Well, I seem to be making some headway. Someone emailed me and told me about a //e emulator for the ARM processor that he'd be willing to give me the source code for. That should do, for a start. Downloaded NTK 1.6.1, which is development software for Newton. Joined the Newton Talk mailgroup and asked for help. I have no idea how long this road I'm going down is, but at least I'm on my way! Ralph Glatt