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
|
/* Software floating-point emulation.
Convert _Decimal64 to 128bit unsigned integer.
Copyright (C) 2023 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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, or (at your option) any later
version.
GCC 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 "soft-fp.h"
#include "bitint.h"
#if defined(__BITINT_MAXWIDTH__) && defined(__SIZEOF_INT128__)
extern void __bid_fixddbitint (UBILtype *, SItype, _Decimal64);
extern UTItype __bid_fixunsddti (_Decimal64);
UTItype
__bid_fixunsddti (_Decimal64 a)
{
UBILtype rb[128 / BIL_TYPE_SIZE];
__bid_fixddbitint (rb, 128, a);
#if BIL_TYPE_SIZE == 128
return rb[0];
#elif BIL_TYPE_SIZE == 64
return ((((UTItype) rb[BITINT_END (0, 1)]) << 64)
| rb[BITINT_END (1, 0)]);
#elif BIL_TYPE_SIZE == 32
return ((((UTItype) rb[BITINT_END (0, 3)]) << 96)
| (((UTItype) rb[BITINT_END (1, 2)]) << 64)
| (((UTItype) rb[BITINT_END (2, 1)]) << 32)
| rb[BITINT_END (3, 0)]);
#else
#error Unsupported UBILtype
#endif
}
#endif
|
