float_emul.h Source File

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float_emul.h
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1 #ifndef FLOAT_EMUL_H
2 #define FLOAT_EMUL_H
3 
4 /*
5  * Copyright (C) 2005-2018 Anders Gavare. All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  * derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  *
31  * Floating point emulation. See src/float_emul.c for the details.
32  */
33 
34 #include <math.h>
35 
36 #include "misc.h"
37 
39  double f;
40  int nan;
41 };
42 
43 #define IEEE_FMT_S 1 /* single, 32-bit float */
44 #define IEEE_FMT_D 2 /* double, 64-bit float */
45 #define IEEE_FMT_W 3 /* word, 32-bit integer */
46 #define IEEE_FMT_L 4 /* long, 64-bit integer */
47 
48 void ieee_interpret_float_value(uint64_t x, struct ieee_float_value *fvp, int fmt);
49 uint64_t ieee_store_float_value(double nf, int fmt);
50 
51 #endif /* FLOAT_EMUL_H */
ieee_interpret_float_value
void ieee_interpret_float_value(uint64_t x, struct ieee_float_value *fvp, int fmt)
Definition: float_emul.cc:49
ieee_store_float_value
uint64_t ieee_store_float_value(double nf, int fmt)
Definition: float_emul.cc:238
misc.h
ieee_float_value::nan
int nan
Definition: float_emul.h:40
ieee_float_value
Definition: float_emul.h:38
ieee_float_value::f
double f
Definition: float_emul.h:39

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