CS401-Midterm
1 / 50
The physical address of the stack is obtained by
2 / 50
After the execution of STOSW the CX will be
3 / 50
The basic function of SCAS instruction is to
4 / 50
mov ax,5 has
5 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
6 / 50
which bit sets the character "blinking" on the screen?
7 / 50
Which bit of the attributes byte represents the red component of background color ?
8 / 50
one Only ___________ instructions allow moving data from memory to memory.
9 / 50
After the execution of SAR instruction:
10 / 50
In assembly the CX register is used normally as a ______________register.
11 / 50
One screen location corresponds to a
12 / 50
13 / 50
If the direction of the processing of a string is from higher addresses towards lower addresses then
14 / 50
The instruction ADC has________ Operand(s)
15 / 50
Which bit of the attributes byte represents the blue component of foreground color
16 / 50
Stack is a ______ that behaves in a first in last out manner.
17 / 50
REP will always
18 / 50
After the execution of instruction “RET ”
19 / 50
In a video memory, each screen location corresponds to
20 / 50
21 / 50
8088 is a 16bit processor with its accumulator and all registers of __________.
22 / 50
The first instruction of “COM” file must be at offset:
23 / 50
24 / 50
In the instruction “CMP AX,BX” the contents of
25 / 50
decrements SP (the stack pointer) by two and then transfers a word from the source operand to the top of stack
26 / 50
physical address of the stack is obtained by
27 / 50
Regarding assembler, which statement is true:
28 / 50
The routine that executes in response to an INT instruction is called
29 / 50
The iAPX888 architecture consists of _______ register.
30 / 50
In 8088 architecture, whenever an element is pushed on the stack
31 / 50
In STOSB instruction, when DF is Set, SI is
32 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
33 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
34 / 50
A 32 Bit processor has accumulator of ---------
35 / 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
36 / 50
Assembly language is:
37 / 50
Left-Shift-Operation the left most bit _______
38 / 50
Each screen location corresponds to a word, the lower byte of this word contains ____
39 / 50
allow changing specific processor behaviors and are used to play with it.
40 / 50
The clear screen operation initialize whole block of memory
41 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
42 / 50
43 / 50
When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
44 / 50
MOV instruction transfers a byte or word from which of the following source location.
45 / 50
Which bit of the attributes byte represents the blue component of background color ?
46 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
47 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen, color of the character will be
48 / 50
While using STOBS, if DF=1 then
49 / 50
After the execution of “PUSH AX” statement
50 / 50
_________ is one of the reasons due to which string instructions are used in 8088
Your score is
The average score is 64%
Restart quiz
