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86 lines
3.8 KiB
C
86 lines
3.8 KiB
C
/*****************************************************************************/
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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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/* Data */
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/*****************************************************************************/
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/* Maximum possible alignment. Beware: To increase the possible alignment it
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** is not enough to bump this value. Check the code inside.
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*/
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#define MAX_ALIGNMENT 0x10000UL
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/* The following value marks what is considered a "large alignment" and worth
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** a warning if not suppressed.
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*/
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#define LARGE_ALIGNMENT 0x101UL
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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unsigned long LeastCommonMultiple (unsigned long Left, unsigned long Right);
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/* Calculate the least common multiple of two numbers and return
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** the result.
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*/
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unsigned long AlignAddr (unsigned long Addr, unsigned long Alignment);
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/* Align an address to the given alignment */
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unsigned long AlignCount (unsigned long Addr, unsigned long Alignment);
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/* Calculate how many bytes must be inserted to align Addr to Alignment */
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/* End of alignment.h */
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#endif
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