CS401-Midterm
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When the operand of DIV instruction is of 16 bits then implied dividend will be of
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CMPS instruction subtracts the source location to the destination location. Destination location always lies in
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When a 16 bit number is divided by an 8 bit number, the quotient will be in
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To convert any digit to its ASCII representation
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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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To transfer control back the RET instruction take
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All the addressing mechanisms iniAPX88 return a number called ______ address.
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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 red component of background color ?
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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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After the execution of STOSW, the CX will be
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REP will always
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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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In STOS instruction, the implied source will always be in
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One screen location corresponds to a
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All the addressing mechanisms in iAPX88 return a number called _____________ address.
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After the execution of instruction “RET”
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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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Code Segment is associated to _______ register by default.
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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The basic function of SCAS instruction is to
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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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The iAPX888 architecture consists of _______ register.
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After the execution of “PUSH AX” statement
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The iAPX88 processor supports ___________ modes of memory access.
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An offset alone is not complete without
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ASCII stands for ____________. The screen is two dimensional space having:
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In a video memory, each screen location corresponds to
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
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In 8088 architecture, whenever an element is pushed on the stack
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In STOSB instruction, when DF is Set, SI is
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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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After execution of JCXZ instruction CX will changed with flag affect.
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which bit sets the character "blinking" on the screen?
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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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While using STOBS, if DF=1 then
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When an item is pushed on the decrementing stack, the top of the stack is
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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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The physical address of the stack is obtained by
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assembly the CX register is used normally as a ______________register.
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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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