Messages in this thread | | | Date | Wed, 3 Mar 2004 18:34:11 +0100 | From | Pavel Machek <> | Subject | Re: Intel vs AMD64 |
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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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