| macroinstructions: | USSCMD |
| dependencies: | none |
Specifies the valid command that is to replace the user-defined command specified by the CMD operand. See Example 2 in Examples of USS command conversion for an example of a user-defined command that is to be replaced.
If the REP operand is not coded, the value specified in the CMD operand is used. In this case, CMD must specify a valid command. See Example 5 in Examples of USS command conversion for an example.