[Question] Possible undefined timer behaviour

[vintagepc]

Found while investigating a bootloop with simulated timers. I'm not sure whether this is of concern since it clearly works in practice, but seems like it has the potential for odd problems:

In setup() in Marlin_main.cpp:
line 1010 of ultralcd_init() calls backlight_init() which requests _delay(10) after setting LCD_BL_PIN.

However, timer2 (whose TOIE is used for the delay) is not actually initialized until tp_init() (Line 1241) of the same function.

[leptun]

Maybe the simulated timer has a different initial state than the actual hardware.

[vintagepc]

Probably - though I searched and only found a blanket statement that they are disabled until set up by default.

Thoughts on where I might be able to find the initial state?