Assume memory location 0x4000 holds instruction add $s2, $t7, $s1
Q1. As it is processed, enter the values (if any) in each of the numbered areas (1-6) below.
Enter X for any entry that has no value. Do not leave it blank.
1.
2.
3.
4.
5.
6.
Q2. Is the ALU used for this instruction? Yes or No
Q3. Is the Data Memory used for this instruction? Yes or No
Q4. The Write data for the Registers is (enter a letter A-E):
A) Not used
B) Returned from the ALU, bypassing Data Memory
C) Returned after sending results of the ALU through Data Memory
D) Returned from Data Memory, but bypassing the ALU
E) None of the above
Q5. The Data memory (enter a letter A-E): :
A) does not use the Address, Write data or Read data at all
B) uses the Address and Read data, but not the Write data
C) uses the Address and Write data but not the Read Data
D) uses the Read data but not the Address or Write data
E) none of the above
