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#6 DMR Decoder (#947)

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* #6 DMR decoder feature - work in progress

* #6 DMR Decoder.

* #6 DMR Decoder.  Code review updates.

Co-authored-by: Zhenyu Mao <maozhenyu@foxmail.com>
Co-authored-by: Denny <denny@denny-desktop>
This commit is contained in:
Denny Sheirer
2020-10-12 04:57:59 -04:00
committed by GitHub
parent b061db1189
commit 7eec82deee
436 changed files with 36258 additions and 2409 deletions
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18
src/main/java/io/github/dsheirer/bits/BinaryMessage.java
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@@ -834,6 +834,24 @@ public class BinaryMessage extends BitSet
return value;
}
/**
* Returns the twos-complement value of the bits between start and end, inclusive
* @param start bit position
* @param end bit position
* @return twos complement value
*/
public int getTwosComplement(int start, int end)
{
BinaryMessage sub = getSubMessage(start, end);
boolean negative = sub.get(start);
sub.flip(0, sub.size());
int value = sub.getInt(0, sub.size()) + 1;
value *= (negative ? -1 : 1);
return value;
}
/**
* 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