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56 lines
1.9 KiB
ArmAsm
56 lines
1.9 KiB
ArmAsm
//
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// $Id: crt0.S,v 1.6 2005-10-11 09:28:29 obarthel Exp $
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//
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// :ts=4
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//
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// Portable ISO 'C' (1994) runtime library for the Amiga computer
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// Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
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// All rights reserved.
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//
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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
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// are met:
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//
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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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//
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// - Neither the name of Olaf Barthel nor the names of contributors
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// may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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.text
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.globl main /* This enforces linkage against the main() function */
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.globl _main
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.globl _start
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_start:
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#if defined(SMALL_DATA)
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/* Don't do a function call here, since that
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means LR has to be saved */
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lis r13, _SDA_BASE_@ha
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addi r13, r13, _SDA_BASE_@l
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#endif
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#if defined(BASEREL_DATA)
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/* We also need to set up the data segment pointer */
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lis r2, _DATA_BASE_@ha
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addi r2, r2, _DATA_BASE_@l
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#endif
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b _main
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