[continued from previous message]   
      
      ADD: Large immediate heavy.   
        SUB: Can reduce to ADD in the immediate case.   
      AND: Preferable to have signed immediate values;   
        Not common enough to justify the ImmU/ImmN scheme.   
      OR: Almost exclusively positive;   
      XOR: Almost exclusively positive.   
      
   Load/Store displacements are very lopsided in the positive direction.   
      Disp10s slightly beats Disp10u though.   
        More negative displacements than 512..1023.   
      XG1 had sorta hacked around it by:   
        Disp9u, Disp5n   
        Disp10u, Disp6n was considered, but didn't go that way.   
          Disp10s was at least, "slightly less ugly",   
            Even if Disp10u+Disp6n would have arguably been better   
            for code density.   
      
   Or, cough, someone could maybe do signed load/store displacements like:   
      000..110: Positive   
      111: Negative   
   So, Disp10as is 0..1791, -256..-1   
   Would better fit the statistical distribution, but... Errm...   
      
      
   ...   
      
      
   > John Savard   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)