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I am a perl newbie,
Can I simply use 64-bit arithmetic in Perl?
For example
$operand1 = 0xFFFFFFFFFFFF; # 48 bit value
$operand2 = 0xFFFFFFFFFFFF; # 48 bit value
$Result = $operand1 * $operand2;
Yes, however you need to have Perl compiled with 64-bit support.