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blog_os/src/arch/x86_64/multiboot_header.asm
2015-08-10 12:56:36 +02:00

30 lines
1017 B
NASM

; Copyright 2015 Philipp Oppermann
;
; Licensed under the Apache License, Version 2.0 (the "License");
; you may not use this file except in compliance with the License.
; You may obtain a copy of the License at
;
; http://www.apache.org/licenses/LICENSE-2.0
;
; Unless required by applicable law or agreed to in writing, software
; distributed under the License is distributed on an "AS IS" BASIS,
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
; See the License for the specific language governing permissions and
; limitations under the License.
section .multiboot
header_start:
dd 0xe85250d6 ; magic number (multiboot 2)
dd 0 ; architecture 0 (protected mode i386)
dd header_end - header_start ; header length
; checksum
dd 0x100000000 - (0xe85250d6 + 0 + (header_end - header_start))
; insert optional multiboot tags here
; required end tag
dw 0 ; type
dw 0 ; flags
dd 8 ; size
header_end: