The following memory with its content is given, assume R8 contains 5. a. What is
ID: 674171 • Letter: T
Question
The following memory with its content is given, assume R8 contains 5.
a. What is the contains of R10 after execution of the following instruction
LW R10, 0x02(R8) ; RX<---- MEM[ Ry + offset]
b. If the load instruction uses indirect addressing, what is the content of R10?
LW R10, @R8
Memory
Address Content
0 09
1 00
2 08
3 02
4 03
5 08
6 0A
7 1A
8 06
9 09
A 0F
B 2B
C 1C
D 14
E 23
F 45
Explanation / Answer
Answer:
a. Content of R10 after execution of instruction LW R10, 0x02(R8) :
given R8 contains 5, then
R10<---- MEM[ 0x02 + 5]
<---- MEM[0x07]
Ans: R10 <---- 1A
b. content of R10 after LW R10, @R8 :
given R8 contains 5, then
R10 <---- MEM[ R8 ]
<---- MEM[0x05]
Ans: R10 <---- 08
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