Unfortunately, this is alot easier.
First of all, you could use some loop starting with multiplying a variable by 2, like this:
my $bit = 256;
for (1..8) {
$bit /= 2;
print $dec & $bit;
}
Secondly, you can just use pack and unpack instead:
print unpack ("B8", (pack "c",$dec));
Explanation: pack the number as a signed char value (0..255) in a byse sequence and unpack as 8 bits.
Sorry if my advice was wrong.
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