newlib-cygwin/newlib/libc/machine/i386/f_tan.S

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2000-02-18 03:39:52 +08:00
/*
* ====================================================
* Copyright (C) 1998 by Cygnus Solutions. All rights reserved.
*
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/*
Fast version of tan using Intel float instructions.
double _f_tan (double x);
Function calculates the tangent of x.
There is no error checking or setting of errno.
*/
#include "i386mach.h"
.global SYM (_f_tan)
SYM (_f_tan):
pushl ebp
movl esp,ebp
fldl 8(ebp)
fptan
fincstp
leave
ret