Question textThe pipelined RV32I processor needs Answer[input]CorrectThe correct answer is: 4Mark 1.00 out of 1.00 pipeline registers.

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BlackTom AI · Accepted Answer

The question concerns the pipelined RV32I processor and asks for the number of pipeline registers required.
First, recall the classic five-stage RISC pipeline commonly used for RV32I: Instruction Fetch (IF), Instruction Decode (ID), Execute (EX), Memory access (MEM), and Write Back (WB).
Between each pair of adjacent stages there is a register to hold the data as the instruction advances from one stage to the next. That means there are registers between IF and ID, between ID and EX, between EX and MEM, and between MEM and WB.
Counting these inter-stage boundaries, we have four pipeline registers in total.
Some students might wonder about registers inside a stage or edge-case registers for hazards; however, the standard pipeline architecture for RV32I uses exactly four inter-stage pipeline registers to connect the five stages.
Therefore, the correct value to fill in is 4.

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Question textThe pipelined RV32I processor needs Answer[input]CorrectThe correct answer is: 4Mark 1.00 out of 1.00 pipeline registers.

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