A RISC-V Pipeline Processor Implementations

Lab Overview

Lab 1: Iterative Integer Multiplier

• Objective: Implement and evaluate two versions of an integer iterative multiplier: a baseline fixed-latency design and an alternative variable-latency design.
• Key Concepts: Verilog modeling, abstraction levels, design principles, and agile methodologies.

Lab 2: Pipelined Processor

• Objective: Design two pipelined processor microarchitectures for the TinyRV2 ISA, focusing on stalling and bypassing data hazards.
• Key Concepts: Instruction set architecture, pipelined processor microarchitecture, data and control hazards.

Lab 3: Cache

• Objective: Enhance the pipelined processor with a data cache (D-cache) and an instruction cache (I-cache), implementing direct-mapped and set-associative caches.
• Key Concepts: Memory system design, cache associativity, cache controllers.

Lab 4: Branch Predictors

• Objective: Implement three branch prediction mechanisms (Bimodal, Global, GShare) to optimize processor throughput.
• Key Concepts: Dynamic branch prediction, predictor design and evaluation.

Repository Structure

Each lab is contained in its own directory, structured as follows:

• lab1_imul/ - Iterative Integer Multiplier
• lab2_proc/ - Pipelined Processor
• lab3_cache/ - Cache Implementation
• lab4_branch/ - Branch Predictors

Within each lab directory, you will find:

• Verilog source files (*.v)
• Testbenches (tb_*.v for system-level tests, utb_*.v for unit tests)
• A Makefile for running simulations and tests
• A configuration file (default.config) for testbench reuse

Getting Started

To run any lab simulation:

1. Clone this repository to your local machine.
2. Install Verilator
3. Navigate to the desired lab directory.
4. Use the provided Makefile to run simulations and tests. For example:

cd lab1_imul/
make run-all