This makes your work even more interesting. I don't know if you read the original Mail [1] in which Tom Duff shared his Device, but at the end he's mentioning t

This makes your work even more interesting. I don't know if you read the original Mail [1] in which Tom Duff shared his Device, but at the end he's mentioning that he had an idea for something like coroutines: > It amazes me that after 10 years of writing C there are still little corners that I haven't explored fully. (Actually, I have another revolting way to use switches to implement interrupt driven state machines but it's too horrid to go into.) He later replied to Simon Tatham, that his coroutines actually where those "horrid" ideas. Obviously you must had some thoughts similar to those two. Kudos for that. You seem to to have a deep understanding of the concepts that make the C language (and how to twist them) ;). [1]: http://www.lysator.liu.se/c/duffs-device.html http://www.lysator.liu.se/c/duffs-device.html