CS401 Quiz 1 by VU Topper RM

The ________ flag sets if the last mathematical or logical instruction has produced a zero in its destination. A. trap B. sign

C. zero

D. Interrupt

Which type of jump(s) cover the whole memory?

I. Short II. Near III. Far A. I and II B. ll C.

lll

D. l

Shift logical Left (SHL) moves all the bits one position to the ______________ and inserts a zero from the ______________. A. left, left B. left, right

C. Right, left Page 52

D. right, right

Which of these hexadecimal numbers is equal to -40 in 2’s complement?

1. FFDD
2. FFFF
3. FFEE
4. FFD8

Correct answer: FFD8

Physical memory address in Intel 8088 processor is determined by the

A. Data Segment register B. Stack Segment register C. Code Segment register

D. Segment register and offset

Which of following assembly code best matches with the instruction A17528?

1. mov ax 2875
2. mov ax, [7528]
3. mov ax, 7528
4. mov ax, [2875]

Correct answer: mov ax, [7528]

In ____________ operation, a carry flag is inserted from the left moving every bit one position to its right. The right most bit is dropped into the carry flag. A. Rotate Left (ROL) B. Rotate Right (ROR) C. Rotate through Carry Left (RCL)

D. Rotate through Carry Right (RCR) Page 53

Which of following conditional jump is not dependent on any flag?

1. JNG
2. JCXZ
3. JP
4. JPE

Correct answer: JCXZ

Verification of data integrity between sender and receiver is performed by the _____________ flag. A. zero

B. parity

C. sign D. auxiliary carry

Which of the following instructions causes the size mismatch error?

1. mov al, ax
2. mov byte[num1], al
3. mov word[num1], bx
4. mov ax, bx

Correct answer: mov ax, bx

There are ____________ types of address wraparounds. A. 4 B. 2 C. 1 D. 3

What would be the output of MOV AX, BL?

1. The contents of the BL register will be moved to the AX register, and the BL will be set as 0
2. Assembler will declare it as an illegal expression
3. The contents of the AX register will be moved to the BL register
4. The contents of the BL register will be moved to the AX register

Correct answer: The contents of the BL register will be moved to the AX register

In Far jump, the segment address is stored in ________________. A. CS B. ES C. DS D. SS

As a result of base+offset addressing, the address that is generated is called a (an) _____________ address. A. Not B. Elective

C. Additive ok

D. Effective