UNIT-III
1. The arithmetic micro operation denoting negation is
a. R3←R1+R2
b. R3←R1+R2
c. R2← +1
d. R1←R1+1
2. The arithmetic micro operation R2← +1 denotes
a. The sum of R1 and R2 transferred to R3
b. 1's complement of R2
c. 2's complement of R2
d. Increment of R2
3. The arithmetic micro operation denoting subtraction of R3 from R1 is
a. R3←R1+R2
b. R1←R1+ +1
c. R2← +1
d. R3← +R3+1
4. The arithmetic micro operation denoting 2's complement is
a. R1←R1+1
b. R1←R1-1
c. R1← +1
d. R1←-1
5. The arithmetic micro operation denotes
a. The sum of R1 and R2 is transferred to R3
b. The difference of R1 and R2 is transferred to R3
c. Complements the content of R2
d. Increment the content of R1 by one
6. On executing the arithmetic micro operation R2←
a. The sum of R1 and R2 is transferred to R3
b. The difference of R1 and R2 is transferred to R3
c. Content of R2 is Complemented
d. Content of R1 is incremented by one
7. The arithmetic micro operation denoting decrementing the content of R1 by one is
a. R1←R1+1
b. R1←R1-1
c. R1← +1
d. R1←0
8. The logic micro operation used to selectively set bits is
a. F←
b. F ← B ⊕A
c. F←A -B
d. F ← B∩B
9. The logic micro operation used to selectively clear bits is
a. F←
b. F←B∪A
c. F←A⊕ B
d. F←A ∩B
10. The logic Micro operation that denotes clear is
a. F←A ∩ B
b. F←A-B
c. F←A
d. F←0
11. The logic micro operation that denotes AND is
a. F←A ∩ B
b. F←
c. F←A- B
d. F
12. The logic micro operation that denotes transfer A is
a. F←
b. F←A∩A
c. F←A-A
d. F←A
13. The logic micro operation that denotes exclusive NOR is
a. F-A,B
b. F←A∩B
c. F←A-B
d. F
14. The logic micro operation that denotes complement of B is
a. F←
b. F←B∩A
c. F←B-B
d. F←B∩B
15. The category of micro operation used for serial transfer of data is
a. Arithmetic micro operation
b. logical micro operation
c. shift micro operation
d. Register Transfer micro operation.
16. The function denoted by arithmetic operation F=A+ is
a. Subtraction
b. subtraction with borrow
c. 2's complement
d. 1's complement
17. The shift micro operation used to multiply signed binary number by 2 is
a. Shift left
b. Circuit shift left
c. Arithmetic shift left
d. Arithmetic shift right
18. The shift micro operation used to divide signed binary number by 2 is
a. Shift left
b. Circuit shift left
c. Arithmetic shift left
d. Arithmetic shift right
19. The function denoted by arithmetic operation F=A+B+1 is
a. Addition
b. 2s complement
c. Add with carry
d. increment
20. If the content of 8 bit register R1 is 11010011 . The content of register R1 after
execution
of R1←shr R1 micro operation is
a. 01101001
b. 11101001
c. 10100110
d. 10100111
21. If the content of 8 bit register R1 is 11010011. The content of register R1 after
execution
of R1←shl R1 micro operation is
a. 01101001
b. 11101001
c. 10100110
d. 10100111
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