-
Notifications
You must be signed in to change notification settings - Fork 390
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
add support for Modbus BIG_ENDIAN_WORD_SWAP and LITTLE_ENDIAN_WORD_SW…
…AP (#1632) modbus support BIG_ENDIAN_WORD_SWAP modbus support LITTLE_ENDIAN_WORD_SWAP
- Loading branch information
1 parent
05a3ca2
commit a864274
Showing
4 changed files
with
188 additions
and
25 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
84 changes: 84 additions & 0 deletions
84
plc4j/spi/src/main/java/org/apache/plc4x/java/spi/utils/ByteOrderUtils.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| package org.apache.plc4x.java.spi.utils; | ||
|
|
||
| public class ByteOrderUtils { | ||
| /** | ||
| * Byte order is 'A B C D' | ||
| * @param num int number | ||
| * @return int number in big endian format | ||
| */ | ||
| public static int BigEndian(int num){ | ||
| return num; | ||
| } | ||
| /** | ||
| * Byte order is 'D C B A' | ||
| * @param num int number | ||
| * @return int number in little endian format | ||
| */ | ||
| public static int LittleEndian(int num){ | ||
| return Integer.reverseBytes(num); | ||
| } | ||
| /** | ||
| * Byte order is 'B A D C' | ||
| * @param num int number | ||
| * @return int number in big endian swap format | ||
| */ | ||
| public static int BigEndianWordSwap(int num){ | ||
| return (num << 16)|(num >>> 16); | ||
| } | ||
| /** | ||
| * Byte order is 'C D A B' | ||
| * @param num int number | ||
| * @return int number in little endian swap format | ||
| */ | ||
| public static int LittleEndianWordSwap(int num){ | ||
| return ((num&0xff00)>>>8)| | ||
| ((num<<8)&0xff00)| | ||
| ((num<<8)&0xff000000)| | ||
| ((num &0xff000000)>>>8); | ||
| } | ||
|
|
||
|
|
||
|
|
||
| /** | ||
| * Byte order is 'A B C D E F G H' | ||
| * @param num long number | ||
| * @return long number in big endian format | ||
| */ | ||
| public static long BigEndian(long num){ | ||
| return num; | ||
| } | ||
|
|
||
| /** | ||
| * Byte order is 'H G F E D C B A' | ||
| * @param num long number | ||
| * @return long number in little endian format | ||
| */ | ||
| public static long LittleEndian(long num){ | ||
| return Long.reverseBytes(num); | ||
| } | ||
|
|
||
| /** | ||
| * Byte order is 'B A D C F E H G' | ||
| * @param num long number | ||
| * @return long number in big endian format | ||
| */ | ||
| public static long BigEndianWordSwap(long num){ | ||
|
|
||
| return (num & 0x00ff00ff00ff00ffL) << 8 | (num >>> 8) & 0x00ff00ff00ff00ffL; | ||
| } | ||
|
|
||
| /** | ||
| * Byte order is 'G H E F C D A B' | ||
| * @param num long number | ||
| * @return long number in little endian format | ||
| */ | ||
| public static long LittleEndianWordSwap(long num){ | ||
|
|
||
| return (num & 0xffff000000000000L) >>> 48 | | ||
| (num & 0x0000ffff00000000L) >>> 16 | | ||
| (num & 0x00000000ffff0000L) << 16 | | ||
| (num & 0x000000000000ffffL) << 48; | ||
| } | ||
|
|
||
|
|
||
| } |