Quiz submission record for quiz6-2-2 at Thu Jul 29 00:29:20 2004:

Your Answer for Question 1:
The EPC register holds the address of the offending instruction.
The Cause register holds a field that indicates the reason for the exception.
MIPS instructions access EPC and Cause: lw, sw, 0(R-type), j, beq.

Your Answer for Question 2:
Imprecise exceptions are the machines that have the difficulty of always associating the correct exception with the correct instruction in pipelined computers.

Your Answer for Question 3:
The principal drawback of polling is htat it can waste a lot of processor time because processors are so much faster than I/O devices.

Your Answer for Question 4:
Memory-mapped io means that each register appears as a special memory location.


Your unique submission ID is quiz6-2-2-cs61c-co-1091086160-1883.