or 64 bit ?



Ron Johnson wrote:

On Mon, 03 Oct 2005 08:51:14 -0300
Bruno Buys <brunobuys@gmail.com> wrote:

Ron Johnson wrote:

On Mon, 3 Oct 2005 02:07:42 -0700
Han Chunwei <cwhann@gmail.com> wrote:
[snip]
I did a test with a sarge netinst cd back when sarge was still
testing, and it did detect sata disks. I doubt it won´t detect
today. By the way: semprons are 32bit even in a 64bit board (my
case).

Maybe, maybe not...

http://www.hardwaresecrets.com/article/201
   However, since last June AMD decided to activate the 64-bit
extensions on socket 754 Sempron processors. Because of that there are Sempron processors in the market that have these instructions and processors that don___t have them. How can we detect if a Sempron CPU has the 64-bit instruction
   set?

I wouldn't be surprised if Debian-amd64 ran on my box.

# x86info
x86info v1.15.  Dave Jones 2001-2005
Feedback to <davej@redhat.com>.

Found 1 CPU
--------------------------------------------------
Family: 15 Model: 12 Stepping: 0
CPU Model : Athlon 64 DH7-CG      <**********************
Feature flags:
fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflsh mmx fxsr sse sse2 Extended feature flags:
syscall nx mmxext Fast fxsave/fxrstor 3dnowext 3dnow lahf/sahf


Ok, its not that simple, I agree. But you mean semprons with 64 extensions are 32_64? Isn´t it the difference between having extensions and being 64bit pure? You can´t run a 32bit debian image on a pure 64bit, that´s what I meant before.



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