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/*
* Copyright (c) 1996-1998 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Define a stub that copies the kernel into its final resting place,
* and then "calls" it.
*/
#include <oskit/machine/asm.h>
#include <oskit/x86/multiboot.h>
.text
/*
* %eax entry point
* %esi where kernel is
* %edi where kernel wants to be
* %ecx how big kernel is
* %ebx addr of multiboot_info struct
* %edx segment we should switch to
*/
ENTRY(do_boot)
/* Set all the data segs to point to %dx. */
movw %dx,%ds
movw %dx,%es
movw %dx,%fs
movw %dx,%gs
movw %dx,%ss
rep
movsb
/* copy the entry point to %ecx and put multiboot magic into %eax */
movl %eax,%ecx
movl $MULTIBOOT_VALID,%eax
jmp *%ecx
ENTRY(do_boot_end)
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