CS401-Midterm
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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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ASCII stands for ____________. The screen is two dimensional space having:
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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 instruction MOV AX, 5 the number of operands are
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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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In STOS instruction, the implied source will always be in
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After the execution of STOSW the CX will be
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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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After the execution of instruction “RET ”
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After the execution of STOSW, the CX will be
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“Far” jump is not position relative but is _______________
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Left-Shift-Operation the left most bit _______
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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If the direction of the processing of a string is from higher addresses towards lower addresses then
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All the addressing mechanisms in iAPX88 return a number called _____________ address.
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After the execution of “PUSH AX” statement
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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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To convert any digit to its ASCII representation
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Assembly language is:
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REP will always
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RETF will pop the offset in the
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In 8088 architecture, whenever an element is pushed on the stack
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The maximum parameters a subroutine can receive (with the help of registers) are
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“mov byte [num1], 5” is _________ instruction.
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After the execution of SAR instruction:
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The iAPX88 processor supports ___________ modes of memory access.
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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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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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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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The routine that executes in response to an INT instruction is called
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The physical address of the stack is obtained by
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A 32 Bit processor has accumulator of ---------
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Which bit of the attributes byte represents the red component of background color ?
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8088 is a 16bit processor with its accumulator and all registers of __________.
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JC and JNC test the ____________ flag.
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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 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 basic function of SCAS instruction is to
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When a 32 bit number is divided by a 16 bit number, the quotient is of
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All the addressing mechanisms iniAPX88 return a number called ______ address.
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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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MOV instruction transfers a byte or word from which of the following source location.
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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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