1. How many cycles does it take to execute this code?

2. Re-order the code to reduce stalls. Now, how many cycles does it take to execute this code? (Hint: You can remove additional stalls by changing the offset on the fsd instruction.)

3. When an instruction in a later iteration of a loop depends upon a data value produced in an earlier iteration of the same loop, we say that there is a loop-carried dependence between iterations of the loop. Identify the loopcarried dependences in the above code. Identify the dependent program variable and assembly-level registers. You can ignore the loop induction variable j.