CS401 Midterm Online Quiz

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CS401-Midterm

1 / 50

When an item is pushed on the decrementing stack, the top of the stack is

2 / 50

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

3 / 50

After the execution of “PUSH AX” statement

4 / 50

_______ register holds the address of next instruction is to be executed

5 / 50

Only instructions allow moving data from memory to memory.

6 / 50

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

7 / 50

In a video memory, each screen location corresponds to

8 / 50

The physical address of the stack is obtained by

9 / 50

The iAPX888 architecture consists of _______ register.

10 / 50

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

11 / 50

In 8088 architecture, whenever an element is pushed on the stack

12 / 50

The first instruction of “COM” file must be at offset:

13 / 50

ASCII stands for ____________. The screen is two dimensional space having:

14 / 50

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

15 / 50

assembly the CX register is used normally as a ______________register.

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

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

18 / 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

19 / 50

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

20 / 50

While using STOBS, if DF=1 then

21 / 50

8088 is a 16bit processor with its accumulator and all registers of __________.

22 / 50

A 32 Bit processor has accumulator of ---------

23 / 50

One screen location corresponds to a

24 / 50

In the word designated for one screen location, the higher address contains

25 / 50

If we want to divide a signed number by 2, this operation can better be accomplished by

26 / 50

The execution of the instruction “mov word [ES: DI], 0x0720”

27 / 50

After the execution of SAR instruction:

28 / 50

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

29 / 50

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

30 / 50

The instruction ADC has________ Operand(s)

31 / 50

An offset alone is not complete without

32 / 50

The clear screen operation initialize whole block of memory

33 / 50

Regarding assembler, which statement is true:

34 / 50

After the execution of STOSW the CX will be

35 / 50

The second byte in the word designated for screen location holds

36 / 50

JC and JNC test the ____________ flag.

37 / 50

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

38 / 50

The basic function of SCAS instruction is to

39 / 50

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

40 / 50

The physical address of the stack is obtained by

41 / 50

REP will always

42 / 50

RETF will pop the offset in the

43 / 50

Assembly language is:

44 / 50

Which bit of the attributes byte represents the blue component of foreground color

45 / 50

REP will always

46 / 50

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

47 / 50

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

48 / 50

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

49 / 50

After the execution of instruction “RET ”

50 / 50

“Far” jump is not position relative but is _______________

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