OSDev.org

For the past few days I have been trying to code up a PCB.
I didn't find a tutorial too on that matter.

http://en.wikipedia.org/wiki/Process_control_block
http://www.osdever.net/tutorials/soft_ts.php
http://www.osdev.org/wiki/Processes_and_Threads

If you know what you want from your OS design and you have tested a task switching implementation, you will know what you want and need in your PCB. Once you get to a certain level in OS design, you will find that you need to docs and other source code to get an idea of how things are done, rather than relying on tutorials. Do you know what you want from your tasking system yet?

For future reference, you are asking how to implement something, so this should really be in the OS Development forum. Please do not cross-post there as a result of me saying this - wait for a mod to move the thread.

Cheers,
Adam