Date: Thu, 17 Mar 2011 19:03:18 -0600 From: Chad Perrin <perrin@apotheon.com> To: freebsd-questions@freebsd.org Subject: Re: How to tell whether CPU supports x64? Message-ID: <20110318010318.GA16640@guilt.hydra> In-Reply-To: <AANLkTim-ZDaTjiMvTs2HMPbYzBuT_UkyNCvdRvafoe2U@mail.gmail.com> References: <20110317213336.GF10069@ece.pdx.edu> <AANLkTi=WHMJbTAFHDXD4R5R095oL7%2BMmEexQHVxysgga@mail.gmail.com> <AANLkTi=47x6X858YYnM=Lr%2BWPNDA%2BkBZM64YnY4H4079@mail.gmail.com> <20110318003037.GB16316@guilt.hydra> <AANLkTim-ZDaTjiMvTs2HMPbYzBuT_UkyNCvdRvafoe2U@mail.gmail.com>
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--OgqxwSJOaUobr8KG Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 17, 2011 at 07:54:13PM -0500, Adam Vande More wrote: > On Thu, Mar 17, 2011 at 7:30 PM, Chad Perrin <perrin@apotheon.com> wrote: >=20 > > . . . 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? > > >=20 > No, it is a function of it's ancestry, real mode, protected mode(16 & 32), > and long mode. Completely 64 bit native architectures like IA-64 have no > need for such tricks, That's what I thought -- I just wanted to be sure before committing myself to a statement to that effect, since CPU arhictectures are not my specialty by any stretch of the imagination. --=20 Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ] --OgqxwSJOaUobr8KG Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAk2Cr1YACgkQ9mn/Pj01uKX+RACfWyopPvzPRP3xTlp7JXi6B8fU C70AoNf+f0LhT6wJUldgqHwGGCSxGlDJ =TLCc -----END PGP SIGNATURE----- --OgqxwSJOaUobr8KG--
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