diff options
Diffstat (limited to 'sysdeps/m68k/fpu/e_atan2.c')
| -rw-r--r-- | sysdeps/m68k/fpu/e_atan2.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/sysdeps/m68k/fpu/e_atan2.c b/sysdeps/m68k/fpu/e_atan2.c deleted file mode 100644 index 551b14db81..0000000000 --- a/sysdeps/m68k/fpu/e_atan2.c +++ /dev/null @@ -1,104 +0,0 @@ -/* Copyright (C) 1997, 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <math.h> -#include "math_private.h" -#include "mathimpl.h" - -#ifndef SUFF -#define SUFF -#endif -#ifndef float_type -#define float_type double -#endif - -#define CONCATX(a,b) __CONCAT(a,b) -#define s(name) CONCATX(name,SUFF) -#define m81(func) __m81_u(s(func)) - -float_type -s(__ieee754_atan2) (float_type y, float_type x) -{ - float_type pi, pi_2, z; - unsigned long y_cond, x_cond; - - __asm ("fmovecr%.x %#0, %0" : "=f" (pi)); - __asm ("fscale%.w %#-1, %0" : "=f" (pi_2) : "0" (pi)); - y_cond = __m81_test (y); - x_cond = __m81_test (x); - - if ((x_cond | y_cond) & __M81_COND_NAN) - z = x + y; - else if (y_cond & __M81_COND_ZERO) - { - if (x_cond & __M81_COND_NEG) - z = y_cond & __M81_COND_NEG ? -pi : pi; - else - z = y; - } - else if (x_cond & __M81_COND_INF) - { - if (y_cond & __M81_COND_INF) - { - float_type pi_4; - __asm ("fscale%.w %#-2, %0" : "=f" (pi_4) : "0" (pi)); - z = x_cond & __M81_COND_NEG ? 3 * pi_4 : pi_4; - } - else - z = x_cond & __M81_COND_NEG ? pi : 0; - if (y_cond & __M81_COND_NEG) - z = -z; - } - else if (y_cond & __M81_COND_INF) - z = y_cond & __M81_COND_NEG ? -pi_2 : pi_2; - else if (x_cond & __M81_COND_NEG) - { - if (y_cond & __M81_COND_NEG) - { - if (-x > -y) - z = -pi + m81(__atan) (y / x); - else - z = -pi_2 - m81(__atan) (x / y); - } - else - { - if (-x > y) - z = pi + m81(__atan) (y / x); - else - z = pi_2 - m81(__atan) (x / y); - } - } - else - { - if (y_cond & __M81_COND_NEG) - { - if (x > -y) - z = m81(__atan) (y / x); - else - z = -pi_2 - m81(__atan) (x / y); - } - else - { - if (x > y) - z = m81(__atan) (y / x); - else - z = pi_2 - m81(__atan) (x / y); - } - } - return z; -} |