1. What is the value in the AL register after each shift or rotate instruction?

Question

1. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
mov al, 0D4h
shr al,1

A. AL=0100 0000
B. AL=0110 1010
C. AL=1110 1010
D. AL= 0000 1101

2. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
mov al, 0D4h
sar al,1

A. AL=1010 0000
B. AL=0110 1010
C. AL= 0000 1101
D. AL=1110 1010

3. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
mov al, 0D4h
sal al,1

A. AL= 0100 0000
B. AL= 1101 0000
C. AL=0100 1101
D. AL= 0000 1101

4. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
mov al ,0D4h
rol al,1

A. AL=1101 0100
B. AL= 0110 1010
C. AL= 1010 1001
D. AL= 0101 0011

5. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
mov al ,0D4h
ror al,3

A. AL=0011 0101
B. AL=0110 1010
C. AL=1010 0110
D. AL=1001 1010

6. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
mov al ,0D4h
ror al,7

A. AL=0110 1001
B. AL= 1101 0010
C. AL=0011 0101
D. AL=0001 1010

7. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
stc
mov al, 0d4h
rcl al, 1

A. Al=1010 1001 CF=0
B. Al= 1010 1001 CF=1
C. Al=1101 0100 CF=0
D. AL= 1010 0100 CF=1

8. What is the value in the AL register after each shift or rotate instruction?
D4h=1101 0100
stc
mov al, 0D4h
rcr al, 3

A. AL= 1101 0100 CF=1
B. Al= 1110 0110 CF=0
C. AL=0111 0101 CF=0
D. AL= 0011 1010 CF=1

Explanation / Answer

Dear, 1. B. AL=0110 1010

2. D. AL=1110 1010

3.None of the above options AL=10101000 4. C. AL= 1010 1001

5. D. AL=1001 1010


7. B. Al= 1010 1001 CF=1

8. C. AL=0111 0101 CF=0



Hope this will help you

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