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   Message 130,563 of 131,241   
   MitchAlsup to All   
   Re: trap and emulate, Lessons from the A   
   18 Dec 25 21:17:28   
   
   From: user5857@newsgrouper.org.invalid   
      
   Lawrence =?iso-8859-13?q?D=FFOliveiro?=  posted:   
      
   > On Wed, 17 Dec 2025 19:55:38 GMT, MitchAlsup wrote:   
   >   
   > > Lawrence =?iso-8859-13?q?D=FFOliveiro?=  posted:   
   > >   
   > >> On Wed, 17 Dec 2025 00:51:17 -0600, BGB wrote:   
   > >>   
   > >>> Misaligned access is common enough here that, if it were not   
   > >>> supported natively, this would likely tank performance...   
   > >>   
   > >> Still there are/were some architectures that refused to support it.   
   > >   
   > > There are smart fools everywhere.   
   >   
   > No doubt another lesson learned from instruction traces: misaligned   
   > accesses occurred so rarely, it made sense to simplify the hardware by   
   > leaving them out.   
   >   
   > The same conclusion was drawn about integer multiplication and   
   > division in those early days, wasn’t it.   
      
   My RISC 1st gen processor had 3-cycle integer multiply, and 35-cycle   
   division.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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