CS401-Midterm
1 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
2 / 50
RETF will pop the offset in the
3 / 50
Which bit of the attributes byte represents the red component of background color ?
4 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
5 / 50
In a video memory, each screen location corresponds to
6 / 50
After the execution of “PUSH AX” statement
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The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen, color of the character will be
8 / 50
After execution of JCXZ instruction CX will changed with flag affect.
9 / 50
Which bit of the attributes byte represents the blue component of foreground color
10 / 50
The clear screen operation initialize whole block of memory
11 / 50
After the execution of STOSW, the CX will be
12 / 50
The execution of the instruction “mov word [ES: DI], 0x0720”
13 / 50
REP will always
14 / 50
Assembly language is:
15 / 50
The physical address of the stack is obtained by
16 / 50
While using STOBS, if DF=1 then
17 / 50
The routine that executes in response to an INT instruction is called
18 / 50
decrements SP (the stack pointer) by two and then transfers a word from the source operand to the top of stack
19 / 50
20 / 50
“mov byte [num1], 5” is _________ instruction.
21 / 50
When a very large number is divided by very small number so that the quotient is larger than the space provided, this is called
22 / 50
To transfer control back the RET instruction take
23 / 50
“Far” jump is not position relative but is _______________
24 / 50
When a 32 bit number is divided by a 16 bit number, the quotient is of
25 / 50
which bit sets the character "blinking" on the screen?
26 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
27 / 50
28 / 50
one DIV instruction has
29 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
30 / 50
The iAPX88 processor supports ___________ modes of memory access.
31 / 50
In STOS instruction, the implied source will always be in
32 / 50
_______ register holds the address of next instruction is to be executed
33 / 50
The second byte in the word designated for screen location holds
34 / 50
In assembly the CX register is used normally as a ______________register.
35 / 50
The second byte in the word designated for one screen location holds
36 / 50
37 / 50
In 8088 architecture, whenever an element is pushed on the stack
38 / 50
The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
39 / 50
The instruction ADC has________ Operand(s)
40 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
41 / 50
42 / 50
When the operand of DIV instruction is of 16 bits then implied dividend will be of
43 / 50
The basic function of SCAS instruction is to
44 / 50
To convert any digit to its ASCII representation
45 / 50
When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
46 / 50
The maximum parameters a subroutine can receive (with the help of registers) are
47 / 50
Code Segment is associated to _______ register by default.
48 / 50
_________ is one of the reasons due to which string instructions are used in 8088
49 / 50
After the execution of MOVS instruction which of the following registers are updated
50 / 50
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