## ALP Programming Guide and Reference

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### ALP3303: Can't be preceded by data label

The referenced token is either an instruction mnemonic or a user identifier that appears after a label.

If the referenced token is an instruction mnemonic, then the preceding label must be followed by a single colon (:) or double colon (::). Data labels may not be used to refer to instructions. Otherwise, it is invalid to have two labels appearing in succession.

Recovery: Check for misspellings in either identifier, and that the identifiers were specified using the correct uppercase and lowercase letters if case sensitive assembly is in effect.