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pack doesn't support this directly. This will do the job, though it can probably be made significantly more efficient:

sub toComp3{ my $num = shift; my @digits = split'',abs $num; unshift @digits, 0 unless @digits & 1; push @digits, $num < 0 ? 13: 12; my $comp3 = ''; $comp3 .= chr( shift( @digits ) * 16 + shift( @dig +its ) ) while @digits; return $comp3 } print unpack 'H*', toComp3( 240 );; 240c

It also doesn't cover unsigned numbers. Though a flag to indicate signed-ness could be added.

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In reply to Re: Pack decimal possibility by BrowserUk
in thread Pack decimal possibility by mikeward61

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