Just by studying this material myself and had to poke to answer this very question (Xcode 3.1.2).
Go to the "Assembly Results" window after starting. It may not open automatically, depending on the configuration. The Build / Build Results menu will open if necessary.
In the middle area between the two panels, you will see 4 buttons on the left. The third icon is only 3-4 horizontal lines. Click to switch the transcript of the assembly. This shows all the assembly steps and the output of NSLog () from the run.
John m
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