OpenASIP 2.2
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Encoding.cc
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1/*
2 Copyright (c) 2002-2009 Tampere University.
3
4 This file is part of TTA-Based Codesign Environment (TCE).
5
6 Permission is hereby granted, free of charge, to any person obtaining a
7 copy of this software and associated documentation files (the "Software"),
8 to deal in the Software without restriction, including without limitation
9 the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 and/or sell copies of the Software, and to permit persons to whom the
11 Software is furnished to do so, subject to the following conditions:
12
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 DEALINGS IN THE SOFTWARE.
23 */
24/**
25 * @file Encoding.cc
26 *
27 * Implementation of Encoding class.
28 *
29 * @author Lasse Laasonen 2005 (lasse.laasonen-no.spam-tut.fi)
30 * @note rating: red
31 */
32
33#include <string>
34
35#include "Encoding.hh"
36#include "ObjectState.hh"
37#include "MathTools.hh"
38#include "ObjectState.hh"
39
40using std::string;
41
42const std::string Encoding::OSNAME_ENCODING = "encoding";
43const std::string Encoding::OSKEY_ENCODING = "encoding";
44const std::string Encoding::OSKEY_EXTRA_BITS = "extra_bits";
45
46/**
47 * The constructor.
48 *
49 * @param encoding The encoding.
50 * @param extraBits The number of extra bits.
51 * @param parent The parent pointer.
52 */
54 unsigned int encoding,
55 unsigned int extraBits,
56 InstructionField* parent) :
57 encoding_(encoding), extraBits_(extraBits), parent_(parent) {
58}
59
60
61/**
62 * The constructor.
63 *
64 * Loads the state of the object from the given ObjectState instance.
65 *
66 * @param state The ObjectState instance.
67 * @param parent The parent pointer.
68 * @exception ObjectStateLoadingException If an error occurs while loading
69 * the state.
70 */
72 : encoding_(0), extraBits_(0), parent_(parent) {
73 const string procName = "Encoding::Encoding";
74
75 try {
78 } catch (const Exception& exception) {
80 __FILE__, __LINE__, procName, exception.errorMessage());
81 }
82}
83
84/**
85 * The destructor.
86 */
89
90
91/**
92 * Returns the parent instruction field.
93 *
94 * @return The parent instruction field.
95 */
98 return parent_;
99}
100
101
102/**
103 * Returns the encoding.
104 *
105 * @return The encoding.
106 */
107unsigned int
109 return encoding_;
110}
111
112
113/**
114 * Returns the number of extra zero bits in the encoding.
115 *
116 * @return The number of extra bits.
117 */
118unsigned int
120 return extraBits_;
121}
122
123
124/**
125 * Returns the bit width required by the encoding.
126 *
127 * @return The bit width.
128 */
129int
132}
133
134
135/**
136 * Saves the state of the object to an ObjectState instance.
137 *
138 * @return The newly created ObjectState instance.
139 */
145 return state;
146}
147
148
149/**
150 * Sets the parent pointer.
151 *
152 * @param parent The parent pointer.
153 */
154void
158
159/**
160 * Sets the encoding
161 */
162void
163Encoding::setEncoding(unsigned int encoding, unsigned int extraBits) {
166}
unsigned int encoding_
The encoding.
Definition Encoding.hh:81
static const std::string OSKEY_EXTRA_BITS
ObjectState attribute key for the number of extra bits.
Definition Encoding.hh:68
static const std::string OSNAME_ENCODING
ObjectState name for Encoding class.
Definition Encoding.hh:64
unsigned int extraBits() const
Definition Encoding.cc:119
virtual ObjectState * saveState() const
Definition Encoding.cc:141
InstructionField * parent() const
Definition Encoding.cc:97
InstructionField * parent_
The parent instruction field.
Definition Encoding.hh:85
Encoding(unsigned int encoding, unsigned int extraBits, InstructionField *parent)
Definition Encoding.cc:53
static const std::string OSKEY_ENCODING
ObjectState attribute key for the encoding.
Definition Encoding.hh:66
virtual int width() const
Definition Encoding.cc:130
virtual ~Encoding()
Definition Encoding.cc:87
void setEncoding(unsigned int encoding, unsigned int extraBits)
Definition Encoding.cc:163
void setParent(InstructionField *parent)
Definition Encoding.cc:155
unsigned int extraBits_
The number of extra bits.
Definition Encoding.hh:83
unsigned int encoding() const
Definition Encoding.cc:108
std::string errorMessage() const
Definition Exception.cc:123
static unsigned int bitLength(long unsigned int number)
void setAttribute(const std::string &name, const std::string &value)
int intAttribute(const std::string &name) const