Bonus Info: Basekernel Process Implementation

(This is not required information, but may be of interest if you want to explore more.)

Here are some places in Basekernel where you can see how processes are implemented.

• kernel/process.h describes the states of a process, and struct process is the equivalent of the Process Control Block (PCB).
• kernel/process.c contains the current pointer to the currently-running process, as well as the ready_list of processes, and the grave_list of completed processes.
• process_switch has the (surprisingly simple) context switch code, which pushes all the current registers, switches the stack pointer, selects a new process, and then pops all the registers. Note that this (simple) kernel just runs whatever process is next in the list.