Let's Make Robots!

Setting up an interrupt properly

For school this year we are making picaxe 08m robots and have a sheet of funtions we need to fill out. This one is attempting to seek shade It needs more work but right now i just need help with the interrupt code,  I have this code here

symbol light = pin3
symbol movment = w0
setint %00100000,%00100000

if light = 0 then low 1
if light = 0 then gosub find
if light = 1 then high 1 low 2 low 4
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