stopwatch features on calculators

[dbbotkin]

Here's what SwissMicro has in the DM42 manual:

"RefLCD"
The purpose of programs can vary significantly. There are programs like a stopwatch or games, where quick refreshing of the LCD is required. On the other end of the spectrum are pure computational programs, where no LCD output is required throughout program execution and where it is more beneficial to utilize all the CPU time for computation rather than wasting it on unnecessary LCD updates. The "RefLCD" virtual variable was introduced specifically to address those different requirements. It is possible to disable LCD refreshing altogether or to enable the periodic refresh of individual portions of the LCD.

So why would they make provisions for timing-based programs in the management of the LCD if they were not at least considering adding timing capabilities to the DM42 OS?

Anyone know?