CS401-Midterm
1 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
2 / 50
3 / 50
To convert any digit to its ASCII representation
4 / 50
After the execution of SAR instruction:
5 / 50
After the execution of MOVS instruction which of the following registers are updated
6 / 50
JC and JNC test the ____________ flag.
7 / 50
The physical address of the stack is obtained by
8 / 50
The first instruction of “COM” file must be at offset:
9 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
10 / 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
11 / 50
Which mathematical operation is dominant during the execution of SCAS instruction
12 / 50
Which bit of the attributes byte represents the red component of background color ?
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The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
14 / 50
After the execution of STOSW the CX will be
15 / 50
All the addressing mechanisms in iAPX88 return a number called _____________ address.
16 / 50
Regarding assembler, which statement is true:
17 / 50
The basic function of SCAS instruction is to
18 / 50
After the execution of instruction “RET ”
19 / 50
_________ is one of the reasons due to which string instructions are used in 8088
20 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
21 / 50
Which bit of the attributes byte represents the blue component of background color ?
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23 / 50
The iAPX88 processor supports ___________ modes of memory access.
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25 / 50
one DIV instruction has
26 / 50
After execution of JCXZ instruction CX will changed with flag affect.
27 / 50
Which bit of the attributes byte represents the blue component of foreground color
28 / 50
The extended ASCII has
29 / 50
When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
30 / 50
31 / 50
decrements SP (the stack pointer) by two and then transfers a word from the source operand to the top of stack
32 / 50
The iAPX888 architecture consists of _______ register.
33 / 50
assembly the CX register is used normally as a ______________register.
34 / 50
one Only ___________ instructions allow moving data from memory to memory.
35 / 50
one RET is executed, it recovers the values from
36 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
37 / 50
When an item is pushed on the decrementing stack, the top of the stack is
38 / 50
Only instructions allow moving data from memory to memory.
39 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
40 / 50
In 8088 architecture, whenever an element is pushed on the stack
41 / 50
In assembly the CX register is used normally as a ______________register.
42 / 50
The execution of the instruction “mov word [ES: DI], 0x0720”
43 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
44 / 50
which bit sets the character "blinking" on the screen?
45 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
46 / 50
When two 16bit numbers are added the answer can be 17 bits long, this extra bit that won’t fit in the target register is placed in the where it can be used and tested
47 / 50
48 / 50
Stack is a ______ that behaves in a first in last out manner.
49 / 50
To transfer control back the RET instruction take
50 / 50
Your score is
The average score is 64%
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