What are the final specs for the DM42?

[revwillie]

that spllt screen was not as useful as it might appear. I believe it was used more for troubleshooting early on when visual redundancy had more of a purpose.

You will still see a similar effect though when using agraph or pixel. graphics plotted in the original HP 42 resolution appear in the top of the screen and the stack (depending on how you display the stack) appears below the graphics.