Offset Size Name Description
-------- -------- ---------------- --------------------------------------------------------
0x00 var FilterNum Filter number
Optional - only present if READ_FILTER_NUM flag is set
var var BlockStart Block Start Position
If flag ADD_258_BLOCK_START flag is set,
258 will be added to this value
var var BlockLength Optional - only present if READ_BLOCK_LENGTH flag is set
var var Registers Contains a bit mask of registers of length 7 bits
followed by up to 7 register values
Optional - only present if READ_REGISTERS flag is set
var var ByteCodeLen (L) Length of the following ByteCode field in bytes
var L ByteCode ByteCode to be compiled