1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/* Compute sine and cosine of argument.
Copyright (C) 1997, 2000 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 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, see
<http://www.gnu.org/licenses/>. */
#include <machine/asm.h>
#include "bp-sym.h"
#include "bp-asm.h"
#define PARMS LINKAGE /* no space for saved regs */
#define ANGLE PARMS
#define SINP ANGLE+8
#define COSP SINP+PTR_SIZE
.text
ENTRY (BP_SYM (__sincos))
ENTER
fldl ANGLE(%esp)
fsincos
movl SINP(%esp), %ecx
CHECK_BOUNDS_BOTH_WIDE (%ecx, SINP(%esp), $8)
movl COSP(%esp), %edx
CHECK_BOUNDS_BOTH_WIDE (%edx, COSP(%esp), $8)
fnstsw %ax
testl $0x400,%eax
jnz 1f
fstpl (%edx)
fstpl (%ecx)
LEAVE
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)
LEAVE
ret
END (BP_SYM (__sincos))
weak_alias (BP_SYM (__sincos), BP_SYM (sincos))
|