The execute form of the MSGDISP macro is:

RDY

DCB=addr—RX-Type address or (2-12)

MF=(E,addr)

specifies that the execute form of MSGDISP and an existing parameter list is to be used.

addr—RX-Type address, (1), or (2-12)

specifies an in-storage address of the parameter list.

TXT={'msgtxt'|addr}

'msgtxt'

specifies the 1- to 6-character text. The text must be enclosed in apostrophes.

addr—RX-Type address or (2-12)

specifies an in-storage address of an area containing the six bytes of text to be displayed.