Originally Posted by seanriddle
I also picked up some TI calcs: TI-57 LCD, TI-55 and "The MBA". I'm not sure how similar the TI-57 LCD code is to the TI-57 (there could be some differences because the LCD calc has constant memory), but the TI-55 and The MBA use the same chip as the TI-57.

The lcd shares memory between the registers and the program steps. That should make the program quite different...