CODEWITHSUNDEEP
cassemblykernelnasmbootloader
user701329
user701329

Reputation: 127

How would I write a bootloader to load a c kernel?

I am learning NASM as I write bootloaders. So far I have a hello world bootloader. I want to know how to link a c program to it and have the bootloader load it into memory and start executing it's entry point function. I need NASM code as I am a NASM n00b. Thank you very much for you help.

EDIT: Basically I need to know how to link the c program and I need NASM code to tsrat it's entry point function. Any gotchas I should know about?

Upvotes: 9

Views: 5777

Answers (2)

Necrolis
Necrolis

Reputation: 26181

Although this tutorial is for C++, its the exact same procedure (the tutorial lists the parts that are C++ specific, which are just the static ctors & dtors).

when ever your are having problems in this area, osdev.org generally has the answer or a tutorial

Upvotes: 7

Ahmed Masud
Ahmed Masud

Reputation: 22412

There are tons of gotchas about booting a kernel:

Here is a good resource http://linuxgazette.net/issue77/krishnakumar.html

that should get you started.

Upvotes: 2

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