Question

The reason for which the RISC processor goes to idle state(or stall) is

(a) delay in reading information from memory

(b) poor instruction set design

(c) dependencies between instructions

(d) all of the mentioned

I had been asked this question in an interview for internship.

This interesting question is from Hybrid Architecture -RISC and CISC Convergence, Advantages of RISC, Design Issues of RISC Processors -2 in chapter RISC Architecture of Microprocessor

Answer 1

Correct choice is (d) all of the mentioned

The best explanation: There are a variety of reasons, including delays in reading information from memory, poor instruction set design, or dependencies between instructions for the RISC processor to remain idle.