Change variable increment/decrement into mid-loop?

[HenrikOlsson]

Something like this perhaps?

Cnt VAR BYTE
Dir VAR BIT

UP CON 1
DOWN CON 0

SomeLoop:
  ' Monitor keypress
  ' Update Display
  ' etc

  IF Dir = UP THEN
    Cnt = Cnt + 1
  ELSE
    Cnt = Cnt - 1
  ENDIF

  IF (Cnt = 100) OR (Cnt = 0) THEN
    Dir = ~Dir    ' Invert direction
  ENDIF

  Goto SomeLoop