Structure of an ELF file

"Executable and Linkable Format", or ELF, is a format used by most Unix systems today for loading programs into memory. It turns out that there's a reason this format is useful, and it's useful for our project as well.

Patreon BBC Micro level supporters:
Yehuda T. Deutsch

Code available on github: https://github.com/CompuSAR/control_cpu
Support the project on Patreon:   / compusar  
Discord server invite:   / discord  

Table of contents:
00:00 Two stage boot - why?
01:01 Second stage loader
02:40 Generating the boot loader
04:10 Second stage differences
04:35 Custom load format
06:37 ELF file structure
08:03 Boot loader actual code
11:20 Changing the OS code