note 61478 deleted from language.operators.bitwise by cmb

Note Submitter: Xavier Daull ---- <?php // Extract part of a binary data - due to windows system limitations (and this code), bit extracted length($firstbit to $lastbit included) is limited to 31 bits function sub_bindata($mybindata, $firstbit = 7, $lastbit = 0, $highestbitfirst = true) { // 1. Create a bit mask of the right size by triming left and right // 2. select bits by an AND on $mybindata // 3. shift right to get only length needed if($highestbitfirst) return (((0x7FFFFFFF >> (30+$lastbit-$firstbit))<<($lastbit)) & $mybindata) >> ($lastbit); else return (((0x7FFFFFFF >> (30-$lastbit+$firstbit))<<(30-$lastbit)) & $mybindata) >> (30-$lastbit); } ?>