Computer Organization Instruction Sets
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Computer Organization Instruction Sets

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Questions and Answers

What is a limitation of zero-address instructions?

  • They are limited in their functionality (correct)
  • They allow for much flexibility in addressing modes
  • They require more memory space
  • They are faster to execute

    • What is a disadvantage of one-address instructions?

  • They are faster to execute
  • They are slower to execute (correct)
  • They allow for much flexibility in addressing modes
  • They require less memory space

    • What is a disadvantage of two-address instructions?

  • They require more memory space and can be slower to execute (correct)
  • They are faster to execute
  • They allow for much flexibility in addressing modes
  • They require less memory space

    • What is a disadvantage of three-address instructions?

    <p>They require even more memory space and can be slower to execute</p> Signup and view all the answers

    What does the SUB instruction do in the 8085 microprocessor?

    <p>Subtracts the content of the accumulator from itself</p> Signup and view all the answers

    What is the purpose of the HLT instruction?

    <p>To halt the execution of the program</p> Signup and view all the answers

    What is the assumption made about each instruction in the given set?

    <p>Each instruction will use the result of the previous instruction</p> Signup and view all the answers

    What is the effect of the SUB instruction on the accumulator?

    <p>It clears the content of the accumulator</p> Signup and view all the answers

    What is the relationship between the instructions in the given set?

    <p>Each instruction uses the result of the previous instruction</p> Signup and view all the answers

    What is the purpose of the DCR instruction?

    <p>To decrement the content of a register</p> Signup and view all the answers

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