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Hi, as said in the title, i was wondering how could i enter the vesa mode and plot pixels

I took time to read the page on the iki but i still dont understand :/

For the ones ho are interested, here is the source code : https://github.com/AlexandreRouma/PenutOS


Thanks for your help

Since you've read the wiki, which method do you plan to use and what about it don't you understand?

Well, since I want to use my own bootloader, I want to change it at startup (just before entering P-Mode)

And, what I dont understand, is how to plot a pixel after a changed the mode (i successfully change to 800 x 600 x16M) but i doesn't want to display anything so i assume i didn't change the mode correctly :/

The VESA tells you to use three functions, one to get a list of modes, one to get information about a specific mode (to see if it is what you want), and one to set a mode, including full pseudocode. To what extent is that insufficient?

In addition, you'll know setting the mode works if the screen gets cleared.

VESA says use function 0x4F01 to get the address of the framebuffer. You then write to the framebuffer to display pixels.
EDIT: Are you sure bit 14 (value 0x4000) of BX is set when you call function 0x4F02? You need to enable the linear frame buffer.