Hi Monks, I am writing a perl program to parse a verilog file for case statements. Once this is done, I am checking that all cases have been covered(we don't allow falling into default in our hardware design). But, the way I think is very C like(forgive me), and the code below can take a very long time to execute for large values of current_size, since the for loops are nested. Please help me reduce the execution time of this code. 
for $j (0..((2**$current_size) - 1))
{
  $found = 0;
  @final_values = split(/[\s|\t]+/, $current_case);
  foreach $statement (@final_values) {
      if (bintodec($statement) == $j) {$found = 1;}
  }
  if (!$found){$missed_one = 1;}
}

[download]
current_size is the number of bits, and current_case is a space separated string containing all of the case values in binary format. Thanks in advance for your help!

In reply to Comparison effeciency by flounder

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