That looks at lot like the lines 153-162 from here (direct link here): 
153    // read number
154    function readNumber(){
155      $num = fread($this->buffer, 8);
156      $r = "";
157      for($byte = 7 ; $byte >= 0 ; $byte--) { // reverse the bytes
158        $r .= $num[$byte];
159      }
160      $ret = unpack("dnum",$r);
161      return $ret['num'];
162    }

[download]
And I believe that's PHP, not Perl. I'm thankful for the suggestion although still looking for the Perl equivalent of the above.
--
Andreas

In reply to Re^2: Binary to decimal conversion by andreas1234567
in thread Binary to decimal conversion by andreas1234567

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