mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-11 19:49:32 +00:00
54 lines
1.8 KiB
ArmAsm
54 lines
1.8 KiB
ArmAsm
|
/* Copyright (c) 2016 Phoenix Systems
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
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.
|
||
|
|
|
||
|
|
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.*/
|
||
|
|
|
||
|
|
.syntax unified
|
||
|
|
.section .text, "ax"
|
||
|
|
.global _start
|
||
|
|
.global main
|
||
|
|
.global exit
|
||
|
|
.global environ
|
||
|
|
.global __progname
|
||
|
|
|
||
|
|
.align 4
|
||
|
|
|
||
|
|
_start:
|
||
|
|
/* Ignore return address passed on the top of stack. */
|
||
|
|
pop {lr}
|
||
|
|
ldmfd sp, {r0-r2}
|
||
|
|
ldr r3, =environ
|
||
|
|
ldr r4, =__progname
|
||
|
|
ldr r5, [r1]
|
||
|
|
str r2, [r3]
|
||
|
|
str r5, [r4]
|
||
|
|
|
||
|
|
/* Align stack. */
|
||
|
|
bic sp, #0x00000007
|
||
|
|
ldr lr, =main
|
||
|
|
blx lr
|
||
|
|
ldr lr, =exit
|
||
|
|
blx lr
|
||
|
|
|
||
|
|
.section .data
|
||
|
|
__progname:
|
||
|
|
.word 0
|