The following code works for me:

use strict;
use Test::More tests => 3;

sub encode_BCD {
    return pack 'H*', join '', @_
};

is encode_BCD("123456"), "\x12\x34\x56";
is encode_BCD("00",3456),"\x00\x34\x56";
is encode_BCD("1",2),"\x12";

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In reply to Re^3: Encoding BCD by Corion
in thread Encoding BCD by Anonymous Monk

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