CS401-Midterm
1 / 50
The routine that executes in response to an INT instruction is called
2 / 50
The iAPX888 architecture consists of _______ register.
3 / 50
In STOS instruction, the implied source will always be in
4 / 50
After the execution of “PUSH AX” statement
5 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
6 / 50
“Far” jump is not position relative but is _______________
7 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
8 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
9 / 50
The clear screen operation initialize whole block of memory
10 / 50
After the execution of STOSW, the CX will be
11 / 50
allow changing specific processor behaviors and are used to play with it.
12 / 50
The basic function of SCAS instruction is to
13 / 50
RETF will pop the offset in the
14 / 50
15 / 50
When a 32 bit number is divided by a 16 bit number, the quotient is of
16 / 50
If we want to divide a signed number by 2, this operation can better be accomplished by
17 / 50
In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
18 / 50
In assembly the CX register is used normally as a ______________register.
19 / 50
20 / 50
When the operand of DIV instruction is of 16 bits then implied dividend will be of
21 / 50
In the word designated for one screen location, the higher address contains
22 / 50
_________ is one of the reasons due to which string instructions are used in 8088
23 / 50
All the addressing mechanisms in iAPX88 return a number called _____________ address.
24 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
25 / 50
After the execution of instruction “RET 2”
26 / 50
The physical address of the stack is obtained by
27 / 50
When an item is pushed on the decrementing stack, the top of the stack is
28 / 50
The maximum parameters a subroutine can receive (with the help of registers) are
29 / 50
In 8088 architecture, whenever an element is pushed on the stack
30 / 50
Which is the unidirectional bus ?
Control Bus
(II) Data Bus
(III) Address Bus
31 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
32 / 50
After execution of JCXZ instruction CX will changed with flag affect.
33 / 50
Which mathematical operation is dominant during the execution of SCAS instruction
34 / 50
The prevalent convention in most high level languages is stack clearing by the
35 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
36 / 50
JC and JNC test the ____________ flag.
37 / 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
38 / 50
39 / 50
Only instructions allow moving data from memory to memory.
40 / 50
41 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
42 / 50
To transfer control back the RET instruction take
43 / 50
The instruction ADC has________ Operand(s)
44 / 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
45 / 50
After the execution of instruction “RET ”
46 / 50
47 / 50
One screen location corresponds to a
48 / 50
The iAPX88 processor supports ___________ modes of memory access.
49 / 50
| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
50 / 50
Assembly language is:
Your score is
The average score is 64%
Restart quiz
