This is one of the first programs I ever wrote, provided here for fun and safekeeping.
I wrote it on the TI-83+, but it should work on any TI Z80 calculator. Here's a shot of it in action:
The board is 9×19, with 33 mines.
- ▲▼◀▶ move cursor
- 2nd reveal square (left click)
- ALPHA flag or unflag mine (right click)
- Y= show # of mines remaining
- OFF exit