How to tell whether CPU supports x64?

Chad Perrin perrin at
Fri Mar 18 00:42:20 UTC 2011

On Thu, Mar 17, 2011 at 06:27:13PM -0500, Adam Vande More wrote:
> yes that is correct, LM stands for Long Mode which indicates amd64 support.
> If your CPU doesn't list it, it's either a 32 bit only CPU, or it's a bug.

. . . or maybe it is a 64 bit CPU that is not x86_64/amd64 compatible.
Do IA-64 (Itanium), IBM POWER, and SPARC 64 bit processors use the same
Long Mode functionality?

Chad Perrin [ original content licensed OWL: ]
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 196 bytes
Desc: not available
Url :

More information about the freebsd-questions mailing list