CS401-Midterm
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In the instruction MOV AX, 5 the number of operands are
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After the execution of STOSW, the CX will be
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In STOS instruction, the implied source will always be in
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allow changing specific processor behaviors and are used to play with it.
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One screen location corresponds to a
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The physical address of the stack is obtained by
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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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To transfer control back the RET instruction take
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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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RETF will pop the offset in the
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A 32 Bit processor has accumulator 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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In STOSB instruction, when DF is Set, SI is
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After execution of JCXZ instruction CX will changed with flag affect.
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In the instruction “CMP AX,BX” the contents of
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Which mathematical operation is dominant during the execution of SCAS instruction
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one RET is executed, it recovers the values from
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ASCII stands for ____________. The screen is two dimensional space having:
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The basic function of SCAS instruction is to
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In assembly the CX register is used normally as a ______________register.
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The iAPX88 processor supports ___________ modes of memory access.
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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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Which bit of the attributes byte represents the blue component of background color ?
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Each screen location corresponds to a word, the lower byte of this word contains ____
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“Far” jump is not position relative but is _______________
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The instruction ADC has________ Operand(s)
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To convert any digit to its ASCII representation
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After the execution of “PUSH AX” statement
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one Only ___________ instructions allow moving data from memory to memory.
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The first instruction of “COM” file must be at offset:
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When a 16 bit number is divided by an 8 bit number, the dividend will be in
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After the execution of instruction “RET 2”
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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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All the addressing mechanisms in iAPX88 return a number called _____________ address.
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The iAPX888 architecture consists of _______ register.
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The second byte in the word designated for one screen location holds
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After the execution of SAR instruction:
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The execution of the instruction “mov word [ES : 160], 0x1230” will print a character “0” on the screen at
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Which bit of the attributes byte represents the red component of background color ?
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one DIV instruction has
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which bit sets the character "blinking" on the screen?
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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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MOV instruction transfers a byte or word from which of the following source location.
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After the execution of STOSW the CX will be
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