Use the execute form of the IOSCMXA macro together with the list form of the macro for applications that require reentrant code. The execute form of the macro stores the parameters into the storage area defined by the list form.
The execute form of the IOSCMXA macro is written as follows:
| Syntax | Description |
|---|---|
| name | name: symbol. Begin name in column 1. |
| ␢ | One or more blanks must precede IOSCMXA. |
| IOSCMXA | |
| ␢ | One or more blanks must follow IOSCMXA. |
| UCBPTR=ucbptr addr | ucbptr addr: RX-type address or register (2) - (12). |
| ,UCBCXPTR=ucbcxptr addr | ucbcxptr addr: RX-type address or register (2) - (12). |
| ,MF=(E,list addr) | list addr: RX-type address or address in register (2) - (12). |
| ,MF=(E,list addr,COMPLETE) | Default: COMPLETE |
The parameters are explained under the standard form of the IOSCMXA macro with the following exception:
list addr specifies the area that the system uses to contain the parameters.
COMPLETE, which is the default, specifies that the system is to check for required parameters and supply defaults for omitted optional parameters.