SCTX mapping

Table 1. Structure SCTXIN
`Offset Dec`	`Offset Hex`	`Type`	`Len`	`Name(Dim)`	`Description`
`0`	`(0)`	`STRUCTURE`	`176`	`SCTXIN`	`STEP CONTROL TABLE EXTENSION (SCTX)`
`0`	`(0)`	`ADDRESS`	`3`	`SCTXSVA`	`SVA OF SCTX`
`3`	`(3)`	`CHARACTER`	`1`	`SCTXID`	`BLOCK ID OF SCTX = 0C`
`4`	`(4)`	`CHARACTER`	`104`	`SCTXRSWA`	`CHECKPOINT RESTART WORK AREA`
`4`	`(4)`	`CHARACTER`	`100`	`SCTXPARM`	`If SCTPARMDD is off, this field contains the value passed by the PARM parameter. If SCTPARMDD is on, this field contains the 8 byte DDname passed by the PARMDD parameter`
`104`	`(68)`	`CHARACTER`	`4`	`SCTXRSV1`	`RESERVED FOR CHECKPOINT RESTART`
`108`	`(6C)`	`UNSIGNED`	`4`	`SCTXSTL`	`MAXIMUM STEP RUNNING TIME`
`112`	`(70)`	`UNSIGNED`	`4`	`SCTXABCC`	`ABEND COMPLETION CODE FOR THIS STEP`
`116`	`(74)`	`CHARACTER`	`47`	`SCTXIFST`	`IFBS FOR THIS STEP TO EXECUTE`
`116`	`(74)`	`CHARACTER`	`2`	`SCTXIFEL`	`IF OR ELSE CLAUSE INDICATORS 0 - IF CLAUSE 1 - ELSE CLAUSE`
`118`	`(76)`	`UNSIGNED`	`3`	`SCTXIFSV(15)`	`ARRAY OF IFB SVAS`
`163`	`(A3)`	`BITSTRING`	`1`	`SCTXMEMS`	`SOURCE OF MEMLIMIT VALUE`
`164`	`(A4)`	`CHARACTER`	`8`	`SCTXMLSZ`	`MEMLIMIT SIZE (IN MB)`
`172`	`(AC)`	`UNSIGNED`	`4`	`SCTXSTMT`	`STATEMENT NUMBER`