CS401-Midterm
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which bit sets the character "blinking" on the screen?
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The first instruction of “COM” file must be at offset:
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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
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assembly the CX register is used normally as a ______________register.
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Which mathematical operation is dominant during the execution of SCAS instruction
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“mov byte [num1],5” is _______ instruction.
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After the execution of “PUSH AX” statement
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RETF will pop the offset in the
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JC and JNC test the ____________ flag.
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The second byte in the word designated for screen location holds
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The routine that executes in response to an INT instruction is called
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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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After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
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After execution of JCXZ instruction CX will changed with flag affect.
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In STOS instruction, the implied source will always be in
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A 32 Bit processor has accumulator of ---------
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Left-Shift-Operation the left most bit _______
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ASCII stands for ____________. The screen is two dimensional space having:
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mov ax,5 has
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MOV instruction transfers a byte or word from which of the following source location.
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The basic function of SCAS instruction is to
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Only instructions allow moving data from memory to memory.
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To convert any digit to its ASCII representation
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The instruction ADC has________ Operand(s)
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REP will always
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The physical address of the stack is obtained by
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Assembly language is:
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The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the 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 ____
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In 8088 architecture, whenever an element is pushed on the stack
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CMPS instruction subtracts the source location to the destination location. Destination location always lies in
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one DIV instruction has
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In the instruction “CMP AX,BX” the contents of
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Which bit of the attributes byte represents the red component of background color ?
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Regarding assembler, which statement is true:
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44 / 50
Which is the unidirectional bus ?
Control Bus
(II) Data Bus
(III) Address Bus
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The second byte in the word designated for one screen location holds
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To transfer control back the RET instruction take
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One screen location corresponds to a
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Which bit of the attributes byte represents the blue component of foreground color
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“mov byte [num1], 5” is _________ instruction.
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