CS401-Midterm
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In STOSB instruction, when DF is Set, SI is
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After the execution of “PUSH AX” statement
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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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The basic function of SCAS instruction is to
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MOV instruction transfers a byte or word from which of the following source location.
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The routine that executes in response to an INT instruction is called
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The first instruction of “COM” file must be at offset:
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The clear screen operation initialize whole block of memory
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To transfer control back the RET instruction take
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When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
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The physical address of the stack is obtained by
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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The iAPX888 architecture consists of _______ register.
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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 maximum parameters a subroutine can receive (with the help of registers) are
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A 32 Bit processor has accumulator of ---------
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After the execution of instruction “RET ”
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_________ is one of the reasons due to which string instructions are used in 8088
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“Far” jump is not position relative but is _______________
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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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Only instructions allow moving data from memory to memory.
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JC and JNC test the ____________ flag.
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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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Each screen location corresponds to a word, the lower byte of this word contains ____
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After the execution of STOSW, the CX will be
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“mov byte [num1], 5” is _________ instruction.
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In STOS instruction, the implied source will always be in
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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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In assembly the CX register is used normally as a ______________register.
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ASCII stands for ____________. The screen is two dimensional space having:
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One screen location corresponds to a
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which bit sets the character "blinking" on the screen?
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After the execution of instruction “RET 2”
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REP will always
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Assembly language is:
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When an item is pushed on the decrementing stack, the top of the stack is
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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 screen location holds
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mov ax,5 has
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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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While using STOBS, if DF=1 then
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To convert any digit to its ASCII representation
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