CS401 Midterm Online Quiz

0%

CS401-Midterm

1 / 50

If the address of memory location Num1 is 0117 and its content is 0005 then after execution of the instruction “ mov bx, Num1” bx will contain

2 / 50

Left-Shift-Operation the left most bit _______

3 / 50

When a 16 bit number is divided by an 8 bit number, the quotient will be in

4 / 50

To convert any digit to its ASCII representation

5 / 50

Each screen location corresponds to a word, the lower byte of this word contains ____

6 / 50

assembly the CX register is used normally as a ______________register.

7 / 50

When a 16 bit number is divided by an 8 bit number, the dividend will be in

8 / 50

After execution of JCXZ instruction CX will changed with flag affect.

9 / 50

Code Segment is associated to _______ register by default.

10 / 50

After the execution of STOSW the CX will be

11 / 50

To convert any digit to its ASCII representation

12 / 50

In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?

13 / 50

In STOS instruction, the implied source will always be in

14 / 50

While using STOBS, if DF=1 then

15 / 50

An offset alone is not complete without

16 / 50

The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be

17 / 50

MOV instruction transfers a byte or word from which of the following source location.

18 / 50

Only instructions allow moving data from memory to memory.

19 / 50

In assembly the CX register is used normally as a ______________register.

20 / 50

The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be

21 / 50

Which bit of the attributes byte represents the blue component of background color ?

22 / 50

In the instruction “CMP AX,BX” the contents of

23 / 50

After the execution of “PUSH AX” statement

24 / 50

JC and JNC test the ____________ flag.

25 / 50

REP will always

26 / 50

Assembly language is:

27 / 50

Which bit of the attributes byte represents the red component of background color ?

28 / 50

“Far” jump is not position relative but is _______________

29 / 50

Which of the following options contain the set of instructions to open a window to the video memory?

30 / 50

After the execution of SAR instruction:

31 / 50

“mov byte [num1],5” is _______ instruction.

32 / 50

After the execution of REP instruction CX will be decremented then which of the following flags will be affected?

33 / 50

decrements SP (the stack pointer) by two and then transfers a word from the source operand to the top of stack

34 / 50

The physical address of the stack is obtained by

35 / 50

The basic function of SCAS instruction is to

36 / 50

After the execution of “PUSH AX” statement

37 / 50

All the addressing mechanisms in iAPX88 return a number called _____________ address.

38 / 50

All the addressing mechanisms iniAPX88 return a number called ______ address.

39 / 50

If the direction of the processing of a string is from higher addresses towards lower addresses then

40 / 50

The iAPX88 processor supports ___________ modes of memory access.

41 / 50

The physical address of the stack is obtained by

42 / 50

The iAPX888 architecture consists of _______ register.

43 / 50

One screen location corresponds to a

44 / 50

The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be

45 / 50

The second byte in the word designated for screen location holds

46 / 50

Which of the following options contain the set of instructions to open a window to the video memory?

47 / 50

Which is the unidirectional bus ?

Control Bus

(II) Data Bus

(III) Address Bus

48 / 50

REP will always

49 / 50

The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be

50 / 50

The routine that executes in response to an INT instruction is called

Your score is

The average score is 64%

0%

Qunoot e Nazilah
Dua e Hajat
4 Qul
6 Kalma
Dua-e-Akasha
Darood Akbar
Surah Fatiha
Dua-e-Ganj Ul Arsh
Dua-e-Jamilah
Ayat-ul-Kursi