Quiz submission record for quiz6-1-1 at Mon Jul 26 08:36:40 2004:

Your Answer for Question 1:
Everything will still be running the same way.

Your Answer for Question 2:
There is one coming from the register, one coming as a result of the ALU, and one coming from Data memory.

Your Answer for Question 3:
The hazard detection unit operates during the ID stage and inserts the stall between the load and its use.  It checks for load instructions with this condition:
if (ID/EX.MemRead and 
     ((ID/EX.RegisterRt = IF/ID.RegisterRs) or
      (ID/EX.RegisterRt = IF/ID.RegisterRt)))

If this condition is met, then the unit stalls the pipleline.

Inserting bubbles repeatedly is avoided because the detection only occurs in the ID stage. 


Your unique submission ID is quiz6-1-1-cs61c-cl-1090856200-1143.