64 lines
2.0 KiB
ArmAsm
64 lines
2.0 KiB
ArmAsm
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/* crt0.S for the TI C6X series of processors
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Copyright (c) 2010 CodeSourcery, Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of CodeSourcery nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY CODESOURCERY, INC. ``AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CODESOURCERY BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGE. */
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.text
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.align 2
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.global _start
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_start:
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/* Start by setting up a stack */
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mvkl .s2 _STACK_START - 4, B15
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mvkh .s2 _STACK_START - 4, B15
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and .s2 -8, B15, B15
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mvkl .s2 __c6xabi_DSBT_BASE, B14
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mvkh .s2 __c6xabi_DSBT_BASE, B14
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#ifdef __DSBT__
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stw .d2t2 B14, *B14
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#endif
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/* Zero the memory in the .bss section. */
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/* Set up GOT pointer. */
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mvkl .s2 1f, B3
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mvkh .s2 1f, B3
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call .s2 _init
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nop 5
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1:
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mvkl .s2 1f, B3
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mvkh .s2 1f, B3
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call .s2 main
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nop 5
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1:
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b .s2 exit
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nop 5
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