Re: Intel vs AMD64

[Pavel Machek]

Hi!

> >Yes, "implementation specific" is one of the differences between 
> >IA-32e
> >and AMD64, i.e. that behavior is architecturally defined on AMD64, 
> >but
> >on IA-32e (as I posted): 
> >  Near branch with 66H prefix:
> >    As documented in PRM the behavior is implementation specific and
> >should 
> >    avoid using 66H prefix on near branches.
> 
> 
> In other words, Intel's implementation deviates from the architecture 
> as defined by AMD.  So it's not 100% compatible.  I just want this 
> point to be clear.
> 
> 
> If these sorts of branches are common enough (and I suspect they 
> are), then this sort of deviation could have a notable code-size (and 

They are not.
-- 
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms         

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