[r30]: trunk / multiboot.asm History

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multiboot.asm    60 lines (48 with data), 1.1 kB 

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.686p



_TEXT segment para public alias(".atext") ".text"

	extrn _kernel_init:PROC

	public _kentry

	public _ntentry



    MULTIBOOT_HEADER_MAGIC	equ 01BADB002h

    MULTIBOOT_HEADER_FLAGS	equ 000010003h



    MULTIBOOT_CHECKSUM	equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)



	_ntentry:

		ret

		align 4

	MultibootHeader:

		_Magic DD MULTIBOOT_HEADER_MAGIC

		_Flags DD MULTIBOOT_HEADER_FLAGS

		_Checksum DD MULTIBOOT_CHECKSUM

		_Header_Addr DD MultibootHeader

		_load_addr DD MultibootHeader

		_Load_End_Addr DD _DataEnd

		_Bss_End_Addr DD _BssEnd

		_Entry_Addr DD _kentry

		_mode_type DD 0

		_width DD 0

		_height DD 0

		_depth DD 0



	_kentry:

		cli

		cld

		mov esp, 09000h

		push ebx

		push eax

		call _kernel_init

		cli

		hlt

		jmp $



_TEXT ends



_Zdata segment para public alias(".zdata$z") ".data"

	public _DataEnd

	_DataEnd dd ?

_Zdata ends



_Abss segment alias(".abss$a") ".bss"

	public _BssBegin

	_BssBegin dd ?

_Abss ends





_zbss segment alias(".zbss$z") ".bss"

	public _BssEnd

	_BssEnd dd $

_zbss ends





end