$dataIn[20] = pack "C", $var & 0xFF;
$dataIn[21] = pack "C", $var >> 8;

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But those aren't really bytes, as Perl doesn't have 'bytes' as a native type. Instead, you get strings, each representing a byte.

In reply to Re: How to store a bigger number in 1 byte by Anonymous Monk
in thread How to store a bigger number in 1 byte by Arbariya

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