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Instruction step
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<p>An instruction step is a method of executing a <a href="/facts/Computer_program/e38jH9N9">computer program</a> one step at a time to determine how it is functioning. This might be to determine if the correct <a href="/facts/Program_flow/2XTDfErC">program flow</a> is being followed in the program during the execution or to see if <a href="/facts/Variable_(programming)/VoCKtwml">variables</a> are set to their correct values after a single step has completed. </p>