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Re: PATCH: Check rex_ignored
On Mon, Nov 16, 2009 at 1:07 AM, Jan Beulich <JBeulich@novell.com> wrote:
>>>> "H.J. Lu" <email@example.com> 14.11.09 00:14 >>>
>>For VEX insn, REX prefix will be ignored. I checked in this patch to
> Intel® Advanced Vector Extensions Programming Reference (rev 006)
> section 4.1.3 says "Any VEX-encoded instruction with a REX prefix
> proceeding VEX will #UD", and I'd think the disassembler should express
There are so many "#UD". I don't think the disassembler should do it.
> (Btw., would it be possible for you doc folks to include revision histories
> in documents like this? It's rather hard to see what changed from e.g.
> the previous rev of that doc.)
If you take a look at "Order Number: 253666-031US" on the first page of
SDM, "031" is the revision.