CS401 Quiz 1 Set 2 by VU Topper RM

A symbol associated to a point in the program is called a ___________.

A. Label

B. Subroutines C. JUMP D. Stack

In _______________ operation, the carry flag is inserted from the right causing every bit to move one location to its left. The dropped bit from the left goes into the carry flag. A. Rotate through Carry Left (RCL) B. Rotate Right (ROR)

C. Rotate through Carry Right (RCR)

D. Rotate Left (ROL)

Choose the correct default segment associations. A. IP=>BP, SP=>SS and BX=>DS B. CX=>CS, DI=>DS and SI=>SS C. IP=>CS, SP=>SS and BX=>DS

D. IP=>CS, SP=>DS and SI=>SS

The ASCII code for digit 8 is _________. A. 0x80 B. 0x18

C. 0x38

D. 0x28

The main difference between standard and extended ASCII tables is the number of defined ___________. A. serial ports B. rows and columns on VGA C. I/O ports

D. symbols

After the execution of STOSB and STOSW, the CX register will be ______________ by _______________.

A. decremented, 1

B. incremented, 2 C. incremented, 1 D. decremented, 2

In iAPX88, when an element is popped from the stack, SP is ___________________ by 2.

A. incremented

B. divided C. multiplied D. decremented

The symbols in extended ASCII table by IBM fits in one

A.

byte

B. word C. doubleword D. bit

Which of the following is a non-destructive AND operation?

1. CMP
2. ADC
3. NAND
4. TEST ok

Correct answer: TEST ok

ASCII stands for_______. A. American Standard Code for Information Interaction

B. American Standard Code for Information Interchange Google ok

C. American Scientific Communication for Integer Interaction D. American Standard Communication for Integer Interchange

Which of the following is the correct instruction for NOT operation?

1. not byte [var], ax
2. not bx
3. not word [var], ax
4. not ax, bx

Correct answer: not bx

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

C. zero ok

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