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
|
/*
* Copyright (c) 2003 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
# include <string.h>
# include <stdlib.h>
# include <assert.h>
# include "config.h"
# include "vpi_user.h"
# include "veriuser.h"
void tf_multiply_long(PLI_INT32*aof_low1, PLI_INT32*aof_high1,
PLI_INT32 aof_low2, PLI_INT32 aof_high2)
{
ivl_u64_t a, b;
a = *aof_high1;
a = (a << 32) | *aof_low1;
b = aof_high2;
b = (b << 32) | aof_low2;
a *= b;
*aof_high1 = (a >> 32) & 0xffffffff;
*aof_low1 = a & 0xffffffff;
}
void tf_real_to_long(double real, PLI_INT32*low, PLI_INT32*high)
{
ivl_u64_t rtn = (ivl_u64_t)real;
*high = (rtn >> 32) & 0xffffffff;
*low = rtn & 0xffffffff;
}
void tf_long_to_real(PLI_INT32 low, PLI_INT32 high, double *real)
{
ivl_u64_t a;
a = high;
a = (a << 32) | low;
*real = (double)a;
}
|
