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 The Keyboard 
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Joined: Sat Jul 25, 2009 6:10 am
Posts: 112
Location: United Kingdom
Post The Keyboard
First of all, I would to apologise for my absence - I have been busy with other stuff (and still technically am). Anyway, down to business:

How do I recieve keyboard input using C? Please remember that I am not using any standard includes (I have to code these myself). I followed the examples in bkerndev, but it wouldn't compile.

From what I understand I need to setup the IDT, ISRs and IRQs before I can take input? Does anyone have any tutorials/help please?

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Michael Sammels

OS Developing is 10% luck, 20% skill, 15% concentrated power of will. 5% pleasure, 50% pain, and a 100% reason continue the game.


Sat Oct 17, 2009 6:06 pm
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Joined: Wed Oct 14, 2009 9:39 am
Posts: 198
Location: United States
Post Re: The Keyboard
You need to first setup the GDT, then the IDT, and in those you will setup your ISRs and IRQs. After that, you are going to have to attach the keyboard to an IRQ. I don't exactly remember what the suggested is, but for now I have attached mine to IRQ1. If you want, I can work up a tutorial for the keyboard stuff for everyone and post it. It will take me a few days since I have other things, but it would probably be better than me just posting code here and you don't learn. <(o.o)>

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Charles Timko
push %esp ;Musings of a computer addict


Sat Oct 17, 2009 8:05 pm
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Joined: Sat Jul 25, 2009 6:10 am
Posts: 112
Location: United Kingdom
Post Re: The Keyboard
I have a GDT setup in ASM. A tutorial would be handy, Google is not being friendly.

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Thanks,
Michael Sammels

OS Developing is 10% luck, 20% skill, 15% concentrated power of will. 5% pleasure, 50% pain, and a 100% reason continue the game.


Sat Oct 17, 2009 9:18 pm
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Joined: Sat Jul 25, 2009 7:44 am
Posts: 274
Location: United Kingdom
Post Re: The Keyboard
Michael, start loking at OSDev.org, its a great site and until we have the information here, that will prob be your main resource for os devving.

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Kieran C G Foot


Sun Oct 18, 2009 10:58 am
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Joined: Sat Jul 25, 2009 6:10 am
Posts: 112
Location: United Kingdom
Post Re: The Keyboard
OSDev.org is where I pulled together what I have so far :)

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Thanks,
Michael Sammels

OS Developing is 10% luck, 20% skill, 15% concentrated power of will. 5% pleasure, 50% pain, and a 100% reason continue the game.


Sun Oct 18, 2009 11:11 am
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Joined: Sat Jul 25, 2009 7:44 am
Posts: 274
Location: United Kingdom
Post Re: The Keyboard
ok mate, well Im sure you have all of the neede information already, keep trying mate and it will all come together :)

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Thank you for reading,

Kieran C G Foot


Sun Oct 18, 2009 11:13 am
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Joined: Sat Jul 25, 2009 6:10 am
Posts: 112
Location: United Kingdom
Post Re: The Keyboard
I think OSDev lacks IDT tutorials :P So does everywhere, tbh.

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Thanks,
Michael Sammels

OS Developing is 10% luck, 20% skill, 15% concentrated power of will. 5% pleasure, 50% pain, and a 100% reason continue the game.


Sun Oct 18, 2009 11:14 am
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Joined: Wed Oct 14, 2009 9:39 am
Posts: 198
Location: United States
Post Re: The Keyboard
Check out this tutorial. This will help you with the IDT, IRQ, and ISRs

http://jamesmolloy.co.uk/tutorial_html/index.html

This is what I used to help me start my kernel out in C and then I converted it to C++.

Charles

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Charles Timko
push %esp ;Musings of a computer addict


Sun Oct 18, 2009 12:26 pm
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Joined: Sat Jul 25, 2009 6:10 am
Posts: 112
Location: United Kingdom
Post Re: The Keyboard
Thanks, I'll take a look.

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Thanks,
Michael Sammels

OS Developing is 10% luck, 20% skill, 15% concentrated power of will. 5% pleasure, 50% pain, and a 100% reason continue the game.


Sun Oct 18, 2009 12:27 pm
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Joined: Sat Jul 25, 2009 7:44 am
Posts: 274
Location: United Kingdom
Post Re: The Keyboard
Mike mate, ill be on msn later, give me a buzz if you get stuck with the IDT :D

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Thank you for reading,

Kieran C G Foot


Mon Oct 19, 2009 7:33 am
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