author | Jussi Ryoma <ext-jussi.s.ryoma@nokia.com> |
Fri, 27 Aug 2010 12:21:46 +0300 | |
changeset 3 | 045ade241ef5 |
parent 0 | 818e61de6cd1 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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using System; |
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using System.Text; |
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using System.Collections.Generic; |
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using CrashItemLib.Crash; |
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using CrashItemLib.Crash.Base; |
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using CrashItemLib.Crash.Container; |
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using CrashItemLib.Crash.Registers; |
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using CrashItemLib.Crash.Registers.Visualization.Bits; |
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|
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namespace CrashItemLib.Crash.Registers.Visualization.Utilities |
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{ |
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public static class VisUtilities |
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{ |
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public static IEnumerable<CIRegisterVisBit> ExtractBits( CIContainer aContainer, uint aValue, string aByte3Mask, string aByte2Mask, string aByte1Mask, string aByte0Mask ) |
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{ |
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return ExtractBits( aContainer, aValue, aByte3Mask + aByte2Mask + aByte1Mask + aByte0Mask ); |
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} |
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|
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public static IEnumerable<CIRegisterVisBit> ExtractBits( CIContainer aContainer, uint aValue, string aMask ) |
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{ |
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List<CIRegisterVisBit> ret = new List<CIRegisterVisBit>(); |
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// |
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int shift = 0; |
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int sigBitCount = 0; |
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uint mask = MakeMask( aMask, out shift, out sigBitCount ); |
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uint maskedValue = ( aValue & mask ) >> shift; |
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|
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// Now make bits |
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for ( int i = sigBitCount-1; i >= 0; i-- ) |
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{ |
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mask = (uint) ( 1u << i ); |
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uint value = ( maskedValue & mask ) >> i; |
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|
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CIRegisterVisBit bit = new CIRegisterVisBit( aContainer ); |
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if ( value != 0 ) |
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{ |
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bit.Value = TBit.EBitSet; |
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} |
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ret.Add( bit ); |
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} |
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|
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return ret.ToArray(); |
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} |
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|
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public static TBit ExtractBit( uint aValue, string aByte1Mask, string aByte0Mask ) |
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{ |
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string b0 = EnsureByteMask( aByte0Mask ); |
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string b1 = EnsureByteMask( aByte1Mask ); |
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// |
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int shift; |
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uint mask = MakeMask( b1 + b0, out shift ); |
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// |
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uint value = aValue & mask; |
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value >>= shift; |
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// |
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if ( value == 1 ) |
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{ |
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return TBit.EBitSet; |
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} |
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|
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return TBit.EBitClear; |
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} |
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|
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public static TBit ExtractBit( uint aValue, string aByte3Mask, string aByte2Mask, string aByte1Mask, string aByte0Mask ) |
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{ |
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string b0 = EnsureByteMask( aByte0Mask ); |
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string b1 = EnsureByteMask( aByte1Mask ); |
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string b2 = EnsureByteMask( aByte2Mask ); |
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string b3 = EnsureByteMask( aByte3Mask ); |
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// |
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int shift; |
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uint mask = MakeMask( b3 + b2 + b1 + b0, out shift ); |
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// |
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uint value = aValue & mask; |
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value >>= shift; |
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// |
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if ( value == 1 ) |
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{ |
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return TBit.EBitSet; |
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} |
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return TBit.EBitClear; |
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} |
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// [ aByte0 ] |
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public static uint MakeMask( string aByte ) |
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{ |
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return MakeMask( string.Empty, string.Empty, string.Empty, aByte ); |
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} |
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// [ aByte1 ] [ aByte0 ] |
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108 |
public static uint MakeMask( string aByte1, string aByte0 ) |
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109 |
{ |
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110 |
return MakeMask( string.Empty, string.Empty, aByte1, aByte0 ); |
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111 |
} |
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112 |
|
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113 |
// [ aByte3 ] [ aByte2 ] [ aByte1 ] [ aByte0 ] |
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114 |
public static uint MakeMask( string aByte3, string aByte2, string aByte1, string aByte0 ) |
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115 |
{ |
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116 |
int shift = 0; |
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return MakeMask( aByte3, aByte2, aByte1, aByte0, out shift ); |
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118 |
} |
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119 |
|
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120 |
public static uint MakeMask( string aByte3, string aByte2, string aByte1, string aByte0, out int aShiftAmount ) |
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121 |
{ |
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122 |
string byteString3 = EnsureByteMask( aByte3 ); |
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123 |
string byteString2 = EnsureByteMask( aByte2 ); |
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124 |
string byteString1 = EnsureByteMask( aByte1 ); |
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125 |
string byteString0 = EnsureByteMask( aByte0 ); |
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126 |
string byteString = byteString3 + byteString2 + byteString1 + byteString0; |
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127 |
// |
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128 |
uint mask = MakeMask( byteString, out aShiftAmount ); |
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129 |
// |
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130 |
return mask; |
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131 |
} |
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132 |
|
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133 |
public static uint MakeMask( string aSpec, out int aShiftAmount ) |
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134 |
{ |
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135 |
int sigBitCount = 0; |
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136 |
return MakeMask( aSpec, out aShiftAmount, out sigBitCount ); |
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137 |
} |
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138 |
|
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139 |
public static uint MakeMask( string aSpec, out int aShiftAmount, out int aSignificantBitCount ) |
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140 |
{ |
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141 |
bool setFirstBitIndex = false; |
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142 |
aShiftAmount = 0; |
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143 |
aSignificantBitCount = 0; |
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144 |
uint mask = 0; |
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145 |
|
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146 |
// Loop through all characters in the mask, starting from the RHS, working |
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147 |
// towards the left hand side. |
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148 |
int count = aSpec.Length; |
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149 |
for ( int bit = 0; bit < count; bit++ ) |
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150 |
{ |
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151 |
// Get a character from the string, starting at the RHS |
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152 |
char c = aSpec[ count - bit - 1 ]; |
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153 |
// |
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154 |
if ( c == KBitIsSet ) |
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155 |
{ |
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156 |
mask |= (uint) ( 1u << bit ); |
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157 |
if ( !setFirstBitIndex ) |
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158 |
{ |
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159 |
aShiftAmount = bit; |
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160 |
setFirstBitIndex = true; |
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161 |
} |
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162 |
++aSignificantBitCount; |
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163 |
} |
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164 |
else if ( c == KBitIsClear ) |
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165 |
{ |
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166 |
if ( !setFirstBitIndex ) |
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167 |
{ |
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168 |
aShiftAmount = bit; |
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169 |
setFirstBitIndex = true; |
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170 |
} |
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171 |
++aSignificantBitCount; |
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172 |
} |
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173 |
else if ( c == KBitIsNotApplicable ) |
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174 |
{ |
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175 |
} |
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176 |
} |
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177 |
// |
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178 |
return mask; |
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179 |
} |
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180 |
|
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181 |
public static string EnsureByteMask( string aMask ) |
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182 |
{ |
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183 |
string ret = aMask.PadLeft( 8, '0' ); |
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184 |
return ret; |
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185 |
} |
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186 |
|
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187 |
public static string ToBinary( uint aValue ) |
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188 |
{ |
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189 |
StringBuilder ret = new StringBuilder(); |
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190 |
// |
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191 |
for ( int i = 31; i >= 0; i-- ) |
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192 |
{ |
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193 |
uint mask = (uint) ( 1u << i ); |
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194 |
uint value = ( aValue & mask ) >> i; |
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195 |
if ( value != 0 ) |
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196 |
{ |
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197 |
ret.Append( '1' ); |
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198 |
} |
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199 |
else |
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200 |
{ |
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201 |
ret.Append( '0' ); |
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202 |
} |
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203 |
} |
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204 |
// |
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205 |
return ret.ToString(); |
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206 |
} |
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|
207 |
|
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|
208 |
#region Constants |
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209 |
public const char KBitIsSet = '1'; |
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210 |
public const char KBitIsClear = '0'; |
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211 |
public const char KBitIsNotApplicable = '#'; |
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212 |
#endregion |
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213 |
} |
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214 |
} |