INS 26/9 ;09C1 MOVEI T1,DVDIBP ;BATCH PTY (ALSO DISABLE MESSAGE REASSEMBLY) ANDCAM T1,DEVCHR(P3) ;CLEAR IT FIRST TDNE T1,DEVCHR(P2) ;CHECK MPX IORM T1,DEVCHR(P3) ;PROPAGATE STATE TO TARGET SUM 145856