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 Post subject: [Free Book] A Journey in Creating an Operating System Kernel
PostPosted: Fri Nov 18, 2022 11:49 pm 
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Joined: Fri Nov 18, 2022 11:43 pm
Posts: 1
Hello Everybody,

I've released a free book under the title "A Journey in Creating an Operating System Kernel: The 539kernel Book" which teaches the reader how to create an operating system's kernel called 539kernel. The reader will learn how to implement multitasking, paging and a filesystem through this book. 539kernel is a simple x86 32bit educational kernel which has been written especially for this book.

The book is available here: https://539kernel.com/ you can read it online or as a PDF.

Regards.


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 Post subject: Re: [Free Book] A Journey in Creating an Operating System Ke
PostPosted: Sun Nov 27, 2022 7:52 pm 
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Joined: Mon Mar 25, 2013 7:01 pm
Posts: 4517
Your example bootloader code assumes CS will be 0. This is not a safe assumption and it will cause your example bootloader to fail on some hardware and some emulators (particularly older versions of QEMU).


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