SidonX86 - A simple hobby OS

[Nytro]

[h=1]SidonX86 - A simple hobby OS[/h][h=3]by captmicro[/h]

I'm new the the forums (though I browse alot) so I figured I'd post some content!

This is my hobby OS I've been working on for the past year or so on and off when I have free time, it's still nothing near complete.

It doesn't have paging at the moment but I'm reading up about it and attempting to get it working on another OS before I implement it for this.

It has memory allocation (blocks only), a text-mode screen library, a minimal c standard library (written by myself, and I have to say it's not the best), a serial port library, and a simple interrupt manager.

So far the only applications are a simple terminal, a half-working subleq OISC, and a hex editor (the only really decent app so far) that was ported from my xbox1 hex editor.

I'm in the process of writing a transistor design and simulation tool for it, which is something I've really wanted to do for a long time, so expect that soon.

One thing that really needs to be done is a disk interface or some sort of in-memory file system so I can load applications without having to compile them into the OS. I've had a go at it once but never tested it (due to not having a file system to load a binary from), so it might just work (see kernel/binldr/elf.c for the code). I have implemented loading apps over a serial port in another OS, but it's probably the WORST idea I ever had.

As for the startup screen, don't mind it. This OS was intended to be my entry into low-level TCP/IP stack programming but I haven't gotten that far yet. Once I get a file system working I will probably start on the ethernet card driver and TCP/IP stack.

Feel free to do whatever you want with this OS, just please credit me (except the bootloader, I barely wrote any of it).

NOTE: you need mingw or some form of gcc, ld, and objcopy to use the build_kernel.bat script. NASM is included in the download

splash screen:

and the only decent app, the hex editor (it actually has quite a lot of features for a terminal hex editor!):

[h=4]Attached Files[/h] likedev.zip 291.33K

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