creating your own os?

Kevinaz · 06-05-2007, 08:35 PM

I'm just trying to make a small os on a floppy disk that I can call my own. I don't want a modified windows or linux. in fact, I found a tut that uses the debug console in windows. maybe someday I'll learn how to make a simple gui fo my os, but for now this is all I want to do.

The only info i'm looking for is, what is the basic process. What do you have to write first? The boot loader which loads actual os or what? I really don't know all this stuff, and I don't mean to sound rude, but instead of making suggestions as to what I should do instead of on os, or that it's too hard, how about some answers to my questions.

Yes I know it will take a LONG time to code an os. I'm willing to do it.

Kevinaz

Draco Malfoy · 06-07-2007, 08:41 PM

Well, you can start by writing a really simple one by writing directly to the bootsector of a floppy disk. But you'll soon find you run out of space. Also, the disk will have no usable filesystem. Then you can expand by using JMP. You can use BIOS interrups to write text on the screen. It's really not much worse than programming DOS programs. Then try switching into Protected mode, for access to more memory.

06-05-2007, 08:35 PM	#11 (permalink)
Kevinaz Bronze Member Join Date: Jan 2007 Posts: 62	I'm just trying to make a small os on a floppy disk that I can call my own. I don't want a modified windows or linux. in fact, I found a tut that uses the debug console in windows. maybe someday I'll learn how to make a simple gui fo my os, but for now this is all I want to do. The only info i'm looking for is, what is the basic process. What do you have to write first? The boot loader which loads actual os or what? I really don't know all this stuff, and I don't mean to sound rude, but instead of making suggestions as to what I should do instead of on os, or that it's too hard, how about some answers to my questions. Yes I know it will take a LONG time to code an os. I'm willing to do it. Kevinaz __________________ Amd Athlon 2800+ 1.60ghz maxtor 20gb elitegroup 760gx-m motherboard 1 gig ram 93% of teenagers listen to rap. If you are one of the 7% that still listens to real music, post this in your signature.

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06-07-2007, 08:41 PM	#12 (permalink)
Draco Malfoy Bronze Member Join Date: May 2007 Posts: 75	Well, you can start by writing a really simple one by writing directly to the bootsector of a floppy disk. But you'll soon find you run out of space. Also, the disk will have no usable filesystem. Then you can expand by using JMP. You can use BIOS interrups to write text on the screen. It's really not much worse than programming DOS programs. Then try switching into Protected mode, for access to more memory.