Date: Wed, 18 Jan 2006 17:40:00 -0500 From: Anthony Dematteo <adematteo@gmail.com> To: freebsd-questions@FreeBSD.org Subject: 64 Bit Questions Message-ID: <5e236bd10601181440o7f456313gf10d2f5ca30d159c@mail.gmail.com>
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I have a couple questions about the AMD64 Project. 1. They page mentions that there is multiprocessor support. Does this include the dual core processors? Will the OS dispatch processes and threads to each core? 2. While the OS will use the 64 bit mode, will the applications still run in the compatibly mode? Will the applications still only use 32 bits. 3. Also, will the OS take advantage of being 64 bit and load itself into memory higher than the 32 bit addressable mark so that my 32 bit applications can use the lower part? 4. If I enable 64 bit compilation on GCC prior to installing a port, will the port then be 64 bit enabled? 5. If I stall an IDE and write my own applications on a 64 bit machine, can a 32 bit machine still run them? Thank you in advance for your response and time. Anthony DeMatteo
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