CS401-Midterm
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The physical address of the stack is obtained by
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
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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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To transfer control back the RET instruction take
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The first instruction of “COM” file must be at offset:
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After the execution of STOSW the CX will be
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To convert any digit to its ASCII representation
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which bit sets the character "blinking" on the screen?
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“mov byte [num1], 5” is _________ instruction.
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The prevalent convention in most high level languages is stack clearing by the
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Each screen location corresponds to a word, the lower byte of this word contains ____
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The second byte in the word designated for screen location holds
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In the instruction MOV AX, 5 the number of operands are
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Which bit of the attributes byte represents the blue component of background color ?
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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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When a 32 bit number is divided by a 16 bit number, the quotient is of
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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 MOVS instruction which of the following registers are updated
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One screen location corresponds to a
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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
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physical address of the stack is obtained by
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After execution of JCXZ instruction CX will changed with flag affect.
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The execution of the instruction “mov word [ES: DI], 0x0720”
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If we want to divide a signed number by 2, this operation can better be accomplished by
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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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In the word designated for one screen location, the higher address contains
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decrements SP (the stack pointer) by two and then transfers a word from the source operand to the top of stack
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Which mathematical operation is dominant during the execution of SCAS instruction
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The instruction ADC has________ Operand(s)
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_________ is one of the reasons due to which string instructions are used in 8088
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RETF will pop the offset in the
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if ax contains decimal -2 and BX contains decimal 2 then after the execution of instructions: CMP AX, BX ,JA label
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The routine that executes in response to an INT instruction is called
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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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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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In assembly the CX register is used normally as a ______________register.
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assembly the CX register is used normally as a ______________register.
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CMPS instruction subtracts the source location to the destination location. Destination location always lies in
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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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