Date: Sat, 10 Dec 2005 08:40:33 -0800 (PST) From: Danial Thom <danial_thom@yahoo.com> To: Parv <parv@pair.com>, "Guillaume R." <raimondeau@gmail.com> Cc: freebsd-questions@freebsd.org, obrien@freebsd.org Subject: Re: A stupid 64bit question ... but ... Message-ID: <20051210164033.40465.qmail@web33303.mail.mud.yahoo.com> In-Reply-To: <20051205091409.GB65131@holestein.holy.cow>
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--- Parv <parv@pair.com> wrote: > in message > <7ab0fd580512042313k15a93166i@mail.gmail.com>, > wrote Guillaume R. thusly... > > > > 2005/12/5, David O'Brien > <obrien@freebsd.org>: > > > > > > On Sun, Dec 04, 2005 at 06:50:55PM -0400, > Marc G. Fournier wrote: > > > > > > > > I didn't realize that the newer Xeon's > were 64bit ... now, > > > > I've just built perl 5.8.7, and its > reporting: > > > > > > > > # perl -v > > > > This is perl, v5.8.7 built for > i386-freebsd-64int > ... > > > Perl won't be reporting a 64-bit capable > machine, when running a > > > 32-bit OS. Look in /var/run/dmesg for 'AMD > Features' to report > > > 'LM' (long mode). > > > > So why there is a 64int? We can suppose that > perl has seen that > > Marc's proc is a 64 one no? I asked that > cause I got a 64bits > > (amd) which run on a 32 bits mode and I got > oftenly such > > "i386-freebsd-64amd" > > By chance any of you built the Perl w/ > USE_64_BIT_INT option? See > "perl -V". 64 bit integers are a data type and have zippo to do with 64bit mode operations. Of course a 64bit processor can handle a 64bit integer in one operation whereas its more complicated on a 32bit CPU, but the entire point of a compiler or interpretor is to make such things transparent to the user. All the message means is that PERL is compiled to recognize the data type. DT __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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