My early thoughts were to re-imagine an OS on hardware from the early 80’s although my initial aim was older style hardware - the '816 was about in 1984 but we did have the 68K and 8086 by then and I used a fine multi-tasking command-liney OS on a 32-bit ‘mini’ with 256KB of core in the late 70’s that supported it’s own compiler… The higher level OS is written in BCPL and there is a small assembly shim to launch the BCPL system which uses the underlying OS to load from storage. There are 2 levels of OS The native one is written in assembler and provides an Acorn MOS like interface to the hardware with a simple CLI. It’s nothing special right now, just a few retro style things on modern (if period) hardware. I have a little retro 65c816 SBC with 256KB of RAM which I’m writing a little OS for. I thought I’d just pop this here - for thought… Feel free to expand on it, or go off at a tangent as you need! Prompted by the recent Pi Pico thread which talked about FUZEix, then Unix, lack of C compilers, etc.
