CS401-Midterm
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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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The first instruction of “COM” file must be at offset:
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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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In a video memory, each screen location corresponds to
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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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In STOS instruction, the implied source will always be in
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When an item is pushed on the decrementing stack, the top of the stack is
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Each screen location corresponds to a word, the lower byte of this word contains ____
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Which bit of the attributes byte represents the blue component of background color ?
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The basic function of SCAS instruction is to
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In assembly the CX register is used normally as a ______________register.
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MOV instruction transfers a byte or word from which of the following source location.
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After the execution of STOSW the CX will be
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Execution of the instruction “mov word [ES : 0], 0x0741” will print
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While using STOBS, if DF=1 then
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Which bit of the attributes byte represents the red component of background color ?
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All the addressing mechanisms iniAPX88 return a number called ______ address.
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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 iAPX888 architecture consists of _______ register.
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The extended ASCII has
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When the operand of DIV instruction is of 16 bits then implied dividend will be of
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Only instructions allow moving data from memory to memory.
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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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Code Segment is associated to _______ register by default.
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The routine that executes in response to an INT instruction is called
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One screen location corresponds to a
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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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When a 32 bit number is divided by a 16 bit number, the quotient will be stored in
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one Only ___________ instructions allow moving data from memory to memory.
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An offset alone is not complete without
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The physical address of the stack is obtained by
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JC and JNC test the ____________ flag.
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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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Which bit of the attributes byte represents the blue component of foreground color
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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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allow changing specific processor behaviors and are used to play with it.
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In STOSB instruction, when DF is Set, SI is
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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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Regarding assembler, which statement is true:
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
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The clear screen operation initialize whole block of memory
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Your score is
The average score is 64%
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