Echelon Neuron - Manual (Page 142)

Overview of the Assembler Directives
An assembler directive provides information to the Neuron Assembler to control
or affect the processing of the remainder of the assembly file. All directives are
optional. Many assembly files do not require any directives.
Table 60 lists the directives for the Neuron Assembler, grouped by general
function: symbol control and scope control, data allocation, segment control,
conditional assembly, and other directives.
Table 60. Neuron Assembler Directives
Symbols and Scope Control
APEXP, EXPORT Export symbol
EQU Define mnemonic for constant
IMPORT Import external symbol for linkage
INCLUDE Include assembly source file
LIBRARY Import function library
Data Allocation
DATA.B Define initialized data
RES Reserve space for uninitialized data
Segment Control
ORG Specify location in segment
SEG Select segment
Conditional Assembly
ELSE, ELSEIF
Control conditional assembly
ENDIF, IF
ERROR
IFDEF, IFNDEF
Other Directives
END End assembly
LIST, NOLIST, PAGE, SUBHEAD Control listing
132 Neuron Assembler Directives