Date: Tue, 16 Sep 2008 07:38:01 -0700 (PDT) From: Pedro Giffuni <pfgshield-freebsd@yahoo.com> To: Peter Jeremy <peterjeremy@optushome.com.au>, freebsd-amd64@freebsd.org Cc: Oliver Fromme <olli@fromme.com> Subject: Re: Why VESA and DPMS are available only for i386? Message-ID: <790198.8149.qm@web32708.mail.mud.yahoo.com> In-Reply-To: <20080916074657.GF15376@server.vk2pj.dyndns.org>
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(moved from -current to -amd64) --- Mar 16/9/08, Peter Jeremy <peterjeremy@optushome.com.au> ha scritto: ... > On 2008-Sep-15 13:43:31 -0700, Pedro Giffuni > <pfgshield-freebsd@yahoo.com> wrote: > >I can't find any reference, but according to the > Wikipedia, even in long mode AMD64 is able to run 16-bit (or > 80286) protected mode applications: >=20 > AMD64 Architecture Programmer's Manual, Volume 1: > Application > Programming - No. 24592 states: > "Compatibility mode - the second submode of long mode > - allows 64-bit > operating systems to run existing 16-bit and 32-bit x86 > applications. These legacy applications run in > compatibility mode > without recompilation." >=20 Thanks! The precise link is here (sorry for the broken link): http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/245= 92.pdf in section 1.2.3. I guess having bios16() and bios32() would be useful for virtualized enviro= nments too. Pedro.=0A=0A__________________________________________________=0ADo You Yah= oo!?=0APoco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da= tanto spazio gratuito per i tuoi file e i messaggi =0Ahttp://mail.yahoo.it=
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