;=----------------------------------------------------------------------------=; ; OS on Kaleid ; ; ; ; Desc: Multiboot header ; ; (x86_64 architecture only) ; ; ; ; ; ; Copyright © 2018-2020 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 . ; ;=----------------------------------------------------------------------------=; ;; MULTIBOOT HEADER MB_AOUT_KLUDGE equ 0 << 16 ; if we are not an ELF executable MB_ALIGN equ 1 << 0 ; Ask to align loaded modules on page boundaries MB_MEMINFO equ 1 << 1 ; Ask to provide memory map MB_VIDEOINFO equ 1 << 2 ; Ask to provide video infos MB_VIDEO_MODE equ 0x1 ; Text mode MB_VIDEO_WIDTH equ 80 MB_VIDEO_HEIGHT equ 43 MB_VIDEO_DEPTH equ 0x0 MB_HEADER_MAGIC equ 0x1badb002 MB_GRUB_MAGIC equ 0x2badb002 MB_HEADER_FLAGS equ MB_AOUT_KLUDGE|MB_ALIGN|MB_MEMINFO|MB_VIDEOINFO CHECKSUM equ -(MB_HEADER_MAGIC + MB_HEADER_FLAGS)