CS401-Midterm
1 / 50
MOV instruction transfers a byte or word from which of the following source location.
2 / 50
Which bit of the attributes byte represents the red component of background color ?
3 / 50
When an item is pushed on the decrementing stack, the top of the stack is
4 / 50
After the execution of instruction “RET ”
5 / 50
After the execution of MOVS instruction which of the following registers are updated
6 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
7 / 50
JC and JNC test the ____________ flag.
8 / 50
After the execution of instruction “RET”
9 / 50
8088 is a 16bit processor with its accumulator and all registers of __________.
10 / 50
After the execution of “PUSH AX” statement
11 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
12 / 50
The maximum parameters a subroutine can receive (with the help of registers) are
13 / 50
one DIV instruction has
14 / 50
15 / 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
16 / 50
Regarding assembler, which statement is true:
17 / 50
The first instruction of “COM” file must be at offset:
18 / 50
assembly the CX register is used normally as a ______________register.
19 / 50
In the instruction MOV AX, 5 the number of operands are
20 / 50
The extended ASCII has
21 / 50
In assembly the CX register is used normally as a ______________register.
22 / 50
A 32 Bit processor has accumulator of ---------
23 / 50
Left-Shift-Operation the left most bit _______
24 / 50
After the execution of STOSW, the CX will be
25 / 50
The routine that executes in response to an INT instruction is called
26 / 50
which bit sets the character "blinking" on the screen?
27 / 50
After the execution of STOSW the CX will be
28 / 50
29 / 50
RETF will pop the offset in the
30 / 50
allow changing specific processor behaviors and are used to play with it.
31 / 50
ASCII stands for ____________. The screen is two dimensional space having:
32 / 50
In a video memory, each screen location corresponds to
33 / 50
When the operand of DIV instruction is of 16 bits then implied dividend will be of
34 / 50
Each screen location corresponds to a word, the lower byte of this word contains ____
35 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
36 / 50
The second byte in the word designated for screen location holds
37 / 50
While using STOBS, if DF=1 then
38 / 50
The iAPX888 architecture consists of _______ register.
39 / 50
To convert any digit to its ASCII representation
40 / 50
In 8088 architecture, whenever an element is pushed on the stack
41 / 50
The second byte in the word designated for one screen location holds
42 / 50
When a 32 bit number is divided by a 16 bit number, the quotient is of
43 / 50
44 / 50
One screen location corresponds to a
45 / 50
Code Segment is associated to _______ register by default.
46 / 50
47 / 50
mov ax,5 has
48 / 50
Only instructions allow moving data from memory to memory.
49 / 50
Which bit of the attributes byte represents the blue component of foreground color
50 / 50
After execution of JCXZ instruction CX will changed with flag affect.
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