diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_sincos.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_sincos.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/i386/fpu/s_sincos.S b/sysdeps/i386/fpu/s_sincos.S new file mode 100644 index 0000000000..fe99f42d18 --- /dev/null +++ b/sysdeps/i386/fpu/s_sincos.S @@ -0,0 +1,48 @@ +/* Compute sine and cosine of argument. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <machine/asm.h> + +ENTRY(__sincos) + fldl 4(%esp) + fsincos + movl 12(%esp), %ecx + movl 16(%esp), %edx + fnstsw %ax + testl $0x400,%eax + jnz 1f + fstpl (%edx) + fstpl (%ecx) + ret + .align ALIGNARG(4) +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fnstsw %ax + testl $0x400,%eax + jnz 2b + fstp %st(1) + fsincos + fstpl (%edx) + fstpl (%ecx) + ret +END(__sincos) +weak_alias(__sincos, sincos) |