Which characteristic distinguishes RISC from CISC instruction sets?
2025
Which characteristic distinguishes RISC from CISC instruction sets?
- A.
RISC supports fewer registers; CISC has larger register files.
- B.
RISC uses variable-length instructions; CISC uses fixed-length.
- C.
RISC has fewer, simpler instructions; CISC has complex, multi-cycle instructions.
- D.
RISC relies on microcode; CISC uses hardwired control.
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Correct answer: C
RISC uses fixed-length instructions and simpler addressing modes, whereas CISC uses variable-length instructions and complex operations.