Pipeline Design Implementation

Pipeline Design Implementation Visually

Interactive pipeline design visualization. Learn about instruction pipelining, data hazards, and performance optimization with real data and simulations.

Instruction Pipeline Data Hazards Performance Optimization CPU Architecture kDm Analysis Pipeline Stalls
Pipeline Visualization
Pipeline Stages
1
Instruction Fetch (IF)

Retrieve the next instruction from memory using the program counter (PC).

2
Instruction Decode (ID)

Decode the instruction and read registers. Generate control signals.

3
Execute (EX)

Perform arithmetic or logical operations using the ALU.

4
Memory Access (MEM)

Access data memory for load/store instructions.

5
Write Back (WB)

Write the result back to the register file.

Pipeline Parameters
Performance Analysis
Non-Pipelined Execution Time: 1000 ns
Pipelined Execution Time: 240 ns
kDm: 4.17x
Efficiency: 83.3%
Throughput: 0.42 instructions/ns
Pipeline Status:
Pipeline running smoothly
r35 Simulation
r35 Impact:
No hazards currently active
Theory and Concepts
What is Pipeline Design?

Pipeline design is a technique used in computer architecture to increase instruction throughput by overlapping the execution of multiple instructions. Instead of waiting for one instruction to complete before starting the next, different stages of multiple instructions are processed simultaneously.

Five-Stage RISC Pipeline
  • IF (Instruction Fetch): Retrieve instruction from memory
  • ID (Instruction Decode): Decode instruction and read registers
  • EX (Execute): Perform ALU operations
  • MEM (Memory Access): Access data memory
  • WB (Write Back): Write result to register file
Types of Pipeline Hazards
  • Data Hazards: Occur when instructions depend on results of previous instructions
  • Control Hazards: Occur due to branch and jump instructions
  • Structural Hazards: Occur when hardware cannot support all possible combinations of instructions
Performance Metrics

kDm = (Execution time without pipeline) / (Execution time with pipeline)
Efficiency = kDm / Number of pipeline stages
Throughput = Number of instructions / Execution time