CS401-Midterm
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Stack is a ______ that behaves in a first in last out manner.
2 / 50
One screen location corresponds to a
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In STOSB instruction, when DF is Set, SI is
4 / 50
After the execution of STOSW, the CX will be
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All the addressing mechanisms in iAPX88 return a number called _____________ address.
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In a video memory, each screen location corresponds to
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To convert any digit to its ASCII representation
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After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
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The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen, color of the character will be
10 / 50
The first instruction of “COM” file must be at offset:
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The physical address of the stack is obtained by
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When an item is pushed on the decrementing stack, the top of the stack is
13 / 50
The routine that executes in response to an INT instruction is called
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If the direction of the processing of a string is from higher addresses towards lower addresses then
15 / 50
8088 is a 16bit processor with its accumulator and all registers of __________.
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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
17 / 50
Each screen location corresponds to a word, the lower byte of this word contains ____
18 / 50
19 / 50
After execution of JCXZ instruction CX will changed with flag affect.
20 / 50
In assembly the CX register is used normally as a ______________register.
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The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
22 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
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24 / 50
assembly the CX register is used normally as a ______________register.
25 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
26 / 50
The iAPX88 processor supports ___________ modes of memory access.
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28 / 50
one DIV instruction has
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When a 32 bit number is divided by a 16 bit number, the quotient is of
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31 / 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:
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33 / 50
The execution of the instruction “mov word [ES: DI], 0x0720”
34 / 50
Which mathematical operation is dominant during the execution of SCAS instruction
35 / 50
In STOS instruction, the implied source will always be in
36 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
37 / 50
After the execution of instruction “RET ”
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39 / 50
When the operand of DIV instruction is of 16 bits then implied dividend will be of
40 / 50
41 / 50
The iAPX888 architecture consists of _______ register.
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43 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
44 / 50
ASCII stands for ____________. The screen is two dimensional space having:
45 / 50
After the execution of “PUSH AX” statement
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In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
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48 / 50
_______ register holds the address of next instruction is to be executed
49 / 50
After the execution of STOSW the CX will be
50 / 50
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