CS401-Midterm
1 / 50
Which bit of the attributes byte represents the red component of background color ?
2 / 50
The first instruction of “COM” file must be at offset:
3 / 50
The prevalent convention in most high level languages is stack clearing by the
4 / 50
5 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
6 / 50
which bit sets the character "blinking" on the screen?
7 / 50
JC and JNC test the ____________ flag.
8 / 50
Left-Shift-Operation the left most bit _______
9 / 50
In the word designated for one screen location, the higher address contains
10 / 50
To transfer control back the RET instruction take
11 / 50
REP will always
12 / 50
Each screen location corresponds to a word, the lower byte of this word contains ____
13 / 50
MOV instruction transfers a byte or word from which of the following source location.
14 / 50
The second byte in the word designated for screen location holds
15 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
16 / 50
After the execution of instruction “RET ”
17 / 50
Regarding assembler, which statement is true:
18 / 50
The extended ASCII has
19 / 50
In 8088 architecture, whenever an element is pushed on the stack
20 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
21 / 50
One screen location corresponds to a
22 / 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
23 / 50
In STOSB instruction, when DF is Set, SI is
24 / 50
The routine that executes in response to an INT instruction is called
25 / 50
The iAPX888 architecture consists of _______ register.
26 / 50
After the execution of instruction “RET 2”
27 / 50
28 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
29 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
30 / 50
When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
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
33 / 50
The physical address of the stack is obtained by
34 / 50
After the execution of STOSW the CX will be
35 / 50
36 / 50
In STOS instruction, the implied source will always be in
37 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
38 / 50
8088 is a 16bit processor with its accumulator and all registers of __________.
39 / 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
40 / 50
41 / 50
In the instruction MOV AX, 5 the number of operands are
42 / 50
Stack is a ______ that behaves in a first in last out manner.
43 / 50
The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
44 / 50
The execution of the instruction “mov word [ES: DI], 0x0720”
45 / 50
In assembly the CX register is used normally as a ______________register.
46 / 50
The basic function of SCAS instruction is to
47 / 50
one RET is executed, it recovers the values from
48 / 50
49 / 50
After the execution of SAR instruction:
50 / 50
Only instructions allow moving data from memory to memory.
Your score is
The average score is 64%
Restart quiz
