Motorola HC12 - Manual (Page 257)

Assembler Messages
Message Codes
MCUez HC12 Assembler User’s Manual
MOTOROLA Assembler Messages 257
12.3.13 A2303: ENDM is Illegal
Type: Error
Description: An ENDM directive is detected outside a macro.
Example:
AddM: MACRO
LDD \1
ADD \2
STD \1
ENDM
NOP
AddM data1, data2
ENDM
Tip: Remove the superfluous ENDM directive.
Example:
AddM: MACRO
LDD \1
ADD \2
STD \1
ENDM
NOP
AddM data1, data2