TCNJ - Verlog Projects

What are these?

These are completed and functional Verilog projected created while attending The College of New Jersey. There are 8 Labs in total across two semesters. They include Arithmatic Logic Unit designs, Multi-Policy Cache Design, and LEGv8 ARM CPU.

Run Intructions

The Verilog files can be run easily in two different ways

Xilinx ISE Desktop Application

• Open Xilinx
• Load Project
• Select "Simulation" radio button
• Begin a "Simulate Behavioral Model" process
• Observe the SIM Waveform

EDA Playground Online Editor

Some of my projects will provide a link to the online compiled version on EDA. Unfortunately, EDA Playground does not provide a visualizing tool such as ISIM, so the implementation is much harder to visualize.

If you would like to run or edit my code yourself, please follow these steps to edit and run your own:

• Log in with an EDA account.
• In the Languages & Libraries tab on the left, select:
  • Testbench + Design: SystemVerilog/Verilog
  • Tools & Simulators: Icarus Verilog 0.9.7
• Copy all the implementation module code into the right text window.
• Copy all of the techbench module code into the left text window.
• Click Run at the top.
• Results will be in the Log window at the bottom.

Project Summaries

Binary Adder Implementations

Behavioral Adder (64 Bit)

The behavioral representation of a 64 Bit Adder unit. Uses a simple adding statement to take two 64 bit inputs and output a 64 bit result. Used to contrast against the other methods of creating adders. This project is broken into two files: Behavioral64BitAdder.v and Behavioral64BitAdder_TestBench.v.

Physical Look-Ahead Adder (64 Bit)

This adder is a physical-like implementation of a look-ahead adder. In contrast to the Behavioral 64 Bit Adder, this project was implemented using logic gates and cascaded modules. In order to implement 64 bits for the adder, 32 cascaded modules were wired up together. This project includes three files: PhysicalLookAheadAdder1Bit.v, PhysicalLookAheadAdder1Bit_TestBench.v, PhysicalLookAheadAdder64Bit.v, and PhysicalLookAheadAdder64Bit_TestBench.v.

Physical Ripple Carry Adder (64 Bit)

This adder is a physical-like implementation of a ripple carry adder. This adder uses a cascade of single bit adders.

Custom Instruction Processor

A custom instruction processor that runs a set of instructions according to this project description: https://owd.tcnj.edu/~hernande/Elc363/ELC363-La4-Fa13_1.pdf

Spring 2018

Java Cache Simulation

A Java implementation of OS caching. Simulates data caching using a few different algorithms

LEGv8 ARM Processor

This processor is located in the LEGv8 Processor folder. Within that folder, processor modules (stages, structures, etc) are located in CPU_Modules.v. The two tests, CPU_Test.v and Memory_Buffer_Test.v include test code for structures found in CPU_Modules.v

LEGv8 ARM with Pipelining

A verilog implementation of a processor with the ability to run a subset of instructions called LEGv8, an educational version of the ARMv8 instruction architecture. This project also implements pipelining.

LEGv8 ARM with Pipelining and Hazard Detection

An addition on the already created LEGv8 processor. This version of the project implements hazard detection.

License

All source code in Computer-Engineering-Verilog is released under the MIT license. See LICENSE for details.