[fbsd_questions] i386 vs amd64, on intel_64

[David Brodbeck]

On Mon, Oct 4, 2010 at 12:51 PM, spellberg_robert <emailrob at emailrob.com> wrote:
>  q:    if i install an "amd64" version on an "intel_64" platform,
>          am i restricted to 16 64_bit registers and 48_bit pointers or
>          can i compile for both cpu_models
>          [ perhaps, with nothing more complicated than a compiler option ] ?

Take a look at gcc's -m32 and -m64 options.