Thanks to everyone who commented and offered up ideas for additional features, all where gratefully received and it's interesting to get varied views on how folks use their test gear. I've made the changes to the IDE to reflect the requests for the hardware to revolve around the CPU It certainly makes more sense to have the memory maps on a per CPU level, I've updated the screenshots page to reflect this if anyone's interested. I've not done anything yet as far as ram bit masks are concerned. I was asked about building in functions similar to those of the Fluke -003 module, I don't have information on this module so if someone has a manual in electronic format I'd be grateful of a copy. Thanks for all the feedback Chris If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo@flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx@yyy.com: (un)subscribe techtoolslist xxx@yyy.com