CS401-Midterm
1 / 50
assembly the CX register is used normally as a ______________register.
2 / 50
When an item is pushed on the decrementing stack, the top of the stack is
3 / 50
When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
4 / 50
An offset alone is not complete without
5 / 50
The prevalent convention in most high level languages is stack clearing by the
6 / 50
In a video memory, each screen location corresponds to
7 / 50
JC and JNC test the ____________ flag.
8 / 50
Only instructions allow moving data from memory to memory.
9 / 50
REP will always
10 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
11 / 50
Assembly language is:
12 / 50
In the word designated for one screen location, the higher address contains
13 / 50
After the execution of SAR instruction:
14 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
15 / 50
In assembly the CX register is used normally as a ______________register.
16 / 50
After the execution of MOVS instruction which of the following registers are updated
17 / 50
While using STOBS, if DF=1 then
18 / 50
The extended ASCII has
19 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
20 / 50
The routine that executes in response to an INT instruction is called
21 / 50
one Only ___________ instructions allow moving data from memory to memory.
22 / 50
All the addressing mechanisms in iAPX88 return a number called _____________ address.
23 / 50
Which bit of the attributes byte represents the red component of background color ?
24 / 50
The clear screen operation initialize whole block of memory
25 / 50
26 / 50
allow changing specific processor behaviors and are used to play with it.
27 / 50
RETF will pop the offset in the
28 / 50
The basic function of SCAS instruction is to
29 / 50
_________ is one of the reasons due to which string instructions are used in 8088
30 / 50
31 / 50
“mov byte [num1],5” is _______ instruction.
32 / 50
| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
33 / 50
After the execution of STOSW, the CX will be
34 / 50
To convert any digit to its ASCII representation
35 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
36 / 50
Each screen location corresponds to a word, the lower byte of this word contains ____
37 / 50
The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
38 / 50
_______ register holds the address of next instruction is to be executed
39 / 50
40 / 50
The physical address of the stack is obtained by
41 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
42 / 50
43 / 50
To transfer control back the RET instruction take
44 / 50
In STOS instruction, the implied source will always be in
45 / 50
46 / 50
Which bit of the attributes byte represents the blue component of background color ?
47 / 50
48 / 50
Which is the unidirectional bus ?
Control Bus
(II) Data Bus
(III) Address Bus
49 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
50 / 50
Your score is
The average score is 64%
Restart quiz
