gtps1m3fSystem Macros

ISDAC-Interrogate Symbolic Device Address (SDA) Status

Use this system macro to return the subchannel number, status, and (if mounted) the mount parameters passed by the MSDAC macro, which is the mount symbolic device address (SDA) macro. Optionally, the path management control words and the subchannel status words will be returned.

See MSDAC-Mount a Symbolic Device Address (SDA) for more information about the MSDAC macro.

Format




label
A symbolic name can be assigned to the macro statement.

DDB
The device data block (DDB), which can be either of the following:

label1
A symbol can be assigned to an area of memory that contains a DDB as defined by the DCTDDB DSECT.

(reg)
A register with the address of the area of memory that contains the DDB.

Entry Requirements

Return Conditions

Programming Considerations

Examples

None.