"LEG Processor for Education" at EWME 2016

Daniel D. Johnson — Mon, 08 Aug 2016 00:00:00 GMT

Last semester, I was part of the Clay Wolkin Fellowship at Harvey Mudd. The fellowship consists of a group of students (mostly Engineering majors, but some CS also) who work on interesting electrical-engineering-focused projects. The project I worked on was the "LEG Processor", an open-source pipelined processor that implements the ARMv5 instruction set and can boot the Linux kernel (3.19) in simulation. We recently published a paper describing our work in the European Workshop for Microelectronics! You can read the paper here. Or read on for a high-level overview of the work I did on the project.

Modular Conway's Game of Life in Logisim

Daniel D. Johnson — Mon, 13 Oct 2014 23:35:11 GMT

In CS 42 we are starting a unit on low-level computing. As a part of that, we are using a program called Logisim, a program that allows you to build virtual circuits. Of course, after experimenting with it, I had some ideas. So, without further ado, my modular Conway's Game of Life implementation in Logisim!

"Modular"? How so? Basically, I designed the circuit as a grid of cells. Each cell is a square subcircuit, and they connect to each other on the sides. There is also a clock signal that is propagated through the grid to synchronize the updates.

Daniel D. Johnson (Posts about circuit)

"LEG Processor for Education" at EWME 2016

Modular Conway's Game of Life in Logisim