OSDev.org

Hi ya'll

I'm on my bootloader and have run in to some trouble. I've done tons of research on the net not to mention reading half of "Operating systems: Design and Implamentation" yet I still getting stuck:). I have made and loaded my GDT turned of Interupts and other stuff.
My problem is the wonderful triple fault
In the code:
mov eax, cr0
or al, 1
mov cr0, eax
if I comment out the last line my bootloader just hangs but does not triple fault other wise it does.
I'm just realy stuck and lookin for some hints of what I might try.

Thank you
Frank

Could you post the whole code?

Maybe your GDT's bad...

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I thank you for your help thus far. What were you able to determine about my code? And thank you for a look at your code I nothing else I'll try to modify mine using yours as a guide if thats all right with you.

Thank you again
Frank

Now I really must begin to wonder? I booted your up and it to reset the computer. Could that be because I had no kernel for it to load or would that be more a physical system problem?

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Did that work?

Here is your problem: Change it to: Hope this helps!

I guess it's time for me to read some more on GDT stuff...

Thank you again your code works now I just have to play with it a bit and make sure that I understand it operation an I'll be all set. But I look forward to the challange. Thank you again for your help.

Frank

With respect to your boot loader. how do you init, the segments to there respective selectors after the
jmp $
I seams that If I change that to
jmp $ + 1 I triple fault the CPU
So where do you go from this?

Thanks for any ideas:)
Frank

You are jumping to a unknown place...that's why...

Also...after there...you load your C kernel if you want to program your OS in C.