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- /*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 2012 Free Software Foundation, Inc.
- *
- * GRUB is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * GRUB 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
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
- */
- #define SYSCALL_WRITE 4
- #define SYSCALL_RESET 88
- #define SYSCALL_EXIT 1
- #define STDOUT 1
- #define SHUTDOWN_MAGIC1 0xfee1dead
- #define SHUTDOWN_MAGIC2 0x28121969
- #define SHUTDOWN_MAGIC3 0x4321fedc
- .text
- .global start, _start, __start
- __start:
- _start:
- start:
- /* write. */
- li %r0, SYSCALL_WRITE
- li %r3, STDOUT
- lis %r4, message@h
- ori %r4, %r4, message@l
- lis %r5, messageend@h
- ori %r5, %r5, messageend@l
- sub %r5, %r5, %r4
- sc
- /* shutdown. */
- li %r0, SYSCALL_RESET
- lis %r3, SHUTDOWN_MAGIC1@h
- ori %r3, %r3, SHUTDOWN_MAGIC1@l
- lis %r4, SHUTDOWN_MAGIC2@h
- ori %r4, %r4, SHUTDOWN_MAGIC2@l
- lis %r5, SHUTDOWN_MAGIC3@h
- ori %r5, %r5, SHUTDOWN_MAGIC3@l
- sc
- /* exit(1). Shouldn't be reached. */
- li %r0, SYSCALL_EXIT
- li %r3, 1
- sc
- .data
- message:
- .ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
- messageend:
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