That's why it's important to choose simpler systems. I've been having fun writing a Forth-based Z80 operating system for the TI-84+ calculator[1]. There isn't

That's why it's important to choose simpler systems. I've been having fun writing a Forth-based Z80 operating system for the TI-84+ calculator[1]. There isn't too many moving parts and there are many "toy" systems to learn from such as one that boots up to a smiley face[2]. It's all about choice of architecture. [1] https://github.com/siraben/zkeme80 https://github.com/siraben/zkeme80 [2] https://www.ticalc.org/archives/files/fileinfo/442/44227.html https://www.ticalc.org/archives/files/fileinfo/442/44227.htm...