63 lines
2 KiB
ArmAsm
63 lines
2 KiB
ArmAsm
/* crt0.S for the TI C6X series of processors
|
|
|
|
Copyright (c) 2010 CodeSourcery, Inc.
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* 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.
|
|
* Neither the name of CodeSourcery nor the
|
|
names of its contributors may be used to endorse or promote products
|
|
derived from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY CODESOURCERY, INC. ``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 CODESOURCERY 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. */
|
|
|
|
.text
|
|
.align 2
|
|
|
|
.global _start
|
|
_start:
|
|
/* Start by setting up a stack */
|
|
mvkl .s2 _STACK_START - 4, B15
|
|
mvkh .s2 _STACK_START - 4, B15
|
|
and .s2 -8, B15, B15
|
|
|
|
mvkl .s2 __c6xabi_DSBT_BASE, B14
|
|
mvkh .s2 __c6xabi_DSBT_BASE, B14
|
|
|
|
#ifdef __DSBT__
|
|
stw .d2t2 B14, *B14
|
|
#endif
|
|
/* Zero the memory in the .bss section. */
|
|
|
|
/* Set up GOT pointer. */
|
|
|
|
mvkl .s2 1f, B3
|
|
mvkh .s2 1f, B3
|
|
call .s2 _init
|
|
nop 5
|
|
1:
|
|
|
|
mvkl .s2 1f, B3
|
|
mvkh .s2 1f, B3
|
|
call .s2 main
|
|
nop 5
|
|
1:
|
|
|
|
b .s2 exit
|
|
nop 5
|