CS401-Midterm
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
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ASCII stands for ____________. The screen is two dimensional space having:
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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To convert any digit to its ASCII representation
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In the instruction MOV AX, 5 the number of operands are
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REP will always
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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 STOS instruction, the implied source will always be in
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The second byte in the word designated for one screen location holds
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When an item is pushed on the decrementing stack, the top of the stack is
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The basic function of SCAS instruction is to
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When two 16bit numbers are added the answer can be 17 bits long, this extra bit that won’t fit in the target register is placed in the where it can be used and tested
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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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Which bit of the attributes byte represents the blue component of background color ?
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Regarding assembler, which statement is true:
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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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After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
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The instruction ADC has________ Operand(s)
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In a video memory, each screen location corresponds to
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While using STOBS, if DF=1 then
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When a 32 bit number is divided by a 16 bit number, the quotient is of
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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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The prevalent convention in most high level languages is stack clearing by the
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The second byte in the word designated for screen location holds
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After the execution of “PUSH AX” statement
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When the operand of DIV instruction is of 16 bits then implied dividend will be of
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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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Which bit of the attributes byte represents the blue component of foreground color
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one RET is executed, it recovers the values from
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In STOSB instruction, when DF is Set, SI is
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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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In the word designated for one screen location, the higher address contains
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In assembly the CX register is used normally as a ______________register.
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8088 is a 16bit processor with its accumulator and all registers of __________.
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CMPS instruction subtracts the source location to the destination location. Destination location always lies in
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The clear screen operation initialize whole block of memory
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One screen location corresponds to a
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Only instructions allow moving data from memory to memory.
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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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_________ 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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