Quiz submission record for quiz6-2-2 at Thu Jul 29 01:06:56 2004:

Your Answer for Question 1:
EPC holds the address of the offending instruction.
The Cause register holds the reason for the exception. 
The instructions are lwc0, mfc0, mtc0, swc0

Your Answer for Question 2:
Imprecision excetion means that the pipelined computers do not specify strictly the correct exception with the correct instruction. 

Your Answer for Question 3:
The drawback is that polling can waste a lot of processor time since processors run faster than I/O devices

Your Answer for Question 4:
It means that when spim is running, it reads the characters that the user types and writes the character on the terminal.

       li $t0 0xffff0004
Loop:  lw $t1 0($t0)
       bneq $t1 $0 EXIT
       addi $t0 $t0 4
       j Loop
EXIT:  mov $v0 $t1


Your unique submission ID is quiz6-2-2-cs61c-en-1091088416-1678.