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Script reference
BufDec( buf[], offset, method )
Decode a part of a buffer into a scalar
Description
BufDec( const buf[], offset, method )
This command will decode a portion of a buffer into a scalar variable.
Parameters
buf | Data buffer |
offset | Byte offset into the buffer where to start the decoding |
method | What type of value is encoded in the buffer |
Available methods:
| Method | Length | Type | Description |
|---|---|---|---|
| BT_INT16 | 16 bit | signed integer | Big endian integer |
| BT_UINT16 | 16 bit | unsigned integer | Big endian integer |
| BT_INT32 | 32 bit | signed integer | Big endian integer |
| BT_UINT32 | 32 bit | unsigned integer | Big endian integer |
| BT_INT32LE | 32 bit | signed integer | Little endian integer |
| BT_UINT32LE | 32 bit | unsigned integer | Little endian integer |
| BT_FLOAT | 32 bit | float | IEEE 732 floating point |
Also available for decoding bitmaps:
Bit offset : BT_BITOFS0 through BT_BITOFS15
Bit mask : BT_BITMASK1 through BT_BITMASK8
The BT_BITOFSx and BT_BITMASKx methods can be OR:ed together for bitmask decoding.
Example: To extract a 3 bit value from bit position 5,6 and 7, use BT_BITOFS5 | BT_BITMASK3
Return value
Returns the decoded value