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SubjectRe: What exactly do 32-bit x86 exceptions push on the stack in the CS slot?
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On 11/20/16 20:54, hpa@zytor.com 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

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