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Add multiboot header and boot.asm

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Philipp Oppermann
2017-04-11 09:01:14 +02:00
parent 79d1032d82
commit 3a05ccd994
2 changed files with 23 additions and 0 deletions
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8
src/arch/x86_64/boot.asm Normal file
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global start
section .text
bits 32
start:
; print `OK` to screen
mov dword [0xb8000], 0x2f4b2f4f
hlt

15
src/arch/x86_64/multiboot_header.asm Normal file
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section .multiboot_header
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: