CS401-Midterm
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After execution of JCXZ instruction CX will changed with flag affect.
2 / 50
After the execution of SAR instruction:
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The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
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In a video memory, each screen location corresponds to
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When an item is pushed on the decrementing stack, the top of the stack is
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The second byte in the word designated for screen location holds
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
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The physical address of the stack is obtained by
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10 / 50
To convert any digit to its ASCII representation
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Which mathematical operation is dominant during the execution of SCAS instruction
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One screen location corresponds to a
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“mov byte [num1], 5” is _________ instruction.
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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When a very large number is divided by very small number so that the quotient is larger than the space provided, this is called
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Which bit of the attributes byte represents the red component of background color ?
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In STOS instruction, the implied source will always be in
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Which of the following options contain the set of instructions to open a window to the video memory?
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An offset alone is not complete without
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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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Left-Shift-Operation the left most bit _______
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After the execution of STOSW, the CX will be
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After the execution of instruction “RET ”
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26 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
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28 / 50
While using STOBS, if DF=1 then
29 / 50
_________ is one of the reasons due to which string instructions are used in 8088
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All the addressing mechanisms in iAPX88 return a number called _____________ address.
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The clear screen operation initialize whole block of memory
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When a 16 bit number is divided by an 8 bit number, the quotient will be in
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Assembly language is:
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REP will always
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8088 is a 16bit processor with its accumulator and all registers of __________.
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In the instruction “CMP AX,BX” the contents of
37 / 50
After the execution of MOVS instruction which of the following registers are updated
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Each screen location corresponds to a word, the lower byte of this word contains ____
39 / 50
RETF will pop the offset in the
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43 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
44 / 50
which bit sets the character "blinking" on the screen?
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Which bit of the attributes byte represents the blue component of background color ?
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In assembly the CX register is used normally as a ______________register.
48 / 50
MOV instruction transfers a byte or word from which of the following source location.
49 / 50
mov ax,5 has
50 / 50
After the execution of “PUSH AX” statement
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