test code syntaxhighlighter

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代码

   
     

    
      
    
       1 
    
      //
    
      priority coder
    
      

    
       2 
    
       
    
      module
    
       priority(w,y,z);

    
       3 
    
       
    
      input
    
       [
    
      3
    
      :
    
      0
    
      ]w;

    
       4 
    
       
    
      output
    
       
    
      reg
    
       [
    
      1
    
      :
    
      0
    
      ]y;

    
       5 
    
       
    
      output
    
       
    
      reg
    
       z;

    
       6 
    
       

    
       7 
    
       
    
      always
    
       @(w)

    
       8 
    
       
    
      begin
    
      

    
       9 
    
       z
    
      =
    
      1
    
      ;

    
      10 
    
       
    
      casex
    
      (w)

    
      11 
    
       
    
      4
    
      '
    
      b1xxx:y=3;
    
      

    
      12 
    
      
    
       
    
      4
    
      '
    
      b01xx:y=2;
    
      

    
      13 
    
      
    
       
    
      4
    
      '
    
      b001x:y=1;
    
      

    
      14 
    
      
    
       
    
      4
    
      '
    
      b0001:y=0;
    
      

    
      15 
    
      
    
       
    
      default
    
      :
    
      begin
    
      

    
      16 
    
       z
    
      =
    
      0
    
      ;

    
      17 
    
       y
    
      =
    
      2
    
      '
    
      bx;
    
      

    
      18 
    
      
    
       
    
      end
    
      

    
      19 
    
       
    
      endcase
    
      

    
      20 
    
       
    
      end
    
      

    
      21 
    
       

    
      22 
    
      
    
      endmodule
    
      

    
      23