CS401-Midterm
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When a 32 bit number is divided by a 16 bit number, the quotient is of
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After the execution of SAR instruction:
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The instruction ADC has________ Operand(s)
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While using STOBS, if DF=1 then
5 / 50
In 8088 architecture, whenever an element is pushed on the stack
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RETF will pop the offset in the
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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
8 / 50
one DIV instruction has
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The routine that executes in response to an INT instruction is called
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In STOSB instruction, when DF is Set, SI is
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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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The second byte in the word designated for one screen location holds
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which bit sets the character "blinking" on the screen?
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
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JC and JNC test the ____________ flag.
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Left-Shift-Operation the left most bit _______
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The extended ASCII has
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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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_______ register holds the address of next instruction is to be executed
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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After the execution of “PUSH AX” statement
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“mov byte [num1], 5” is _________ instruction.
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mov ax,5 has
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In STOS instruction, the implied source will always be in
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Regarding assembler, which statement is true:
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“Far” jump is not position relative but is _______________
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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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one RET is executed, it recovers the values from
30 / 50
The iAPX888 architecture consists of _______ register.
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In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
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physical address of the stack is obtained by
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An offset alone is not complete without
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After the execution of STOSW, the CX will be
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Only instructions allow moving data from memory to memory.
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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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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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To convert any digit to its ASCII representation
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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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To transfer control back the RET instruction take
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After the execution of instruction “RET”
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All the addressing mechanisms iniAPX88 return a number called ______ address.
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The basic function of SCAS instruction is to
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In a video memory, each screen location corresponds to
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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 “A” on the screen, color of the character will be
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one Only ___________ instructions allow moving data from memory to memory.
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8088 is a 16bit processor with its accumulator and all registers of __________.
49 / 50
Code Segment is associated to _______ register by default.
50 / 50
ASCII stands for ____________. The screen is two dimensional space having:
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