| /* |
| * |
| * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| * Copyright (C) 2017 Patrick Rudolph <siro@das-labor.org> |
| * Copyright (C) 2024 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #define MB_MAGIC 0x1BADB002 |
| #define MB_FLAGS 0x00010003 |
| |
| jmp _init |
| |
| /* |
| * Note: The Multiboot standard requires Multiboot header to be placed |
| * below 0x2000 in the resulting image. See: |
| * http://www.gnu.org/software/grub/manual/multiboot/html_node/OS-image-format.html |
| */ |
| mb_header: |
| .long MB_MAGIC |
| .long MB_FLAGS |
| .long -(MB_MAGIC + MB_FLAGS) |
| .long mb_header |
| .long _start |
| .long _edata |
| .long _end |
| .long _init |
| |
| _init: |
| /* Store EAX and EBX */ |
| movl %eax, loader_eax |
| movl %ebx, loader_ebx |