CS401-Midterm
1 / 50
In the instruction MOV AX, 5 the number of operands are
2 / 50
After the execution of STOSW, the CX will be
3 / 50
In STOS instruction, the implied source will always be in
4 / 50
allow changing specific processor behaviors and are used to play with it.
5 / 50
One screen location corresponds to a
6 / 50
The physical address of the stack is obtained by
7 / 50
8 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
9 / 50
To transfer control back the RET instruction take
10 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
11 / 50
RETF will pop the offset in the
12 / 50
A 32 Bit processor has accumulator of ---------
13 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
14 / 50
In STOSB instruction, when DF is Set, SI is
15 / 50
After execution of JCXZ instruction CX will changed with flag affect.
16 / 50
In the instruction “CMP AX,BX” the contents of
17 / 50
Which mathematical operation is dominant during the execution of SCAS instruction
18 / 50
one RET is executed, it recovers the values from
19 / 50
ASCII stands for ____________. The screen is two dimensional space having:
20 / 50
The basic function of SCAS instruction is to
21 / 50
In assembly the CX register is used normally as a ______________register.
22 / 50
The iAPX88 processor supports ___________ modes of memory access.
23 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen, color of the character will be
24 / 50
Which bit of the attributes byte represents the blue component of background color ?
25 / 50
Each screen location corresponds to a word, the lower byte of this word contains ____
26 / 50
“Far” jump is not position relative but is _______________
27 / 50
The instruction ADC has________ Operand(s)
28 / 50
29 / 50
To convert any digit to its ASCII representation
30 / 50
After the execution of “PUSH AX” statement
31 / 50
one Only ___________ instructions allow moving data from memory to memory.
32 / 50
The first instruction of “COM” file must be at offset:
33 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
34 / 50
After the execution of instruction “RET 2”
35 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
36 / 50
All the addressing mechanisms in iAPX88 return a number called _____________ address.
37 / 50
The iAPX888 architecture consists of _______ register.
38 / 50
The second byte in the word designated for one screen location holds
39 / 50
After the execution of SAR instruction:
40 / 50
The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
41 / 50
42 / 50
Which bit of the attributes byte represents the red component of background color ?
43 / 50
one DIV instruction has
44 / 50
which bit sets the character "blinking" on the screen?
45 / 50
In the Rotate Right Operation every bit moves one position to right and the bit dropped from the right is inserted at the left and:
46 / 50
47 / 50
MOV instruction transfers a byte or word from which of the following source location.
48 / 50
49 / 50
50 / 50
After the execution of STOSW the CX will be
Your score is
The average score is 64%
Restart quiz
