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/* 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
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