CS401-Midterm
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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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allow changing specific processor behaviors and are used to play with it.
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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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REP will always
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After the execution of STOSW, the CX will be
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After the execution of “PUSH AX” statement
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CMPS instruction subtracts the source location to the destination location. Destination location always lies in
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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 second byte in the word designated for screen location holds
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_______ register holds the address of next instruction is to be executed
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Which bit of the attributes byte represents the blue component of foreground color
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In STOS instruction, the implied source will always be in
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The instruction ADC has________ Operand(s)
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18 / 50
which bit sets the character "blinking" on the screen?
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The routine that executes in response to an INT instruction is called
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assembly the CX register is used normally as a ______________register.
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After the execution of STOSW the CX will be
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Which bit of the attributes byte represents the red component of background color ?
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The execution of the instruction “mov word [ES: DI], 0x0720”
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In assembly the CX register is used normally as a ______________register.
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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 prevalent convention in most high level languages is stack clearing by the
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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 iAPX888 architecture consists of _______ register.
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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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Which of the following options contain the set of instructions to open a window to the video memory?
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One screen location corresponds to a
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The basic function of SCAS instruction is to
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“mov byte [num1], 5” is _________ instruction.
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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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38 / 50
A 32 Bit processor has accumulator of ---------
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To transfer control back the RET instruction take
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The maximum parameters a subroutine can receive (with the help of registers) are
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Which bit of the attributes byte represents the blue component of background color ?
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Which mathematical operation is dominant during the execution of SCAS instruction
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To convert any digit to its ASCII representation
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In the word designated for one screen location, the higher address contains
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Assembly language is:
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After the execution of SAR instruction:
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The first instruction of “COM” file must be at offset:
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While using STOBS, if DF=1 then
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