Loonix.technigga.net

By beginner I mean beginner on OS programming. You should know some assembly, theory of segmentation, usage of int's and other basic stuff, and you probably know a HLL (pascal, c, c++ etc..)

I recently started developing my own OS. The purpose is to learn only, at least for now. This place contains links to stuff, and various docs that I write while working. That means that this is not for making a usefull OS.

Docs by other people -Creating a PM OS - Requires more knowledge than at least I have.. -Protected mode tutorial - Includes code for a modeswitcher. Quite basic and good -Protected and real modes - Much info on them, also requires much knowledge -PM programming tutorial - Basics on PM programming -Debug.com tutorial - Seems good to me, havent read it yet. -Assembly tutorial - Think this is a good one -Assembly tutorial - Think this is good too :) Links -www.osdever.net - very good site about osdev (i also recommend their irc chat) -Chris Lattner's OS page - Alot of OS resources. very good -www.menuetos.org - MenuetOS is a 32bit gfx OS, opensource, written in asm. Fits on a floppy! -www.osfaq.com - I haven't checked this out to much -www.osdev.org - same as above Programs -Old norton utilities - Has sectorwrite, hexedit etc.. but does NOT work well with fat32, big hd's etc.. but can work with floopies. I used it.. in lack of something better. -sector.zip - Tool to read/write your code to sectors on the diskette (and only diskette). For help about it, check the source.. made by me -rawrite.exe - Writes image files to diskettes. Better than sector.zip .. but you can't write directly to any sector except the bootsector note; I had to remove tasm as it's not freeware ;) I use tasm 2.01 and tlink 7.0 .. Search the net, or use a fileshare prog. Oh, and even better: use nasm! It's free. But unfortunately, I have used tasm so far, so some of the things you find here is meant for tasm.

Plans I have just made a bootsector that switches to PM, and jumps to a kernel written in c, turns on interrupts and presents a very simple shell. That is all, and I will probably never get any further on this little project. It's quite dead :) The plans I had included making a kernel in FreePascal, somehow. Docs I wrote -mindebugtut.txt - Very short, very usefull info about debug -osstart.txt - Teaches you to make a hello-world OS and a bit more -combase.asm - Shows how to compile a .com file in tasm 2.01 -bootsect.asm - My first bootsector! [note; FIRST .. don't laugh to much] Loads sector 2 as kernel -proctut.asm - Very commented code showing stack-keeping on procedure calls, in assembly -pmwithc.zip - boot into protected mode, and jump to a kernel written in c Finally NixOS, my realmode OS project, is no more... I started a new OS in protected mode. Quite honestly, I miss realmode a bit, since its so simple. But hey, thats life.. or something. I'm writing this on 6th october 03.. on the 13th I'm going back to school, so I have about one week to code on this. That's it, before christmas... Which means that I wont get very far on this, unfortunately.

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