Zilog EZ80F916 - Manual (Page 242)

UM014423-0607
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
222
ENDMACRO RECURS_MAC
Delimiting Macro Arguments
Macro arguments can be delimited by using the current macro delimiter characters defined
using the
MACDELIM
directive. The delimiters can be used to include commas and spaces
that are not normally allowed as part of an argument. The default delimiters are brackets
{ }
, but braces
[ ]
and parentheses
( )
are also allowed.
Example
BRA: MACRO ARG1
JP ARG1
ENDMAC LJMP
Invocation
BRA {dummy,X}
Result
JP dummy,X
LABELS
Labels are considered symbolic representations of memory locations and can be used to
reference that memory location within an expression. See “Label Field” on page 188 for
the form of a legal label.
The following sections describe labels:
•
“Anonymous Labels” on page 222
•
“Local Labels” on page 223
•
“Importing and Exporting Labels” on page 223
•
“Label Spaces” on page 223
Anonymous Labels
The ZDS II assembler supports anonymous labels. The following table lists the reserved
symbols provided for this purpose.
Table 10. Anonymous Labels
Symbol Description
$$ Anonymous label. This symbol can be used as a label an arbitrary number of times.