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New include file for address alignment.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@5313 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
2011-12-26 22:38:06 +00:00
parent 2947c5f0ae
commit 1947d15c48
1 changed files with 71 additions and 0 deletions
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71
src/common/alignment.h Normal file
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/*****************************************************************************/
/* */
/* alignment.h */
/* */
/* Address aligment */
/* */
/* */
/* */
/* (C) 2011, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* 70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef ALIGNMENT_H
#define ALIGNMENT_H
/* common */
#include "inline.h"
/*****************************************************************************/
/* Code */
/*****************************************************************************/
#if defined(HAVE_INLINE)
INLINE unsigned long AlignAddr (unsigned long Addr, unsigned long Alignment)
/* Align an address to the given alignment */
{
return ((Addr + Alignment - 1) / Alignment) * Alignment;
}
#else
/* Beware: Evaluates the argument more than once! */
# define AlignAddr(Addr, Alignment) \
((((Addr) + (Alignment) - 1) / (Alignment)) * (Alignment))
#endif
/* End of alignment.h */
#endif