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GATEBOOK-2019-COA2-10
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The most appropriate matching for the following pairs:
X
Auto increment addressing
1
Pointers
Y
Absolute addressing
2
Arrays
Z
Immediate addressing
3
Constants
X - 3, Y - 2, Z - 1
X - 1, Y - 3, Z - 2
X - 2, Y - 1, Z - 3
X - 3, Y - 1, Z - 2
gb2019-coa2
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Oct 28, 2018
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Answer
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Auto increment addressing can be used in accessing arrays.
Absolute addressing uses one direct pointer to access the data in memory.
Immediate addressing is used to asign constant values to variables.
answered
Oct 28, 2018
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Answer:
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GATEBOOK-2019-COA2-1
A hypothetical machine has a machine-instruction as, Add $R1, \: 2019$ Which of the following is best description of this instruction in general? Loads the value $2019$ to the content of $R1$ Adds $2019$ to the content of $R1$ and brings the memory word from this ... to location $[R1+2019]$. Add the content of memory location $2019$ to that of $R1$ and store the result in $R1$.
asked
Oct 28, 2018
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gb2019-coa2
0
votes
1
answer
2
GATEBOOK-2019-COA2-2
The addressing mode which makes use of two in-direction pointers is: Index addressing mode Doubly indirect addressing mode Direct addressing mode Indirect addressing mode
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Oct 28, 2018
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gb2019-coa2
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3
GATEBOOK-2019-COA2-3
Consider an instruction for a hypothetical machine which supports all types of addressing modes, as shown below, with a blank space which might be filled to complete the instruction: $ADD\: -\: \#2019$ Assuming the machine always seeks for the smallest ... address mode and the value $2019$ is added to the value inside accumulator and the result is stored back in accumulator.
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Oct 28, 2018
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GATEBOOK
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35
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gb2019-coa2
0
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1
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4
GATEBOOK-2019-COA2-4
Consider following statements about autoincrement/autodecrement addressing modes: In autoincrement addressing mode address of the operand is computed first followed by increment of the content of the register In autodecrement addressing mode address of the operand is computed first followed by decrement ... and (ii) only (i) and (iii) only (i) and (iv) only (ii) and (iii) only
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gb2019-coa2
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GATEBOOK-2019-COA2-5
In the following based scaled indexed addressing mode with displacement instruction,$ADD\:\:EAX\:\: [(10[R_{IDX}])], [R_{BASE}]20$, the effective address is: $EA = (10+R_{IDX})+(20+R_{BASE})$ $EA = (10+R_{IDX})+(20*R_{BASE})$ $EA = (10*R_{IDX})+(20+R_{BASE})$ $EA = (10*R_{IDX})+(20*R_{BASE})$
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gb2019-coa2
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6
GATEBOOK-2019-COA2-6
Which of the following can be used to implement Inherent addressing modes: Stack only Accumulator only Both stack and Accumulator None of stack and Accumulator
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gb2019-coa2
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GATEBOOK-2019-COA2-7
Which of the following addressing modes is most suitable to change the normal sequence of execution of instructions? Relative addressing mode Indirect addressing mode Index with Offset addressing mode Immediate addressing mode
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gb2019-coa2
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