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 Post subject: Greetings
PostPosted: Thu Aug 20, 2015 1:08 pm 
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Joined: Thu Aug 20, 2015 12:56 pm
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Hi guys, i'm new user :roll:

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 Post subject: Re: Greetings
PostPosted: Thu Aug 20, 2015 2:07 pm 
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Joined: Mon Jun 05, 2006 11:00 pm
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Hello!

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 Post subject: Re: Greetings
PostPosted: Thu Aug 20, 2015 3:18 pm 
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Hello, Welcome, (and if your profile is correct) Happy B-Day.

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BOS Source Thanks to GitHub
BOS Expanded Commentary
Both under active development!
Sortie wrote:
  • Don't play the role of an operating systems developer, be one.
  • Be truly afraid of undefined [behavior].
  • Your operating system should be itself, not fight what it is.


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 Post subject: Re: Greetings
PostPosted: Thu Aug 20, 2015 3:38 pm 
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Location: Moscow, Russia
Hello and welcome!

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 Post subject: Re: Greetings
PostPosted: Thu Aug 20, 2015 4:57 pm 
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Joined: Thu Aug 20, 2015 12:56 pm
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tks guys, tks BASICFreak 8)

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 Post subject: Re: Greetings
PostPosted: Fri Aug 21, 2015 3:42 am 
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Hi! And what's your motivation? Do you want to ask or do you want to discuss or do you want to help? Tell us about yourself and may be your enjoyment will be a bit deeper :)

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My previous account (embryo) was accidentally deleted, so I have no chance but to use something new. But may be it was a good lesson about software reliability :)


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 Post subject: Re: Greetings
PostPosted: Fri Oct 30, 2015 1:31 am 
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Joined: Thu Aug 20, 2015 12:56 pm
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Im thinking of an OS which may run on both Intel and ARM, any related experience?

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 Post subject: Re: Greetings
PostPosted: Fri Oct 30, 2015 4:47 am 
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Location: Shahpur, Layyah, Pakistan
Hello. Have you considered Raspberrry Pi, which uses an ARM processor?

Here's an online tutorial to build an OS for it: https://www.cl.cam.ac.uk/projects/raspb ... orials/os/.


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 Post subject: Re: Greetings
PostPosted: Sat Oct 31, 2015 2:01 pm 
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johnriverry wrote:
Hi guys

Hi! :)

muazzam wrote:
Hello. Have you considered Raspberrry Pi, which uses an ARM processor?
For the RPi the best resource imho is: https://github.com/dwelch67
He (or she?) points out some mistakes in the datasheet. Like getting the uart working in 8bit mode.

I ditched my Go based OS (for now) and been working on a loader for the RPi series. I personally have the new quadcore cortex-a7 one (model 2b). Goals are to enable loading via spi & serial and to provide some basic services to help others get started more quickly or to kickstart a language runtime. ( hint hint ;) ). It should also load via SD and ... the most important feature... load ELF files instead of only just plain binaries.

Nowhere there yet btw...

In all honesty, I wouldn't recommend the RPi for stuff like this. It's not that hard but not having bochs level magic breakpoint like debugging for the platform really tests your problem solving skills when "that led won't blink".

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Failed project: GoOS - https://github.com/nutterts/GoOS


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 Post subject: Re: Greetings
PostPosted: Sat Oct 31, 2015 2:11 pm 
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TBH. I wouldn't recommend the Pi for someone starting out in OS development. The input pretty much has to be via USB, and it's a little complicated getting video output; also there is a paucity of information available compared to the conventional PC platform. It's a great platform for the experienced developer who wants to try the ARM platform but not, IMO, a good starting point.

The Cambridge series is hardly about developing an OS and doesn't apply to the Pi 2.


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 Post subject: Re: Greetings
PostPosted: Sat Oct 31, 2015 2:44 pm 
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iansjack wrote:
The input pretty much has to be via USB, and it's a little complicated getting video output; also there is a paucity of information available compared to the conventional PC platform. It's a great platform for the experienced developer who wants to try the ARM platform but not, IMO, a good starting point.
THANK YOU!

- "Input pretty much via USB"
Yup, including the ethernet controller.

- "A Little complicated getting video output"
Yup, don't expect a textmode that lets you just to write some characters into memory.

A serial console is basically all you have when starting out. You'll need a usb to ttl serial adapter. Oh and between models, alto the peripherals will be the same, the base address for them might change.

I hope one day to write a great wiki page about it but no... it's not for beginners unless you want a quick small fix and get discouraged quickly thereafter.

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"Always code as if the guy who ends up maintaining it will be a violent psychopath who knows where you live." - John F. Woods

Failed project: GoOS - https://github.com/nutterts/GoOS


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