1/* Compute sine and cosine of argument.
2   Copyright (C) 1997, 2000 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
5
6   The GNU C Library is free software; you can redistribute it and/or
7   modify it under the terms of the GNU Lesser General Public
8   License as published by the Free Software Foundation; either
9   version 2.1 of the License, or (at your option) any later version.
10
11   The GNU C Library is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   Lesser General Public License for more details.
15
16   You should have received a copy of the GNU Lesser General Public
17   License along with the GNU C Library; if not, write to the Free
18   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19   02111-1307 USA.  */
20
21#include <machine/asm.h>
22#include "bp-sym.h"
23#include "bp-asm.h"
24
25#define PARMS	LINKAGE		/* no space for saved regs */
26#define ANGLE	PARMS
27#define SINP	ANGLE+8
28#define COSP	SINP+PTR_SIZE
29
30	.text
31ENTRY (BP_SYM (__sincos))
32	ENTER
33
34	fldl	ANGLE(%esp)
35	fsincos
36	movl	SINP(%esp), %ecx
37	CHECK_BOUNDS_BOTH_WIDE (%ecx, SINP(%esp), $8)
38	movl	COSP(%esp), %edx
39	CHECK_BOUNDS_BOTH_WIDE (%edx, COSP(%esp), $8)
40	fnstsw	%ax
41	testl	$0x400,%eax
42	jnz	1f
43	fstpl	(%edx)
44	fstpl	(%ecx)
45
46	LEAVE
47	ret
48
49	.align ALIGNARG(4)
501:	fldpi
51	fadd	%st(0)
52	fxch	%st(1)
532:	fprem1
54	fnstsw	%ax
55	testl	$0x400,%eax
56	jnz	2b
57	fstp	%st(1)
58	fsincos
59	fstpl	(%edx)
60	fstpl	(%ecx)
61
62	LEAVE
63	ret
64END (BP_SYM (__sincos))
65weak_alias (BP_SYM (__sincos), BP_SYM (sincos))
66