IBM 5280 Distributed Data System - Index of

Hex Length inDisplace- Bytes (inment Hex) Description40 Used only for SCS conversion data sets; a pointer into thephysical I/O buffer where the data is formatted.41 For keyed data sets, the table number of the keyed indexfile in main storage. Hex FF cannot be used. See AddressingThrough a System Table, in Chapter 4, for informationabout finding tables in storage.For SCS conversion data sets, the line number of thecurrent line.42 2 For keyed data sets, the number of logical records betweenkey entries on indexed files.For SCS conversion data sets, the line that generatedexternal status (42) and the page size (43).44 2 For keyed data sets, the location of the index key withinthe logical record.For SCS conversion data sets, the address of the formattable entry being processed on open, which contains theSGEA (set graphic error action) parameters. After open,byte 44 has the number of blanks processed, and byte 45has the number of bytes processed in the logical buffer.46 For keyed data sets, the length minus one of the index key.For SCS conversion data sets, the number of charactersprocessed in the line.47 Used only for SCS conversion data sets; the number ofcharacters per line.48 4 Microprocessor save area.84