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47 lines
2.5 KiB
C
47 lines
2.5 KiB
C
/*****************************************************************************/
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/* */
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/* specialmath.h */
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/* */
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/* Optimized math routines for special usages */
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/* */
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/* */
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/* */
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/* (C) 2019 Christian 'Irgendwer' Krueger */
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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 _SPECIALMATH_H
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#define _SPECIALMATH_H
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/* Multiply an 8 bit unsigned value by 20 and return the 16 bit unsigned result */
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unsigned int __fastcall__ _mul20(unsigned char value);
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/* Multiply an 8 bit unsigned value by 40 and return the 16 bit unsigned result */
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unsigned int __fastcall__ _mul40(unsigned char value);
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/* End of specialmath.h */
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#endif
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