The raw shell uses little memory to work with components. Basically, you can make the shell as big or as small as you want by adding or taking away components. The 89 uses a different processor than the rest of the TI-8x's thus a port to 89 would be a pain. I came up with the idea of TI-Basic program descriptions. Mosaic Shell Philip CLEM told me he will be releasing Maze3d very soon.
Beta is on ticalc.org right now.
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