#! /usr/bin/perl

use strict;
use warnings;

my @nibbles = ();
while (my $line = <>) {
  chomp $line;

  if ($line =~ /^ethernet TX: ([0-9]+)$/) {
    my $nibble =  $1;
    push (@nibbles, $nibble & 0x0F);
  }
}

my @bytes = ();
for (my $i = 0; $i < @nibbles; $i += 2) {
  my $byte = $nibbles[$i + 1] << 4 | $nibbles[$i];
  push (@bytes, $byte);
}

print("unsigned char c_data[] = {\n");
for (my $pos = 0; $pos < @bytes; ) {
  print(" ");
  for (my $i = 0; $i < 8 and $i < @bytes; ++$i, ++$pos) {
    printf(" 0x%02X,", $bytes[$pos]);
  }
  print("\n");
}
print("};\n");