Define LDA Concept

   *FOR READING AND WRITING THE DATA AREA IN AS400/RPG.
D* LOCAL DATA AREA DATA STRUCTURE
D LDADS                  DS
D LDB                 4                  5
D LFNAM         81                90
D LFTRN         102             102
D LETP            105             105
D LPRD           108             108
************************************************************************************
C                 *DTAARA     DEFINE         *LDA             LDADS
C                                        IN                   LDADS                                                      READ LDA
C*Change Lda variable using program variable
C                                        OUT               LDADS                                                      WRITE LDA