## ALP Programming Guide and Reference

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### ALP3722: Expression is not a segment or group

One of the following illegal conditions occurred:

A segment override expression (using the colon (:) operator) did not contain a valid segment register, segment name or group name expression on the left side of the colon operator.

An ASSUME directive contained an expression that did not evaluate to a valid segment or group name. The argument to the ASSUME directive specified a machine segment register, which may only be associated with a segment or group name.

Recovery: Verify the correct spelling of either the register argument or the segment name or group name expression.