Re: Re: Binary math

--- Knightking <Knightking@smempire.org> wrote: > On Thu, 10 Jun 2004 20:08:08 -0700, Justin Patrin > <papercrane@reversefold.com> wrote: > > > Mark wrote: > > > >> [snip] > > > > I'm not sure what's wrong with the code you have, but for the > 4-digit > > one you have: > > > > $packed = 4-bit var with ABCD encoded in it > > > > $a = $packed & 1; > > $b = $packed & 2; > > $c = $packed & 4; > > $d = $packed & 8; > > > Just as a side tip, I highly recommend using hexadecimal for > bitwise > functions where possible, i.e.: > $a = $packed & 0x1; > $b = $packed & 0x2; > $c = $packed & 0x4; > $d = $packed & 0x8; > $e = $packed & 0x10; > $f = $packed & 0x20; > $g = $packed & 0x40; > $h = $packed & 0x80; > $i = $packed & 0x100; Thanks guys. I never really used bitwise operators, but I knew they'd come in handy one day. Thanks for the tips. Now I just need to get this monster working. Mark > > Using M2, Opera's revolutionary e-mail client: > http://www.opera.com/m2/ > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > ===== Mark Weinstock mark_weinstock@yahoo.com *************************************** You can't demand something as a "right" unless you are willing to fight to death to defend everyone else's right to the same thing. *************************************** __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/