## ALP Programming Guide and Reference

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### Anonymous Label Aliases

The Anonymous Label Aliases are reserved symbolic names that return a context-sensitive value when referenced in expressions.

The reserved name @B (backward reference) returns the internally generated name representing the nearest @@: code label appearing before the current location in the input stream.

The reserved name @F (forward reference) returns the internally generated name representing the nearest @@: code label appearing after the current location in the input stream.

Anonymous-Label-Alias:
@B
@F