Date: Fri, 30 Nov 2012 09:40:50 -0500 From: "Thomas Mueller" <mueller23@insightbb.com> To: freebsd-questions@freebsd.org Cc: Ilya Kazakevich <kazakevichilya@gmail.com> Subject: Re: i386 vs amd64 Message-ID: <30.96.29719.275C8B05@smtp01.insight.synacor.com>
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> On Thu, Nov 29, 2012 at 2:57 PM, Bill Tillman <btillman99@yahoo.com> wrote: > > i386 will not see anything above 4 GB > Actually you *can* give access to >4Gb RAM for your system: PAE allows you > to use 36 bits instead of 32 to address your memory (and supported till > Pentium Pro) but that is only for OS (32bit apps would see 4Gb only). > Anyway, I have not seen any troubles with 64bit installations. > Ilya. How does the system know what is OS and what is 32-bit apps? Where would GCC fit in this regard, or Clang for that matter? Tom
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