A buddy of mine and I realized that if one of us read the code while the other typed, it was much less prone to errors. Once we got it all typed in, we'd switch

A buddy of mine and I realized that if one of us read the code while the other typed, it was much less prone to errors. Once we got it all typed in, we'd switch places when debugging the inevitable typos made. The DATA lines full of nonsensical text (what we now know was hex encoded data) were the go to place for checking for typos.