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Let's write a kernel

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  Let's write a kernel RS Wood <rsw@therandymon.com> - 2014-04-15 13:25 +0000
    Let's write a bootloader, too RS Wood <rsw@therandymon.com> - 2014-04-16 15:41 +0000
      Re: Let's write a bootloader, too "James Harris" <james.harris.1@gmail.com> - 2014-04-16 18:44 +0100

#2392 — Let's write a kernel

Let's write a kernel:

http://arjunsreedharan.org/post/82710718100/kernel-101-lets-write-a-kernel

Interesting article, also linked at hackernews.


Kernel 101 – Let’s write a Kernel
by Arjun Sreedharan

Hello World,

Let us write a simple kernel which could be loaded with the GRUB
bootloader on an x86 system. This kernel will display a message on the
screen and then hang.

How does an x86 machine boot

Before we think about writing a kernel, let’s see how the machine boots
up and transfers control to the kernel: ...

<snipped>

-- 
RS Wood <rsw@therandymon.com>

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#2408 — Let's write a bootloader, too

On Tue, 15 Apr 2014 13:25:38 +0000
RS Wood <rsw@therandymon.com> wrote:
> Let's write a kernel:
> http://arjunsreedharan.org/post/82710718100/kernel-101-lets-write-a-kernel

How cool - here's the logical followup, also from hackernews:

http://www.reinterpretcast.com/creating-a-bare-bones-bootloader

CREATING A BARE BONES BOOTLOADER
PUBLISHED APRIL 16, 2014 BY JOE SAVAGE
Upon hearing the word 'bootloader', many people cower in fear. It seems like a scary low-level thing that's very easy to mess up. To dispel some of this fear, I'm going to walk through making a super simple bootloader/OS, assuming only a basic level of familiarity with assembly language and how computers work.

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#2410 — Re: Let's write a bootloader, too

"RS Wood" <rsw@therandymon.com> wrote in message 
news:20140416154100.0886801a.rsw@therandymon.com...
> On Tue, 15 Apr 2014 13:25:38 +0000
> RS Wood <rsw@therandymon.com> wrote:
>> Let's write a kernel:
>> http://arjunsreedharan.org/post/82710718100/kernel-101-lets-write-a-kernel
>
> How cool - here's the logical followup, also from hackernews:
>
> http://www.reinterpretcast.com/creating-a-bare-bones-bootloader
>
> CREATING A BARE BONES BOOTLOADER
> PUBLISHED APRIL 16, 2014 BY JOE SAVAGE
> Upon hearing the word 'bootloader', many people cower in fear. It seems 
> like a scary low-level thing that's very easy to mess up. To dispel some 
> of this fear, I'm going to walk through making a super simple 
> bootloader/OS, assuming only a basic level of familiarity with assembly 
> language and how computers work.

FYI the following newsgroup is focussed on os development (including 
bootloaders).

  alt.os.development

There are some other potentially useful groups too.

  comp.lang.asm.x86
  alt.lang.asm
  alt.os.assembly

A lot of assumptions people make have been found to be wrong. The archives 
of alt.os.development hold a wealth of detailed info.

James

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