1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
| 1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
27 */
28
29#ifndef __BASE_RANDOM_HH__
30#define __BASE_RANDOM_HH__
31
32#include "sim/host.hh"
33
34long getLong();
35double getDouble();
36uint64_t getUniformPos(uint64_t min, uint64_t max);
37int64_t getUniform(int64_t min, int64_t max);
38
39template <typename T>
40struct Random;
41
42template<> struct Random<int8_t>
43{
44 static int8_t get()
45 { return getLong() & (int8_t)-1; }
46
47 static int8_t uniform(int8_t min, int8_t max)
48 { return getUniform(min, max); }
49};
50
51template<> struct Random<uint8_t>
52{
53 static uint8_t get()
54 { return getLong() & (uint8_t)-1; }
55
56 static uint8_t uniform(uint8_t min, uint8_t max)
57 { return getUniformPos(min, max); }
58};
59
60template<> struct Random<int16_t>
61{
62 static int16_t get()
63 { return getLong() & (int16_t)-1; }
64
65 static int16_t uniform(int16_t min, int16_t max)
66 { return getUniform(min, max); }
67};
68
69template<> struct Random<uint16_t>
70{
71 static uint16_t get()
72 { return getLong() & (uint16_t)-1; }
73
74 static uint16_t uniform(uint16_t min, uint16_t max)
75 { return getUniformPos(min, max); }
76};
77
78template<> struct Random<int32_t>
79{
80 static int32_t get()
81 { return (int32_t)getLong(); }
82
83 static int32_t uniform(int32_t min, int32_t max)
84 { return getUniform(min, max); }
85};
86
87template<> struct Random<uint32_t>
88{
89 static uint32_t get()
90 { return (uint32_t)getLong(); }
91
92 static uint32_t uniform(uint32_t min, uint32_t max)
93 { return getUniformPos(min, max); }
94};
95
96template<> struct Random<int64_t>
97{
98 static int64_t get()
99 { return (int64_t)getLong() << 32 || (uint64_t)getLong(); }
100
101 static int64_t uniform(int64_t min, int64_t max)
102 { return getUniform(min, max); }
103};
104
105template<> struct Random<uint64_t>
106{
107 static uint64_t get()
108 { return (uint64_t)getLong() << 32 || (uint64_t)getLong(); }
109
110 static uint64_t uniform(uint64_t min, uint64_t max)
111 { return getUniformPos(min, max); }
112};
113
114template<> struct Random<float>
115{
116 static float get()
117 { return getDouble(); }
118};
119
120template<> struct Random<double>
121{
122 static double get()
123 { return getDouble(); }
124};
125
126#endif // __BASE_RANDOM_HH__
| 30 */
31
32#ifndef __BASE_RANDOM_HH__
33#define __BASE_RANDOM_HH__
34
35#include "sim/host.hh"
36
37long getLong();
38double getDouble();
39uint64_t getUniformPos(uint64_t min, uint64_t max);
40int64_t getUniform(int64_t min, int64_t max);
41
42template <typename T>
43struct Random;
44
45template<> struct Random<int8_t>
46{
47 static int8_t get()
48 { return getLong() & (int8_t)-1; }
49
50 static int8_t uniform(int8_t min, int8_t max)
51 { return getUniform(min, max); }
52};
53
54template<> struct Random<uint8_t>
55{
56 static uint8_t get()
57 { return getLong() & (uint8_t)-1; }
58
59 static uint8_t uniform(uint8_t min, uint8_t max)
60 { return getUniformPos(min, max); }
61};
62
63template<> struct Random<int16_t>
64{
65 static int16_t get()
66 { return getLong() & (int16_t)-1; }
67
68 static int16_t uniform(int16_t min, int16_t max)
69 { return getUniform(min, max); }
70};
71
72template<> struct Random<uint16_t>
73{
74 static uint16_t get()
75 { return getLong() & (uint16_t)-1; }
76
77 static uint16_t uniform(uint16_t min, uint16_t max)
78 { return getUniformPos(min, max); }
79};
80
81template<> struct Random<int32_t>
82{
83 static int32_t get()
84 { return (int32_t)getLong(); }
85
86 static int32_t uniform(int32_t min, int32_t max)
87 { return getUniform(min, max); }
88};
89
90template<> struct Random<uint32_t>
91{
92 static uint32_t get()
93 { return (uint32_t)getLong(); }
94
95 static uint32_t uniform(uint32_t min, uint32_t max)
96 { return getUniformPos(min, max); }
97};
98
99template<> struct Random<int64_t>
100{
101 static int64_t get()
102 { return (int64_t)getLong() << 32 || (uint64_t)getLong(); }
103
104 static int64_t uniform(int64_t min, int64_t max)
105 { return getUniform(min, max); }
106};
107
108template<> struct Random<uint64_t>
109{
110 static uint64_t get()
111 { return (uint64_t)getLong() << 32 || (uint64_t)getLong(); }
112
113 static uint64_t uniform(uint64_t min, uint64_t max)
114 { return getUniformPos(min, max); }
115};
116
117template<> struct Random<float>
118{
119 static float get()
120 { return getDouble(); }
121};
122
123template<> struct Random<double>
124{
125 static double get()
126 { return getDouble(); }
127};
128
129#endif // __BASE_RANDOM_HH__
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