From: nowhere@never.at   
      
   Rod Pemberton mentioned a Flying Bucket post:   
      
   >> Hello,   
   >>   
   >> I just watched this video, it's pretty interesting and somewhat   
   >> amazing, this guy find a way to find hidden instructions inside   
   >> processors:   
   >>   
   >> [snip]   
      
   > It seems that you multiple posted (or spammed in some cases) this to   
   > about a dozen different groups.  The problem with that is that we won't   
   > see any informative replies regarding x86 instructions from those other   
   > groups, unless we subscribe to them or are actively reading them.   
   > Anyway, my reply is on alt.lang.asm, since I read it there, first,   
   > even though it is suitable for CLAX.   
      
   He just fooled around with improper tools and reported >800 undocumented   
   instructions.. after I interrogated him in ALA he couldn't show me one.   
      
   It's true that final CPU documentations are often some time behind earlier   
   (greedy merchants demanded) release date of new CPUs.   
      
   But so far I could not see any undocumented opcode that does something useful   
   other than NOPs or alias where redundant bits were ignored.   
   (I remember only SALC on x86 decades ago and the famous Z80 2nd page)   
      
   PLease let me know if you find any undefined opcode that doesn't raise an   
   exeption or act as NOP. I'd like to check in detail what they may do.   
   __   
   wolfgang   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)