Specifies the Field in the LREC to be compared with the search argument specified with the "S=" Subparameter , The argument must be a valid LREC Field of the REF= DSECT
This argument results in generating the Target part of the Assembler instruction generated in base displacement format , Displacement can be decided at run time using the D/Label , Where label is either a Difference of two labels or a decimal displacement within the LREC
EXAMPLE :
DBRED REF=TRABSQ,UP,KEY1=(R=TRABKEY,S=X'80'),
KEY2=(R=TRABAWB,S=MI0ACC+10)
DBRED REF=TRABSQ,UP,KEY1=(R=TRABKEY,S=X'80'),
KEY2=(R=D/TRABAWB-TRABKEY,S=MI0ACC+10)
DBRED REF=TRABSQ,UP,KEY1=(R=TRABKEY,S=X'80'),
KEY2=(R=D/3,S=MI0ACC+10)