Answer from cs61c-ax (Amanda Alfonso 15906918) for Question 4
The undefined results would be because the #10 is omitted.  That is, there is no delay between when the two clauses in the "begin" section will run, thus there may be overlap.  More specifically, each clause needs to run uninterrupted in order to see if it produces accurate results.  Thus, if the first clause is running and the second one begins before the first is finished, it will change the values in the registers and possibly skewer the results of the first clause.