BitBuddy -- no overflow error.

I'd been working a lot with 32bits data register bitfields lately. To aid the job, this utility is built. During coding, i'd troubled by the overflow problem. with helps from friends on the net, the problem is SOLVED. My thanks to ameba, GivenRandy, PaulHews and others from www.experts-exchange.com, and also Twister of Twisted Media (author of BaseConverter -- can be dl from www.planetsourcecode.com) for the HexToDec routine. ** update : handle error 340 (occur when user input value larger than 32bits) **