>  58:     assign masked_req = mask & req_i;</pre>
<pre style="background-color: #C0C0C0; margin:0; padding:0 ">  59:     assign arb_req = (|masked_req) ? masked_req : req_i;</pre>
<pre style="margin:0; padding:0 ">  60: </pre>
<pre style="margin:0; padding:0 ">  61:     // PPC</pre>
<pre style="margin:0; padding:0 ">  62:     //   Even below code looks O(n) but DC optimizes it to O(log(N))</pre>
<pre style="margin:0; padding:0 ">  63:     //   Using Parallel Prefix Computation</pre>
<pre style="background-