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P25 work in progress

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dennis.sheirer
2015-01-02 14:08:22 +00:00
parent 95ddadc598
commit 03460eeb19
122 changed files with 5372 additions and 279 deletions
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94
src/bits/BitSetBuffer.java
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@@ -381,58 +381,102 @@ public class BitSetBuffer extends BitSet
}
/**
* Returns the integer value represented by the bit range
* @param start - MSB of the integer
* @param end - LSB of the integer
* @return - integer value of the bit range
* Returns the int value represented by the bit range. This method will
* parse the bits in big endian or little endian format. The start value
* represents the MSB and the end value represents the LSB of the value.
*
* start < end: little endian interpretation
* end < start: big endian interpretation
*
* @param start - MSB of the value
* @param end - LSB of the value
*
* @return - int value of the bit range
*/
public int getInt( int start, int end )
{
if( end - start > 32 )
if( Math.abs( end - start ) > 32 )
{
throw new IllegalArgumentException( "Overflow - must be 32 bits "
+ "or less to fit into a primitive integer value" );
}
int value = 0;
for( int x = start; x <= end; x++ )
{
value = Integer.rotateLeft( value, 1 );
if( get( x ) )
{
value++;;
}
if( start < end )
{
for( int x = start; x <= end; x++ )
{
value = Integer.rotateLeft( value, 1 );
if( get( x ) )
{
value++;;
}
}
}
else
{
for( int x = end; x >= start; x-- )
{
value = Integer.rotateLeft( value, 1 );
if( get( x ) )
{
value++;;
}
}
}
return value;
}
/**
* Returns the long value represented by the bit range
* @param start - MSB of the long
* @param end - LSB of the long
* Returns the long value represented by the bit range. This method will
* parse the bits in big endian or little endian format. The start value
* represents the MSB and the end value represents the LSB of the value.
*
* start < end: little endian interpretation
* end < start: big endian interpretation
*
* @param start - MSB of the value
* @param end - LSB of the value
*
* @return - long value of the bit range
*/
public long getLong( int start, int end )
{
if( end - start > 64 )
if( Math.abs( end - start ) > 64 )
{
throw new IllegalArgumentException( "Overflow - must be 64 bits "
+ "or less to fit into a primitive long value" );
}
long value = 0;
for( int x = start; x <= end; x++ )
if( start < end )
{
value = Long.rotateLeft( value, 1 );
if( get( x ) )
{
value++;
}
for( int x = start; x <= end; x++ )
{
value = Long.rotateLeft( value, 1 );
if( get( x ) )
{
value++;
}
}
}
else
{
for( int x = end; x >= start; x-- )
{
value = Long.rotateLeft( value, 1 );
if( get( x ) )
{
value++;
}
}
}
return value;