f_tanf.s

来自「KPIT GNU Tools is a set of GNU developme」· S 代码 · 共 38 行

/*
 * ====================================================
 * Copyright (C) 1998, 2002 by Red Hat Inc. All rights reserved.
 *                              
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.                
 * ====================================================
 */                     

#if !defined(_SOFT_FLOAT)

/*
Fast version of tanf using Intel float instructions.

   float _f_tanf (float x);

Function calculates the tangent of x.
There is no error checking or setting of errno.
*/

	#include "i386mach.h"

	.global SYM (_f_tanf)
       SOTYPE_FUNCTION(_f_tanf)

SYM (_f_tanf):
	pushl ebp
	movl esp,ebp
	flds 8(ebp)
	fptan
	fincstp

	leave
	ret

#endif