en marginX -= 1\n    if v0 == 9 then marginX += 1\n    if v0 == 6 then selectedtext += 1\n    vF := 3\n    selectedtext &= vF\n    if selectedFont != 0 begin\n      if v0 == 2 then selectedFont -= 1\n    end\n    if selectedFont != 5 begin\n      if v0 == 3 then selectedFont += 1\n    end\n    if v0 == 4 begin\n      vF := 1\n      wrap ^= vF\n    end\n    if v0 == 1 begin\n      vF := 1\n      showGrid ^= vF\n    end\n  again\n\n: strings\n  :pointer test-string-1\n  :pointer test-string-2\n  :pointer test