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Enabling Xchange SVC

Xchange provides support for Enhanced STCK Support for date/time simulation of Assembler STCK operation code and STCKSYNC macro support. STCK and STCKSYNC support are implemented with one SVC. The SVC is installed as part of the Xchange startup JCL.

  1. Consult your site’s system programmer for an available SVC number between 200 and 255.
    Ensure the SVC number chosen will not be used by any other product.
  2. Edit the JCL shown in the Sample Command Procedure to Initiate Xchange figure, replacing the ??? values on the field SVCNUM with the SVC number.
  3. Specify INSTALL or REFRESH for RUNTYPE.
    Use INSTALL unless specifically told to use REFRESH by Xchange Customer Solutions. When INSTALL is used, a check is done to see if the SVC is installed. If it is not installed, Xchange will dynamically install the specified SVC. The SVC will remain installed until the next system IPL. Between IPLs, using INSTALL during the startup of Xchange ensures that the SVC is installed.
  4. When you are ready to start Xchange, submit the revised JCL.

Xchange provides support for Enhanced STCKE Support for date/time simulation of Assembler STCKE operation code and STCKE macro support. The SVC is installed as part of the Xchange startup JCL.

  1. Consult your site’s system programmer for an available SVC number between 200 and 255.
    Ensure the SVC number chosen will not be used by any other product.
  2. Edit the JCL shown in the Sample Command Procedure to Initiate Xchange figure, replacing the ??? values on the SVCENM field with the SVC number.
  3. Specify INSTALL or REFRESH for RUNETYP.
    Use INSTALL unless specifically told to use REFRESH by Xchange Customer Solutions. When INSTALL is used, a check is done to see if the SVC is installed. If it is not installed, Xchange will dynamically install the specified SVC. The SVC will remain installed until the next system IPL. Between IPLs, using INSTALL during the startup of Xchange ensures that the SVC is installed.

  4. When you are ready to start Xchange, submit the revised JCL.

    Tip

    If Xchange is started without installing the SVC, any zapped modules using Enhanced STCK or STCKE Support will fail with an Sfxx abend, where xx is the hex representation of the SVC number used in the zap.

For information on how to use Enhanced STCK or STCKE Support, see Enhanced-STCK-Support.

 

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