CS401-Midterm
1 / 50
After the execution of instruction “RET 2”
2 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
3 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
4 / 50
In assembly the CX register is used normally as a ______________register.
5 / 50
In the word designated for one screen location, the higher address contains
6 / 50
“mov byte [num1], 5” is _________ instruction.
7 / 50
Which bit of the attributes byte represents the blue component of foreground color
8 / 50
After the execution of instruction “RET”
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In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
10 / 50
After the execution of “PUSH AX” statement
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When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
12 / 50
The basic function of SCAS instruction is to
13 / 50
The second byte in the word designated for screen location holds
14 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
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All the addressing mechanisms in iAPX88 return a number called _____________ address.
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When an item is pushed on the decrementing stack, the top of the stack is
17 / 50
To convert any digit to its ASCII representation
18 / 50
The maximum parameters a subroutine can receive (with the help of registers) are
19 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen, color of the character will be
20 / 50
When a 32 bit number is divided by a 16 bit number, the quotient is of
21 / 50
Code Segment is associated to _______ register by default.
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23 / 50
The first instruction of “COM” file must be at offset:
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“Far” jump is not position relative but is _______________
25 / 50
In the Rotate Right Operation every bit moves one position to right and the bit dropped from the right is inserted at the left and:
26 / 50
One screen location corresponds to a
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28 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
29 / 50
The iAPX88 processor supports ___________ modes of memory access.
30 / 50
one RET is executed, it recovers the values from
31 / 50
32 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
33 / 50
JC and JNC test the ____________ flag.
34 / 50
The instruction ADC has________ Operand(s)
35 / 50
In STOSB instruction, when DF is Set, SI is
36 / 50
MOV instruction transfers a byte or word from which of the following source location.
37 / 50
In 8088 architecture, whenever an element is pushed on the stack
38 / 50
CMPS instruction subtracts the source location to the destination location. Destination location always lies in
39 / 50
After the execution of MOVS instruction which of the following registers are updated
40 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
41 / 50
The clear screen operation initialize whole block of memory
42 / 50
43 / 50
_______ register holds the address of next instruction is to be executed
44 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
45 / 50
After the execution of STOSW, the CX will be
46 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
47 / 50
The execution of the instruction “mov word [ES: DI], 0x0720”
48 / 50
Only instructions allow moving data from memory to memory.
49 / 50
If the direction of the processing of a string is from higher addresses towards lower addresses then
50 / 50
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