Thanks for sharing this. This is what Eugene Jarvis did to make Defender fast. It was a common tool in the toolbox for any clever game programmer for the 6809.

Thanks for sharing this. This is what Eugene Jarvis did to make Defender fast. It was a common tool in the toolbox for any clever game programmer for the 6809. I think it is awesome that Tom & buddy to experience the pleasure of its rediscovery.