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
|
/* Copyright (C) 2006-2015 Free Software Foundation, Inc.
This file is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your option)
any later version.
This file 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 General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include <spu_intrinsics.h>
const unsigned char __didf_scale[16] __attribute__ ((__aligned__ (16))) = {
0x00, 0x00, 0x04, 0x3e,
0x00, 0x00, 0x04, 0x1e,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
const unsigned char __didf_pat[16] __attribute__ ((__aligned__ (16))) = {
0x02, 0x03, 0x10, 0x11,
0x12, 0x13, 0x80, 0x80,
0x06, 0x07, 0x14, 0x15,
0x16, 0x17, 0x80, 0x80
};
/* double __float_unsdidf (unsigned long long int)
Construct two exact doubles representing the high and low parts (in
parallel), then add them. */
qword __float_unsdidf (qword DI);
qword
__float_unsdidf (qword DI)
{
qword t0, t1, t2, t3, t4, t5, t6, t7, t8;
t0 = si_clz (DI);
t1 = si_shl (DI, t0);
t2 = si_ceqi (t0, 32);
t3 = si_sf (t0, *(const qword *) __didf_scale);
t4 = si_a (t1, t1);
t5 = si_andc (t3, t2);
t6 = si_shufb (t5, t4, *(const qword *) __didf_pat);
t7 = si_shlqbii (t6, 4);
t8 = si_shlqbyi (t7, 8);
return si_dfa (t7, t8);
}
|
