Poll: Do you want the internal simulator back?

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Not really the best testing is it though?

With the right code in HDL (in, say, a video testing package) you can get this going in less than 5 mins, with any video standard.

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You are correct, with a full video frame, or, working with an actual graphics, the built in simulator is useless. I was not trying to get the simulator to process an actual image. However, it was just what I needed to solve the occasional loss of a pixel on the right hand side of a dynamically programmable window in my GPU.