CS401-Midterm
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After the execution of STOSW, the CX will be
2 / 50
_________ is one of the reasons due to which string instructions are used in 8088
3 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
4 / 50
An offset alone is not complete without
5 / 50
The second byte in the word designated for screen location holds
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When an item is pushed on the decrementing stack, the top of the stack is
7 / 50
Which of the following options contain the set of instructions to open a window to the video memory?
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After the execution of STOSW the CX will be
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assembly the CX register is used normally as a ______________register.
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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
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Each screen location corresponds to a word, the lower byte of this word contains ____
12 / 50
To transfer control back the RET instruction take
13 / 50
The basic function of SCAS instruction is to
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“mov byte [num1], 5” is _________ instruction.
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The physical address of the stack is obtained by
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After the execution of instruction “RET ”
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Which bit of the attributes byte represents the blue component of background color ?
18 / 50
_______ register holds the address of next instruction is to be executed
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When a 16 bit number is divided by an 8 bit number, the dividend will be in
20 / 50
In assembly the CX register is used normally as a ______________register.
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After the execution of instruction “RET 2”
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After execution of JCXZ instruction CX will changed with flag affect.
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ASCII stands for ____________. The screen is two dimensional space having:
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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
25 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
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Code Segment is associated to _______ register by default.
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In the instruction MOV AX, 5 the number of operands are
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To convert any digit to its ASCII representation
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REP will always
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31 / 50
Which mathematical operation is dominant during the execution of SCAS instruction
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33 / 50
The instruction ADC has________ Operand(s)
34 / 50
Which is the unidirectional bus ?
Control Bus
(II) Data Bus
(III) Address Bus
35 / 50
The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
36 / 50
physical address of the stack is obtained by
37 / 50
In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
38 / 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
39 / 50
| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
40 / 50
In STOSB instruction, when DF is Set, SI is
41 / 50
After the execution of instruction “RET”
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The iAPX88 processor supports ___________ modes of memory access.
43 / 50
In 8088 architecture, whenever an element is pushed on the stack
44 / 50
The first instruction of “COM” file must be at offset:
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
46 / 50
Which bit of the attributes byte represents the blue component of foreground color
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mov ax,5 has
48 / 50
“Far” jump is not position relative but is _______________
49 / 50
While using STOBS, if DF=1 then
50 / 50
After the execution of SAR instruction:
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