Echelon Neuron - Manual (Page 148)

END (Assembly Control)
The END directive instructs the Neuron assembler to stop reading the current
file and stop compiling. This directive is optional, and is not commonly used.
Do not use the END directive if you plan to integrate your assembly code with a
Neuron C application using the #pragma include_assembly_file Neuron C
directive.
Syntax:
The END directive has no arguments and does not need a label.
END
138 Neuron Assembler Directives