Setting up the request block
The request block consists of fields in which you provide information about your request, and into which the system stores information about the success of the request. The following table indicates the fields into which you must place a value and those that the system uses to return information.
| RB Fields That You Must Initialize | RB Fields Into Which the System Returns Information |
|---|---|
S99RBLN |
S99ERROR |
The request block is required input to DYNALLOC. It must begin on a fullword boundary. Mapping macro IEFZB4D0 assigns it a DSECT name of S99RB. It contains the following fields (the names in parentheses are those assigned by IEFZB4D0):