[HaBo]

kernel_asm.o: In function `Base':
kernel.asm:(.text+0x6a): relocation truncated to fit: R_386_16 against `.text:'

global loader ; loader für Linker sichtbar machen
extern main   ; main-Funktion des C-Kernels


FLAGS    equ 0
MAGIC    equ 0x1BADB002       ; Magicnumber - Erkennungsmerkmal für Grub
CHECKSUM equ -(MAGIC + FLAGS) ; Checksum

;---------------------------------------------------------------------------------------

NULL_Desc:
	dd	0
	dd	0

CODE_Desc:
	dw	0xFFFF
	dw	0
	db	0
	db	0x9A
	db	0xCF
	db	0

DATA_Desc:
	dw	0xFFFF
	dw	0
	db	0
	db	0x92
	db	0xCF
	db	0

gdt:
Limit	dw	0

Base	dd	0

cli
mov	eax, cs
mov	ds, ax

shl	eax, 4

mov	[CODE_Desc+2], ax
mov	[DATA_Desc+2], ax
shr	eax, 16

mov	[CODE_Desc+4], al
mov	[DATA_Desc+4], al

mov	eax, cs
shl	eax, 4
add	eax, NULL_Desc
mov	[Base], eax
mov	[Limit], WORD gdt - NULL_Desc - 1

lgdt	[gdt]

mov	eax, cr0
or	eax, 1

mov	cr0, eax

db	0xea
dw	PMODE

dw	0x8

[Bits 32]
section .text:
align 4
MultiBootHeader:
  dd MAGIC       ; Magic number
  dd FLAGS       ; Flags
  dd CHECKSUM    ; Checksum

PMODE:
	mov	WORD [CODE_Desc+2], 0
	mov	WORD [DATA_Desc+2], 0
	mov	BYTE [CODE_Desc+4], 0
	mov	BYTE [CODE_Desc+4], 0

	mov	eax, 2
	shl	eax, 3
	mov	ds, ax
	mov	es, ax
	mov	ss, ax
	mov	eax, 0
	mov	fs, ax
	mov	gs, ax
	mov	esp, 0x1FFFFF

	jmp	0x8:0x1000 + PMODE2

PMODE2:
loader:
  	push eax         ; Multiboot Magicnumber auf den Stack legen
  	push ebx         ; Adresse der Multiboot-Structure auf den Stack legen
  	call main        ; main-Funktion des C-Kernels aufrufen
  
  	cli ; falls der Kernel bis hier her kommt, CPU anhalten
  	hlt