gtps1m1uSystem Macros

CIOSC-Request a Mount, Dismount or Status of an SDA

Use this system macro to:

Format




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

FUNCT
This is the name of the function to be performed. It must be one of the following values:

MOUNT
Specified SDA is to be mounted

DISMOUNT
Specified SDA is to be dismounted

STATUS
Return the mount status of the specified SDA

PARM
This is the required parameter for the function to be performed.

MOUNT
This is a label assigned to an area of storage containing a MDR or a register containing the address of a MDR as defined by the DCTMDR DSECT. See MSDAC-Mount a Symbolic Device Address (SDA) for more information.

DISMOUNT
This is the label of a halfword field containing the SDA or a register with the SDA in bytes 2-3 and zeros in bytes 0-1. See the DSDAC-Dismount a Symbolic Device Address (SDA) for more information.

STATUS
This is a label assigned to an area of storage containing a DDB or a register containing the address of a DDB as defined by the DCTDDB DSECT. See ISDAC-Interrogate Symbolic Device Address (SDA) Status for more information.

Entry Requirements

R9 must contain the address of the ECB being processed.

Return Conditions

Programming Considerations

Examples

None.