 margin:0; padding:0 ">  40:   input  [63:0] message_length,</pre>
<pre style="background-color: #C0C0C0; margin:0; padding:0 ">  41:   output [63:0] sha_message_length</pre>
<pre style="margin:0; padding:0 ">  42: );</pre>
<pre style="margin:0; padding:0 ">  43: </pre>
<pre style="background-color: #C0C0C0; margin:0; padding:0 ">  44:   localparam int unsigned BlockSize = 512;</pre>
<pre style="background-color: #C0C0C0; margin:0; padding:0 ">  45:   localparam int unsigned BlockSizeBits = $clog2(BlockSize