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boot.asm
37 lines (33 loc) · 1.05 KB
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boot.asm
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; Copyright 2018 rOSty team
; This file is part of rOSty.
; rOSty is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
; rOSty is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
; You should have received a copy of the GNU General Public License
; along with rOSty. If not, see <http://www.gnu.org/licenses/>.
; multiboot2 header
; documentation: https://www.gnu.org/software/grub/manual/multiboot2/
magic equ 0xE85250D6
architecture equ 0
header_length equ header_end - header_start
section .header
header_start:
dd magic
dd architecture
dd header_length
dd -(magic + architecture + header_length)
; end tag
dw 0
dw 0
dd 8
header_end:
section .text
global start
start:
extern kernel_main
call kernel_main