Nice work! Looks like most of the basics are covered, and meanwhile in my current kernel the RISC-V entrypoint is >700 lines (of C) just to get to the arch-independent entrypoint!

I was just looking around for your input/output code, I don’t know zig but I expected to find putChar in kernel.zig based on the import in common.zig, but I don’t see it, should I be looking somewhere else? I didn’t see any simple command line processing either as mentioned in the README?

Mostly just looking around since your README mentioned VGA (and you seem to have a BIOS boot) which struck me as interesting on a RISC-V project, I was curious if you were actually using the SBI routines or had actually mapped in a VGA text mode buffer?

Hi botirk, really interesting project!

If I build the project what is the output format and how could configure things to boot it?

I know how to this with IMG and ISO files of course but not sure what to do with the build output if it's an executable?

Also any insights into whether this would also boot on an ARM machine? Thanks!

Curious: is it 1k lines of zig total with no libraries or 1k lines of zig with libraries?

Nice project! I'm more accustomed to building and running these using QEMU/VirtualBox (which I understand you can do with here). But what's going on when I build and execute it under the host OS? Is it also running in userspace?