Microprocessors Questions and Answers – Do’s and Don’ts While Using Instruc…

This set of Microprocessor Multiple Choice Questions & Answers (MCQs) focuses on “Do’s and Don’ts While Using Instructions”.

1. The logic required for implementing a program can be expressed in terms of
a) flowchart
b) algorithm
c) flowchart & algorithm
d) none of the mentioned
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2. The operands, source and destination in an instruction cannot be
a) register, register
b) memory location, memory location
c) memory location, register
d) immediate data, register
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3. The instruction that is not possible among the following is
a) MOV AX, BX
b) MOV AX, [BX].
c) MOV 55H, BL
d) MOV AL, 55H
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4. The instruction that is not possible among the following is
a) MOV AX, [BX].
b) MOV AX, 5555H
c) MOV AX, [SI].
d) MOV [SI], [DI].
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5. Both the operands source and destination of an instruction cannot be
a) register, register
b) immediate data, register
c) register, immediate data
d) immediate data, memory location
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6. The registers that cannot be used as operands for arithmetic and logical instructions are
a) general purpose registers
b) pointers
c) index registers
d) segment registers
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7. The operands of an instruction cannot be
a) registers
b) memory operands and immediate operands
c) immediate operands
d) memory operands
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