ArrayIndexOutOfBoundsException: 256

I have the following code:

local mon = peripheral.wrap("top")
local oil = 0
local coke = 0
function redstoneEvent(p1, p2)
if(rs.testBundledInput("right", colors.lightGray)) == true then
coke = coke + 1
end
if(rs.testBundledInput("right", colors.green)) == true then
oil = oil + 1
end
end
repeat
mon.clear()
mon.setCursorPos(1,1)
mon.write("Oil gained:")
mon.write(oil)
mon.setCursorPos(1,2)
mon.write("Coke gained: ")
mon.write(coke)
local event, p1, p2 = os.pullEvent()
if event == "redstone" then
redstoneEvent(p1, p2)
end
until event == "char" and p1 == "x"
mon.clear()
os.shutdown

and receive the following error:

shell:17: vm error: bios:38 vm error:
java.lang.ArrayIndexOutOfBoundsException: 256

any idea why. I'm new to lua but not to programming, any help will be appreciated

Is that the code you used? Cause you shouldn't be able to run it.
Some errors:

local mon = peripheral.wrap("top")
local oil = 0
local coke = 0
function redstoneEvent(p1, p2)
  if(rs.testBundledInput("right", colors.lightGray)) == true then
    coke = coke + 1
  end
  if(rs.testBundledInput("right", colors.green)) == true then
    oil = oil + 1
  end
end
repeat
  mon.clear()
  mon.setCursorPos(1,1)
  mon.write("Oil gained:")
  mon.write(oil) -- not sure if you can use numbers here
  mon.setCursorPos(1,2)
  mon.write("Coke gained: ")
  mon.write(coke) -- same as above
  local event, p1, p2 = os.pullEvent()
  if event == "redstone" then
    redstoneEvent(p1, p2)
  end
until event == "char" and p1 == "x"
mon.clear()
os.shutdown -- missing brackets ()

That error is normally caused by a recursive function that overflows the stack, but there's none here. So, if you can, open the program file (located in .minecraft/saves/<YourWorld>/computer/<Computer ID>) and copy-paste the program here.

Yeah, i figured that it was those variables. No idea how to fix it, but ill keep poking around…

Edit: so I tried changing the code to:

mon.write("Oil gained:"..oil)
mon.setCursorPos(1,2)
mon.write("Coke gained: "..coke)
Due to the code on this
and nothing changed, I got the exact same error…

adwhitenc, on 04 July 2012 - 02:54 AM said:

Yeah, i figured that it was those variables. No idea how to fix it, but ill keep poking around…

Errr… That's not what I said, those variables are fine. There's no way they can cause that error.
Most likely you left something out in the code you posted.

Problem solved, case closed, for whatever reason, my startup script was calling itself instead of the program, thank you for your hel and sorry for wasting your time…