This seems a little too primitive. If you want to learn about things like preemptive multi-threading, virtual memory etc... you might be better served looking

This seems a little too primitive. If you want to learn about things like preemptive multi-threading, virtual memory etc... you might be better served looking at something like Minix or XINU. Not to mention that C code is going to be easier to wrap your head around than all assembler. http://www.cs.purdue.edu/research/xinu.html http://www.cs.purdue.edu/research/xinu.html http://www.cs.purdue.edu/homes/dec/xsoft.html http://www.cs.purdue.edu/homes/dec/xsoft.html http://www.minix3.org/ http://www.minix3.org/