A remote data management parameter list (data event control block) is used in, and can be modified by, the execute form of the READ macro. The data event control block can be generated by the list form of either a READ or WRITE macro.

The description of the standard form of the READ macro explains the function of each parameter. The description of the standard form also indicates the parameters used for each access method and the meaning of 'S' when coded for the area address, length, and key address parameters. For each access method, 'S' can be coded only for those parameters for which it can be coded in the standard form of the macro. The format description below indicates the optional and required parameters in the execute form only.

If your program executes in 31-bit mode, the execute form of READ may be issued above or below the 16MB line.

The execute form of the READ macro is:

decb address—RX-Type Address or (1-12). This must reside below the 16MB line.

type—code one of the types shown in the standard form

dcb address—RX-Type Address or (2-12)

area address—RX-Type Address, (2-12), or 'S'

length—symbol, decimal digit, absexp, (2-12), or 'S'

key address—RX-Type Address, (2-12), or 'S'

block address—RX-Type Address, or (2-12)