Date: Thu, 17 Mar 2011 19:54:13 -0500 From: Adam Vande More <amvandemore@gmail.com> To: freebsd-questions@freebsd.org Cc: Chad Perrin <perrin@apotheon.com> Subject: Re: How to tell whether CPU supports x64? Message-ID: <AANLkTim-ZDaTjiMvTs2HMPbYzBuT_UkyNCvdRvafoe2U@mail.gmail.com> In-Reply-To: <20110318003037.GB16316@guilt.hydra> References: <20110317213336.GF10069@ece.pdx.edu> <AANLkTi=WHMJbTAFHDXD4R5R095oL7%2BMmEexQHVxysgga@mail.gmail.com> <AANLkTi=47x6X858YYnM=Lr%2BWPNDA%2BkBZM64YnY4H4079@mail.gmail.com> <20110318003037.GB16316@guilt.hydra>
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On Thu, Mar 17, 2011 at 7:30 PM, Chad Perrin <perrin@apotheon.com> wrote: > . . . 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? > 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, -- Adam Vande More
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