Motorola HC12 - Manual (Page 201)

Assembler Directives
XDEF — External Symbol Definition
MCUez HC12 Assembler User’s Manual
MOTOROLA Assembler Directives 201
8.37 XDEF — External Symbol Definition
Syntax: XDEF [.] [,]...
where
= B, W (default), or L
Description: This directive specifies labels defined in the current module
that are to be passed to the linker as labels that can be
referenced by other modules linked to the current module.
The number of symbols listed in an XDEF directive is only
limited by the memory available at assembly time.
Example:
XDEF Global ;Global can be referenced in other module
XDEF AnyCase ;Note that the linker and assembler are
; case sensitive to names.
GLOBAL: DS.B 4
...
AnyCase NOP