The Altirra emulator supports tablet input for this title, though you have to add it manually:
1. Input > Input Mappings...
2. Click Add... call it "Mouse -> Atari Tablet" or similar
3. Click Edit...
4. Add Controller... , choose Tablet (Atari touch tablet), OK
5. Axis 1 -> Edit... , Source : Mouse Pos X (pad)
6. Axis 2 -> Edit... , Source : Mouse Pos Y (pad)
7. You can map Left/Right/Up/Down to the arrow or WASD keys on your keyboard or leave them blank
8. The Stylus button was a button on the pen. It draws when the stylus is DOWN, and toggles the tool screen when stylus is UP.
I mapped the buttons on the pen & tablet as follows:
Stylus button -> Mouse LMB
Left tablet button -> Mouse X1B
Right tablet button -> Mouse X2B
Raise stylus -> Mouse RMB |