/**************************************************************************

 *									  *

 *		 Copyright (C) 1994, Silicon Graphics, Inc.		  *

 *									  *

 *  These coded instructions, statements, and computer programs  contain  *

 *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *

 *  are protected by Federal copyright law.  They  may  not be disclosed  *

 *  to  third  parties  or copied or duplicated in any form, in whole or  *

 *  in part, without the prior written consent of Silicon Graphics, Inc.  *

 *									  *

 **************************************************************************/



#include "guint.h"



/* ====================================================================

 * ====================================================================

 *

 * Module: coss.c

 * $Revision: 1.1.1.1 $

 * $Date: 2003/01/17 23:03:12 $

 * $Author: wheeler $

 * $Source: F:\\leaks\\leak\\bbgames\\d1\\routefree\\bbgames\\depot/os20l/extracted/usr/src/PR/libsrc/libultra/gu/coss.c,v $

 *

 * ====================================================================

 * ====================================================================

 */



/* coefficients for polynomial approximation of sin on +/- pi/2 */



/* ====================================================================

 *

 * FunctionName		coss

 *

 * Description		computes cosine of arg

 *

 * ====================================================================

 */



signed short

coss( unsigned short x )

{

	/* 0 <= x < 0x10000  ==>  0 <= x < 2PI */



	return sins ((unsigned short) (x + 0x4000));

}