> Secondly, when we talk of 32/64 bit processor, we are talking about
> the data bus width, right? The same holds when we talk about Operating
> systems, right? So the size of address bus does not matter?
it usually refers to the native size of the cpu ... 64bit processors
work normally on registers that are 64bits in size while 32bit
processors work normally on registers that are 32bits in size
-mike
Yes, it is the data bus width. Size of the address bus does not matter. On i386, they are same by design not by requirement. On x86_64, they are different.
