Question

Are ALU operation results available after the execution stage or the memory stage in MIPS pipelining?

a) Execution stage
b) Memory stage
c) Both stages simultaneously
d) Neither stage

Answer 1

In MIPS pipelining, ALU operation results are available after the execution stage, not the memory stage. The MIPS pipeline consists of five stages, and the execution is where ALU calculations occur.

Step-by-step explanation:

In the MIPS pipeline, the results of ALU operations are typically available after the execution stage. The instruction pipeline is designed to process parts of multiple instructions simultaneously, breaking down the instruction execution into several steps. MIPS uses a classic five-stage pipeline which consists of the following stages: Instruction Fetch (IF), Instruction Decode (ID), Execute (EX), Memory Access (MEM), and Write Back (WB). During the execution stage, the ALU performs the necessary computations and arithmetic operations. Thus, the correct answer to the question is:

a) Execution stage