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   comp.arch      Apparently more than just beeps & boops      131,241 messages   

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   Message 129,718 of 131,241   
   MitchAlsup to All   
   Re: CISCs, uOps, and books   
   19 Sep 25 16:14:53   
   
   From: user5857@newsgrouper.org.invalid   
      
   anton@mips.complang.tuwien.ac.at (Anton Ertl) posted:   
      
   > EricP  writes:   
   > >Anton Ertl wrote:   
   > >> Thomas Koenig  writes:   
   > >>> BGB  schrieb:   
   -------------------------------   
   >   
   > Yes, so much is clear.  It's not clear where Macro-Ops are in play and   
   > where Micro-Ops are in play.  Over time I get the impression that the   
   > macro-ops are the main thing running through the OoO engine, and   
   > Micro-Ops are only used in specific places, but it's completely   
   > unclear to me where.  E.g., if they let an RMW Macro-Op run through   
   > the OoO engine, it would first go to the LSU for the address   
   > generation, translation and load, then to the ALU for the   
   > modification, then to the LSU for the store, and then to the ROB.   
   > Where in this whole process is a Micro-Op actually stored?   
      
   In the reservation station.   
      
   >   
   > - anton   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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