Potential predecessor segment The value of CPLNUM12 in the common data segment describes the number of potential predecessor segments. Offsets Dec Hex Type Len Name (Dim) Description 0 (0) STRUCTURE 24 CPLENT12 POTENTIAL SUCCESSOR ENTRY 0 (0) SIGNED 2 CPLPRE12 PREDECESSOR OPERATION NUMBER 2 (2) SIGNED 2 CPLSUC12 SUCCESSOR OPERATION NUMBER 4 (4) CHARACTER 16 CPLASUC12 SUCCESSOR APPLICATION NAME 20 (14) BITSTRING 1 CPLFLG12 WORK FLAGS 1... .... CPLMAT12 MATCH FOUND IN MCP ADD .1.. .... * FREE 21 (15) CHARACTER 3 * FREE