I am trying to convert from decimal to a binary. I have written this thus far and it keeps returning 0. why would it do that. I am trying to get it to concatenate the numbers and then return the value. 
#!/usr/bin/perl -w
use strict;
use Term::ReadKey;

my ($inNumber,$signedMag,$bias127,$onesComp,$twosComp);

print "Enter an 8-bit decimal integer: ";
$inNumber = ReadLine 0;
chomp $inNumber;
ReadMode 'normal';
print "\n";

if ($inNumber =~ /^[+-]?\d+$/) {
    print $inNumber ;
    print "\n";
}else{
    warn "not an integer";
}

if ($inNumber > 127 || $inNumber < -127) {
    warn "number is not 8 bit";
    exit;
}

$signedMag = dec2bin($inNumber);
print $signedMag;
print "\n";

sub dec2bin {
    my $binnumb;
    my $binary = $inNumber % 2;
    $inNumber = int($inNumber / 2);
    $binnumb = $binnumb . $binary; 
    if($inNumber > 0) {dec2bin($inNumber);}
    return $binnumb;
}

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In reply to Why does it return 0? by mAineAc

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