This repository contains code written for my operating systems course for the DLXOS simulated UNIX like operating system. It contains a lottery schedular I designed for the system that contains a program to generate test processes with various priority levels. This repository also has a program to demonstrate mutual exclusion and a kernal level trap for DLXOS. More informations about the DLXOS operating system can be found on their website at https://users.soe.ucsc.edu/~elm/Software/Dlxos/dlxos.shtml