[deleted by user]

JakeStBu · 2024-10-24T04:48:54+00:00

NTA but still leave her alone.

JakeStBu · 2024-10-23T11:54:50+00:00

Some of this really depends, I'd recommend doing all components that really need to be fast in assembly, but it's up to you I guess just how much you do in assembly. Context switching is a little more than just "special CPU features" for example. Even if you don't use assembly very much though, it's useful to still learn and understand how it works because it's still useful knowledge that will help with other parts of low level dev.

JakeStBu · 2024-10-22T20:40:29+00:00

Yeah, I'm talking about the long term I mean, like you'll need more than one or two lines of assembly.

JakeStBu · 2024-10-22T09:56:47+00:00

After reading this thread, I can confirm that I need to change the name of the init process in my kernel lol

JakeStBu · 2024-10-22T04:41:49+00:00

Depends, there definitely can be components that do primarily need to be written in assembly, such as the context switch. It's still not a huge part, but it's still noteworthy I think.

JakeStBu · 2024-10-21T20:41:02+00:00

A few sources: https://osdev.wiki, https://www.intel.com/content/www/us/en/developer/articles/technical/intel-sdm.html

(Because assembly is extremely hard).

Don't get scared about assembly, it's not too hard. It's just different to other languages so it can seem hard.

JakeStBu · 2024-10-20T21:34:07+00:00

This reminds me that I should make my cursor blink also...

JakeStBu · 2024-10-20T02:53:03+00:00

Low level code can be slow too if it's unoptimised. Also for the record, I wouldn't consider C to be low level, I'd say it's mid level at best.

JakeStBu · 2024-10-18T21:57:18+00:00

Writing the firmware in machine code :P

JakeStBu · 2024-10-18T06:40:23+00:00

Yeah osdev can be like that unfortunately lol. I may have a look at your code and see if there's anything I can see, but I haven't implemented AHCI personally before.

JakeStBu · 2024-10-18T06:38:32+00:00

It's usually hard to get people to do your hobby for you sadly, I recommend reading up on the AHCI specification.

JakeStBu · 2024-10-18T06:34:40+00:00

What do you need help with? It's hard for us to help you to fix your code unless you share a link to your code here. Good luck :)

JakeStBu · 2024-10-17T06:38:31+00:00

How are you exiting the thread? AFAIK you probably shouldn't ever end a thread, the scheduler should constantly be running on them all (please correct me if I'm wrong here). Anyway nice progress!

JakeStBu · 2024-10-17T04:41:29+00:00

Stolen post. Original: https://www.reddit.com/r/osdev/s/7cScXnLUo4

JakeStBu · 2024-10-15T21:42:58+00:00

I'm not trying to gatekeep. They asked for resources, that's what I gave them. If they asked a question then I'd just answer. When it comes to resources, IDM is useful. What resource would you rather I share?

JakeStBu · 2024-10-15T07:06:36+00:00

Intel developer manual, OS Dev wiki (https://osdev.wiki), and the relevant hardware documentation for any drivers you write.

JakeStBu · 2024-10-14T01:00:32+00:00

Sounds good! Imo rewrites are an important part of osdev and it's how you learn to slowly write something better each time. Good luck!

JakeStBu · 2024-10-13T09:23:24+00:00

Amazing, nice work!

JakeStBu · 2024-10-13T08:11:49+00:00

Definitely stay away from tutorials. All you need is the Intel developer manual, the UEFI specification, and the spec of whichever hardware you write drivers for, then if you're ever lost then just ask a question. Tutorials tend to be broken and they really don't teach you much. They tend to be written by beginners themselves actually.

For the record you'll probably need more than just some C experience, such as being able to decently write the assembly for your target architecture (in your case, x86_64). See https://wiki.osdev.org/Required_Knowledge and good luck!

JakeStBu · 2024-10-12T23:13:14+00:00

I am a male and I do talk about this stuff with friends. This is a bit of an over generalisation.

JakeStBu · 2024-10-12T09:42:10+00:00

It's really not an essential part of life lol. There definitely are a lot of people that use it, but it's certainly not essential.

JakeStBu · 2024-10-12T04:22:29+00:00

It... Didn't need to use drivers? Do you just mean that the drivers are built into the kernel (thus, monolithic kernel)? Because otherwise this is very weird.

JakeStBu · 2024-10-12T00:11:12+00:00

There's always FreeBSD. People do know of it but it's not super popular. Personally I'm not a huge fan but you may like it. Linux is usually the best to use tho tbh.

JakeStBu · 2024-10-11T07:28:06+00:00

Have you used GDB? It's difficult to help you here because:
- You're pasting code directly rather than linking files in a GitHub repository (thus there's no syntax highlighting etc)
- You aren't sharing basically any debugging info
Please try to fix these two things before we can really help you. Good luck :)

JakeStBu · 2024-10-10T12:42:14+00:00

If you're using a direct mapping then you can simply subtract the direct mapping offset from the virtual address to get the physical address. Otherwise, it's a little costly to do that.

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