[Code-Crunchers] Did You Know

[Peter Ferrie]

Old news. :-)  It has existed since at least the Pentium 3.
See here:
http://www.symantec.com/enterprise/security_response/weblog/2007/02/x86_fetchdecode_anomalies.html <http://www.symantec.com/enterprise/security_response/weblog/2007/02/x86_fetchdecode_anomalies.html> 
I talk about it at the end.
 
 

________________________________

From: Gil Dabah [mailto:arkon at ragestorm.net]
Sent: Wed 6/27/2007 11:32 PM
To: code-crunchers at whitestar.linuxbox.org
Subject: [Code-Crunchers] Did You Know



That new processors support a real multi-byte NOP instructions?
It seems that it's documented in Intel's manual, but not in AMD's. But
people say it works for AMD's as well.
I wrote about it some more here: http://ragestorm.net/blogs/

Have fun
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