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Microprocessor

Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 ANI OFH
 XRI 0FH
 ANI F0H
 XRI FOH

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Microprocessor
The address bus of any microprocessor is always

 Unidirectional
 Either unidirectional or bi-directional
 Bi-directional
 None

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Microprocessor
Of the following circuits, the one which involves storage is

RS Latch
Decoder
Nand
Mux

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Microprocessor
What are the sets of commands in a program which are not translated into machine instructions during assembly process, called?

 Mnemonics
 Operands
 Directives
 Identifiers

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Microprocessor
During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction.

 Bus Interface Unit (BIU)
 Execution Unit (EU)
 None of these
 Both ‘c’ and ‘d’

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Microprocessor
HLT opcode means

  store result in memory.
  load data to accumulator.
  load accumulator with contents of register.
  end of program.

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