Now that I’ve got a bit of time, I thought I’d do a debrief of a couple of cool projects that I’ve worked on this past year. First up, PseudOS, a baremetal Raspberry PI OS that I wrote with some friends for our Software Systems final project.
(We were really sleep deprived when making the final video, apologies for any strange noises we make.)
It doesn’t look really amazing, because we didn’t really implement any OS features other than UART and a basic calculator program. However, we did do this all baremetal. What is baremetal, you ask? Well, it means that the code we wrote interacted with the RaspPi at the hardware level. We modified an Assembly boot file to give us control over the hardware registers, and wrote a kernel in C to provide the actual OS functionality. This website was an amazing resource for us through the whole process.