gtpm1m14 | TPF V4R1 Migration Guide: 3.1 to 4.1 |
The new SYSUG macro allows you to set bit strings (SYSTC bits) for system generation option bytes 0 through 7. This is optional. The SYSUG macro is called exclusively by the SYSTC macro, just as the SYSTG macro is called for the IBM system generation option bytes.
If you code the SYSUG macro, do so before SIP Stage II. If your system is already built, and you want to add or delete one of these bits, you will need to reassemble and link edit the control program.
You can modify existing SYSUG bits by using the new ZSYSG command. See Modifying System Generation Option Values for more information about the ZSYSG command.