bigint basically turns every number into an object which acts as a number. Limit the scope of bigint using curlies, or create the objects yourself were needed. 
#!/usr/bin/perl -w
# File displayPipeTracer2.pl

{
   # Only makes objects from numbers in these curlies
   use bigint;

   my $testString = "          00008008 000000FF 00800000";
   $testString =~ s/\s+//g;
   $testString = Math::BigInt->new("0x$testString");

   my $maskResult = $testString & 0x400000000000000000000000;
   print "Mask Result: $maskResult\n";
}

[download]
#!/usr/bin/perl -w
# File displayPipeTracer2.pl

my $testString = "          00008008 000000FF 00800000";
$testString =~ s/\s+//g;
$testString = Math::BigInt->new("0x$testString");

my $mask = Math::BigInt->new('0x400000000000000000000000');

my $maskResult = $testString & $mask;
print "Mask Result: $maskResult\n";

[download]

In reply to Re^3: Bitwise Operator Error by ikegami
in thread Bitwise Operator Error by ravishi

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