On Wed, Sep 7, 2016 at 4:20 PM, Vincent Slyngstad <v.slyngstad at frontier.com> wrote: Thanks Vince! Yes, that's definitely it. I've been staring at the somewhat related Tektronix 4013 terminal emulator too, in a couple of parent directories above. I need to do some more investigating to figure out how the driver actually works, but it looks like both programs are very dependent on the store mode of the oscilloscope. Based on what I see, there is no massive buffer that the driver iterates through to keep things refreshed, but I might be missing it. Now I'm working on real VC8E integration into SimH to better tell how these programs work. Anyone want to help? :) Kyle

On Thu, Sep 8, 2016 at 11:59 PM, Pontus Pihlgren <pontus at update.uu.se> wrote: I don't have much yet, unfortunately; still trying to get my thoughts together on how it should be implemented. Mark Pizzolato recommends using as much existing display code as possible. I did start an issue for it here, though: https://github.com/simh/simh/issues/337 Kyle