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os-k/boot/loader/multiboot/check.inc
Adrien Bourmault 3b5cb12a7d Revert "Revert "The bug is now fixed. We can focus on the elf loader""
This reverts commit 18179baec01c5587248fbbb06a7d02335a2ea00f.
2019-03-06 20:06:11 +01:00

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PHP

;=----------------------------------------------------------------------------=;
; GNU GPL OS/K ;
; ;
; Desc: Multiboot useful functions ;
; (x86_64 architecture only) ;
; ;
; ;
; Copyright © 2018-2019 The OS/K Team ;
; ;
; This file is part of OS/K. ;
; ;
; OS/K 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. ;
; ;
; OS/K 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 OS/K. If not, see <https://www.gnu.org/licenses/>. ;
;=----------------------------------------------------------------------------=;
; ---------------------------------------------------------------------------- ;
; Multiboot check function to ensure we are launch by GRUB ;
; ---------------------------------------------------------------------------- ;
MB_check:
cmp ecx, MB_GRUB_MAGIC ; The magic number must be in ecx
jne .no_MB
ret
.no_MB:
mov ax, "01" ; ERROR 01 : No multiboot
jmp Error