Operational Semantics in Programming
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Questions and Answers

What is one of the problems with using operational semantics for complete formal semantics descriptions?

  • The sequence of state changes is too easy to analyze
  • The storage of a real computer is too small and simple
  • The intermediate language is too high-level
  • The individual steps in the execution of machine language are too small and numerous (correct)

    • What is the main purpose of operational semantics?

  • To describe the meaning of a statement or program by specifying the effects of running it on a machine (correct)
  • To design high-level programming languages
  • To examine the complete sequence of state changes in a program
  • To analyze the complexity of real computer storage

    • What is the first step in creating an operational semantics description of a language?

  • Analyzing the complexity of real computer storage
  • Designing an appropriate intermediate language (correct)
  • Creating a high-level programming language
  • Examining the complete sequence of state changes in a program

    • What is sometimes called natural operational semantics?

    <p>Interest in the final result of the execution of a complete program</p> Signup and view all the answers

    What is the highest level of interest in operational semantics?

    <p>The final result of the execution of a complete program</p> Signup and view all the answers

    What is the highest level of interest in operational semantics?

    <p>Natural operational semantics</p> Signup and view all the answers

    What is the main challenge with using operational semantics for complete formal semantics descriptions?

    <p>The resulting changes to the state of the machine are too small and too numerous</p> Signup and view all the answers

    What is sometimes called structural operational semantics?

    <p>Determining the precise meaning of a program through state changes</p> Signup and view all the answers

    What is the first step in creating an operational semantics description of a language?

    <p>Designing an appropriate intermediate language</p> Signup and view all the answers

    Why is machine language not suitable for easily understanding operational semantics?

    <p>It is too low-level to be easily understood</p> Signup and view all the answers

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