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Add an error function

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Philipp Oppermann
2017-04-11 14:50:00 +02:00
parent 78e86c2312
commit 5ebdd89ffb
1 changed files with 9 additions and 0 deletions
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9
src/arch/x86_64/boot.asm
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@@ -6,3 +6,12 @@ start:
; print `OK` to screen ; print `OK` to screen
mov dword [0xb8000], 0x2f4b2f4f mov dword [0xb8000], 0x2f4b2f4f
hlt hlt
; Prints `ERR: ` and the given error code to screen and hangs.
; parameter: error code (in ascii) in al
error:
mov dword [0xb8000], 0x4f524f45
mov dword [0xb8004], 0x4f3a4f52
mov dword [0xb8008], 0x4f204f20
mov byte [0xb800a], al
hlt