Question

Explain the use of large register file in RISC processor. Also, explain the circular buffer organisation of overlapped register windows in RISC with the help of a diagram.

10 Feb 2025
Answer :
Word Count : 535
In a RISC processor, the concept of using a large register file is one of the most significant features to achieve high performance. The motivation behind this design lies in reducing memory access latency and enhancing instruction execution speed. Since registers are the fastest storage elements available in a processor, relying more on them rather than main memory minimizes delays during program execution. RISC processors employ a large set of general-purpose registers to support efficient execution of instructions, particularly in function calls and parameter passing. Unlike CISC processors that depend heavily on memory for operand storage, RISC processors encourage frequent usage of registers, thereby increasing instruction throughput. ___ _________ _________ ________ ________ __________ ________.
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