Component Definition Area

All unused or reserved areas must be initialized to binary zeros.

Offset	Type	Description
0	pic x comp-x	bit 7 (x"80") indicates duplicates to be returned in order bit 6 (x"40") indicates DESCENDING key component This byte is valid only if you compiled the program used to create the file with IXNUMKEY.
1	pic x comp-x	bit 7 (x"80") indicates that the field is NUMERIC
		If bit 7 is set (numeric): bit 6 (x"40") indicates that the field is SIGNED NUMERIC bit 5 (x"20") indicates that the field is a non-display field. If bit 7 is set and 5 is set (non-DISPLAY field), bits 0 and 1 are used as follows: 0 - indicates that the field is BINARY 1 - indicates that the field is PACKED-DECIMAL 2 - indicates that the field is COMP-X format 3 - indicates that the field is COMP-5 format bit 2 (value x"04") indicates floating point If bit 7 is set and bit 5 is not set, (DISPLAY field) but bit 6 is set (SIGNED), bits 0 and 1 are used as follows: 0 - indicates SIGN TRAILING INCLUDED 1 - indicates SIGN TRAILING SEPARATE 2 - indicates SIGN LEADING INCLUDED 3 - indicates SIGN LEADING SEPARATE If bit 7 is not set (non-numeric): Bit 1 is set if the collating sequence specified in the FCD is to be applied to this field.
2	pic xxxx comp-x	Offset of component in the record (starting at 0).
6	pic xxxx comp-x	Length of the component (in bytes).