How do I know if...

[Robert Cates <robert@kormar.de>]

Hi,

I have not yet successfully installed an AMD64 port (tried several 
times, but keep getting a kernel panic for some reason), but when I do, 
I'd like to know and be sure that I'm using 64-bit mode, and not 32-bit 
mode.  How can I check this to make sure I'm running the AMD64 port 
installation in 64-bit mode?

Thanks much!
Robert