2005/10/6, Marcus Meissner :

On Thu, Oct 06, 2005 at 06:20:05PM +0200, meister@netz00.com wrote:

...

Hi,

on http://www.opensuse.org/Released_Version is written:

x86 This architecture supports the following processors: Intel Pentium 1-4 AMD Duron, Athlon, Athlon XP, Athlon MP

x86-64 This architecture supports the following processors: AMD Opteron, Athlon 64. Sempron, Turion 64 Intel Xeon, Xeon MP, Pentium 4 Extreme Edition

Well, the Sempron is a 64 bit processor with a 32 bit instruction set. So you need x86 for a Sempron.

But the Sempron is a x86-64 processor? The AMD64 and Intel EM64T all have 32bit compatmode instructions.

They are 32bits processor with 64bits ( in fact only 40bits ) set instructions. That's why you can used for 32bits applications. -- Marcel Mourguiart

jdd wrote:

Marcus Meissner wrote:

...

But the Sempron is a x86-64 processor? The AMD64 and Intel EM64T all have 32bit compatmode instructions.

I'm pretty sure my low cost sempron is not a 64 bits processor :-)

jdd

They're not. At least, not yet. They are similar to the 64bit chips, but the 64bit parts are either not there, or disabled.

Marcel Mourguiart wrote:

2005/10/6, Alain Black :

...

jdd wrote:

...

Marcus Meissner wrote:

...

But the Sempron is a x86-64 processor? The AMD64 and Intel EM64T all have 32bit compatmode instructions.

I'm pretty sure my low cost sempron is not a 64 bits processor :-)

jdd

They're not. At least, not yet. They are similar to the 64bit chips, but the 64bit parts are either not there, or disabled.

???

Yes they are in fact I'm using one right now, and i repeat:

there are 3 Sempron:

1. Socket A, only 32bits 2. Socket 754 32 bits ( Is a normal Athlon 64 socket 64, with half cache L2 and blocked 64bits instructions.) 3. Socket 754 64bits ( Same as above but with 64bits instructions.)

Maybe is easier to called: "Sempron" and "Sempron 64".

4. Socket 939 64bits ( not realized yet, but it will be realized this year )

Maybe you should take a look here: http://www.amd.com/us-en/Corporate/VirtualPressRoom/0,,51_104_608,00.html

The Sempron code name "Palermo" is the one with 64bits instructions available, and are for sale since July

You can see the official prize list here: http://www.amd.com/us-en/Corporate/VirtualPressRoom/0,,51_104_609,00.html

And if you still don't believe me, then take a look here: http://www.newegg.com/Product/ProductList.asp?Submit=Go&DEPA=0&type=&description=sempron+64&Category=0&minPrice=&maxPrice=&Go.x=0&Go.y=0

-- Marcel Mourguiart

Cool, I didn't realize AMD had started shipping them. Must have missed that announcement. Thanks for the correction.