Re: What exactly do 32-bit x86 exceptions push on the stack in the CS slot?

[H. Peter Anvin]

On 11/20/16 20:54, hpa@xxxxxxxxx wrote:
> 
> I believe i686+ writes zero, older CPUs leave unchanged.
> 

I should point out that, at least from my memory, the same applies to
instructions like "movl <seg>".  I can't even remember for sure how the
behavior differs between "movl <seg>,<reg32>" and "movl <seg>,<mem>";
I'd have to do some digging.

	-hpa