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New include file for address alignment.
git-svn-id: svn://svn.cc65.org/cc65/trunk@5313 b7a2c559-68d2-44c3-8de9-860c34a00d81
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src/common/alignment.h
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71
src/common/alignment.h
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/*****************************************************************************/
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/* */
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/* alignment.h */
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/* */
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/* Address aligment */
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/* */
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/* */
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/* */
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/* (C) 2011, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* 70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef ALIGNMENT_H
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#define ALIGNMENT_H
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/* common */
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#include "inline.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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#if defined(HAVE_INLINE)
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INLINE unsigned long AlignAddr (unsigned long Addr, unsigned long Alignment)
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/* Align an address to the given alignment */
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{
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return ((Addr + Alignment - 1) / Alignment) * Alignment;
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}
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#else
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/* Beware: Evaluates the argument more than once! */
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# define AlignAddr(Addr, Alignment) \
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((((Addr) + (Alignment) - 1) / (Alignment)) * (Alignment))
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#endif
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/* End of alignment.h */
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#endif
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