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Hi, I wonder if I can draw a pixel without assembly, I don't know anything about assembly, there's no source to learn, I just clone the Meaty Skeleton then start writing C, oh right. A few days ago I ask how to write memory management, I manage to make it works , the point is I just write everything in C, not even a single assembly code. So I can't manage to follow this tutorial as it is requires in this tutorial

https://wiki.osdev.org/User:Omarrx024/VESA_Tutorial

Anyways I have another account is Chu_Meo_E_Then, I sign in this account in another computer then I get blacklisted so I have to use create another account

ShyLittleMeowMeow wrote: ↑Sat Feb 01, 2025 10:48 pmI don't know anything about assembly,

You need to learn at least a little bit of assembly if you want to write an OS.

ShyLittleMeowMeow wrote: ↑Sat Feb 01, 2025 10:48 pmSo I can't manage to follow this tutorial as it is requires in this tutorial

Forget that tutorial. You're using Multiboot, so you can edit your Multiboot header to request a framebuffer. You'll find the address of the framebuffer in the boot information structure. You don't need to write any assembly to do that.

ShyLittleMeowMeow wrote: ↑Sat Feb 01, 2025 10:48 pmAnyways I have another account is Chu_Meo_E_Then

An account by that name doesn't exist. There is an account named "ChuMeoEThen" but it doesn't appear to be banned.

An account by that name doesn't exist. There is an account named "ChuMeoEThen" but it doesn't appear to be banned.

True, I don't know why but, I get blacklisted and thanks

Sorry for annoying but I don't understand what do you mean by "edit your Multiboot header to request a framebuffer" so I hope you can explain it to me

ShyLittleMeowMeow wrote: ↑Sat Feb 01, 2025 11:22 pmI don't understand what do you mean by "edit your Multiboot header to request a framebuffer"

Set bit 2 of the flags and fill in whatever you want for mode_type, width, height, and depth. You can read more about it here.

Where I can set bit 2 of the flag ?

Read about the Multiboot header in the specification. Any good C tutorial or book will teach you how to manipulate individual bits using the bitwise logical operators.

This is essential knowledge that you need to master before proceeding.

So after awhile trying, I set flags into
in boot.S and everything goes black, there's no text. is it still okay ?

Of course. This way, you request a framebuffer, so the screen is cleared and switched to graphics mode, and now you can draw to the framebuffer.

thanks you guys alot

yea and now I don't know how to draw a pixel

Informations here should help you: https://wiki.osdev.org/Drawing_In_a_Lin ... ing_Pixels