Lab 2 check

Run the focused timer tests before using the timer from a larger program. They verify divisor arithmetic, status reads, interrupt subscription, and tick accounting. Then run a small headless example to confirm behavior in a loop.

lcom-ng test timer
lcom-ng run --headless -- build/examples/timer_int 3

Discussion prompts

• Why does the timer API expose timer_ticks() instead of sleeping directly?
• What changes if the game updates at 60 Hz but the timer fires faster?
• Which timing values should be constants, and which should a final project configure?

External reading

The LCOM chapters on the timer controller, interrupts, and timer libraries are useful companions. For background, read OSDev on the Programmable Interval Timer and interrupts. The GNU C notes on integer types help when divisor arithmetic behaves unexpectedly.