Change variable increment/decrement into mid-loop?

[CuriousOne]

And yes, CNT=1 should be added in the beginning, or absolutely unexpected behavior will be generated (just tested)

[HenrikOlsson]

Regarding negative numbers, as long as both variables are of the same size what you did will work:

Cnt VAR BYTE
Add VAR BYTE

Cnt = 100
Add = -1

Cnt = Cnt + Add   ' Cnt now = 99

But if Cnt was a WORD and Add a BYTE then Cnt woul equal 354.