Ok. So I've been trying to create a timer for the ti-83+ that works without an internal clock, asm program, or any outside help. The only problems so far are:
a. The timer runs at different speeds for different levels of ram open
b. The timer counts on math to run, so while it's running it's not very accurate (it was at one point accurate to +- .25 seconds per minute). If I improve the algorithm, it changes the time it takes to run through one iteration of the loop, and the algorithm is actually worse. AHHHHHH!
Would it be ok to give a "suggested ram used" number for running, and use approximations during the loop then display the near exact time after the loop? Because this is starting to heart my head.