From: arne@vajhoej.dk   
      
   On 9/21/2025 5:56 AM, John Dallman wrote:   
   > In article <68cf5518$0$718$14726298@news.sunsite.dk>, arne@vajhoej.dk   
   > (Arne Vajhøj) wrote:   
   >>> Correction:   
   >>>   >50 bytes long   
   >> But it is possible to make a 100 byte instruction.   
   >>   
   >> If reusing jump destinations I guess it would be possible   
   >> to create a 32 KB instruction.   
   >   
   > Ouch!   
   >   
   > Register masks are another thing that make fast implementation difficult.   
      
   The memory access in calls/callg and ret was a problem.   
      
   I once read somewhere that those accounted for 25% of time   
   spent in some programs.   
      
   Arne   
      
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