Control Statements

The following control statements are parsed but not processed:

• ALTERMOD
• COMPRESS
• COPYGRP
• COPYMOD

Additional differences between behavior on the mainframe and in MSS are as follows:

• MSS does not differentiate between PDS and PDSE organizations, so operations specific to PDSEs are not processed.
• On the mainframe, specifying the same data set for INDD and OUTDD results in the data set being compressed. On MSS, such compression is not available, so no processing takes place.
• On the mainframe, you can unload a PDS to an unload data set (by specifying a PDS as the INDD and a sequential data set as the OUTDD with no SYSIN) and reload a member from an unload data set into a PDS (by specifying a sequential data set as the INDD and a PDS as the OUTDD). Neither of these operations are supported in MSS.
• Operations on load modules are not processed in MSS.