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Re: [Xen-devel] [PATCH] x86_emulate adjustments
| To: | Jan Beulich <jbeulich@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] x86_emulate adjustments |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Fri, 05 Jan 2007 15:04:53 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 05 Jan 2007 07:05:08 -0800 |
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| Thread-topic: | [Xen-devel] [PATCH] x86_emulate adjustments |
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On 5/1/07 14:50, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > Okay, I view this differently - if CPUs always behaved a certain way (i.e. > REPNE > and REPE being interchangeable as long as the instruction doesn't involve a > comparison) or if behavior is clearly defined (REX followed by non-REX prefix, > where the REX then simply has no effect), the decoder should behave as real > hardware would. Okay, I didn't realise the latter was defined behaviour but it does indeed appear to be. And the REPE/REPNE thing makes sense. Thanks, Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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