yes, if the value you need to load into TL is less than, say 245 this will work; however this is what I call a programmer "trap" (use it if you need to catch one). Months or Years later some unsuspecting soul (usually oneself) might "tune" the timer value and not know what hit him. i was looking at this with a load of ANY value and there, of course, there is a problem which does not exist in your example of TL load value = 0.

So OK it will work if the value loaded into TL is not greater than (255 - cycles till TH load).

Erik