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Questions and Answers
Which of the following statements about instruction sets is true?
Which of the following statements about instruction sets is true?
- Instruction sets neither allow register nor memory operands to be used in addressing modes.
- Instruction sets only allow register operands to be used in addressing modes.
- Instruction sets permit direct memory addressing as operands.
- Instruction sets allow both register and memory operands to be used in addressing modes. (correct)
What is the primary constraint on operands in instruction sets?
What is the primary constraint on operands in instruction sets?
- Memory operands cannot be used in addressing modes. (correct)
- Register operands cannot be used in addressing modes.
- Both memory and register operands cannot be used in addressing modes.
- Only immediate operands can be used in addressing modes.
What is the number of stages in the instruction cycle?
What is the number of stages in the instruction cycle?
- Four stages: fetch, decode, execute, and store
- Two stages: fetch and execute
- One stage: execute
- Three stages: fetch, decode, and execute (correct)
What is the primary purpose of the fetch stage in the instruction cycle?
What is the primary purpose of the fetch stage in the instruction cycle?
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What is the relationship between instruction sets and addressing modes?
What is the relationship between instruction sets and addressing modes?
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