☰ Microprocessors (Electrical Engineering) - MCQs

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Q7.

Following is a 16 bit register for 8085 microprocessor:

  • A. stack pointer
  • B. accumulator
  • C. register B
  • D. register C

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Q8.

The register which holds the information about the nature of results of algorithm of logic operations is called as

  • A. accumulator
  • B. condition codes register
  • C. flag register
  • D. process status registers

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Q9.

When a program is being executed in an 8085 microprocessor, its program counter contents

  • A. the memory addresses as the instruction that is to be executed next
  • B. the memory addresses of the instruction that is being currently matched
  • C. the total number of instructions in the program being executed
  • D. the number of instructions in the current program that have already been executed

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Q10.

Program counter in a digital computer

  • A. count the number of times the loops are executed
  • B. count the numbers of programs run in the machine
  • C. count the number of times subroutine is called
  • D. points the memory address of the current or the next instruction to be executed

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Q11.

The program counter in a 8085 microprocessor is a 16 bit register, because

  • A. it count 16 bits at a time
  • B. there are 16 address times
  • C. its the users storing 16 bit data temporarily
  • D. it has to fetch two 8 bit data at a time

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Q12.

The addressing mode used in the instruction SATXB is

  • A. direct
  • B. immediate
  • C. implicit
  • D. indirect

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