CS401 Midterm MCQs by VU Topper RM

Q1. Vu-Topper RM (1 marks)

The instruction for permanent diversion in Intel 8088 is ____________. A. Rot B. Mov C. Call

D. Jump Page 56

Q2. Vu-Topper RM (1 marks)

There are ____________ types of address wraparound.

A. 2 Page 29

B. 4 C. 6 D. 8

Q3. Vu-Topper RM (1 marks)

The top of stack is contained in ______ register. A. Bx

B. Sp Page 63

C. Ax D. Bp

Q4. Vu-Topper RM (1 marks)

There are ___________ registers in Intel 8088 that can hold the address of data.

A. 4 Page 22

B. 8 C. 10 D. 12

Q5. Vu-Topper RM (1 marks)

"mov [bp], al" moves the one byte contents of the AL register to the address contained in the BP register in the current ___________. A. Data segment.

B. Stack segment. Page 27

C. Code segment. D. Extra segment.

Q6. Vu-Topper RM (1 marks)

Which of the following is the number of operands for ADC (Add with Carry) instruction?

1. 1
2. 2 Page 48
3. 3
4. 4

Correct answer: 2 Page 48

Q7. Vu-Topper RM (1 marks)

The jump is taken if the last arithmetic operation has changed the sign unexpectedly. A. JZN B. JZ C. JNO

D. JO Page 35

Q8. Vu-Topper RM (1 marks)

Which of the following is shifted right in the 4-bit multiplication algorithm?

1. Multiplicand
2. Multiplier Page 46
3. RCL
4. OLC

Correct answer: Multiplier Page 46

Q9. Vu-Topper RM (1 marks)

Which of the following is an illegal instruction?

1. Mov BX, 10
2. MOV AX, BX Page 22
3. MOV AX, 65
4. MOV AX, [BX+BP]

Correct answer: MOV AX, BX Page 22

Q10. Vu-Topper RM (1 marks)

Extended Shifting Algorithm consists of: A. 4 instructions

B. 2 instructions Page 48

C. 1 instruction D. 5 instructions

Q11. Vu-Topper RM (1 marks)

All the addressing mechanisms in iAPX88 return a number called the _____________ address. A. Faulty B. Direct C. Indirect

D. Effective Page 25

Q12. Vu-Topper RM (1 marks)

Call instruction takes -------- argument(s). A. 0

B. Page 64

C. 2 D. 3

Q13. Vu-Topper RM (1 marks)

With the execution of CALL instruction, the value of _________is decremented by 2.

A. SP Page 66

B. BX C. CX D. DX

Q14. Vu-Topper RM (1 marks)

foreground color?

1. 2 Page 73