Does pipelining work better on a RISC or CISC computer and what are the justifications?

Pipelining is one of the primary reasons why RISC processors have a significant speed advantage over CISC processors. If arithmetic and logical instructions can access memory for source or destination operands then it is much more difficult to break down instruction execution into stages with equal durations.

Why is RISC better for pipelining?

Because RISC instructions are simpler than those used in pre-RISC processors (now called CISC, or Complex Instruction Set Computer), they are more conducive to pipelining. While CISC instructions varied in length, RISC instructions are all the same length and can be fetched in a single operation.

What is RISC pipelining in computer organization?

RISC stands for Reduced Instruction Set Computers. The method to obtain the implementation of an instruction per clock cycle is to initiate each instruction with each clock cycle and to pipeline the processor to manage the objective of single-cycle instruction execution.

What is the difference between CISC and RISC?

CISC has complex decoding of instruction. Uses of the pipeline are simple in RISC. Uses of the pipeline are difficult in CISC. It uses a limited number of instruction that requires less time to execute the instructions. It uses a large number of instruction that requires more time to execute the instructions.

Why are uuses of the pipeline difficult in CISC?

Uses of the pipeline are difficult in CISC. It uses a limited number of instruction that requires less time to execute the instructions. It uses a large number of instruction that requires more time to execute the instructions. It uses LOAD and STORE that are independent instructions in the register-to-register a program’s interaction.

What is the architecture of CISC?

CISC architecture includes a complete set of special purpose circuits that carry out these instructions at a very high speed. These instructions interact with memory by using complex addressing modes. CISC processors reduce the program size and hence lesser number of memory cycles are required to execute the programs.

What is the difference between complex and reduced RISC?

These RISC “reduced instructions” require less transistors of hardware space than the complex instructions, leaving more room for general purpose registers. Because all of the instructions execute in a uniform amount of time (i.e. one clock), pipelining is possible.

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